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-rw-r--r--Makefile.am1
-rw-r--r--configure.ac1
-rw-r--r--libart_lgpl/AUTHORS1
-rw-r--r--libart_lgpl/COPYING482
-rw-r--r--libart_lgpl/MAINTAINERS7
-rw-r--r--libart_lgpl/Makefile.am82
-rw-r--r--libart_lgpl/README19
-rw-r--r--libart_lgpl/README.CVS14
-rw-r--r--libart_lgpl/art_affine.c182
-rw-r--r--libart_lgpl/art_affine.h60
-rw-r--r--libart_lgpl/art_alphagamma.h45
-rw-r--r--libart_lgpl/art_bpath.c91
-rw-r--r--libart_lgpl/art_bpath.h53
-rw-r--r--libart_lgpl/art_filterlevel.h67
-rw-r--r--libart_lgpl/art_gray_svp.c123
-rw-r--r--libart_lgpl/art_gray_svp.h41
-rw-r--r--libart_lgpl/art_misc.c77
-rw-r--r--libart_lgpl/art_misc.h97
-rw-r--r--libart_lgpl/art_pathcode.h39
-rw-r--r--libart_lgpl/art_point.h40
-rw-r--r--libart_lgpl/art_rect.c157
-rw-r--r--libart_lgpl/art_rect.h72
-rw-r--r--libart_lgpl/art_rect_svp.c82
-rw-r--r--libart_lgpl/art_rect_svp.h43
-rw-r--r--libart_lgpl/art_rect_uta.c133
-rw-r--r--libart_lgpl/art_rect_uta.h38
-rw-r--r--libart_lgpl/art_render.c735
-rw-r--r--libart_lgpl/art_render.h147
-rw-r--r--libart_lgpl/art_rgb.c175
-rw-r--r--libart_lgpl/art_rgb.h40
-rw-r--r--libart_lgpl/art_rgb_affine.c106
-rw-r--r--libart_lgpl/art_rgb_affine.h45
-rw-r--r--libart_lgpl/art_rgb_affine_private.c127
-rw-r--r--libart_lgpl/art_rgb_affine_private.h41
-rw-r--r--libart_lgpl/art_rgb_rgba_affine.c142
-rw-r--r--libart_lgpl/art_rgb_rgba_affine.h46
-rw-r--r--libart_lgpl/art_rgb_svp.c457
-rw-r--r--libart_lgpl/art_rgb_svp.h50
-rw-r--r--libart_lgpl/art_svp.c74
-rw-r--r--libart_lgpl/art_svp.h57
-rw-r--r--libart_lgpl/art_svp_intersect.c1675
-rw-r--r--libart_lgpl/art_svp_intersect.h68
-rw-r--r--libart_lgpl/art_svp_ops.c168
-rw-r--r--libart_lgpl/art_svp_ops.h37
-rw-r--r--libart_lgpl/art_svp_point.c144
-rw-r--r--libart_lgpl/art_svp_point.h42
-rw-r--r--libart_lgpl/art_svp_render_aa.c462
-rw-r--r--libart_lgpl/art_svp_render_aa.h63
-rw-r--r--libart_lgpl/art_svp_vpath.c214
-rw-r--r--libart_lgpl/art_svp_vpath.h39
-rw-r--r--libart_lgpl/art_svp_vpath_stroke.c617
-rw-r--r--libart_lgpl/art_svp_vpath_stroke.h65
-rw-r--r--libart_lgpl/art_svp_wind.h46
-rw-r--r--libart_lgpl/art_uta.c88
-rw-r--r--libart_lgpl/art_uta.h68
-rw-r--r--libart_lgpl/art_uta_rect.c111
-rw-r--r--libart_lgpl/art_uta_rect.h37
-rw-r--r--libart_lgpl/art_uta_svp.c54
-rw-r--r--libart_lgpl/art_uta_svp.h40
-rw-r--r--libart_lgpl/art_uta_vpath.c376
-rw-r--r--libart_lgpl/art_uta_vpath.h45
-rw-r--r--libart_lgpl/art_vpath.c112
-rw-r--r--libart_lgpl/art_vpath.h57
-rw-r--r--libart_lgpl/art_vpath_bpath.c298
-rw-r--r--libart_lgpl/art_vpath_bpath.h43
-rw-r--r--libart_lgpl/art_vpath_dash.c199
-rw-r--r--libart_lgpl/art_vpath_dash.h46
-rw-r--r--libart_lgpl/art_vpath_svp.c196
-rw-r--r--libart_lgpl/art_vpath_svp.h38
-rw-r--r--libart_lgpl/libart.h37
-rw-r--r--libart_lgpl/libart.m4165
71 files changed, 0 insertions, 9939 deletions
diff --git a/Makefile.am b/Makefile.am
index 4776b33079..49618cfc81 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -60,7 +60,6 @@ SUBDIRS = \
m4 \
data \
smclient \
- libart_lgpl \
libgnomecanvas \
e-util \
a11y \
diff --git a/configure.ac b/configure.ac
index a7a95cfb9e..c9e127e6ed 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1758,7 +1758,6 @@ help/quickref/pl/Makefile
help/quickref/pt/Makefile
help/quickref/sv/Makefile
help/quickref/sq/Makefile
-libart_lgpl/Makefile
libgnomecanvas/Makefile
shell/Makefile
shell/evolution-nognome
diff --git a/libart_lgpl/AUTHORS b/libart_lgpl/AUTHORS
deleted file mode 100644
index fbb51b36a4..0000000000
--- a/libart_lgpl/AUTHORS
+++ /dev/null
@@ -1 +0,0 @@
-Raph Levien <raph@acm.org>
diff --git a/libart_lgpl/COPYING b/libart_lgpl/COPYING
deleted file mode 100644
index bf50f20de6..0000000000
--- a/libart_lgpl/COPYING
+++ /dev/null
@@ -1,482 +0,0 @@
- GNU LIBRARY GENERAL PUBLIC LICENSE
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- Copyright (C) <year> <name of author>
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with this library; if not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307 USA.
-
-Also add information on how to contact you by electronic and paper mail.
-
-You should also get your employer (if you work as a programmer) or your
-school, if any, to sign a "copyright disclaimer" for the library, if
-necessary. Here is a sample; alter the names:
-
- Yoyodyne, Inc., hereby disclaims all copyright interest in the
- library `Frob' (a library for tweaking knobs) written by James Random Hacker.
-
- <signature of Ty Coon>, 1 April 1990
- Ty Coon, President of Vice
-
-That's all there is to it!
diff --git a/libart_lgpl/MAINTAINERS b/libart_lgpl/MAINTAINERS
deleted file mode 100644
index dfeac41c66..0000000000
--- a/libart_lgpl/MAINTAINERS
+++ /dev/null
@@ -1,7 +0,0 @@
-Alex Larsson
-E-mail: alexl@redhat.com
-Userid: alexl
-
-Kjartan Maraas
-E-mail: kmaraas@gnome.org
-Userid: kmaraas
diff --git a/libart_lgpl/Makefile.am b/libart_lgpl/Makefile.am
deleted file mode 100644
index 1291a7bfd4..0000000000
--- a/libart_lgpl/Makefile.am
+++ /dev/null
@@ -1,82 +0,0 @@
-libart_lgplincludedir = $(privincludedir)/libart_lgpl
-
-privsolib_LTLIBRARIES = libart_lgpl.la
-
-libart_lgpl_la_CPPFLAGS = \
- $(AM_CPPFLAGS) \
- -I$(top_srcdir) \
- $(GNOME_PLATFORM_CFLAGS)
-
-libart_lgplinclude_HEADERS = \
- art_affine.h \
- art_alphagamma.h \
- art_bpath.h \
- art_filterlevel.h \
- art_gray_svp.h \
- art_misc.h \
- art_pathcode.h \
- art_point.h \
- art_rect.h \
- art_rect_svp.h \
- art_rect_uta.h \
- art_render.h \
- art_rgb.h \
- art_rgb_affine.h \
- art_rgb_affine_private.h \
- art_rgb_rgba_affine.h \
- art_rgb_svp.h \
- art_svp.h \
- art_svp_intersect.h \
- art_svp_ops.h \
- art_svp_point.h \
- art_svp_render_aa.h \
- art_svp_vpath.h \
- art_svp_vpath_stroke.h \
- art_svp_wind.h \
- art_uta.h \
- art_uta_rect.h \
- art_uta_svp.h \
- art_uta_vpath.h \
- art_vpath.h \
- art_vpath_bpath.h \
- art_vpath_dash.h \
- art_vpath_svp.h \
- libart.h
-
-libart_lgpl_la_SOURCES = \
- art_affine.c \
- art_bpath.c \
- art_gray_svp.c \
- art_misc.c \
- art_rect.c \
- art_rect_svp.c \
- art_rect_uta.c \
- art_render.c \
- art_rgb.c \
- art_rgb_affine.c \
- art_rgb_affine_private.c \
- art_rgb_rgba_affine.c \
- art_rgb_svp.c \
- art_svp.c \
- art_svp_intersect.c \
- art_svp_ops.c \
- art_svp_point.c \
- art_svp_render_aa.c \
- art_svp_vpath.c \
- art_svp_vpath_stroke.c \
- art_uta.c \
- art_uta_rect.c \
- art_uta_svp.c \
- art_uta_vpath.c \
- art_vpath.c \
- art_vpath_bpath.c \
- art_vpath_dash.c \
- art_vpath_svp.c
-
-libart_lgpl_la_LIBADD = \
- $(GNOME_PLATFORM_LIBS) \
- $(MATH_LIB)
-
-libart_lgpl_la_LDFLAGS = $(NO_UNDEFINED)
-
--include $(top_srcdir)/git.mk
diff --git a/libart_lgpl/README b/libart_lgpl/README
deleted file mode 100644
index 882527e53f..0000000000
--- a/libart_lgpl/README
+++ /dev/null
@@ -1,19 +0,0 @@
-This is the LGPL'd component of libart. All functions needed for
-running the Gnome canvas, and for printing support, will be going in
-here. The GPL'd component will be getting various enhanced functions
-for specific applications.
-
-Libart is free software. It is also for sale. For information about
-licensing libart, please contact Raph Levien
-<raph@acm.org>. Contributions to the codebase are also very welcome,
-but the copyright must be assigned in writing to preserve the
-licensing flexibility.
-
-
-For more information about libart, see the web page:
-
- http://www.levien.com/libart/
-
-There's also a libart tutorial available at
-http://www.gnome.org/~mathieu/libart/libart.html
-
diff --git a/libart_lgpl/README.CVS b/libart_lgpl/README.CVS
deleted file mode 100644
index 7ba42f7e70..0000000000
--- a/libart_lgpl/README.CVS
+++ /dev/null
@@ -1,14 +0,0 @@
-Welcome to the libart source tree!
-
-This code is being developed in a "free software for sale"
-model. Thus, it's available under a free software license (LGPL for
-this module), but I'm also requesting that for all changes to the code
-the copyright gets assigned back to me.
-
-So if you want to contribute, please do, but contact me about getting
-the copyright assigned. Otherwise, I will have to back your changes
-out.
-
-Thanks!
-
-Raph Levien <raph@acm.org>
diff --git a/libart_lgpl/art_affine.c b/libart_lgpl/art_affine.c
deleted file mode 100644
index dd6866ca86..0000000000
--- a/libart_lgpl/art_affine.c
+++ /dev/null
@@ -1,182 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/* Simple manipulations with affine transformations */
-
-#include "config.h"
-#include "art_affine.h"
-#include "art_misc.h" /* for M_PI */
-
-#include <math.h>
-#include <stdio.h> /* for sprintf */
-#include <string.h> /* for strcpy */
-
-/* According to a strict interpretation of the libart structure, this
- routine should go into its own module, art_point_affine. However,
- it's only two lines of code, and it can be argued that it is one of
- the natural basic functions of an affine transformation.
-*/
-
-/**
- * art_affine_point: Do an affine transformation of a point.
- * @dst: Where the result point is stored.
- * @src: The original point.
- @ @affine: The affine transformation.
- **/
-void
-art_affine_point (ArtPoint *dst, const ArtPoint *src,
- const gdouble affine[6])
-{
- gdouble x, y;
-
- x = src->x;
- y = src->y;
- dst->x = x * affine[0] + y * affine[2] + affine[4];
- dst->y = x * affine[1] + y * affine[3] + affine[5];
-}
-
-/**
- * art_affine_invert: Find the inverse of an affine transformation.
- * @dst: Where the resulting affine is stored.
- * @src: The original affine transformation.
- *
- * All non-degenerate affine transforms are invertible. If the original
- * affine is degenerate or nearly so, expect numerical instability and
- * very likely core dumps on Alpha and other fp-picky architectures.
- * Otherwise, @dst multiplied with @src, or @src multiplied with @dst
- * will be (to within roundoff error) the identity affine.
- **/
-void
-art_affine_invert (gdouble dst[6], const gdouble src[6])
-{
- gdouble r_det;
-
- r_det = 1.0 / (src[0] * src[3] - src[1] * src[2]);
- dst[0] = src[3] * r_det;
- dst[1] = -src[1] * r_det;
- dst[2] = -src[2] * r_det;
- dst[3] = src[0] * r_det;
- dst[4] = -src[4] * dst[0] - src[5] * dst[2];
- dst[5] = -src[4] * dst[1] - src[5] * dst[3];
-}
-
-/**
- * art_affine_multiply: Multiply two affine transformation matrices.
- * @dst: Where to store the result.
- * @src1: The first affine transform to multiply.
- * @src2: The second affine transform to multiply.
- *
- * Multiplies two affine transforms together, i.e. the resulting @dst
- * is equivalent to doing first @src1 then @src2. Note that the
- * PostScript concat operator multiplies on the left, i.e. "M concat"
- * is equivalent to "CTM = multiply (M, CTM)";
- *
- * It is safe to call this function with @dst equal to @src1 or @src2.
- **/
-void
-art_affine_multiply (gdouble dst[6], const gdouble src1[6], const gdouble src2[6])
-{
- gdouble d0, d1, d2, d3, d4, d5;
-
- d0 = src1[0] * src2[0] + src1[1] * src2[2];
- d1 = src1[0] * src2[1] + src1[1] * src2[3];
- d2 = src1[2] * src2[0] + src1[3] * src2[2];
- d3 = src1[2] * src2[1] + src1[3] * src2[3];
- d4 = src1[4] * src2[0] + src1[5] * src2[2] + src2[4];
- d5 = src1[4] * src2[1] + src1[5] * src2[3] + src2[5];
- dst[0] = d0;
- dst[1] = d1;
- dst[2] = d2;
- dst[3] = d3;
- dst[4] = d4;
- dst[5] = d5;
-}
-
-/**
- * art_affine_identity: Set up the identity matrix.
- * @dst: Where to store the resulting affine transform.
- *
- * Sets up an identity matrix.
- **/
-void
-art_affine_identity (gdouble dst[6])
-{
- dst[0] = 1;
- dst[1] = 0;
- dst[2] = 0;
- dst[3] = 1;
- dst[4] = 0;
- dst[5] = 0;
-}
-
-/**
- * art_affine_scale: Set up a scaling matrix.
- * @dst: Where to store the resulting affine transform.
- * @sx: X scale factor.
- * @sy: Y scale factor.
- *
- * Sets up a scaling matrix.
- **/
-void
-art_affine_scale (gdouble dst[6], gdouble sx, gdouble sy)
-{
- dst[0] = sx;
- dst[1] = 0;
- dst[2] = 0;
- dst[3] = sy;
- dst[4] = 0;
- dst[5] = 0;
-}
-
-/**
- * art_affine_translate: Set up a translation matrix.
- * @dst: Where to store the resulting affine transform.
- * @tx: X translation amount.
- * @tx: Y translation amount.
- *
- * Sets up a translation matrix.
- **/
-void
-art_affine_translate (gdouble dst[6], gdouble tx, gdouble ty)
-{
- dst[0] = 1;
- dst[1] = 0;
- dst[2] = 0;
- dst[3] = 1;
- dst[4] = tx;
- dst[5] = ty;
-}
-
-/**
- * art_affine_expansion: Find the affine's expansion factor.
- * @src: The affine transformation.
- *
- * Finds the expansion factor, i.e. the square root of the factor
- * by which the affine transform affects area. In an affine transform
- * composed of scaling, rotation, shearing, and translation, returns
- * the amount of scaling.
- *
- * Return value: the expansion factor.
- **/
-gdouble
-art_affine_expansion (const gdouble src[6])
-{
- return sqrt (fabs (src[0] * src[3] - src[1] * src[2]));
-}
-
diff --git a/libart_lgpl/art_affine.h b/libart_lgpl/art_affine.h
deleted file mode 100644
index 2c50df1382..0000000000
--- a/libart_lgpl/art_affine.h
+++ /dev/null
@@ -1,60 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_AFFINE_H__
-#define __ART_AFFINE_H__
-
-#include <libart_lgpl/art_point.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-void
-art_affine_point (ArtPoint *dst, const ArtPoint *src,
- const gdouble affine[6]);
-
-void
-art_affine_invert (gdouble dst_affine[6], const gdouble src_affine[6]);
-
-void
-art_affine_multiply (gdouble dst[6],
- const gdouble src1[6], const gdouble src2[6]);
-
-/* set up the identity matrix */
-void
-art_affine_identity (gdouble dst[6]);
-
-/* set up a scaling matrix */
-void
-art_affine_scale (gdouble dst[6], gdouble sx, gdouble sy);
-
-/* set up a translation matrix */
-void
-art_affine_translate (gdouble dst[6], gdouble tx, gdouble ty);
-
-/* find the affine's "expansion factor", i.e. the scale amount */
-gdouble
-art_affine_expansion (const gdouble src[6]);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __ART_AFFINE_H__ */
diff --git a/libart_lgpl/art_alphagamma.h b/libart_lgpl/art_alphagamma.h
deleted file mode 100644
index a779ae86a8..0000000000
--- a/libart_lgpl/art_alphagamma.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_ALPHAGAMMA_H__
-#define __ART_ALPHAGAMMA_H__
-
-/* Alphagamma tables */
-
-#include <libart_lgpl/art_misc.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-typedef struct _ArtAlphaGamma ArtAlphaGamma;
-
-struct _ArtAlphaGamma {
- /*< private >*/
- gdouble gamma;
- gint invtable_size;
- gint table[256];
- art_u8 invtable[1];
-};
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __ART_SVP_H__ */
diff --git a/libart_lgpl/art_bpath.c b/libart_lgpl/art_bpath.c
deleted file mode 100644
index 8c8dad0480..0000000000
--- a/libart_lgpl/art_bpath.c
+++ /dev/null
@@ -1,91 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/* Basic constructors and operations for bezier paths */
-
-#include "config.h"
-#include "art_bpath.h"
-
-#include <math.h>
-
-/**
- * art_bpath_affine_transform: Affine transform an #ArtBpath.
- * @src: The source #ArtBpath.
- * @matrix: The affine transform.
- *
- * Affine transform the bezpath, returning a newly allocated #ArtBpath
- * (allocated using art_alloc()).
- *
- * Result (x', y') = (matrix[0] * x + matrix[2] * y + matrix[4],
- * matrix[1] * x + matrix[3] * y + matrix[5])
- *
- * Return value: the transformed #ArtBpath.
- **/
-ArtBpath *
-art_bpath_affine_transform (const ArtBpath *src, const gdouble matrix[6])
-{
- gint i;
- gint size;
- ArtBpath *new;
- ArtPathcode code;
- gdouble x, y;
-
- for (i = 0; src[i].code != ART_END; i++);
- size = i;
-
- new = art_new (ArtBpath, size + 1);
-
- for (i = 0; i < size; i++)
- {
- code = src[i].code;
- new[i].code = code;
- if (code == ART_CURVETO)
- {
- x = src[i].x1;
- y = src[i].y1;
- new[i].x1 = matrix[0] * x + matrix[2] * y + matrix[4];
- new[i].y1 = matrix[1] * x + matrix[3] * y + matrix[5];
- x = src[i].x2;
- y = src[i].y2;
- new[i].x2 = matrix[0] * x + matrix[2] * y + matrix[4];
- new[i].y2 = matrix[1] * x + matrix[3] * y + matrix[5];
- }
- else
- {
- new[i].x1 = 0;
- new[i].y1 = 0;
- new[i].x2 = 0;
- new[i].y2 = 0;
- }
- x = src[i].x3;
- y = src[i].y3;
- new[i].x3 = matrix[0] * x + matrix[2] * y + matrix[4];
- new[i].y3 = matrix[1] * x + matrix[3] * y + matrix[5];
- }
- new[i].code = ART_END;
- new[i].x1 = 0;
- new[i].y1 = 0;
- new[i].x2 = 0;
- new[i].y2 = 0;
- new[i].x3 = 0;
- new[i].y3 = 0;
-
- return new;
-}
-
diff --git a/libart_lgpl/art_bpath.h b/libart_lgpl/art_bpath.h
deleted file mode 100644
index e6362d41de..0000000000
--- a/libart_lgpl/art_bpath.h
+++ /dev/null
@@ -1,53 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_BPATH_H__
-#define __ART_BPATH_H__
-
-#include <libart_lgpl/art_misc.h>
-#include <libart_lgpl/art_point.h>
-#include <libart_lgpl/art_pathcode.h>
-
-/* Basic data structures and constructors for bezier paths */
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-typedef struct _ArtBpath ArtBpath;
-
-struct _ArtBpath {
- /*< public >*/
- ArtPathcode code;
- gdouble x1;
- gdouble y1;
- gdouble x2;
- gdouble y2;
- gdouble x3;
- gdouble y3;
-};
-
-ArtBpath *
-art_bpath_affine_transform (const ArtBpath *src, const gdouble matrix[6]);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __ART_BPATH_H__ */
diff --git a/libart_lgpl/art_filterlevel.h b/libart_lgpl/art_filterlevel.h
deleted file mode 100644
index 97d9abb400..0000000000
--- a/libart_lgpl/art_filterlevel.h
+++ /dev/null
@@ -1,67 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_FILTERLEVEL_H__
-#define __ART_FILTERLEVEL_H__
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-typedef enum {
- ART_FILTER_NEAREST,
- ART_FILTER_TILES,
- ART_FILTER_BILINEAR,
- ART_FILTER_HYPER
-} ArtFilterLevel;
-
-/* NEAREST is nearest neighbor. It is the fastest and lowest quality.
-
- TILES is an accurate simulation of the PostScript image operator
- without any interpolation enabled; each pixel is rendered as a tiny
- parallelogram of solid color, the edges of which are implemented
- with antialiasing. It resembles nearest neighbor for enlargement,
- and bilinear for reduction.
-
- BILINEAR is bilinear interpolation. For enlargement, it is
- equivalent to point-sampling the ideal bilinear-interpolated
- image. For reduction, it is equivalent to laying down small tiles
- and integrating over the coverage area.
-
- HYPER is the highest quality reconstruction function. It is derived
- from the hyperbolic filters in Wolberg's "Digital Image Warping,"
- and is formally defined as the hyperbolic-filter sampling the ideal
- hyperbolic-filter interpolated image (the filter is designed to be
- idempotent for 1:1 pixel mapping). It is the slowest and highest
- quality.
-
- Note: at this stage of implementation, most filter modes are likely
- not to be implemented.
-
- Note: cubic filtering is missing from this list, because there isn't
- much point - hyper is just as fast to implement and slightly better
- in quality.
-
-*/
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __ART_PATHCODE_H__ */
diff --git a/libart_lgpl/art_gray_svp.c b/libart_lgpl/art_gray_svp.c
deleted file mode 100644
index f076a69f99..0000000000
--- a/libart_lgpl/art_gray_svp.c
+++ /dev/null
@@ -1,123 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/* Render a sorted vector path into a graymap. */
-
-#include "config.h"
-#include "art_gray_svp.h"
-
-#include <string.h> /* for memset */
-#include "art_misc.h"
-
-#include "art_svp.h"
-#include "art_svp_render_aa.h"
-
-typedef struct _ArtGraySVPData ArtGraySVPData;
-
-struct _ArtGraySVPData {
- art_u8 *buf;
- gint rowstride;
- gint x0, x1;
-};
-
-static void
-art_gray_svp_callback (gpointer callback_data, gint y,
- gint start, ArtSVPRenderAAStep *steps, gint n_steps)
-{
- ArtGraySVPData *data = (ArtGraySVPData *)callback_data;
- art_u8 *linebuf;
- gint run_x0, run_x1;
- gint running_sum = start;
- gint x0, x1;
- gint k;
-
-#if 0
- printf ("start = %d", start);
- running_sum = start;
- for (k = 0; k < n_steps; k++)
- {
- running_sum += steps[k].delta;
- printf (" %d:%d", steps[k].x, running_sum >> 16);
- }
- printf ("\n");
-#endif
-
- linebuf = data->buf;
- x0 = data->x0;
- x1 = data->x1;
-
- if (n_steps > 0)
- {
- run_x1 = steps[0].x;
- if (run_x1 > x0)
- memset (linebuf, running_sum >> 16, run_x1 - x0);
-
- for (k = 0; k < n_steps - 1; k++)
- {
- running_sum += steps[k].delta;
- run_x0 = run_x1;
- run_x1 = steps[k + 1].x;
- if (run_x1 > run_x0)
- memset (linebuf + run_x0 - x0, running_sum >> 16, run_x1 - run_x0);
- }
- running_sum += steps[k].delta;
- if (x1 > run_x1)
- memset (linebuf + run_x1 - x0, running_sum >> 16, x1 - run_x1);
- }
- else
- {
- memset (linebuf, running_sum >> 16, x1 - x0);
- }
-
- data->buf += data->rowstride;
-}
-
-/**
- * art_gray_svp_aa: Render the vector path into the bytemap.
- * @svp: The SVP to render.
- * @x0: The view window's left coord.
- * @y0: The view window's top coord.
- * @x1: The view window's right coord.
- * @y1: The view window's bottom coord.
- * @buf: The buffer where the bytemap is stored.
- * @rowstride: the rowstride for @buf.
- *
- * Each pixel gets a value proportional to the area within the pixel
- * overlapping the (filled) SVP. Pixel (x, y) is stored at:
- *
- * @buf[(y - * @y0) * @rowstride + (x - @x0)]
- *
- * All pixels @x0 <= x < @x1, @y0 <= y < @y1 are generated. A
- * stored value of zero is no coverage, and a value of 255 is full
- * coverage. The area within the pixel (x, y) is the region covered
- * by [x..x+1] and [y..y+1].
- **/
-void
-art_gray_svp_aa (const ArtSVP *svp,
- gint x0, gint y0, gint x1, gint y1,
- art_u8 *buf, gint rowstride)
-{
- ArtGraySVPData data;
-
- data.buf = buf;
- data.rowstride = rowstride;
- data.x0 = x0;
- data.x1 = x1;
- art_svp_render_aa (svp, x0, y0, x1, y1, art_gray_svp_callback, &data);
-}
diff --git a/libart_lgpl/art_gray_svp.h b/libart_lgpl/art_gray_svp.h
deleted file mode 100644
index 1a3c5d9c9a..0000000000
--- a/libart_lgpl/art_gray_svp.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/* Render a sorted vector path into a graymap. */
-
-#ifndef __ART_GRAY_SVP_H__
-#define __ART_GRAY_SVP_H__
-
-#include <libart_lgpl/art_misc.h>
-#include <libart_lgpl/art_svp.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-void
-art_gray_svp_aa (const ArtSVP *svp,
- gint x0, gint y0, gint x1, gint y1,
- art_u8 *buf, gint rowstride);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __ART_GRAY_SVP_H__ */
diff --git a/libart_lgpl/art_misc.c b/libart_lgpl/art_misc.c
deleted file mode 100644
index 08ddcd184c..0000000000
--- a/libart_lgpl/art_misc.c
+++ /dev/null
@@ -1,77 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/* Various utility functions RLL finds useful. */
-
-#include "config.h"
-#include "art_misc.h"
-
-#ifdef HAVE_UINSTD_H
-#include <unistd.h>
-#endif
-#include <stdio.h>
-#include <stdarg.h>
-
-/**
- * art_die: Print the error message to stderr and exit with a return code of 1.
- * @fmt: The printf-style format for the error message.
- *
- * Used for dealing with severe errors.
- **/
-void
-art_die (const gchar *fmt, ...)
-{
- va_list ap;
-
- va_start (ap, fmt);
- vfprintf (stderr, fmt, ap);
- va_end (ap);
- exit (1);
-}
-
-/**
- * art_warn: Print the warning message to stderr.
- * @fmt: The printf-style format for the warning message.
- *
- * Used for generating warnings.
- **/
-void
-art_warn (const gchar *fmt, ...)
-{
- va_list ap;
-
- va_start (ap, fmt);
- vfprintf (stderr, fmt, ap);
- va_end (ap);
-}
-
-gpointer art_alloc (gsize size)
-{
- return malloc (size);
-}
-
-void art_free (gpointer ptr)
-{
- free (ptr);
-}
-
-gpointer art_realloc (gpointer ptr, gsize size)
-{
- return realloc (ptr, size);
-}
diff --git a/libart_lgpl/art_misc.h b/libart_lgpl/art_misc.h
deleted file mode 100644
index a124413e70..0000000000
--- a/libart_lgpl/art_misc.h
+++ /dev/null
@@ -1,97 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/* Simple macros to set up storage allocation and basic types for libart
- functions. */
-
-#ifndef __ART_MISC_H__
-#define __ART_MISC_H__
-
-#include <glib.h>
-#include <stdlib.h> /* for malloc, etc. */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-gpointer art_alloc (gsize size);
-void art_free (gpointer ptr);
-gpointer art_realloc (gpointer ptr, gsize size);
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-/* These aren't, strictly speaking, configuration macros, but they're
- damn handy to have around, and may be worth playing with for
- debugging. */
-#define art_new(type, n) ((type *)art_alloc ((n) * sizeof(type)))
-
-#define art_renew(p, type, n) ((type *)art_realloc (p, (n) * sizeof(type)))
-
-/* This one must be used carefully - in particular, p and max should
- be variables. They can also be pstruct->el lvalues. */
-#define art_expand(p, type, max) \
- do { if (max) { p = art_renew (p, type, max <<= 1); } \
- else { max = 1; p = art_new (type, 1); } } while (0)
-
-typedef gint art_boolean;
-#define ART_FALSE 0
-#define ART_TRUE 1
-
-/* define pi */
-#ifndef M_PI
-#define M_PI 3.14159265358979323846
-#endif /* M_PI */
-
-#ifndef M_SQRT2
-#define M_SQRT2 1.41421356237309504880 /* sqrt(2) */
-#endif /* M_SQRT2 */
-
-/* Provide macros to feature the GCC function attribute.
- */
-#if defined(__GNUC__) && (__GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ > 4))
-#define ART_GNUC_PRINTF( format_idx, arg_idx ) \
- __attribute__((__format__ (__printf__, format_idx, arg_idx)))
-#define ART_GNUC_NORETURN \
- __attribute__((__noreturn__))
-#else /* !__GNUC__ */
-#define ART_GNUC_PRINTF( format_idx, arg_idx )
-#define ART_GNUC_NORETURN
-#endif /* !__GNUC__ */
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-typedef guint8 art_u8;
-typedef guint16 art_u16;
-typedef guint32 art_u32;
-
-void ART_GNUC_NORETURN
-art_die (const gchar *fmt, ...) ART_GNUC_PRINTF (1, 2);
-
-void
-art_warn (const gchar *fmt, ...) ART_GNUC_PRINTF (1, 2);
-
-#ifdef __cplusplus
-}
-#endif
-
-#define ART_USE_NEW_INTERSECTOR
-
-#endif /* __ART_MISC_H__ */
diff --git a/libart_lgpl/art_pathcode.h b/libart_lgpl/art_pathcode.h
deleted file mode 100644
index 87979ceb8f..0000000000
--- a/libart_lgpl/art_pathcode.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_PATHCODE_H__
-#define __ART_PATHCODE_H__
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-typedef enum {
- ART_MOVETO,
- ART_MOVETO_OPEN,
- ART_CURVETO,
- ART_LINETO,
- ART_END
-} ArtPathcode;
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __ART_PATHCODE_H__ */
diff --git a/libart_lgpl/art_point.h b/libart_lgpl/art_point.h
deleted file mode 100644
index a5486d22c6..0000000000
--- a/libart_lgpl/art_point.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_POINT_H__
-#define __ART_POINT_H__
-
-#include <glib.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-typedef struct _ArtPoint ArtPoint;
-
-struct _ArtPoint {
- /*< public >*/
- gdouble x, y;
-};
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __ART_POINT_H__ */
diff --git a/libart_lgpl/art_rect.c b/libart_lgpl/art_rect.c
deleted file mode 100644
index ec53d2d70f..0000000000
--- a/libart_lgpl/art_rect.c
+++ /dev/null
@@ -1,157 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#include "config.h"
-#include "art_rect.h"
-
-#include <math.h>
-
-#ifndef MAX
-#define MAX(a, b) (((a) > (b)) ? (a) : (b))
-#endif /* MAX */
-
-#ifndef MIN
-#define MIN(a, b) (((a) < (b)) ? (a) : (b))
-#endif /* MIN */
-
-/* rectangle primitives stolen from gzilla */
-
-/**
- * art_irect_intersection: Find intersection of two integer rectangles.
- * @dest: Where the result is stored.
- * @src1: A source rectangle.
- * @src2: Another source rectangle.
- *
- * Finds the intersection of @src1 and @src2.
- **/
-void
-art_irect_intersect (ArtIRect *dest, const ArtIRect *src1, const ArtIRect *src2) {
- dest->x0 = MAX (src1->x0, src2->x0);
- dest->y0 = MAX (src1->y0, src2->y0);
- dest->x1 = MIN (src1->x1, src2->x1);
- dest->y1 = MIN (src1->y1, src2->y1);
-}
-
-/**
- * art_irect_empty: Determine whether integer rectangle is empty.
- * @src: The source rectangle.
- *
- * Return value: TRUE if @src is an empty rectangle, FALSE otherwise.
- **/
-gint
-art_irect_empty (const ArtIRect *src) {
- return (src->x1 <= src->x0 || src->y1 <= src->y0);
-}
-
-/**
- * art_drect_copy: Make a copy of a rectangle.
- * @dest: Where the copy is stored.
- * @src: The source rectangle.
- *
- * Copies the rectangle.
- **/
-void
-art_drect_copy (ArtDRect *dest, const ArtDRect *src) {
- dest->x0 = src->x0;
- dest->y0 = src->y0;
- dest->x1 = src->x1;
- dest->y1 = src->y1;
-}
-
-/**
- * art_drect_union: Find union of two rectangles.
- * @dest: Where the result is stored.
- * @src1: A source rectangle.
- * @src2: Another source rectangle.
- *
- * Finds the smallest rectangle that includes @src1 and @src2.
- **/
-void
-art_drect_union (ArtDRect *dest, const ArtDRect *src1, const ArtDRect *src2) {
- if (art_drect_empty (src1)) {
- art_drect_copy (dest, src2);
- } else if (art_drect_empty (src2)) {
- art_drect_copy (dest, src1);
- } else {
- dest->x0 = MIN (src1->x0, src2->x0);
- dest->y0 = MIN (src1->y0, src2->y0);
- dest->x1 = MAX (src1->x1, src2->x1);
- dest->y1 = MAX (src1->y1, src2->y1);
- }
-}
-
-/**
- * art_irect_empty: Determine whether rectangle is empty.
- * @src: The source rectangle.
- *
- * Return value: TRUE if @src is an empty rectangle, FALSE otherwise.
- **/
-gint
-art_drect_empty (const ArtDRect *src) {
- return (src->x1 <= src->x0 || src->y1 <= src->y0);
-}
-
-/**
- * art_drect_affine_transform: Affine transform rectangle.
- * @dst: Where to store the result.
- * @src: The source rectangle.
- * @matrix: The affine transformation.
- *
- * Find the smallest rectangle enclosing the affine transformed @src.
- * The result is exactly the affine transformation of @src when
- * @matrix specifies a rectilinear affine transformation, otherwise it
- * is a conservative approximation.
- **/
-void
-art_drect_affine_transform (ArtDRect *dst,
- const ArtDRect *src,
- const gdouble matrix[6])
-{
- gdouble x00, y00, x10, y10;
- gdouble x01, y01, x11, y11;
-
- x00 = src->x0 * matrix[0] + src->y0 * matrix[2] + matrix[4];
- y00 = src->x0 * matrix[1] + src->y0 * matrix[3] + matrix[5];
- x10 = src->x1 * matrix[0] + src->y0 * matrix[2] + matrix[4];
- y10 = src->x1 * matrix[1] + src->y0 * matrix[3] + matrix[5];
- x01 = src->x0 * matrix[0] + src->y1 * matrix[2] + matrix[4];
- y01 = src->x0 * matrix[1] + src->y1 * matrix[3] + matrix[5];
- x11 = src->x1 * matrix[0] + src->y1 * matrix[2] + matrix[4];
- y11 = src->x1 * matrix[1] + src->y1 * matrix[3] + matrix[5];
- dst->x0 = MIN (MIN (x00, x10), MIN (x01, x11));
- dst->y0 = MIN (MIN (y00, y10), MIN (y01, y11));
- dst->x1 = MAX (MAX (x00, x10), MAX (x01, x11));
- dst->y1 = MAX (MAX (y00, y10), MAX (y01, y11));
-}
-
-/**
- * art_drect_to_irect: Convert rectangle to integer rectangle.
- * @dst: Where to store resulting integer rectangle.
- * @src: The source rectangle.
- *
- * Find the smallest integer rectangle that encloses @src.
- **/
-void
-art_drect_to_irect (ArtIRect *dst, ArtDRect *src)
-{
- dst->x0 = floor (src->x0);
- dst->y0 = floor (src->y0);
- dst->x1 = ceil (src->x1);
- dst->y1 = ceil (src->y1);
-}
diff --git a/libart_lgpl/art_rect.h b/libart_lgpl/art_rect.h
deleted file mode 100644
index fb3ebb762b..0000000000
--- a/libart_lgpl/art_rect.h
+++ /dev/null
@@ -1,72 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_RECT_H__
-#define __ART_RECT_H__
-
-#include <glib.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-typedef struct _ArtDRect ArtDRect;
-typedef struct _ArtIRect ArtIRect;
-
-struct _ArtDRect {
- /*< public >*/
- gdouble x0, y0, x1, y1;
-};
-
-struct _ArtIRect {
- /*< public >*/
- gint x0, y0, x1, y1;
-};
-
-/* Make a copy of the rectangle. */
-void art_irect_copy (ArtIRect *dest, const ArtIRect *src);
-
-/* Return the intersection of the two rectangles */
-void art_irect_intersect (ArtIRect *dest,
- const ArtIRect *src1, const ArtIRect *src2);
-
-/* Return true if the rectangle is empty. */
-gint art_irect_empty (const ArtIRect *src);
-
-/* Make a copy of the rectangle. */
-void art_drect_copy (ArtDRect *dest, const ArtDRect *src);
-
-/* Find the smallest rectangle that includes both source rectangles. */
-void art_drect_union (ArtDRect *dest,
- const ArtDRect *src1, const ArtDRect *src2);
-
-/* Return true if the rectangle is empty. */
-gint art_drect_empty (const ArtDRect *src);
-
-void
-art_drect_affine_transform (ArtDRect *dst, const ArtDRect *src,
- const gdouble matrix[6]);
-
-void art_drect_to_irect (ArtIRect *dst, ArtDRect *src);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
diff --git a/libart_lgpl/art_rect_svp.c b/libart_lgpl/art_rect_svp.c
deleted file mode 100644
index 0c4d39643e..0000000000
--- a/libart_lgpl/art_rect_svp.c
+++ /dev/null
@@ -1,82 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#include "config.h"
-#include "art_rect_svp.h"
-
-#include "art_misc.h"
-#include "art_svp.h"
-#include "art_rect.h"
-
-#ifndef MAX
-#define MAX(a, b) (((a) > (b)) ? (a) : (b))
-#endif /* MAX */
-
-#ifndef MIN
-#define MIN(a, b) (((a) < (b)) ? (a) : (b))
-#endif /* MIN */
-
-/**
- * art_drect_svp: Find the bounding box of a sorted vector path.
- * @bbox: Where to store the bounding box.
- * @svp: The SVP.
- *
- * Finds the bounding box of the SVP.
- **/
-void
-art_drect_svp (ArtDRect *bbox, const ArtSVP *svp)
-{
- gint i;
-
- if (svp->n_segs == 0)
- {
- bbox->x0 = 0;
- bbox->y0 = 0;
- bbox->x1 = 0;
- bbox->y1 = 0;
- return;
- }
-
- art_drect_copy (bbox, &svp->segs[0].bbox);
-
- for (i = 1; i < svp->n_segs; i++)
- {
- bbox->x0 = MIN (bbox->x0, svp->segs[i].bbox.x0);
- bbox->y0 = MIN (bbox->y0, svp->segs[i].bbox.y0);
- bbox->x1 = MAX (bbox->x1, svp->segs[i].bbox.x1);
- bbox->y1 = MAX (bbox->y1, svp->segs[i].bbox.y1);
- }
-}
-
-/**
- * art_drect_svp_union:
- * @bbox: Initial boundin box and where to store the bounding box.
- * @svp: The SVP.
- *
- * Finds the bounding box of the SVP, computing its union with an
- * existing bbox.
- **/
-void
-art_drect_svp_union (ArtDRect *bbox, const ArtSVP *svp)
-{
- ArtDRect svp_bbox;
-
- art_drect_svp (&svp_bbox, svp);
- art_drect_union (bbox, bbox, &svp_bbox);
-}
diff --git a/libart_lgpl/art_rect_svp.h b/libart_lgpl/art_rect_svp.h
deleted file mode 100644
index 496826decf..0000000000
--- a/libart_lgpl/art_rect_svp.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_RECT_SVP_H__
-#define __ART_RECT_SVP_H__
-
-/* Find the bounding box of a sorted vector path. */
-
-#include <libart_lgpl/art_svp.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-void
-art_drect_svp (ArtDRect *bbox, const ArtSVP *svp);
-
-/* Compute the bounding box of the svp and union it in to the
- existing bounding box. */
-void
-art_drect_svp_union (ArtDRect *bbox, const ArtSVP *svp);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __ART_RECT_SVP_H__ */
diff --git a/libart_lgpl/art_rect_uta.c b/libart_lgpl/art_rect_uta.c
deleted file mode 100644
index 9a2f0c8ce9..0000000000
--- a/libart_lgpl/art_rect_uta.c
+++ /dev/null
@@ -1,133 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#include "config.h"
-#include "art_rect_uta.h"
-
-/* Functions to decompose a microtile array into a list of rectangles. */
-
-/**
- * art_rect_list_from_uta: Decompose uta into list of rectangles.
- * @uta: The source uta.
- * @max_width: The maximum width of the resulting rectangles.
- * @max_height: The maximum height of the resulting rectangles.
- * @p_nrects: Where to store the number of returned rectangles.
- *
- * Allocates a new list of rectangles, sets *@p_nrects to the number
- * in the list. This list should be freed with art_free().
- *
- * Each rectangle bounded in size by (@max_width, @max_height).
- * However, these bounds must be at least the size of one tile.
- *
- * This routine provides a precise implementation, i.e. the rectangles
- * cover exactly the same area as the uta. It is thus appropriate in
- * cases where the overhead per rectangle is small compared with the
- * cost of filling in extra pixels.
- *
- * Return value: An array containing the resulting rectangles.
- **/
-ArtIRect *
-art_rect_list_from_uta (ArtUta *uta, gint max_width, gint max_height,
- gint *p_nrects)
-{
- ArtIRect *rects;
- gint n_rects, n_rects_max;
- gint x, y;
- gint width, height;
- gint ix;
- gint left_ix;
- ArtUtaBbox *utiles;
- ArtUtaBbox bb;
- gint x0, y0, x1, y1;
- gint *glom;
- gint glom_rect;
-
- n_rects = 0;
- n_rects_max = 1;
- rects = art_new (ArtIRect, n_rects_max);
-
- width = uta->width;
- height = uta->height;
- utiles = uta->utiles;
-
- glom = art_new (int, width * height);
- for (ix = 0; ix < width * height; ix++)
- glom[ix] = -1;
-
- ix = 0;
- for (y = 0; y < height; y++)
- for (x = 0; x < width; x++)
- {
- bb = utiles[ix];
- if (bb)
- {
- x0 = ((uta->x0 + x) << ART_UTILE_SHIFT) + ART_UTA_BBOX_X0 (bb);
- y0 = ((uta->y0 + y) << ART_UTILE_SHIFT) + ART_UTA_BBOX_Y0 (bb);
- y1 = ((uta->y0 + y) << ART_UTILE_SHIFT) + ART_UTA_BBOX_Y1 (bb);
-
- left_ix = ix;
- /* now try to extend to the right */
- while (x != width - 1 &&
- ART_UTA_BBOX_X1 (bb) == ART_UTILE_SIZE &&
- (((bb & 0xffffff) ^ utiles[ix + 1]) & 0xffff00ff) == 0 &&
- (((uta->x0 + x + 1) << ART_UTILE_SHIFT) +
- ART_UTA_BBOX_X1 (utiles[ix + 1]) -
- x0) <= max_width)
- {
- bb = utiles[ix + 1];
- ix++;
- x++;
- }
- x1 = ((uta->x0 + x) << ART_UTILE_SHIFT) + ART_UTA_BBOX_X1 (bb);
-
- /* if rectangle nonempty */
- if ((x1 ^ x0) | (y1 ^ y0))
- {
- /* try to glom onto an existing rectangle */
- glom_rect = glom[left_ix];
- if (glom_rect != -1 &&
- x0 == rects[glom_rect].x0 &&
- x1 == rects[glom_rect].x1 &&
- y0 == rects[glom_rect].y1 &&
- y1 - rects[glom_rect].y0 <= max_height)
- {
- rects[glom_rect].y1 = y1;
- }
- else
- {
- if (n_rects == n_rects_max)
- art_expand (rects, ArtIRect, n_rects_max);
- rects[n_rects].x0 = x0;
- rects[n_rects].y0 = y0;
- rects[n_rects].x1 = x1;
- rects[n_rects].y1 = y1;
- glom_rect = n_rects;
- n_rects++;
- }
- if (y != height - 1)
- glom[left_ix + width] = glom_rect;
- }
- }
- ix++;
- }
-
- art_free (glom);
- *p_nrects = n_rects;
- return rects;
-}
diff --git a/libart_lgpl/art_rect_uta.h b/libart_lgpl/art_rect_uta.h
deleted file mode 100644
index 7b07d89ad9..0000000000
--- a/libart_lgpl/art_rect_uta.h
+++ /dev/null
@@ -1,38 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_RECT_UTA_H__
-#define __ART_RECT_UTA_H__
-
-#include <libart_lgpl/art_rect.h>
-#include <libart_lgpl/art_uta.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-ArtIRect *
-art_rect_list_from_uta (ArtUta *uta, gint max_width, gint max_height,
- gint *p_nrects);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __ART_RECT_UTA_H__ */
diff --git a/libart_lgpl/art_render.c b/libart_lgpl/art_render.c
deleted file mode 100644
index 6c71e4a260..0000000000
--- a/libart_lgpl/art_render.c
+++ /dev/null
@@ -1,735 +0,0 @@
-/*
- * art_render.c: Modular rendering architecture.
- *
- * Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 2000 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#include "config.h"
-#include "art_render.h"
-
-#include "art_rgb.h"
-
-typedef struct _ArtRenderPriv ArtRenderPriv;
-
-struct _ArtRenderPriv {
- ArtRender super;
-
- ArtImageSource *image_source;
-
- gint n_mask_source;
- ArtMaskSource **mask_source;
-
- gint n_callbacks;
- ArtRenderCallback **callbacks;
-};
-
-static void
-art_render_nop_done (ArtRenderCallback *self, ArtRender *render)
-{
-}
-
-static void
-art_render_clear_render_rgb8 (ArtRenderCallback *self, ArtRender *render,
- art_u8 *dest, gint y)
-{
- gint width = render->x1 - render->x0;
- art_u8 r, g, b;
- ArtPixMaxDepth color_max;
-
- color_max = render->clear_color[0];
- r = ART_PIX_8_FROM_MAX (color_max);
- color_max = render->clear_color[1];
- g = ART_PIX_8_FROM_MAX (color_max);
- color_max = render->clear_color[2];
- b = ART_PIX_8_FROM_MAX (color_max);
-
- art_rgb_fill_run (dest, r, g, b, width);
-}
-
-static void
-art_render_clear_render_8 (ArtRenderCallback *self, ArtRender *render,
- art_u8 *dest, gint y)
-{
- gint width = render->x1 - render->x0;
- gint i, j;
- gint n_ch = render->n_chan + (render->alpha_type != ART_ALPHA_NONE);
- gint ix;
- art_u8 color[ART_MAX_CHAN + 1];
-
- for (j = 0; j < n_ch; j++)
- {
- ArtPixMaxDepth color_max = render->clear_color[j];
- color[j] = ART_PIX_8_FROM_MAX (color_max);
- }
-
- ix = 0;
- for (i = 0; i < width; i++)
- for (j = 0; j < n_ch; j++)
- dest[ix++] = color[j];
-}
-
-const ArtRenderCallback art_render_clear_rgb8_obj =
-{
- art_render_clear_render_rgb8,
- art_render_nop_done
-};
-
-const ArtRenderCallback art_render_clear_8_obj =
-{
- art_render_clear_render_8,
- art_render_nop_done
-};
-
-#if ART_MAX_DEPTH >= 16
-
-static void
-art_render_clear_render_16 (ArtRenderCallback *self, ArtRender *render,
- art_u8 *dest, gint y)
-{
- gint width = render->x1 - render->x0;
- gint i, j;
- gint n_ch = render->n_chan + (render->alpha_type != ART_ALPHA_NONE);
- gint ix;
- art_u16 *dest_16 = (art_u16 *)dest;
- art_u8 color[ART_MAX_CHAN + 1];
-
- for (j = 0; j < n_ch; j++)
- {
- gint color_16 = render->clear_color[j];
- color[j] = color_16;
- }
-
- ix = 0;
- for (i = 0; i < width; i++)
- for (j = 0; j < n_ch; j++)
- dest_16[ix++] = color[j];
-}
-
-const ArtRenderCallback art_render_clear_16_obj =
-{
- art_render_clear_render_16,
- art_render_nop_done
-};
-
-#endif /* ART_MAX_DEPTH >= 16 */
-
-/* This is the most general form of the function. It is slow but
- (hopefully) correct. Actually, I'm still worried about roundoff
- errors in the premul case - it seems to me that an off-by-one could
- lead to overflow. */
-static void
-art_render_composite (ArtRenderCallback *self, ArtRender *render,
- art_u8 *dest, gint y)
-{
- ArtRenderMaskRun *run = render->run;
- art_u32 depth = render->depth;
- gint n_run = render->n_run;
- gint x0 = render->x0;
- gint x;
- gint run_x0, run_x1;
- art_u8 *alpha_buf = render->alpha_buf;
- art_u8 *image_buf = render->image_buf;
- gint i, j;
- art_u32 tmp;
- art_u32 run_alpha;
- art_u32 alpha;
- gint image_ix;
- art_u16 src[ART_MAX_CHAN + 1];
- art_u16 dst[ART_MAX_CHAN + 1];
- gint n_chan = render->n_chan;
- ArtAlphaType alpha_type = render->alpha_type;
- gint n_ch = n_chan + (alpha_type != ART_ALPHA_NONE);
- gint dst_pixstride = n_ch * (depth >> 3);
- gint buf_depth = render->buf_depth;
- ArtAlphaType buf_alpha = render->buf_alpha;
- gint buf_n_ch = n_chan + (buf_alpha != ART_ALPHA_NONE);
- gint buf_pixstride = buf_n_ch * (buf_depth >> 3);
- art_u8 *bufptr;
- art_u32 src_alpha;
- art_u32 src_mul;
- art_u8 *dstptr;
- art_u32 dst_alpha;
- art_u32 dst_mul;
-
- image_ix = 0;
- for (i = 0; i < n_run - 1; i++)
- {
- run_x0 = run[i].x;
- run_x1 = run[i + 1].x;
- tmp = run[i].alpha;
- if (tmp < 0x8100)
- continue;
-
- run_alpha = (tmp + (tmp >> 8) + (tmp >> 16) - 0x8000) >> 8;
- bufptr = image_buf + (run_x0 - x0) * buf_pixstride;
- dstptr = dest + (run_x0 - x0) * dst_pixstride;
- for (x = run_x0; x < run_x1; x++)
- {
- if (alpha_buf)
- {
- if (depth == 8)
- {
- tmp = run_alpha * alpha_buf[x - x0] + 0x80;
- /* range 0x80 .. 0xff0080 */
- alpha = (tmp + (tmp >> 8) + (tmp >> 16)) >> 8;
- }
- else /* (depth == 16) */
- {
- tmp = ((art_u16 *)alpha_buf)[x - x0];
- tmp = (run_alpha * tmp + 0x8000) >> 8;
- /* range 0x80 .. 0xffff80 */
- alpha = (tmp + (tmp >> 16)) >> 8;
- }
- }
- else
- alpha = run_alpha;
- /* alpha is run_alpha * alpha_buf[x], range 0 .. 0x10000 */
-
- /* convert (src pixel * alpha) to premul alpha form,
- store in src as 0..0xffff range */
- if (buf_alpha == ART_ALPHA_NONE)
- {
- src_alpha = alpha;
- src_mul = src_alpha;
- }
- else
- {
- if (buf_depth == 8)
- {
- tmp = alpha * bufptr[n_chan] + 0x80;
- /* range 0x80 .. 0xff0080 */
- src_alpha = (tmp + (tmp >> 8) + (tmp >> 16)) >> 8;
- }
- else /* (depth == 16) */
- {
- tmp = ((art_u16 *)bufptr)[n_chan];
- tmp = (alpha * tmp + 0x8000) >> 8;
- /* range 0x80 .. 0xffff80 */
- src_alpha = (tmp + (tmp >> 16)) >> 8;
- }
- if (buf_alpha == ART_ALPHA_SEPARATE)
- src_mul = src_alpha;
- else /* buf_alpha == (ART_ALPHA_PREMUL) */
- src_mul = alpha;
- }
- /* src_alpha is the (alpha of the source pixel * alpha),
- range 0..0x10000 */
-
- if (buf_depth == 8)
- {
- src_mul *= 0x101;
- for (j = 0; j < n_chan; j++)
- src[j] = (bufptr[j] * src_mul + 0x8000) >> 16;
- }
- else if (buf_depth == 16)
- {
- for (j = 0; j < n_chan; j++)
- src[j] = (((art_u16 *)bufptr)[j] * src_mul + 0x8000) >> 16;
- }
- bufptr += buf_pixstride;
-
- /* src[0..n_chan - 1] (range 0..0xffff) and src_alpha (range
- 0..0x10000) now contain the source pixel with
- premultiplied alpha */
-
- /* convert dst pixel to premul alpha form,
- store in dst as 0..0xffff range */
- if (alpha_type == ART_ALPHA_NONE)
- {
- dst_alpha = 0x10000;
- dst_mul = dst_alpha;
- }
- else
- {
- if (depth == 8)
- {
- tmp = dstptr[n_chan];
- /* range 0..0xff */
- dst_alpha = (tmp << 8) + tmp + (tmp >> 7);
- }
- else /* (depth == 16) */
- {
- tmp = ((art_u16 *)dstptr)[n_chan];
- dst_alpha = (tmp + (tmp >> 15));
- }
- if (alpha_type == ART_ALPHA_SEPARATE)
- dst_mul = dst_alpha;
- else /* (alpha_type == ART_ALPHA_PREMUL) */
- dst_mul = 0x10000;
- }
- /* dst_alpha is the alpha of the dest pixel,
- range 0..0x10000 */
-
- if (depth == 8)
- {
- dst_mul *= 0x101;
- for (j = 0; j < n_chan; j++)
- dst[j] = (dstptr[j] * dst_mul + 0x8000) >> 16;
- }
- else if (buf_depth == 16)
- {
- for (j = 0; j < n_chan; j++)
- dst[j] = (((art_u16 *)dstptr)[j] * dst_mul + 0x8000) >> 16;
- }
-
- /* do the compositing, dst = (src over dst) */
- for (j = 0; j < n_chan; j++)
- {
- art_u32 srcv, dstv;
- art_u32 tmp;
-
- srcv = src[j];
- dstv = dst[j];
- tmp = ((dstv * (0x10000 - src_alpha) + 0x8000) >> 16) + srcv;
- tmp -= tmp >> 16;
- dst[j] = tmp;
- }
-
- if (alpha_type == ART_ALPHA_NONE)
- {
- if (depth == 8)
- dst_mul = 0xff;
- else /* (depth == 16) */
- dst_mul = 0xffff;
- }
- else
- {
- if (src_alpha >= 0x10000)
- dst_alpha = 0x10000;
- else
- dst_alpha += ((((0x10000 - dst_alpha) * src_alpha) >> 8) + 0x80) >> 8;
- if (alpha_type == ART_ALPHA_PREMUL || dst_alpha == 0)
- {
- if (depth == 8)
- dst_mul = 0xff;
- else /* (depth == 16) */
- dst_mul = 0xffff;
- }
- else /* (ALPHA_TYPE == ART_ALPHA_SEPARATE && dst_alpha != 0) */
- {
- if (depth == 8)
- dst_mul = 0xff0000 / dst_alpha;
- else /* (depth == 16) */
- dst_mul = 0xffff0000 / dst_alpha;
- }
- }
- if (depth == 8)
- {
- for (j = 0; j < n_chan; j++)
- dstptr[j] = (dst[j] * dst_mul + 0x8000) >> 16;
- if (alpha_type != ART_ALPHA_NONE)
- dstptr[n_chan] = (dst_alpha * 0xff + 0x8000) >> 16;
- }
- else if (depth == 16)
- {
- for (j = 0; j < n_chan; j++)
- ((art_u16 *)dstptr)[j] = (dst[j] * dst_mul + 0x8000) >> 16;
- if (alpha_type != ART_ALPHA_NONE)
- ((art_u16 *)dstptr)[n_chan] = (dst_alpha * 0xffff + 0x8000) >> 16;
- }
- dstptr += dst_pixstride;
- }
- }
-}
-
-const ArtRenderCallback art_render_composite_obj =
-{
- art_render_composite,
- art_render_nop_done
-};
-
-static void
-art_render_composite_8 (ArtRenderCallback *self, ArtRender *render,
- art_u8 *dest, gint y)
-{
- ArtRenderMaskRun *run = render->run;
- gint n_run = render->n_run;
- gint x0 = render->x0;
- gint x;
- gint run_x0, run_x1;
- art_u8 *alpha_buf = render->alpha_buf;
- art_u8 *image_buf = render->image_buf;
- gint i, j;
- art_u32 tmp;
- art_u32 run_alpha;
- art_u32 alpha;
- gint image_ix;
- gint n_chan = render->n_chan;
- ArtAlphaType alpha_type = render->alpha_type;
- gint n_ch = n_chan + (alpha_type != ART_ALPHA_NONE);
- gint dst_pixstride = n_ch;
- ArtAlphaType buf_alpha = render->buf_alpha;
- gint buf_n_ch = n_chan + (buf_alpha != ART_ALPHA_NONE);
- gint buf_pixstride = buf_n_ch;
- art_u8 *bufptr;
- art_u32 src_alpha;
- art_u32 src_mul;
- art_u8 *dstptr;
- art_u32 dst_alpha;
- art_u32 dst_mul, dst_save_mul;
-
- image_ix = 0;
- for (i = 0; i < n_run - 1; i++)
- {
- run_x0 = run[i].x;
- run_x1 = run[i + 1].x;
- tmp = run[i].alpha;
- if (tmp < 0x10000)
- continue;
-
- run_alpha = (tmp + (tmp >> 8) + (tmp >> 16) - 0x8000) >> 8;
- bufptr = image_buf + (run_x0 - x0) * buf_pixstride;
- dstptr = dest + (run_x0 - x0) * dst_pixstride;
- for (x = run_x0; x < run_x1; x++)
- {
- if (alpha_buf)
- {
- tmp = run_alpha * alpha_buf[x - x0] + 0x80;
- /* range 0x80 .. 0xff0080 */
- alpha = (tmp + (tmp >> 8) + (tmp >> 16)) >> 8;
- }
- else
- alpha = run_alpha;
- /* alpha is run_alpha * alpha_buf[x], range 0 .. 0x10000 */
-
- /* convert (src pixel * alpha) to premul alpha form,
- store in src as 0..0xffff range */
- if (buf_alpha == ART_ALPHA_NONE)
- {
- src_alpha = alpha;
- src_mul = src_alpha;
- }
- else
- {
- tmp = alpha * bufptr[n_chan] + 0x80;
- /* range 0x80 .. 0xff0080 */
- src_alpha = (tmp + (tmp >> 8) + (tmp >> 16)) >> 8;
-
- if (buf_alpha == ART_ALPHA_SEPARATE)
- src_mul = src_alpha;
- else /* buf_alpha == (ART_ALPHA_PREMUL) */
- src_mul = alpha;
- }
- /* src_alpha is the (alpha of the source pixel * alpha),
- range 0..0x10000 */
-
- src_mul *= 0x101;
-
- if (alpha_type == ART_ALPHA_NONE)
- {
- dst_alpha = 0x10000;
- dst_mul = dst_alpha;
- }
- else
- {
- tmp = dstptr[n_chan];
- /* range 0..0xff */
- dst_alpha = (tmp << 8) + tmp + (tmp >> 7);
- if (alpha_type == ART_ALPHA_SEPARATE)
- dst_mul = dst_alpha;
- else /* (alpha_type == ART_ALPHA_PREMUL) */
- dst_mul = 0x10000;
- }
- /* dst_alpha is the alpha of the dest pixel,
- range 0..0x10000 */
-
- dst_mul *= 0x101;
-
- if (alpha_type == ART_ALPHA_NONE)
- {
- dst_save_mul = 0xff;
- }
- else
- {
- if (src_alpha >= 0x10000)
- dst_alpha = 0x10000;
- else
- dst_alpha += ((((0x10000 - dst_alpha) * src_alpha) >> 8) + 0x80) >> 8;
- if (alpha_type == ART_ALPHA_PREMUL || dst_alpha == 0)
- {
- dst_save_mul = 0xff;
- }
- else /* (ALPHA_TYPE == ART_ALPHA_SEPARATE && dst_alpha != 0) */
- {
- dst_save_mul = 0xff0000 / dst_alpha;
- }
- }
-
- for (j = 0; j < n_chan; j++)
- {
- art_u32 src, dst;
- art_u32 tmp;
-
- src = (bufptr[j] * src_mul + 0x8000) >> 16;
- dst = (dstptr[j] * dst_mul + 0x8000) >> 16;
- tmp = ((dst * (0x10000 - src_alpha) + 0x8000) >> 16) + src;
- tmp -= tmp >> 16;
- dstptr[j] = (tmp * dst_save_mul + 0x8000) >> 16;
- }
- if (alpha_type != ART_ALPHA_NONE)
- dstptr[n_chan] = (dst_alpha * 0xff + 0x8000) >> 16;
-
- bufptr += buf_pixstride;
- dstptr += dst_pixstride;
- }
- }
-}
-
-const ArtRenderCallback art_render_composite_8_obj =
-{
- art_render_composite_8,
- art_render_nop_done
-};
-
-/* Assumes:
- * alpha_buf is NULL
- * buf_alpha = ART_ALPHA_NONE (source)
- * alpha_type = ART_ALPHA_SEPARATE (dest)
- * n_chan = 3;
- */
-static void
-art_render_composite_8_opt1 (ArtRenderCallback *self, ArtRender *render,
- art_u8 *dest, gint y)
-{
- ArtRenderMaskRun *run = render->run;
- gint n_run = render->n_run;
- gint x0 = render->x0;
- gint x;
- gint run_x0, run_x1;
- art_u8 *image_buf = render->image_buf;
- gint i, j;
- art_u32 tmp;
- art_u32 run_alpha;
- gint image_ix;
- art_u8 *bufptr;
- art_u32 src_mul;
- art_u8 *dstptr;
- art_u32 dst_alpha;
- art_u32 dst_mul, dst_save_mul;
-
- image_ix = 0;
- for (i = 0; i < n_run - 1; i++)
- {
- run_x0 = run[i].x;
- run_x1 = run[i + 1].x;
- tmp = run[i].alpha;
- if (tmp < 0x10000)
- continue;
-
- run_alpha = (tmp + (tmp >> 8) + (tmp >> 16) - 0x8000) >> 8;
- bufptr = image_buf + (run_x0 - x0) * 3;
- dstptr = dest + (run_x0 - x0) * 4;
- if (run_alpha == 0x10000)
- {
- for (x = run_x0; x < run_x1; x++)
- {
- *dstptr++ = *bufptr++;
- *dstptr++ = *bufptr++;
- *dstptr++ = *bufptr++;
- *dstptr++ = 0xff;
- }
- }
- else
- {
- for (x = run_x0; x < run_x1; x++)
- {
- src_mul = run_alpha * 0x101;
-
- tmp = dstptr[3];
- /* range 0..0xff */
- dst_alpha = (tmp << 8) + tmp + (tmp >> 7);
- dst_mul = dst_alpha;
- /* dst_alpha is the alpha of the dest pixel,
- range 0..0x10000 */
-
- dst_mul *= 0x101;
-
- dst_alpha += ((((0x10000 - dst_alpha) * run_alpha) >> 8) + 0x80) >> 8;
- if (dst_alpha == 0)
- dst_save_mul = 0xff;
- else /* (dst_alpha != 0) */
- dst_save_mul = 0xff0000 / dst_alpha;
-
- for (j = 0; j < 3; j++)
- {
- art_u32 src, dst;
- art_u32 tmp;
-
- src = (bufptr[j] * src_mul + 0x8000) >> 16;
- dst = (dstptr[j] * dst_mul + 0x8000) >> 16;
- tmp = ((dst * (0x10000 - run_alpha) + 0x8000) >> 16) + src;
- tmp -= tmp >> 16;
- dstptr[j] = (tmp * dst_save_mul + 0x8000) >> 16;
- }
- dstptr[3] = (dst_alpha * 0xff + 0x8000) >> 16;
-
- bufptr += 3;
- dstptr += 4;
- }
- }
- }
-}
-
-const ArtRenderCallback art_render_composite_8_opt1_obj =
-{
- art_render_composite_8_opt1,
- art_render_nop_done
-};
-
-/* Assumes:
- * alpha_buf is NULL
- * buf_alpha = ART_ALPHA_PREMUL (source)
- * alpha_type = ART_ALPHA_SEPARATE (dest)
- * n_chan = 3;
- */
-static void
-art_render_composite_8_opt2 (ArtRenderCallback *self, ArtRender *render,
- art_u8 *dest, gint y)
-{
- ArtRenderMaskRun *run = render->run;
- gint n_run = render->n_run;
- gint x0 = render->x0;
- gint x;
- gint run_x0, run_x1;
- art_u8 *image_buf = render->image_buf;
- gint i, j;
- art_u32 tmp;
- art_u32 run_alpha;
- gint image_ix;
- art_u8 *bufptr;
- art_u32 src_alpha;
- art_u32 src_mul;
- art_u8 *dstptr;
- art_u32 dst_alpha;
- art_u32 dst_mul, dst_save_mul;
-
- image_ix = 0;
- for (i = 0; i < n_run - 1; i++)
- {
- run_x0 = run[i].x;
- run_x1 = run[i + 1].x;
- tmp = run[i].alpha;
- if (tmp < 0x10000)
- continue;
-
- run_alpha = (tmp + (tmp >> 8) + (tmp >> 16) - 0x8000) >> 8;
- bufptr = image_buf + (run_x0 - x0) * 4;
- dstptr = dest + (run_x0 - x0) * 4;
- if (run_alpha == 0x10000)
- {
- for (x = run_x0; x < run_x1; x++)
- {
- src_alpha = (bufptr[3] << 8) + bufptr[3] + (bufptr[3] >> 7);
- /* src_alpha is the (alpha of the source pixel),
- range 0..0x10000 */
-
- dst_alpha = (dstptr[3] << 8) + dstptr[3] + (dstptr[3] >> 7);
- /* dst_alpha is the alpha of the dest pixel,
- range 0..0x10000 */
-
- dst_mul = dst_alpha*0x101;
-
- if (src_alpha >= 0x10000)
- dst_alpha = 0x10000;
- else
- dst_alpha += ((((0x10000 - dst_alpha) * src_alpha) >> 8) + 0x80) >> 8;
-
- if (dst_alpha == 0)
- dst_save_mul = 0xff;
- else /* dst_alpha != 0) */
- dst_save_mul = 0xff0000 / dst_alpha;
-
- for (j = 0; j < 3; j++)
- {
- art_u32 src, dst;
- art_u32 tmp;
-
- src = (bufptr[j] << 8) | bufptr[j];
- dst = (dstptr[j] * dst_mul + 0x8000) >> 16;
- tmp = ((dst * (0x10000 - src_alpha) + 0x8000) >> 16) + src;
- tmp -= tmp >> 16;
- dstptr[j] = (tmp * dst_save_mul + 0x8000) >> 16;
- }
- dstptr[3] = (dst_alpha * 0xff + 0x8000) >> 16;
-
- bufptr += 4;
- dstptr += 4;
- }
- }
- else
- {
- for (x = run_x0; x < run_x1; x++)
- {
- tmp = run_alpha * bufptr[3] + 0x80;
- /* range 0x80 .. 0xff0080 */
- src_alpha = (tmp + (tmp >> 8) + (tmp >> 16)) >> 8;
- /* src_alpha is the (alpha of the source pixel * alpha),
- range 0..0x10000 */
-
- src_mul = run_alpha * 0x101;
-
- tmp = dstptr[3];
- /* range 0..0xff */
- dst_alpha = (tmp << 8) + tmp + (tmp >> 7);
- dst_mul = dst_alpha;
- /* dst_alpha is the alpha of the dest pixel,
- range 0..0x10000 */
-
- dst_mul *= 0x101;
-
- if (src_alpha >= 0x10000)
- dst_alpha = 0x10000;
- else
- dst_alpha += ((((0x10000 - dst_alpha) * src_alpha) >> 8) + 0x80) >> 8;
-
- if (dst_alpha == 0)
- {
- dst_save_mul = 0xff;
- }
- else /* dst_alpha != 0) */
- {
- dst_save_mul = 0xff0000 / dst_alpha;
- }
-
- for (j = 0; j < 3; j++)
- {
- art_u32 src, dst;
- art_u32 tmp;
-
- src = (bufptr[j] * src_mul + 0x8000) >> 16;
- dst = (dstptr[j] * dst_mul + 0x8000) >> 16;
- tmp = ((dst * (0x10000 - src_alpha) + 0x8000) >> 16) + src;
- tmp -= tmp >> 16;
- dstptr[j] = (tmp * dst_save_mul + 0x8000) >> 16;
- }
- dstptr[3] = (dst_alpha * 0xff + 0x8000) >> 16;
-
- bufptr += 4;
- dstptr += 4;
- }
- }
- }
-}
-
-const ArtRenderCallback art_render_composite_8_opt2_obj =
-{
- art_render_composite_8_opt2,
- art_render_nop_done
-};
-
diff --git a/libart_lgpl/art_render.h b/libart_lgpl/art_render.h
deleted file mode 100644
index 0675722add..0000000000
--- a/libart_lgpl/art_render.h
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
- * art_render.h: Modular rendering architecture.
- *
- * Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 2000 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_RENDER_H__
-#define __ART_RENDER_H__
-
-#include <libart_lgpl/art_alphagamma.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-/* Render object */
-
-#ifndef ART_MAX_DEPTH
-#define ART_MAX_DEPTH 16
-#endif
-
-#if ART_MAX_DEPTH == 16
-typedef art_u16 ArtPixMaxDepth;
-#define ART_PIX_MAX_FROM_8(x) ((x) | ((x) << 8))
-#define ART_PIX_8_FROM_MAX(x) (((x) + 0x80 - (((x) + 0x80) >> 8)) >> 8)
-#else
-#if ART_MAX_DEPTH == 8
-typedef art_u8 ArtPixMaxDepth;
-#define ART_PIX_MAX_FROM_8(x) (x)
-#define ART_PIX_8_FROM_MAX(x) (x)
-#else
-#error ART_MAX_DEPTH must be either 8 or 16
-#endif
-#endif
-
-#define ART_MAX_CHAN 16
-
-typedef struct _ArtRender ArtRender;
-typedef struct _ArtRenderCallback ArtRenderCallback;
-typedef struct _ArtRenderMaskRun ArtRenderMaskRun;
-typedef struct _ArtImageSource ArtImageSource;
-typedef struct _ArtMaskSource ArtMaskSource;
-
-typedef enum {
- ART_ALPHA_NONE = 0,
- ART_ALPHA_SEPARATE = 1,
- ART_ALPHA_PREMUL = 2
-} ArtAlphaType;
-
-typedef enum {
- ART_COMPOSITE_NORMAL,
- ART_COMPOSITE_MULTIPLY,
- /* todo: more */
- ART_COMPOSITE_CUSTOM
-} ArtCompositingMode;
-
-typedef enum {
- ART_IMAGE_SOURCE_CAN_CLEAR = 1,
- ART_IMAGE_SOURCE_CAN_COMPOSITE = 2
-} ArtImageSourceFlags;
-
-struct _ArtRenderMaskRun {
- gint x;
- gint alpha;
-};
-
-struct _ArtRenderCallback {
- void (*render) (ArtRenderCallback *self, ArtRender *render,
- art_u8 *dest, gint y);
- void (*done) (ArtRenderCallback *self, ArtRender *render);
-};
-
-struct _ArtImageSource {
- ArtRenderCallback super;
- void (*negotiate) (ArtImageSource *self, ArtRender *render,
- ArtImageSourceFlags *p_flags,
- gint *p_buf_depth, ArtAlphaType *p_alpha_type);
-};
-
-struct _ArtMaskSource {
- ArtRenderCallback super;
- gint (*can_drive) (ArtMaskSource *self, ArtRender *render);
- /* For each mask source, ::prepare() is invoked if it is not
- a driver, or ::invoke_driver () if it is. */
- void (*invoke_driver) (ArtMaskSource *self, ArtRender *render);
- void (*prepare) (ArtMaskSource *self, ArtRender *render, art_boolean first);
-};
-
-struct _ArtRender {
- /* parameters of destination image */
- gint x0, y0;
- gint x1, y1;
- art_u8 *pixels;
- gint rowstride;
- gint n_chan;
- gint depth;
- ArtAlphaType alpha_type;
-
- art_boolean clear;
- ArtPixMaxDepth clear_color[ART_MAX_CHAN + 1];
- art_u32 opacity; /*[0..0x10000] */
-
- ArtCompositingMode compositing_mode;
-
- ArtAlphaGamma *alphagamma;
-
- art_u8 *alpha_buf;
-
- /* parameters of intermediate buffer */
- gint buf_depth;
- ArtAlphaType buf_alpha;
- art_u8 *image_buf;
-
- /* driving alpha scanline data */
- /* A "run" is a contiguous sequence of x values with the same alpha value. */
- gint n_run;
- ArtRenderMaskRun *run;
-
- /* A "span" is a contiguous sequence of x values with non-zero alpha. */
- gint n_span;
- gint *span_x;
-
- art_boolean need_span;
-};
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __ART_RENDER_H__ */
-
diff --git a/libart_lgpl/art_rgb.c b/libart_lgpl/art_rgb.c
deleted file mode 100644
index 34e6d237f9..0000000000
--- a/libart_lgpl/art_rgb.c
+++ /dev/null
@@ -1,175 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#include "config.h"
-#include "art_rgb.h"
-
-#include <string.h> /* for memset */
-
-/* Basic operators for manipulating 24-bit packed RGB buffers. */
-
-#define COLOR_RUN_COMPLEX
-
-#ifdef COLOR_RUN_SIMPLE
-/* This is really slow. Is there any way we might speed it up?
- Two ideas:
-
- First, maybe we should be working at 32-bit alignment. Then,
- this can be a simple loop over word stores.
-
- Second, we can keep working at 24-bit alignment, but have some
- intelligence about storing. For example, we can iterate over
- 4-pixel chunks (aligned at 4 pixels), with an inner loop
- something like:
-
- *buf++ = v1;
- *buf++ = v2;
- *buf++ = v3;
-
- One source of extra complexity is the need to make sure linebuf is
- aligned to a 32-bit boundary.
-
- This second alternative has some complexity to it, but is
- appealing because it really minimizes the memory bandwidth. */
-void
-art_rgb_fill_run (art_u8 *buf, art_u8 r, art_u8 g, art_u8 b, gint n)
-{
- gint i;
-
- if (r == g && g == b)
- {
- memset (buf, g, n + n + n);
- }
- else
- {
- for (i = 0; i < n; i++)
- {
- *buf++ = r;
- *buf++ = g;
- *buf++ = b;
- }
- }
-}
-#endif
-
-#ifdef COLOR_RUN_COMPLEX
-/* This implements the second of the two ideas above. The test results
- are _very_ encouraging - it seems the speed is within 10% of
- memset, which is quite good! */
-/**
- * art_rgb_fill_run: fill a buffer a solid RGB color.
- * @buf: Buffer to fill.
- * @r: Red, range 0..255.
- * @g: Green, range 0..255.
- * @b: Blue, range 0..255.
- * @n: Number of RGB triples to fill.
- *
- * Fills a buffer with @n copies of the (@r, @g, @b) triple. Thus,
- * locations @buf (inclusive) through @buf + 3 * @n (exclusive) are
- * written.
- *
- * The implementation of this routine is very highly optimized.
- **/
-void
-art_rgb_fill_run (art_u8 *buf, art_u8 r, art_u8 g, art_u8 b, gint n)
-{
- gint i;
- guint v1, v2, v3;
-
- if (r == g && g == b)
- {
- memset (buf, g, n + n + n);
- }
- else
- {
- if (n < 8)
- {
- for (i = 0; i < n; i++)
- {
- *buf++ = r;
- *buf++ = g;
- *buf++ = b;
- }
- } else {
- /* handle prefix up to byte alignment */
- /* I'm worried about this cast on sizeof(long) != sizeof(uchar *)
- architectures, but it _should_ work. */
- for (i = 0; ((unsigned long)buf) & 3; i++)
- {
- *buf++ = r;
- *buf++ = g;
- *buf++ = b;
- }
-#ifndef WORDS_BIGENDIAN
- v1 = r | (g << 8) | (b << 16) | (r << 24);
- v3 = (v1 << 8) | b;
- v2 = (v3 << 8) | g;
-#else
- v1 = (r << 24) | (g << 16) | (b << 8) | r;
- v2 = (v1 << 8) | g;
- v3 = (v2 << 8) | b;
-#endif
- for (; i < n - 3; i += 4)
- {
- ((art_u32 *)buf)[0] = v1;
- ((art_u32 *)buf)[1] = v2;
- ((art_u32 *)buf)[2] = v3;
- buf += 12;
- }
- /* handle postfix */
- for (; i < n; i++)
- {
- *buf++ = r;
- *buf++ = g;
- *buf++ = b;
- }
- }
- }
-}
-#endif
-
-/**
- * art_rgb_run_alpha: Render semitransparent color over RGB buffer.
- * @buf: Buffer for rendering.
- * @r: Red, range 0..255.
- * @g: Green, range 0..255.
- * @b: Blue, range 0..255.
- * @alpha: Alpha, range 0..256.
- * @n: Number of RGB triples to render.
- *
- * Renders a sequential run of solid (@r, @g, @b) color over @buf with
- * opacity @alpha.
- **/
-void
-art_rgb_run_alpha (art_u8 *buf, art_u8 r, art_u8 g, art_u8 b, gint alpha, gint n)
-{
- gint i;
- gint v;
-
- for (i = 0; i < n; i++)
- {
- v = *buf;
- *buf++ = v + (((r - v) * alpha + 0x80) >> 8);
- v = *buf;
- *buf++ = v + (((g - v) * alpha + 0x80) >> 8);
- v = *buf;
- *buf++ = v + (((b - v) * alpha + 0x80) >> 8);
- }
-}
-
diff --git a/libart_lgpl/art_rgb.h b/libart_lgpl/art_rgb.h
deleted file mode 100644
index d7581b4402..0000000000
--- a/libart_lgpl/art_rgb.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_RGB_H__
-#define __ART_RGB_H__
-
-#include <libart_lgpl/art_misc.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-void
-art_rgb_fill_run (art_u8 *buf, art_u8 r, art_u8 g, art_u8 b, gint n);
-
-void
-art_rgb_run_alpha (art_u8 *buf, art_u8 r, art_u8 g, art_u8 b, gint alpha,
- gint n);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
diff --git a/libart_lgpl/art_rgb_affine.c b/libart_lgpl/art_rgb_affine.c
deleted file mode 100644
index 61cdb1e9a8..0000000000
--- a/libart_lgpl/art_rgb_affine.c
+++ /dev/null
@@ -1,106 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#include "config.h"
-#include "art_rgb_affine.h"
-
-#include <math.h>
-#include "art_misc.h"
-#include "art_point.h"
-#include "art_affine.h"
-#include "art_rgb_affine_private.h"
-
-/* This module handles compositing of affine-transformed rgb images
- over rgb pixel buffers. */
-
-/**
- * art_rgb_affine: Affine transform source RGB image and composite.
- * @dst: Destination image RGB buffer.
- * @x0: Left coordinate of destination rectangle.
- * @y0: Top coordinate of destination rectangle.
- * @x1: Right coordinate of destination rectangle.
- * @y1: Bottom coordinate of destination rectangle.
- * @dst_rowstride: Rowstride of @dst buffer.
- * @src: Source image RGB buffer.
- * @src_width: Width of source image.
- * @src_height: Height of source image.
- * @src_rowstride: Rowstride of @src buffer.
- * @affine: Affine transform.
- * @level: Filter level.
- * @alphagamma: #ArtAlphaGamma for gamma-correcting the compositing.
- *
- * Affine transform the source image stored in @src, compositing over
- * the area of destination image @dst specified by the rectangle
- * (@x0, @y0) - (@x1, @y1). As usual in libart, the left and top edges
- * of this rectangle are included, and the right and bottom edges are
- * excluded.
- *
- * The @alphagamma parameter specifies that the alpha compositing be done
- * in a gamma-corrected color space. Since the source image is opaque RGB,
- * this argument only affects the edges. In the current implementation,
- * it is ignored.
- *
- * The @level parameter specifies the speed/quality tradeoff of the
- * image interpolation. Currently, only ART_FILTER_NEAREST is
- * implemented.
- **/
-void
-art_rgb_affine (art_u8 *dst, gint x0, gint y0, gint x1, gint y1, gint dst_rowstride,
- const art_u8 *src,
- gint src_width, gint src_height, gint src_rowstride,
- const gdouble affine[6],
- ArtFilterLevel level,
- ArtAlphaGamma *alphagamma)
-{
- /* Note: this is a slow implementation, and is missing all filter
- levels other than NEAREST. It is here for clarity of presentation
- and to establish the interface. */
- gint x, y;
- gdouble inv[6];
- art_u8 *dst_p, *dst_linestart;
- const art_u8 *src_p;
- ArtPoint pt, src_pt;
- gint src_x, src_y;
- gint run_x0, run_x1;
-
- dst_linestart = dst;
- art_affine_invert (inv, affine);
- for (y = y0; y < y1; y++)
- {
- pt.y = y + 0.5;
- run_x0 = x0;
- run_x1 = x1;
- art_rgb_affine_run (&run_x0, &run_x1, y, src_width, src_height,
- inv);
- dst_p = dst_linestart + (run_x0 - x0) * 3;
- for (x = run_x0; x < run_x1; x++)
- {
- pt.x = x + 0.5;
- art_affine_point (&src_pt, &pt, inv);
- src_x = floor (src_pt.x);
- src_y = floor (src_pt.y);
- src_p = src + (src_y * src_rowstride) + src_x * 3;
- dst_p[0] = src_p[0];
- dst_p[1] = src_p[1];
- dst_p[2] = src_p[2];
- dst_p += 3;
- }
- dst_linestart += dst_rowstride;
- }
-}
diff --git a/libart_lgpl/art_rgb_affine.h b/libart_lgpl/art_rgb_affine.h
deleted file mode 100644
index 9f1414753a..0000000000
--- a/libart_lgpl/art_rgb_affine.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_RGB_AFFINE_H__
-#define __ART_RGB_AFFINE_H__
-
-/* This module handles compositing of affine-transformed rgb images
- over rgb pixel buffers. */
-
-#include <libart_lgpl/art_filterlevel.h>
-#include <libart_lgpl/art_alphagamma.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-void
-art_rgb_affine (art_u8 *dst, gint x0, gint y0, gint x1, gint y1, gint dst_rowstride,
- const art_u8 *src,
- gint src_width, gint src_height, gint src_rowstride,
- const gdouble affine[6],
- ArtFilterLevel level,
- ArtAlphaGamma *alphagamma);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
diff --git a/libart_lgpl/art_rgb_affine_private.c b/libart_lgpl/art_rgb_affine_private.c
deleted file mode 100644
index 9f2d12026f..0000000000
--- a/libart_lgpl/art_rgb_affine_private.c
+++ /dev/null
@@ -1,127 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#include "config.h"
-#include "art_rgb_affine_private.h"
-
-#include <math.h>
-#include "art_misc.h"
-#include "art_point.h"
-#include "art_affine.h"
-
-/* Private functions for the rgb affine image compositors - primarily,
- the determination of runs, eliminating the need for source image
- bbox calculation in the inner loop. */
-
-/* Determine a "run", such that the inverse affine of all pixels from
- (x0, y) inclusive to (x1, y) exclusive fit within the bounds
- of the source image.
-
- Initial values of x0, x1, and result values stored in first two
- pointer arguments.
-*/
-
-#define EPSILON 1e-6
-
-void
-art_rgb_affine_run (gint *p_x0, gint *p_x1, gint y,
- gint src_width, gint src_height,
- const gdouble affine[6])
-{
- gint x0, x1;
- gdouble z;
- gdouble x_intercept;
- gint xi;
-
- x0 = *p_x0;
- x1 = *p_x1;
-
- /* do left and right edges */
- if (affine[0] > EPSILON)
- {
- z = affine[2] * (y + 0.5) + affine[4];
- x_intercept = -z / affine[0];
- xi = ceil (x_intercept + EPSILON - 0.5);
- if (xi > x0)
- x0 = xi;
- x_intercept = (-z + src_width) / affine[0];
- xi = ceil (x_intercept - EPSILON - 0.5);
- if (xi < x1)
- x1 = xi;
- }
- else if (affine[0] < -EPSILON)
- {
- z = affine[2] * (y + 0.5) + affine[4];
- x_intercept = (-z + src_width) / affine[0];
- xi = ceil (x_intercept + EPSILON - 0.5);
- if (xi > x0)
- x0 = xi;
- x_intercept = -z / affine[0];
- xi = ceil (x_intercept - EPSILON - 0.5);
- if (xi < x1)
- x1 = xi;
- }
- else
- {
- z = affine[2] * (y + 0.5) + affine[4];
- if (z < 0 || z >= src_width)
- {
- *p_x1 = *p_x0;
- return;
- }
- }
-
- /* do top and bottom edges */
- if (affine[1] > EPSILON)
- {
- z = affine[3] * (y + 0.5) + affine[5];
- x_intercept = -z / affine[1];
- xi = ceil (x_intercept + EPSILON - 0.5);
- if (xi > x0)
- x0 = xi;
- x_intercept = (-z + src_height) / affine[1];
- xi = ceil (x_intercept - EPSILON - 0.5);
- if (xi < x1)
- x1 = xi;
- }
- else if (affine[1] < -EPSILON)
- {
- z = affine[3] * (y + 0.5) + affine[5];
- x_intercept = (-z + src_height) / affine[1];
- xi = ceil (x_intercept + EPSILON - 0.5);
- if (xi > x0)
- x0 = xi;
- x_intercept = -z / affine[1];
- xi = ceil (x_intercept - EPSILON - 0.5);
- if (xi < x1)
- x1 = xi;
- }
- else
- {
- z = affine[3] * (y + 0.5) + affine[5];
- if (z < 0 || z >= src_height)
- {
- *p_x1 = *p_x0;
- return;
- }
- }
-
- *p_x0 = x0;
- *p_x1 = x1;
-}
diff --git a/libart_lgpl/art_rgb_affine_private.h b/libart_lgpl/art_rgb_affine_private.h
deleted file mode 100644
index a01ad770f1..0000000000
--- a/libart_lgpl/art_rgb_affine_private.h
+++ /dev/null
@@ -1,41 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_RGB_AFFINE_PRIVATE_H__
-#define __ART_RGB_AFFINE_PRIVATE_H__
-
-/* This module handles compositing of affine-transformed rgb images
- over rgb pixel buffers. */
-
-#include <glib.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-void
-art_rgb_affine_run (gint *p_x0, gint *p_x1, gint y,
- gint src_width, gint src_height,
- const gdouble affine[6]);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
diff --git a/libart_lgpl/art_rgb_rgba_affine.c b/libart_lgpl/art_rgb_rgba_affine.c
deleted file mode 100644
index a6da49ed91..0000000000
--- a/libart_lgpl/art_rgb_rgba_affine.c
+++ /dev/null
@@ -1,142 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#include "config.h"
-#include "art_rgb_rgba_affine.h"
-
-#include <math.h>
-#include "art_misc.h"
-#include "art_point.h"
-#include "art_affine.h"
-#include "art_rgb_affine_private.h"
-
-/* This module handles compositing of affine-transformed rgba images
- over rgb pixel buffers. */
-
-/* Composite the source image over the destination image, applying the
- affine transform. */
-
-/**
- * art_rgb_rgba_affine: Affine transform source RGBA image and composite.
- * @dst: Destination image RGB buffer.
- * @x0: Left coordinate of destination rectangle.
- * @y0: Top coordinate of destination rectangle.
- * @x1: Right coordinate of destination rectangle.
- * @y1: Bottom coordinate of destination rectangle.
- * @dst_rowstride: Rowstride of @dst buffer.
- * @src: Source image RGBA buffer.
- * @src_width: Width of source image.
- * @src_height: Height of source image.
- * @src_rowstride: Rowstride of @src buffer.
- * @affine: Affine transform.
- * @level: Filter level.
- * @alphagamma: #ArtAlphaGamma for gamma-correcting the compositing.
- *
- * Affine transform the source image stored in @src, compositing over
- * the area of destination image @dst specified by the rectangle
- * (@x0, @y0) - (@x1, @y1). As usual in libart, the left and top edges
- * of this rectangle are included, and the right and bottom edges are
- * excluded.
- *
- * The @alphagamma parameter specifies that the alpha compositing be
- * done in a gamma-corrected color space. In the current
- * implementation, it is ignored.
- *
- * The @level parameter specifies the speed/quality tradeoff of the
- * image interpolation. Currently, only ART_FILTER_NEAREST is
- * implemented.
- **/
-void
-art_rgb_rgba_affine (art_u8 *dst,
- gint x0, gint y0, gint x1, gint y1, gint dst_rowstride,
- const art_u8 *src,
- gint src_width, gint src_height, gint src_rowstride,
- const gdouble affine[6],
- ArtFilterLevel level,
- ArtAlphaGamma *alphagamma)
-{
- /* Note: this is a slow implementation, and is missing all filter
- levels other than NEAREST. It is here for clarity of presentation
- and to establish the interface. */
- gint x, y;
- gdouble inv[6];
- art_u8 *dst_p, *dst_linestart;
- const art_u8 *src_p;
- ArtPoint pt, src_pt;
- gint src_x, src_y;
- gint alpha;
- art_u8 bg_r, bg_g, bg_b;
- art_u8 fg_r, fg_g, fg_b;
- gint tmp;
- gint run_x0, run_x1;
-
- dst_linestart = dst;
- art_affine_invert (inv, affine);
- for (y = y0; y < y1; y++)
- {
- pt.y = y + 0.5;
- run_x0 = x0;
- run_x1 = x1;
- art_rgb_affine_run (&run_x0, &run_x1, y, src_width, src_height,
- inv);
- dst_p = dst_linestart + (run_x0 - x0) * 3;
- for (x = run_x0; x < run_x1; x++)
- {
- pt.x = x + 0.5;
- art_affine_point (&src_pt, &pt, inv);
- src_x = floor (src_pt.x);
- src_y = floor (src_pt.y);
- src_p = src + (src_y * src_rowstride) + src_x * 4;
- if (src_x >= 0 && src_x < src_width &&
- src_y >= 0 && src_y < src_height)
- {
-
- alpha = src_p[3];
- if (alpha)
- {
- if (alpha == 255)
- {
- dst_p[0] = src_p[0];
- dst_p[1] = src_p[1];
- dst_p[2] = src_p[2];
- }
- else
- {
- bg_r = dst_p[0];
- bg_g = dst_p[1];
- bg_b = dst_p[2];
-
- tmp = (src_p[0] - bg_r) * alpha;
- fg_r = bg_r + ((tmp + (tmp >> 8) + 0x80) >> 8);
- tmp = (src_p[1] - bg_g) * alpha;
- fg_g = bg_g + ((tmp + (tmp >> 8) + 0x80) >> 8);
- tmp = (src_p[2] - bg_b) * alpha;
- fg_b = bg_b + ((tmp + (tmp >> 8) + 0x80) >> 8);
-
- dst_p[0] = fg_r;
- dst_p[1] = fg_g;
- dst_p[2] = fg_b;
- }
- }
- } else { dst_p[0] = 255; dst_p[1] = 0; dst_p[2] = 0; }
- dst_p += 3;
- }
- dst_linestart += dst_rowstride;
- }
-}
diff --git a/libart_lgpl/art_rgb_rgba_affine.h b/libart_lgpl/art_rgb_rgba_affine.h
deleted file mode 100644
index 154084b670..0000000000
--- a/libart_lgpl/art_rgb_rgba_affine.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_RGB_RGBA_AFFINE_H__
-#define __ART_RGB_RGBA_AFFINE_H__
-
-/* This module handles compositing of affine-transformed rgba images
- over rgb pixel buffers. */
-
-#include <libart_lgpl/art_filterlevel.h>
-#include <libart_lgpl/art_alphagamma.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-void
-art_rgb_rgba_affine (art_u8 *dst,
- gint x0, gint y0, gint x1, gint y1, gint dst_rowstride,
- const art_u8 *src,
- gint src_width, gint src_height, gint src_rowstride,
- const gdouble affine[6],
- ArtFilterLevel level,
- ArtAlphaGamma *alphagamma);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
diff --git a/libart_lgpl/art_rgb_svp.c b/libart_lgpl/art_rgb_svp.c
deleted file mode 100644
index afd57aeed6..0000000000
--- a/libart_lgpl/art_rgb_svp.c
+++ /dev/null
@@ -1,457 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/* Render a sorted vector path into an RGB buffer. */
-
-#include "config.h"
-#include "art_rgb_svp.h"
-
-#include "art_svp.h"
-#include "art_svp_render_aa.h"
-#include "art_rgb.h"
-
-typedef struct _ArtRgbSVPData ArtRgbSVPData;
-typedef struct _ArtRgbSVPAlphaData ArtRgbSVPAlphaData;
-
-struct _ArtRgbSVPData {
- art_u32 rgbtab[256];
- art_u8 *buf;
- gint rowstride;
- gint x0, x1;
-};
-
-struct _ArtRgbSVPAlphaData {
- gint alphatab[256];
- art_u8 r, g, b, alpha;
- art_u8 *buf;
- gint rowstride;
- gint x0, x1;
-};
-
-static void
-art_rgb_svp_callback (gpointer callback_data, gint y,
- gint start, ArtSVPRenderAAStep *steps, gint n_steps)
-{
- ArtRgbSVPData *data = (ArtRgbSVPData *)callback_data;
- art_u8 *linebuf;
- gint run_x0, run_x1;
- art_u32 running_sum = start;
- art_u32 rgb;
- gint x0, x1;
- gint k;
-
- linebuf = data->buf;
- x0 = data->x0;
- x1 = data->x1;
-
- if (n_steps > 0)
- {
- run_x1 = steps[0].x;
- if (run_x1 > x0)
- {
- rgb = data->rgbtab[(running_sum >> 16) & 0xff];
- art_rgb_fill_run (linebuf,
- rgb >> 16, (rgb >> 8) & 0xff, rgb & 0xff,
- run_x1 - x0);
- }
-
- for (k = 0; k < n_steps - 1; k++)
- {
- running_sum += steps[k].delta;
- run_x0 = run_x1;
- run_x1 = steps[k + 1].x;
- if (run_x1 > run_x0)
- {
- rgb = data->rgbtab[(running_sum >> 16) & 0xff];
- art_rgb_fill_run (linebuf + (run_x0 - x0) * 3,
- rgb >> 16, (rgb >> 8) & 0xff, rgb & 0xff,
- run_x1 - run_x0);
- }
- }
- running_sum += steps[k].delta;
- if (x1 > run_x1)
- {
- rgb = data->rgbtab[(running_sum >> 16) & 0xff];
- art_rgb_fill_run (linebuf + (run_x1 - x0) * 3,
- rgb >> 16, (rgb >> 8) & 0xff, rgb & 0xff,
- x1 - run_x1);
- }
- }
- else
- {
- rgb = data->rgbtab[(running_sum >> 16) & 0xff];
- art_rgb_fill_run (linebuf,
- rgb >> 16, (rgb >> 8) & 0xff, rgb & 0xff,
- x1 - x0);
- }
-
- data->buf += data->rowstride;
-}
-
-/* Render the vector path into the RGB buffer. */
-
-/**
- * art_rgb_svp_aa: Render sorted vector path into RGB buffer.
- * @svp: The source sorted vector path.
- * @x0: Left coordinate of destination rectangle.
- * @y0: Top coordinate of destination rectangle.
- * @x1: Right coordinate of destination rectangle.
- * @y1: Bottom coordinate of destination rectangle.
- * @fg_color: Foreground color in 0xRRGGBB format.
- * @bg_color: Background color in 0xRRGGBB format.
- * @buf: Destination RGB buffer.
- * @rowstride: Rowstride of @buf buffer.
- * @alphagamma: #ArtAlphaGamma for gamma-correcting the rendering.
- *
- * Renders the shape specified with @svp into the @buf RGB buffer.
- * @x1 - @x0 specifies the width, and @y1 - @y0 specifies the height,
- * of the rectangle rendered. The new pixels are stored starting at
- * the first byte of @buf. Thus, the @x0 and @y0 parameters specify
- * an offset within @svp, and may be tweaked as a way of doing
- * integer-pixel translations without fiddling with @svp itself.
- *
- * The @fg_color and @bg_color arguments specify the opaque colors to
- * be used for rendering. For pixels of entirely 0 winding-number,
- * @bg_color is used. For pixels of entirely 1 winding number,
- * @fg_color is used. In between, the color is interpolated based on
- * the fraction of the pixel with a winding number of 1. If
- * @alphagamma is NULL, then linear interpolation (in pixel counts) is
- * the default. Otherwise, the interpolation is as specified by
- * @alphagamma.
- **/
-void
-art_rgb_svp_aa (const ArtSVP *svp,
- gint x0, gint y0, gint x1, gint y1,
- art_u32 fg_color, art_u32 bg_color,
- art_u8 *buf, gint rowstride,
- ArtAlphaGamma *alphagamma)
-{
- ArtRgbSVPData data;
-
- gint r_fg, g_fg, b_fg;
- gint r_bg, g_bg, b_bg;
- gint r, g, b;
- gint dr, dg, db;
- gint i;
-
- if (alphagamma == NULL)
- {
- r_fg = fg_color >> 16;
- g_fg = (fg_color >> 8) & 0xff;
- b_fg = fg_color & 0xff;
-
- r_bg = bg_color >> 16;
- g_bg = (bg_color >> 8) & 0xff;
- b_bg = bg_color & 0xff;
-
- r = (r_bg << 16) + 0x8000;
- g = (g_bg << 16) + 0x8000;
- b = (b_bg << 16) + 0x8000;
- dr = ((r_fg - r_bg) << 16) / 255;
- dg = ((g_fg - g_bg) << 16) / 255;
- db = ((b_fg - b_bg) << 16) / 255;
-
- for (i = 0; i < 256; i++)
- {
- data.rgbtab[i] = (r & 0xff0000) | ((g & 0xff0000) >> 8) | (b >> 16);
- r += dr;
- g += dg;
- b += db;
- }
- }
- else
- {
- gint *table;
- art_u8 *invtab;
-
- table = alphagamma->table;
-
- r_fg = table[fg_color >> 16];
- g_fg = table[(fg_color >> 8) & 0xff];
- b_fg = table[fg_color & 0xff];
-
- r_bg = table[bg_color >> 16];
- g_bg = table[(bg_color >> 8) & 0xff];
- b_bg = table[bg_color & 0xff];
-
- r = (r_bg << 16) + 0x8000;
- g = (g_bg << 16) + 0x8000;
- b = (b_bg << 16) + 0x8000;
- dr = ((r_fg - r_bg) << 16) / 255;
- dg = ((g_fg - g_bg) << 16) / 255;
- db = ((b_fg - b_bg) << 16) / 255;
-
- invtab = alphagamma->invtable;
- for (i = 0; i < 256; i++)
- {
- data.rgbtab[i] = (invtab[r >> 16] << 16) |
- (invtab[g >> 16] << 8) |
- invtab[b >> 16];
- r += dr;
- g += dg;
- b += db;
- }
- }
- data.buf = buf;
- data.rowstride = rowstride;
- data.x0 = x0;
- data.x1 = x1;
- art_svp_render_aa (svp, x0, y0, x1, y1, art_rgb_svp_callback, &data);
-}
-
-static void
-art_rgb_svp_alpha_callback (gpointer callback_data, gint y,
- gint start, ArtSVPRenderAAStep *steps, gint n_steps)
-{
- ArtRgbSVPAlphaData *data = (ArtRgbSVPAlphaData *)callback_data;
- art_u8 *linebuf;
- gint run_x0, run_x1;
- art_u32 running_sum = start;
- gint x0, x1;
- gint k;
- art_u8 r, g, b;
- gint *alphatab;
- gint alpha;
-
- linebuf = data->buf;
- x0 = data->x0;
- x1 = data->x1;
-
- r = data->r;
- g = data->g;
- b = data->b;
- alphatab = data->alphatab;
-
- if (n_steps > 0)
- {
- run_x1 = steps[0].x;
- if (run_x1 > x0)
- {
- alpha = (running_sum >> 16) & 0xff;
- if (alpha)
- art_rgb_run_alpha (linebuf,
- r, g, b, alphatab[alpha],
- run_x1 - x0);
- }
-
- for (k = 0; k < n_steps - 1; k++)
- {
- running_sum += steps[k].delta;
- run_x0 = run_x1;
- run_x1 = steps[k + 1].x;
- if (run_x1 > run_x0)
- {
- alpha = (running_sum >> 16) & 0xff;
- if (alpha)
- art_rgb_run_alpha (linebuf + (run_x0 - x0) * 3,
- r, g, b, alphatab[alpha],
- run_x1 - run_x0);
- }
- }
- running_sum += steps[k].delta;
- if (x1 > run_x1)
- {
- alpha = (running_sum >> 16) & 0xff;
- if (alpha)
- art_rgb_run_alpha (linebuf + (run_x1 - x0) * 3,
- r, g, b, alphatab[alpha],
- x1 - run_x1);
- }
- }
- else
- {
- alpha = (running_sum >> 16) & 0xff;
- if (alpha)
- art_rgb_run_alpha (linebuf,
- r, g, b, alphatab[alpha],
- x1 - x0);
- }
-
- data->buf += data->rowstride;
-}
-
-static void
-art_rgb_svp_alpha_opaque_callback (gpointer callback_data, gint y,
- gint start,
- ArtSVPRenderAAStep *steps, gint n_steps)
-{
- ArtRgbSVPAlphaData *data = (ArtRgbSVPAlphaData *)callback_data;
- art_u8 *linebuf;
- gint run_x0, run_x1;
- art_u32 running_sum = start;
- gint x0, x1;
- gint k;
- art_u8 r, g, b;
- gint *alphatab;
- gint alpha;
-
- linebuf = data->buf;
- x0 = data->x0;
- x1 = data->x1;
-
- r = data->r;
- g = data->g;
- b = data->b;
- alphatab = data->alphatab;
-
- if (n_steps > 0)
- {
- run_x1 = steps[0].x;
- if (run_x1 > x0)
- {
- alpha = running_sum >> 16;
- if (alpha)
- {
- if (alpha >= 255)
- art_rgb_fill_run (linebuf,
- r, g, b,
- run_x1 - x0);
- else
- art_rgb_run_alpha (linebuf,
- r, g, b, alphatab[alpha],
- run_x1 - x0);
- }
- }
-
- for (k = 0; k < n_steps - 1; k++)
- {
- running_sum += steps[k].delta;
- run_x0 = run_x1;
- run_x1 = steps[k + 1].x;
- if (run_x1 > run_x0)
- {
- alpha = running_sum >> 16;
- if (alpha)
- {
- if (alpha >= 255)
- art_rgb_fill_run (linebuf + (run_x0 - x0) * 3,
- r, g, b,
- run_x1 - run_x0);
- else
- art_rgb_run_alpha (linebuf + (run_x0 - x0) * 3,
- r, g, b, alphatab[alpha],
- run_x1 - run_x0);
- }
- }
- }
- running_sum += steps[k].delta;
- if (x1 > run_x1)
- {
- alpha = running_sum >> 16;
- if (alpha)
- {
- if (alpha >= 255)
- art_rgb_fill_run (linebuf + (run_x1 - x0) * 3,
- r, g, b,
- x1 - run_x1);
- else
- art_rgb_run_alpha (linebuf + (run_x1 - x0) * 3,
- r, g, b, alphatab[alpha],
- x1 - run_x1);
- }
- }
- }
- else
- {
- alpha = running_sum >> 16;
- if (alpha)
- {
- if (alpha >= 255)
- art_rgb_fill_run (linebuf,
- r, g, b,
- x1 - x0);
- else
- art_rgb_run_alpha (linebuf,
- r, g, b, alphatab[alpha],
- x1 - x0);
- }
- }
-
- data->buf += data->rowstride;
-}
-
-/**
- * art_rgb_svp_alpha: Alpha-composite sorted vector path over RGB buffer.
- * @svp: The source sorted vector path.
- * @x0: Left coordinate of destination rectangle.
- * @y0: Top coordinate of destination rectangle.
- * @x1: Right coordinate of destination rectangle.
- * @y1: Bottom coordinate of destination rectangle.
- * @rgba: Color in 0xRRGGBBAA format.
- * @buf: Destination RGB buffer.
- * @rowstride: Rowstride of @buf buffer.
- * @alphagamma: #ArtAlphaGamma for gamma-correcting the compositing.
- *
- * Renders the shape specified with @svp over the @buf RGB buffer.
- * @x1 - @x0 specifies the width, and @y1 - @y0 specifies the height,
- * of the rectangle rendered. The new pixels are stored starting at
- * the first byte of @buf. Thus, the @x0 and @y0 parameters specify
- * an offset within @svp, and may be tweaked as a way of doing
- * integer-pixel translations without fiddling with @svp itself.
- *
- * The @rgba argument specifies the color for the rendering. Pixels of
- * entirely 0 winding number are left untouched. Pixels of entirely
- * 1 winding number have the color @rgba composited over them (ie,
- * are replaced by the red, green, blue components of @rgba if the alpha
- * component is 0xff). Pixels of intermediate coverage are interpolated
- * according to the rule in @alphagamma, or default to linear if
- * @alphagamma is NULL.
- **/
-void
-art_rgb_svp_alpha (const ArtSVP *svp,
- gint x0, gint y0, gint x1, gint y1,
- art_u32 rgba,
- art_u8 *buf, gint rowstride,
- ArtAlphaGamma *alphagamma)
-{
- ArtRgbSVPAlphaData data;
- gint r, g, b, alpha;
- gint i;
- gint a, da;
-
- r = rgba >> 24;
- g = (rgba >> 16) & 0xff;
- b = (rgba >> 8) & 0xff;
- alpha = rgba & 0xff;
-
- data.r = r;
- data.g = g;
- data.b = b;
- data.alpha = alpha;
-
- a = 0x8000;
- da = (alpha * 66051 + 0x80) >> 8; /* 66051 equals 2 ^ 32 / (255 * 255) */
-
- for (i = 0; i < 256; i++)
- {
- data.alphatab[i] = a >> 16;
- a += da;
- }
-
- data.buf = buf;
- data.rowstride = rowstride;
- data.x0 = x0;
- data.x1 = x1;
- if (alpha == 255)
- art_svp_render_aa (svp, x0, y0, x1, y1, art_rgb_svp_alpha_opaque_callback,
- &data);
- else
- art_svp_render_aa (svp, x0, y0, x1, y1, art_rgb_svp_alpha_callback, &data);
-}
-
diff --git a/libart_lgpl/art_rgb_svp.h b/libart_lgpl/art_rgb_svp.h
deleted file mode 100644
index 5d68616255..0000000000
--- a/libart_lgpl/art_rgb_svp.h
+++ /dev/null
@@ -1,50 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_RGB_SVP_H__
-#define __ART_RGB_SVP_H__
-
-/* Render a sorted vector path into an RGB buffer. */
-
-#include <libart_lgpl/art_alphagamma.h>
-#include <libart_lgpl/art_svp.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-void
-art_rgb_svp_aa (const ArtSVP *svp,
- gint x0, gint y0, gint x1, gint y1,
- art_u32 fg_color, art_u32 bg_color,
- art_u8 *buf, gint rowstride,
- ArtAlphaGamma *alphagamma);
-
-void
-art_rgb_svp_alpha (const ArtSVP *svp,
- gint x0, gint y0, gint x1, gint y1,
- art_u32 rgba,
- art_u8 *buf, gint rowstride,
- ArtAlphaGamma *alphagamma);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __ART_RGB_SVP_H__ */
diff --git a/libart_lgpl/art_svp.c b/libart_lgpl/art_svp.c
deleted file mode 100644
index 69814cca00..0000000000
--- a/libart_lgpl/art_svp.c
+++ /dev/null
@@ -1,74 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/* Basic constructors and operations for sorted vector paths */
-
-#include "config.h"
-#include "art_svp.h"
-
-#include "art_misc.h"
-
-/**
- * art_svp_free: Free an #ArtSVP structure.
- * @svp: #ArtSVP to free.
- *
- * Frees an #ArtSVP structure and all the segments in it.
- **/
-void
-art_svp_free (ArtSVP *svp)
-{
- gint n_segs = svp->n_segs;
- gint i;
-
- for (i = 0; i < n_segs; i++)
- art_free (svp->segs[i].points);
- art_free (svp);
-}
-
-#ifdef ART_USE_NEW_INTERSECTOR
-#define EPSILON 0
-#else
-#define EPSILON 1e-6
-#endif
-
-/**
- * art_svp_seg_compare: Compare two segments of an svp.
- * @seg1: First segment to compare.
- * @seg2: Second segment to compare.
- *
- * Compares two segments of an svp. Return 1 if @seg2 is below or to the
- * right of @seg1, -1 otherwise.
- **/
-gint
-art_svp_seg_compare (gconstpointer s1, gconstpointer s2)
-{
- const ArtSVPSeg *seg1 = s1;
- const ArtSVPSeg *seg2 = s2;
-
- if (seg1->points[0].y - EPSILON > seg2->points[0].y) return 1;
- else if (seg1->points[0].y + EPSILON < seg2->points[0].y) return -1;
- else if (seg1->points[0].x - EPSILON > seg2->points[0].x) return 1;
- else if (seg1->points[0].x + EPSILON < seg2->points[0].x) return -1;
- else if ((seg1->points[1].x - seg1->points[0].x) *
- (seg2->points[1].y - seg2->points[0].y) -
- (seg1->points[1].y - seg1->points[0].y) *
- (seg2->points[1].x - seg2->points[0].x) > 0) return 1;
- else return -1;
-}
-
diff --git a/libart_lgpl/art_svp.h b/libart_lgpl/art_svp.h
deleted file mode 100644
index f1627c70ef..0000000000
--- a/libart_lgpl/art_svp.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_SVP_H__
-#define __ART_SVP_H__
-
-/* Basic data structures and constructors for sorted vector paths */
-
-#include <libart_lgpl/art_rect.h>
-#include <libart_lgpl/art_point.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-typedef struct _ArtSVP ArtSVP;
-typedef struct _ArtSVPSeg ArtSVPSeg;
-
-struct _ArtSVPSeg {
- gint n_points;
- gint dir; /* == 0 for "up", 1 for "down" */
- ArtDRect bbox;
- ArtPoint *points;
-};
-
-struct _ArtSVP {
- gint n_segs;
- ArtSVPSeg segs[1];
-};
-
-void
-art_svp_free (ArtSVP *svp);
-
-gint
-art_svp_seg_compare (gconstpointer s1, gconstpointer s2);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __ART_SVP_H__ */
diff --git a/libart_lgpl/art_svp_intersect.c b/libart_lgpl/art_svp_intersect.c
deleted file mode 100644
index 1074d084d7..0000000000
--- a/libart_lgpl/art_svp_intersect.c
+++ /dev/null
@@ -1,1675 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 2001 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/* This file contains a testbed implementation of the new intersection
- code.
-*/
-
-#include "config.h"
-#include "art_svp_intersect.h"
-
-#include <math.h> /* for sqrt */
-
-/* Sanitychecking verifies the main invariant on every priority queue
- point. Do not use in production, as it slows things down way too
- much. */
-#define noSANITYCHECK
-
-/* This can be used in production, to prevent hangs. Eventually, it
- should not be necessary. */
-#define CHEAP_SANITYCHECK
-
-#include "art_misc.h"
-
-/* A priority queue - perhaps move to a separate file if it becomes
- needed somewhere else */
-
-#define ART_PRIQ_USE_HEAP
-
-typedef struct _ArtPriQ ArtPriQ;
-typedef struct _ArtPriPoint ArtPriPoint;
-
-struct _ArtPriQ {
- gint n_items;
- gint n_items_max;
- ArtPriPoint **items;
-};
-
-struct _ArtPriPoint {
- gdouble x;
- gdouble y;
- gpointer user_data;
-};
-
-static ArtPriQ *
-art_pri_new (void)
-{
- ArtPriQ *result = art_new (ArtPriQ, 1);
-
- result->n_items = 0;
- result->n_items_max = 16;
- result->items = art_new (ArtPriPoint *, result->n_items_max);
- return result;
-}
-
-static void
-art_pri_free (ArtPriQ *pq)
-{
- art_free (pq->items);
- art_free (pq);
-}
-
-static art_boolean
-art_pri_empty (ArtPriQ *pq)
-{
- return pq->n_items == 0;
-}
-
-#ifdef ART_PRIQ_USE_HEAP
-
-/* This heap implementation is based on Vasek Chvatal's course notes:
- http://www.cs.rutgers.edu/~chvatal/notes/pq.html#heap */
-
-static void
-art_pri_bubble_up (ArtPriQ *pq, gint vacant, ArtPriPoint *missing)
-{
- ArtPriPoint **items = pq->items;
- gint parent;
-
- parent = (vacant - 1) >> 1;
- while (vacant > 0 && (missing->y < items[parent]->y ||
- (missing->y == items[parent]->y &&
- missing->x < items[parent]->x)))
- {
- items[vacant] = items[parent];
- vacant = parent;
- parent = (vacant - 1) >> 1;
- }
-
- items[vacant] = missing;
-}
-
-static void
-art_pri_insert (ArtPriQ *pq, ArtPriPoint *point)
-{
- if (pq->n_items == pq->n_items_max)
- art_expand (pq->items, ArtPriPoint *, pq->n_items_max);
-
- art_pri_bubble_up (pq, pq->n_items++, point);
-}
-
-static void
-art_pri_sift_down_from_root (ArtPriQ *pq, ArtPriPoint *missing)
-{
- ArtPriPoint **items = pq->items;
- gint vacant = 0, child = 2;
- gint n = pq->n_items;
-
- while (child < n)
- {
- if (items[child - 1]->y < items[child]->y ||
- (items[child - 1]->y == items[child]->y &&
- items[child - 1]->x < items[child]->x))
- child--;
- items[vacant] = items[child];
- vacant = child;
- child = (vacant + 1) << 1;
- }
- if (child == n)
- {
- items[vacant] = items[n - 1];
- vacant = n - 1;
- }
-
- art_pri_bubble_up (pq, vacant, missing);
-}
-
-static ArtPriPoint *
-art_pri_choose (ArtPriQ *pq)
-{
- ArtPriPoint *result = pq->items[0];
-
- art_pri_sift_down_from_root (pq, pq->items[--pq->n_items]);
- return result;
-}
-
-#else
-
-/* Choose least point in queue */
-static ArtPriPoint *
-art_pri_choose (ArtPriQ *pq)
-{
- gint i;
- gint best = 0;
- gdouble best_x, best_y;
- gdouble y;
- ArtPriPoint *result;
-
- if (pq->n_items == 0)
- return NULL;
-
- best_x = pq->items[best]->x;
- best_y = pq->items[best]->y;
-
- for (i = 1; i < pq->n_items; i++)
- {
- y = pq->items[i]->y;
- if (y < best_y || (y == best_y && pq->items[i]->x < best_x))
- {
- best = i;
- best_x = pq->items[best]->x;
- best_y = y;
- }
- }
- result = pq->items[best];
- pq->items[best] = pq->items[--pq->n_items];
- return result;
-}
-
-static void
-art_pri_insert (ArtPriQ *pq, ArtPriPoint *point)
-{
- if (pq->n_items == pq->n_items_max)
- art_expand (pq->items, ArtPriPoint *, pq->n_items_max);
-
- pq->items[pq->n_items++] = point;
-}
-
-#endif
-
-#ifdef TEST_PRIQ
-
-#include <stdlib.h> /* for rand() */
-#include <stdio.h>
-
-static double
-double_rand (gdouble lo, gdouble hi, gint quant)
-{
- gint tmp = rand () / (RAND_MAX * (1.0 / quant)) + 0.5;
- return lo + tmp * ((hi - lo) / quant);
-}
-
-/*
- * This custom allocator for priority queue points is here so I can
- * test speed. It doesn't look like it will be that significant, but
- * if I want a small improvement later, it's something.
- */
-
-typedef ArtPriPoint *ArtPriPtPool;
-
-static ArtPriPtPool *
-art_pri_pt_pool_new (void)
-{
- ArtPriPtPool *result = art_new (ArtPriPtPool, 1);
- *result = NULL;
- return result;
-}
-
-static ArtPriPoint *
-art_pri_pt_alloc (ArtPriPtPool *pool)
-{
- ArtPriPoint *result = *pool;
- if (result == NULL)
- return art_new (ArtPriPoint, 1);
- else
- {
- *pool = result->user_data;
- return result;
- }
-}
-
-static void
-art_pri_pt_free (ArtPriPtPool *pool, ArtPriPoint *pt)
-{
- pt->user_data = *pool;
- *pool = pt;
-}
-
-static void
-art_pri_pt_pool_free (ArtPriPtPool *pool)
-{
- ArtPriPoint *pt = *pool;
- while (pt != NULL)
- {
- ArtPriPoint *next = pt->user_data;
- art_free (pt);
- pt = next;
- }
- art_free (pool);
-}
-
-gint
-main (gint argc, gchar **argv)
-{
- ArtPriPtPool *pool = art_pri_pt_pool_new ();
- ArtPriQ *pq;
- gint i, j;
- const gint n_iter = 1;
- const gint pq_size = 100;
-
- for (j = 0; j < n_iter; j++)
- {
- pq = art_pri_new ();
-
- for (i = 0; i < pq_size; i++)
- {
- ArtPriPoint *pt = art_pri_pt_alloc (pool);
- pt->x = double_rand (0, 1, 100);
- pt->y = double_rand (0, 1, 100);
- pt->user_data = (gpointer)i;
- art_pri_insert (pq, pt);
- }
-
- while (!art_pri_empty (pq))
- {
- ArtPriPoint *pt = art_pri_choose (pq);
- if (n_iter == 1)
- printf ("(%g, %g), %d\n", pt->x, pt->y, (gint)pt->user_data);
- art_pri_pt_free (pool, pt);
- }
-
- art_pri_free (pq);
- }
- art_pri_pt_pool_free (pool);
- return 0;
-}
-
-#else /* TEST_PRIQ */
-
-/* A virtual class for an "svp writer". A client of this object creates an
- SVP by repeatedly calling "add segment" and "add point" methods on it.
-*/
-
-typedef struct _ArtSvpWriterRewind ArtSvpWriterRewind;
-
-/* An implementation of the svp writer virtual class that applies the
- winding rule. */
-
-struct _ArtSvpWriterRewind {
- ArtSvpWriter super;
- ArtWindRule rule;
- ArtSVP *svp;
- gint n_segs_max;
- gint *n_points_max;
-};
-
-static gint
-art_svp_writer_rewind_add_segment (ArtSvpWriter *self, gint wind_left,
- gint delta_wind, gdouble x, gdouble y)
-{
- ArtSvpWriterRewind *swr = (ArtSvpWriterRewind *)self;
- ArtSVP *svp;
- ArtSVPSeg *seg;
- art_boolean left_filled, right_filled;
- gint wind_right = wind_left + delta_wind;
- gint seg_num;
- const gint init_n_points_max = 4;
-
- switch (swr->rule)
- {
- case ART_WIND_RULE_NONZERO:
- left_filled = (wind_left != 0);
- right_filled = (wind_right != 0);
- break;
- case ART_WIND_RULE_INTERSECT:
- left_filled = (wind_left > 1);
- right_filled = (wind_right > 1);
- break;
- case ART_WIND_RULE_ODDEVEN:
- left_filled = (wind_left & 1);
- right_filled = (wind_right & 1);
- break;
- case ART_WIND_RULE_POSITIVE:
- left_filled = (wind_left > 0);
- right_filled = (wind_right > 0);
- break;
- default:
- art_die ("Unknown wind rule %d\n", swr->rule);
- }
- if (left_filled == right_filled)
- {
- /* discard segment now */
- return -1;
- }
-
- svp = swr->svp;
- seg_num = svp->n_segs++;
- if (swr->n_segs_max == seg_num)
- {
- swr->n_segs_max <<= 1;
- svp = (ArtSVP *)art_realloc (svp, sizeof (ArtSVP) +
- (swr->n_segs_max - 1) *
- sizeof (ArtSVPSeg));
- swr->svp = svp;
- swr->n_points_max = art_renew (swr->n_points_max, int,
- swr->n_segs_max);
- }
- seg = &svp->segs[seg_num];
- seg->n_points = 1;
- seg->dir = right_filled;
- swr->n_points_max[seg_num] = init_n_points_max;
- seg->bbox.x0 = x;
- seg->bbox.y0 = y;
- seg->bbox.x1 = x;
- seg->bbox.y1 = y;
- seg->points = art_new (ArtPoint, init_n_points_max);
- seg->points[0].x = x;
- seg->points[0].y = y;
- return seg_num;
-}
-
-static void
-art_svp_writer_rewind_add_point (ArtSvpWriter *self, gint seg_id,
- gdouble x, gdouble y)
-{
- ArtSvpWriterRewind *swr = (ArtSvpWriterRewind *)self;
- ArtSVPSeg *seg;
- gint n_points;
-
- if (seg_id < 0)
- /* omitted segment */
- return;
-
- seg = &swr->svp->segs[seg_id];
- n_points = seg->n_points++;
- if (swr->n_points_max[seg_id] == n_points)
- art_expand (seg->points, ArtPoint, swr->n_points_max[seg_id]);
- seg->points[n_points].x = x;
- seg->points[n_points].y = y;
- if (x < seg->bbox.x0)
- seg->bbox.x0 = x;
- if (x > seg->bbox.x1)
- seg->bbox.x1 = x;
- seg->bbox.y1 = y;
-}
-
-static void
-art_svp_writer_rewind_close_segment (ArtSvpWriter *self, gint seg_id)
-{
- /* Not needed for this simple implementation. A potential future
- optimization is to merge segments that can be merged safely. */
-#ifdef SANITYCHECK
- ArtSvpWriterRewind *swr = (ArtSvpWriterRewind *)self;
- ArtSVPSeg *seg;
-
- if (seg_id >= 0)
- {
- seg = &swr->svp->segs[seg_id];
- if (seg->n_points < 2)
- art_warn ("*** closing segment %d with only %d point%s\n",
- seg_id, seg->n_points, seg->n_points == 1 ? "" : "s");
- }
-#endif
-
-}
-
-ArtSVP *
-art_svp_writer_rewind_reap (ArtSvpWriter *self)
-{
- ArtSvpWriterRewind *swr = (ArtSvpWriterRewind *)self;
- ArtSVP *result = swr->svp;
-
- art_free (swr->n_points_max);
- art_free (swr);
- return result;
-}
-
-ArtSvpWriter *
-art_svp_writer_rewind_new (ArtWindRule rule)
-{
- ArtSvpWriterRewind *result = art_new (ArtSvpWriterRewind, 1);
-
- result->super.add_segment = art_svp_writer_rewind_add_segment;
- result->super.add_point = art_svp_writer_rewind_add_point;
- result->super.close_segment = art_svp_writer_rewind_close_segment;
-
- result->rule = rule;
- result->n_segs_max = 16;
- result->svp = art_alloc (sizeof (ArtSVP) +
- (result->n_segs_max - 1) * sizeof (ArtSVPSeg));
- result->svp->n_segs = 0;
- result->n_points_max = art_new (int, result->n_segs_max);
-
- return &result->super;
-}
-
-/* Now, data structures for the active list */
-
-typedef struct _ArtActiveSeg ArtActiveSeg;
-
-/* Note: BNEG is 1 for \ lines, and 0 for /. Thus,
- x[(flags & BNEG) ^ 1] <= x[flags & BNEG] */
-#define ART_ACTIVE_FLAGS_BNEG 1
-
-/* This flag is set if the segment has been inserted into the active
- list. */
-#define ART_ACTIVE_FLAGS_IN_ACTIVE 2
-
-/* This flag is set when the segment is to be deleted in the
- horiz commit process. */
-#define ART_ACTIVE_FLAGS_DEL 4
-
-/* This flag is set if the seg_id is a valid output segment. */
-#define ART_ACTIVE_FLAGS_OUT 8
-
-/* This flag is set if the segment is in the horiz list. */
-#define ART_ACTIVE_FLAGS_IN_HORIZ 16
-
-struct _ArtActiveSeg {
- gint flags;
- gint wind_left, delta_wind;
- ArtActiveSeg *left, *right; /* doubly linked list structure */
-
- const ArtSVPSeg *in_seg;
- gint in_curs;
-
- gdouble x[2];
- gdouble y0, y1;
- gdouble a, b, c; /* line equation; ax+by+c = 0 for the line, a^2 + b^2 = 1,
- and a>0 */
-
- /* bottom point and intersection point stack */
- gint n_stack;
- gint n_stack_max;
- ArtPoint *stack;
-
- /* horiz commit list */
- ArtActiveSeg *horiz_left, *horiz_right;
- gdouble horiz_x;
- gint horiz_delta_wind;
- gint seg_id;
-};
-
-typedef struct _ArtIntersectCtx ArtIntersectCtx;
-
-struct _ArtIntersectCtx {
- const ArtSVP *in;
- ArtSvpWriter *out;
-
- ArtPriQ *pq;
-
- ArtActiveSeg *active_head;
-
- gdouble y;
- ArtActiveSeg *horiz_first;
- ArtActiveSeg *horiz_last;
-
- /* segment index of next input segment to be added to pri q */
- gint in_curs;
-};
-
-#define EPSILON_A 1e-5 /* Threshold for breaking lines at point insertions */
-
-/**
- * art_svp_intersect_setup_seg: Set up an active segment from input segment.
- * @seg: Active segment.
- * @pri_pt: Priority queue point to initialize.
- *
- * Sets the x[], a, b, c, flags, and stack fields according to the
- * line from the current cursor value. Sets the priority queue point
- * to the bottom point of this line. Also advances the input segment
- * cursor.
- **/
-static void
-art_svp_intersect_setup_seg (ArtActiveSeg *seg, ArtPriPoint *pri_pt)
-{
- const ArtSVPSeg *in_seg = seg->in_seg;
- gint in_curs = seg->in_curs++;
- gdouble x0, y0, x1, y1;
- gdouble dx, dy, s;
- gdouble a, b, r2;
-
- x0 = in_seg->points[in_curs].x;
- y0 = in_seg->points[in_curs].y;
- x1 = in_seg->points[in_curs + 1].x;
- y1 = in_seg->points[in_curs + 1].y;
- pri_pt->x = x1;
- pri_pt->y = y1;
- dx = x1 - x0;
- dy = y1 - y0;
- r2 = dx * dx + dy * dy;
- s = r2 == 0 ? 1 : 1 / sqrt (r2);
- seg->a = a = dy * s;
- seg->b = b = -dx * s;
- seg->c = -(a * x0 + b * y0);
- seg->flags = (seg->flags & ~ART_ACTIVE_FLAGS_BNEG) | (dx > 0);
- seg->x[0] = x0;
- seg->x[1] = x1;
- seg->y0 = y0;
- seg->y1 = y1;
- seg->n_stack = 1;
- seg->stack[0].x = x1;
- seg->stack[0].y = y1;
-}
-
-/**
- * art_svp_intersect_add_horiz: Add point to horizontal list.
- * @ctx: Intersector context.
- * @seg: Segment with point to insert into horizontal list.
- *
- * Inserts @seg into horizontal list, keeping it in ascending horiz_x
- * order.
- *
- * Note: the horiz_commit routine processes "clusters" of segs in the
- * horiz list, all sharing the same horiz_x value. The cluster is
- * processed in active list order, rather than horiz list order. Thus,
- * the order of segs in the horiz list sharing the same horiz_x
- * _should_ be irrelevant. Even so, we use b as a secondary sorting key,
- * as a "belt and suspenders" defensive coding tactic.
- **/
-static void
-art_svp_intersect_add_horiz (ArtIntersectCtx *ctx, ArtActiveSeg *seg)
-{
- ArtActiveSeg **pp = &ctx->horiz_last;
- ArtActiveSeg *place;
- ArtActiveSeg *place_right = NULL;
-
-#ifdef CHEAP_SANITYCHECK
- if (seg->flags & ART_ACTIVE_FLAGS_IN_HORIZ)
- {
- art_warn ("*** attempt to put segment in horiz list twice\n");
- return;
- }
- seg->flags |= ART_ACTIVE_FLAGS_IN_HORIZ;
-#endif
-
- for (place = *pp; place != NULL && (place->horiz_x > seg->horiz_x ||
- (place->horiz_x == seg->horiz_x &&
- place->b < seg->b));
- place = *pp)
- {
- place_right = place;
- pp = &place->horiz_left;
- }
- *pp = seg;
- seg->horiz_left = place;
- seg->horiz_right = place_right;
- if (place == NULL)
- ctx->horiz_first = seg;
- else
- place->horiz_right = seg;
-}
-
-static void
-art_svp_intersect_push_pt (ArtIntersectCtx *ctx, ArtActiveSeg *seg,
- gdouble x, gdouble y)
-{
- ArtPriPoint *pri_pt;
- gint n_stack = seg->n_stack;
-
- if (n_stack == seg->n_stack_max)
- art_expand (seg->stack, ArtPoint, seg->n_stack_max);
- seg->stack[n_stack].x = x;
- seg->stack[n_stack].y = y;
- seg->n_stack++;
-
- seg->x[1] = x;
- seg->y1 = y;
-
- pri_pt = art_new (ArtPriPoint, 1);
- pri_pt->x = x;
- pri_pt->y = y;
- pri_pt->user_data = seg;
- art_pri_insert (ctx->pq, pri_pt);
-}
-
-typedef enum {
- ART_BREAK_LEFT = 1,
- ART_BREAK_RIGHT = 2
-} ArtBreakFlags;
-
-/**
- * art_svp_intersect_break: Break an active segment.
- *
- * Note: y must be greater than the top point's y, and less than
- * the bottom's.
- *
- * Return value: x coordinate of break point.
- */
-static double
-art_svp_intersect_break (ArtIntersectCtx *ctx, ArtActiveSeg *seg,
- gdouble x_ref, gdouble y, ArtBreakFlags break_flags)
-{
- gdouble x0, y0, x1, y1;
- const ArtSVPSeg *in_seg = seg->in_seg;
- gint in_curs = seg->in_curs;
- gdouble x;
-
- x0 = in_seg->points[in_curs - 1].x;
- y0 = in_seg->points[in_curs - 1].y;
- x1 = in_seg->points[in_curs].x;
- y1 = in_seg->points[in_curs].y;
- x = x0 + (x1 - x0) * ((y - y0) / (y1 - y0));
- if ((break_flags == ART_BREAK_LEFT && x > x_ref) ||
- (break_flags == ART_BREAK_RIGHT && x < x_ref))
- {
- }
-
- /* I think we can count on min(x0, x1) <= x <= max(x0, x1) with sane
- arithmetic, but it might be worthwhile to check just in case. */
-
- if (y > ctx->y)
- art_svp_intersect_push_pt (ctx, seg, x, y);
- else
- {
- seg->x[0] = x;
- seg->y0 = y;
- seg->horiz_x = x;
- art_svp_intersect_add_horiz (ctx, seg);
- }
-
- return x;
-}
-
-/**
- * art_svp_intersect_add_point: Add a point, breaking nearby neighbors.
- * @ctx: Intersector context.
- * @x: X coordinate of point to add.
- * @y: Y coordinate of point to add.
- * @seg: "nearby" segment, or NULL if leftmost.
- *
- * Return value: Segment immediately to the left of the new point, or
- * NULL if the new point is leftmost.
- **/
-static ArtActiveSeg *
-art_svp_intersect_add_point (ArtIntersectCtx *ctx, gdouble x, gdouble y,
- ArtActiveSeg *seg, ArtBreakFlags break_flags)
-{
- ArtActiveSeg *left, *right;
- gdouble x_min = x, x_max = x;
- art_boolean left_live, right_live;
- gdouble d;
- gdouble new_x;
- ArtActiveSeg *test, *result = NULL;
- gdouble x_test;
-
- left = seg;
- if (left == NULL)
- right = ctx->active_head;
- else
- right = left->right;
- left_live = (break_flags & ART_BREAK_LEFT) && (left != NULL);
- right_live = (break_flags & ART_BREAK_RIGHT) && (right != NULL);
- while (left_live || right_live)
- {
- if (left_live)
- {
- if (x <= left->x[left->flags & ART_ACTIVE_FLAGS_BNEG] &&
- /* It may be that one of these conjuncts turns out to be always
- true. We test both anyway, to be defensive. */
- y != left->y0 && y < left->y1)
- {
- d = x_min * left->a + y * left->b + left->c;
- if (d < EPSILON_A)
- {
- new_x = art_svp_intersect_break (ctx, left, x_min, y,
- ART_BREAK_LEFT);
- if (new_x > x_max)
- {
- x_max = new_x;
- right_live = (right != NULL);
- }
- else if (new_x < x_min)
- x_min = new_x;
- left = left->left;
- left_live = (left != NULL);
- }
- else
- left_live = ART_FALSE;
- }
- else
- left_live = ART_FALSE;
- }
- else if (right_live)
- {
- if (x >= right->x[(right->flags & ART_ACTIVE_FLAGS_BNEG) ^ 1] &&
- /* It may be that one of these conjuncts turns out to be always
- true. We test both anyway, to be defensive. */
- y != right->y0 && y < right->y1)
- {
- d = x_max * right->a + y * right->b + right->c;
- if (d > -EPSILON_A)
- {
- new_x = art_svp_intersect_break (ctx, right, x_max, y,
- ART_BREAK_RIGHT);
- if (new_x < x_min)
- {
- x_min = new_x;
- left_live = (left != NULL);
- }
- else if (new_x >= x_max)
- x_max = new_x;
- right = right->right;
- right_live = (right != NULL);
- }
- else
- right_live = ART_FALSE;
- }
- else
- right_live = ART_FALSE;
- }
- }
-
- /* Ascending order is guaranteed by break_flags. Thus, we don't need
- to actually fix up non-ascending pairs. */
-
- /* Now, (left, right) defines an interval of segments broken. Sort
- into ascending x order. */
- test = left == NULL ? ctx->active_head : left->right;
- result = left;
- if (test != NULL && test != right)
- {
- if (y == test->y0)
- x_test = test->x[0];
- else /* assert y == test->y1, I think */
- x_test = test->x[1];
- for (;;)
- {
- if (x_test <= x)
- result = test;
- test = test->right;
- if (test == right)
- break;
- new_x = x_test;
- if (new_x < x_test)
- {
- art_warn ("art_svp_intersect_add_point: non-ascending x\n");
- }
- x_test = new_x;
- }
- }
- return result;
-}
-
-static void
-art_svp_intersect_swap_active (ArtIntersectCtx *ctx,
- ArtActiveSeg *left_seg, ArtActiveSeg *right_seg)
-{
- right_seg->left = left_seg->left;
- if (right_seg->left != NULL)
- right_seg->left->right = right_seg;
- else
- ctx->active_head = right_seg;
- left_seg->right = right_seg->right;
- if (left_seg->right != NULL)
- left_seg->right->left = left_seg;
- left_seg->left = right_seg;
- right_seg->right = left_seg;
-}
-
-/**
- * art_svp_intersect_test_cross: Test crossing of a pair of active segments.
- * @ctx: Intersector context.
- * @left_seg: Left segment of the pair.
- * @right_seg: Right segment of the pair.
- * @break_flags: Flags indicating whether to break neighbors.
- *
- * Tests crossing of @left_seg and @right_seg. If there is a crossing,
- * inserts the intersection point into both segments.
- *
- * Return value: True if the intersection took place at the current
- * scan line, indicating further iteration is needed.
- **/
-static art_boolean
-art_svp_intersect_test_cross (ArtIntersectCtx *ctx,
- ArtActiveSeg *left_seg, ArtActiveSeg *right_seg,
- ArtBreakFlags break_flags)
-{
- gdouble left_x0, left_y0, left_x1;
- gdouble left_y1 = left_seg->y1;
- gdouble right_y1 = right_seg->y1;
- gdouble d;
-
- const ArtSVPSeg *in_seg;
- gint in_curs;
- gdouble d0, d1, t;
- gdouble x, y; /* intersection point */
-
- if (left_seg->y0 == right_seg->y0 && left_seg->x[0] == right_seg->x[0])
- {
- /* Top points of left and right segments coincide. This case
- feels like a bit of duplication - we may want to merge it
- with the cases below. However, this way, we're sure that this
- logic makes only localized changes. */
-
- if (left_y1 < right_y1)
- {
- /* Test left (x1, y1) against right segment */
- gdouble left_x1 = left_seg->x[1];
-
- if (left_x1 <
- right_seg->x[(right_seg->flags & ART_ACTIVE_FLAGS_BNEG) ^ 1] ||
- left_y1 == right_seg->y0)
- return ART_FALSE;
- d = left_x1 * right_seg->a + left_y1 * right_seg->b + right_seg->c;
- if (d < -EPSILON_A)
- return ART_FALSE;
- else if (d < EPSILON_A)
- {
- /* I'm unsure about the break flags here. */
- gdouble right_x1 = art_svp_intersect_break (ctx, right_seg,
- left_x1, left_y1,
- ART_BREAK_RIGHT);
- if (left_x1 <= right_x1)
- return ART_FALSE;
- }
- }
- else if (left_y1 > right_y1)
- {
- /* Test right (x1, y1) against left segment */
- gdouble right_x1 = right_seg->x[1];
-
- if (right_x1 > left_seg->x[left_seg->flags & ART_ACTIVE_FLAGS_BNEG] ||
- right_y1 == left_seg->y0)
- return ART_FALSE;
- d = right_x1 * left_seg->a + right_y1 * left_seg->b + left_seg->c;
- if (d > EPSILON_A)
- return ART_FALSE;
- else if (d > -EPSILON_A)
- {
- /* See above regarding break flags. */
- gdouble left_x1 = art_svp_intersect_break (ctx, left_seg,
- right_x1, right_y1,
- ART_BREAK_LEFT);
- if (left_x1 <= right_x1)
- return ART_FALSE;
- }
- }
- else /* left_y1 == right_y1 */
- {
- gdouble left_x1 = left_seg->x[1];
- gdouble right_x1 = right_seg->x[1];
-
- if (left_x1 <= right_x1)
- return ART_FALSE;
- }
- art_svp_intersect_swap_active (ctx, left_seg, right_seg);
- return ART_TRUE;
- }
-
- if (left_y1 < right_y1)
- {
- /* Test left (x1, y1) against right segment */
- gdouble left_x1 = left_seg->x[1];
-
- if (left_x1 <
- right_seg->x[(right_seg->flags & ART_ACTIVE_FLAGS_BNEG) ^ 1] ||
- left_y1 == right_seg->y0)
- return ART_FALSE;
- d = left_x1 * right_seg->a + left_y1 * right_seg->b + right_seg->c;
- if (d < -EPSILON_A)
- return ART_FALSE;
- else if (d < EPSILON_A)
- {
- gdouble right_x1 = art_svp_intersect_break (ctx, right_seg,
- left_x1, left_y1,
- ART_BREAK_RIGHT);
- if (left_x1 <= right_x1)
- return ART_FALSE;
- }
- }
- else if (left_y1 > right_y1)
- {
- /* Test right (x1, y1) against left segment */
- gdouble right_x1 = right_seg->x[1];
-
- if (right_x1 > left_seg->x[left_seg->flags & ART_ACTIVE_FLAGS_BNEG] ||
- right_y1 == left_seg->y0)
- return ART_FALSE;
- d = right_x1 * left_seg->a + right_y1 * left_seg->b + left_seg->c;
- if (d > EPSILON_A)
- return ART_FALSE;
- else if (d > -EPSILON_A)
- {
- gdouble left_x1 = art_svp_intersect_break (ctx, left_seg,
- right_x1, right_y1,
- ART_BREAK_LEFT);
- if (left_x1 <= right_x1)
- return ART_FALSE;
- }
- }
- else /* left_y1 == right_y1 */
- {
- gdouble left_x1 = left_seg->x[1];
- gdouble right_x1 = right_seg->x[1];
-
- if (left_x1 <= right_x1)
- return ART_FALSE;
- }
-
- /* The segments cross. Find the intersection point. */
-
- in_seg = left_seg->in_seg;
- in_curs = left_seg->in_curs;
- left_x0 = in_seg->points[in_curs - 1].x;
- left_y0 = in_seg->points[in_curs - 1].y;
- left_x1 = in_seg->points[in_curs].x;
- left_y1 = in_seg->points[in_curs].y;
- d0 = left_x0 * right_seg->a + left_y0 * right_seg->b + right_seg->c;
- d1 = left_x1 * right_seg->a + left_y1 * right_seg->b + right_seg->c;
- if (d0 == d1)
- {
- x = left_x0;
- y = left_y0;
- }
- else
- {
- /* Is this division always safe? It could possibly overflow. */
- t = d0 / (d0 - d1);
- if (t <= 0)
- {
- x = left_x0;
- y = left_y0;
- }
- else if (t >= 1)
- {
- x = left_x1;
- y = left_y1;
- }
- else
- {
- x = left_x0 + t * (left_x1 - left_x0);
- y = left_y0 + t * (left_y1 - left_y0);
- }
- }
-
- /* Make sure intersection point is within bounds of right seg. */
- if (y < right_seg->y0)
- {
- x = right_seg->x[0];
- y = right_seg->y0;
- }
- else if (y > right_seg->y1)
- {
- x = right_seg->x[1];
- y = right_seg->y1;
- }
- else if (x < right_seg->x[(right_seg->flags & ART_ACTIVE_FLAGS_BNEG) ^ 1])
- x = right_seg->x[(right_seg->flags & ART_ACTIVE_FLAGS_BNEG) ^ 1];
- else if (x > right_seg->x[right_seg->flags & ART_ACTIVE_FLAGS_BNEG])
- x = right_seg->x[right_seg->flags & ART_ACTIVE_FLAGS_BNEG];
-
- if (y == left_seg->y0)
- {
- if (y != right_seg->y0)
- {
- art_svp_intersect_push_pt (ctx, right_seg, x, y);
- if ((break_flags & ART_BREAK_RIGHT) && right_seg->right != NULL)
- art_svp_intersect_add_point (ctx, x, y, right_seg->right,
- break_flags);
- }
- else
- {
- /* Intersection takes place at current scan line; process
- immediately rather than queueing intersection point into
- priq. */
- ArtActiveSeg *winner, *loser;
-
- /* Choose "most vertical" segement */
- if (left_seg->a > right_seg->a)
- {
- winner = left_seg;
- loser = right_seg;
- }
- else
- {
- winner = right_seg;
- loser = left_seg;
- }
-
- loser->x[0] = winner->x[0];
- loser->horiz_x = loser->x[0];
- loser->horiz_delta_wind += loser->delta_wind;
- winner->horiz_delta_wind -= loser->delta_wind;
-
- art_svp_intersect_swap_active (ctx, left_seg, right_seg);
- return ART_TRUE;
- }
- }
- else if (y == right_seg->y0)
- {
- art_svp_intersect_push_pt (ctx, left_seg, x, y);
- if ((break_flags & ART_BREAK_LEFT) && left_seg->left != NULL)
- art_svp_intersect_add_point (ctx, x, y, left_seg->left,
- break_flags);
- }
- else
- {
- /* Insert the intersection point into both segments. */
- art_svp_intersect_push_pt (ctx, left_seg, x, y);
- art_svp_intersect_push_pt (ctx, right_seg, x, y);
- if ((break_flags & ART_BREAK_LEFT) && left_seg->left != NULL)
- art_svp_intersect_add_point (ctx, x, y, left_seg->left, break_flags);
- if ((break_flags & ART_BREAK_RIGHT) && right_seg->right != NULL)
- art_svp_intersect_add_point (ctx, x, y, right_seg->right, break_flags);
- }
- return ART_FALSE;
-}
-
-/**
- * art_svp_intersect_active_delete: Delete segment from active list.
- * @ctx: Intersection context.
- * @seg: Segment to delete.
- *
- * Deletes @seg from the active list.
- **/
-static /* todo inline */ void
-art_svp_intersect_active_delete (ArtIntersectCtx *ctx, ArtActiveSeg *seg)
-{
- ArtActiveSeg *left = seg->left, *right = seg->right;
-
- if (left != NULL)
- left->right = right;
- else
- ctx->active_head = right;
- if (right != NULL)
- right->left = left;
-}
-
-/**
- * art_svp_intersect_active_free: Free an active segment.
- * @seg: Segment to delete.
- *
- * Frees @seg.
- **/
-static /* todo inline */ void
-art_svp_intersect_active_free (ArtActiveSeg *seg)
-{
- art_free (seg->stack);
- art_free (seg);
-}
-
-/**
- * art_svp_intersect_insert_cross: Test crossings of newly inserted line.
- *
- * Tests @seg against its left and right neighbors for intersections.
- * Precondition: the line in @seg is not purely horizontal.
- **/
-static void
-art_svp_intersect_insert_cross (ArtIntersectCtx *ctx,
- ArtActiveSeg *seg)
-{
- ArtActiveSeg *left = seg, *right = seg;
-
- for (;;)
- {
- if (left != NULL)
- {
- ArtActiveSeg *leftc;
-
- for (leftc = left->left; leftc != NULL; leftc = leftc->left)
- if (!(leftc->flags & ART_ACTIVE_FLAGS_DEL))
- break;
- if (leftc != NULL &&
- art_svp_intersect_test_cross (ctx, leftc, left,
- ART_BREAK_LEFT))
- {
- if (left == right || right == NULL)
- right = left->right;
- }
- else
- {
- left = NULL;
- }
- }
- else if (right != NULL && right->right != NULL)
- {
- ArtActiveSeg *rightc;
-
- for (rightc = right->right; rightc != NULL; rightc = rightc->right)
- if (!(rightc->flags & ART_ACTIVE_FLAGS_DEL))
- break;
- if (rightc != NULL &&
- art_svp_intersect_test_cross (ctx, right, rightc,
- ART_BREAK_RIGHT))
- {
- if (left == right || left == NULL)
- left = right->left;
- }
- else
- {
- right = NULL;
- }
- }
- else
- break;
- }
-}
-
-/**
- * art_svp_intersect_horiz: Add horizontal line segment.
- * @ctx: Intersector context.
- * @seg: Segment on which to add horizontal line.
- * @x0: Old x position.
- * @x1: New x position.
- *
- * Adds a horizontal line from @x0 to @x1, and updates the current
- * location of @seg to @x1.
- **/
-static void
-art_svp_intersect_horiz (ArtIntersectCtx *ctx, ArtActiveSeg *seg,
- gdouble x0, gdouble x1)
-{
- ArtActiveSeg *hs;
-
- if (x0 == x1)
- return;
-
- hs = art_new (ArtActiveSeg, 1);
-
- hs->flags = ART_ACTIVE_FLAGS_DEL | (seg->flags & ART_ACTIVE_FLAGS_OUT);
- if (seg->flags & ART_ACTIVE_FLAGS_OUT)
- {
- ArtSvpWriter *swr = ctx->out;
-
- swr->add_point (swr, seg->seg_id, x0, ctx->y);
- }
- hs->seg_id = seg->seg_id;
- hs->horiz_x = x0;
- hs->horiz_delta_wind = seg->delta_wind;
- hs->stack = NULL;
-
- /* Ideally, the (a, b, c) values will never be read. However, there
- are probably some tests remaining that don't check for _DEL
- before evaluating the line equation. For those, these
- initializations will at least prevent a UMR of the values, which
- can crash on some platforms. */
- hs->a = 0.0;
- hs->b = 0.0;
- hs->c = 0.0;
-
- seg->horiz_delta_wind -= seg->delta_wind;
-
- art_svp_intersect_add_horiz (ctx, hs);
-
- if (x0 > x1)
- {
- ArtActiveSeg *left;
- art_boolean first = ART_TRUE;
-
- for (left = seg->left; left != NULL; left = seg->left)
- {
- gint left_bneg = left->flags & ART_ACTIVE_FLAGS_BNEG;
-
- if (left->x[left_bneg] <= x1)
- break;
- if (left->x[left_bneg ^ 1] <= x1 &&
- x1 * left->a + ctx->y * left->b + left->c >= 0)
- break;
- if (left->y0 != ctx->y && left->y1 != ctx->y)
- {
- art_svp_intersect_break (ctx, left, x1, ctx->y, ART_BREAK_LEFT);
- }
- art_svp_intersect_swap_active (ctx, left, seg);
- if (first && left->right != NULL)
- {
- art_svp_intersect_test_cross (ctx, left, left->right,
- ART_BREAK_RIGHT);
- first = ART_FALSE;
- }
- }
- }
- else
- {
- ArtActiveSeg *right;
- art_boolean first = ART_TRUE;
-
- for (right = seg->right; right != NULL; right = seg->right)
- {
- gint right_bneg = right->flags & ART_ACTIVE_FLAGS_BNEG;
-
- if (right->x[right_bneg ^ 1] >= x1)
- break;
- if (right->x[right_bneg] >= x1 &&
- x1 * right->a + ctx->y * right->b + right->c <= 0)
- break;
- if (right->y0 != ctx->y && right->y1 != ctx->y)
- {
- art_svp_intersect_break (ctx, right, x1, ctx->y,
- ART_BREAK_LEFT);
- }
- art_svp_intersect_swap_active (ctx, seg, right);
- if (first && right->left != NULL)
- {
- art_svp_intersect_test_cross (ctx, right->left, right,
- ART_BREAK_RIGHT);
- first = ART_FALSE;
- }
- }
- }
-
- seg->x[0] = x1;
- seg->x[1] = x1;
- seg->horiz_x = x1;
- seg->flags &= ~ART_ACTIVE_FLAGS_OUT;
-}
-
-/**
- * art_svp_intersect_insert_line: Insert a line into the active list.
- * @ctx: Intersector context.
- * @seg: Segment containing line to insert.
- *
- * Inserts the line into the intersector context, taking care of any
- * intersections, and adding the appropriate horizontal points to the
- * active list.
- **/
-static void
-art_svp_intersect_insert_line (ArtIntersectCtx *ctx, ArtActiveSeg *seg)
-{
- if (seg->y1 == seg->y0)
- {
- art_svp_intersect_horiz (ctx, seg, seg->x[0], seg->x[1]);
- }
- else
- {
- art_svp_intersect_insert_cross (ctx, seg);
- art_svp_intersect_add_horiz (ctx, seg);
- }
-}
-
-static void
-art_svp_intersect_process_intersection (ArtIntersectCtx *ctx,
- ArtActiveSeg *seg)
-{
- gint n_stack = --seg->n_stack;
- seg->x[1] = seg->stack[n_stack - 1].x;
- seg->y1 = seg->stack[n_stack - 1].y;
- seg->x[0] = seg->stack[n_stack].x;
- seg->y0 = seg->stack[n_stack].y;
- seg->horiz_x = seg->x[0];
- art_svp_intersect_insert_line (ctx, seg);
-}
-
-static void
-art_svp_intersect_advance_cursor (ArtIntersectCtx *ctx, ArtActiveSeg *seg,
- ArtPriPoint *pri_pt)
-{
- const ArtSVPSeg *in_seg = seg->in_seg;
- gint in_curs = seg->in_curs;
- ArtSvpWriter *swr = seg->flags & ART_ACTIVE_FLAGS_OUT ? ctx->out : NULL;
-
- if (swr != NULL)
- swr->add_point (swr, seg->seg_id, seg->x[1], seg->y1);
- if (in_curs + 1 == in_seg->n_points)
- {
- ArtActiveSeg *left = seg->left, *right = seg->right;
-
-#if 0
- if (swr != NULL)
- swr->close_segment (swr, seg->seg_id);
- seg->flags &= ~ART_ACTIVE_FLAGS_OUT;
-#endif
- seg->flags |= ART_ACTIVE_FLAGS_DEL;
- art_svp_intersect_add_horiz (ctx, seg);
- art_svp_intersect_active_delete (ctx, seg);
- if (left != NULL && right != NULL)
- art_svp_intersect_test_cross (ctx, left, right,
- ART_BREAK_LEFT | ART_BREAK_RIGHT);
- art_free (pri_pt);
- }
- else
- {
- seg->horiz_x = seg->x[1];
-
- art_svp_intersect_setup_seg (seg, pri_pt);
- art_pri_insert (ctx->pq, pri_pt);
- art_svp_intersect_insert_line (ctx, seg);
- }
-}
-
-static void
-art_svp_intersect_add_seg (ArtIntersectCtx *ctx, const ArtSVPSeg *in_seg)
-{
- ArtActiveSeg *seg = art_new (ArtActiveSeg, 1);
- ArtActiveSeg *test;
- gdouble x0, y0;
- ArtActiveSeg *beg_range;
- ArtActiveSeg *last = NULL;
- ArtActiveSeg *left, *right;
- ArtPriPoint *pri_pt = art_new (ArtPriPoint, 1);
-
- seg->flags = 0;
- seg->in_seg = in_seg;
- seg->in_curs = 0;
-
- seg->n_stack_max = 4;
- seg->stack = art_new (ArtPoint, seg->n_stack_max);
-
- seg->horiz_delta_wind = 0;
-
- seg->wind_left = 0;
-
- pri_pt->user_data = seg;
- art_svp_intersect_setup_seg (seg, pri_pt);
- art_pri_insert (ctx->pq, pri_pt);
-
- /* Find insertion place for new segment */
- /* This is currently a left-to-right scan, but should be replaced
- with a binary search as soon as it's validated. */
-
- x0 = in_seg->points[0].x;
- y0 = in_seg->points[0].y;
- beg_range = NULL;
- for (test = ctx->active_head; test != NULL; test = test->right)
- {
- gdouble d;
- gint test_bneg = test->flags & ART_ACTIVE_FLAGS_BNEG;
-
- if (x0 < test->x[test_bneg])
- {
- if (x0 < test->x[test_bneg ^ 1])
- break;
- d = x0 * test->a + y0 * test->b + test->c;
- if (d < 0)
- break;
- }
- last = test;
- }
-
- left = art_svp_intersect_add_point (ctx, x0, y0, last,
- ART_BREAK_LEFT | ART_BREAK_RIGHT);
- seg->left = left;
- if (left == NULL)
- {
- right = ctx->active_head;
- ctx->active_head = seg;
- }
- else
- {
- right = left->right;
- left->right = seg;
- }
- seg->right = right;
- if (right != NULL)
- right->left = seg;
-
- seg->delta_wind = in_seg->dir ? 1 : -1;
- seg->horiz_x = x0;
-
- art_svp_intersect_insert_line (ctx, seg);
-}
-
-/**
- * art_svp_intersect_horiz_commit: Commit points in horiz list to output.
- * @ctx: Intersection context.
- *
- * The main function of the horizontal commit is to output new
- * points to the output writer.
- *
- * This "commit" pass is also where winding numbers are assigned,
- * because doing it here provides much greater tolerance for inputs
- * which are not in strict SVP order.
- *
- * Each cluster in the horiz_list contains both segments that are in
- * the active list (ART_ACTIVE_FLAGS_DEL is false) and that are not,
- * and are scheduled to be deleted (ART_ACTIVE_FLAGS_DEL is true). We
- * need to deal with both.
- **/
-static void
-art_svp_intersect_horiz_commit (ArtIntersectCtx *ctx)
-{
- ArtActiveSeg *seg;
- gint winding_number = 0; /* initialization just to avoid warning */
- gint horiz_wind = 0;
- gdouble last_x = 0; /* initialization just to avoid warning */
-
- /* Output points to svp writer. */
- for (seg = ctx->horiz_first; seg != NULL;)
- {
- /* Find a cluster with common horiz_x, */
- ArtActiveSeg *curs;
- gdouble x = seg->horiz_x;
-
- /* Generate any horizontal segments. */
- if (horiz_wind != 0)
- {
- ArtSvpWriter *swr = ctx->out;
- gint seg_id;
-
- seg_id = swr->add_segment (swr, winding_number, horiz_wind,
- last_x, ctx->y);
- swr->add_point (swr, seg_id, x, ctx->y);
- swr->close_segment (swr, seg_id);
- }
-
- /* Find first active segment in cluster. */
-
- for (curs = seg; curs != NULL && curs->horiz_x == x;
- curs = curs->horiz_right)
- if (!(curs->flags & ART_ACTIVE_FLAGS_DEL))
- break;
-
- if (curs != NULL && curs->horiz_x == x)
- {
- /* There exists at least one active segment in this cluster. */
-
- /* Find beginning of cluster. */
- for (; curs->left != NULL; curs = curs->left)
- if (curs->left->horiz_x != x)
- break;
-
- if (curs->left != NULL)
- winding_number = curs->left->wind_left + curs->left->delta_wind;
- else
- winding_number = 0;
-
- do
- {
- if (!(curs->flags & ART_ACTIVE_FLAGS_OUT) ||
- curs->wind_left != winding_number)
- {
- ArtSvpWriter *swr = ctx->out;
-
- if (curs->flags & ART_ACTIVE_FLAGS_OUT)
- {
- swr->add_point (swr, curs->seg_id,
- curs->horiz_x, ctx->y);
- swr->close_segment (swr, curs->seg_id);
- }
-
- curs->seg_id = swr->add_segment (swr, winding_number,
- curs->delta_wind,
- x, ctx->y);
- curs->flags |= ART_ACTIVE_FLAGS_OUT;
- }
- curs->wind_left = winding_number;
- winding_number += curs->delta_wind;
- curs = curs->right;
- }
- while (curs != NULL && curs->horiz_x == x);
- }
-
- /* Skip past cluster. */
- do
- {
- ArtActiveSeg *next = seg->horiz_right;
-
- seg->flags &= ~ART_ACTIVE_FLAGS_IN_HORIZ;
- horiz_wind += seg->horiz_delta_wind;
- seg->horiz_delta_wind = 0;
- if (seg->flags & ART_ACTIVE_FLAGS_DEL)
- {
- if (seg->flags & ART_ACTIVE_FLAGS_OUT)
- {
- ArtSvpWriter *swr = ctx->out;
- swr->close_segment (swr, seg->seg_id);
- }
- art_svp_intersect_active_free (seg);
- }
- seg = next;
- }
- while (seg != NULL && seg->horiz_x == x);
-
- last_x = x;
- }
- ctx->horiz_first = NULL;
- ctx->horiz_last = NULL;
-}
-
-#ifdef SANITYCHECK
-static void
-art_svp_intersect_sanitycheck (ArtIntersectCtx *ctx)
-{
- ArtActiveSeg *seg;
- ArtActiveSeg *last = NULL;
- gdouble d;
-
- for (seg = ctx->active_head; seg != NULL; seg = seg->right)
- {
- if (seg->left != last)
- {
- art_warn ("*** art_svp_intersect_sanitycheck: last=%lx, seg->left=%lx\n",
- (unsigned long)last, (unsigned long)seg->left);
- }
- if (last != NULL)
- {
- /* pairwise compare with previous seg */
-
- /* First the top. */
- if (last->y0 < seg->y0)
- {
- }
- else
- {
- }
-
- /* Then the bottom. */
- if (last->y1 < seg->y1)
- {
- if (!((last->x[1] <
- seg->x[(seg->flags & ART_ACTIVE_FLAGS_BNEG) ^ 1]) ||
- last->y1 == seg->y0))
- {
- d = last->x[1] * seg->a + last->y1 * seg->b + seg->c;
- if (d >= -EPSILON_A)
- art_warn ("*** bottom (%g, %g) of %lx is not clear of %lx to right (d = %g)\n",
- last->x[1], last->y1, (unsigned long) last,
- (unsigned long) seg, d);
- }
- }
- else if (last->y1 > seg->y1)
-
- {
- if (!((seg->x[1] >
- last->x[last->flags & ART_ACTIVE_FLAGS_BNEG]) ||
- seg->y1 == last->y0))
- {
- d = seg->x[1] * last->a + seg->y1 * last->b + last->c;
- if (d <= EPSILON_A)
- art_warn ("*** bottom (%g, %g) of %lx is not clear of %lx to left (d = %g)\n",
- seg->x[1], seg->y1, (unsigned long) seg,
- (unsigned long) last, d);
- }
- }
- else
- {
- if (last->x[1] > seg->x[1])
- art_warn ("*** bottoms (%g, %g) of %lx and (%g, %g) of %lx out of order\n",
- last->x[1], last->y1, (unsigned long)last,
- seg->x[1], seg->y1, (unsigned long)seg);
- }
- }
- last = seg;
- }
-}
-#endif
-
-void
-art_svp_intersector (const ArtSVP *in, ArtSvpWriter *out)
-{
- ArtIntersectCtx *ctx;
- ArtPriQ *pq;
- ArtPriPoint *first_point;
-
- if (in->n_segs == 0)
- return;
-
- ctx = art_new (ArtIntersectCtx, 1);
- ctx->in = in;
- ctx->out = out;
- pq = art_pri_new ();
- ctx->pq = pq;
-
- ctx->active_head = NULL;
-
- ctx->horiz_first = NULL;
- ctx->horiz_last = NULL;
-
- ctx->in_curs = 0;
- first_point = art_new (ArtPriPoint, 1);
- first_point->x = in->segs[0].points[0].x;
- first_point->y = in->segs[0].points[0].y;
- first_point->user_data = NULL;
- ctx->y = first_point->y;
- art_pri_insert (pq, first_point);
-
- while (!art_pri_empty (pq))
- {
- ArtPriPoint *pri_point = art_pri_choose (pq);
- ArtActiveSeg *seg = (ArtActiveSeg *)pri_point->user_data;
-
-#ifdef SANITYCHECK
- art_svp_intersect_sanitycheck (ctx);
-#endif
-
- if (ctx->y != pri_point->y)
- {
- art_svp_intersect_horiz_commit (ctx);
- ctx->y = pri_point->y;
- }
-
- if (seg == NULL)
- {
- /* Insert new segment from input */
- const ArtSVPSeg *in_seg = &in->segs[ctx->in_curs++];
- art_svp_intersect_add_seg (ctx, in_seg);
- if (ctx->in_curs < in->n_segs)
- {
- const ArtSVPSeg *next_seg = &in->segs[ctx->in_curs];
- pri_point->x = next_seg->points[0].x;
- pri_point->y = next_seg->points[0].y;
- /* user_data is already NULL */
- art_pri_insert (pq, pri_point);
- }
- else
- art_free (pri_point);
- }
- else
- {
- gint n_stack = seg->n_stack;
-
- if (n_stack > 1)
- {
- art_svp_intersect_process_intersection (ctx, seg);
- art_free (pri_point);
- }
- else
- {
- art_svp_intersect_advance_cursor (ctx, seg, pri_point);
- }
- }
- }
-
- art_svp_intersect_horiz_commit (ctx);
-
- art_pri_free (pq);
- art_free (ctx);
-}
-
-#endif /* not TEST_PRIQ */
diff --git a/libart_lgpl/art_svp_intersect.h b/libart_lgpl/art_svp_intersect.h
deleted file mode 100644
index b585ed20f5..0000000000
--- a/libart_lgpl/art_svp_intersect.h
+++ /dev/null
@@ -1,68 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 2001 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_SVP_INTERSECT_H__
-#define __ART_SVP_INTERSECT_H__
-
-/* The funky new SVP intersector. */
-
-#include <libart_lgpl/art_svp.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-#ifndef ART_WIND_RULE_DEFINED
-#define ART_WIND_RULE_DEFINED
-typedef enum {
- ART_WIND_RULE_NONZERO,
- ART_WIND_RULE_INTERSECT,
- ART_WIND_RULE_ODDEVEN,
- ART_WIND_RULE_POSITIVE
-} ArtWindRule;
-#endif
-
-typedef struct _ArtSvpWriter ArtSvpWriter;
-
-struct _ArtSvpWriter {
- gint (*add_segment) (ArtSvpWriter *self, gint wind_left, gint delta_wind,
- gdouble x, gdouble y);
- void (*add_point) (ArtSvpWriter *self, gint seg_id, gdouble x, gdouble y);
- void (*close_segment) (ArtSvpWriter *self, gint seg_id);
-};
-
-ArtSvpWriter *
-art_svp_writer_rewind_new (ArtWindRule rule);
-
-ArtSVP *
-art_svp_writer_rewind_reap (ArtSvpWriter *self);
-
-#if 0 /* XXX already declared in art_svp.h */
-gint
-art_svp_seg_compare (gconstpointer s1, gconstpointer s2);
-#endif
-
-void
-art_svp_intersector (const ArtSVP *in, ArtSvpWriter *out);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __ART_SVP_INTERSECT_H__ */
diff --git a/libart_lgpl/art_svp_ops.c b/libart_lgpl/art_svp_ops.c
deleted file mode 100644
index 72d360282a..0000000000
--- a/libart_lgpl/art_svp_ops.c
+++ /dev/null
@@ -1,168 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998-2000 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/* Vector path set operations, over sorted vpaths. */
-
-#include "config.h"
-#include "art_svp_ops.h"
-
-#include "art_misc.h"
-
-#include "art_svp.h"
-#include "art_vpath.h"
-#include "art_svp_vpath.h"
-#include "art_svp.h"
-#ifdef ART_USE_NEW_INTERSECTOR
-#include "art_svp_intersect.h"
-#else
-#include "art_svp_wind.h"
-#endif
-#include "art_vpath_svp.h"
-
-/* Merge the segments of the two svp's. The resulting svp will share
- segments with args passed in, so be super-careful with the
- allocation. */
-/**
- * art_svp_merge: Merge the segments of two svp's.
- * @svp1: One svp to merge.
- * @svp2: The other svp to merge.
- *
- * Merges the segments of two SVP's into a new one. The resulting
- * #ArtSVP data structure will share the segments of the argument
- * svp's, so it is probably a good idea to free it shallowly,
- * especially if the arguments will be freed with art_svp_free().
- *
- * Return value: The merged #ArtSVP.
- **/
-static ArtSVP *
-art_svp_merge (const ArtSVP *svp1, const ArtSVP *svp2)
-{
- ArtSVP *svp_new;
- gint ix;
- gint ix1, ix2;
-
- svp_new = (ArtSVP *)art_alloc (sizeof (ArtSVP) +
- (svp1->n_segs + svp2->n_segs - 1) *
- sizeof (ArtSVPSeg));
- ix1 = 0;
- ix2 = 0;
- for (ix = 0; ix < svp1->n_segs + svp2->n_segs; ix++)
- {
- if (ix1 < svp1->n_segs &&
- (ix2 == svp2->n_segs ||
- art_svp_seg_compare (&svp1->segs[ix1], &svp2->segs[ix2]) < 1))
- svp_new->segs[ix] = svp1->segs[ix1++];
- else
- svp_new->segs[ix] = svp2->segs[ix2++];
- }
-
- svp_new->n_segs = ix;
- return svp_new;
-}
-
-#ifndef ART_USE_NEW_INTERSECTOR
-static ArtSVP *
-art_svp_merge_perturbed (const ArtSVP *svp1, const ArtSVP *svp2)
-{
- ArtVpath *vpath1, *vpath2;
- ArtVpath *vpath1_p, *vpath2_p;
- ArtSVP *svp1_p, *svp2_p;
- ArtSVP *svp_new;
-
- vpath1 = art_vpath_from_svp (svp1);
- vpath1_p = art_vpath_perturb (vpath1);
- art_free (vpath1);
- svp1_p = art_svp_from_vpath (vpath1_p);
- art_free (vpath1_p);
-
- vpath2 = art_vpath_from_svp (svp2);
- vpath2_p = art_vpath_perturb (vpath2);
- art_free (vpath2);
- svp2_p = art_svp_from_vpath (vpath2_p);
- art_free (vpath2_p);
-
- svp_new = art_svp_merge (svp1_p, svp2_p);
- art_free (svp1_p);
- art_free (svp2_p);
-
- return svp_new;
-}
-#endif
-
-/* Compute the intersection of two vector paths.
-
- Status of this routine:
-
- Basic correctness: Seems to work.
-
- Numerical stability: We cheat (adding random perturbation). Thus,
- it seems very likely that no numerical stability problems will be
- seen in practice.
-
- Speed: Would be better if we didn't go to unsorted vector path
- and back to add the perturbation.
-
- Precision: The perturbation fuzzes the coordinates slightly. In
- cases of butting segments, razor thin long isolated segments may
- appear.
-
-*/
-
-/**
- * art_svp_intersect: Compute the intersection of two sorted vector paths.
- * @svp1: One sorted vector path.
- * @svp2: The other sorted vector path.
- *
- * Computes the intersection of the two argument svp's. Given two
- * svp's with winding numbers of 0 and 1 everywhere, the resulting
- * winding number will be 1 where both of the argument svp's has a
- * winding number 1, 0 otherwise. The result is newly allocated.
- *
- * Currently, this routine has accuracy problems pending the
- * implementation of the new intersector.
- *
- * Return value: The intersection of @svp1 and @svp2.
- **/
-ArtSVP *
-art_svp_intersect (const ArtSVP *svp1, const ArtSVP *svp2)
-{
-#ifdef ART_USE_NEW_INTERSECTOR
- ArtSVP *svp3, *svp_new;
- ArtSvpWriter *swr;
-
- svp3 = art_svp_merge (svp1, svp2);
- swr = art_svp_writer_rewind_new (ART_WIND_RULE_INTERSECT);
- art_svp_intersector (svp3, swr);
- svp_new = art_svp_writer_rewind_reap (swr);
- art_free (svp3); /* shallow free because svp3 contains shared segments */
-
- return svp_new;
-#else
- ArtSVP *svp3, *svp4, *svp_new;
-
- svp3 = art_svp_merge_perturbed (svp1, svp2);
- svp4 = art_svp_uncross (svp3);
- art_svp_free (svp3);
-
- svp_new = art_svp_rewind_uncrossed (svp4, ART_WIND_RULE_INTERSECT);
- art_svp_free (svp4);
- return svp_new;
-#endif
-}
-
diff --git a/libart_lgpl/art_svp_ops.h b/libart_lgpl/art_svp_ops.h
deleted file mode 100644
index 8f150c28dc..0000000000
--- a/libart_lgpl/art_svp_ops.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_SVP_OPS_H__
-#define __ART_SVP_OPS_H__
-
-#include <libart_lgpl/art_svp.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-/* Vector path set operations, over sorted vpaths. */
-
-ArtSVP *art_svp_intersect (const ArtSVP *svp1, const ArtSVP *svp2);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __ART_SVP_OPS_H__ */
diff --git a/libart_lgpl/art_svp_point.c b/libart_lgpl/art_svp_point.c
deleted file mode 100644
index 8278bca55e..0000000000
--- a/libart_lgpl/art_svp_point.c
+++ /dev/null
@@ -1,144 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1999 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#include "config.h"
-#include "art_svp_point.h"
-
-#include <math.h>
-#include "art_misc.h"
-
-#include "art_svp.h"
-
-/* Determine whether a point is inside, or near, an svp. */
-
-/* return winding number of point wrt svp */
-/**
- * art_svp_point_wind: Determine winding number of a point with respect to svp.
- * @svp: The svp.
- * @x: The X coordinate of the point.
- * @y: The Y coordinate of the point.
- *
- * Determine the winding number of the point @x, @y with respect to @svp.
- *
- * Return value: the winding number.
- **/
-gint
-art_svp_point_wind (ArtSVP *svp, gdouble x, gdouble y)
-{
- gint i, j;
- gint wind = 0;
-
- for (i = 0; i < svp->n_segs; i++)
- {
- ArtSVPSeg *seg = &svp->segs[i];
-
- if (seg->bbox.y0 > y)
- break;
-
- if (seg->bbox.y1 > y)
- {
- if (seg->bbox.x1 < x)
- wind += seg->dir ? 1 : -1;
- else if (seg->bbox.x0 <= x)
- {
- gdouble x0, y0, x1, y1, dx, dy;
-
- for (j = 0; j < seg->n_points - 1; j++)
- {
- if (seg->points[j + 1].y > y)
- break;
- }
- x0 = seg->points[j].x;
- y0 = seg->points[j].y;
- x1 = seg->points[j + 1].x;
- y1 = seg->points[j + 1].y;
-
- dx = x1 - x0;
- dy = y1 - y0;
- if ((x - x0) * dy > (y - y0) * dx)
- wind += seg->dir ? 1 : -1;
- }
- }
- }
-
- return wind;
-}
-
-/**
- * art_svp_point_dist: Determine distance between point and svp.
- * @svp: The svp.
- * @x: The X coordinate of the point.
- * @y: The Y coordinate of the point.
- *
- * Determines the distance of the point @x, @y to the closest edge in
- * @svp. A large number is returned if @svp is empty.
- *
- * Return value: the distance.
- **/
-gdouble
-art_svp_point_dist (ArtSVP *svp, gdouble x, gdouble y)
-{
- gint i, j;
- gdouble dist_sq;
- gdouble best_sq = -1;
-
- for (i = 0; i < svp->n_segs; i++)
- {
- ArtSVPSeg *seg = &svp->segs[i];
- for (j = 0; j < seg->n_points - 1; j++)
- {
- gdouble x0 = seg->points[j].x;
- gdouble y0 = seg->points[j].y;
- gdouble x1 = seg->points[j + 1].x;
- gdouble y1 = seg->points[j + 1].y;
-
- gdouble dx = x1 - x0;
- gdouble dy = y1 - y0;
-
- gdouble dxx0 = x - x0;
- gdouble dyy0 = y - y0;
-
- gdouble dot = dxx0 * dx + dyy0 * dy;
-
- if (dot < 0)
- dist_sq = dxx0 * dxx0 + dyy0 * dyy0;
- else
- {
- gdouble rr = dx * dx + dy * dy;
-
- if (dot > rr)
- dist_sq = (x - x1) * (x - x1) + (y - y1) * (y - y1);
- else
- {
- gdouble perp = (y - y0) * dx - (x - x0) * dy;
-
- dist_sq = perp * perp / rr;
- }
- }
- if (best_sq < 0 || dist_sq < best_sq)
- best_sq = dist_sq;
- }
- }
-
- if (best_sq >= 0)
- return sqrt (best_sq);
- else
- return 1e12;
-}
-
diff --git a/libart_lgpl/art_svp_point.h b/libart_lgpl/art_svp_point.h
deleted file mode 100644
index 53faaba37e..0000000000
--- a/libart_lgpl/art_svp_point.h
+++ /dev/null
@@ -1,42 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1999 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_SVP_POINT_H__
-#define __ART_SVP_POINT_H__
-
-/* Determine whether a point is inside, or near, an svp. */
-
-#include <libart_lgpl/art_svp.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-gint
-art_svp_point_wind (ArtSVP *svp, gdouble x, gdouble y);
-
-gdouble
-art_svp_point_dist (ArtSVP *svp, gdouble x, gdouble y);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __ART_SVP_H__ */
-
diff --git a/libart_lgpl/art_svp_render_aa.c b/libart_lgpl/art_svp_render_aa.c
deleted file mode 100644
index a6efa4ae0c..0000000000
--- a/libart_lgpl/art_svp_render_aa.c
+++ /dev/null
@@ -1,462 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998-2000 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/* The spiffy antialiased renderer for sorted vector paths. */
-
-#include "config.h"
-#include "art_svp_render_aa.h"
-
-#include <math.h>
-#include <string.h> /* for memmove */
-#include "art_misc.h"
-
-#include "art_rect.h"
-#include "art_svp.h"
-
-#include <stdio.h>
-
-typedef gdouble artfloat;
-
-struct _ArtSVPRenderAAIter {
- const ArtSVP *svp;
- gint x0, x1;
- gint y;
- gint seg_ix;
-
- gint *active_segs;
- gint n_active_segs;
- gint *cursor;
- artfloat *seg_x;
- artfloat *seg_dx;
-
- ArtSVPRenderAAStep *steps;
-};
-
-static void
-art_svp_render_insert_active (gint i, gint *active_segs, gint n_active_segs,
- artfloat *seg_x, artfloat *seg_dx)
-{
- gint j;
- artfloat x;
- gint tmp1, tmp2;
-
- /* this is a cheap hack to get ^'s sorted correctly */
- x = seg_x[i] + 0.001 * seg_dx[i];
- for (j = 0; j < n_active_segs && seg_x[active_segs[j]] < x; j++);
-
- tmp1 = i;
- while (j < n_active_segs)
- {
- tmp2 = active_segs[j];
- active_segs[j] = tmp1;
- tmp1 = tmp2;
- j++;
- }
- active_segs[j] = tmp1;
-}
-
-static void
-art_svp_render_delete_active (gint *active_segs, gint j, gint n_active_segs)
-{
- gint k;
-
- for (k = j; k < n_active_segs; k++)
- active_segs[k] = active_segs[k + 1];
-}
-
-#define EPSILON 1e-6
-
-/* Render the sorted vector path in the given rectangle, antialiased.
-
- This interface uses a callback for the actual pixel rendering. The
- callback is called y1 - y0 times (once for each scan line). The y
- coordinate is given as an argument for convenience (it could be
- stored in the callback's private data and incremented on each
- call).
-
- The rendered polygon is represented in a semi-runlength format: a
- start value and a sequence of "steps". Each step has an x
- coordinate and a value delta. The resulting value at position x is
- equal to the sum of the start value and all step delta values for
- which the step x coordinate is less than or equal to x. An
- efficient algorithm will traverse the steps left to right, keeping
- a running sum.
-
- All x coordinates in the steps are guaranteed to be x0 <= x < x1.
- (This guarantee is a change from the gfonted vpaar renderer, and is
- designed to simplify the callback).
-
- There is now a further guarantee that no two steps will have the
- same x value. This may allow for further speedup and simplification
- of renderers.
-
- The value 0x8000 represents 0% coverage by the polygon, while
- 0xff8000 represents 100% coverage. This format is designed so that
- >> 16 results in a standard 0x00..0xff value range, with nice
- rounding.
-
- Status of this routine:
-
- Basic correctness: OK
-
- Numerical stability: pretty good, although probably not
- bulletproof.
-
- Speed: Needs more aggressive culling of bounding boxes. Can
- probably speed up the[x0,x1) clipping of step values. Can do more
- of the step calculation in fixed point.
-
- Precision: No known problems, although it should be tested
- thoroughly, especially for symmetry.
-
-*/
-
-ArtSVPRenderAAIter *
-art_svp_render_aa_iter (const ArtSVP *svp,
- gint x0, gint y0, gint x1, gint y1)
-{
- ArtSVPRenderAAIter *iter = art_new (ArtSVPRenderAAIter, 1);
-
- iter->svp = svp;
- iter->y = y0;
- iter->x0 = x0;
- iter->x1 = x1;
- iter->seg_ix = 0;
-
- iter->active_segs = art_new (int, svp->n_segs);
- iter->cursor = art_new (int, svp->n_segs);
- iter->seg_x = art_new (artfloat, svp->n_segs);
- iter->seg_dx = art_new (artfloat, svp->n_segs);
- iter->steps = art_new (ArtSVPRenderAAStep, x1 - x0);
- iter->n_active_segs = 0;
-
- return iter;
-}
-
-#define ADD_STEP(xpos, xdelta) \
- /* stereotype code fragment for adding a step */ \
- if (n_steps == 0 || steps[n_steps - 1].x < xpos) \
- { \
- sx = n_steps; \
- steps[sx].x = xpos; \
- steps[sx].delta = xdelta; \
- n_steps++; \
- } \
- else \
- { \
- for (sx = n_steps; sx > 0; sx--) \
- { \
- if (steps[sx - 1].x == xpos) \
- { \
- steps[sx - 1].delta += xdelta; \
- sx = n_steps; \
- break; \
- } \
- else if (steps[sx - 1].x < xpos) \
- { \
- break; \
- } \
- } \
- if (sx < n_steps) \
- { \
- memmove (&steps[sx + 1], &steps[sx], \
- (n_steps - sx) * sizeof (steps[0])); \
- steps[sx].x = xpos; \
- steps[sx].delta = xdelta; \
- n_steps++; \
- } \
- }
-
-void
-art_svp_render_aa_iter_step (ArtSVPRenderAAIter *iter, gint *p_start,
- ArtSVPRenderAAStep **p_steps, gint *p_n_steps)
-{
- const ArtSVP *svp = iter->svp;
- gint *active_segs = iter->active_segs;
- gint n_active_segs = iter->n_active_segs;
- gint *cursor = iter->cursor;
- artfloat *seg_x = iter->seg_x;
- artfloat *seg_dx = iter->seg_dx;
- gint i = iter->seg_ix;
- gint j;
- gint x0 = iter->x0;
- gint x1 = iter->x1;
- gint y = iter->y;
- gint seg_index;
-
- gint x;
- ArtSVPRenderAAStep *steps = iter->steps;
- gint n_steps;
- artfloat y_top, y_bot;
- artfloat x_top, x_bot;
- artfloat x_min, x_max;
- gint ix_min, ix_max;
- artfloat delta; /* delta should be gint too? */
- gint last, this;
- gint xdelta;
- artfloat rslope, drslope;
- gint start;
- const ArtSVPSeg *seg;
- gint curs;
- artfloat dy;
-
- gint sx;
-
- /* insert new active segments */
- for (; i < svp->n_segs && svp->segs[i].bbox.y0 < y + 1; i++)
- {
- if (svp->segs[i].bbox.y1 > y &&
- svp->segs[i].bbox.x0 < x1)
- {
- seg = &svp->segs[i];
- /* move cursor to topmost vector which overlaps [y,y+1) */
- for (curs = 0; seg->points[curs + 1].y < y; curs++);
- cursor[i] = curs;
- dy = seg->points[curs + 1].y - seg->points[curs].y;
- if (fabs (dy) >= EPSILON)
- seg_dx[i] = (seg->points[curs + 1].x - seg->points[curs].x) /
- dy;
- else
- seg_dx[i] = 1e12;
- seg_x[i] = seg->points[curs].x +
- (y - seg->points[curs].y) * seg_dx[i];
- art_svp_render_insert_active (i, active_segs, n_active_segs++,
- seg_x, seg_dx);
- }
- }
-
- n_steps = 0;
-
- /* render the runlengths, advancing and deleting as we go */
- start = 0x8000;
-
- for (j = 0; j < n_active_segs; j++)
- {
- seg_index = active_segs[j];
- seg = &svp->segs[seg_index];
- curs = cursor[seg_index];
- while (curs != seg->n_points - 1 &&
- seg->points[curs].y < y + 1)
- {
- y_top = y;
- if (y_top < seg->points[curs].y)
- y_top = seg->points[curs].y;
- y_bot = y + 1;
- if (y_bot > seg->points[curs + 1].y)
- y_bot = seg->points[curs + 1].y;
- if (y_top != y_bot) {
- delta = (seg->dir ? 16711680.0 : -16711680.0) *
- (y_bot - y_top);
- x_top = seg_x[seg_index] + (y_top - y) * seg_dx[seg_index];
- x_bot = seg_x[seg_index] + (y_bot - y) * seg_dx[seg_index];
- if (x_top < x_bot)
- {
- x_min = x_top;
- x_max = x_bot;
- }
- else
- {
- x_min = x_bot;
- x_max = x_top;
- }
- ix_min = floor (x_min);
- ix_max = floor (x_max);
- if (ix_min >= x1)
- {
- /* skip; it starts to the right of the render region */
- }
- else if (ix_max < x0)
- /* it ends to the left of the render region */
- start += delta;
- else if (ix_min == ix_max)
- {
- /* case 1, antialias a single pixel */
- xdelta = (ix_min + 1 - (x_min + x_max) * 0.5) * delta;
-
- ADD_STEP (ix_min, xdelta)
-
- if (ix_min + 1 < x1)
- {
- xdelta = delta - xdelta;
-
- ADD_STEP (ix_min + 1, xdelta)
- }
- }
- else
- {
- /* case 2, antialias a run */
- rslope = 1.0 / fabs (seg_dx[seg_index]);
- drslope = delta * rslope;
- last =
- drslope * 0.5 *
- (ix_min + 1 - x_min) * (ix_min + 1 - x_min);
- xdelta = last;
- if (ix_min >= x0)
- {
- ADD_STEP (ix_min, xdelta)
-
- x = ix_min + 1;
- }
- else
- {
- start += last;
- x = x0;
- }
- if (ix_max > x1)
- ix_max = x1;
- for (; x < ix_max; x++)
- {
- this = (seg->dir ? 16711680.0 : -16711680.0) * rslope *
- (x + 0.5 - x_min);
- xdelta = this - last;
- last = this;
-
- ADD_STEP (x, xdelta)
- }
- if (x < x1)
- {
- this =
- delta * (1 - 0.5 *
- (x_max - ix_max) * (x_max - ix_max) *
- rslope);
- xdelta = this - last;
- last = this;
-
- ADD_STEP (x, xdelta)
-
- if (x + 1 < x1)
- {
- xdelta = delta - last;
-
- ADD_STEP (x + 1, xdelta)
- }
- }
- }
- }
- curs++;
- if (curs != seg->n_points - 1 &&
- seg->points[curs].y < y + 1)
- {
- dy = seg->points[curs + 1].y - seg->points[curs].y;
- if (fabs (dy) >= EPSILON)
- seg_dx[seg_index] = (seg->points[curs + 1].x -
- seg->points[curs].x) / dy;
- else
- seg_dx[seg_index] = 1e12;
- seg_x[seg_index] = seg->points[curs].x +
- (y - seg->points[curs].y) * seg_dx[seg_index];
- }
- /* break here, instead of duplicating predicate in while? */
- }
- if (seg->points[curs].y >= y + 1)
- {
- curs--;
- cursor[seg_index] = curs;
- seg_x[seg_index] += seg_dx[seg_index];
- }
- else
- {
- art_svp_render_delete_active (active_segs, j--,
- --n_active_segs);
- }
- }
-
- *p_start = start;
- *p_steps = steps;
- *p_n_steps = n_steps;
-
- iter->seg_ix = i;
- iter->n_active_segs = n_active_segs;
- iter->y++;
-}
-
-void
-art_svp_render_aa_iter_done (ArtSVPRenderAAIter *iter)
-{
- art_free (iter->steps);
-
- art_free (iter->seg_dx);
- art_free (iter->seg_x);
- art_free (iter->cursor);
- art_free (iter->active_segs);
- art_free (iter);
-}
-
-/**
- * art_svp_render_aa: Render SVP antialiased.
- * @svp: The #ArtSVP to render.
- * @x0: Left coordinate of destination rectangle.
- * @y0: Top coordinate of destination rectangle.
- * @x1: Right coordinate of destination rectangle.
- * @y1: Bottom coordinate of destination rectangle.
- * @callback: The callback which actually paints the pixels.
- * @callback_data: Private data for @callback.
- *
- * Renders the sorted vector path in the given rectangle, antialiased.
- *
- * This interface uses a callback for the actual pixel rendering. The
- * callback is called @y1 - @y0 times (once for each scan line). The y
- * coordinate is given as an argument for convenience (it could be
- * stored in the callback's private data and incremented on each
- * call).
- *
- * The rendered polygon is represented in a semi-runlength format: a
- * start value and a sequence of "steps". Each step has an x
- * coordinate and a value delta. The resulting value at position x is
- * equal to the sum of the start value and all step delta values for
- * which the step x coordinate is less than or equal to x. An
- * efficient algorithm will traverse the steps left to right, keeping
- * a running sum.
- *
- * All x coordinates in the steps are guaranteed to be @x0 <= x < @x1.
- * (This guarantee is a change from the gfonted vpaar renderer from
- * which this routine is derived, and is designed to simplify the
- * callback).
- *
- * The value 0x8000 represents 0% coverage by the polygon, while
- * 0xff8000 represents 100% coverage. This format is designed so that
- * >> 16 results in a standard 0x00..0xff value range, with nice
- * rounding.
- *
- **/
-void
-art_svp_render_aa (const ArtSVP *svp,
- gint x0, gint y0, gint x1, gint y1,
- void (*callback) (gpointer callback_data,
- gint y,
- gint start,
- ArtSVPRenderAAStep *steps, gint n_steps),
- gpointer callback_data)
-{
- ArtSVPRenderAAIter *iter;
- gint y;
- gint start;
- ArtSVPRenderAAStep *steps;
- gint n_steps;
-
- iter = art_svp_render_aa_iter (svp, x0, y0, x1, y1);
-
- for (y = y0; y < y1; y++)
- {
- art_svp_render_aa_iter_step (iter, &start, &steps, &n_steps);
- (*callback) (callback_data, y, start, steps, n_steps);
- }
-
- art_svp_render_aa_iter_done (iter);
-}
diff --git a/libart_lgpl/art_svp_render_aa.h b/libart_lgpl/art_svp_render_aa.h
deleted file mode 100644
index 5b5d7ace62..0000000000
--- a/libart_lgpl/art_svp_render_aa.h
+++ /dev/null
@@ -1,63 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_SVP_RENDER_AA_H__
-#define __ART_SVP_RENDER_AA_H__
-
-/* The spiffy antialiased renderer for sorted vector paths. */
-
-#include <libart_lgpl/art_svp.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-typedef struct _ArtSVPRenderAAStep ArtSVPRenderAAStep;
-typedef struct _ArtSVPRenderAAIter ArtSVPRenderAAIter;
-
-struct _ArtSVPRenderAAStep {
- gint x;
- gint delta; /* stored with 16 fractional bits */
-};
-
-ArtSVPRenderAAIter *
-art_svp_render_aa_iter (const ArtSVP *svp,
- gint x0, gint y0, gint x1, gint y1);
-
-void
-art_svp_render_aa_iter_step (ArtSVPRenderAAIter *iter, gint *p_start,
- ArtSVPRenderAAStep **p_steps, gint *p_n_steps);
-
-void
-art_svp_render_aa_iter_done (ArtSVPRenderAAIter *iter);
-
-void
-art_svp_render_aa (const ArtSVP *svp,
- gint x0, gint y0, gint x1, gint y1,
- void (*callback) (gpointer callback_data,
- gint y,
- gint start,
- ArtSVPRenderAAStep *steps, gint n_steps),
- gpointer callback_data);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __ART_SVP_RENDER_AA_H__ */
diff --git a/libart_lgpl/art_svp_vpath.c b/libart_lgpl/art_svp_vpath.c
deleted file mode 100644
index b75bbea6f7..0000000000
--- a/libart_lgpl/art_svp_vpath.c
+++ /dev/null
@@ -1,214 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998-2000 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/* Sort vector paths into sorted vector paths */
-
-#include "config.h"
-#include "art_svp_vpath.h"
-
-#include <stdlib.h>
-#include <math.h>
-
-#include "art_misc.h"
-
-#include "art_vpath.h"
-#include "art_svp.h"
-
-/* reverse a list of points in place */
-static void
-reverse_points (ArtPoint *points, gint n_points)
-{
- gint i;
- ArtPoint tmp_p;
-
- for (i = 0; i < (n_points >> 1); i++)
- {
- tmp_p = points[i];
- points[i] = points[n_points - (i + 1)];
- points[n_points - (i + 1)] = tmp_p;
- }
-}
-
-/**
- * art_svp_from_vpath: Convert a vpath to a sorted vector path.
- * @vpath: #ArtVPath to convert.
- *
- * Converts a vector path into sorted vector path form. The svp form is
- * more efficient for rendering and other vector operations.
- *
- * Basically, the implementation is to traverse the vector path,
- * generating a new segment for each "run" of points in the vector
- * path with monotonically increasing Y values. All the resulting
- * values are then sorted.
- *
- * Note: I'm not sure that the sorting rule is correct with respect
- * to numerical stability issues.
- *
- * Return value: Resulting sorted vector path.
- **/
-ArtSVP *
-art_svp_from_vpath (ArtVpath *vpath)
-{
- gint n_segs, n_segs_max;
- ArtSVP *svp;
- gint dir;
- gint new_dir;
- gint i;
- ArtPoint *points;
- gint n_points, n_points_max;
- gdouble x, y;
- gdouble x_min, x_max;
-
- n_segs = 0;
- n_segs_max = 16;
- svp = (ArtSVP *)art_alloc (sizeof (ArtSVP) +
- (n_segs_max - 1) * sizeof (ArtSVPSeg));
-
- dir = 0;
- n_points = 0;
- n_points_max = 0;
- points = NULL;
- i = 0;
-
- x = y = 0; /* unnecessary, given "first code must not be LINETO" invariant,
- but it makes gcc -Wall -ansi -pedantic happier */
- x_min = x_max = 0; /* same */
-
- while (vpath[i].code != ART_END) {
- if (vpath[i].code == ART_MOVETO || vpath[i].code == ART_MOVETO_OPEN)
- {
- if (points != NULL && n_points >= 2)
- {
- if (n_segs == n_segs_max)
- {
- n_segs_max <<= 1;
- svp = (ArtSVP *)art_realloc (svp, sizeof (ArtSVP) +
- (n_segs_max - 1) *
- sizeof (ArtSVPSeg));
- }
- svp->segs[n_segs].n_points = n_points;
- svp->segs[n_segs].dir = (dir > 0);
- if (dir < 0)
- reverse_points (points, n_points);
- svp->segs[n_segs].points = points;
- svp->segs[n_segs].bbox.x0 = x_min;
- svp->segs[n_segs].bbox.x1 = x_max;
- svp->segs[n_segs].bbox.y0 = points[0].y;
- svp->segs[n_segs].bbox.y1 = points[n_points - 1].y;
- n_segs++;
- points = NULL;
- }
-
- if (points == NULL)
- {
- n_points_max = 4;
- points = art_new (ArtPoint, n_points_max);
- }
-
- n_points = 1;
- points[0].x = x = vpath[i].x;
- points[0].y = y = vpath[i].y;
- x_min = x;
- x_max = x;
- dir = 0;
- }
- else /* must be LINETO */
- {
- new_dir = (vpath[i].y > y ||
- (vpath[i].y == y && vpath[i].x > x)) ? 1 : -1;
- if (dir && dir != new_dir)
- {
- /* new segment */
- x = points[n_points - 1].x;
- y = points[n_points - 1].y;
- if (n_segs == n_segs_max)
- {
- n_segs_max <<= 1;
- svp = (ArtSVP *)art_realloc (svp, sizeof (ArtSVP) +
- (n_segs_max - 1) *
- sizeof (ArtSVPSeg));
- }
- svp->segs[n_segs].n_points = n_points;
- svp->segs[n_segs].dir = (dir > 0);
- if (dir < 0)
- reverse_points (points, n_points);
- svp->segs[n_segs].points = points;
- svp->segs[n_segs].bbox.x0 = x_min;
- svp->segs[n_segs].bbox.x1 = x_max;
- svp->segs[n_segs].bbox.y0 = points[0].y;
- svp->segs[n_segs].bbox.y1 = points[n_points - 1].y;
- n_segs++;
-
- n_points = 1;
- n_points_max = 4;
- points = art_new (ArtPoint, n_points_max);
- points[0].x = x;
- points[0].y = y;
- x_min = x;
- x_max = x;
- }
-
- if (points != NULL)
- {
- if (n_points == n_points_max)
- art_expand (points, ArtPoint, n_points_max);
- points[n_points].x = x = vpath[i].x;
- points[n_points].y = y = vpath[i].y;
- if (x < x_min) x_min = x;
- else if (x > x_max) x_max = x;
- n_points++;
- }
- dir = new_dir;
- }
- i++;
- }
-
- if (points != NULL)
- {
- if (n_points >= 2)
- {
- if (n_segs == n_segs_max)
- {
- n_segs_max <<= 1;
- svp = (ArtSVP *)art_realloc (svp, sizeof (ArtSVP) +
- (n_segs_max - 1) *
- sizeof (ArtSVPSeg));
- }
- svp->segs[n_segs].n_points = n_points;
- svp->segs[n_segs].dir = (dir > 0);
- if (dir < 0)
- reverse_points (points, n_points);
- svp->segs[n_segs].points = points;
- svp->segs[n_segs].bbox.x0 = x_min;
- svp->segs[n_segs].bbox.x1 = x_max;
- svp->segs[n_segs].bbox.y0 = points[0].y;
- svp->segs[n_segs].bbox.y1 = points[n_points - 1].y;
- n_segs++;
- }
- else
- art_free (points);
- }
-
- svp->n_segs = n_segs;
-
- qsort (&svp->segs, n_segs, sizeof (ArtSVPSeg), art_svp_seg_compare);
-
- return svp;
-}
-
diff --git a/libart_lgpl/art_svp_vpath.h b/libart_lgpl/art_svp_vpath.h
deleted file mode 100644
index ae75adcc84..0000000000
--- a/libart_lgpl/art_svp_vpath.h
+++ /dev/null
@@ -1,39 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_SVP_VPATH_H__
-#define __ART_SVP_VPATH_H__
-
-#include <libart_lgpl/art_svp.h>
-#include <libart_lgpl/art_vpath.h>
-
-/* Sort vector paths into sorted vector paths. */
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-ArtSVP *
-art_svp_from_vpath (ArtVpath *vpath);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __ART_SVP_VPATH_H__ */
diff --git a/libart_lgpl/art_svp_vpath_stroke.c b/libart_lgpl/art_svp_vpath_stroke.c
deleted file mode 100644
index c231048103..0000000000
--- a/libart_lgpl/art_svp_vpath_stroke.c
+++ /dev/null
@@ -1,617 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998-2000 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#include "config.h"
-#include "art_svp_vpath_stroke.h"
-
-#include <stdlib.h>
-#include <math.h>
-
-#include "art_misc.h"
-
-#include "art_vpath.h"
-#include "art_svp.h"
-#ifdef ART_USE_NEW_INTERSECTOR
-#include "art_svp_intersect.h"
-#else
-#include "art_svp_wind.h"
-#endif
-#include "art_svp_vpath.h"
-
-#define EPSILON 1e-6
-#define EPSILON_2 1e-12
-
-#define yes_OPTIMIZE_INNER
-
-/* Render an arc segment starting at (xc + x0, yc + y0) to (xc + x1,
- yc + y1), centered at (xc, yc), and with given radius. Both x0^2 +
- y0^2 and x1^2 + y1^2 should be equal to radius^2.
-
- A positive value of radius means curve to the left, negative means
- curve to the right.
-*/
-static void
-art_svp_vpath_stroke_arc (ArtVpath **p_vpath, gint *pn, gint *pn_max,
- gdouble xc, gdouble yc,
- gdouble x0, gdouble y0,
- gdouble x1, gdouble y1,
- gdouble radius,
- gdouble flatness)
-{
- gdouble theta;
- gdouble th_0, th_1;
- gint n_pts;
- gint i;
- gdouble aradius;
-
- aradius = fabs (radius);
- theta = 2 * M_SQRT2 * sqrt (flatness / aradius);
- th_0 = atan2 (y0, x0);
- th_1 = atan2 (y1, x1);
- if (radius > 0)
- {
- /* curve to the left */
- if (th_0 < th_1) th_0 += M_PI * 2;
- n_pts = ceil ((th_0 - th_1) / theta);
- }
- else
- {
- /* curve to the right */
- if (th_1 < th_0) th_1 += M_PI * 2;
- n_pts = ceil ((th_1 - th_0) / theta);
- }
- art_vpath_add_point (p_vpath, pn, pn_max,
- ART_LINETO, xc + x0, yc + y0);
- for (i = 1; i < n_pts; i++)
- {
- theta = th_0 + (th_1 - th_0) * i / n_pts;
- art_vpath_add_point (p_vpath, pn, pn_max,
- ART_LINETO, xc + cos (theta) * aradius,
- yc + sin (theta) * aradius);
- }
- art_vpath_add_point (p_vpath, pn, pn_max,
- ART_LINETO, xc + x1, yc + y1);
-}
-
-/* Assume that forw and rev are at point i0. Bring them to i1,
- joining with the vector i1 - i2.
-
- This used to be true, but isn't now that the stroke_raw code is
- filtering out (near)zero length vectors: {It so happens that all
- invocations of this function maintain the precondition i1 = i0 + 1,
- so we could decrease the number of arguments by one. We haven't
- done that here, though.}
-
- forw is to the line's right and rev is to its left.
-
- Precondition: no zero-length vectors, otherwise a divide by
- zero will happen. */
-static void
-render_seg (ArtVpath **p_forw, gint *pn_forw, gint *pn_forw_max,
- ArtVpath **p_rev, gint *pn_rev, gint *pn_rev_max,
- ArtVpath *vpath, gint i0, gint i1, gint i2,
- ArtPathStrokeJoinType join,
- gdouble line_width, gdouble miter_limit, gdouble flatness)
-{
- gdouble dx0, dy0;
- gdouble dx1, dy1;
- gdouble dlx0, dly0;
- gdouble dlx1, dly1;
- gdouble dmx, dmy;
- gdouble dmr2;
- gdouble scale;
- gdouble cross;
-
- /* The vectors of the lines from i0 to i1 and i1 to i2. */
- dx0 = vpath[i1].x - vpath[i0].x;
- dy0 = vpath[i1].y - vpath[i0].y;
-
- dx1 = vpath[i2].x - vpath[i1].x;
- dy1 = vpath[i2].y - vpath[i1].y;
-
- /* Set dl[xy]0 to the vector from i0 to i1, rotated counterclockwise
- 90 degrees, and scaled to the length of line_width. */
- scale = line_width / sqrt (dx0 * dx0 + dy0 * dy0);
- dlx0 = dy0 * scale;
- dly0 = -dx0 * scale;
-
- /* Set dl[xy]1 to the vector from i1 to i2, rotated counterclockwise
- 90 degrees, and scaled to the length of line_width. */
- scale = line_width / sqrt (dx1 * dx1 + dy1 * dy1);
- dlx1 = dy1 * scale;
- dly1 = -dx1 * scale;
-
- /* now, forw's last point is expected to be colinear along d[xy]0
- to point i0 - dl[xy]0, and rev with i0 + dl[xy]0. */
-
- /* positive for positive area (i.e. left turn) */
- cross = dx1 * dy0 - dx0 * dy1;
-
- dmx = (dlx0 + dlx1) * 0.5;
- dmy = (dly0 + dly1) * 0.5;
- dmr2 = dmx * dmx + dmy * dmy;
-
- if (join == ART_PATH_STROKE_JOIN_MITER &&
- dmr2 * miter_limit * miter_limit < line_width * line_width)
- join = ART_PATH_STROKE_JOIN_BEVEL;
-
- /* the case when dmr2 is zero or very small bothers me
- (i.e. near a 180 degree angle)
- ALEX: So, we avoid the optimization when dmr2 is very small. This should
- be safe since dmx/y is only used in optimization and in MITER case, and MITER
- should be converted to BEVEL when dmr2 is very small. */
- if (dmr2 > EPSILON_2)
- {
- scale = line_width * line_width / dmr2;
- dmx *= scale;
- dmy *= scale;
- }
-
- if (cross * cross < EPSILON_2 && dx0 * dx1 + dy0 * dy1 >= 0)
- {
- /* going straight */
- art_vpath_add_point (p_forw, pn_forw, pn_forw_max,
- ART_LINETO, vpath[i1].x - dlx0, vpath[i1].y - dly0);
- art_vpath_add_point (p_rev, pn_rev, pn_rev_max,
- ART_LINETO, vpath[i1].x + dlx0, vpath[i1].y + dly0);
- }
- else if (cross > 0)
- {
- /* left turn, forw is outside and rev is inside */
-
- if (
-#ifdef NO_OPTIMIZE_INNER
- 0 &&
-#endif
- (dmr2 > EPSILON_2) &&
- /* check that i1 + dm[xy] is inside i0-i1 rectangle */
- (dx0 + dmx) * dx0 + (dy0 + dmy) * dy0 > 0 &&
- /* and that i1 + dm[xy] is inside i1-i2 rectangle */
- ((dx1 - dmx) * dx1 + (dy1 - dmy) * dy1 > 0)
-#ifdef PEDANTIC_INNER
- &&
- /* check that i1 + dl[xy]1 is inside i0-i1 rectangle */
- (dx0 + dlx1) * dx0 + (dy0 + dly1) * dy0 > 0 &&
- /* and that i1 + dl[xy]0 is inside i1-i2 rectangle */
- ((dx1 - dlx0) * dx1 + (dy1 - dly0) * dy1 > 0)
-#endif
- )
- {
- /* can safely add single intersection point */
- art_vpath_add_point (p_rev, pn_rev, pn_rev_max,
- ART_LINETO, vpath[i1].x + dmx, vpath[i1].y + dmy);
- }
- else
- {
- /* need to loop-de-loop the inside */
- art_vpath_add_point (p_rev, pn_rev, pn_rev_max,
- ART_LINETO, vpath[i1].x + dlx0, vpath[i1].y + dly0);
- art_vpath_add_point (p_rev, pn_rev, pn_rev_max,
- ART_LINETO, vpath[i1].x, vpath[i1].y);
- art_vpath_add_point (p_rev, pn_rev, pn_rev_max,
- ART_LINETO, vpath[i1].x + dlx1, vpath[i1].y + dly1);
- }
-
- if (join == ART_PATH_STROKE_JOIN_BEVEL)
- {
- /* bevel */
- art_vpath_add_point (p_forw, pn_forw, pn_forw_max,
- ART_LINETO, vpath[i1].x - dlx0, vpath[i1].y - dly0);
- art_vpath_add_point (p_forw, pn_forw, pn_forw_max,
- ART_LINETO, vpath[i1].x - dlx1, vpath[i1].y - dly1);
- }
- else if (join == ART_PATH_STROKE_JOIN_MITER)
- {
- art_vpath_add_point (p_forw, pn_forw, pn_forw_max,
- ART_LINETO, vpath[i1].x - dmx, vpath[i1].y - dmy);
- }
- else if (join == ART_PATH_STROKE_JOIN_ROUND)
- art_svp_vpath_stroke_arc (p_forw, pn_forw, pn_forw_max,
- vpath[i1].x, vpath[i1].y,
- -dlx0, -dly0,
- -dlx1, -dly1,
- line_width,
- flatness);
- }
- else
- {
- /* right turn, rev is outside and forw is inside */
-
- if (
-#ifdef NO_OPTIMIZE_INNER
- 0 &&
-#endif
- (dmr2 > EPSILON_2) &&
- /* check that i1 - dm[xy] is inside i0-i1 rectangle */
- (dx0 - dmx) * dx0 + (dy0 - dmy) * dy0 > 0 &&
- /* and that i1 - dm[xy] is inside i1-i2 rectangle */
- ((dx1 + dmx) * dx1 + (dy1 + dmy) * dy1 > 0)
-#ifdef PEDANTIC_INNER
- &&
- /* check that i1 - dl[xy]1 is inside i0-i1 rectangle */
- (dx0 - dlx1) * dx0 + (dy0 - dly1) * dy0 > 0 &&
- /* and that i1 - dl[xy]0 is inside i1-i2 rectangle */
- ((dx1 + dlx0) * dx1 + (dy1 + dly0) * dy1 > 0)
-#endif
- )
- {
- /* can safely add single intersection point */
- art_vpath_add_point (p_forw, pn_forw, pn_forw_max,
- ART_LINETO, vpath[i1].x - dmx, vpath[i1].y - dmy);
- }
- else
- {
- /* need to loop-de-loop the inside */
- art_vpath_add_point (p_forw, pn_forw, pn_forw_max,
- ART_LINETO, vpath[i1].x - dlx0, vpath[i1].y - dly0);
- art_vpath_add_point (p_forw, pn_forw, pn_forw_max,
- ART_LINETO, vpath[i1].x, vpath[i1].y);
- art_vpath_add_point (p_forw, pn_forw, pn_forw_max,
- ART_LINETO, vpath[i1].x - dlx1, vpath[i1].y - dly1);
- }
-
- if (join == ART_PATH_STROKE_JOIN_BEVEL)
- {
- /* bevel */
- art_vpath_add_point (p_rev, pn_rev, pn_rev_max,
- ART_LINETO, vpath[i1].x + dlx0, vpath[i1].y + dly0);
- art_vpath_add_point (p_rev, pn_rev, pn_rev_max,
- ART_LINETO, vpath[i1].x + dlx1, vpath[i1].y + dly1);
- }
- else if (join == ART_PATH_STROKE_JOIN_MITER)
- {
- art_vpath_add_point (p_rev, pn_rev, pn_rev_max,
- ART_LINETO, vpath[i1].x + dmx, vpath[i1].y + dmy);
- }
- else if (join == ART_PATH_STROKE_JOIN_ROUND)
- art_svp_vpath_stroke_arc (p_rev, pn_rev, pn_rev_max,
- vpath[i1].x, vpath[i1].y,
- dlx0, dly0,
- dlx1, dly1,
- -line_width,
- flatness);
-
- }
-}
-
-/* caps i1, under the assumption of a vector from i0 */
-static void
-render_cap (ArtVpath **p_result, gint *pn_result, gint *pn_result_max,
- ArtVpath *vpath, gint i0, gint i1,
- ArtPathStrokeCapType cap, gdouble line_width, gdouble flatness)
-{
- gdouble dx0, dy0;
- gdouble dlx0, dly0;
- gdouble scale;
- gint n_pts;
- gint i;
-
- dx0 = vpath[i1].x - vpath[i0].x;
- dy0 = vpath[i1].y - vpath[i0].y;
-
- /* Set dl[xy]0 to the vector from i0 to i1, rotated counterclockwise
- 90 degrees, and scaled to the length of line_width. */
- scale = line_width / sqrt (dx0 * dx0 + dy0 * dy0);
- dlx0 = dy0 * scale;
- dly0 = -dx0 * scale;
-
- switch (cap)
- {
- case ART_PATH_STROKE_CAP_BUTT:
- art_vpath_add_point (p_result, pn_result, pn_result_max,
- ART_LINETO, vpath[i1].x - dlx0, vpath[i1].y - dly0);
- art_vpath_add_point (p_result, pn_result, pn_result_max,
- ART_LINETO, vpath[i1].x + dlx0, vpath[i1].y + dly0);
- break;
- case ART_PATH_STROKE_CAP_ROUND:
- n_pts = ceil (M_PI / (2.0 * M_SQRT2 * sqrt (flatness / line_width)));
- art_vpath_add_point (p_result, pn_result, pn_result_max,
- ART_LINETO, vpath[i1].x - dlx0, vpath[i1].y - dly0);
- for (i = 1; i < n_pts; i++)
- {
- gdouble theta, c_th, s_th;
-
- theta = M_PI * i / n_pts;
- c_th = cos (theta);
- s_th = sin (theta);
- art_vpath_add_point (p_result, pn_result, pn_result_max,
- ART_LINETO,
- vpath[i1].x - dlx0 * c_th - dly0 * s_th,
- vpath[i1].y - dly0 * c_th + dlx0 * s_th);
- }
- art_vpath_add_point (p_result, pn_result, pn_result_max,
- ART_LINETO, vpath[i1].x + dlx0, vpath[i1].y + dly0);
- break;
- case ART_PATH_STROKE_CAP_SQUARE:
- art_vpath_add_point (p_result, pn_result, pn_result_max,
- ART_LINETO,
- vpath[i1].x - dlx0 - dly0,
- vpath[i1].y - dly0 + dlx0);
- art_vpath_add_point (p_result, pn_result, pn_result_max,
- ART_LINETO,
- vpath[i1].x + dlx0 - dly0,
- vpath[i1].y + dly0 + dlx0);
- break;
- }
-}
-
-/**
- * art_svp_from_vpath_raw: Stroke a vector path, raw version
- * @vpath: #ArtVPath to stroke.
- * @join: Join style.
- * @cap: Cap style.
- * @line_width: Width of stroke.
- * @miter_limit: Miter limit.
- * @flatness: Flatness.
- *
- * Exactly the same as art_svp_vpath_stroke(), except that the resulting
- * stroke outline may self-intersect and have regions of winding number
- * greater than 1.
- *
- * Return value: Resulting raw stroked outline in svp format.
- **/
-ArtVpath *
-art_svp_vpath_stroke_raw (ArtVpath *vpath,
- ArtPathStrokeJoinType join,
- ArtPathStrokeCapType cap,
- gdouble line_width,
- gdouble miter_limit,
- gdouble flatness)
-{
- gint begin_idx, end_idx;
- gint i;
- ArtVpath *forw, *rev;
- gint n_forw, n_rev;
- gint n_forw_max, n_rev_max;
- ArtVpath *result;
- gint n_result, n_result_max;
- gdouble half_lw = 0.5 * line_width;
- gint closed;
- gint last, this, next, second;
- gdouble dx, dy;
-
- n_forw_max = 16;
- forw = art_new (ArtVpath, n_forw_max);
-
- n_rev_max = 16;
- rev = art_new (ArtVpath, n_rev_max);
-
- n_result = 0;
- n_result_max = 16;
- result = art_new (ArtVpath, n_result_max);
-
- for (begin_idx = 0; vpath[begin_idx].code != ART_END; begin_idx = end_idx)
- {
- n_forw = 0;
- n_rev = 0;
-
- closed = (vpath[begin_idx].code == ART_MOVETO);
-
- /* we don't know what the first point joins with until we get to the
- last point and see if it's closed. So we start with the second
- line in the path.
-
- Note: this is not strictly true (we now know it's closed from
- the opening pathcode), but why fix code that isn't broken?
- */
-
- this = begin_idx;
- /* skip over identical points at the beginning of the subpath */
- for (i = this + 1; vpath[i].code == ART_LINETO; i++)
- {
- dx = vpath[i].x - vpath[this].x;
- dy = vpath[i].y - vpath[this].y;
- if (dx * dx + dy * dy > EPSILON_2)
- break;
- }
- next = i;
- second = next;
-
- /* invariant: this doesn't coincide with next */
- while (vpath[next].code == ART_LINETO)
- {
- last = this;
- this = next;
- /* skip over identical points after the beginning of the subpath */
- for (i = this + 1; vpath[i].code == ART_LINETO; i++)
- {
- dx = vpath[i].x - vpath[this].x;
- dy = vpath[i].y - vpath[this].y;
- if (dx * dx + dy * dy > EPSILON_2)
- break;
- }
- next = i;
- if (vpath[next].code != ART_LINETO)
- {
- /* reached end of path */
- /* make "closed" detection conform to PostScript
- semantics (i.e. explicit closepath code rather than
- just the fact that end of the path is the beginning) */
- if (closed &&
- vpath[this].x == vpath[begin_idx].x &&
- vpath[this].y == vpath[begin_idx].y)
- {
- gint j;
-
- /* path is closed, render join to beginning */
- render_seg (&forw, &n_forw, &n_forw_max,
- &rev, &n_rev, &n_rev_max,
- vpath, last, this, second,
- join, half_lw, miter_limit, flatness);
-
- /* do forward path */
- art_vpath_add_point (&result, &n_result, &n_result_max,
- ART_MOVETO, forw[n_forw - 1].x,
- forw[n_forw - 1].y);
- for (j = 0; j < n_forw; j++)
- art_vpath_add_point (&result, &n_result, &n_result_max,
- ART_LINETO, forw[j].x,
- forw[j].y);
-
- /* do reverse path, reversed */
- art_vpath_add_point (&result, &n_result, &n_result_max,
- ART_MOVETO, rev[0].x,
- rev[0].y);
- for (j = n_rev - 1; j >= 0; j--)
- art_vpath_add_point (&result, &n_result, &n_result_max,
- ART_LINETO, rev[j].x,
- rev[j].y);
- }
- else
- {
- /* path is open */
- gint j;
-
- /* add to forw rather than result to ensure that
- forw has at least one point. */
- render_cap (&forw, &n_forw, &n_forw_max,
- vpath, last, this,
- cap, half_lw, flatness);
- art_vpath_add_point (&result, &n_result, &n_result_max,
- ART_MOVETO, forw[0].x,
- forw[0].y);
- for (j = 1; j < n_forw; j++)
- art_vpath_add_point (&result, &n_result, &n_result_max,
- ART_LINETO, forw[j].x,
- forw[j].y);
- for (j = n_rev - 1; j >= 0; j--)
- art_vpath_add_point (&result, &n_result, &n_result_max,
- ART_LINETO, rev[j].x,
- rev[j].y);
- render_cap (&result, &n_result, &n_result_max,
- vpath, second, begin_idx,
- cap, half_lw, flatness);
- art_vpath_add_point (&result, &n_result, &n_result_max,
- ART_LINETO, forw[0].x,
- forw[0].y);
- }
- }
- else
- render_seg (&forw, &n_forw, &n_forw_max,
- &rev, &n_rev, &n_rev_max,
- vpath, last, this, next,
- join, half_lw, miter_limit, flatness);
- }
- end_idx = next;
- }
-
- art_free (forw);
- art_free (rev);
- art_vpath_add_point (&result, &n_result, &n_result_max, ART_END, 0, 0);
- return result;
-}
-
-/* Render a vector path into a stroked outline.
-
- Status of this routine:
-
- Basic correctness: Only miter and bevel line joins are implemented,
- and only butt line caps. Otherwise, seems to be fine.
-
- Numerical stability: We cheat (adding random perturbation). Thus,
- it seems very likely that no numerical stability problems will be
- seen in practice.
-
- Speed: Should be pretty good.
-
- Precision: The perturbation fuzzes the coordinates slightly,
- but not enough to be visible. */
-/**
- * art_svp_vpath_stroke: Stroke a vector path.
- * @vpath: #ArtVPath to stroke.
- * @join: Join style.
- * @cap: Cap style.
- * @line_width: Width of stroke.
- * @miter_limit: Miter limit.
- * @flatness: Flatness.
- *
- * Computes an svp representing the stroked outline of @vpath. The
- * width of the stroked line is @line_width.
- *
- * Lines are joined according to the @join rule. Possible values are
- * ART_PATH_STROKE_JOIN_MITER (for mitered joins),
- * ART_PATH_STROKE_JOIN_ROUND (for round joins), and
- * ART_PATH_STROKE_JOIN_BEVEL (for bevelled joins). The mitered join
- * is converted to a bevelled join if the miter would extend to a
- * distance of more than @miter_limit * @line_width from the actual
- * join point.
- *
- * If there are open subpaths, the ends of these subpaths are capped
- * according to the @cap rule. Possible values are
- * ART_PATH_STROKE_CAP_BUTT (squared cap, extends exactly to end
- * point), ART_PATH_STROKE_CAP_ROUND (rounded half-circle centered at
- * the end point), and ART_PATH_STROKE_CAP_SQUARE (squared cap,
- * extending half @line_width past the end point).
- *
- * The @flatness parameter controls the accuracy of the rendering. It
- * is most important for determining the number of points to use to
- * approximate circular arcs for round lines and joins. In general, the
- * resulting vector path will be within @flatness pixels of the "ideal"
- * path containing actual circular arcs. I reserve the right to use
- * the @flatness parameter to convert bevelled joins to miters for very
- * small turn angles, as this would reduce the number of points in the
- * resulting outline path.
- *
- * The resulting path is "clean" with respect to self-intersections, i.e.
- * the winding number is 0 or 1 at each point.
- *
- * Return value: Resulting stroked outline in svp format.
- **/
-ArtSVP *
-art_svp_vpath_stroke (ArtVpath *vpath,
- ArtPathStrokeJoinType join,
- ArtPathStrokeCapType cap,
- gdouble line_width,
- gdouble miter_limit,
- gdouble flatness)
-{
-#ifdef ART_USE_NEW_INTERSECTOR
- ArtVpath *vpath_stroke;
- ArtSVP *svp, *svp2;
- ArtSvpWriter *swr;
-
- vpath_stroke = art_svp_vpath_stroke_raw (vpath, join, cap,
- line_width, miter_limit, flatness);
- svp = art_svp_from_vpath (vpath_stroke);
- art_free (vpath_stroke);
-
- swr = art_svp_writer_rewind_new (ART_WIND_RULE_NONZERO);
- art_svp_intersector (svp, swr);
-
- svp2 = art_svp_writer_rewind_reap (swr);
- art_svp_free (svp);
- return svp2;
-#else
- ArtVpath *vpath_stroke, *vpath2;
- ArtSVP *svp, *svp2, *svp3;
-
- vpath_stroke = art_svp_vpath_stroke_raw (vpath, join, cap,
- line_width, miter_limit, flatness);
- vpath2 = art_vpath_perturb (vpath_stroke);
- art_free (vpath_stroke);
- svp = art_svp_from_vpath (vpath2);
- art_free (vpath2);
- svp2 = art_svp_uncross (svp);
- art_svp_free (svp);
- svp3 = art_svp_rewind_uncrossed (svp2, ART_WIND_RULE_NONZERO);
- art_svp_free (svp2);
-
- return svp3;
-#endif
-}
diff --git a/libart_lgpl/art_svp_vpath_stroke.h b/libart_lgpl/art_svp_vpath_stroke.h
deleted file mode 100644
index f945d7cba9..0000000000
--- a/libart_lgpl/art_svp_vpath_stroke.h
+++ /dev/null
@@ -1,65 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_SVP_VPATH_STROKE_H__
-#define __ART_SVP_VPATH_STROKE_H__
-
-/* Sort vector paths into sorted vector paths. */
-
-#include <libart_lgpl/art_svp.h>
-#include <libart_lgpl/art_vpath.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-typedef enum {
- ART_PATH_STROKE_JOIN_MITER,
- ART_PATH_STROKE_JOIN_ROUND,
- ART_PATH_STROKE_JOIN_BEVEL
-} ArtPathStrokeJoinType;
-
-typedef enum {
- ART_PATH_STROKE_CAP_BUTT,
- ART_PATH_STROKE_CAP_ROUND,
- ART_PATH_STROKE_CAP_SQUARE
-} ArtPathStrokeCapType;
-
-ArtSVP *
-art_svp_vpath_stroke (ArtVpath *vpath,
- ArtPathStrokeJoinType join,
- ArtPathStrokeCapType cap,
- gdouble line_width,
- gdouble miter_limit,
- gdouble flatness);
-
-/* This version may have winding numbers exceeding 1. */
-ArtVpath *
-art_svp_vpath_stroke_raw (ArtVpath *vpath,
- ArtPathStrokeJoinType join,
- ArtPathStrokeCapType cap,
- gdouble line_width,
- gdouble miter_limit,
- gdouble flatness);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __ART_SVP_VPATH_STROKE_H__ */
diff --git a/libart_lgpl/art_svp_wind.h b/libart_lgpl/art_svp_wind.h
deleted file mode 100644
index fd999b4bb9..0000000000
--- a/libart_lgpl/art_svp_wind.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_SVP_WIND_H__
-#define __ART_SVP_WIND_H__
-
-/* Primitive intersection and winding number operations on sorted
- vector paths. */
-
-#include <libart_lgpl/art_svp.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-#ifndef ART_WIND_RULE_DEFINED
-#define ART_WIND_RULE_DEFINED
-typedef enum {
- ART_WIND_RULE_NONZERO,
- ART_WIND_RULE_INTERSECT,
- ART_WIND_RULE_ODDEVEN,
- ART_WIND_RULE_POSITIVE
-} ArtWindRule;
-#endif
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __ART_SVP_WIND_H__ */
diff --git a/libart_lgpl/art_uta.c b/libart_lgpl/art_uta.c
deleted file mode 100644
index 138fd8b30c..0000000000
--- a/libart_lgpl/art_uta.c
+++ /dev/null
@@ -1,88 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#include "config.h"
-#include "art_uta.h"
-
-#include <string.h>
-#include "art_misc.h"
-
-/**
- * art_uta_new: Allocate a new uta.
- * @x0: Left coordinate of uta.
- * @y0: Top coordinate of uta.
- * @x1: Right coordinate of uta.
- * @y1: Bottom coordinate of uta.
- *
- * Allocates a new microtile array. The arguments are in units of
- * tiles, not pixels.
- *
- * Returns: the newly allocated #ArtUta.
- **/
-ArtUta *
-art_uta_new (gint x0, gint y0, gint x1, gint y1)
-{
- ArtUta *uta;
-
- uta = art_new (ArtUta, 1);
- uta->x0 = x0;
- uta->y0 = y0;
- uta->width = x1 - x0;
- uta->height = y1 - y0;
-
- uta->utiles = art_new (ArtUtaBbox, uta->width * uta->height);
-
- memset (uta->utiles, 0, uta->width * uta->height * sizeof (ArtUtaBbox));
- return uta;
- }
-
-/**
- * art_uta_new_coords: Allocate a new uta, based on pixel coordinates.
- * @x0: Left coordinate of uta.
- * @y0: Top coordinate of uta.
- * @x1: Right coordinate of uta.
- * @y1: Bottom coordinate of uta.
- *
- * Allocates a new microtile array. The arguments are in pixels
- *
- * Returns: the newly allocated #ArtUta.
- **/
-ArtUta *
-art_uta_new_coords (gint x0, gint y0, gint x1, gint y1)
-{
- return art_uta_new (x0 >> ART_UTILE_SHIFT, y0 >> ART_UTILE_SHIFT,
- 1 + (x1 >> ART_UTILE_SHIFT),
- 1 + (y1 >> ART_UTILE_SHIFT));
-}
-
-/**
- * art_uta_free: Free a uta.
- * @uta: The uta to free.
- *
- * Frees the microtile array structure, including the actual microtile
- * data.
- **/
-void
-art_uta_free (ArtUta *uta)
-{
- art_free (uta->utiles);
- art_free (uta);
-}
-
-/* User to Aardvark! */
diff --git a/libart_lgpl/art_uta.h b/libart_lgpl/art_uta.h
deleted file mode 100644
index 3101949bb2..0000000000
--- a/libart_lgpl/art_uta.h
+++ /dev/null
@@ -1,68 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_UTA_H__
-#define __ART_UTA_H__
-
-/* Basic data structures and constructors for microtile arrays */
-
-#include <libart_lgpl/art_misc.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-typedef art_u32 ArtUtaBbox;
-typedef struct _ArtUta ArtUta;
-
-#define ART_UTA_BBOX_CONS(x0, y0, x1, y1) (((x0) << 24) | ((y0) << 16) | \
- ((x1) << 8) | (y1))
-
-#define ART_UTA_BBOX_X0(ub) ((ub) >> 24)
-#define ART_UTA_BBOX_Y0(ub) (((ub) >> 16) & 0xff)
-#define ART_UTA_BBOX_X1(ub) (((ub) >> 8) & 0xff)
-#define ART_UTA_BBOX_Y1(ub) ((ub) & 0xff)
-
-#define ART_UTILE_SHIFT 5
-#define ART_UTILE_SIZE (1 << ART_UTILE_SHIFT)
-
-/* Coordinates are shifted right by ART_UTILE_SHIFT wrt the real
- coordinates. */
-struct _ArtUta {
- gint x0;
- gint y0;
- gint width;
- gint height;
- ArtUtaBbox *utiles;
-};
-
-ArtUta *
-art_uta_new (gint x0, gint y0, gint x1, gint y1);
-
-ArtUta *
-art_uta_new_coords (gint x0, gint y0, gint x1, gint y1);
-
-void
-art_uta_free (ArtUta *uta);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __ART_UTA_H__ */
diff --git a/libart_lgpl/art_uta_rect.c b/libart_lgpl/art_uta_rect.c
deleted file mode 100644
index d92cf691b5..0000000000
--- a/libart_lgpl/art_uta_rect.c
+++ /dev/null
@@ -1,111 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#include "config.h"
-#include "art_uta_rect.h"
-
-#include "art_misc.h"
-#include "art_uta.h"
-#include "art_rect.h"
-
-/**
- * art_uta_from_irect: Generate uta covering a rectangle.
- * @bbox: The source rectangle.
- *
- * Generates a uta exactly covering @bbox. Please do not call this
- * function with a @bbox with zero height or width.
- *
- * Return value: the new uta.
- **/
-ArtUta *
-art_uta_from_irect (ArtIRect *bbox)
-{
- ArtUta *uta;
- ArtUtaBbox *utiles;
- ArtUtaBbox bb;
- gint width, height;
- gint x, y;
- gint xf0, yf0, xf1, yf1;
- gint ix;
-
- uta = art_new (ArtUta, 1);
- uta->x0 = bbox->x0 >> ART_UTILE_SHIFT;
- uta->y0 = bbox->y0 >> ART_UTILE_SHIFT;
- width = ((bbox->x1 + ART_UTILE_SIZE - 1) >> ART_UTILE_SHIFT) - uta->x0;
- height = ((bbox->y1 + ART_UTILE_SIZE - 1) >> ART_UTILE_SHIFT) - uta->y0;
- utiles = art_new (ArtUtaBbox, width * height);
-
- uta->width = width;
- uta->height = height;
- uta->utiles = utiles;
-
- xf0 = bbox->x0 & (ART_UTILE_SIZE - 1);
- yf0 = bbox->y0 & (ART_UTILE_SIZE - 1);
- xf1 = ((bbox->x1 - 1) & (ART_UTILE_SIZE - 1)) + 1;
- yf1 = ((bbox->y1 - 1) & (ART_UTILE_SIZE - 1)) + 1;
- if (height == 1)
- {
- if (width == 1)
- utiles[0] = ART_UTA_BBOX_CONS (xf0, yf0, xf1, yf1);
- else
- {
- utiles[0] = ART_UTA_BBOX_CONS (xf0, yf0, ART_UTILE_SIZE, yf1);
- bb = ART_UTA_BBOX_CONS (0, yf0, ART_UTILE_SIZE, yf1);
- for (x = 1; x < width - 1; x++)
- utiles[x] = bb;
- utiles[x] = ART_UTA_BBOX_CONS (0, yf0, xf1, yf1);
- }
- }
- else
- {
- if (width == 1)
- {
- utiles[0] = ART_UTA_BBOX_CONS (xf0, yf0, xf1, ART_UTILE_SIZE);
- bb = ART_UTA_BBOX_CONS (xf0, 0, xf1, ART_UTILE_SIZE);
- for (y = 1; y < height - 1; y++)
- utiles[y] = bb;
- utiles[y] = ART_UTA_BBOX_CONS (xf0, 0, xf1, yf1);
- }
- else
- {
- utiles[0] =
- ART_UTA_BBOX_CONS (xf0, yf0, ART_UTILE_SIZE, ART_UTILE_SIZE);
- bb = ART_UTA_BBOX_CONS (0, yf0, ART_UTILE_SIZE, ART_UTILE_SIZE);
- for (x = 1; x < width - 1; x++)
- utiles[x] = bb;
- utiles[x] = ART_UTA_BBOX_CONS (0, yf0, xf1, ART_UTILE_SIZE);
- ix = width;
- for (y = 1; y < height - 1; y++)
- {
- utiles[ix++] =
- ART_UTA_BBOX_CONS (xf0, 0, ART_UTILE_SIZE, ART_UTILE_SIZE);
- bb = ART_UTA_BBOX_CONS (0, 0, ART_UTILE_SIZE, ART_UTILE_SIZE);
- for (x = 1; x < width - 1; x++)
- utiles[ix++] = bb;
- utiles[ix++] = ART_UTA_BBOX_CONS (0, 0, xf1, ART_UTILE_SIZE);
- }
- utiles[ix++] = ART_UTA_BBOX_CONS (xf0, 0, ART_UTILE_SIZE, yf1);
- bb = ART_UTA_BBOX_CONS (0, 0, ART_UTILE_SIZE, yf1);
- for (x = 1; x < width - 1; x++)
- utiles[ix++] = bb;
- utiles[ix++] = ART_UTA_BBOX_CONS (0, 0, xf1, yf1);
- }
- }
- return uta;
-}
diff --git a/libart_lgpl/art_uta_rect.h b/libart_lgpl/art_uta_rect.h
deleted file mode 100644
index cf726d81da..0000000000
--- a/libart_lgpl/art_uta_rect.h
+++ /dev/null
@@ -1,37 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_UTA_RECT_H__
-#define __ART_UTA_RECT_H__
-
-#include <libart_lgpl/art_rect.h>
-#include <libart_lgpl/art_uta.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-ArtUta *
-art_uta_from_irect (ArtIRect *bbox);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __ART_UTA_RECT_H__ */
diff --git a/libart_lgpl/art_uta_svp.c b/libart_lgpl/art_uta_svp.c
deleted file mode 100644
index 2a0f37250e..0000000000
--- a/libart_lgpl/art_uta_svp.c
+++ /dev/null
@@ -1,54 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998-2000 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/* LGPL Copyright 1998 Raph Levien <raph@acm.org> */
-
-#include "config.h"
-#include "art_uta_svp.h"
-
-#include "art_misc.h"
-#include "art_vpath.h"
-#include "art_uta.h"
-#include "art_uta_vpath.h"
-#include "art_svp.h"
-#include "art_vpath_svp.h"
-
-/**
- * art_uta_from_svp: Generate uta covering an svp.
- * @svp: The source svp.
- *
- * Generates a uta covering @svp. The resulting uta is of course
- * approximate, ie it may cover more pixels than covered by @svp.
- *
- * Note: I will want to replace this with a more direct
- * implementation. But this gets the api in place.
- *
- * Return value: the new uta.
- **/
-ArtUta *
-art_uta_from_svp (const ArtSVP *svp)
-{
- ArtVpath *vpath;
- ArtUta *uta;
-
- vpath = art_vpath_from_svp (svp);
- uta = art_uta_from_vpath (vpath);
- art_free (vpath);
- return uta;
-}
diff --git a/libart_lgpl/art_uta_svp.h b/libart_lgpl/art_uta_svp.h
deleted file mode 100644
index 0d2d489cb0..0000000000
--- a/libart_lgpl/art_uta_svp.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_UTA_SVP_H__
-#define __ART_UTA_SVP_H__
-
-/* Basic data structures and constructors for microtile arrays */
-
-#include <libart_lgpl/art_svp.h>
-#include <libart_lgpl/art_uta.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-ArtUta *
-art_uta_from_svp (const ArtSVP *svp);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __ART_UTA_SVP_H__ */
-
diff --git a/libart_lgpl/art_uta_vpath.c b/libart_lgpl/art_uta_vpath.c
deleted file mode 100644
index 841b9614d2..0000000000
--- a/libart_lgpl/art_uta_vpath.c
+++ /dev/null
@@ -1,376 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998-2000 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#include "config.h"
-#include "art_uta_vpath.h"
-
-#include <math.h>
-
-#include "art_misc.h"
-#include "art_vpath.h"
-#include "art_uta.h"
-
-#ifndef MAX
-#define MAX(a, b) (((a) > (b)) ? (a) : (b))
-#endif /* MAX */
-
-#ifndef MIN
-#define MIN(a, b) (((a) < (b)) ? (a) : (b))
-#endif /* MIN */
-
-/**
- * art_uta_add_line: Add a line to the uta.
- * @uta: The uta to modify.
- * @x0: X coordinate of line start point.
- * @y0: Y coordinate of line start point.
- * @x1: X coordinate of line end point.
- * @y1: Y coordinate of line end point.
- * @rbuf: Buffer containing first difference of winding number.
- * @rbuf_rowstride: Rowstride of @rbuf.
- *
- * Add the line (@x0, @y0) - (@x1, @y1) to @uta, and also update the
- * winding number buffer used for rendering the interior. @rbuf
- * contains the first partial difference (in the X direction) of the
- * winding number, measured in grid cells. Thus, each time that a line
- * crosses a horizontal uta grid line, an entry of @rbuf is
- * incremented if @y1 > @y0, decremented otherwise.
- *
- * Note that edge handling is fairly delicate. Please rtfs for
- * details.
- **/
-void
-art_uta_add_line (ArtUta *uta, gdouble x0, gdouble y0, gdouble x1, gdouble y1,
- gint *rbuf, gint rbuf_rowstride)
-{
- gint xmin, ymin;
- gdouble xmax, ymax;
- gint xmaxf, ymaxf;
- gint xmaxc, ymaxc;
- gint xt0, yt0;
- gint xt1, yt1;
- gint xf0, yf0;
- gint xf1, yf1;
- gint ix, ix1;
- ArtUtaBbox bb;
-
- xmin = floor (MIN (x0, x1));
- xmax = MAX (x0, x1);
- xmaxf = floor (xmax);
- xmaxc = ceil (xmax);
- ymin = floor (MIN (y0, y1));
- ymax = MAX (y0, y1);
- ymaxf = floor (ymax);
- ymaxc = ceil (ymax);
- xt0 = (xmin >> ART_UTILE_SHIFT) - uta->x0;
- yt0 = (ymin >> ART_UTILE_SHIFT) - uta->y0;
- xt1 = (xmaxf >> ART_UTILE_SHIFT) - uta->x0;
- yt1 = (ymaxf >> ART_UTILE_SHIFT) - uta->y0;
- if (xt0 == xt1 && yt0 == yt1)
- {
- /* entirely inside a microtile, this is easy! */
- xf0 = xmin & (ART_UTILE_SIZE - 1);
- yf0 = ymin & (ART_UTILE_SIZE - 1);
- xf1 = (xmaxf & (ART_UTILE_SIZE - 1)) + xmaxc - xmaxf;
- yf1 = (ymaxf & (ART_UTILE_SIZE - 1)) + ymaxc - ymaxf;
-
- ix = yt0 * uta->width + xt0;
- bb = uta->utiles[ix];
- if (bb == 0)
- bb = ART_UTA_BBOX_CONS (xf0, yf0, xf1, yf1);
- else
- bb = ART_UTA_BBOX_CONS (MIN (ART_UTA_BBOX_X0 (bb), xf0),
- MIN (ART_UTA_BBOX_Y0 (bb), yf0),
- MAX (ART_UTA_BBOX_X1 (bb), xf1),
- MAX (ART_UTA_BBOX_Y1 (bb), yf1));
- uta->utiles[ix] = bb;
- }
- else
- {
- gdouble dx, dy;
- gint sx, sy;
-
- dx = x1 - x0;
- dy = y1 - y0;
- sx = dx > 0 ? 1 : dx < 0 ? -1 : 0;
- sy = dy > 0 ? 1 : dy < 0 ? -1 : 0;
- if (ymin == ymaxf)
- {
- /* special case horizontal (dx/dy slope would be infinite) */
- xf0 = xmin & (ART_UTILE_SIZE - 1);
- yf0 = ymin & (ART_UTILE_SIZE - 1);
- xf1 = (xmaxf & (ART_UTILE_SIZE - 1)) + xmaxc - xmaxf;
- yf1 = (ymaxf & (ART_UTILE_SIZE - 1)) + ymaxc - ymaxf;
-
- ix = yt0 * uta->width + xt0;
- ix1 = yt0 * uta->width + xt1;
- while (ix != ix1)
- {
- bb = uta->utiles[ix];
- if (bb == 0)
- bb = ART_UTA_BBOX_CONS (xf0, yf0, ART_UTILE_SIZE, yf1);
- else
- bb = ART_UTA_BBOX_CONS (MIN (ART_UTA_BBOX_X0 (bb), xf0),
- MIN (ART_UTA_BBOX_Y0 (bb), yf0),
- ART_UTILE_SIZE,
- MAX (ART_UTA_BBOX_Y1 (bb), yf1));
- uta->utiles[ix] = bb;
- xf0 = 0;
- ix++;
- }
- bb = uta->utiles[ix];
- if (bb == 0)
- bb = ART_UTA_BBOX_CONS (0, yf0, xf1, yf1);
- else
- bb = ART_UTA_BBOX_CONS (0,
- MIN (ART_UTA_BBOX_Y0 (bb), yf0),
- MAX (ART_UTA_BBOX_X1 (bb), xf1),
- MAX (ART_UTA_BBOX_Y1 (bb), yf1));
- uta->utiles[ix] = bb;
- }
- else
- {
- /* Do a Bresenham-style traversal of the line */
- gdouble dx_dy;
- gdouble x, y;
- gdouble xn, yn;
-
- /* normalize coordinates to uta origin */
- x0 -= uta->x0 << ART_UTILE_SHIFT;
- y0 -= uta->y0 << ART_UTILE_SHIFT;
- x1 -= uta->x0 << ART_UTILE_SHIFT;
- y1 -= uta->y0 << ART_UTILE_SHIFT;
- if (dy < 0)
- {
- gdouble tmp;
-
- tmp = x0;
- x0 = x1;
- x1 = tmp;
-
- tmp = y0;
- y0 = y1;
- y1 = tmp;
-
- dx = -dx;
- sx = -sx;
- dy = -dy;
- /* we leave sy alone, because it would always be 1,
- and we need it for the rbuf stuff. */
- }
- xt0 = ((gint)floor (x0) >> ART_UTILE_SHIFT);
- xt1 = ((gint)floor (x1) >> ART_UTILE_SHIFT);
- /* now [xy]0 is above [xy]1 */
-
- ix = yt0 * uta->width + xt0;
- ix1 = yt1 * uta->width + xt1;
-
- dx_dy = dx / dy;
- x = x0;
- y = y0;
- while (ix != ix1)
- {
- gint dix;
-
- /* figure out whether next crossing is horizontal or vertical */
- yn = (yt0 + 1) << ART_UTILE_SHIFT;
-
- /* xn is the intercept with bottom edge of this tile. The
- following expression is careful to result in exactly
- x1 when yn = y1. */
- xn = x1 + dx_dy * (yn - y1);
-
- if (xt0 != (gint)floor (xn) >> ART_UTILE_SHIFT)
- {
- /* horizontal crossing */
- xt0 += sx;
- dix = sx;
- if (dx > 0)
- {
- xn = xt0 << ART_UTILE_SHIFT;
- yn = y0 + (xn - x0) / dx_dy;
-
- xf0 = (gint)floor (x) & (ART_UTILE_SIZE - 1);
- xf1 = ART_UTILE_SIZE;
- }
- else
- {
- xn = (xt0 + 1) << ART_UTILE_SHIFT;
- yn = y0 + (xn - x0) / dx_dy;
-
- xf0 = 0;
- xmaxc = (gint)ceil (x);
- xf1 = xmaxc - ((xt0 + 1) << ART_UTILE_SHIFT);
- }
- ymaxf = (gint)floor (yn);
- ymaxc = (gint)ceil (yn);
- yf1 = (ymaxf & (ART_UTILE_SIZE - 1)) + ymaxc - ymaxf;
- }
- else
- {
- /* vertical crossing */
- dix = uta->width;
- xf0 = (gint)floor (MIN (x, xn)) & (ART_UTILE_SIZE - 1);
- xmax = MAX (x, xn);
- xmaxc = (gint)ceil (xmax);
- xf1 = xmaxc - (xt0 << ART_UTILE_SHIFT);
- yf1 = ART_UTILE_SIZE;
-
- if (rbuf != NULL)
- rbuf[yt0 * rbuf_rowstride + xt0] += sy;
-
- yt0++;
- }
- yf0 = (gint)floor (y) & (ART_UTILE_SIZE - 1);
- bb = uta->utiles[ix];
- if (bb == 0)
- bb = ART_UTA_BBOX_CONS (xf0, yf0, xf1, yf1);
- else
- bb = ART_UTA_BBOX_CONS (MIN (ART_UTA_BBOX_X0 (bb), xf0),
- MIN (ART_UTA_BBOX_Y0 (bb), yf0),
- MAX (ART_UTA_BBOX_X1 (bb), xf1),
- MAX (ART_UTA_BBOX_Y1 (bb), yf1));
- uta->utiles[ix] = bb;
-
- x = xn;
- y = yn;
- ix += dix;
- }
- xmax = MAX (x, x1);
- xmaxc = ceil (xmax);
- ymaxc = ceil (y1);
- xf0 = (gint)floor (MIN (x1, x)) & (ART_UTILE_SIZE - 1);
- yf0 = (gint)floor (y) & (ART_UTILE_SIZE - 1);
- xf1 = xmaxc - (xt0 << ART_UTILE_SHIFT);
- yf1 = ymaxc - (yt0 << ART_UTILE_SHIFT);
- bb = uta->utiles[ix];
- if (bb == 0)
- bb = ART_UTA_BBOX_CONS (xf0, yf0, xf1, yf1);
- else
- bb = ART_UTA_BBOX_CONS (MIN (ART_UTA_BBOX_X0 (bb), xf0),
- MIN (ART_UTA_BBOX_Y0 (bb), yf0),
- MAX (ART_UTA_BBOX_X1 (bb), xf1),
- MAX (ART_UTA_BBOX_Y1 (bb), yf1));
- uta->utiles[ix] = bb;
- }
- }
-}
-
-/**
- * art_uta_from_vpath: Generate uta covering a vpath.
- * @vec: The source vpath.
- *
- * Generates a uta covering @vec. The resulting uta is of course
- * approximate, ie it may cover more pixels than covered by @vec.
- *
- * Return value: the new uta.
- **/
-ArtUta *
-art_uta_from_vpath (const ArtVpath *vec)
-{
- ArtUta *uta;
- ArtIRect bbox;
- gint *rbuf;
- gint i;
- gdouble x, y;
- gint sum;
- gint xt, yt;
- ArtUtaBbox *utiles;
- ArtUtaBbox bb;
- gint width;
- gint height;
- gint ix;
-
- art_vpath_bbox_irect (vec, &bbox);
-
- uta = art_uta_new_coords (bbox.x0, bbox.y0, bbox.x1, bbox.y1);
-
- width = uta->width;
- height = uta->height;
- utiles = uta->utiles;
-
- rbuf = art_new (int, width * height);
- for (i = 0; i < width * height; i++)
- rbuf[i] = 0;
-
- x = 0;
- y = 0;
- for (i = 0; vec[i].code != ART_END; i++)
- {
- switch (vec[i].code)
- {
- case ART_MOVETO:
- x = vec[i].x;
- y = vec[i].y;
- break;
- case ART_LINETO:
- art_uta_add_line (uta, vec[i].x, vec[i].y, x, y, rbuf, width);
- x = vec[i].x;
- y = vec[i].y;
- break;
- default:
- /* this shouldn't happen */
- art_free (rbuf);
- art_free (uta);
- return NULL;
- }
- }
-
- /* now add in the filling from rbuf */
- ix = 0;
- for (yt = 0; yt < height; yt++)
- {
- sum = 0;
- for (xt = 0; xt < width; xt++)
- {
- sum += rbuf[ix];
- /* Nonzero winding rule - others are possible, but hardly
- worth it. */
- if (sum != 0)
- {
- bb = utiles[ix];
- bb &= 0xffff0000;
- bb |= (ART_UTILE_SIZE << 8) | ART_UTILE_SIZE;
- utiles[ix] = bb;
- if (xt != width - 1)
- {
- bb = utiles[ix + 1];
- bb &= 0xffff00;
- bb |= ART_UTILE_SIZE;
- utiles[ix + 1] = bb;
- }
- if (yt != height - 1)
- {
- bb = utiles[ix + width];
- bb &= 0xff0000ff;
- bb |= ART_UTILE_SIZE << 8;
- utiles[ix + width] = bb;
- if (xt != width - 1)
- {
- utiles[ix + width + 1] &= 0xffff;
- }
- }
- }
- ix++;
- }
- }
-
- art_free (rbuf);
-
- return uta;
-}
diff --git a/libart_lgpl/art_uta_vpath.h b/libart_lgpl/art_uta_vpath.h
deleted file mode 100644
index 3f50e3a746..0000000000
--- a/libart_lgpl/art_uta_vpath.h
+++ /dev/null
@@ -1,45 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_UTA_VPATH_H__
-#define __ART_UTA_VPATH_H__
-
-/* Basic data structures and constructors for microtile arrays */
-
-#include <libart_lgpl/art_uta.h>
-#include <libart_lgpl/art_vpath.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-ArtUta *
-art_uta_from_vpath (const ArtVpath *vec);
-
-/* This is a private function: */
-void
-art_uta_add_line (ArtUta *uta, gdouble x0, gdouble y0, gdouble x1, gdouble y1,
- gint *rbuf, gint rbuf_rowstride);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __ART_UTA_VPATH_H__ */
-
diff --git a/libart_lgpl/art_vpath.c b/libart_lgpl/art_vpath.c
deleted file mode 100644
index 395917915b..0000000000
--- a/libart_lgpl/art_vpath.c
+++ /dev/null
@@ -1,112 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998-2000 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/* Basic constructors and operations for vector paths */
-
-#include "config.h"
-#include "art_vpath.h"
-
-#include <math.h>
-#include <stdlib.h>
-
-#include "art_misc.h"
-
-#include "art_rect.h"
-
-/**
- * art_vpath_add_point: Add point to vpath.
- * @p_vpath: Where the pointer to the #ArtVpath structure is stored.
- * @pn_points: Pointer to the number of points in *@p_vpath.
- * @pn_points_max: Pointer to the number of points allocated.
- * @code: The pathcode for the new point.
- * @x: The X coordinate of the new point.
- * @y: The Y coordinate of the new point.
- *
- * Adds a new point to *@p_vpath, reallocating and updating *@p_vpath
- * and *@pn_points_max as necessary. *@pn_points is incremented.
- *
- * This routine always adds the point after all points already in the
- * vpath. Thus, it should be called in the order the points are
- * desired.
- **/
-void
-art_vpath_add_point (ArtVpath **p_vpath, gint *pn_points, gint *pn_points_max,
- ArtPathcode code, gdouble x, gdouble y)
-{
- gint i;
-
- i = (*pn_points)++;
- if (i == *pn_points_max)
- art_expand (*p_vpath, ArtVpath, *pn_points_max);
- (*p_vpath)[i].code = code;
- (*p_vpath)[i].x = x;
- (*p_vpath)[i].y = y;
-}
-
-/**
- * art_vpath_bbox_drect: Determine bounding box of vpath.
- * @vec: Source vpath.
- * @drect: Where to store bounding box.
- *
- * Determines bounding box of @vec, and stores it in @drect.
- **/
-void
-art_vpath_bbox_drect (const ArtVpath *vec, ArtDRect *drect)
-{
- gint i;
- gdouble x0, y0, x1, y1;
-
- if (vec[0].code == ART_END)
- {
- x0 = y0 = x1 = y1 = 0;
- }
- else
- {
- x0 = x1 = vec[0].x;
- y0 = y1 = vec[0].y;
- for (i = 1; vec[i].code != ART_END; i++)
- {
- if (vec[i].x < x0) x0 = vec[i].x;
- if (vec[i].x > x1) x1 = vec[i].x;
- if (vec[i].y < y0) y0 = vec[i].y;
- if (vec[i].y > y1) y1 = vec[i].y;
- }
- }
- drect->x0 = x0;
- drect->y0 = y0;
- drect->x1 = x1;
- drect->y1 = y1;
-}
-
-/**
- * art_vpath_bbox_irect: Determine integer bounding box of vpath.
- * @vec: Source vpath.
- * idrect: Where to store bounding box.
- *
- * Determines integer bounding box of @vec, and stores it in @irect.
- **/
-void
-art_vpath_bbox_irect (const ArtVpath *vec, ArtIRect *irect)
-{
- ArtDRect drect;
-
- art_vpath_bbox_drect (vec, &drect);
- art_drect_to_irect (irect, &drect);
-}
-
diff --git a/libart_lgpl/art_vpath.h b/libart_lgpl/art_vpath.h
deleted file mode 100644
index 7dadd2865d..0000000000
--- a/libart_lgpl/art_vpath.h
+++ /dev/null
@@ -1,57 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_VPATH_H__
-#define __ART_VPATH_H__
-
-#include <libart_lgpl/art_rect.h>
-#include <libart_lgpl/art_pathcode.h>
-
-/* Basic data structures and constructors for simple vector paths */
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-typedef struct _ArtVpath ArtVpath;
-
-/* CURVETO is not allowed! */
-struct _ArtVpath {
- ArtPathcode code;
- gdouble x;
- gdouble y;
-};
-
-/* Some of the functions need to go into their own modules */
-
-void
-art_vpath_add_point (ArtVpath **p_vpath, gint *pn_points, gint *pn_points_max,
- ArtPathcode code, gdouble x, gdouble y);
-
-void
-art_vpath_bbox_drect (const ArtVpath *vec, ArtDRect *drect);
-
-void
-art_vpath_bbox_irect (const ArtVpath *vec, ArtIRect *irect);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __ART_VPATH_H__ */
diff --git a/libart_lgpl/art_vpath_bpath.c b/libart_lgpl/art_vpath_bpath.c
deleted file mode 100644
index b662051e85..0000000000
--- a/libart_lgpl/art_vpath_bpath.c
+++ /dev/null
@@ -1,298 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/* Basic constructors and operations for bezier paths */
-
-#include "config.h"
-#include "art_vpath_bpath.h"
-
-#include <math.h>
-
-#include "art_misc.h"
-
-#include "art_bpath.h"
-#include "art_vpath.h"
-
-/* p must be allocated 2^level points. */
-
-/* level must be >= 1 */
-ArtPoint *
-art_bezier_to_vec (gdouble x0, gdouble y0,
- gdouble x1, gdouble y1,
- gdouble x2, gdouble y2,
- gdouble x3, gdouble y3,
- ArtPoint *p,
- gint level)
-{
- gdouble x_m, y_m;
-
- if (level == 1) {
- x_m = (x0 + 3 * (x1 + x2) + x3) * 0.125;
- y_m = (y0 + 3 * (y1 + y2) + y3) * 0.125;
- p->x = x_m;
- p->y = y_m;
- p++;
- p->x = x3;
- p->y = y3;
- p++;
- } else {
- gdouble xa1, ya1;
- gdouble xa2, ya2;
- gdouble xb1, yb1;
- gdouble xb2, yb2;
-
- xa1 = (x0 + x1) * 0.5;
- ya1 = (y0 + y1) * 0.5;
- xa2 = (x0 + 2 * x1 + x2) * 0.25;
- ya2 = (y0 + 2 * y1 + y2) * 0.25;
- xb1 = (x1 + 2 * x2 + x3) * 0.25;
- yb1 = (y1 + 2 * y2 + y3) * 0.25;
- xb2 = (x2 + x3) * 0.5;
- yb2 = (y2 + y3) * 0.5;
- x_m = (xa2 + xb1) * 0.5;
- y_m = (ya2 + yb1) * 0.5;
- p = art_bezier_to_vec (x0, y0, xa1, ya1, xa2, ya2, x_m, y_m, p, level - 1);
- p = art_bezier_to_vec (x_m, y_m, xb1, yb1, xb2, yb2, x3, y3, p, level - 1);
- }
- return p;
-}
-
-#define RENDER_LEVEL 4
-#define RENDER_SIZE (1 << (RENDER_LEVEL))
-
-/**
- * art_vpath_render_bez: Render a bezier segment into the vpath.
- * @p_vpath: Where the pointer to the #ArtVpath structure is stored.
- * @pn_points: Pointer to the number of points in *@p_vpath.
- * @pn_points_max: Pointer to the number of points allocated.
- * @x0: X coordinate of starting bezier point.
- * @y0: Y coordinate of starting bezier point.
- * @x1: X coordinate of first bezier control point.
- * @y1: Y coordinate of first bezier control point.
- * @x2: X coordinate of second bezier control point.
- * @y2: Y coordinate of second bezier control point.
- * @x3: X coordinate of ending bezier point.
- * @y3: Y coordinate of ending bezier point.
- * @flatness: Flatness control.
- *
- * Renders a bezier segment into the vector path, reallocating and
- * updating *@p_vpath and *@pn_vpath_max as necessary. *@pn_vpath is
- * incremented by the number of vector points added.
- *
- * This step includes (@x0, @y0) but not (@x3, @y3).
- *
- * The @flatness argument guides the amount of subdivision. The Adobe
- * PostScript reference manual defines flatness as the maximum
- * deviation between the any point on the vpath approximation and the
- * corresponding point on the "true" curve, and we follow this
- * definition here. A value of 0.25 should ensure high quality for aa
- * rendering.
-**/
-static void
-art_vpath_render_bez (ArtVpath **p_vpath, gint *pn, gint *pn_max,
- gdouble x0, gdouble y0,
- gdouble x1, gdouble y1,
- gdouble x2, gdouble y2,
- gdouble x3, gdouble y3,
- gdouble flatness)
-{
- gdouble x3_0, y3_0;
- gdouble z3_0_dot;
- gdouble z1_dot, z2_dot;
- gdouble z1_perp, z2_perp;
- gdouble max_perp_sq;
-
- gdouble x_m, y_m;
- gdouble xa1, ya1;
- gdouble xa2, ya2;
- gdouble xb1, yb1;
- gdouble xb2, yb2;
-
- /* It's possible to optimize this routine a fair amount.
-
- First, once the _dot conditions are met, they will also be met in
- all further subdivisions. So we might recurse to a different
- routine that only checks the _perp conditions.
-
- Second, the distance _should_ decrease according to fairly
- predictable rules (a factor of 4 with each subdivision). So it might
- be possible to note that the distance is within a factor of 4 of
- acceptable, and subdivide once. But proving this might be hard.
-
- Third, at the last subdivision, x_m and y_m can be computed more
- expeditiously (as in the routine above).
-
- Finally, if we were able to subdivide by, say 2 or 3, this would
- allow considerably finer-grain control, i.e. fewer points for the
- same flatness tolerance. This would speed things up downstream.
-
- In any case, this routine is unlikely to be the bottleneck. It's
- just that I have this undying quest for more speed...
-
- */
-
- x3_0 = x3 - x0;
- y3_0 = y3 - y0;
-
- /* z3_0_dot is dist z0-z3 squared */
- z3_0_dot = x3_0 * x3_0 + y3_0 * y3_0;
-
- if (z3_0_dot < 0.001)
- {
- /* if start and end point are almost identical, the flatness tests
- * don't work properly, so fall back on testing whether both of
- * the other two control points are the same as the start point,
- * too.
- */
- if (hypot (x1 - x0, y1 - y0) < 0.001
- && hypot (x2 - x0, y2 - y0) < 0.001)
- goto nosubdivide;
- else
- goto subdivide;
- }
-
- /* we can avoid subdivision if:
-
- z1 has distance no more than flatness from the z0-z3 line
-
- z1 is no more z0'ward than flatness past z0-z3
-
- z1 is more z0'ward than z3'ward on the line traversing z0-z3
-
- and correspondingly for z2 */
-
- /* perp is distance from line, multiplied by dist z0-z3 */
- max_perp_sq = flatness * flatness * z3_0_dot;
-
- z1_perp = (y1 - y0) * x3_0 - (x1 - x0) * y3_0;
- if (z1_perp * z1_perp > max_perp_sq)
- goto subdivide;
-
- z2_perp = (y3 - y2) * x3_0 - (x3 - x2) * y3_0;
- if (z2_perp * z2_perp > max_perp_sq)
- goto subdivide;
-
- z1_dot = (x1 - x0) * x3_0 + (y1 - y0) * y3_0;
- if (z1_dot < 0 && z1_dot * z1_dot > max_perp_sq)
- goto subdivide;
-
- z2_dot = (x3 - x2) * x3_0 + (y3 - y2) * y3_0;
- if (z2_dot < 0 && z2_dot * z2_dot > max_perp_sq)
- goto subdivide;
-
- if (z1_dot + z1_dot > z3_0_dot)
- goto subdivide;
-
- if (z2_dot + z2_dot > z3_0_dot)
- goto subdivide;
-
- nosubdivide:
- /* don't subdivide */
- art_vpath_add_point (p_vpath, pn, pn_max,
- ART_LINETO, x3, y3);
- return;
-
- subdivide:
-
- xa1 = (x0 + x1) * 0.5;
- ya1 = (y0 + y1) * 0.5;
- xa2 = (x0 + 2 * x1 + x2) * 0.25;
- ya2 = (y0 + 2 * y1 + y2) * 0.25;
- xb1 = (x1 + 2 * x2 + x3) * 0.25;
- yb1 = (y1 + 2 * y2 + y3) * 0.25;
- xb2 = (x2 + x3) * 0.5;
- yb2 = (y2 + y3) * 0.5;
- x_m = (xa2 + xb1) * 0.5;
- y_m = (ya2 + yb1) * 0.5;
- art_vpath_render_bez (p_vpath, pn, pn_max,
- x0, y0, xa1, ya1, xa2, ya2, x_m, y_m, flatness);
- art_vpath_render_bez (p_vpath, pn, pn_max,
- x_m, y_m, xb1, yb1, xb2, yb2, x3, y3, flatness);
-}
-
-/**
- * art_bez_path_to_vec: Create vpath from bezier path.
- * @bez: Bezier path.
- * @flatness: Flatness control.
- *
- * Creates a vector path closely approximating the bezier path defined by
- * @bez. The @flatness argument controls the amount of subdivision. In
- * general, the resulting vpath deviates by at most @flatness pixels
- * from the "ideal" path described by @bez.
- *
- * Return value: Newly allocated vpath.
- **/
-ArtVpath *
-art_bez_path_to_vec (const ArtBpath *bez, gdouble flatness)
-{
- ArtVpath *vec;
- gint vec_n, vec_n_max;
- gint bez_index;
- gdouble x, y;
-
- vec_n = 0;
- vec_n_max = RENDER_SIZE;
- vec = art_new (ArtVpath, vec_n_max);
-
- /* Initialization is unnecessary because of the precondition that the
- bezier path does not begin with LINETO or CURVETO, but is here
- to make the code warning-free. */
- x = 0;
- y = 0;
-
- bez_index = 0;
- do
- {
- /* make sure space for at least one more code */
- if (vec_n >= vec_n_max)
- art_expand (vec, ArtVpath, vec_n_max);
- switch (bez[bez_index].code)
- {
- case ART_MOVETO_OPEN:
- case ART_MOVETO:
- case ART_LINETO:
- x = bez[bez_index].x3;
- y = bez[bez_index].y3;
- vec[vec_n].code = bez[bez_index].code;
- vec[vec_n].x = x;
- vec[vec_n].y = y;
- vec_n++;
- break;
- case ART_END:
- vec[vec_n].code = bez[bez_index].code;
- vec[vec_n].x = 0;
- vec[vec_n].y = 0;
- vec_n++;
- break;
- case ART_CURVETO:
- art_vpath_render_bez (&vec, &vec_n, &vec_n_max,
- x, y,
- bez[bez_index].x1, bez[bez_index].y1,
- bez[bez_index].x2, bez[bez_index].y2,
- bez[bez_index].x3, bez[bez_index].y3,
- flatness);
- x = bez[bez_index].x3;
- y = bez[bez_index].y3;
- break;
- }
- }
- while (bez[bez_index++].code != ART_END);
- return vec;
-}
-
diff --git a/libart_lgpl/art_vpath_bpath.h b/libart_lgpl/art_vpath_bpath.h
deleted file mode 100644
index 5115ee58cf..0000000000
--- a/libart_lgpl/art_vpath_bpath.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_VPATH_BPATH_H__
-#define __ART_VPATH_BPATH_H__
-
-#include <libart_lgpl/art_bpath.h>
-#include <libart_lgpl/art_vpath.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-ArtPoint *art_bezier_to_vec (gdouble x0, gdouble y0,
- gdouble x1, gdouble y1,
- gdouble x2, gdouble y2,
- gdouble x3, gdouble y3,
- ArtPoint *p,
- gint level);
-
-ArtVpath *art_bez_path_to_vec (const ArtBpath *bez, gdouble flatness);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __ART_VPATH_BPATH_H__ */
diff --git a/libart_lgpl/art_vpath_dash.c b/libart_lgpl/art_vpath_dash.c
deleted file mode 100644
index 2c54aca4a6..0000000000
--- a/libart_lgpl/art_vpath_dash.c
+++ /dev/null
@@ -1,199 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1999-2000 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/* Apply a dash style to a vector path. */
-
-#include "config.h"
-#include "art_vpath_dash.h"
-
-#include <math.h>
-#include <stdlib.h>
-
-#include "art_misc.h"
-
-#include "art_vpath.h"
-
-/* Return the length of the largest subpath within vpath */
-static gint
-art_vpath_dash_max_subpath (const ArtVpath *vpath)
-{
- gint max_subpath;
- gint i;
- gint start;
-
- max_subpath = 0;
- start = 0;
- for (i = 0; vpath[i].code != ART_END; i++)
- {
- if (vpath[i].code == ART_MOVETO || vpath[i].code == ART_MOVETO_OPEN)
- {
- if (i - start > max_subpath)
- max_subpath = i - start;
- start = i;
- }
- }
- if (i - start > max_subpath)
- max_subpath = i - start;
-
- return max_subpath;
-}
-
-/**
- * art_vpath_dash: Add dash style to vpath.
- * @vpath: Original vpath.
- * @dash: Dash style.
- *
- * Creates a new vpath that is the result of applying dash style @dash
- * to @vpath.
- *
- * This implementation has two known flaws:
- *
- * First, it adds a spurious break at the beginning of the vpath. The
- * only way I see to resolve this flaw is to run the state forward one
- * dash break at the beginning, and fix up by looping back to the
- * first dash break at the end. This is doable but of course adds some
- * complexity.
- *
- * Second, it does not suppress output points that are within epsilon
- * of each other.
- *
- * Return value: Newly created vpath.
- **/
-ArtVpath *
-art_vpath_dash (const ArtVpath *vpath, const ArtVpathDash *dash)
-{
- gint max_subpath;
- gdouble *dists;
- ArtVpath *result;
- gint n_result, n_result_max;
- gint start, end;
- gint i;
- gdouble total_dist;
-
- /* state while traversing dasharray - offset is offset of current dash
- value, toggle is 0 for "off" and 1 for "on", and phase is the distance
- in, >= 0, < dash->dash[offset]. */
- gint offset, toggle;
- gdouble phase;
-
- /* initial values */
- gint offset_init, toggle_init;
- gdouble phase_init;
-
- max_subpath = art_vpath_dash_max_subpath (vpath);
- dists = art_new (double, max_subpath);
-
- n_result = 0;
- n_result_max = 16;
- result = art_new (ArtVpath, n_result_max);
-
- /* determine initial values of dash state */
- toggle_init = 1;
- offset_init = 0;
- phase_init = dash->offset;
- while (phase_init >= dash->dash[offset_init])
- {
- toggle_init = !toggle_init;
- phase_init -= dash->dash[offset_init];
- offset_init++;
- if (offset_init == dash->n_dash)
- offset_init = 0;
- }
-
- for (start = 0; vpath[start].code != ART_END; start = end)
- {
- for (end = start + 1; vpath[end].code == ART_LINETO; end++);
- /* subpath is [start..end) */
- total_dist = 0;
- for (i = start; i < end - 1; i++)
- {
- gdouble dx, dy;
-
- dx = vpath[i + 1].x - vpath[i].x;
- dy = vpath[i + 1].y - vpath[i].y;
- dists[i - start] = sqrt (dx * dx + dy * dy);
- total_dist += dists[i - start];
- }
- if (total_dist <= dash->dash[offset_init] - phase_init)
- {
- /* subpath fits entirely within first dash */
- if (toggle_init)
- {
- for (i = start; i < end; i++)
- art_vpath_add_point (&result, &n_result, &n_result_max,
- vpath[i].code, vpath[i].x, vpath[i].y);
- }
- }
- else
- {
- /* subpath is composed of at least one dash - thus all
- generated pieces are open */
- gdouble dist;
-
- phase = phase_init;
- offset = offset_init;
- toggle = toggle_init;
- dist = 0;
- i = start;
- if (toggle)
- art_vpath_add_point (&result, &n_result, &n_result_max,
- ART_MOVETO_OPEN, vpath[i].x, vpath[i].y);
- while (i != end - 1)
- {
- if (dists[i - start] - dist > dash->dash[offset] - phase)
- {
- /* dash boundary is next */
- gdouble a;
- gdouble x, y;
-
- dist += dash->dash[offset] - phase;
- a = dist / dists[i - start];
- x = vpath[i].x + a * (vpath[i + 1].x - vpath[i].x);
- y = vpath[i].y + a * (vpath[i + 1].y - vpath[i].y);
- art_vpath_add_point (&result, &n_result, &n_result_max,
- toggle ? ART_LINETO : ART_MOVETO_OPEN,
- x, y);
- /* advance to next dash */
- toggle = !toggle;
- phase = 0;
- offset++;
- if (offset == dash->n_dash)
- offset = 0;
- }
- else
- {
- /* end of line in vpath is next */
- phase += dists[i - start] - dist;
- i++;
- dist = 0;
- if (toggle)
- art_vpath_add_point (&result, &n_result, &n_result_max,
- ART_LINETO, vpath[i].x, vpath[i].y);
- }
- }
- }
- }
-
- art_vpath_add_point (&result, &n_result, &n_result_max,
- ART_END, 0, 0);
-
- art_free (dists);
-
- return result;
-}
diff --git a/libart_lgpl/art_vpath_dash.h b/libart_lgpl/art_vpath_dash.h
deleted file mode 100644
index 93ecea5e32..0000000000
--- a/libart_lgpl/art_vpath_dash.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1999 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_VPATH_DASH_H__
-#define __ART_VPATH_DASH_H__
-
-/* Apply a dash style to a vector path. */
-
-#include <libart_lgpl/art_vpath.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-typedef struct _ArtVpathDash ArtVpathDash;
-
-struct _ArtVpathDash {
- gdouble offset;
- gint n_dash;
- gdouble *dash;
-};
-
-ArtVpath *
-art_vpath_dash (const ArtVpath *vpath, const ArtVpathDash *dash);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __ART_VPATH_DASH_H__ */
diff --git a/libart_lgpl/art_vpath_svp.c b/libart_lgpl/art_vpath_svp.c
deleted file mode 100644
index ceeea0ac4b..0000000000
--- a/libart_lgpl/art_vpath_svp.c
+++ /dev/null
@@ -1,196 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998-2000 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-/* "Unsort" a sorted vector path into an ordinary vector path. */
-
-#include "config.h"
-#include "art_vpath_svp.h"
-
-#include <stdio.h> /* for printf - debugging */
-#include "art_misc.h"
-
-#include "art_vpath.h"
-#include "art_svp.h"
-
-typedef struct _ArtVpathSVPEnd ArtVpathSVPEnd;
-
-struct _ArtVpathSVPEnd {
- gint seg_num;
- gint which; /* 0 = top, 1 = bottom */
- gdouble x, y;
-};
-
-#define EPSILON 1e-6
-
-static gint
-art_vpath_svp_point_compare (gdouble x1, gdouble y1, gdouble x2, gdouble y2)
-{
- if (y1 - EPSILON > y2) return 1;
- if (y1 + EPSILON < y2) return -1;
- if (x1 - EPSILON > x2) return 1;
- if (x1 + EPSILON < x2) return -1;
- return 0;
-}
-
-static gint
-art_vpath_svp_compare (gconstpointer s1, gconstpointer s2)
-{
- const ArtVpathSVPEnd *e1 = s1;
- const ArtVpathSVPEnd *e2 = s2;
-
- return art_vpath_svp_point_compare (e1->x, e1->y, e2->x, e2->y);
-}
-
-/* Convert from sorted vector path representation into regular
- vector path representation.
-
- Status of this routine:
-
- Basic correctness: Only works with closed paths.
-
- Numerical stability: Not known to work when more than two segments
- meet at a point.
-
- Speed: Should be pretty good.
-
- Precision: Does not degrade precision.
-
-*/
-/**
- * art_vpath_from_svp: Convert from svp to vpath form.
- * @svp: Original #ArtSVP.
- *
- * Converts the sorted vector path @svp into standard vpath form.
- *
- * Return value: the newly allocated vpath.
- **/
-ArtVpath *
-art_vpath_from_svp (const ArtSVP *svp)
-{
- gint n_segs = svp->n_segs;
- ArtVpathSVPEnd *ends;
- ArtVpath *new;
- gint *visited;
- gint n_new, n_new_max;
- gint i, k;
- gint j = 0; /* Quiet compiler */
- gint seg_num;
- gint first;
- gdouble last_x, last_y;
- gint n_points;
- gint pt_num;
-
- last_x = 0; /* to eliminate "uninitialized" warning */
- last_y = 0;
-
- ends = art_new (ArtVpathSVPEnd, n_segs * 2);
- for (i = 0; i < svp->n_segs; i++)
- {
- gint lastpt;
-
- ends[i * 2].seg_num = i;
- ends[i * 2].which = 0;
- ends[i * 2].x = svp->segs[i].points[0].x;
- ends[i * 2].y = svp->segs[i].points[0].y;
-
- lastpt = svp->segs[i].n_points - 1;
- ends[i * 2 + 1].seg_num = i;
- ends[i * 2 + 1].which = 1;
- ends[i * 2 + 1].x = svp->segs[i].points[lastpt].x;
- ends[i * 2 + 1].y = svp->segs[i].points[lastpt].y;
- }
- qsort (ends, n_segs * 2, sizeof (ArtVpathSVPEnd), art_vpath_svp_compare);
-
- n_new = 0;
- n_new_max = 16; /* I suppose we _could_ estimate this from traversing
- the svp, so we don't have to reallocate */
- new = art_new (ArtVpath, n_new_max);
-
- visited = art_new (int, n_segs);
- for (i = 0; i < n_segs; i++)
- visited[i] = 0;
-
- first = 1;
- for (i = 0; i < n_segs; i++)
- {
- if (!first)
- {
- /* search for the continuation of the existing subpath */
- /* This could be a binary search (which is why we sorted, above) */
- for (j = 0; j < n_segs * 2; j++)
- {
- if (!visited[ends[j].seg_num] &&
- art_vpath_svp_point_compare (last_x, last_y,
- ends[j].x, ends[j].y) == 0)
- break;
- }
- if (j == n_segs * 2)
- first = 1;
- }
- if (first)
- {
- /* start a new subpath */
- for (j = 0; j < n_segs * 2; j++)
- if (!visited[ends[j].seg_num])
- break;
- }
- if (j == n_segs * 2)
- {
- printf ("failure\n");
- }
- seg_num = ends[j].seg_num;
- n_points = svp->segs[seg_num].n_points;
- for (k = 0; k < n_points; k++)
- {
- pt_num = svp->segs[seg_num].dir ? k : n_points - (1 + k);
- if (k == 0)
- {
- if (first)
- {
- art_vpath_add_point (&new, &n_new, &n_new_max,
- ART_MOVETO,
- svp->segs[seg_num].points[pt_num].x,
- svp->segs[seg_num].points[pt_num].y);
- }
- }
- else
- {
- art_vpath_add_point (&new, &n_new, &n_new_max,
- ART_LINETO,
- svp->segs[seg_num].points[pt_num].x,
- svp->segs[seg_num].points[pt_num].y);
- if (k == n_points - 1)
- {
- last_x = svp->segs[seg_num].points[pt_num].x;
- last_y = svp->segs[seg_num].points[pt_num].y;
- /* to make more robust, check for meeting first_[xy],
- set first if so */
- }
- }
- first = 0;
- }
- visited[seg_num] = 1;
- }
-
- art_vpath_add_point (&new, &n_new, &n_new_max,
- ART_END, 0, 0);
- art_free (visited);
- art_free (ends);
- return new;
-}
diff --git a/libart_lgpl/art_vpath_svp.h b/libart_lgpl/art_vpath_svp.h
deleted file mode 100644
index 2df9641f58..0000000000
--- a/libart_lgpl/art_vpath_svp.h
+++ /dev/null
@@ -1,38 +0,0 @@
-/* Libart_LGPL - library of basic graphic primitives
- * Copyright (C) 1998 Raph Levien
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Library General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
- */
-
-#ifndef __ART_VPATH_SVP_H__
-#define __ART_VPATH_SVP_H__
-
-/* "Unsort" a sorted vector path into an ordinary vector path. */
-
-#include <libart_lgpl/art_svp.h>
-#include <libart_lgpl/art_vpath.h>
-
-#ifdef __cplusplus
-extern "C" {
-#endif /* __cplusplus */
-
-ArtVpath *art_vpath_from_svp (const ArtSVP *svp);
-
-#ifdef __cplusplus
-}
-#endif /* __cplusplus */
-
-#endif /* __ART_VPATH_SVP_H__ */
diff --git a/libart_lgpl/libart.h b/libart_lgpl/libart.h
deleted file mode 100644
index 7ab8fb384c..0000000000
--- a/libart_lgpl/libart.h
+++ /dev/null
@@ -1,37 +0,0 @@
-#ifndef LIBART_H
-#define LIBART_H 1
-
-#include <libart_lgpl/art_affine.h>
-#include <libart_lgpl/art_alphagamma.h>
-#include <libart_lgpl/art_bpath.h>
-#include <libart_lgpl/art_filterlevel.h>
-#include <libart_lgpl/art_gray_svp.h>
-#include <libart_lgpl/art_misc.h>
-#include <libart_lgpl/art_pathcode.h>
-#include <libart_lgpl/art_point.h>
-#include <libart_lgpl/art_rect.h>
-#include <libart_lgpl/art_rect_svp.h>
-#include <libart_lgpl/art_rect_uta.h>
-#include <libart_lgpl/art_rgb.h>
-#include <libart_lgpl/art_rgb_affine.h>
-#include <libart_lgpl/art_rgb_bitmap_affine.h>
-#include <libart_lgpl/art_rgb_pixbuf_affine.h>
-#include <libart_lgpl/art_rgb_rgba_affine.h>
-#include <libart_lgpl/art_rgb_svp.h>
-#include <libart_lgpl/art_svp.h>
-#include <libart_lgpl/art_svp_ops.h>
-#include <libart_lgpl/art_svp_point.h>
-#include <libart_lgpl/art_svp_render_aa.h>
-#include <libart_lgpl/art_svp_vpath.h>
-#include <libart_lgpl/art_svp_vpath_stroke.h>
-#include <libart_lgpl/art_svp_wind.h>
-#include <libart_lgpl/art_uta.h>
-#include <libart_lgpl/art_uta_rect.h>
-#include <libart_lgpl/art_uta_svp.h>
-#include <libart_lgpl/art_uta_vpath.h>
-#include <libart_lgpl/art_vpath.h>
-#include <libart_lgpl/art_vpath_bpath.h>
-#include <libart_lgpl/art_vpath_dash.h>
-#include <libart_lgpl/art_vpath_svp.h>
-
-#endif
diff --git a/libart_lgpl/libart.m4 b/libart_lgpl/libart.m4
deleted file mode 100644
index 9380a222de..0000000000
--- a/libart_lgpl/libart.m4
+++ /dev/null
@@ -1,165 +0,0 @@
-# Configure paths for LIBART
-# Raph Levien 98-11-18
-# stolen from Manish Singh 98-9-30
-# stolen back from Frank Belew
-# stolen from Manish Singh
-# Shamelessly stolen from Owen Taylor
-
-dnl AM_PATH_LIBART([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
-dnl Test for LIBART, and define LIBART_CFLAGS and LIBART_LIBS
-dnl
-AC_DEFUN(AM_PATH_LIBART,
-[dnl
-dnl Get the cflags and libraries from the libart-config script
-dnl
-AC_ARG_WITH(libart-prefix,[ --with-libart-prefix=PFX Prefix where LIBART is installed (optional)],
- libart_prefix="$withval", libart_prefix="")
-AC_ARG_WITH(libart-exec-prefix,[ --with-libart-exec-prefix=PFX Exec prefix where LIBART is installed (optional)],
- libart_exec_prefix="$withval", libart_exec_prefix="")
-AC_ARG_ENABLE(libarttest, [ --disable-libarttest Do not try to compile and run a test LIBART program],
- , enable_libarttest=yes)
-
- if test x$libart_exec_prefix != x ; then
- libart_args="$libart_args --exec-prefix=$libart_exec_prefix"
- if test x${LIBART_CONFIG+set} != xset ; then
- LIBART_CONFIG=$libart_exec_prefix/bin/libart-config
- fi
- fi
- if test x$libart_prefix != x ; then
- libart_args="$libart_args --prefix=$libart_prefix"
- if test x${LIBART_CONFIG+set} != xset ; then
- LIBART_CONFIG=$libart_prefix/bin/libart-config
- fi
- fi
-
- AC_PATH_PROG(LIBART_CONFIG, libart-config, no)
- min_libart_version=ifelse([$1], ,0.2.5,$1)
- AC_MSG_CHECKING(for LIBART - version >= $min_libart_version)
- no_libart=""
- if test "$LIBART_CONFIG" = "no" ; then
- no_libart=yes
- else
- LIBART_CFLAGS=`$LIBART_CONFIG $libartconf_args --cflags`
- LIBART_LIBS=`$LIBART_CONFIG $libartconf_args --libs`
-
- libart_major_version=`$LIBART_CONFIG $libart_args --version | \
- sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
- libart_minor_version=`$LIBART_CONFIG $libart_args --version | \
- sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
- libart_micro_version=`$LIBART_CONFIG $libart_config_args --version | \
- sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
- if test "x$enable_libarttest" = "xyes" ; then
- ac_save_CFLAGS="$CFLAGS"
- ac_save_LIBS="$LIBS"
- CFLAGS="$CFLAGS $LIBART_CFLAGS"
- LIBS="$LIBS $LIBART_LIBS"
-dnl
-dnl Now check if the installed LIBART is sufficiently new. (Also sanity
-dnl checks the results of libart-config to some extent
-dnl
- rm -f conf.libarttest
- AC_TRY_RUN([
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <libart_lgpl/libart.h>
-
-char*
-my_strdup (char *str)
-{
- char *new_str;
-
- if (str)
- {
- new_str = malloc ((strlen (str) + 1) * sizeof(char));
- strcpy (new_str, str);
- }
- else
- new_str = NULL;
-
- return new_str;
-}
-
-int main ()
-{
- int major, minor, micro;
- char *tmp_version;
-
- system ("touch conf.libarttest");
-
- /* HP/UX 9 (%@#!) writes to sscanf strings */
- tmp_version = my_strdup("$min_libart_version");
- if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
- printf("%s, bad version string\n", "$min_libart_version");
- exit(1);
- }
-
- if (($libart_major_version > major) ||
- (($libart_major_version == major) && ($libart_minor_version > minor)) ||
- (($libart_major_version == major) && ($libart_minor_version == minor) && ($libart_micro_version >= micro)))
- {
- return 0;
- }
- else
- {
- printf("\n*** 'libart-config --version' returned %d.%d.%d, but the minimum version\n", $libart_major_version, $libart_minor_version, $libart_micro_version);
- printf("*** of LIBART required is %d.%d.%d. If libart-config is correct, then it is\n", major, minor, micro);
- printf("*** best to upgrade to the required version.\n");
- printf("*** If libart-config was wrong, set the environment variable LIBART_CONFIG\n");
- printf("*** to point to the correct copy of libart-config, and remove the file\n");
- printf("*** config.cache before re-running configure\n");
- return 1;
- }
-}
-
-],, no_libart=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
- CFLAGS="$ac_save_CFLAGS"
- LIBS="$ac_save_LIBS"
- fi
- fi
- if test "x$no_libart" = x ; then
- AC_MSG_RESULT(yes)
- ifelse([$2], , :, [$2])
- else
- AC_MSG_RESULT(no)
- if test "$LIBART_CONFIG" = "no" ; then
- echo "*** The libart-config script installed by LIBART could not be found"
- echo "*** If LIBART was installed in PREFIX, make sure PREFIX/bin is in"
- echo "*** your path, or set the LIBART_CONFIG environment variable to the"
- echo "*** full path to libart-config."
- else
- if test -f conf.libarttest ; then
- :
- else
- echo "*** Could not run LIBART test program, checking why..."
- CFLAGS="$CFLAGS $LIBART_CFLAGS"
- LIBS="$LIBS $LIBART_LIBS"
- AC_TRY_LINK([
-#include <stdio.h>
-#include <libart_lgpl/libart.h>
-], [ return 0; ],
- [ echo "*** The test program compiled, but did not run. This usually means"
- echo "*** that the run-time linker is not finding LIBART or finding the wrong"
- echo "*** version of LIBART. If it is not finding LIBART, you'll need to set your"
- echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
- echo "*** to the installed location Also, make sure you have run ldconfig if that"
- echo "*** is required on your system"
- echo "***"
- echo "*** If you have an old version installed, it is best to remove it, although"
- echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
- [ echo "*** The test program failed to compile or link. See the file config.log for the"
- echo "*** exact error that occured. This usually means LIBART was incorrectly installed"
- echo "*** or that you have moved LIBART since it was installed. In the latter case, you"
- echo "*** may want to edit the libart-config script: $LIBART_CONFIG" ])
- CFLAGS="$ac_save_CFLAGS"
- LIBS="$ac_save_LIBS"
- fi
- fi
- LIBART_CFLAGS=""
- LIBART_LIBS=""
- ifelse([$3], , :, [$3])
- fi
- AC_SUBST(LIBART_CFLAGS)
- AC_SUBST(LIBART_LIBS)
- rm -f conf.libarttest
-])