Remove unused libart_lgpl API.

According to CallCatcher.

1 files changed, 0 insertions, 716 deletions

diff --git a/libart_lgpl/art_render_gradient.c b/libart_lgpl/art_render_gradient.c
deleted file mode 100644
index bf93c6fff1..0000000000
--- a/libart_lgpl/art_render_gradient.c
+++ /dev/null
@@ -1,716 +0,0 @@
-/*
- * art_render_gradient.c: Gradient image source for modular rendering.
- *
- * 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.
- *
- * Authors: Raph Levien <raph@acm.org>
- *          Alexander Larsson <alla@lysator.liu.se>
- */
-
-#include "config.h"
-#include "art_render_gradient.h"
-
-#include <math.h>
-#include <stdlib.h>
-#include <stdio.h>
-#include <string.h>
-#include <assert.h>
-
-/* Hack to find out how to define alloca on different platforms.
- * Modified version of glib/galloca.h.
- */
-
-#ifdef  __GNUC__
-/* GCC does the right thing */
-# undef alloca
-# define alloca(size)   __builtin_alloca (size)
-#elif defined (HAVE_ALLOCA_H)
-/* a native and working alloca.h is there */ 
-# include <alloca.h>
-#else /* !__GNUC__ && !HAVE_ALLOCA_H */
-# ifdef _MSC_VER
-#  include <malloc.h>
-#  define alloca _alloca
-# else /* !_MSC_VER */
-#  ifdef _AIX
- #pragma alloca
-#  else /* !_AIX */
-#   ifndef alloca /* predefined by HP cc +Olibcalls */
-char *alloca ();
-#   endif /* !alloca */
-#  endif /* !_AIX */
-# endif /* !_MSC_VER */
-#endif /* !__GNUC__ && !HAVE_ALLOCA_H */
-
-#undef DEBUG_SPEW
-
-typedef struct _ArtImageSourceGradLin ArtImageSourceGradLin;
-typedef struct _ArtImageSourceGradRad ArtImageSourceGradRad;
-
-/* The stops will be copied right after this structure */
-struct _ArtImageSourceGradLin {
-  ArtImageSource super;
-  ArtGradientLinear gradient;
-  ArtGradientStop stops[1];
-};
-
-/* The stops will be copied right after this structure */
-struct _ArtImageSourceGradRad {
-  ArtImageSource super;
-  ArtGradientRadial gradient;
-  double a;
-  ArtGradientStop stops[1];
-};
-
-#define EPSILON 1e-6
-
-#ifndef MAX
-#define MAX(a, b)  (((a) > (b)) ? (a) : (b))
-#endif /* MAX */
-
-#ifndef MIN
-#define MIN(a, b)  (((a) < (b)) ? (a) : (b))
-#endif /* MIN */
-
-static void
-art_rgba_gradient_run (art_u8 *buf,
-		       art_u8 *color1,
-		       art_u8 *color2,
-		       int len)
-{
-  int i;
-  int r, g, b, a;
-  int dr, dg, db, da;
-
-#ifdef DEBUG_SPEW
-  printf ("gradient run from %3d %3d %3d %3d to %3d %3d %3d %3d in %d pixels\n",
-	  color1[0], color1[1], color1[2], color1[3], 
-	  color2[0], color2[1], color2[2], color2[3],
-	  len);
-#endif
-  
-  r = (color1[0] << 16) + 0x8000;
-  g = (color1[1] << 16) + 0x8000;
-  b = (color1[2] << 16) + 0x8000;
-  a = (color1[3] << 16) + 0x8000;
-  dr = ((color2[0] - color1[0]) << 16) / len;
-  dg = ((color2[1] - color1[1]) << 16) / len;
-  db = ((color2[2] - color1[2]) << 16) / len;
-  da = ((color2[3] - color1[3]) << 16) / len;
-
-  for (i = 0; i < len; i++)
-    {
-      *buf++ = (r>>16);
-      *buf++ = (g>>16);
-      *buf++ = (b>>16);
-      *buf++ = (a>>16);
-
-      r += dr;
-      g += dg;
-      b += db;
-      a += da;
-    }
-}
-
-static void
-calc_color_at (ArtGradientStop *stops,
-	       int n_stops,
-	       ArtGradientSpread spread,
-	       double offset,
-	       double offset_fraction,
-	       int favor_start,
-	       int ix,
-	       art_u8 *color)
-{
-  double off0, off1;
-  int j;
-  
-  if (spread == ART_GRADIENT_PAD)
-    {
-      if (offset < 0.0)
-	{
-	  color[0] = ART_PIX_8_FROM_MAX (stops[0].color[0]);
-	  color[1] = ART_PIX_8_FROM_MAX (stops[0].color[1]);
-	  color[2] = ART_PIX_8_FROM_MAX (stops[0].color[2]);
-	  color[3] = ART_PIX_8_FROM_MAX (stops[0].color[3]);
-	  return;
-	}
-      if (offset >= 1.0)
-	{
-	  color[0] = ART_PIX_8_FROM_MAX (stops[n_stops-1].color[0]);
-	  color[1] = ART_PIX_8_FROM_MAX (stops[n_stops-1].color[1]);
-	  color[2] = ART_PIX_8_FROM_MAX (stops[n_stops-1].color[2]);
-	  color[3] = ART_PIX_8_FROM_MAX (stops[n_stops-1].color[3]);
-	  return;
-	}
-    }
-
-  if (ix > 0 && ix < n_stops)
-    {
-      off0 = stops[ix - 1].offset;
-      off1 = stops[ix].offset;
-      if (fabs (off1 - off0) > EPSILON)
-	{
-	  double interp;
-	  double o;
-	  o = offset_fraction;
-	  
-	  if ((fabs (o) < EPSILON) && (!favor_start))
-	    o = 1.0;
-	  else if ((fabs (o-1.0) < EPSILON) && (favor_start))
-	    o = 0.0;
-	  
-	  /*
-	  if (offset_fraction == 0.0  && !favor_start)
-	    offset_fraction = 1.0;
-	  */
-	  
-	  interp = (o - off0) / (off1 - off0);
-	  for (j = 0; j < 4; j++)
-	    {
-	      int z0, z1;
-	      int z;
-	      z0 = stops[ix - 1].color[j];
-	      z1 = stops[ix].color[j];
-	      z = floor (z0 + (z1 - z0) * interp + 0.5);
-	      color[j] = ART_PIX_8_FROM_MAX (z);
-	    }
-	  return;
-	}
-      /* If offsets are too close to safely do the division, just
-	 pick the ix color. */
-      color[0] = ART_PIX_8_FROM_MAX (stops[ix].color[0]);
-      color[1] = ART_PIX_8_FROM_MAX (stops[ix].color[1]);
-      color[2] = ART_PIX_8_FROM_MAX (stops[ix].color[2]);
-      color[3] = ART_PIX_8_FROM_MAX (stops[ix].color[3]);
-      return;
-    }
-
-  printf ("WARNING! bad ix %d in calc_color_at() [internal error]\n", ix);
-  assert (0);
-}
-
-static void
-art_render_gradient_linear_render_8 (ArtRenderCallback *self,
-				     ArtRender *render,
-				     art_u8 *dest, int y)
-{
-  ArtImageSourceGradLin *z = (ArtImageSourceGradLin *)self;
-  const ArtGradientLinear *gradient = &(z->gradient);
-  int i;
-  int width = render->x1 - render->x0;
-  int len;
-  double offset, d_offset;
-  double offset_fraction;
-  int next_stop;
-  int ix;
-  art_u8 color1[4], color2[4];
-  int n_stops = gradient->n_stops;
-  int extra_stops;
-  ArtGradientStop *stops = gradient->stops;
-  ArtGradientStop *tmp_stops;
-  art_u8 *bufp = render->image_buf;
-  ArtGradientSpread spread = gradient->spread;
-
-#ifdef DEBUG_SPEW
-  printf ("x1: %d, x2: %d, y: %d\n", render->x0, render->x1, y);
-  printf ("spread: %d, stops:", gradient->spread);
-  for (i=0;i<n_stops;i++)
-    {
-      printf ("%f, ", gradient->stops[i].offset);
-    }
-  printf ("\n");
-  printf ("a: %f, b: %f, c: %f\n", gradient->a, gradient->b, gradient->c);
-#endif
-  
-  offset = render->x0 * gradient->a + y * gradient->b + gradient->c;
-  d_offset = gradient->a;
-
-  /* We need to force the gradient to extend the whole 0..1 segment,
-     because the rest of the code doesn't handle partial gradients
-     correctly */
-  if ((gradient->stops[0].offset > EPSILON /* == 0.0 */) ||
-      (gradient->stops[n_stops-1].offset < (1.0 - EPSILON)))
-  {
-    extra_stops = 0;
-    tmp_stops = stops = alloca (sizeof (ArtGradientStop) * (n_stops + 2));
-    if (gradient->stops[0].offset > EPSILON /* 0.0 */)
-      {
-	memcpy (tmp_stops, gradient->stops, sizeof (ArtGradientStop));
-	tmp_stops[0].offset = 0.0;
-	tmp_stops += 1;
-	extra_stops++;
-      }
-    memcpy (tmp_stops, gradient->stops, sizeof (ArtGradientStop) * n_stops);
-    if (gradient->stops[n_stops-1].offset < (1.0 - EPSILON))
-      {
-	tmp_stops += n_stops;
-	memcpy (tmp_stops, &gradient->stops[n_stops-1], sizeof (ArtGradientStop));
-	tmp_stops[0].offset = 1.0;
-	extra_stops++;
-      }
-    n_stops += extra_stops;
-
-
-#ifdef DEBUG_SPEW
-    printf ("start/stop modified stops:");
-    for (i=0;i<n_stops;i++)
-      {
-	printf ("%f, ", stops[i].offset);
-      }
-    printf ("\n");
-#endif
-
-  }
-  
-  if (spread == ART_GRADIENT_REFLECT)
-    {
-      tmp_stops = stops;
-      stops = alloca (sizeof (ArtGradientStop) * n_stops * 2);
-      memcpy (stops, tmp_stops, sizeof (ArtGradientStop) * n_stops);
-
-      for (i = 0; i< n_stops; i++)
-	{
-	  stops[n_stops * 2 - 1 - i].offset = (1.0 - stops[i].offset / 2.0);
-	  memcpy (stops[n_stops * 2 - 1 - i].color, stops[i].color, sizeof (stops[i].color));
-	  stops[i].offset = stops[i].offset / 2.0;
-	}
-      
-      spread = ART_GRADIENT_REPEAT;
-      offset = offset / 2.0;
-      d_offset = d_offset / 2.0;
-      
-      n_stops = 2 * n_stops;
-
-#ifdef DEBUG_SPEW
-      printf ("reflect modified stops:");
-      for (i=0;i<n_stops;i++)
-	{
-	  printf ("%f, ", stops[i].offset);
-	}
-      printf ("\n");
-#endif
-    }
-
-  offset_fraction = offset - floor (offset);
-#ifdef DEBUG_SPEW
-  printf ("inital offset: %f, fraction: %f d_offset: %f\n", offset, offset_fraction, d_offset);
-#endif
-  /* ix is selected so that offset_fraction is
-     stops[ix-1] <= offset_fraction <= stops[ix]
-     If offset_fraction is equal to one of the edges, ix
-     is selected so the the section of the line extending
-     in the same direction as d_offset is between ix-1 and ix.
-  */
-  for (ix = 0; ix < n_stops; ix++)
-    if (stops[ix].offset > offset_fraction ||
-	(d_offset < 0.0 && fabs (stops[ix].offset - offset_fraction) < EPSILON))
-      break;
-  if (ix == 0)
-    ix = n_stops - 1;
-  else if (ix == n_stops)
-    ix = n_stops - 1;
-
-#ifdef DEBUG_SPEW
-  printf ("Initial ix: %d\n", ix);
-#endif
-  
-  assert (ix > 0);
-  assert (ix < n_stops);
-  assert ((stops[ix-1].offset <= offset_fraction + EPSILON) ||
-	  ((stops[ix].offset > (1.0 - EPSILON)) && (offset_fraction < EPSILON /* == 0.0*/)));
-  assert (offset_fraction <= stops[ix].offset);
-  /* FIXME: These asserts may be broken, it is for now
-     safer to not use them.  Should be fixed!
-     See bug #121850
-  assert ((offset_fraction != stops[ix-1].offset) ||
-	  (d_offset >= 0.0));
-  assert ((offset_fraction != stops[ix].offset) ||
-	  (d_offset <= 0.0));
-  */
-  
-  while (width > 0)
-    {
-#ifdef DEBUG_SPEW
-      printf ("ix: %d\n", ix);
-      printf ("start offset: %f\n", offset);
-#endif
-      calc_color_at (stops, n_stops,
-		     spread,
-		     offset,
-		     offset_fraction,
-		     (d_offset > -EPSILON),
-		     ix,
-		     color1);
-
-      if (d_offset > 0)
-	next_stop = ix;
-      else
-	next_stop = ix-1;
-
-#ifdef DEBUG_SPEW
-      printf ("next_stop: %d\n", next_stop);
-#endif
-      if (fabs (d_offset) > EPSILON)
-	{
-	  double o;
-	  o = offset_fraction;
-	  
-	  if ((fabs (o) <= EPSILON) && (ix == n_stops - 1))
-	    o = 1.0;
-	  else if ((fabs (o-1.0) <= EPSILON) && (ix == 1))
-	    o = 0.0;
-
-#ifdef DEBUG_SPEW
-	  printf ("o: %f\n", o);
-#endif
-	  len = (int)floor (fabs ((stops[next_stop].offset - o) / d_offset)) + 1;
-	  len = MAX (len, 0);
-	  len = MIN (len, width);
-	}
-      else
-	{
-	  len = width;
-	}
-#ifdef DEBUG_SPEW
-      printf ("len: %d\n", len);
-#endif
-      if (len > 0)
-	{
-	  offset = offset + (len-1) * d_offset;
-	  offset_fraction = offset - floor (offset);
-#ifdef DEBUG_SPEW
-	  printf ("end offset: %f, fraction: %f\n", offset, offset_fraction);
-#endif	  
-	  calc_color_at (stops, n_stops,
-			 spread,
-			 offset,
-			 offset_fraction,
-			 (d_offset < EPSILON),
-			 ix,
-			 color2);
-	  
-	  art_rgba_gradient_run (bufp,
-				 color1,
-				 color2,
-				 len);
-	  offset += d_offset;
-	  offset_fraction = offset - floor (offset);
-	}
-
-      if (d_offset > 0)
-	{
-	  do
-	    {
-	      ix++;
-	      if (ix == n_stops)
-		ix = 1;
-	      /* Note: offset_fraction can actually be one here on x86 machines that
-		 does calculations with extended precision, but later rounds to 64bit.
-		 This happens if the 80bit offset_fraction is larger than the
-		 largest 64bit double that is less than one.
-	      */
-	    }
-	  while (!((stops[ix-1].offset <= offset_fraction &&
-		   offset_fraction < stops[ix].offset) ||
-		   (ix == 1 && offset_fraction > (1.0 - EPSILON)))); 
-	}
-      else
-	{
-	  do
-	    {
-	      ix--;
-	      if (ix == 0)
-		ix = n_stops - 1;
-	    }
-	  while (!((stops[ix-1].offset < offset_fraction &&
-		    offset_fraction <= stops[ix].offset) ||
-		   (ix == n_stops - 1 && offset_fraction < EPSILON /* == 0.0*/)));
-	}
-      
-      bufp += 4*len;
-      width -= len;
-    }
-}
-
-
-/**
- * art_render_gradient_setpix: Set a gradient pixel.
- * @render: The render object.
- * @dst: Pointer to destination (where to store pixel).
- * @n_stops: Number of stops in @stops.
- * @stops: The stops for the gradient.
- * @offset: The offset.
- *
- * @n_stops must be > 0.
- *
- * Sets a gradient pixel, storing it at @dst.
- **/
-static void
-art_render_gradient_setpix (ArtRender *render,
-			    art_u8 *dst,
-			    int n_stops, ArtGradientStop *stops,
-			    double offset)
-{
-  int ix;
-  int j;
-  double off0, off1;
-  int n_ch = render->n_chan + 1;
-
-  for (ix = 0; ix < n_stops; ix++)
-    if (stops[ix].offset > offset)
-      break;
-  /* stops[ix - 1].offset < offset < stops[ix].offset */
-  if (ix > 0 && ix < n_stops)
-    {
-      off0 = stops[ix - 1].offset;
-      off1 = stops[ix].offset;
-      if (fabs (off1 - off0) > EPSILON)
-	{
-	  double interp;
-
-	  interp = (offset - off0) / (off1 - off0);
-	  for (j = 0; j < n_ch; j++)
-	    {
-	      int z0, z1;
-	      int z;
-	      z0 = stops[ix - 1].color[j];
-	      z1 = stops[ix].color[j];
-	      z = floor (z0 + (z1 - z0) * interp + 0.5);
-	      if (render->buf_depth == 8)
-		dst[j] = ART_PIX_8_FROM_MAX (z);
-	      else /* (render->buf_depth == 16) */
-		((art_u16 *)dst)[j] = z;
-	    }
-	  return;
-	}
-    }
-  else if (ix == n_stops)
-    ix--;
-
-  for (j = 0; j < n_ch; j++)
-    {
-      int z;
-      z = stops[ix].color[j];
-      if (render->buf_depth == 8)
-	dst[j] = ART_PIX_8_FROM_MAX (z);
-      else /* (render->buf_depth == 16) */
-	((art_u16 *)dst)[j] = z;
-    }
-}
-
-static void
-art_render_gradient_linear_done (ArtRenderCallback *self, ArtRender *render)
-{
-  art_free (self);
-}
-
-static void
-art_render_gradient_linear_render (ArtRenderCallback *self, ArtRender *render,
-				   art_u8 *dest, int y)
-{
-  ArtImageSourceGradLin *z = (ArtImageSourceGradLin *)self;
-  const ArtGradientLinear *gradient = &(z->gradient);
-  int pixstride = (render->n_chan + 1) * (render->depth >> 3);
-  int x;
-  int width = render->x1 - render->x0;
-  double offset, d_offset;
-  double actual_offset;
-  int n_stops = gradient->n_stops;
-  ArtGradientStop *stops = gradient->stops;
-  art_u8 *bufp = render->image_buf;
-  ArtGradientSpread spread = gradient->spread;
-
-  offset = render->x0 * gradient->a + y * gradient->b + gradient->c;
-  d_offset = gradient->a;
-
-  for (x = 0; x < width; x++)
-    {
-      if (spread == ART_GRADIENT_PAD)
-	actual_offset = offset;
-      else if (spread == ART_GRADIENT_REPEAT)
-	actual_offset = offset - floor (offset);
-      else /* (spread == ART_GRADIENT_REFLECT) */
-	{
-	  double tmp;
-
-	  tmp = offset - 2 * floor (0.5 * offset);
-	  actual_offset = tmp > 1 ? 2 - tmp : tmp;
-	}
-      art_render_gradient_setpix (render, bufp, n_stops, stops, actual_offset);
-      offset += d_offset;
-      bufp += pixstride;
-    }
-}
-
-static void
-art_render_gradient_linear_negotiate (ArtImageSource *self, ArtRender *render,
-				      ArtImageSourceFlags *p_flags,
-				      int *p_buf_depth, ArtAlphaType *p_alpha)
-{
-  if (render->depth == 8 &&
-      render->n_chan == 3)
-    {
-      self->super.render = art_render_gradient_linear_render_8;
-      *p_flags = 0;
-      *p_buf_depth = 8;
-      *p_alpha = ART_ALPHA_PREMUL;
-      return;
-    }
-  
-  self->super.render = art_render_gradient_linear_render;
-  *p_flags = 0;
-  *p_buf_depth = render->depth;
-  *p_alpha = ART_ALPHA_PREMUL;
-}
-
-/**
- * art_render_gradient_linear: Add a linear gradient image source.
- * @render: The render object.
- * @gradient: The linear gradient.
- *
- * Adds the linear gradient @gradient as the image source for rendering
- * in the render object @render.
- **/
-void
-art_render_gradient_linear (ArtRender *render,
-			    const ArtGradientLinear *gradient,
-			    ArtFilterLevel level)
-{
-  ArtImageSourceGradLin *image_source = art_alloc (sizeof (ArtImageSourceGradLin) +
-						   sizeof (ArtGradientStop) * (gradient->n_stops - 1));
-
-  image_source->super.super.render = NULL;
-  image_source->super.super.done = art_render_gradient_linear_done;
-  image_source->super.negotiate = art_render_gradient_linear_negotiate;
-
-  /* copy the gradient into the structure */
-  image_source->gradient = *gradient;
-  image_source->gradient.stops = image_source->stops;
-  memcpy (image_source->gradient.stops, gradient->stops, sizeof (ArtGradientStop) * gradient->n_stops);
-
-  art_render_add_image_source (render, &image_source->super);
-}
-
-static void
-art_render_gradient_radial_done (ArtRenderCallback *self, ArtRender *render)
-{
-  art_free (self);
-}
-
-static void
-art_render_gradient_radial_render (ArtRenderCallback *self, ArtRender *render,
-				   art_u8 *dest, int y)
-{
-  ArtImageSourceGradRad *z = (ArtImageSourceGradRad *)self;
-  const ArtGradientRadial *gradient = &(z->gradient);
-  int pixstride = (render->n_chan + 1) * (render->depth >> 3);
-  int x;
-  int x0 = render->x0;
-  int width = render->x1 - x0;
-  int n_stops = gradient->n_stops;
-  ArtGradientStop *stops = gradient->stops;
-  art_u8 *bufp = render->image_buf;
-  double fx = gradient->fx;
-  double fy = gradient->fy;
-  double dx, dy;
-  const double *affine = gradient->affine;
-  double aff0 = affine[0];
-  double aff1 = affine[1];
-  const double a = z->a;
-  const double arecip = 1.0 / a;
-  double b, db;
-  double c, dc, ddc;
-  double b_a, db_a;
-  double rad, drad, ddrad;
-
-  dx = x0 * aff0 + y * affine[2] + affine[4] - fx;
-  dy = x0 * aff1 + y * affine[3] + affine[5] - fy;
-  b = dx * fx + dy * fy;
-  db = aff0 * fx + aff1 * fy;
-  c = dx * dx + dy * dy;
-  dc = 2 * aff0 * dx + aff0 * aff0 + 2 * aff1 * dy + aff1 * aff1;
-  ddc = 2 * aff0 * aff0 + 2 * aff1 * aff1;
-
-  b_a = b * arecip;
-  db_a = db * arecip;
-
-  rad = b_a * b_a + c * arecip;
-  drad = 2 * b_a * db_a + db_a * db_a + dc * arecip;
-  ddrad = 2 * db_a * db_a + ddc * arecip;
-
-  for (x = 0; x < width; x++)
-    {
-      double z;
-
-      if (rad > 0)
-	z = b_a + sqrt (rad);
-      else
-	z = b_a;
-      art_render_gradient_setpix (render, bufp, n_stops, stops, z);
-      bufp += pixstride;
-      b_a += db_a;
-      rad += drad;
-      drad += ddrad;
-    }
-}
-
-static void
-art_render_gradient_radial_negotiate (ArtImageSource *self, ArtRender *render,
-				      ArtImageSourceFlags *p_flags,
-				      int *p_buf_depth, ArtAlphaType *p_alpha)
-{
-  self->super.render = art_render_gradient_radial_render;
-  *p_flags = 0;
-  *p_buf_depth = render->depth;
-  *p_alpha = ART_ALPHA_PREMUL;
-}
-
-/**
- * art_render_gradient_radial: Add a radial gradient image source.
- * @render: The render object.
- * @gradient: The radial gradient.
- *
- * Adds the radial gradient @gradient as the image source for rendering
- * in the render object @render.
- **/
-void
-art_render_gradient_radial (ArtRender *render,
-			    const ArtGradientRadial *gradient,
-			    ArtFilterLevel level)
-{
-  ArtImageSourceGradRad *image_source = art_alloc (sizeof (ArtImageSourceGradRad) +
-						   sizeof (ArtGradientStop) * (gradient->n_stops - 1));
-  double fx = gradient->fx;
-  double fy = gradient->fy;
-
-  image_source->super.super.render = NULL;
-  image_source->super.super.done = art_render_gradient_radial_done;
-  image_source->super.negotiate = art_render_gradient_radial_negotiate;
-
-  /* copy the gradient into the structure */
-  image_source->gradient = *gradient;
-  image_source->gradient.stops = image_source->stops;
-  memcpy (image_source->gradient.stops, gradient->stops, sizeof (ArtGradientStop) * gradient->n_stops);
-
-  /* todo: sanitycheck fx, fy? */
-  image_source->a = 1 - fx * fx - fy * fy;
-
-  art_render_add_image_source (render, &image_source->super);
-}