diff options
Diffstat (limited to 'libgnomecanvas/gnome-canvas-clipgroup.c')
| -rw-r--r-- | libgnomecanvas/gnome-canvas-clipgroup.c | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/libgnomecanvas/gnome-canvas-clipgroup.c b/libgnomecanvas/gnome-canvas-clipgroup.c index 350cb643bb..fae19fa60c 100644 --- a/libgnomecanvas/gnome-canvas-clipgroup.c +++ b/libgnomecanvas/gnome-canvas-clipgroup.c @@ -73,20 +73,6 @@ static void gnome_canvas_clipgroup_update (GnomeCanvasItem *i * although I am not sure. */ -#define GCG_BUF_WIDTH 128 -#define GCG_BUF_HEIGHT 128 -#define GCG_BUF_PIXELS (GCG_BUF_WIDTH * GCG_BUF_HEIGHT) -#define GCG_BUF_SIZE (GCG_BUF_WIDTH * GCG_BUF_HEIGHT * 3) - -#define noSHOW_SHADOW - -static guchar *gcg_buf_new (void); -static void gcg_buf_free (guchar *buf); -static guchar *gcg_mask_new (void); -static void gcg_mask_free (guchar *mask); - -static void gnome_canvas_clipgroup_render (GnomeCanvasItem *item, GnomeCanvasBuf *buf); - static GnomeCanvasGroupClass *parent_class; GType @@ -129,7 +115,6 @@ gnome_canvas_clipgroup_class_init (GnomeCanvasClipgroupClass *klass) gobject_class->get_property = gnome_canvas_clipgroup_get_property; item_class->destroy = gnome_canvas_clipgroup_destroy; item_class->update = gnome_canvas_clipgroup_update; - item_class->render = gnome_canvas_clipgroup_render; g_object_class_install_property (gobject_class, PROP_PATH, @@ -292,156 +277,3 @@ gnome_canvas_clipgroup_update (GnomeCanvasItem *item, gdouble *affine, ArtSVP *c item->y2 = MIN (item->y2, cbox.y1 + 1.0); } } - -/* non-premultiplied composition into RGB */ - -#define COMPOSEN11(fc,fa,bc) (((255 - (guint) (fa)) * (guint) (bc) + (guint) (fc) * (guint) (fa) + 127) / 255) - -static void -gnome_canvas_clipgroup_render (GnomeCanvasItem *item, GnomeCanvasBuf *buf) -{ - GnomeCanvasClipgroup *cg; - GnomeCanvasBuf lbuf; - guchar *mask; - - cg = GNOME_CANVAS_CLIPGROUP (item); - - if (cg->svp) { - gint bw, bh, sw, sh; - gint x, y; - - /* fixme: We could optimize background handling (lauris) */ - - if (buf->is_bg) { - gnome_canvas_buf_ensure_buf (buf); - buf->is_bg = FALSE; - buf->is_buf = TRUE; - } - - bw = buf->rect.x1 - buf->rect.x0; - bh = buf->rect.y1 - buf->rect.y0; - if ((bw < 1) || (bh < 1)) return; - - if (bw * bh <= GCG_BUF_PIXELS) { - /* We can go with single buffer */ - sw = bw; - sh = bh; - } else if (bw <= (GCG_BUF_PIXELS >> 3)) { - /* Go with row buffer */ - sw = bw; - sh = GCG_BUF_PIXELS / bw; - } else if (bh <= (GCG_BUF_PIXELS >> 3)) { - /* Go with column buffer */ - sw = GCG_BUF_PIXELS / bh; - sh = bh; - } else { - /* Tile buffer */ - sw = GCG_BUF_WIDTH; - sh = GCG_BUF_HEIGHT; - } - - /* Set up local buffer */ - lbuf.buf = gcg_buf_new (); - lbuf.bg_color = buf->bg_color; - lbuf.is_bg = FALSE; - lbuf.is_buf = TRUE; - /* Allocate mask */ - mask = gcg_mask_new (); - - for (y = buf->rect.y0; y < buf->rect.y1; y += sh) { - for (x = buf->rect.x0; x < buf->rect.x1; x += sw) { - gint r, xx, yy; - /* Set up local buffer */ - lbuf.rect.x0 = x; - lbuf.rect.y0 = y; - lbuf.rect.x1 = MIN (x + sw, buf->rect.x1); - lbuf.rect.y1 = MIN (y + sh, buf->rect.y1); - lbuf.buf_rowstride = 3 * (lbuf.rect.x1 - lbuf.rect.x0); - /* Copy background */ - for (r = lbuf.rect.y0; r < lbuf.rect.y1; r++) { - memcpy (lbuf.buf + (r - lbuf.rect.y0) * lbuf.buf_rowstride, - buf->buf + (r - buf->rect.y0) * buf->buf_rowstride + (x - buf->rect.x0) * 3, - (lbuf.rect.x1 - lbuf.rect.x0) * 3); - } - /* Invoke render method */ - if (((GnomeCanvasItemClass *) parent_class)->render) - ((GnomeCanvasItemClass *) parent_class)->render (item, &lbuf); - /* Render mask */ - art_gray_svp_aa (cg->svp, lbuf.rect.x0, lbuf.rect.y0, lbuf.rect.x1, lbuf.rect.y1, - mask, lbuf.rect.x1 - lbuf.rect.x0); - /* Combine */ - for (yy = lbuf.rect.y0; yy < lbuf.rect.y1; yy++) { - guchar *s, *m, *d; - s = lbuf.buf + (yy - lbuf.rect.y0) * lbuf.buf_rowstride; - m = mask + (yy - lbuf.rect.y0) * (lbuf.rect.x1 - lbuf.rect.x0); - d = buf->buf + (yy - buf->rect.y0) * buf->buf_rowstride + (x - buf->rect.x0) * 3; - for (xx = lbuf.rect.x0; xx < lbuf.rect.x1; xx++) { -#ifndef SHOW_SHADOW - d[0] = COMPOSEN11 (s[0], m[0], d[0]); - d[1] = COMPOSEN11 (s[1], m[0], d[1]); - d[2] = COMPOSEN11 (s[2], m[0], d[2]); -#else - d[0] = COMPOSEN11 (s[0], m[0] | 0x7f, d[0]); - d[1] = COMPOSEN11 (s[1], m[0] | 0x7f, d[1]); - d[2] = COMPOSEN11 (s[2], m[0] | 0x7f, d[2]); -#endif - s += 3; - m += 1; - d += 3; - } - } - } - } - /* Free buffers */ - gcg_mask_free (mask); - gcg_buf_free (lbuf.buf); - } else { - if (((GnomeCanvasItemClass *) parent_class)->render) - ((GnomeCanvasItemClass *) parent_class)->render (item, buf); - } -} - -static GSList *gcg_buffers = NULL; -static GSList *gcg_masks = NULL; - -static guchar * -gcg_buf_new (void) -{ - guchar *buf; - - if (!gcg_buffers) { - buf = g_new (guchar, GCG_BUF_SIZE); - } else { - buf = (guchar *) gcg_buffers->data; - gcg_buffers = g_slist_remove (gcg_buffers, buf); - } - - return buf; -} - -static void -gcg_buf_free (guchar *buf) -{ - gcg_buffers = g_slist_prepend (gcg_buffers, buf); -} - -static guchar * -gcg_mask_new (void) -{ - guchar *mask; - - if (!gcg_masks) { - mask = g_new (guchar, GCG_BUF_PIXELS); - } else { - mask = (guchar *) gcg_masks->data; - gcg_masks = g_slist_remove (gcg_masks, mask); - } - - return mask; -} - -static void -gcg_mask_free (guchar *mask) -{ - gcg_masks = g_slist_prepend (gcg_masks, mask); -} |