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gl: Fix offset for non-texture surface patterns

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Instead of drawing only a portion of the image into the intermediate
texture, draw the entire image and adjust the translation matrix to
compensate.
This commit is contained in:
Martin Robinson 2011-10-13 15:52:57 -07:00 • committed by Chris Wilson
parent c94c3eede0
commit 33c59030b5
1 changed files with 4 additions and 5 deletions
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9
src/cairo-gl-operand.c
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@ -156,7 +156,7 @@ _cairo_gl_pattern_texture_setup (cairo_gl_operand_t *operand,
if (src->surface->backend->type == CAIRO_SURFACE_TYPE_IMAGE) {
status = _cairo_gl_surface_draw_image (surface,
(cairo_image_surface_t *)src->surface,
src_x, src_y,
0, 0,
width, height,
0, 0);
@ -166,9 +166,8 @@ _cairo_gl_pattern_texture_setup (cairo_gl_operand_t *operand,
cairo_surface_t *image;
image = cairo_surface_map_to_image (&surface->base, NULL);
status = _cairo_surface_offset_paint (image, src_x, src_y,
CAIRO_OPERATOR_SOURCE, _src,
NULL);
status = _cairo_surface_paint (image, CAIRO_OPERATOR_SOURCE,
_src, NULL);
cairo_surface_unmap_image (&surface->base, image);
attributes->extend = CAIRO_EXTEND_NONE;
@ -185,7 +184,7 @@ _cairo_gl_pattern_texture_setup (cairo_gl_operand_t *operand,
* (unnormalized src -> unnormalized src) to
* (unnormalized dst -> unnormalized src)
*/
cairo_matrix_init_translate (&m, -dst_x, -dst_y);
cairo_matrix_init_translate (&m, src_x - dst_x, src_y - dst_y);
cairo_matrix_multiply (&attributes->matrix, &m, &src->base.matrix);
/* Translate the matrix from