diff options
Diffstat (limited to 'gfx/cairo/win32-composite-src-mod.patch')
| -rw-r--r-- | gfx/cairo/win32-composite-src-mod.patch | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/gfx/cairo/win32-composite-src-mod.patch b/gfx/cairo/win32-composite-src-mod.patch new file mode 100644 index 0000000000..f2f99940a8 --- /dev/null +++ b/gfx/cairo/win32-composite-src-mod.patch @@ -0,0 +1,44 @@ +diff --git a/gfx/cairo/cairo/src/cairo-win32-surface.c b/gfx/cairo/cairo/src/cairo-win32-surface.c +--- a/gfx/cairo/cairo/src/cairo-win32-surface.c ++++ b/gfx/cairo/cairo/src/cairo-win32-surface.c +@@ -928,16 +928,19 @@ _cairo_win32_surface_composite_inner (ca + return _composite_alpha_blend (dst, src, alpha, + src_r.x, src_r.y, src_r.width, src_r.height, + dst_r.x, dst_r.y, dst_r.width, dst_r.height); + } + + return CAIRO_STATUS_SUCCESS; + } + ++/* from pixman-private.h */ ++#define MOD(a,b) ((a) < 0 ? ((b) - ((-(a) - 1) % (b))) - 1 : (a) % (b)) ++ + static cairo_int_status_t + _cairo_win32_surface_composite (cairo_operator_t op, + cairo_pattern_t *pattern, + cairo_pattern_t *mask_pattern, + void *abstract_dst, + int src_x, + int src_y, + int mask_x, +@@ -1209,18 +1212,18 @@ _cairo_win32_surface_composite (cairo_op + /* If we need to repeat, we turn the repeated blit into + * a bunch of piece-by-piece blits. + */ + if (needs_repeat) { + cairo_rectangle_int_t piece_src_r, piece_dst_r; + uint32_t rendered_width = 0, rendered_height = 0; + uint32_t to_render_height, to_render_width; + int32_t piece_x, piece_y; +- int32_t src_start_x = src_r.x % src_extents.width; +- int32_t src_start_y = src_r.y % src_extents.height; ++ int32_t src_start_x = MOD(src_r.x, src_extents.width); ++ int32_t src_start_y = MOD(src_r.y, src_extents.height); + + if (needs_scale) + goto UNSUPPORTED; + + /* If both the src and dest have an image, we may as well fall + * back, because it will be faster than our separate blits. + * Our blit code will be fastest when the src is a DDB and the + * destination is a DDB. |