1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/gfx/cairo/win32-composite-src-mod.patch Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,44 @@
1.4 +diff --git a/gfx/cairo/cairo/src/cairo-win32-surface.c b/gfx/cairo/cairo/src/cairo-win32-surface.c
1.5 +--- a/gfx/cairo/cairo/src/cairo-win32-surface.c
1.6 ++++ b/gfx/cairo/cairo/src/cairo-win32-surface.c
1.7 +@@ -928,16 +928,19 @@ _cairo_win32_surface_composite_inner (ca
1.8 + return _composite_alpha_blend (dst, src, alpha,
1.9 + src_r.x, src_r.y, src_r.width, src_r.height,
1.10 + dst_r.x, dst_r.y, dst_r.width, dst_r.height);
1.11 + }
1.12 +
1.13 + return CAIRO_STATUS_SUCCESS;
1.14 + }
1.15 +
1.16 ++/* from pixman-private.h */
1.17 ++#define MOD(a,b) ((a) < 0 ? ((b) - ((-(a) - 1) % (b))) - 1 : (a) % (b))
1.18 ++
1.19 + static cairo_int_status_t
1.20 + _cairo_win32_surface_composite (cairo_operator_t op,
1.21 + cairo_pattern_t *pattern,
1.22 + cairo_pattern_t *mask_pattern,
1.23 + void *abstract_dst,
1.24 + int src_x,
1.25 + int src_y,
1.26 + int mask_x,
1.27 +@@ -1209,18 +1212,18 @@ _cairo_win32_surface_composite (cairo_op
1.28 + /* If we need to repeat, we turn the repeated blit into
1.29 + * a bunch of piece-by-piece blits.
1.30 + */
1.31 + if (needs_repeat) {
1.32 + cairo_rectangle_int_t piece_src_r, piece_dst_r;
1.33 + uint32_t rendered_width = 0, rendered_height = 0;
1.34 + uint32_t to_render_height, to_render_width;
1.35 + int32_t piece_x, piece_y;
1.36 +- int32_t src_start_x = src_r.x % src_extents.width;
1.37 +- int32_t src_start_y = src_r.y % src_extents.height;
1.38 ++ int32_t src_start_x = MOD(src_r.x, src_extents.width);
1.39 ++ int32_t src_start_y = MOD(src_r.y, src_extents.height);
1.40 +
1.41 + if (needs_scale)
1.42 + goto UNSUPPORTED;
1.43 +
1.44 + /* If both the src and dest have an image, we may as well fall
1.45 + * back, because it will be faster than our separate blits.
1.46 + * Our blit code will be fastest when the src is a DDB and the
1.47 + * destination is a DDB.
