diff options
Diffstat (limited to 'packages/xorg-lib/pixman-0.9.5/dont-copy-unused-bits-to-alpha-channel.patch')
| -rw-r--r-- | packages/xorg-lib/pixman-0.9.5/dont-copy-unused-bits-to-alpha-channel.patch | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/packages/xorg-lib/pixman-0.9.5/dont-copy-unused-bits-to-alpha-channel.patch b/packages/xorg-lib/pixman-0.9.5/dont-copy-unused-bits-to-alpha-channel.patch new file mode 100644 index 0000000000..05fe829a82 --- /dev/null +++ b/packages/xorg-lib/pixman-0.9.5/dont-copy-unused-bits-to-alpha-channel.patch @@ -0,0 +1,29 @@ +From: Carl Worth <cworth@cworth.org> + +Don't copy unused bits to an alpha channel + +This bug was identified by cairo's rgb24-ignore-alpha test which +blends RGB24 over ARGB32 and notices that "alpha" values are +making it from the source to the destination. + +Index: a/pixman/pixman-pict.c +=================================================================== +--- a/pixman/pixman-pict.c b8b7b767b3ed1fc57ba177c38187e1eb3daf4de8 ++++ b/pixman/pixman-pict.c c7d73fc532c2da313041906ac0f48dba1b10d3bc +@@ -1778,7 +1778,6 @@ pixman_image_composite (pixman_op_t + break; + case PIXMAN_x8r8g8b8: + switch (pDst->bits.format) { +- case PIXMAN_a8r8g8b8: + case PIXMAN_x8r8g8b8: + #ifdef USE_MMX + if (pixman_have_mmx()) +@@ -1790,7 +1789,6 @@ pixman_image_composite (pixman_op_t + } + case PIXMAN_x8b8g8r8: + switch (pDst->bits.format) { +- case PIXMAN_a8b8g8r8: + case PIXMAN_x8b8g8r8: + #ifdef USE_MMX + if (pixman_have_mmx()) + |