pixman-0.9.5: add upstream alpha copy fix

diff --git a/packages/xorg-lib/pixman-0.9.5/.mtn2git_empty b/packages/xorg-lib/pixman-0.9.5/.mtn2git_empty
new file mode 100644 (file)
index 0000000..e69de29

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 (file)
index 0000000..05fe829
--- /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())
+

diff --git a/packages/xorg-lib/pixman_0.9.5.bb b/packages/xorg-lib/pixman_0.9.5.bb
index f53088e..5183084 100644 (file)
--- a/packages/xorg-lib/pixman_0.9.5.bb
+++ b/packages/xorg-lib/pixman_0.9.5.bb
@@ -3,3 +3,4 @@ require xorg-lib-common.inc
 DESCRIPTION = "Library for lowlevel pixel operations"
 DEPENDS = "virtual/libx11"
 
+SRC_URI += "file://dont-copy-unused-bits-to-alpha-channel.patch;patch=1"