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authorSteve Block <steveblock@google.com>2011-05-06 11:45:16 +0100
committerSteve Block <steveblock@google.com>2011-05-12 13:44:10 +0100
commitcad810f21b803229eb11403f9209855525a25d57 (patch)
tree29a6fd0279be608e0fe9ffe9841f722f0f4e4269 /Source/WebCore/platform/graphics/cairo/rgb24-hacks.txt
parent121b0cf4517156d0ac5111caf9830c51b69bae8f (diff)
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Merge WebKit at r75315: Initial merge by git.
Change-Id: I570314b346ce101c935ed22a626b48c2af266b84
Diffstat (limited to 'Source/WebCore/platform/graphics/cairo/rgb24-hacks.txt')
-rw-r--r--Source/WebCore/platform/graphics/cairo/rgb24-hacks.txt32
1 files changed, 32 insertions, 0 deletions
diff --git a/Source/WebCore/platform/graphics/cairo/rgb24-hacks.txt b/Source/WebCore/platform/graphics/cairo/rgb24-hacks.txt
new file mode 100644
index 0000000..59f8070
--- /dev/null
+++ b/Source/WebCore/platform/graphics/cairo/rgb24-hacks.txt
@@ -0,0 +1,32 @@
+Index: cairo/src/cairo-win32-surface.c
+===================================================================
+--- cairo/src/cairo-win32-surface.c (revision 14498)
++++ cairo/src/cairo-win32-surface.c (working copy)
+@@ -824,8 +824,13 @@
+ * to figure out when we can use GDI. We don't have that checking
+ * anywhere at the moment, so just bail and use the fallback
+ * paths. */
+- if (surface->format != CAIRO_FORMAT_RGB24)
+- return CAIRO_INT_STATUS_UNSUPPORTED;
++ //if (surface->format != CAIRO_FORMAT_RGB24)
++ // return CAIRO_INT_STATUS_UNSUPPORTED;
++ // FIXME: We'll go ahead and optimize this now and just assume we're ok if
++ // the color has no alpha. Probably need to check various composite operators to
++ // get this exactly right.
++ if (color->alpha != 1.0)
++ return CAIRO_INT_STATUS_UNSUPPORTED;
+
+ /* Optimize for no destination alpha (surface->pixman_image is non-NULL for all
+ * surfaces with alpha.)
+@@ -1016,8 +1021,9 @@
+
+ /* We can only handle operator SOURCE or OVER with the destination
+ * having no alpha */
+- if ((op != CAIRO_OPERATOR_SOURCE && op != CAIRO_OPERATOR_OVER) ||
+- (dst->format != CAIRO_FORMAT_RGB24))
++ if ((op != CAIRO_OPERATOR_SOURCE && op != CAIRO_OPERATOR_OVER))
++ // FIXME: It's not clear why ExtTextOut can't be called when the
++ // destination has alpha. Remove the RGB24 restriction. || (dst->format != CAIRO_FORMAT_RGB24))
+ return CAIRO_INT_STATUS_UNSUPPORTED;
+
+ /* If we have a fallback mask clip set on the dst, we have