1 files changed, 35 insertions, 0 deletions
diff --git a/debian/patches/17-i965_blorp_Add_support_for_blits_between_SRGB_and_linear_formats.patch b/debian/patches/17-i965_blorp_Add_support_for_blits_between_SRGB_and_linear_formats.patch
new file mode 100644
index 0000000000..6de4a101c8
--- /dev/null
+++ b/debian/patches/17-i965_blorp_Add_support_for_blits_between_SRGB_and_linear_formats.patch
@@ -0,0 +1,35 @@
+To: <mesa-dev@lists.freedesktop.org>
+Date: Tue, 11 Sep 2012 16:24:04 -0700
+Subject: [Mesa-dev] [PATCH 1/2] mesa: Ignore SRGB when determining
+ compatible resolve formats.
+
+MSAA resolves and other blit-like operations ignore SRGB state anyway,
+so we should be able to safely allow resolves between compatible
+SRGB/linear formats like SRGBA8 and RGBA8888.
+
+Fixes completely black rendering when using multisampling in L4D2.
+
+NOTE: This is a candidate for the 9.0 branch.
+
+Cc: Paul Berry <stereotype441@gmail.com>
+Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
+---
+ src/mesa/main/fbobject.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/src/mesa/main/fbobject.c b/src/mesa/main/fbobject.c
+index abc9d83..6d9bf35 100644
+--- a/src/mesa/main/fbobject.c
++++ b/src/mesa/main/fbobject.c
+@@ -2802,7 +2802,8 @@ compatible_resolve_formats(const struct gl_renderbuffer *colorReadRb,
+ {
+    /* The simple case where we know the backing formats are the same.
+     */
+-   if (colorReadRb->Format == colorDrawRb->Format) {
++   if (_mesa_get_srgb_format_linear(colorReadRb->Format) ==
++       _mesa_get_srgb_format_linear(colorDrawRb->Format)) {
+       return GL_TRUE;
+    }
+ 
+-- 
+1.7.11.4