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mesa: Ignore SRGB when determining compatible resolve formats.

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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.

This matches the behavior of the nVidia and AMD binary drivers.

Fixes completely black rendering when using multisampling in L4D2.

NOTE: This is a candidate for the 9.0 branch.

Reviewed-by: Paul Berry <stereotype441@gmail.com>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Kenneth Graunke
2012-09-04 11:29:30 -07:00
parent 8504f18c3d
commit c96828ecb4
1 changed files with 2 additions and 1 deletions
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3
src/mesa/main/fbobject.c
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@@ -2792,7 +2792,8 @@ 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;
}