diff options
| author | Carl Worth <[email protected]> | 2013-01-21 12:18:02 -0800 |
|---|---|---|
| committer | Carl Worth <[email protected]> | 2013-01-23 17:40:24 -0800 |
| commit | b961ba44ed01d4aa590609fc91ab1250ac7d9559 (patch) | |
| tree | bca58d3f515d6c6d1878b76aa5a294d296f96e79 /src/mesa/drivers | |
| parent | 06424376065a4a1e44920a29497936691d88598f (diff) | |
i965: Examine _BaseFormat when deciding to perform xRGB_alpha fixups
The renderbuffer's Format field may have an alpha channel even when the
underlying _BaseFormat does not. This can happen when mesa chooses to use
RGBA16 for an RGB16 format, for example.
So look at _BaseFormat when deciding whether to fixup the blend factors.
This test improves the results of at least the following piglit tests:
EXT_frambebuffer_object/fbo-blending-formats
{GL_RGB10, GL_RGB12, GL_RGB16}
EXT_texture_snorm/fbo-blending-formats
{GL_RGB16_SNORM, GLRGB8_SNORM, GL_RGB_SNORM}
But none of these actually change from FAIL to PASS yet. The R, G, and B probe
values are fixed with this commit, but the tests still fail because the alpha
values are still wrong.
Reviewed-by: Eric Anholt <[email protected]>
Diffstat (limited to 'src/mesa/drivers')
| -rw-r--r-- | src/mesa/drivers/dri/i965/gen6_cc.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/mesa/drivers/dri/i965/gen6_cc.c b/src/mesa/drivers/dri/i965/gen6_cc.c index fcd1794b8f5..d32f6366b7c 100644 --- a/src/mesa/drivers/dri/i965/gen6_cc.c +++ b/src/mesa/drivers/dri/i965/gen6_cc.c @@ -32,6 +32,7 @@ #include "intel_batchbuffer.h" #include "main/macros.h" #include "main/enums.h" +#include "main/glformats.h" static void gen6_upload_blend_state(struct brw_context *brw) @@ -125,7 +126,7 @@ gen6_upload_blend_state(struct brw_context *brw) * not read the alpha channel, but will instead use the correct * implicit value for alpha. */ - if (_mesa_get_format_bits(rb->Format, GL_ALPHA_BITS) == 0) + if (!_mesa_base_format_has_channel(rb->_BaseFormat, GL_TEXTURE_ALPHA_TYPE)) { srcRGB = brw_fix_xRGB_alpha(srcRGB); srcA = brw_fix_xRGB_alpha(srcA); |