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anv/formats: Make alpha blending a property of render targets

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In agreement with the SNB PRM, alpha blending is a property that render
targets may or may not support.

Signed-off-by: Nanley Chery <nanley.g.chery@intel.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
This commit is contained in:
Nanley Chery 2016-05-03 10:08:44 -07:00
parent 9721be6681
commit 2ae493d686
1 changed files with 2 additions and 4 deletions
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6
src/intel/vulkan/anv_formats.c
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@ -329,11 +329,9 @@ get_image_format_properties(int gen, enum isl_format base,
format.swizzle.a == ISL_CHANNEL_SELECT_ALPHA) {
flags |= VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BIT |
VK_FORMAT_FEATURE_BLIT_DST_BIT;
}
if (info->alpha_blend <= gen &&
format.swizzle.a == ISL_CHANNEL_SELECT_ALPHA) {
flags |= VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BLEND_BIT;
if (info->alpha_blend <= gen)
flags |= VK_FORMAT_FEATURE_COLOR_ATTACHMENT_BLEND_BIT;
}
/* Load/store is determined based on base format. This prevents RGB