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authorJason Ekstrand <[email protected]>2019-05-17 13:04:24 -0500
committerJason Ekstrand <[email protected]>2019-05-17 20:33:57 +0000
commit1c92358bd89313b0cf7bf7b84992a28f11b2aa8f (patch)
tree23b4967a5f3b8899020308277ba1eebe836992f6 /src/intel/vulkan/anv_pipeline.c
parent8413fd136c5f82cf8742ea306e139ac5d7bc18f3 (diff)
anv: Only consider minSampleShading when sampleShadingEnable is set
From the Vulkan 1.1.107 spec: Sample shading is enabled for a graphics pipeline: - If the interface of the fragment shader entry point of the graphics pipeline includes an input variable decorated with SampleId or SamplePosition. In this case minSampleShadingFactor takes the value 1.0. - Else if the sampleShadingEnable member of the VkPipelineMultisampleStateCreateInfo structure specified when creating the graphics pipeline is set to VK_TRUE. In this case minSampleShadingFactor takes the value of VkPipelineMultisampleStateCreateInfo::minSampleShading. Otherwise, sample shading is considered disabled. In other words, if sampleShadingEnable is set to VK_FALSE, we should ignore minSampleShading. Cc: [email protected] Reviewed-by: Lionel Landwerlin <[email protected]>
Diffstat (limited to 'src/intel/vulkan/anv_pipeline.c')
-rw-r--r--src/intel/vulkan/anv_pipeline.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/src/intel/vulkan/anv_pipeline.c b/src/intel/vulkan/anv_pipeline.c
index 77cee59e0b7..4012a6d5a71 100644
--- a/src/intel/vulkan/anv_pipeline.c
+++ b/src/intel/vulkan/anv_pipeline.c
@@ -400,12 +400,12 @@ populate_wm_prog_key(const struct gen_device_info *devinfo,
* harmless to compute it and then let dead-code take care of it.
*/
if (ms_info->rasterizationSamples > 1) {
- key->persample_interp =
+ key->persample_interp = ms_info->sampleShadingEnable &&
(ms_info->minSampleShading * ms_info->rasterizationSamples) > 1;
key->multisample_fbo = true;
}
- key->frag_coord_adds_sample_pos = ms_info->sampleShadingEnable;
+ key->frag_coord_adds_sample_pos = key->persample_interp;
}
}