From: Dave Airlie <airlied@redhat.com>
Date: Thu, 24 Nov 2016 00:44:28 +0000 (+0000)
Subject: radv: enable sample shading
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=feef47bb593306aee2854e9bd146543c44d68468;p=mesa.git

radv: enable sample shading

This calculates ps_iter_samples from the minSampleShading input

Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/src/amd/vulkan/radv_device.c b/src/amd/vulkan/radv_device.c
index 111bc7e957f..497ef21c6c8 100644
--- a/src/amd/vulkan/radv_device.c
+++ b/src/amd/vulkan/radv_device.c
@@ -570,7 +570,7 @@ void radv_GetPhysicalDeviceFeatures(
 		.independentBlend                         = true,
 		.geometryShader                           = !is_gfx9,
 		.tessellationShader                       = !is_gfx9,
-		.sampleRateShading                        = false,
+		.sampleRateShading                        = true,
 		.dualSrcBlend                             = true,
 		.logicOp                                  = true,
 		.multiDrawIndirect                        = true,
diff --git a/src/amd/vulkan/radv_pipeline.c b/src/amd/vulkan/radv_pipeline.c
index 84494647c02..496c06a1485 100644
--- a/src/amd/vulkan/radv_pipeline.c
+++ b/src/amd/vulkan/radv_pipeline.c
@@ -1349,7 +1349,9 @@ radv_pipeline_init_multisample_state(struct radv_pipeline *pipeline,
 	else
 		ms->num_samples = 1;
 
-	if (pipeline->shaders[MESA_SHADER_FRAGMENT]->info.fs.force_persample) {
+	if (vkms && vkms->sampleShadingEnable) {
+		ps_iter_samples = ceil(vkms->minSampleShading * ms->num_samples);
+	} else if (pipeline->shaders[MESA_SHADER_FRAGMENT]->info.fs.force_persample) {
 		ps_iter_samples = ms->num_samples;
 	}