commit 2210f804e82c1429c336c991ba6df3a6756e77f9
author Ben Clayton <bclayton@google.com> Mon Aug 12 13:55:43 2019 +0100
committer Nicolas Capens <nicolascapens@google.com> Fri Aug 30 19:56:11 2019 +0000
tree 3f1cbee65e627887b65a959bf5a4b96f6b0631de
parent ac69da70cc76f4adfd1be92c4d7536aedfef72c7

Implement non-solid polygon rasterization

Implements Vulkan's 'fillModeNonSolid' feature.

Mostly a copy-and-paste of src/Renderer logic. It sets the batch size
for non-solid triangles to 1 so their edges or vertices can get
individually rasterized as lines or points.

Bug: b/139872671
Tests: dEQP-VK.rasterization.culling.*
Change-Id: Ifbae8dad32e8b43159fee459c75d7e593fc08041
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/35031
Tested-by: Nicolas Capens <nicolascapens@google.com>
Reviewed-by: Ben Clayton <bclayton@google.com>
Reviewed-by: Alexis Hétu <sugoi@google.com>
Kokoro-Presubmit: kokoro <noreply+kokoro@google.com>

src/Vulkan/VkPipeline.cpp

diff --git a/src/Vulkan/VkPipeline.cpp b/src/Vulkan/VkPipeline.cpp
index 89e835d..0e131f1 100644
--- a/src/Vulkan/VkPipeline.cpp
+++ b/src/Vulkan/VkPipeline.cpp
@@ -382,8 +382,7 @@
 
 	const VkPipelineRasterizationStateCreateInfo* rasterizationState = pCreateInfo->pRasterizationState;
 	if((rasterizationState->flags != 0) ||
-	   (rasterizationState->depthClampEnable != VK_FALSE) ||
-	   (rasterizationState->polygonMode != VK_POLYGON_MODE_FILL))
+	   (rasterizationState->depthClampEnable != VK_FALSE))
 	{
 		UNIMPLEMENTED("pCreateInfo->pRasterizationState settings");
 	}
@@ -391,6 +390,7 @@
 	context.rasterizerDiscard = (rasterizationState->rasterizerDiscardEnable == VK_TRUE);
 	context.cullMode = rasterizationState->cullMode;
 	context.frontFace = rasterizationState->frontFace;
+	context.polygonMode = rasterizationState->polygonMode;
 	context.depthBias = (rasterizationState->depthBiasEnable != VK_FALSE) ? rasterizationState->depthBiasConstantFactor : 0.0f;
 	context.slopeDepthBias = (rasterizationState->depthBiasEnable != VK_FALSE) ? rasterizationState->depthBiasSlopeFactor : 0.0f;