Wire up FragDepth builtin

Bug: b/118386749 Test: dEQP-VK.renderpass.* Test: dEQP-VK.glsl.* Change-Id: I1f830c3fbe5b1f6bca0a6f17dd37fffd00e0cfa3 Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/29249Tested-by: Chris Forbes <chrisforbes@google.com> Presubmit-Ready: Chris Forbes <chrisforbes@google.com> Reviewed-by: Nicolas Capens <nicolascapens@google.com>

Wire up FragDepth builtin
7288151c · Chris Forbes · 91cf5ad4 · 7288151c
Commit 7288151c authored Apr 15, 2019 by Chris Forbes
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PixelProgram.cpp src/Pipeline/PixelProgram.cpp +6 -0

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--- a/src/Pipeline/PixelProgram.cpp
+++ b/src/Pipeline/PixelProgram.cpp
@@ -71,6 +71,12 @@ namespace sw
 			}
 		}

+		it = spirvShader->outputBuiltins.find(spv::BuiltInFragDepth);
+		if (it != spirvShader->outputBuiltins.end())
+		{
+			oDepth = routine.getVariable(it->second.Id)[it->second.FirstComponent];
+		}
+
 		if(spirvShader->getModes().DepthReplacing)
 		{
 			oDepth = Min(Max(oDepth, Float4(0.0f)), Float4(1.0f));