Add mode for sample qualifier

The sample qualifier forces the use of per sample rendering, so this cl adds a mode for it and detects whether the sample decoration is used in the shader. Bug: b/171415086 Change-Id: Ic59eb45c41f019859eff01de4bf467284de53c0a Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/51730Tested-by: Alexis Hétu <sugoi@google.com> Kokoro-Result: kokoro <noreply+kokoro@google.com> Reviewed-by: Nicolas Capens <nicolascapens@google.com>

Add mode for sample qualifier
8be55746 · Alexis Hetu · Alexis Hétu · 99e54b1c · 8be55746 · 8be55746
Commit 8be55746 authored Jan 14, 2021 by Alexis Hetu Committed by Alexis Hétu Jan 26, 2021
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SpirvShader.cpp src/Pipeline/SpirvShader.cpp +3 -0

SpirvShader.hpp src/Pipeline/SpirvShader.hpp +1 -0

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--- a/src/Pipeline/SpirvShader.cpp
+++ b/src/Pipeline/SpirvShader.cpp
@@ -111,6 +111,9 @@ SpirvShader::SpirvShader(
 					case spv::DecorationInputAttachmentIndex:
 						descriptorDecorations[targetId].InputAttachmentIndex = value;
 						break;
+					case spv::DecorationSample:
+						modes.ContainsSampleQualifier = true;
+						break;
 					default:
 						// Only handling descriptor decorations here.
 						break;

--- a/src/Pipeline/SpirvShader.hpp
+++ b/src/Pipeline/SpirvShader.hpp
@@ -553,6 +553,7 @@ public:
 		bool ContainsKill : 1;
 		bool ContainsControlBarriers : 1;
 		bool NeedsCentroid : 1;
+		bool ContainsSampleQualifier : 1;

 		// Compute workgroup dimensions
 		int WorkgroupSizeX = 1;