commit a91bf055eadde278912010b2ef69956de967cf1c
author John Stiles <johnstiles@google.com> Mon May 17 09:34:03 2021 -0400
committer Skia Commit-Bot <skia-commit-bot@chromium.org> Mon May 17 14:19:10 2021 +0000
tree 256ee4820ad77d17311b0ac05d60a4785dcad37c
parent ed0c0ed028adb592df831b03a3c94a3af94390ff

Add support for matrix-scalar operations in SPIR-V.

Multiplication is handled just as before. Ops other than multiplication
are handled by splatting the scalar into a matrix, then performing the
op as a componentwise matrix-op-matrix binary expression.

Change-Id: I654715c45bf5c91b8e9660fdf1c1c6d6818b621a
Bug: skia:11985
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/408637
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>

src/sksl/codegen/SkSLSPIRVCodeGenerator.h

diff --git a/src/sksl/codegen/SkSLSPIRVCodeGenerator.h b/src/sksl/codegen/SkSLSPIRVCodeGenerator.h
index 1623272..d0f6cec 100644
--- a/src/sksl/codegen/SkSLSPIRVCodeGenerator.h
+++ b/src/sksl/codegen/SkSLSPIRVCodeGenerator.h
@@ -249,6 +249,8 @@
 
     SpvId writeConstantVector(const AnyConstructor& c);
 
+    SpvId writeScalarToMatrixSplat(const Type& matrixType, SpvId scalarId, OutputStream& out);
+
     SpvId writeFloatConstructor(const AnyConstructor& c, OutputStream& out);
 
     SpvId castScalarToFloat(SpvId inputId, const Type& inputType, const Type& outputType,