Add support for matrix division to Metal codegen.
This CL adds a polyfill for componentwise matrix/matrix division to
Metal, as well as matrix/=matrix. Matrix/scalar and scalar/matrix
division work by splatting the scalar out to a matrix (handled in the
prior CL, http://review.skia.org/407616) and then performing
componentwise matrix/matrix division.
Working demonstration (copy-pasted from the Metal output file):
http://screen/BrqyPcbPrB7Dy4m
Change-Id: I6a8b97783be3485f7ffee551b669d14bc58e7568
Bug: skia:11125
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/407796
Commit-Queue: John Stiles <johnstiles@google.com>
Auto-Submit: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
diff --git a/src/sksl/codegen/SkSLMetalCodeGenerator.h b/src/sksl/codegen/SkSLMetalCodeGenerator.h
index 02794ad..7d5fa5a 100644
--- a/src/sksl/codegen/SkSLMetalCodeGenerator.h
+++ b/src/sksl/codegen/SkSLMetalCodeGenerator.h
@@ -182,6 +182,8 @@
void writeMatrixTimesEqualHelper(const Type& left, const Type& right, const Type& result);
+ void writeMatrixDivisionHelpers(const Type& type);
+
void writeMatrixEqualityHelpers(const Type& left, const Type& right);
void writeArrayEqualityHelpers(const Type& type);