Reland "Implement statements and expressions in DSL C++ code generator."
This is a reland of 16cbfb41dff107ca3388bacf34201311d3c5f14d
Tests now rely on `shaderDerivativeSupport` and `integerSupport` as
proxies to indicate ES3 support. The SwitchStatement test has been
adjusted to hopefully confuse fewer compilers.
Original change's description:
> Implement statements and expressions in DSL C++ code generator.
>
> This CL removes the bulk of the existing C++ code generator, especially
> all the complex format-string assembly code. It has been replaced with
> actual DSL code generation. Simple IR can now be successfully translated
> to a working DSL fragment processor.
>
> This CL also adds a simple test harness which is patterned after the
> existing SkSLTest; it renders a pixel, reads it back, and fails the test
> if the result isn't solid green (RGBA=0101).
>
> This CL doesn't implement every feature. Some obvious gaps include:
> - Sampling from children
> - Uniforms/inputs of any kind
> - Function calls of any kind
>
> Change-Id: Ib80c23fe1ba4453f7c3cb43b65f93c5ea0deb709
> Bug: skia:11854
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/396757
> Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
> Reviewed-by: Brian Osman <brianosman@google.com>
> Commit-Queue: John Stiles <johnstiles@google.com>
Bug: skia:11854, skia:11891
Change-Id: I91363e31f34611d15ae350b52d6fc459feeace9c
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/399076
Auto-Submit: John Stiles <johnstiles@google.com>
Commit-Queue: Ethan Nicholas <ethannicholas@google.com>
Reviewed-by: Ethan Nicholas <ethannicholas@google.com>
diff --git a/src/sksl/codegen/SkSLGLSLCodeGenerator.h b/src/sksl/codegen/SkSLGLSLCodeGenerator.h
index b1c5347..715d8f8 100644
--- a/src/sksl/codegen/SkSLGLSLCodeGenerator.h
+++ b/src/sksl/codegen/SkSLGLSLCodeGenerator.h
@@ -135,9 +135,9 @@
virtual void writeFunctionCall(const FunctionCall& c);
- void writeAnyConstructor(const AnyConstructor& c, Precedence parentPrecedence);
+ virtual void writeAnyConstructor(const AnyConstructor& c, Precedence parentPrecedence);
- void writeCastConstructor(const AnyConstructor& c, Precedence parentPrecedence);
+ virtual void writeCastConstructor(const AnyConstructor& c, Precedence parentPrecedence);
virtual void writeFieldAccess(const FieldAccess& f);
@@ -148,7 +148,7 @@
void writeShortCircuitWorkaroundExpression(const BinaryExpression& b,
Precedence parentPrecedence);
- void writeTernaryExpression(const TernaryExpression& t, Precedence parentPrecedence);
+ virtual void writeTernaryExpression(const TernaryExpression& t, Precedence parentPrecedence);
virtual void writeIndexExpression(const IndexExpression& expr);