Remove invariant declaration in vertex shader for translation from ESSL 3.00 to GLSL <= 4.1
This is a follow-up patch of
https://chromium-review.googlesource.com/408569. This CL removes
invariant declaration in ESSL 3.00 vertex shader, such like:
"
out vec4 foo;
invariant foo;
"
This CL also adds the workarounds in libANGLE.
BUG=chromium:639760
TEST=webgl2_conformance
Change-Id: I568ab51a9a2f5da10d1aff0b63aae8805097e081
Reviewed-on: https://chromium-review.googlesource.com/409157
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>
diff --git a/src/compiler/translator/Compiler.h b/src/compiler/translator/Compiler.h
index 42983a4..42b4f8f 100644
--- a/src/compiler/translator/Compiler.h
+++ b/src/compiler/translator/Compiler.h
@@ -45,6 +45,14 @@
bool IsGLSL410OrOlder(ShShaderOutput output);
//
+// Helper function to check if the invariant qualifier can be removed.
+//
+bool RemoveInvariant(sh::GLenum shaderType,
+ int shaderVersion,
+ ShShaderOutput outputType,
+ ShCompileOptions compileOptions);
+
+//
// The base class used to back handles returned to the driver.
//
class TShHandleBase {