commit e1a94c676102105be6fc9ae8b48f567f613f24e8
author Olli Etuaho <oetuaho@nvidia.com> Mon Nov 16 17:35:25 2015 +0200
committer Olli Etuaho <oetuaho@nvidia.com> Fri Nov 20 13:12:30 2015 +0000
tree 18f514650112ad7ae306911d65acdb27d8ebe193
parent 8ca1351a8407f391ca20a95589a23a4fb257493d

Check that texture offset is constant and valid

Offset passed to textureOffset and similar functions must be constant.
See ESSL 3.00 spec section 8.8.

It must also be in the valid range between MIN_PROGRAM_TEXEL_OFFSET and
MAX_PROGRAM_TEXEL_OFFSET. Using values outside the valid range makes
the results of the texture lookup undefined, as specified in GLES 3.0.4
section 3.8.10. We generate a compiler error if an offset is outside the
valid range.

BUG=angleproject:1215
TEST=angle_unittests

Change-Id: Ida28361444d2f4050d516160f1491674c31868a1
Reviewed-on: https://chromium-review.googlesource.com/312223
Reviewed-by: Jamie Madill <jmadill@chromium.org>
Tested-by: Olli Etuaho <oetuaho@nvidia.com>

src/compiler/translator/Compiler.cpp

diff --git a/src/compiler/translator/Compiler.cpp b/src/compiler/translator/Compiler.cpp
index 46dddc6..9002ce6 100644
--- a/src/compiler/translator/Compiler.cpp
+++ b/src/compiler/translator/Compiler.cpp
@@ -213,11 +213,9 @@
         ++firstSource;
     }
 
-    bool debugShaderPrecision = getResources().WEBGL_debug_shader_precision == 1;
     TIntermediate intermediate(infoSink);
-    TParseContext parseContext(symbolTable, extensionBehavior, intermediate,
-                               shaderType, shaderSpec, compileOptions, true,
-                               infoSink, debugShaderPrecision);
+    TParseContext parseContext(symbolTable, extensionBehavior, intermediate, shaderType, shaderSpec,
+                               compileOptions, true, infoSink, getResources());
 
     parseContext.setFragmentPrecisionHighOnESSL1(fragmentPrecisionHigh);
     SetGlobalParseContext(&parseContext);