ANGLE: Upgrade to version 1.2.30d6c255d238

The following patches have been changed:

0001-Fix-compilation-for-MSVC-2008-and-std-tuple.patch
  Removed because it is no longer possible to build ANGLE with MSVC2008

0002-Fix-compilation-of-ANGLE-with-mingw-tdm64-gcc-4.8.1.patch
  Removed because the minimum version of MinGW moved to 4.8.2

0005-Fix-build-when-SSE2-is-not-available.patch
  Removed because it was fixed upstream

0006-Fix-compilation-of-libGLESv2-with-older-MinGW-w64-he.patch
  Removed because older versions of MinGW are not supported

0007-Fix-ANGLE-build-with-Microsoft-Visual-Studio-14-CTP.patch
  Removed because it was fixed upstream

Task-number: QTBUG-41903
Change-Id: I976d30802f7f6fee725cf9a9f1325d5e82609835
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>
Reviewed-by: Kai Koehne <kai.koehne@theqtcompany.com>
Reviewed-by: Oliver Wolff <oliver.wolff@theqtcompany.com>

1 files changed, 51 insertions, 12 deletions

diff --git a/src/3rdparty/angle/src/compiler/translator/Compiler.cpp b/src/3rdparty/angle/src/compiler/translator/Compiler.cpp
index 368cd2ae4a..5c62a64d10 100644
--- a/src/3rdparty/angle/src/compiler/translator/Compiler.cpp
+++ b/src/3rdparty/angle/src/compiler/translator/Compiler.cpp
@@ -29,24 +29,27 @@
 
 bool IsWebGLBasedSpec(ShShaderSpec spec)
 {
-     return spec == SH_WEBGL_SPEC || spec == SH_CSS_SHADERS_SPEC;
+    return (spec == SH_WEBGL_SPEC ||
+            spec == SH_CSS_SHADERS_SPEC ||
+            spec == SH_WEBGL2_SPEC);
 }
 
 size_t GetGlobalMaxTokenSize(ShShaderSpec spec)
 {
     // WebGL defines a max token legnth of 256, while ES2 leaves max token
     // size undefined. ES3 defines a max size of 1024 characters.
-    if (IsWebGLBasedSpec(spec))
+    switch (spec)
     {
+      case SH_WEBGL_SPEC:
+      case SH_CSS_SHADERS_SPEC:
         return 256;
-    }
-    else
-    {
+      default:
         return 1024;
     }
 }
 
 namespace {
+
 class TScopedPoolAllocator
 {
   public:
@@ -82,6 +85,24 @@ class TScopedSymbolTableLevel
   private:
     TSymbolTable* mTable;
 };
+
+int MapSpecToShaderVersion(ShShaderSpec spec)
+{
+    switch (spec)
+    {
+      case SH_GLES2_SPEC:
+      case SH_WEBGL_SPEC:
+      case SH_CSS_SHADERS_SPEC:
+        return 100;
+      case SH_GLES3_SPEC:
+      case SH_WEBGL2_SPEC:
+        return 300;
+      default:
+        UNREACHABLE();
+        return 0;
+    }
+}
+
 }  // namespace
 
 TShHandleBase::TShHandleBase()
@@ -178,9 +199,21 @@ bool TCompiler::compile(const char* const shaderStrings[],
         (parseContext.treeRoot != NULL);
 
     shaderVersion = parseContext.getShaderVersion();
+    if (success && MapSpecToShaderVersion(shaderSpec) < shaderVersion)
+    {
+        infoSink.info.prefix(EPrefixError);
+        infoSink.info << "unsupported shader version";
+        success = false;
+    }
 
     if (success)
     {
+        mPragma = parseContext.pragma();
+        if (mPragma.stdgl.invariantAll)
+        {
+            symbolTable.setGlobalInvariant();
+        }
+
         TIntermNode* root = parseContext.treeRoot;
         success = intermediate.postProcess(root);
 
@@ -360,7 +393,8 @@ void TCompiler::setResourceString()
               << ":MaxVertexOutputVectors:" << compileResources.MaxVertexOutputVectors
               << ":MaxFragmentInputVectors:" << compileResources.MaxFragmentInputVectors
               << ":MinProgramTexelOffset:" << compileResources.MinProgramTexelOffset
-              << ":MaxProgramTexelOffset:" << compileResources.MaxProgramTexelOffset;
+              << ":MaxProgramTexelOffset:" << compileResources.MaxProgramTexelOffset
+              << ":NV_draw_buffers:" << compileResources.NV_draw_buffers;
 
     builtInResourcesString = strstream.str();
 }
@@ -377,7 +411,6 @@ void TCompiler::clearResults()
     uniforms.clear();
     expandedUniforms.clear();
     varyings.clear();
-    expandedVaryings.clear();
     interfaceBlocks.clear();
 
     builtInFunctionEmulator.Cleanup();
@@ -507,13 +540,12 @@ void TCompiler::collectVariables(TIntermNode* root)
                                  &uniforms,
                                  &varyings,
                                  &interfaceBlocks,
-                                 hashFunction);
+                                 hashFunction,
+                                 symbolTable);
     root->traverse(&collect);
 
-    // For backwards compatiblity with ShGetVariableInfo, expand struct
-    // uniforms and varyings into separate variables for each field.
-    sh::ExpandVariables(uniforms, &expandedUniforms);
-    sh::ExpandVariables(varyings, &expandedVaryings);
+    // This is for enforcePackingRestriction().
+    sh::ExpandUniforms(uniforms, &expandedUniforms);
 }
 
 bool TCompiler::enforcePackingRestrictions()
@@ -581,3 +613,10 @@ const BuiltInFunctionEmulator& TCompiler::getBuiltInFunctionEmulator() const
 {
     return builtInFunctionEmulator;
 }
+
+void TCompiler::writePragma()
+{
+    TInfoSinkBase &sink = infoSink.obj;
+    if (mPragma.stdgl.invariantAll)
+        sink << "#pragma STDGL invariant(all)\n";
+}