kc3-lang/angle/src/compiler/translator/TranslatorESSL.cpp

• Show log

  Commit

• Hash : 94ac7b78
  Author :
  Date : 2014-10-15T18:22:08
  

  Invariant related processing.
  
  * Fix a bug in PreProcessor for STDGL pragma.
  * Record all invariant settings and set them in ShaderVariable.
  * Write #pragma STDGL invariant(all) in GL
  
  BUG=angle:776
  TEST=https://www.khronos.org/registry/webgl/sdk/tests/conformance/glsl/misc/shaders-with-invariance.html
  
  Change-Id: Ie28b75480deed79f0c9f26e3b98f1778d1290182
  Reviewed-on: https://chromium-review.googlesource.com/223610
  Tested-by: Zhenyao Mo <zmo@chromium.org>
  Reviewed-by: Jamie Madill <jmadill@chromium.org>
  

Download

• src/compiler/translator/TranslatorESSL.cpp

• //
  // Copyright (c) 2002-2013 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  
  #include "compiler/translator/TranslatorESSL.h"
  
  #include "compiler/translator/OutputESSL.h"
  #include "angle_gl.h"
  
  TranslatorESSL::TranslatorESSL(sh::GLenum type, ShShaderSpec spec)
      : TCompiler(type, spec, SH_ESSL_OUTPUT) {
  }
  
  void TranslatorESSL::translate(TIntermNode* root) {
      TInfoSinkBase& sink = getInfoSink().obj;
  
      writePragma();
  
      // Write built-in extension behaviors.
      writeExtensionBehavior();
  
      // Write emulated built-in functions if needed.
      getBuiltInFunctionEmulator().OutputEmulatedFunctionDefinition(
          sink, getShaderType() == GL_FRAGMENT_SHADER);
  
      // Write array bounds clamping emulation if needed.
      getArrayBoundsClamper().OutputClampingFunctionDefinition(sink);
  
      // Write translated shader.
      TOutputESSL outputESSL(sink, getArrayIndexClampingStrategy(), getHashFunction(), getNameMap(), getSymbolTable(), getShaderVersion());
      root->traverse(&outputESSL);
  }
  
  void TranslatorESSL::writeExtensionBehavior() {
      TInfoSinkBase& sink = getInfoSink().obj;
      const TExtensionBehavior& extensionBehavior = getExtensionBehavior();
      for (TExtensionBehavior::const_iterator iter = extensionBehavior.begin();
           iter != extensionBehavior.end(); ++iter) {
          if (iter->second != EBhUndefined) {
              if (getResources().NV_draw_buffers && iter->first == "GL_EXT_draw_buffers") {
                  sink << "#extension GL_NV_draw_buffers : "
                       << getBehaviorString(iter->second) << "\n";
              } else {
                  sink << "#extension " << iter->first << " : "
                       << getBehaviorString(iter->second) << "\n";
              }
          }
      }
  }
  

Download