kc3-lang/angle/src/tests/compiler_tests/GLSLCompatibilityOutput_test.cpp

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• Author : Ian Ewell
  Date : 2016-01-21 13:54:28
  Hash : 924b7de2
  Message : Always write to gl_Position when compiling shaders with SH_GLSL_COMPATIBILITY_OUTPUT. BUG=angleproject:1277 Change-Id: Ib820a46151637e8c61e94b966b970de46ccca6b9 Reviewed-on: https://chromium-review.googlesource.com/323160 Reviewed-by: Jamie Madill <jmadill@chromium.org> Tryjob-Request: Jamie Madill <jmadill@chromium.org> Tested-by: Ian Ewell <ewell@google.com>

• src/tests/compiler_tests/GLSLCompatibilityOutput_test.cpp

• //
  // Copyright (c) 2016 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.
  //
  // GLSLCompatibilityOutputTest.cpp
  //   Test compiler output for glsl compatibility mode
  //
  
  #include "angle_gl.h"
  #include "gtest/gtest.h"
  #include "GLSLANG/ShaderLang.h"
  #include "tests/test_utils/compiler_test.h"
  
  class GLSLCompatibilityOutputTest : public testing::Test
  {
    public:
      GLSLCompatibilityOutputTest() {}
  
    protected:
      void compile(const std::string &shaderString)
      {
          int compilationFlags = SH_VARIABLES;
  
          std::string infoLog;
          bool compilationSuccess =
              compileTestShader(GL_VERTEX_SHADER, SH_GLES2_SPEC, SH_GLSL_COMPATIBILITY_OUTPUT,
                                shaderString, compilationFlags, &mTranslatedSource, &infoLog);
          if (!compilationSuccess)
          {
              FAIL() << "Shader compilation failed " << infoLog;
          }
      }
  
      bool find(const char *name) const { return mTranslatedSource.find(name) != std::string::npos; }
  
    private:
      std::string mTranslatedSource;
  };
  
  // Verify gl_Position is written when compiling in compatibility mode
  TEST_F(GLSLCompatibilityOutputTest, GLPositionWrittenTest)
  {
      const std::string &shaderString =
          "precision mediump float;\n"
          "void main() {\n"
          "}";
      compile(shaderString);
      EXPECT_TRUE(find("gl_Position"));
  }