kc3-lang/angle/src/tests/gl_tests/ProgramBinaryTest.cpp

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• Author : Corentin Wallez
  Date : 2015-05-14 11:07:48
  Hash : d3970de4
  Message : Move ANGLETest back in test_utils, leaving a proxy header for Chromium BUG=angleproject:892 Change-Id: Ibd494813be87e996096077d6e208cc92461b8f49 Reviewed-on: https://chromium-review.googlesource.com/271154 Reviewed-by: Jamie Madill <jmadill@chromium.org> Tested-by: Corentin Wallez <cwallez@chromium.org>

• src/tests/gl_tests/ProgramBinaryTest.cpp

• //
  // Copyright 2015 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 "test_utils/ANGLETest.h"
  
  #include <memory>
  #include <stdint.h>
  
  using namespace angle;
  
  class ProgramBinaryTest : public ANGLETest
  {
    protected:
      ProgramBinaryTest()
      {
          setWindowWidth(128);
          setWindowHeight(128);
          setConfigRedBits(8);
          setConfigGreenBits(8);
          setConfigBlueBits(8);
          setConfigAlphaBits(8);
      }
  
      virtual void SetUp()
      {
          ANGLETest::SetUp();
  
          const std::string vertexShaderSource = SHADER_SOURCE
          (
              attribute vec4 inputAttribute;
              void main()
              {
                  gl_Position = inputAttribute;
              }
          );
  
          const std::string fragmentShaderSource = SHADER_SOURCE
          (
              void main()
              {
                  gl_FragColor = vec4(1,0,0,1);
              }
          );
  
          mProgram = CompileProgram(vertexShaderSource, fragmentShaderSource);
          if (mProgram == 0)
          {
              FAIL() << "shader compilation failed.";
          }
  
          glGenBuffers(1, &mBuffer);
          glBindBuffer(GL_ARRAY_BUFFER, mBuffer);
          glBufferData(GL_ARRAY_BUFFER, 128, NULL, GL_STATIC_DRAW);
          glBindBuffer(GL_ARRAY_BUFFER, 0);
  
          ASSERT_GL_NO_ERROR();
      }
  
      virtual void TearDown()
      {
          glDeleteProgram(mProgram);
          glDeleteBuffers(1, &mBuffer);
  
          ANGLETest::TearDown();
      }
  
      GLuint mProgram;
      GLuint mBuffer;
  };
  
  // This tests the assumption that float attribs of different size
  // should not internally cause a vertex shader recompile (for conversion).
  TEST_P(ProgramBinaryTest, FloatDynamicShaderSize)
  {
      glUseProgram(mProgram);
      glBindBuffer(GL_ARRAY_BUFFER, mBuffer);
  
      glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, 8, NULL);
      glEnableVertexAttribArray(0);
      glDrawArrays(GL_POINTS, 0, 1);
  
      GLint programLength;
      glGetProgramiv(mProgram, GL_PROGRAM_BINARY_LENGTH_OES, &programLength);
  
      EXPECT_GL_NO_ERROR();
  
      for (GLsizei size = 1; size <= 3; size++)
      {
          glVertexAttribPointer(0, size, GL_FLOAT, GL_FALSE, 8, NULL);
          glEnableVertexAttribArray(0);
          glDrawArrays(GL_POINTS, 0, 1);
  
          GLint newProgramLength;
          glGetProgramiv(mProgram, GL_PROGRAM_BINARY_LENGTH_OES, &newProgramLength);
          EXPECT_GL_NO_ERROR();
          EXPECT_EQ(programLength, newProgramLength);
      }
  }
  
  // This tests the ability to successfully save and load a program binary.
  TEST_P(ProgramBinaryTest, SaveAndLoadBinary)
  {
      GLint programLength = 0;
      GLint writtenLength = 0;
      GLenum binaryFormat = 0;
  
      glGetProgramiv(mProgram, GL_PROGRAM_BINARY_LENGTH_OES, &programLength);
      EXPECT_GL_NO_ERROR();
  
      std::vector<uint8_t> binary(programLength);
      glGetProgramBinaryOES(mProgram, programLength, &writtenLength, &binaryFormat, binary.data());
      EXPECT_GL_NO_ERROR();
  
      // The lengths reported by glGetProgramiv and glGetProgramBinaryOES should match
      EXPECT_EQ(programLength, writtenLength);
  
      if (writtenLength)
      {
          GLuint program2 = glCreateProgram();
          glProgramBinaryOES(program2, binaryFormat, binary.data(), writtenLength);
  
          EXPECT_GL_NO_ERROR();
  
          GLint linkStatus;
          glGetProgramiv(program2, GL_LINK_STATUS, &linkStatus);
          if (linkStatus == 0)
          {
              GLint infoLogLength;
              glGetProgramiv(program2, GL_INFO_LOG_LENGTH, &infoLogLength);
  
              if (infoLogLength > 0)
              {
                  std::vector<GLchar> infoLog(infoLogLength);
                  glGetProgramInfoLog(program2, infoLog.size(), NULL, &infoLog[0]);
                  FAIL() << "program link failed: " << &infoLog[0];
              }
              else
              {
                  FAIL() << "program link failed.";
              }
          }
          else
          {
              glUseProgram(program2);
              glBindBuffer(GL_ARRAY_BUFFER, mBuffer);
  
              glVertexAttribPointer(0, 4, GL_FLOAT, GL_FALSE, 8, NULL);
              glEnableVertexAttribArray(0);
              glDrawArrays(GL_POINTS, 0, 1);
  
              EXPECT_GL_NO_ERROR();
          }
  
          glDeleteProgram(program2);
      }
  }
  
  // Use this to select which configurations (e.g. which renderer, which GLES major version) these tests should be run against.
  ANGLE_INSTANTIATE_TEST(ProgramBinaryTest, ES2_D3D9(), ES2_D3D11());