gpu: Add YCbCr 420v extension.

ui/gl/test/gl_test_helper.cc

 // Copyright 2015 The Chromium 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 "ui/gl/test/gl_test_helper.h"
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace gl {
-
 // static
 GLuint GLTestHelper::CreateTexture(GLenum target) {
   // Create the texture object.
   GLuint texture = 0;
   glGenTextures(1, &texture);
   glBindTexture(target, texture);
   glTexParameteri(target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
   glTexParameteri(target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
   glTexParameteri(target, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
   glTexParameteri(target, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
   return texture;
 }
 
 // static
-GLuint GLTestHelper::CompileShader(GLenum type, const char* src) {
-  GLuint shader = glCreateShader(type);
-  // Load the shader source.
-  glShaderSource(shader, 1, &src, nullptr);
-  // Compile the shader.
-  glCompileShader(shader);
-  return shader;
-}
-
-// static
-GLuint GLTestHelper::LoadShader(GLenum type, const char* src) {
-  GLuint shader = CompileShader(type, src);
-
-  // Check the compile status.
-  GLint value = 0;
-  glGetShaderiv(shader, GL_COMPILE_STATUS, &value);
-  if (!value) {
-    char buffer[1024];
-    GLsizei length = 0;
-    glGetShaderInfoLog(shader, sizeof(buffer), &length, buffer);
-    std::string log(buffer, length);
-    EXPECT_EQ(1, value) << "Error compiling shader: " << log;
-    glDeleteShader(shader);
-    shader = 0;
-  }
-  return shader;
-}
-
-// static
-GLuint GLTestHelper::LinkProgram(GLuint vertex_shader, GLuint fragment_shader) {
-  // Create the program object.
-  GLuint program = glCreateProgram();
-  glAttachShader(program, vertex_shader);
-  glAttachShader(program, fragment_shader);
-  // Link the program.
-  glLinkProgram(program);
-  return program;
-}
-
-// static
-GLuint GLTestHelper::SetupProgram(GLuint vertex_shader,
-                                  GLuint fragment_shader) {
-  GLuint program = LinkProgram(vertex_shader, fragment_shader);
-  // Check the link status.
-  GLint linked = 0;
-  glGetProgramiv(program, GL_LINK_STATUS, &linked);
-  if (!linked) {
-    char buffer[1024];
-    GLsizei length = 0;
-    glGetProgramInfoLog(program, sizeof(buffer), &length, buffer);
-    std::string log(buffer, length);
-    EXPECT_EQ(1, linked) << "Error linking program: " << log;
-    glDeleteProgram(program);
-    program = 0;
-  }
-  return program;
-}
-
-// static
 GLuint GLTestHelper::SetupFramebuffer(int width, int height) {
   GLuint color_buffer_texture = CreateTexture(GL_TEXTURE_2D);
   glBindTexture(GL_TEXTURE_2D, color_buffer_texture);
   glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width, height, 0, GL_RGBA,
                GL_UNSIGNED_BYTE, nullptr);
   GLuint framebuffer = 0;
   glGenFramebuffersEXT(1, &framebuffer);
   glBindFramebufferEXT(GL_FRAMEBUFFER, framebuffer);
   glFramebufferTexture2DEXT(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
                             color_buffer_texture, 0);
@@ skipping 35 matching lines @@
         if (bad_count > 16)
           return false;
       }
     }
   }
 
   return !bad_count;
 }
 
 }  // namespace gl