Revert 35500 - Added an application framework for demos. Ported hellotriangle...

gpu/demos/app_framework/gles2_utils.cc

-// Copyright (c) 2006-2009 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 "gpu/demos/app_framework/gles2_utils.h"
-
-namespace {
-static const int kInfoBufferLength = 1024;
-}  // namespace
-
-namespace gpu_demos {
-namespace gles2_utils {
-
-GLuint LoadShader(GLenum type, const char* shader_src) {
-  GLuint shader = glCreateShader(type);
-  if (shader == 0) return 0;
-
-  // Load the shader source
-  glShaderSource(shader, 1, &shader_src, NULL);
-  // Compile the shader
-  glCompileShader(shader);
-  // Check the compile status
-  GLint value;
-  glGetShaderiv(shader, GL_COMPILE_STATUS, &value);
-  if (value == 0) {
-    char buffer[kInfoBufferLength];
-    GLsizei length;
-    glGetShaderInfoLog(shader, sizeof(buffer), &length, buffer);
-    std::string log(buffer, length);
-    DLOG(ERROR) << "Error compiling shader:" << log;
-    glDeleteShader(shader);
-    shader = 0;
-  }
-  return shader;
-}
-
-GLuint LoadProgram(const char* v_shader_src, const char* f_shader_src) {
-  GLuint v_shader = LoadShader(GL_VERTEX_SHADER, v_shader_src);
-  if (v_shader == 0) return 0;
-
-  GLuint f_shader = LoadShader(GL_FRAGMENT_SHADER, f_shader_src);
-  if (f_shader == 0) return 0;
-
-  // Create the program object
-  GLuint program_object = glCreateProgram();
-  if (program_object == 0) return 0;
-
-  // Link the program and check status.
-  glAttachShader(program_object, v_shader);
-  glAttachShader(program_object, f_shader);
-  glLinkProgram(program_object);
-  GLint linked = 0;
-  glGetProgramiv(program_object, GL_LINK_STATUS, &linked);
-  if (linked == 0) {
-    char buffer[kInfoBufferLength];
-    GLsizei length;
-    glGetProgramInfoLog(program_object, sizeof(buffer), &length, buffer);
-    std::string log(buffer, length);
-    DLOG(ERROR) << "Error linking program:" << log;
-    glDeleteProgram(program_object);
-    program_object = 0;
-  }
-  return program_object;
-}
-
-}  // namespace gles2_utils
-}  // namespace gpu_demos