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// Copyright (c) 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.
// This file includes all the necessary GL headers and implements some useful
// utilities.
#ifndef GPU_COMMAND_BUFFER_SERVICE_GL_UTILS_H_
#define GPU_COMMAND_BUFFER_SERVICE_GL_UTILS_H_
#include "build/build_config.h"
#include "app/gfx/gl/gl_bindings.h"
// GLES2 defines not part of Desktop GL
// Shader Precision-Specified Types
#define GL_LOW_FLOAT 0x8DF0
#define GL_MEDIUM_FLOAT 0x8DF1
#define GL_HIGH_FLOAT 0x8DF2
#define GL_LOW_INT 0x8DF3
#define GL_MEDIUM_INT 0x8DF4
#define GL_HIGH_INT 0x8DF5
#define GL_IMPLEMENTATION_COLOR_READ_TYPE 0x8B9A
#define GL_IMPLEMENTATION_COLOR_READ_FORMAT 0x8B9B
#define GL_MAX_FRAGMENT_UNIFORM_VECTORS 0x8DFD
#define GL_MAX_VERTEX_UNIFORM_VECTORS 0x8DFB
#define GL_MAX_VARYING_VECTORS 0x8DFC
#define GL_SHADER_BINARY_FORMATS 0x8DF8
#define GL_NUM_SHADER_BINARY_FORMATS 0x8DF9
#define GL_SHADER_COMPILER 0x8DFA
#define GL_RGB565 0x8D62
#define GL_GLEXT_PROTOTYPES 1
// Define this for extra GL error debugging (slower).
// #define GL_ERROR_DEBUGGING
#ifdef GL_ERROR_DEBUGGING
#define CHECK_GL_ERROR() do { \
GLenum gl_error = glGetError(); \
LOG_IF(ERROR, gl_error != GL_NO_ERROR) << "GL Error :" << gl_error; \
} while (0)
#else // GL_ERROR_DEBUGGING
#define CHECK_GL_ERROR() void(0)
#endif // GL_ERROR_DEBUGGING
#endif // GPU_COMMAND_BUFFER_SERVICE_GL_UTILS_H_
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