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/**************************************************************************
*
* Copyright 2011 Jose Fonseca
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*
**************************************************************************/
#ifndef _GLSTATE_INTERNAL_HPP_
#define _GLSTATE_INTERNAL_HPP_
#include "glimports.hpp"
#include "glproc.hpp"
#include "image.hpp"
class JSONWriter;
namespace glstate {
struct Context
{
bool ES;
bool core;
bool ARB_draw_buffers;
bool ARB_sampler_objects;
bool KHR_debug;
bool EXT_debug_label;
Context(void);
void
resetPixelPackState(void);
void
restorePixelPackState(void);
private:
// Pack state
GLint pack_alignment;
GLint pack_image_height;
GLint pack_lsb_first;
GLint pack_row_length;
GLint pack_skip_images;
GLint pack_skip_pixels;
GLint pack_skip_rows;
GLint pack_swap_bytes;
GLint pixel_pack_buffer_binding;
};
static inline void
flushErrors(void) {
while (glGetError() != GL_NO_ERROR) {
}
}
const char *
formatToString(GLenum internalFormat);
struct InternalFormatDesc
{
GLenum internalFormat;
/* The external format/type that matches the internalFormat exactly, or GL_NONE. */
GLenum format;
GLenum type;
};
const InternalFormatDesc &
getInternalFormatDesc(GLenum internalFormat);
void
chooseReadBackFormat(const InternalFormatDesc &formatDesc, GLenum &format, GLenum &type);
void
getImageFormat(GLenum format, GLenum type,
GLuint &channels, image::ChannelType &channelType);
bool
isGeometryShaderBound(Context &context);
void dumpBoolean(JSONWriter &json, GLboolean value);
void dumpEnum(JSONWriter &json, GLenum pname);
char *
getObjectLabel(Context &context, GLenum identifier, GLuint name);
void dumpObjectLabel(JSONWriter &json, Context &context, GLenum identifier, GLuint name, const char *member);
void dumpParameters(JSONWriter &json, Context &context);
void dumpShadersUniforms(JSONWriter &json, Context &context);
void dumpTextures(JSONWriter &json, Context &context);
void dumpFramebuffer(JSONWriter &json, Context &context);
} /* namespace glstate */
#endif /* _GLSTATE_INTERNAL_HPP_ */
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