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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.
*
**************************************************************************/
#pragma once
#include <string.h>
#include <stdlib.h>
#include <map>
#include "glimports.hpp"
#include "glprofile.hpp"
namespace gltrace {
/**
* OpenGL ES buffers cannot be read. This class is used to track index buffer
* contents.
*/
class Buffer {
public:
GLsizeiptr size;
GLvoid *data;
Buffer() :
size(0),
data(0)
{}
~Buffer() {
free(data);
}
void
bufferData(GLsizeiptr new_size, const void *new_data) {
if (new_size < 0) {
new_size = 0;
}
size = new_size;
data = realloc(data, new_size);
if (new_size && new_data) {
memcpy(data, new_data, size);
}
}
void
bufferSubData(GLsizeiptr offset, GLsizeiptr length, const void *new_data) {
if (offset >= 0 && offset < size && length > 0 && offset + length <= size && new_data) {
memcpy((GLubyte *)data + offset, new_data, length);
}
}
void
getSubData(GLsizeiptr offset, GLsizeiptr length, void *out_data) {
if (offset >= 0 && offset < size && length > 0 && offset + length <= size && out_data) {
memcpy(out_data, (GLubyte *)data + offset, length);
}
}
};
class Context {
public:
glprofile::Profile profile;
bool user_arrays;
bool user_arrays_nv;
bool userArraysOnBegin;
unsigned retain_count;
// Whether it has been bound before
bool bound;
// TODO: This will fail for buffers shared by multiple contexts.
std::map <GLuint, Buffer> buffers;
Context(void) :
profile(glprofile::API_GL, 1, 0),
user_arrays(false),
user_arrays_nv(false),
userArraysOnBegin(false),
retain_count(0),
bound(false)
{ }
inline bool
needsShadowBuffers(void)
{
return profile.es();
}
};
void
createContext(uintptr_t context_id);
void
retainContext(uintptr_t context_id);
bool
releaseContext(uintptr_t context_id);
void
setContext(uintptr_t context_id);
void
clearContext(void);
gltrace::Context *
getContext(void);
const GLubyte *
_glGetString_override(GLenum name);
void
_glGetIntegerv_override(GLenum pname, GLint *params);
const GLubyte *
_glGetStringi_override(GLenum name, GLuint index);
} /* namespace gltrace */
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