mirror of https://github.com/PCSX2/pcsx2.git
72 lines
1.7 KiB
C
72 lines
1.7 KiB
C
|
/*
|
||
|
|
* Copyright (C) 2011-2011 Gregory hainaut
|
||
|
|
* Copyright (C) 2007-2009 Gabest
|
||
|
|
*
|
||
|
|
* This Program is free software; you can redistribute it and/or modify
|
||
|
|
* it under the terms of the GNU General Public License as published by
|
||
|
|
* the Free Software Foundation; either version 2, or (at your option)
|
||
|
|
* any later version.
|
||
|
|
*
|
||
|
|
* This Program is distributed in the hope that it will be useful,
|
||
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
* GNU General Public License for more details.
|
||
|
|
*
|
||
|
|
* You should have received a copy of the GNU General Public License
|
||
|
|
* along with GNU Make; see the file COPYING. If not, write to
|
||
|
|
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
|
||
|
|
* http://www.gnu.org/copyleft/gpl.html
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
// Note: it is same code that was developed for GSdx plugin
|
||
|
|
|
||
|
|
#pragma once
|
||
|
|
|
||
|
|
#ifdef GLSL4_API
|
||
|
|
class GSUniformBufferOGL {
|
||
|
|
GLuint buffer; // data object
|
||
|
|
GLuint index; // GLSL slot
|
||
|
|
uint size; // size of the data
|
||
|
|
const GLenum target;
|
||
|
|
|
||
|
|
public:
|
||
|
|
GSUniformBufferOGL(GLuint index, uint size) : index(index)
|
||
|
|
, size(size)
|
||
|
|
,target(GL_UNIFORM_BUFFER)
|
||
|
|
{
|
||
|
|
glGenBuffers(1, &buffer);
|
||
|
|
bind();
|
||
|
|
allocate();
|
||
|
|
attach();
|
||
|
|
}
|
||
|
|
|
||
|
|
void bind()
|
||
|
|
{
|
||
|
|
glBindBuffer(target, buffer);
|
||
|
|
}
|
||
|
|
|
||
|
|
void allocate()
|
||
|
|
{
|
||
|
|
glBufferData(target, size, NULL, GL_STREAM_DRAW);
|
||
|
|
}
|
||
|
|
|
||
|
|
void attach()
|
||
|
|
{
|
||
|
|
glBindBufferBase(target, index, buffer);
|
||
|
|
}
|
||
|
|
|
||
|
|
void upload(const void* src)
|
||
|
|
{
|
||
|
|
uint32 flags = GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT;
|
||
|
|
uint8* dst = (uint8*) glMapBufferRange(target, 0, size, flags);
|
||
|
|
memcpy(dst, src, size);
|
||
|
|
glUnmapBuffer(target);
|
||
|
|
}
|
||
|
|
|
||
|
|
~GSUniformBufferOGL() {
|
||
|
|
glDeleteBuffers(1, &buffer);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
#endif
|