dolphin/Source/Plugins/Plugin_VideoOGL/Src/StreamBuffer.h

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// Copyright (C) 2003 Dolphin Project.
// 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, version 2.0.
// 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 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
#ifndef STREAMBUFFER_H
#define STREAMBUFFER_H
#include "VideoCommon.h"
#include "FramebufferManager.h"
#include "GLUtil.h"
// glew < 1.8 doesn't support pinned memory
#ifndef GLEW_AMD_pinned_memory
#define GLEW_AMD_pinned_memory glewIsSupported("GL_AMD_pinned_memory")
#define GL_EXTERNAL_VIRTUAL_MEMORY_BUFFER_AMD 0x9160
#endif
namespace OGL
{
enum StreamType {
DETECT_MASK = 0x1F,
STREAM_DETECT = (1 << 0),
MAP_AND_ORPHAN = (1 << 1),
MAP_AND_SYNC = (1 << 2),
MAP_AND_RISK = (1 << 3),
PINNED_MEMORY = (1 << 4),
BUFFERSUBDATA = (1 << 5)
};
class StreamBuffer {
public:
StreamBuffer(u32 type, size_t size, StreamType uploadType = DETECT_MASK);
~StreamBuffer();
void Alloc(size_t size, u32 stride = 0);
size_t Upload(u8 *data, size_t size);
u32 getBuffer() { return m_buffer; }
private:
void Init();
void Shutdown();
StreamType m_uploadtype;
u32 m_buffer;
u32 m_buffertype;
size_t m_size;
u8 *pointer;
size_t m_iterator;
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size_t m_used_iterator;
size_t m_free_iterator;
GLsync *fences;
};
}
#endif // STREAMBUFFER_H