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/*
* Copyright (C) 2007-2009 Gabest
* http://www.gabest.org
*
* 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, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA USA.
* http://www.gnu.org/copyleft/gpl.html
*
*/
#include "stdafx.h"
#include "GSDump.h"
GSDumpBase::GSDumpBase(const std::string& fn)
: m_frames(0)
, m_extra_frames(2)
{
m_gs = px_fopen(fn, "wb");
if (!m_gs)
fprintf(stderr, "GSDump: Error failed to open %s\n", fn.c_str());
}
GSDumpBase::~GSDumpBase()
{
if(m_gs)
fclose(m_gs);
}
void GSDumpBase::AddHeader(uint32 crc, const GSFreezeData& fd, const GSPrivRegSet* regs)
{
AppendRawData(&crc, 4);
AppendRawData(&fd.size, 4);
AppendRawData(fd.data, fd.size);
AppendRawData(regs, sizeof(*regs));
}
void GSDumpBase::Transfer(int index, const uint8* mem, size_t size)
{
if (size == 0)
return;
AppendRawData(0);
AppendRawData(static_cast<uint8>(index));
AppendRawData(&size, 4);
AppendRawData(mem, size);
}
void GSDumpBase::ReadFIFO(uint32 size)
{
if (size == 0)
return;
AppendRawData(2);
AppendRawData(&size, 4);
}
bool GSDumpBase::VSync(int field, bool last, const GSPrivRegSet* regs)
{
// dump file is bad, return done to delete the object
if (!m_gs)
return true;
AppendRawData(3);
AppendRawData(regs, sizeof(*regs));
AppendRawData(1);
AppendRawData(static_cast<uint8>(field));
if (last)
m_extra_frames--;
return (++m_frames & 1) == 0 && last && (m_extra_frames < 0);
}
void GSDumpBase::Write(const void *data, size_t size)
{
if (!m_gs || size == 0)
return;
size_t written = fwrite(data, 1, size, m_gs);
if (written != size)
fprintf(stderr, "GSDump: Error failed to write data\n");
}
//////////////////////////////////////////////////////////////////////
// GSDump implementation
//////////////////////////////////////////////////////////////////////
GSDump::GSDump(const std::string& fn, uint32 crc, const GSFreezeData& fd, const GSPrivRegSet* regs)
: GSDumpBase(fn + ".gs")
{
AddHeader(crc, fd, regs);
}
void GSDump::AppendRawData(const void *data, size_t size)
{
Write(data, size);
}
void GSDump::AppendRawData(uint8 c)
{
Write(&c, 1);
}
//////////////////////////////////////////////////////////////////////
// GSDumpXz implementation
//////////////////////////////////////////////////////////////////////
GSDumpXz::GSDumpXz(const std::string& fn, uint32 crc, const GSFreezeData& fd, const GSPrivRegSet* regs)
: GSDumpBase(fn + ".gs.xz")
{
m_strm = LZMA_STREAM_INIT;
lzma_ret ret = lzma_easy_encoder(&m_strm, 6 /*level*/, LZMA_CHECK_CRC64);
if (ret != LZMA_OK) {
fprintf(stderr, "GSDumpXz: Error initializing LZMA encoder ! (error code %u)\n", ret);
return;
}
AddHeader(crc, fd, regs);
}
GSDumpXz::~GSDumpXz()
{
Flush();
// Finish the stream
m_strm.avail_in = 0;
Compress(LZMA_FINISH, LZMA_STREAM_END);
lzma_end(&m_strm);
}
void GSDumpXz::AppendRawData(const void *data, size_t size)
{
size_t old_size = m_in_buff.size();
m_in_buff.resize(old_size + size);
memcpy(&m_in_buff[old_size], data, size);
// Enough data was accumulated, time to write/compress it. If compression
// is enabled, it will freeze PCSX2. 1GB should be enough for long dump.
//
// Note: long dumps are currently not supported so this path won't be executed
if (m_in_buff.size() > 1024*1024*1024)
Flush();
}
void GSDumpXz::AppendRawData(uint8 c)
{
m_in_buff.push_back(c);
}
void GSDumpXz::Flush()
{
if (m_in_buff.empty())
return;
m_strm.next_in = m_in_buff.data();
m_strm.avail_in = m_in_buff.size();
Compress(LZMA_RUN, LZMA_OK);
m_in_buff.clear();
}
void GSDumpXz::Compress(lzma_action action, lzma_ret expected_status)
{
std::vector<uint8> out_buff(1024*1024);
do {
m_strm.next_out = out_buff.data();
m_strm.avail_out = out_buff.size();
lzma_ret ret = lzma_code(&m_strm, action);
if (ret != expected_status) {
fprintf (stderr, "GSDumpXz: Error %d\n", (int) ret);
return;
}
size_t write_size = out_buff.size() - m_strm.avail_out;
Write(out_buff.data(), write_size);
} while (m_strm.avail_out == 0);
}
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