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/* SCE CONFIDENTIAL
PlayStation(R)3 Programmer Tool Runtime Library 430.001
* Copyright (C) 2007 Sony Computer Entertainment Inc.
* All Rights Reserved.
*/
/* common headers */
#include <stdint.h>
#include <stdlib.h>
#include <alloca.h>
#include <spu_intrinsics.h>
#include <cell/spurs.h>
#include <spu_printf.h>
#include <cell/dma.h>
#include <cell/spurs/job_queue.h>
#include "..\Common\DmaData.h"
#include <vectormath/c/vectormath_aos_v.h>
static const bool sc_verbose = false;
CellSpursJobContext2* g_pSpursJobContext;
class PPULoadArray
{
static const int sc_cacheSize = 16384;
unsigned char m_localCache[sc_cacheSize];
unsigned char* m_pDataPPU;
int m_cachePos;
int m_cacheFilled;
int m_ppuPos;
int m_dataSize;
public:
PPULoadArray(uintptr_t pDataPPU, int dataSize)
{
m_pDataPPU = (unsigned char*)pDataPPU;
m_cachePos = 0;
m_ppuPos = 0;
m_dataSize = dataSize;
fillCache();
}
unsigned char getCurrent()
{
unsigned char val = m_localCache[m_cachePos];
return val;
}
unsigned char getNext()
{
m_cachePos++;
if(m_cachePos >= sc_cacheSize)
loadMore();
unsigned char val = m_localCache[m_cachePos];
return val;
}
int getPos() { return m_ppuPos + m_cachePos; }
void loadMore()
{
m_ppuPos += sc_cacheSize;
fillCache();
}
void fillCache()
{
// dma data from PPU
// spu_printf("DMAing %d bytes from 0x%08x(SPU) to 0x%08x(PPU)\n",(int)( m_cachePos*sizeof(int)), (int)m_localCache, (int)&m_pDataPPU[m_ppuPos]);
int dmaSize = (m_dataSize - m_ppuPos);
if(dmaSize > sc_cacheSize)
dmaSize = sc_cacheSize;
dmaSize = DmaData_SPU::roundUpDMASize(dmaSize);
DmaData_SPU::getAndWait(m_localCache, (uintptr_t)&m_pDataPPU[m_ppuPos], dmaSize);
m_cachePos = 0;
}
};
class PPUStoreArray
{
static const int sc_cacheSize = 16384;
unsigned char m_localCache[sc_cacheSize];
unsigned char* m_pDataPPU;
int m_cachePos;
int m_ppuPos;
public:
PPUStoreArray(uintptr_t pDataPPU) { m_pDataPPU = (unsigned char*)pDataPPU; m_cachePos = 0; m_ppuPos = 0;}
void store(unsigned char val)
{
m_localCache[m_cachePos] = val;
m_cachePos++;
if(m_cachePos >= sc_cacheSize)
flush();
}
void flush()
{
if(m_cachePos > 0)
{
// dma the local cache back to PPU and start again
// spu_printf("DMAing %d bytes from 0x%08x(SPU) to 0x%08x(PPU)\n",(int)( m_cachePos*sizeof(int)), (int)m_localCache, (int)&m_pDataPPU[m_ppuPos]);
DmaData_SPU::putAndWait(m_localCache, (uintptr_t)&m_pDataPPU[m_ppuPos], DmaData_SPU::roundUpDMASize(m_cachePos));
// if(m_ppuPos == 0)
// spu_printf("first 4 - %d %d %d %d\n", m_localCache[0], m_localCache[1], m_localCache[2], m_localCache[3]);
m_ppuPos += m_cachePos;
m_cachePos = 0;
}
}
int getSize() { return m_ppuPos; }
};
void RLECompress(void *pPPUSrc, int srcSize, void* pPPUDst, int* pDstSize)
{
PPULoadArray srcBuffer((uintptr_t)pPPUSrc, srcSize);
// PPUStoreArray dstBuffer((uintptr_t)pPPUDst);
unsigned char dstBuffer[1024*100];
int dstPos = 0;
int endPos = srcSize-1;
// Compress with RLE first:
// 0 - 254 - encodes a single byte
// 255 followed by 0, 1, 2 - encodes a 1, 2, or 3 255s
// 255 followed by 3-255, followed by a byte - encodes a run of n + 1 bytes
do
{
unsigned char thisOne = srcBuffer.getCurrent();
unsigned int count = 1;
while( ( srcBuffer.getPos() != endPos ) && ( srcBuffer.getNext() == thisOne ) && ( count < 256 ) )
{
count++;
}
if( count <= 3 )
{
if( thisOne == 255 )
{
dstBuffer[dstPos++] = 255;
dstBuffer[dstPos++] = count - 1;
}
else
{
for( unsigned int i = 0; i < count ; i++ )
{
dstBuffer[dstPos++] = thisOne;
}
}
}
else
{
dstBuffer[dstPos++] = 255;
dstBuffer[dstPos++] = count - 1;
dstBuffer[dstPos++] = thisOne;
}
} while (srcBuffer.getPos() != endPos);
DmaData_SPU::wait();
DmaData_SPU::putValue32(dstPos, (uintptr_t)pDstSize);
int dstDmaSize = DmaData_SPU::roundUpDMASize(dstPos);
DmaData_SPU::putAndWait(dstBuffer, (uintptr_t)pPPUDst, dstDmaSize);
}
void cellSpursJobQueueMain(CellSpursJobContext2 *pContext, CellSpursJob256 *pJob)
{
// CellSpursTaskId idTask = cellSpursGetTaskId();
unsigned int idSpu = cellSpursGetCurrentSpuId();
if(sc_verbose)
spu_printf("PerlinNoiseJob [SPU#%u] start\n", idSpu);
g_pSpursJobContext = pContext;
void* pPPUSrc = (void*)pJob->workArea.userData[0];
int srcSize = (int)pJob->workArea.userData[1];
void* pPPUDst = (void*)pJob->workArea.userData[2];
int* pDstSize = (int*)pJob->workArea.userData[3];
//
// spu_printf("pPPUSrc : 0x%08x\n", pPPUSrc);
// spu_printf("srcSize : %d\n", srcSize);
// spu_printf("pPPUDst : 0x%08x\n", pPPUDst);
// spu_printf("pDstSize : 0x%08x\n", pDstSize);
RLECompress(pPPUSrc, srcSize, pPPUDst, pDstSize);
if(sc_verbose)
spu_printf("PerlinNoiseJob [SPU#%u] exit\n", idSpu);
}
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