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dolphin/Source/Core/VideoCommon/Src/OpenCL/OCLTextureDecoder.cpp

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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/
#include "OCLTextureDecoder.h"
#include "OpenCL.h"
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <sys/types.h>
#include <sys/stat.h>
struct sDecoders
{
const char name[256]; // kernel name
cl_kernel kernel; // compute kernel
};
const char *Kernel = " \n\
kernel void DecodeI4(global uchar *dst, \n\
const global uchar *src, int width) \n\
{ \n\
int x = get_global_id(0) * 8, y = get_global_id(1) * 8; \n\
int srcOffset = x + y * width / 8; \n\
for (int iy = 0; iy < 8; iy++) \n\
{ \n\
uchar4 val = vload4(srcOffset, src); \n\
uchar8 res; \n\
res.even = (val >> 4) & 0x0F; \n\
res.odd = val & 0x0F; \n\
res |= res << 4; \n\
vstore8(res, 0, dst + ((y + iy)*width + x)); \n\
srcOffset++; \n\
} \n\
} \n\
\n\
kernel void DecodeI8(global uchar *dst, \n\
const global uchar *src, int width) \n\
{ \n\
int x = get_global_id(0) * 8, y = get_global_id(1) * 4; \n\
int srcOffset = ((x * 4) + (y * width)) / 8; \n\
for (int iy = 0; iy < 4; iy++) \n\
{ \n\
vstore8(vload8(srcOffset, src), \n\
0, dst + ((y + iy)*width + x)); \n\
srcOffset++; \n\
} \n\
} \n\
\n\
kernel void DecodeIA8(global uchar *dst, \n\
const global uchar *src, int width) \n\
{ \n\
int x = get_global_id(0) * 4, y = get_global_id(1) * 4; \n\
int srcOffset = ((x * 4) + (y * width)) / 4; \n\
for (int iy = 0; iy < 4; iy++) \n\
{ \n\
uchar8 val = vload8(srcOffset, src); \n\
uchar8 res; \n\
res.odd = val.even; \n\
res.even = val.odd; \n\
vstore8(res, 0, dst + ((y + iy)*width + x) * 2); \n\
srcOffset++; \n\
} \n\
} \n\
\n\
kernel void DecodeIA4(global uchar *dst, \n\
const global uchar *src, int width) \n\
{ \n\
int x = get_global_id(0) * 8, y = get_global_id(1) * 4; \n\
int srcOffset = ((x * 4) + (y * width)) / 8; \n\
for (int iy = 0; iy < 4; iy++) \n\
{ \n\
uchar8 val = vload8(srcOffset, src); \n\
uchar16 res; \n\
res.odd = (val >> 4) & 0x0F; \n\
res.even = val & 0x0F; \n\
res |= res << 4; \n\
vstore16(res, 0, dst + ((y + iy)*width + x) * 2); \n\
srcOffset++; \n\
} \n\
} \n\
\n\
kernel void DecodeDXT(global ulong *dst, \n\
const global ulong *src, int width) \n\
{ // TODO: PLEASE NOTE THAT THIS CODE DOES NOT WORK \n\
int x = get_global_id(0) * 8, y = get_global_id(1) * 8; \n\
int srcOffset = ((x * 4) + (y * width)) / 8; \n\
for (int iy = 0; iy < 4; iy++) \n\
{ \n\
vstore8(vload8(srcOffset, src), \n\
0, dst + ((y + iy)*width + x)); \n\
srcOffset++; \n\
} \n\
} \n\
";
cl_program g_program;
// NULL terminated set of kernels
sDecoders Decoders[] = {
{"DecodeI4", NULL},
{"DecodeI8", NULL},
{"DecodeIA4", NULL},
{"DecodeIA8", NULL},
{"DecodeDXT", NULL},
{"", NULL},
};
bool g_Inited = false;
extern PC_TexFormat TexDecoder_Decode_OpenCL(u8 *dst, const u8 *src, int width, int height, int texformat, int tlutaddr, int tlutfmt)
{
#if defined(HAVE_OPENCL) && HAVE_OPENCL
cl_int err;
cl_kernel kernelToRun = Decoders[0].kernel;
float sizeOfDst = sizeof(u8), sizeOfSrc = sizeof(u8), xSkip, ySkip;
PC_TexFormat formatResult;
cl_mem clsrc, cldst; // texture buffer memory objects
if(!g_Inited)
{
if(!OpenCL::Initialize())
return PC_TEX_FMT_NONE;
g_program = OpenCL::CompileProgram(Kernel);
int i = 0;
while(strlen(Decoders[i].name) > 0) {
Decoders[i].kernel = OpenCL::CompileKernel(g_program, Decoders[i].name);
i++;
}
g_Inited = true;
}
switch(texformat)
{
case GX_TF_I4:
kernelToRun = Decoders[0].kernel;
sizeOfSrc = sizeof(u8) / 2.0f;
sizeOfDst = sizeof(u8);
xSkip = 8;
ySkip = 8;
formatResult = PC_TEX_FMT_I4_AS_I8;
break;
case GX_TF_I8:
kernelToRun = Decoders[1].kernel;
sizeOfSrc = sizeOfDst = sizeof(u8);
xSkip = 8;
ySkip = 4;
formatResult = PC_TEX_FMT_I8;
break;
case GX_TF_IA4:
// Maybe a cleaner way is needed
kernelToRun = Decoders[2].kernel;
sizeOfSrc = sizeof(u8);
sizeOfDst = sizeof(u16);
xSkip = 8;
ySkip = 4;
formatResult = PC_TEX_FMT_IA4_AS_IA8;
break;
case GX_TF_IA8:
kernelToRun = Decoders[3].kernel;
sizeOfSrc = sizeOfDst = sizeof(u16);
xSkip = 4;
ySkip = 4;
formatResult = PC_TEX_FMT_IA8;
break;
case GX_TF_CMPR:
return PC_TEX_FMT_NONE; // <-- TODO: Fix CMPR
kernelToRun = Decoders[3].kernel;
sizeOfSrc = sizeOfDst = sizeof(u32);
xSkip = 8;
ySkip = 8;
formatResult = PC_TEX_FMT_BGRA32;
break;
default:
return PC_TEX_FMT_NONE;
}
// TODO: Optimize
clsrc = clCreateBuffer(OpenCL::GetContext(), CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR, (size_t)(width * height * sizeOfSrc), (void *)src, NULL);
cldst = clCreateBuffer(OpenCL::GetContext(), CL_MEM_WRITE_ONLY, width * height * sizeOfDst, NULL, NULL);
clSetKernelArg(kernelToRun, 0, sizeof(cl_mem), &cldst);
clSetKernelArg(kernelToRun, 1, sizeof(cl_mem), &clsrc);
clSetKernelArg(kernelToRun, 2, sizeof(cl_int), &width);
size_t global[] = { (size_t)(width / xSkip), (size_t)(height / ySkip) };
// No work-groups for now
/*
size_t local;
err = clGetKernelWorkGroupInfo(kernelToRun, OpenCL::device_id, CL_KERNEL_WORK_GROUP_SIZE, sizeof(local), &local, NULL);
if(err)
PanicAlert("Error obtaining work-group information");
*/
err = clEnqueueNDRangeKernel(OpenCL::GetCommandQueue(), kernelToRun, 2, NULL, global, NULL, 0, NULL, NULL);
if(err)
PanicAlert("Error queueing kernel");
clFinish(OpenCL::GetCommandQueue());
clEnqueueReadBuffer(OpenCL::GetCommandQueue(), cldst, CL_TRUE, 0, (size_t)(width * height * sizeOfDst), dst, 0, NULL, NULL);
clReleaseMemObject(clsrc);
clReleaseMemObject(cldst);
return formatResult;
#else
return PC_TEX_FMT_NONE;
#endif
/* switch (texformat)
{
case GX_TF_C4:
if (tlutfmt == 2)
{
// Special decoding is required for TLUT format 5A3
for (int y = 0; y < height; y += 8)
for (int x = 0; x < width; x += 8)
for (int iy = 0; iy < 8; iy++, src += 4)
decodebytesC4_5A3_To_BGRA32((u32*)dst + (y + iy) * width + x, src, tlutaddr);
}
else
{
for (int y = 0; y < height; y += 8)
for (int x = 0; x < width; x += 8)
for (int iy = 0; iy < 8; iy++, src += 4)
decodebytesC4_To_Raw16((u16*)dst + (y + iy) * width + x, src, tlutaddr);
}
return GetPCFormatFromTLUTFormat(tlutfmt);
case GX_TF_C8:
if (tlutfmt == 2)
{
// Special decoding is required for TLUT format 5A3
for (int y = 0; y < height; y += 4)
for (int x = 0; x < width; x += 8)
for (int iy = 0; iy < 4; iy++, src += 8)
decodebytesC8_5A3_To_BGRA32((u32*)dst + (y + iy) * width + x, src, tlutaddr);
}
else
{
for (int y = 0; y < height; y += 4)
for (int x = 0; x < width; x += 8)
for (int iy = 0; iy < 4; iy++, src += 8)
decodebytesC8_To_Raw16((u16*)dst + (y + iy) * width + x, src, tlutaddr);
}
return GetPCFormatFromTLUTFormat(tlutfmt);
case GX_TF_C14X2:
if (tlutfmt == 2)
{
// Special decoding is required for TLUT format 5A3
for (int y = 0; y < height; y += 4)
for (int x = 0; x < width; x += 4)
for (int iy = 0; iy < 4; iy++, src += 8)
decodebytesC14X2_5A3_To_BGRA32((u32*)dst + (y + iy) * width + x, (u16*)src, tlutaddr);
}
else
{
for (int y = 0; y < height; y += 4)
for (int x = 0; x < width; x += 4)
for (int iy = 0; iy < 4; iy++, src += 8)
decodebytesC14X2_To_Raw16((u16*)dst + (y + iy) * width + x, (u16*)src, tlutaddr);
}
return GetPCFormatFromTLUTFormat(tlutfmt);
case GX_TF_RGB565:
{
for (int y = 0; y < height; y += 4)
for (int x = 0; x < width; x += 4)
for (int iy = 0; iy < 4; iy++, src += 8)
{
u16 *ptr = (u16 *)dst + (y + iy) * width + x;
u16 *s = (u16 *)src;
for(int j = 0; j < 4; j++)
*ptr++ = Common::swap16(*s++);
}
}
return PC_TEX_FMT_RGB565;
case GX_TF_RGB5A3:
{
for (int y = 0; y < height; y += 4)
for (int x = 0; x < width; x += 4)
for (int iy = 0; iy < 4; iy++, src += 8)
//decodebytesRGB5A3((u32*)dst+(y+iy)*width+x, (u16*)src, 4);
decodebytesRGB5A3((u32*)dst+(y+iy)*width+x, (u16*)src);
}
return PC_TEX_FMT_BGRA32;
case GX_TF_RGBA8: // speed critical
{
for (int y = 0; y < height; y += 4)
for (int x = 0; x < width; x += 4)
{
for (int iy = 0; iy < 4; iy++)
decodebytesARGB8_4((u32*)dst + (y+iy)*width + x, (u16*)src + 4 * iy, (u16*)src + 4 * iy + 16);
src += 64;
}
}
return PC_TEX_FMT_BGRA32;
case GX_TF_CMPR: // speed critical
// The metroid games use this format almost exclusively.
{
for (int y = 0; y < height; y += 8)
{
for (int x = 0; x < width; x += 8)
{
decodeDXTBlock((u32*)dst + y * width + x, (DXTBlock*)src, width);
src += sizeof(DXTBlock);
decodeDXTBlock((u32*)dst + y * width + x + 4, (DXTBlock*)src, width);
src += sizeof(DXTBlock);
decodeDXTBlock((u32*)dst + (y + 4) * width + x, (DXTBlock*)src, width);
src += sizeof(DXTBlock);
decodeDXTBlock((u32*)dst + (y + 4) * width + x + 4, (DXTBlock*)src, width);
src += sizeof(DXTBlock);
}
}
return PC_TEX_FMT_BGRA32;
}
}
*/
// The "copy" texture formats, too?
return PC_TEX_FMT_NONE;
}
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