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 "FileUtil.h"
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <string>
//#define DEBUG_OPENCL
cl_program g_program;
struct sDecoderParameter
{
const char *name;
cl_kernel kernel;
float sizeOfSrc;
float sizeOfDst;
int xSkip;
int ySkip;
PC_TexFormat format;
};
sDecoderParameter g_DecodeParametersNative[] = {
/* GX_TF_I4 */ { "DecodeI4", NULL, 0.5f, 1, 8, 8, PC_TEX_FMT_I4_AS_I8 },
/* GX_TF_I8 */ { "DecodeI8", NULL, 1, 1, 8, 4, PC_TEX_FMT_I8 },
/* GX_TF_IA4 */ { "DecodeIA4", NULL, 1, 2, 8, 4, PC_TEX_FMT_IA4_AS_IA8 },
/* GX_TF_IA8 */ { "DecodeIA8", NULL, 2, 2, 4, 4, PC_TEX_FMT_IA8 },
/* GX_TF_RGB565 */ { "DecodeRGB565", NULL, 2, 2, 4, 4, PC_TEX_FMT_RGB565 },
/* GX_TF_RGB5A3 */ { "DecodeRGB5A3", NULL, 2, 4, 4, 4, PC_TEX_FMT_BGRA32 },
/* GX_TF_RGBA8 */ { "DecodeRGBA8", NULL, 4, 4, 4, 4, PC_TEX_FMT_BGRA32 },
/* 7 */ { NULL },
/* GX_TF_C4 */ { NULL },
/* GX_TF_C8 */ { NULL },
/* GX_TF_C14X2 */ { NULL },
/* B */ { NULL },
/* C */ { NULL },
/* D */ { NULL },
/* GX_TF_CMPR */ { "DecodeCMPR", NULL, 0.5f, 4, 8, 8, PC_TEX_FMT_BGRA32 },
};
sDecoderParameter g_DecodeParametersRGBA[] = {
/* GX_TF_I4 */ { "DecodeI4_RGBA", NULL, 0.5f, 4, 8, 8, PC_TEX_FMT_RGBA32 },
/* GX_TF_I8 */ { "DecodeI8_RGBA", NULL, 1, 4, 8, 4, PC_TEX_FMT_RGBA32 },
/* GX_TF_IA4 */ { "DecodeIA4_RGBA", NULL, 1, 4, 8, 4, PC_TEX_FMT_RGBA32 },
/* GX_TF_IA8 */ { "DecodeIA8_RGBA", NULL, 2, 4, 4, 4, PC_TEX_FMT_RGBA32 },
/* GX_TF_RGB565 */ { "DecodeRGB565_RGBA", NULL, 2, 4, 4, 4, PC_TEX_FMT_RGBA32 },
/* GX_TF_RGB5A3 */ { "DecodeRGB5A3_RGBA", NULL, 2, 4, 4, 4, PC_TEX_FMT_RGBA32 },
/* GX_TF_RGBA8 */ { "DecodeRGBA8_RGBA", NULL, 4, 4, 4, 4, PC_TEX_FMT_RGBA32 },
/* 7 */ { NULL },
/* GX_TF_C4 */ { NULL },
/* GX_TF_C8 */ { NULL },
/* GX_TF_C14X2 */ { NULL },
/* B */ { NULL },
/* C */ { NULL },
/* D */ { NULL },
/* GX_TF_CMPR */ { "DecodeCMPR_RGBA", NULL, 0.5f, 4, 8, 8, PC_TEX_FMT_RGBA32 },
};
bool g_Inited = false;
cl_mem g_clsrc, g_cldst; // texture buffer memory objects
void TexDecoder_OpenCL_Initialize()
{
#if defined(HAVE_OPENCL) && HAVE_OPENCL
if(!g_Inited)
{
if(!OpenCL::Initialize())
return;
std::string code;
char filename[1024];
sprintf(filename, "%sOpenCL/TextureDecoder.cl", File::GetUserPath(D_USER_IDX));
if (!File::ReadFileToString(true, filename, code))
{
ERROR_LOG(VIDEO, "Failed to load OpenCL code %s - file is missing?", filename);
return;
}
g_program = OpenCL::CompileProgram(code.c_str());
for (int i = 0; i <= GX_TF_CMPR; ++i) {
if (g_DecodeParametersNative[i].name)
g_DecodeParametersNative[i].kernel =
OpenCL::CompileKernel(g_program,
g_DecodeParametersNative[i].name);
if (g_DecodeParametersRGBA[i].name)
g_DecodeParametersRGBA[i].kernel =
OpenCL::CompileKernel(g_program,
g_DecodeParametersRGBA[i].name);
}
// Allocating maximal Wii texture size in advance, so that we don't have to allocate/deallocate per texture
#ifndef DEBUG_OPENCL
g_clsrc = clCreateBuffer(OpenCL::GetContext(), CL_MEM_READ_ONLY , 1024 * 1024 * sizeof(u32), NULL, NULL);
g_cldst = clCreateBuffer(OpenCL::GetContext(), CL_MEM_WRITE_ONLY, 1024 * 1024 * sizeof(u32), NULL, NULL);
#endif
g_Inited = true;
}
#endif
}
void TexDecoder_OpenCL_Shutdown()
{
#if defined(HAVE_OPENCL) && HAVE_OPENCL && !defined(DEBUG_OPENCL)
clReleaseProgram(g_program);
for (int i = 0; i < GX_TF_CMPR; ++i) {
if (g_DecodeParametersNative[i].kernel)
clReleaseKernel(g_DecodeParametersNative[i].kernel);
if(g_DecodeParametersRGBA[i].kernel)
clReleaseKernel(g_DecodeParametersRGBA[i].kernel);
}
if(g_clsrc)
clReleaseMemObject(g_clsrc);
if(g_cldst)
clReleaseMemObject(g_cldst);
g_Inited = false;
#endif
}
PC_TexFormat TexDecoder_Decode_OpenCL(u8 *dst, const u8 *src, int width, int height, int texformat, int tlutaddr, int tlutfmt, bool rgba)
{
#if defined(HAVE_OPENCL) && HAVE_OPENCL
cl_int err;
sDecoderParameter& decoder = rgba ? g_DecodeParametersRGBA[texformat] : g_DecodeParametersNative[texformat];
if(!g_Inited || !decoder.name || !decoder.kernel || decoder.format == PC_TEX_FMT_NONE)
return PC_TEX_FMT_NONE;
#ifdef DEBUG_OPENCL
g_clsrc = clCreateBuffer(OpenCL::GetContext(), CL_MEM_READ_ONLY , 1024 * 1024 * sizeof(u32), NULL, NULL);
g_cldst = clCreateBuffer(OpenCL::GetContext(), CL_MEM_WRITE_ONLY, 1024 * 1024 * sizeof(u32), NULL, NULL);
#endif
clEnqueueWriteBuffer(OpenCL::GetCommandQueue(), g_clsrc, CL_TRUE, 0, (size_t)(width * height * decoder.sizeOfSrc), src, 0, NULL, NULL);
clSetKernelArg(decoder.kernel, 0, sizeof(cl_mem), &g_cldst);
clSetKernelArg(decoder.kernel, 1, sizeof(cl_mem), &g_clsrc);
clSetKernelArg(decoder.kernel, 2, sizeof(cl_int), &width);
size_t global[] = { (size_t)(width / decoder.xSkip), (size_t)(height / decoder.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(), decoder.kernel, 2, NULL, global, NULL, 0, NULL, NULL);
if(err)
OpenCL::HandleCLError(err, "Failed to enqueue kernel");
clFinish(OpenCL::GetCommandQueue());
clEnqueueReadBuffer(OpenCL::GetCommandQueue(), g_cldst, CL_TRUE, 0, (size_t)(width * height * decoder.sizeOfDst), dst, 0, NULL, NULL);
#ifdef DEBUG_OPENCL
clReleaseMemObject(g_clsrc);
clReleaseMemObject(g_cldst);
#endif
return decoder.format;
#else
return PC_TEX_FMT_NONE;
#endif
}