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

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// Copyright 2013 Dolphin Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
#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 <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, NULL, 0, 0, 0, 0, PC_TEX_FMT_NONE },
/* GX_TF_C4 */ { NULL, NULL, 0, 0, 0, 0, PC_TEX_FMT_NONE },
/* GX_TF_C8 */ { NULL, NULL, 0, 0, 0, 0, PC_TEX_FMT_NONE },
/* GX_TF_C14X2 */ { NULL, NULL, 0, 0, 0, 0, PC_TEX_FMT_NONE },
/* B */ { NULL, NULL, 0, 0, 0, 0, PC_TEX_FMT_NONE },
/* C */ { NULL, NULL, 0, 0, 0, 0, PC_TEX_FMT_NONE },
/* D */ { NULL, NULL, 0, 0, 0, 0, PC_TEX_FMT_NONE },
/* 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, NULL, 0, 0, 0, 0, PC_TEX_FMT_NONE },
/* GX_TF_C4 */ { NULL, NULL, 0, 0, 0, 0, PC_TEX_FMT_NONE },
/* GX_TF_C8 */ { NULL, NULL, 0, 0, 0, 0, PC_TEX_FMT_NONE },
/* GX_TF_C14X2 */ { NULL, NULL, 0, 0, 0, 0, PC_TEX_FMT_NONE },
/* B */ { NULL, NULL, 0, 0, 0, 0, PC_TEX_FMT_NONE },
/* C */ { NULL, NULL, 0, 0, 0, 0, PC_TEX_FMT_NONE },
/* D */ { NULL, NULL, 0, 0, 0, 0, PC_TEX_FMT_NONE },
/* 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
#define HEADER_SIZE 32
void TexDecoder_OpenCL_Initialize()
{
if(!g_Inited)
{
if(!OpenCL::Initialize())
return;
cl_int err = 1;
size_t binary_size = 0;
char *binary = NULL;
char *header = NULL;
size_t nDevices = 0;
cl_device_id *devices = NULL;
size_t *binary_sizes = NULL;
char **binaries = NULL;
std::string filename;
char dolphin_rev[HEADER_SIZE];
filename = File::GetUserPath(D_OPENCL_IDX) + "kernel.bin";
snprintf(dolphin_rev, HEADER_SIZE, "%-31s", scm_rev_str);
{
File::IOFile input(filename, "rb");
if (!input)
{
binary_size = 0;
}
else
{
binary_size = input.GetSize();
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header = new char[HEADER_SIZE];
binary = new char[binary_size];
input.ReadBytes(header, HEADER_SIZE);
input.ReadBytes(binary, binary_size);
}
}
if (binary_size > 0)
{
if (binary_size > HEADER_SIZE)
{
if (strncmp(header, dolphin_rev, HEADER_SIZE) == 0)
{
g_program = clCreateProgramWithBinary(OpenCL::GetContext(), 1, &OpenCL::device_id, &binary_size, (const unsigned char**)&binary, NULL, &err);
if (err != CL_SUCCESS)
{
OpenCL::HandleCLError(err, "clCreateProgramWithBinary");
}
if (!err)
{
err = clBuildProgram(g_program, 1, &OpenCL::device_id, NULL, NULL, NULL);
if (err != CL_SUCCESS)
{
OpenCL::HandleCLError(err, "clBuildProgram");
}
}
}
}
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delete [] header;
delete [] binary;
}
// If an error occurred using the kernel binary, recompile the kernels
if (err)
{
std::string code;
filename = File::GetUserPath(D_OPENCL_IDX) + "TextureDecoder.cl";
if (!File::ReadFileToString(true, filename.c_str(), code))
{
ERROR_LOG(VIDEO, "Failed to load OpenCL code %s - file is missing?", filename.c_str());
return;
}
g_program = OpenCL::CompileProgram(code.c_str());
err = clGetProgramInfo(g_program, CL_PROGRAM_NUM_DEVICES, sizeof(nDevices), &nDevices, NULL);
if (err != CL_SUCCESS)
{
OpenCL::HandleCLError(err, "clGetProgramInfo");
}
devices = (cl_device_id *)malloc( sizeof(cl_device_id) *nDevices);
err = clGetProgramInfo(g_program, CL_PROGRAM_DEVICES, sizeof(cl_device_id)*nDevices, devices, NULL);
if (err != CL_SUCCESS)
{
OpenCL::HandleCLError(err, "clGetProgramInfo");
}
binary_sizes = (size_t *)malloc(sizeof(size_t)*nDevices);
err = clGetProgramInfo(g_program, CL_PROGRAM_BINARY_SIZES, sizeof(size_t)*nDevices, binary_sizes, NULL);
if (err != CL_SUCCESS)
{
OpenCL::HandleCLError(err, "clGetProgramInfo");
}
binaries = (char **)malloc(sizeof(char *)*nDevices);
for (u32 i = 0; i < nDevices; ++i)
{
if (binary_sizes[i] != 0)
{
binaries[i] = (char *)malloc(HEADER_SIZE + binary_sizes[i]);
}
else
{
binaries[i] = NULL;
}
}
err = clGetProgramInfo( g_program, CL_PROGRAM_BINARIES, sizeof(char *)*nDevices, binaries, NULL );
if (err != CL_SUCCESS)
{
OpenCL::HandleCLError(err, "clGetProgramInfo");
}
if (!err)
{
filename = File::GetUserPath(D_OPENCL_IDX) + "kernel.bin";
File::IOFile output(filename, "wb");
if (!output)
{
binary_size = 0;
}
else
{
// Supporting one OpenCL device for now
output.WriteBytes(dolphin_rev, HEADER_SIZE);
output.WriteBytes(binaries[0], binary_sizes[0]);
}
}
for (u32 i = 0; i < nDevices; ++i)
{
if (binary_sizes[i] != 0)
{
free(binaries[i]);
}
}
if (binaries != NULL)
free(binaries);
if (binary_sizes != NULL)
free(binary_sizes);
if (devices != NULL)
free(devices);
}
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;
}
}
void TexDecoder_OpenCL_Shutdown()
{
if (g_program)
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;
}
PC_TexFormat TexDecoder_Decode_OpenCL(u8 *dst, const u8 *src, int width, int height, int texformat, int tlutaddr, int tlutfmt, bool rgba)
{
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;
}