322 lines
12 KiB
C++
322 lines
12 KiB
C++
// Copyright (C) 2003 Dolphin Project.
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, version 2.0.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License 2.0 for more details.
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// A copy of the GPL 2.0 should have been included with the program.
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// If not, see http://www.gnu.org/licenses/
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// Official SVN repository and contact information can be found at
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// http://code.google.com/p/dolphin-emu/
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#include "OCLTextureDecoder.h"
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#include "OpenCL.h"
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <math.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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struct sDecoders
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{
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cl_program program; // compute program
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cl_kernel kernel; // compute kernel
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};
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const char *Kernel = " \n\
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kernel void DecodeI8(global uchar *dst, \n\
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const global uchar *src, int width) \n\
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{ \n\
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int x = get_global_id(0) * 8, y = get_global_id(1) * 4; \n\
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int srcOffset = ((x * 4) + (y * width)) / 8; \n\
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for (int iy = 0; iy < 4; iy++) \n\
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{ \n\
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vstore8(vload8(srcOffset, src), \n\
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0, dst + ((y + iy)*width + x)); \n\
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srcOffset++; \n\
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} \n\
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} \n\
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\n\
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kernel void DecodeIA8(global ushort *dst, \n\
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const global ushort *src, int width) \n\
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{ \n\
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int x = get_global_id(0) * 4, y = get_global_id(1) * 4; \n\
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int srcOffset = ((x * 4) + (y * width)) / 4; \n\
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for (int iy = 0; iy < 4; iy++) \n\
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{ \n\
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vstore4(vload4(srcOffset, src), \n\
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0, dst + ((y + iy)*width + x)); \n\
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srcOffset++; \n\
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} \n\
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} \n\
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\n\
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ushort swapbytes(ushort x) { \n\
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return (x & 0xf00f) | ((x >> 4) & 0x00f0) | \n\
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((x << 4) & 0x0f00); \n\
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} \n\
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\n\
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kernel void DecodeIA4(global ushort *dst, \n\
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const global uchar *src, int width) \n\
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{ \n\
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int x = get_global_id(0) * 8, y = get_global_id(1) * 4; \n\
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int srcOffset = ((x * 4) + (y * width)) / 8; \n\
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for (int iy = 0; iy < 4; iy++) \n\
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{ \n\
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uchar8 val = vload8(srcOffset, src); \n\
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ushort8 res = val.s0011223344556677; \n\
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res.s0 = swapbytes(res.s0); \n\
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res.s1 = swapbytes(res.s1); \n\
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res.s2 = swapbytes(res.s2); \n\
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res.s3 = swapbytes(res.s3); \n\
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res.s4 = swapbytes(res.s4); \n\
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res.s5 = swapbytes(res.s5); \n\
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res.s6 = swapbytes(res.s6); \n\
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res.s7 = swapbytes(res.s7); \n\
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vstore8(res, 0, dst + ((y + iy)*width + x)); \n\
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srcOffset++; \n\
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} \n\
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} \n\
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";
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sDecoders Decoders[] = { {NULL, NULL},
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{NULL, NULL},
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{NULL, NULL},
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};
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bool g_Inited = false;
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PC_TexFormat TexDecoder_Decode_OpenCL(u8 *dst, const u8 *src, int width, int height, int texformat, int tlutaddr, int tlutfmt)
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{
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#if defined(HAVE_OPENCL) && HAVE_OPENCL
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cl_int err;
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cl_kernel kernelToRun = Decoders[0].kernel;
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int sizeOfDst = sizeof(u8), sizeOfSrc = sizeof(u8), xSkip, ySkip;
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PC_TexFormat formatResult;
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cl_mem clsrc, cldst; // texture buffer memory objects
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if(!g_Inited)
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{
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if(!OpenCL::Initialize())
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return PC_TEX_FMT_NONE;
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Decoders[0].program = OpenCL::CompileProgram(Kernel);
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Decoders[0].kernel = OpenCL::CompileKernel(Decoders[0].program, "DecodeI8");
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Decoders[1].kernel = OpenCL::CompileKernel(Decoders[0].program, "DecodeIA4");
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Decoders[2].kernel = OpenCL::CompileKernel(Decoders[0].program, "DecodeIA8");
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g_Inited = true;
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}
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switch(texformat)
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{
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case GX_TF_IA4:
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// Maybe a cleaner way is needed
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kernelToRun = Decoders[1].kernel;
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sizeOfSrc = sizeof(u8);
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sizeOfDst = sizeof(u16);
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xSkip = 8;
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ySkip = 4;
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formatResult = PC_TEX_FMT_IA4_AS_IA8;
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break;
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case GX_TF_I8:
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kernelToRun = Decoders[0].kernel;
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sizeOfSrc = sizeOfDst = sizeof(u8);
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xSkip = 8;
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ySkip = 4;
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formatResult = PC_TEX_FMT_I8;
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break;
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case GX_TF_IA8:
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kernelToRun = Decoders[2].kernel;
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sizeOfSrc = sizeOfDst = sizeof(u16);
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xSkip = 4;
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ySkip = 4;
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formatResult = PC_TEX_FMT_IA8;
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break;
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default:
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return PC_TEX_FMT_NONE;
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}
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// TODO: Optimize
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clsrc = clCreateBuffer(OpenCL::GetContext(), CL_MEM_READ_ONLY | CL_MEM_COPY_HOST_PTR, width * height * sizeOfSrc, (void *)src, NULL);
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cldst = clCreateBuffer(OpenCL::GetContext(), CL_MEM_WRITE_ONLY, width * height * sizeOfDst, NULL, NULL);
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clSetKernelArg(kernelToRun, 0, sizeof(cl_mem), &cldst);
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clSetKernelArg(kernelToRun, 1, sizeof(cl_mem), &clsrc);
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clSetKernelArg(kernelToRun, 2, sizeof(cl_int), &width);
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size_t global[] = { width / xSkip, height / ySkip };
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// No work-groups for now
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/*
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size_t local;
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err = clGetKernelWorkGroupInfo(kernelToRun, OpenCL::device_id, CL_KERNEL_WORK_GROUP_SIZE, sizeof(local), &local, NULL);
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if(err)
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PanicAlert("Error obtaining work-group information");
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*/
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err = clEnqueueNDRangeKernel(OpenCL::GetCommandQueue(), kernelToRun, 2, NULL, global, NULL, 0, NULL, NULL);
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if(err)
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PanicAlert("Error queueing kernel");
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clFinish(OpenCL::GetCommandQueue());
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clEnqueueReadBuffer(OpenCL::GetCommandQueue(), cldst, CL_TRUE, 0, width * height * sizeOfDst, dst, 0, NULL, NULL);
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clReleaseMemObject(clsrc);
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clReleaseMemObject(cldst);
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return formatResult;
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#else
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return PC_TEX_FMT_NONE;
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#endif
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/* switch (texformat)
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{
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case GX_TF_C4:
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if (tlutfmt == 2)
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{
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// Special decoding is required for TLUT format 5A3
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for (int y = 0; y < height; y += 8)
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for (int x = 0; x < width; x += 8)
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for (int iy = 0; iy < 8; iy++, src += 4)
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decodebytesC4_5A3_To_BGRA32((u32*)dst + (y + iy) * width + x, src, tlutaddr);
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}
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else
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{
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for (int y = 0; y < height; y += 8)
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for (int x = 0; x < width; x += 8)
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for (int iy = 0; iy < 8; iy++, src += 4)
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decodebytesC4_To_Raw16((u16*)dst + (y + iy) * width + x, src, tlutaddr);
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}
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return GetPCFormatFromTLUTFormat(tlutfmt);
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case GX_TF_I4:
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{
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for (int y = 0; y < height; y += 8)
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for (int x = 0; x < width; x += 8)
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for (int iy = 0; iy < 8; iy++, src += 4)
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for (int ix = 0; ix < 4; ix++)
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{
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int val = src[ix];
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dst[(y + iy) * width + x + ix * 2] = Convert4To8(val >> 4);
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dst[(y + iy) * width + x + ix * 2 + 1] = Convert4To8(val & 0xF);
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}
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}
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return PC_TEX_FMT_I4_AS_I8;
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case GX_TF_C8:
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if (tlutfmt == 2)
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{
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// Special decoding is required for TLUT format 5A3
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for (int y = 0; y < height; y += 4)
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for (int x = 0; x < width; x += 8)
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for (int iy = 0; iy < 4; iy++, src += 8)
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decodebytesC8_5A3_To_BGRA32((u32*)dst + (y + iy) * width + x, src, tlutaddr);
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}
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else
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{
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for (int y = 0; y < height; y += 4)
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for (int x = 0; x < width; x += 8)
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for (int iy = 0; iy < 4; iy++, src += 8)
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decodebytesC8_To_Raw16((u16*)dst + (y + iy) * width + x, src, tlutaddr);
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}
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return GetPCFormatFromTLUTFormat(tlutfmt);
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case GX_TF_IA8:
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{
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for (int y = 0; y < height; y += 4)
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for (int x = 0; x < width; x += 4)
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for (int iy = 0; iy < 4; iy++, src += 8)
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{
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u16 *ptr = (u16 *)dst + (y + iy) * width + x;
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u16 *s = (u16 *)src;
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for(int j = 0; j < 4; j++)
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*ptr++ = Common::swap16(*s++);
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}
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}
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return PC_TEX_FMT_IA8;
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case GX_TF_C14X2:
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if (tlutfmt == 2)
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{
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// Special decoding is required for TLUT format 5A3
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for (int y = 0; y < height; y += 4)
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for (int x = 0; x < width; x += 4)
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for (int iy = 0; iy < 4; iy++, src += 8)
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decodebytesC14X2_5A3_To_BGRA32((u32*)dst + (y + iy) * width + x, (u16*)src, tlutaddr);
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}
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else
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{
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for (int y = 0; y < height; y += 4)
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for (int x = 0; x < width; x += 4)
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for (int iy = 0; iy < 4; iy++, src += 8)
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decodebytesC14X2_To_Raw16((u16*)dst + (y + iy) * width + x, (u16*)src, tlutaddr);
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}
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return GetPCFormatFromTLUTFormat(tlutfmt);
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case GX_TF_RGB565:
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{
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for (int y = 0; y < height; y += 4)
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for (int x = 0; x < width; x += 4)
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for (int iy = 0; iy < 4; iy++, src += 8)
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{
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u16 *ptr = (u16 *)dst + (y + iy) * width + x;
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u16 *s = (u16 *)src;
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for(int j = 0; j < 4; j++)
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*ptr++ = Common::swap16(*s++);
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}
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}
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return PC_TEX_FMT_RGB565;
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case GX_TF_RGB5A3:
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{
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for (int y = 0; y < height; y += 4)
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for (int x = 0; x < width; x += 4)
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for (int iy = 0; iy < 4; iy++, src += 8)
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//decodebytesRGB5A3((u32*)dst+(y+iy)*width+x, (u16*)src, 4);
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decodebytesRGB5A3((u32*)dst+(y+iy)*width+x, (u16*)src);
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}
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return PC_TEX_FMT_BGRA32;
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case GX_TF_RGBA8: // speed critical
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{
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for (int y = 0; y < height; y += 4)
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for (int x = 0; x < width; x += 4)
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{
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for (int iy = 0; iy < 4; iy++)
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decodebytesARGB8_4((u32*)dst + (y+iy)*width + x, (u16*)src + 4 * iy, (u16*)src + 4 * iy + 16);
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src += 64;
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}
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}
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return PC_TEX_FMT_BGRA32;
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case GX_TF_CMPR: // speed critical
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// The metroid games use this format almost exclusively.
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{
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for (int y = 0; y < height; y += 8)
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{
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for (int x = 0; x < width; x += 8)
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{
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decodeDXTBlock((u32*)dst + y * width + x, (DXTBlock*)src, width);
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src += sizeof(DXTBlock);
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decodeDXTBlock((u32*)dst + y * width + x + 4, (DXTBlock*)src, width);
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src += sizeof(DXTBlock);
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decodeDXTBlock((u32*)dst + (y + 4) * width + x, (DXTBlock*)src, width);
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src += sizeof(DXTBlock);
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decodeDXTBlock((u32*)dst + (y + 4) * width + x + 4, (DXTBlock*)src, width);
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src += sizeof(DXTBlock);
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}
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}
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return PC_TEX_FMT_BGRA32;
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}
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}
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*/
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// The "copy" texture formats, too?
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return PC_TEX_FMT_NONE;
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}
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