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OpenCL: Implemented I4 and corrected IA8 (huge thanks to Orphis for f…
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…ixes, implementation and optimization)

git-svn-id: https://dolphin-emu.googlecode.com/svn/trunk@4417 8ced0084-cf51-0410-be5f-012b33b47a6e
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@tbennun
tbennun committed Oct 13, 2009
1 parent 9fc1fc0 commit fb60b10
Showing 1 changed file with 60 additions and 68 deletions.
128 changes: 60 additions & 68 deletions Source/Core/VideoCommon/Src/OpenCL/OCLTextureDecoder.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,23 @@ struct sDecoders
};

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\
Expand All @@ -47,42 +64,35 @@ kernel void DecodeI8(global uchar *dst, \n\
} \n\
} \n\
\n\
kernel void DecodeIA8(global ushort *dst, \n\
const global ushort *src, int width) \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\
vstore4(vload4(srcOffset, src), \n\
0, dst + ((y + iy)*width + x)); \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\
ushort swapbytes(ushort x) { \n\
return (x & 0xf00f) | ((x >> 4) & 0x00f0) | \n\
((x << 4) & 0x0f00); \n\
} \n\
\n\
kernel void DecodeIA4(global ushort *dst, \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\
ushort8 res = val.s0011223344556677; \n\
res.s0 = swapbytes(res.s0); \n\
res.s1 = swapbytes(res.s1); \n\
res.s2 = swapbytes(res.s2); \n\
res.s3 = swapbytes(res.s3); \n\
res.s4 = swapbytes(res.s4); \n\
res.s5 = swapbytes(res.s5); \n\
res.s6 = swapbytes(res.s6); \n\
res.s7 = swapbytes(res.s7); \n\
vstore8(res, 0, dst + ((y + iy)*width + x)); \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\
Expand All @@ -103,21 +113,23 @@ kernel void DecodeDXT(global ulong *dst, \n\

cl_program g_program;
// NULL terminated set of kernels
sDecoders Decoders[] = { {"DecodeI8", NULL},
{"DecodeIA4", NULL},
{"DecodeIA8", NULL},
{"DecodeDXT", NULL},
{"", NULL},
sDecoders Decoders[] = {
{"DecodeI4", NULL},
{"DecodeI8", NULL},
{"DecodeIA4", NULL},
{"DecodeIA8", NULL},
{"DecodeDXT", NULL},
{"", NULL},
};

bool g_Inited = false;

PC_TexFormat TexDecoder_Decode_OpenCL(u8 *dst, const u8 *src, int width, int height, int texformat, int tlutaddr, int tlutfmt)
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;
int sizeOfDst = sizeof(u8), sizeOfSrc = sizeof(u8), xSkip, ySkip;
float sizeOfDst = sizeof(u8), sizeOfSrc = sizeof(u8), xSkip, ySkip;
PC_TexFormat formatResult;
cl_mem clsrc, cldst; // texture buffer memory objects
if(!g_Inited)
Expand All @@ -138,25 +150,32 @@ PC_TexFormat TexDecoder_Decode_OpenCL(u8 *dst, const u8 *src, int width, int hei
}
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[1].kernel;
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_I8:
kernelToRun = Decoders[0].kernel;
sizeOfSrc = sizeOfDst = sizeof(u8);
xSkip = 8;
ySkip = 4;
formatResult = PC_TEX_FMT_I8;
break;
case GX_TF_IA8:
//return PC_TEX_FMT_NONE; // <-- TODO: Fix IA8
kernelToRun = Decoders[2].kernel;
kernelToRun = Decoders[3].kernel;
sizeOfSrc = sizeOfDst = sizeof(u16);
xSkip = 4;
ySkip = 4;
Expand All @@ -169,19 +188,20 @@ PC_TexFormat TexDecoder_Decode_OpenCL(u8 *dst, const u8 *src, int width, int hei
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, width * height * sizeOfSrc, (void *)src, NULL);
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[] = { width / xSkip, height / ySkip };
size_t global[] = { (size_t)(width / xSkip), (size_t)(height / ySkip) };

// No work-groups for now
/*
Expand All @@ -197,7 +217,7 @@ PC_TexFormat TexDecoder_Decode_OpenCL(u8 *dst, const u8 *src, int width, int hei

clFinish(OpenCL::GetCommandQueue());

clEnqueueReadBuffer(OpenCL::GetCommandQueue(), cldst, CL_TRUE, 0, width * height * sizeOfDst, dst, 0, NULL, NULL);
clEnqueueReadBuffer(OpenCL::GetCommandQueue(), cldst, CL_TRUE, 0, (size_t)(width * height * sizeOfDst), dst, 0, NULL, NULL);

clReleaseMemObject(clsrc);
clReleaseMemObject(cldst);
Expand Down Expand Up @@ -226,20 +246,6 @@ PC_TexFormat TexDecoder_Decode_OpenCL(u8 *dst, const u8 *src, int width, int hei
decodebytesC4_To_Raw16((u16*)dst + (y + iy) * width + x, src, tlutaddr);
}
return GetPCFormatFromTLUTFormat(tlutfmt);
case GX_TF_I4:
{
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)
for (int ix = 0; ix < 4; ix++)
{
int val = src[ix];
dst[(y + iy) * width + x + ix * 2] = Convert4To8(val >> 4);
dst[(y + iy) * width + x + ix * 2 + 1] = Convert4To8(val & 0xF);
}
}
return PC_TEX_FMT_I4_AS_I8;
case GX_TF_C8:
if (tlutfmt == 2)
{
Expand All @@ -257,20 +263,6 @@ PC_TexFormat TexDecoder_Decode_OpenCL(u8 *dst, const u8 *src, int width, int hei
decodebytesC8_To_Raw16((u16*)dst + (y + iy) * width + x, src, tlutaddr);
}
return GetPCFormatFromTLUTFormat(tlutfmt);
case GX_TF_IA8:
{
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_IA8;
case GX_TF_C14X2:
if (tlutfmt == 2)
{
Expand Down

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