195 lines
7.1 KiB
Common Lisp
195 lines
7.1 KiB
Common Lisp
// 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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kernel void DecodeI4(global uchar *dst,
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const global uchar *src, int width)
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{
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int x = get_global_id(0) * 8, y = get_global_id(1) * 8;
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int srcOffset = x + y * width / 8;
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for (int iy = 0; iy < 8; iy++)
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{
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uchar4 val = vload4(srcOffset, src);
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uchar8 res;
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res.even = (val >> (uchar4)4) & (uchar4)0x0F;
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res.odd = val & (uchar4)0x0F;
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res |= res << (uchar8)4;
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vstore8(res, 0, dst + ((y + iy)*width + x));
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srcOffset++;
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}
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}
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kernel void DecodeI8(global uchar *dst,
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const global uchar *src, int width)
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{
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int x = get_global_id(0) * 8, y = get_global_id(1) * 4;
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int srcOffset = ((x * 4) + (y * width)) / 8;
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for (int iy = 0; iy < 4; iy++)
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{
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vstore8(vload8(srcOffset, src),
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0, dst + ((y + iy)*width + x));
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srcOffset++;
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}
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}
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kernel void DecodeIA8(global uchar *dst,
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const global uchar *src, int width)
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{
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int x = get_global_id(0) * 4, y = get_global_id(1) * 4;
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int srcOffset = ((x * 4) + (y * width)) / 4;
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for (int iy = 0; iy < 4; iy++)
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{
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uchar8 val = vload8(srcOffset++, src);
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uchar8 res;
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res.odd = val.even;
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res.even = val.odd;
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vstore8(res, 0, dst + ((y + iy)*width + x) * 2);
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}
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}
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kernel void DecodeIA4(global uchar *dst,
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const global uchar *src, int width)
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{
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int x = get_global_id(0) * 8, y = get_global_id(1) * 4;
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int srcOffset = ((x * 4) + (y * width)) / 8;
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uchar8 val;
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uchar16 res;
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dst += 2*(y*width + x);
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#define iterateIA4() \
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val = vload8(srcOffset++, src); \
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res.odd = (val >> (uchar8)4); \
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res.even = val & (uchar8)0x0F; \
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res |= res << (uchar16)4; \
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vstore16(res, 0, dst);
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iterateIA4(); dst += 2*width;
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iterateIA4(); dst += 2*width;
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iterateIA4(); dst += 2*width;
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iterateIA4();
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}
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kernel void DecodeRGBA8(global uchar *dst,
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const global uchar *src, int width)
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{
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int x = get_global_id(0) * 4, y = get_global_id(1) * 4;
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int srcOffset = (x * 2) + (y * width) / 2;
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for (int iy = 0; iy < 4; iy++)
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{
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uchar8 ar = vload8(srcOffset, src);
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uchar8 gb = vload8(srcOffset + 4, src);
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uchar16 res;
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res.even.even = gb.odd;
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res.even.odd = ar.odd;
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res.odd.even = gb.even;
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res.odd.odd = ar.even;
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vstore16(res, 0, dst + ((y + iy)*width + x) * 4);
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srcOffset++;
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}
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}
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kernel void DecodeRGB565(global ushort *dst,
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const global uchar *src, int width)
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{
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int x = get_global_id(0) * 4, y = get_global_id(1) * 4;
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int srcOffset = x + (y * width) / 4;
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for (int iy = 0; iy < 4; iy++)
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{
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uchar8 val = vload8(srcOffset++, src);
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vstore4(upsample(val.even, val.odd), 0, dst + ((y + iy)*width + x));
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}
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}
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kernel void DecodeRGB5A3(global uchar *dst,
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const global uchar *src, int width)
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{
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int x = get_global_id(0) * 4, y = get_global_id(1) * 4;
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int srcOffset = x + (y * width) / 4;
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uchar8 val;
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uchar16 resNoAlpha, resAlpha, res, choice;
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#define iterateRGB5A3() \
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val = vload8(srcOffset++, src); \
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resNoAlpha.s26AE = val.even << (uchar4)1; \
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resNoAlpha.s159D = val.even << (uchar4)6 | val.odd >> (uchar4)2; \
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resNoAlpha.s048C = val.odd << (uchar4)3; \
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resNoAlpha = bitselect(resNoAlpha, resNoAlpha >> (uchar16)5, (uchar16)0x3); \
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resNoAlpha.s37BF = (uchar4)(0xFF); \
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resAlpha.s26AE = bitselect(val.even << (uchar4)4, val.even, (uchar4)0xF); \
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resAlpha.s159D = bitselect(val.odd, val.odd >> (uchar4)4, (uchar4)0xF); \
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resAlpha.s048C = bitselect(val.odd << (uchar4)4, val.odd, (uchar4)0xF); \
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resAlpha.s37BF = bitselect(val.even << (uchar4)1, val.even >> (uchar4)2, (uchar4)0x1C); \
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resAlpha.s37BF = bitselect(resAlpha.s37BF, val.even >> (uchar4)5, (uchar4)0x3); \
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choice = (uchar16)((uchar4)(val.even.s0), \
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(uchar4)(val.even.s1), \
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(uchar4)(val.even.s2), \
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(uchar4)(val.even.s3)); \
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vstore16(select(resAlpha, resNoAlpha, choice), 0, dst + (y * width + x) * 4);
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iterateRGB5A3(); dst += width*4;
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iterateRGB5A3(); dst += width*4;
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iterateRGB5A3(); dst += width*4;
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iterateRGB5A3();
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}
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uint16 unpack(uchar b)
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{
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return (uint16)((uint4)(b >> 3 & 0x18),
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(uint4)(b >> 1 & 0x18),
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(uint4)(b << 1 & 0x18),
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(uint4)(b << 3 & 0x18));
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}
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kernel void decodeCMPRBlock(global uchar *dst,
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const global uchar *src, int width)
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{
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int x = get_global_id(0) * 4, y = get_global_id(1) * 4;
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uchar8 val = vload8(0, src);
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uchar2 colora565 = (uchar2)(val.s1, val.s3);
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uchar2 colorb565 = (uchar2)(val.s0, val.s2);
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uchar8 color32 = (uchar8)(bitselect(colora565 << (uchar2)3, colora565 >> (uchar2)2, (uchar2)7),
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bitselect((colora565 >> (uchar2)3) | (colorb565 << (uchar2)5), colorb565 >> (uchar2)1, (uchar2)3),
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bitselect(colorb565, colorb565 >> (uchar2)5, (uchar2)7),
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(uchar2)0xFF);
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ushort4 frac2 = convert_ushort4(color32.even & (uchar4)0xFF) - convert_ushort4(color32.odd & (uchar4)0xFF);
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uchar4 frac = convert_uchar4((frac2 * (ushort4)3) / (ushort4)8);
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ushort4 colorAlpha = upsample((uchar4)0, rhadd(color32.odd, color32.even));
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colorAlpha.s3 = 0xFF;
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ushort4 colorNoAlpha = upsample(color32.odd + frac, color32.even - frac);
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uint4 colors = upsample((upsample(val.s0,val.s1) > upsample(val.s2,val.s3))?colorNoAlpha:colorAlpha,
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upsample(color32.odd, color32.even));
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uint16 colorsFull = (uint16)(colors, colors, colors, colors);
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vstore16(convert_uchar16(colorsFull >> unpack(val.s4)), 0, dst);
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vstore16(convert_uchar16(colorsFull >> unpack(val.s5)), 0, dst+=width*4);
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vstore16(convert_uchar16(colorsFull >> unpack(val.s6)), 0, dst+=width*4);
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vstore16(convert_uchar16(colorsFull >> unpack(val.s7)), 0, dst+=width*4);
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}
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kernel void DecodeCMPR(global uchar *dst,
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const global uchar *src, int width)
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{
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int x = get_global_id(0) * 8, y = get_global_id(1) * 8;
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src += x * 4 + (y * width) / 2;
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dst += (y * width + x) * 4;
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decodeCMPRBlock(dst, src, width); src += 8;
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decodeCMPRBlock(dst + 16, src, width); src += 8;
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decodeCMPRBlock(dst + 16 * width, src, width); src += 8;
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decodeCMPRBlock(dst + 16 * (width + 1), src, width);
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} |