132 lines
4.3 KiB
C++
132 lines
4.3 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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#if _WIN32
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#include <intrin.h>
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#endif
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#include <xmmintrin.h>
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#include "XFBConvert.h"
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#include "Common.h"
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namespace {
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const __m128i _bias1 = _mm_set_epi32(128/2 << 16, 0, 128/2 << 16, 16 << 16);
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const __m128i _bias2 = _mm_set_epi32(128/2 << 16, 16 << 16, 128/2 << 16, 0);
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__m128i _y[256];
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__m128i _u[256];
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__m128i _v[256];
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__m128i _r1[256];
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__m128i _r2[256];
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__m128i _g1[256];
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__m128i _g2[256];
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__m128i _b1[256];
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__m128i _b2[256];
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} // namespace
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void InitXFBConvTables()
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{
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for (int i = 0; i < 256; i++)
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{
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_y[i] = _mm_set_epi32(0xFFFFFFF, 76283*(i - 16), 76283*(i - 16), 76283*(i - 16));
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_u[i] = _mm_set_epi32( 0, 0, -25624 * (i - 128), 132252 * (i - 128));
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_v[i] = _mm_set_epi32( 0, 104595 * (i - 128), -53281 * (i - 128), 0);
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_r1[i] = _mm_add_epi32(_mm_set_epi32( 28770 * i / 2, 0, -9699 * i / 2, 16843 * i),
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_bias1);
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_g1[i] = _mm_set_epi32(-24117 * i / 2, 0, -19071 * i / 2, 33030 * i);
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_b1[i] = _mm_set_epi32( -4653 * i / 2, 0, 28770 * i / 2, 6423 * i);
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_r2[i] = _mm_add_epi32(_mm_set_epi32( 28770 * i / 2, 16843 * i, -9699 * i / 2, 0),
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_bias2);
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_g2[i] = _mm_set_epi32(-24117 * i / 2, 33030 * i, -19071 * i / 2, 0);
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_b2[i] = _mm_set_epi32( -4653 * i / 2, 6423 * i, 28770 * i / 2, 0);
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}
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}
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void ConvertFromXFB(u32 *dst, const u8* _pXFB, int width, int height)
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{
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if (((size_t)dst & 0xF) != 0) {
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PanicAlert("ConvertFromXFB - unaligned destination");
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}
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const unsigned char *src = _pXFB;
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u32 numBlocks = ((width * height) / 2) / 2;
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for (u32 i = 0; i < numBlocks; i++)
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{
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__m128i y1 = _y[src[0]];
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__m128i u = _u[src[1]];
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__m128i y2 = _y[src[2]];
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__m128i v = _v[src[3]];
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__m128i y1_2 = _y[src[4+0]];
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__m128i u_2 = _u[src[4+1]];
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__m128i y2_2 = _y[src[4+2]];
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__m128i v_2 = _v[src[4+3]];
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__m128i c1 = _mm_srai_epi32(_mm_add_epi32(y1, _mm_add_epi32(u, v)), 16);
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__m128i c2 = _mm_srai_epi32(_mm_add_epi32(y2, _mm_add_epi32(u, v)), 16);
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__m128i c3 = _mm_srai_epi32(_mm_add_epi32(y1_2, _mm_add_epi32(u_2, v_2)), 16);
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__m128i c4 = _mm_srai_epi32(_mm_add_epi32(y2_2, _mm_add_epi32(u_2, v_2)), 16);
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__m128i four_dest = _mm_packus_epi16(_mm_packs_epi32(c1, c2), _mm_packs_epi32(c3, c4));
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_mm_store_si128((__m128i *)dst, four_dest);
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dst += 4;
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src += 8;
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}
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}
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void ConvertToXFB(u32 *dst, const u8* _pEFB, int width, int height)
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{
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const unsigned char *src = _pEFB;
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u32 numBlocks = ((width * height) / 2) / 4;
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if (((size_t)dst & 0xF) != 0) {
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PanicAlert("ConvertToXFB - unaligned XFB");
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}
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for (u32 i = 0; i < numBlocks; i++)
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{
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__m128i yuyv0 = _mm_srai_epi32(
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_mm_add_epi32(
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_mm_add_epi32(_r1[src[0]], _mm_add_epi32(_g1[src[1]], _b1[src[2]])),
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_mm_add_epi32(_r2[src[4]], _mm_add_epi32(_g2[src[5]], _b2[src[6]]))), 16);
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src += 8;
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__m128i yuyv1 = _mm_srai_epi32(
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_mm_add_epi32(
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_mm_add_epi32(_r1[src[0]], _mm_add_epi32(_g1[src[1]], _b1[src[2]])),
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_mm_add_epi32(_r2[src[4]], _mm_add_epi32(_g2[src[5]], _b2[src[6]]))), 16);
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src += 8;
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__m128i yuyv2 = _mm_srai_epi32(
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_mm_add_epi32(
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_mm_add_epi32(_r1[src[0]], _mm_add_epi32(_g1[src[1]], _b1[src[2]])),
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_mm_add_epi32(_r2[src[4]], _mm_add_epi32(_g2[src[5]], _b2[src[6]]))), 16);
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src += 8;
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__m128i yuyv3 = _mm_srai_epi32(
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_mm_add_epi32(
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_mm_add_epi32(_r1[src[0]], _mm_add_epi32(_g1[src[1]], _b1[src[2]])),
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_mm_add_epi32(_r2[src[4]], _mm_add_epi32(_g2[src[5]], _b2[src[6]]))), 16);
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src += 8;
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__m128i four_dest = _mm_packus_epi16(_mm_packs_epi32(yuyv0, yuyv1), _mm_packs_epi32(yuyv2, yuyv3));
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_mm_store_si128((__m128i *)dst, four_dest);
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dst += 4;
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}
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}
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