mirror of
https://github.com/libretro/ppsspp.git
synced 2024-11-28 19:00:23 +00:00
272 lines
8.3 KiB
C++
272 lines
8.3 KiB
C++
// Copyright (C) 2015 PPSSPP 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 or later versions.
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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 git repository and contact information can be found at
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// https://github.com/hrydgard/ppsspp and http://www.ppsspp.org/.
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// TODO: Make SSE2 and NEON versions of many of these.
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#include "Common.h"
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#include "CPUDetect.h"
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#include "ColorConv.h"
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#include "CommonTypes.h"
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#ifdef _M_SSE
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#include <xmmintrin.h>
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#endif
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inline u16 RGBA8888toRGB565(u32 px) {
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return ((px >> 3) & 0x001F) | ((px >> 5) & 0x07E0) | ((px >> 8) & 0xF800);
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}
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inline u16 RGBA8888toRGBA4444(u32 px) {
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return ((px >> 4) & 0x000F) | ((px >> 8) & 0x00F0) | ((px >> 12) & 0x0F00) | ((px >> 16) & 0xF000);
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}
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inline u16 RGBA8888toRGBA5551(u32 px) {
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return ((px >> 3) & 0x001F) | ((px >> 6) & 0x03E0) | ((px >> 9) & 0x7C00) | ((px >> 16) & 0x8000);
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}
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inline u16 BGRA8888toRGB565(u32 px) {
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return ((px >> 19) & 0x001F) | ((px >> 5) & 0x07E0) | ((px << 8) & 0xF800);
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}
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inline u16 BGRA8888toRGBA4444(u32 px) {
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return ((px >> 20) & 0x000F) | ((px >> 8) & 0x00F0) | ((px << 4) & 0x0F00) | ((px >> 16) & 0xF000);
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}
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inline u32 RGBA2BGRA(u32 src) {
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const u32 r = (src & 0x000000FF) << 16;
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const u32 ga = src & 0xFF00FF00;
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const u32 b = (src & 0x00FF0000) >> 16;
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return r | ga | b;
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}
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// Used heavily in Test Drive Unlimited (for no good reason...)
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void ConvertBGRA8888ToRGB565(u16 *dst, const u32 *src, int numPixels) {
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#if _M_SSE >= 0x401
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const __m128i maskG = _mm_set1_epi32(0x0000FC00);
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const __m128i maskRB = _mm_set1_epi32(0x00F800F8);
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const __m128i mask = _mm_set1_epi32(0x0000FFFF);
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const __m128i *srcp = (const __m128i *)src;
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__m128i *dstp = (__m128i *)dst;
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int sseChunks = (numPixels / 4) & ~1;
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// SSE 4.1 required for _mm_packus_epi32.
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if (((intptr_t)src & 0xF) || ((intptr_t)dst & 0xF) || !cpu_info.bSSE4_1) {
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sseChunks = 0;
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}
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for (int i = 0; i < sseChunks; i += 2) {
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__m128i c1 = _mm_load_si128(&srcp[i + 0]);
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__m128i c2 = _mm_load_si128(&srcp[i + 1]);
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__m128i g, rb;
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g = _mm_and_si128(c1, maskG);
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g = _mm_srli_epi32(g, 5);
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rb = _mm_and_si128(c1, maskRB);
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rb = _mm_or_si128(_mm_srli_epi32(rb, 3), _mm_srli_epi32(rb, 8));
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c1 = _mm_and_si128(_mm_or_si128(g, rb), mask);
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g = _mm_and_si128(c2, maskG);
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g = _mm_srli_epi32(g, 5);
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rb = _mm_and_si128(c2, maskRB);
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rb = _mm_or_si128(_mm_srli_epi32(rb, 3), _mm_srli_epi32(rb, 8));
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c2 = _mm_and_si128(_mm_or_si128(g, rb), mask);
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_mm_store_si128(&dstp[i / 2], _mm_packus_epi32(c1, c2));
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}
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// The remainder starts right after those done via SSE.
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u32 i = sseChunks * 4;
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#else
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u32 i = 0;
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#endif
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for (int x = 0; x < numPixels; ++x) {
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dst[x] = BGRA8888toRGB565(src[x]);
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}
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}
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void ConvertRGBA8888ToRGB565(u16 *dst, const u32 *src, int numPixels) {
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for (int x = 0; x < numPixels; x++) {
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dst[x] = RGBA8888toRGB565(src[x]);
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}
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}
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void ConvertBGRA8888ToRGBA4444(u16 *dst, const u32 *src, int numPixels) {
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for (int x = 0; x < numPixels; ++x) {
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dst[x] = BGRA8888toRGBA4444(src[x]);
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}
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}
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void ConvertRGBA8888ToRGBA4444(u16 *dst, const u32 *src, int numPixels) {
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for (int x = 0; x < numPixels; ++x) {
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dst[x] = RGBA8888toRGBA4444(src[x]);
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}
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}
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void ConvertBGRA8888ToRGBA8888(u32 *dst, const u32 *src, int numPixels) {
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#ifdef _M_SSE
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const __m128i maskGA = _mm_set1_epi32(0xFF00FF00);
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const __m128i *srcp = (const __m128i *)src;
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__m128i *dstp = (__m128i *)dst;
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int sseChunks = numPixels / 4;
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if (((intptr_t)src & 0xF) || ((intptr_t)dst & 0xF)) {
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sseChunks = 0;
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}
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for (int i = 0; i < sseChunks; ++i) {
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__m128i c = _mm_load_si128(&srcp[i]);
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__m128i rb = _mm_andnot_si128(maskGA, c);
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c = _mm_and_si128(c, maskGA);
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__m128i b = _mm_srli_epi32(rb, 16);
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__m128i r = _mm_slli_epi32(rb, 16);
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c = _mm_or_si128(_mm_or_si128(c, r), b);
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_mm_store_si128(&dstp[i], c);
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}
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// The remainder starts right after those done via SSE.
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int i = sseChunks * 4;
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#else
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int i = 0;
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#endif
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for (; i < numPixels; i++) {
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const u32 c = src[i];
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dst[i] = ((c >> 16) & 0x000000FF) |
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((c >> 0) & 0xFF00FF00) |
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((c << 16) & 0x00FF0000);
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}
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}
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void ConvertRGBA8888ToRGBA5551(u16 *dst, const u32 *src, int numPixels) {
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#if _M_SSE >= 0x401
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const __m128i maskAG = _mm_set1_epi32(0x8000F800);
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const __m128i maskRB = _mm_set1_epi32(0x00F800F8);
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const __m128i mask = _mm_set1_epi32(0x0000FFFF);
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const __m128i *srcp = (const __m128i *)src;
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__m128i *dstp = (__m128i *)dst;
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int sseChunks = (numPixels / 4) & ~1;
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// SSE 4.1 required for _mm_packus_epi32.
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if (((intptr_t)src & 0xF) || ((intptr_t)dst & 0xF) || !cpu_info.bSSE4_1) {
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sseChunks = 0;
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}
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for (int i = 0; i < sseChunks; i += 2) {
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__m128i c1 = _mm_load_si128(&srcp[i + 0]);
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__m128i c2 = _mm_load_si128(&srcp[i + 1]);
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__m128i ag, rb;
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ag = _mm_and_si128(c1, maskAG);
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ag = _mm_or_si128(_mm_srli_epi32(ag, 16), _mm_srli_epi32(ag, 6));
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rb = _mm_and_si128(c1, maskRB);
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rb = _mm_or_si128(_mm_srli_epi32(rb, 3), _mm_srli_epi32(rb, 9));
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c1 = _mm_and_si128(_mm_or_si128(ag, rb), mask);
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ag = _mm_and_si128(c2, maskAG);
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ag = _mm_or_si128(_mm_srli_epi32(ag, 16), _mm_srli_epi32(ag, 6));
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rb = _mm_and_si128(c2, maskRB);
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rb = _mm_or_si128(_mm_srli_epi32(rb, 3), _mm_srli_epi32(rb, 9));
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c2 = _mm_and_si128(_mm_or_si128(ag, rb), mask);
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_mm_store_si128(&dstp[i / 2], _mm_packus_epi32(c1, c2));
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}
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// The remainder starts right after those done via SSE.
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int i = sseChunks * 4;
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#else
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int i = 0;
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#endif
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for (; i < numPixels; i++) {
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dst[i] = RGBA8888toRGBA5551(src[i]);
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}
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}
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inline u16 BGRA8888toRGBA5551(u32 px) {
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return ((px >> 19) & 0x001F) | ((px >> 6) & 0x03E0) | ((px << 7) & 0x7C00) | ((px >> 16) & 0x8000);
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}
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void ConvertBGRA8888ToRGBA5551(u16 *dst, const u32 *src, int numPixels) {
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#if _M_SSE >= 0x401
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const __m128i maskAG = _mm_set1_epi32(0x8000F800);
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const __m128i maskRB = _mm_set1_epi32(0x00F800F8);
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const __m128i mask = _mm_set1_epi32(0x0000FFFF);
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const __m128i *srcp = (const __m128i *)src;
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__m128i *dstp = (__m128i *)dst;
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int sseChunks = (numPixels / 4) & ~1;
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// SSE 4.1 required for _mm_packus_epi32.
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if (((intptr_t)src & 0xF) || ((intptr_t)dst & 0xF) || !cpu_info.bSSE4_1) {
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sseChunks = 0;
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}
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for (int i = 0; i < sseChunks; i += 2) {
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__m128i c1 = _mm_load_si128(&srcp[i + 0]);
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__m128i c2 = _mm_load_si128(&srcp[i + 1]);
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__m128i ag, rb;
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ag = _mm_and_si128(c1, maskAG);
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ag = _mm_or_si128(_mm_srli_epi32(ag, 16), _mm_srli_epi32(ag, 6));
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rb = _mm_and_si128(c1, maskRB);
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rb = _mm_or_si128(_mm_srli_epi32(rb, 19), _mm_slli_epi32(rb, 7));
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c1 = _mm_and_si128(_mm_or_si128(ag, rb), mask);
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ag = _mm_and_si128(c2, maskAG);
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ag = _mm_or_si128(_mm_srli_epi32(ag, 16), _mm_srli_epi32(ag, 6));
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rb = _mm_and_si128(c2, maskRB);
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rb = _mm_or_si128(_mm_srli_epi32(rb, 19), _mm_slli_epi32(rb, 7));
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c2 = _mm_and_si128(_mm_or_si128(ag, rb), mask);
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_mm_store_si128(&dstp[i / 2], _mm_packus_epi32(c1, c2));
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}
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// The remainder starts right after those done via SSE.
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int i = sseChunks * 4;
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#else
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int i = 0;
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#endif
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for (; i < numPixels; i++) {
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dst[i] = BGRA8888toRGBA5551(src[i]);
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}
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}
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void ConvertRGB565ToRGBA888F(u32 *dst32, const u16 *src, int numPixels) {
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u8 *dst = (u8 *)dst32;
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for (int x = 0; x < numPixels; x++) {
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u16 col = src[x];
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dst[x * 4] = Convert5To8((col)& 0x1f);
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dst[x * 4 + 1] = Convert6To8((col >> 5) & 0x3f);
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dst[x * 4 + 2] = Convert5To8((col >> 11) & 0x1f);
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dst[x * 4 + 3] = 255;
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}
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}
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void ConvertRGBA5551ToRGBA8888(u32 *dst32, const u16 *src, int numPixels) {
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u8 *dst = (u8 *)dst32;
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for (int x = 0; x < numPixels; x++) {
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u16 col = src[x];
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dst[x * 4] = Convert5To8((col)& 0x1f);
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dst[x * 4 + 1] = Convert5To8((col >> 5) & 0x1f);
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dst[x * 4 + 2] = Convert5To8((col >> 10) & 0x1f);
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dst[x * 4 + 3] = (col >> 15) ? 255 : 0;
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}
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}
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void ConvertRGBA4444ToRGBA8888(u32 *dst32, const u16 *src, int numPixels) {
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u8 *dst = (u8 *)dst32;
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for (int x = 0; x < numPixels; x++) {
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u16 col = src[x];
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dst[x * 4] = Convert4To8((col >> 8) & 0xf);
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dst[x * 4 + 1] = Convert4To8((col >> 4) & 0xf);
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dst[x * 4 + 2] = Convert4To8(col & 0xf);
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dst[x * 4 + 3] = Convert4To8(col >> 12);
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}
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}
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