mirror of
https://chromium.googlesource.com/libyuv/libyuv
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585a126140
TEST=talk unittests BUG=none Review URL: http://webrtc-codereview.appspot.com/251003 git-svn-id: http://libyuv.googlecode.com/svn/trunk@46 16f28f9a-4ce2-e073-06de-1de4eb20be90
615 lines
17 KiB
C++
615 lines
17 KiB
C++
/*
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* Copyright (c) 2011 The LibYuv project authors. All Rights Reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#include "row.h"
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extern "C" {
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#ifdef HAS_ARGBTOYROW_SSSE3
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// Constant multiplication table for converting ARGB to I400.
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extern "C" TALIGN16(const uint8, kMultiplyMaskARGBToI400[16]) = {
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13u, 64u, 33u, 0u, 13u, 64u, 33u, 0u, 13u, 64u, 33u, 0u, 13u, 64u, 33u, 0u
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};
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extern "C" TALIGN16(const uint8, kAdd16[16]) = {
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1u, 1u, 1u, 1u, 1u, 1u, 1u, 1u, 1u, 1u, 1u, 1u, 1u, 1u, 1u, 1u
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};
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void ARGBToYRow_SSSE3(const uint8* src_argb, uint8* dst_y, int pix) {
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asm volatile(
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"movdqa (%3),%%xmm7\n"
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"movdqa (%4),%%xmm6\n"
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"movdqa %%xmm6,%%xmm5\n"
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"psllw $0x4,%%xmm5\n" // Generate a mask of 0x10 on each byte.
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"1:"
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"movdqa (%0),%%xmm0\n"
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"pmaddubsw %%xmm7,%%xmm0\n"
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"movdqa 0x10(%0),%%xmm1\n"
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"psrlw $0x7,%%xmm0\n"
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"pmaddubsw %%xmm7,%%xmm1\n"
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"lea 0x20(%0),%0\n"
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"psrlw $0x7,%%xmm1\n"
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"packuswb %%xmm1,%%xmm0\n"
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"pmaddubsw %%xmm6,%%xmm0\n"
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"packuswb %%xmm0,%%xmm0\n"
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"paddb %%xmm5,%%xmm0\n"
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"movq %%xmm0,(%1)\n"
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"lea 0x8(%1),%1\n"
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"sub $0x8,%2\n"
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"ja 1b\n"
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: "+r"(src_argb), // %0
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"+r"(dst_y), // %1
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"+r"(pix) // %2
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: "r"(kMultiplyMaskARGBToI400), // %3
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"r"(kAdd16) // %4
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: "memory"
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);
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}
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#endif
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static inline int RGBToY(uint8 r, uint8 g, uint8 b) {
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return (( 66 * r + 129 * g + 25 * b + 128) >> 8) + 16;
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}
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static inline int RGBToU(uint8 r, uint8 g, uint8 b) {
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return ((-38 * r - 74 * g + 112 * b + 128) >> 8) + 128;
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}
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static inline int RGBToV(uint8 r, uint8 g, uint8 b) {
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return ((112 * r - 94 * g - 18 * b + 128) >> 8) + 128;
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}
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void ARGBToYRow_C(const uint8* src_argb0, uint8* dst_y, int width) {
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for (int x = 0; x < width; ++x) {
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dst_y[0] = RGBToY(src_argb0[2], src_argb0[1], src_argb0[0]);
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src_argb0 += 4;
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dst_y += 1;
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}
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}
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void ARGBToUVRow_C(const uint8* src_argb0, int src_stride_argb,
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uint8* dst_u, uint8* dst_v, int width) {
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const uint8* src_argb1 = src_argb0 + src_stride_argb;
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for (int x = 0; x < width - 1; x += 2) {
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uint8 ab = (src_argb0[0] + src_argb0[4] + src_argb1[0] + src_argb1[4]) >> 2;
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uint8 ag = (src_argb0[1] + src_argb0[5] + src_argb1[1] + src_argb1[5]) >> 2;
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uint8 ar = (src_argb0[2] + src_argb0[6] + src_argb1[2] + src_argb1[6]) >> 2;
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dst_u[0] = RGBToU(ar, ag, ab);
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dst_v[0] = RGBToV(ar, ag, ab);
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src_argb0 += 8;
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src_argb1 += 8;
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dst_u += 1;
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dst_v += 1;
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}
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if (width & 1) {
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uint8 ab = (src_argb0[0] + src_argb1[0]) >> 1;
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uint8 ag = (src_argb0[1] + src_argb1[1]) >> 1;
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uint8 ar = (src_argb0[2] + src_argb1[2]) >> 1;
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dst_u[0] = RGBToU(ar, ag, ab);
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dst_v[0] = RGBToV(ar, ag, ab);
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}
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}
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#if defined(__x86_64__)
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// 64 bit linux gcc version
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void FastConvertYUVToRGB32Row(const uint8* y_buf, // rdi
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const uint8* u_buf, // rsi
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const uint8* v_buf, // rdx
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uint8* rgb_buf, // rcx
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int width) { // r8
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asm volatile(
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"1:"
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"movzb (%1),%%r10\n"
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"lea 1(%1),%1\n"
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"movzb (%2),%%r11\n"
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"lea 1(%2),%2\n"
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"movq 2048(%5,%%r10,8),%%xmm0\n"
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"movzb (%0),%%r10\n"
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"movq 4096(%5,%%r11,8),%%xmm1\n"
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"movzb 0x1(%0),%%r11\n"
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"paddsw %%xmm1,%%xmm0\n"
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"movq (%5,%%r10,8),%%xmm2\n"
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"lea 2(%0),%0\n"
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"movq (%5,%%r11,8),%%xmm3\n"
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"paddsw %%xmm0,%%xmm2\n"
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"paddsw %%xmm0,%%xmm3\n"
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"shufps $0x44,%%xmm3,%%xmm2\n"
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"psraw $0x6,%%xmm2\n"
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"packuswb %%xmm2,%%xmm2\n"
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"movq %%xmm2,0x0(%3)\n"
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"lea 8(%3),%3\n"
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"sub $0x2,%4\n"
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"ja 1b\n"
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: "+r"(y_buf), // %0
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"+r"(u_buf), // %1
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"+r"(v_buf), // %2
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"+r"(rgb_buf), // %3
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"+r"(width) // %4
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: "r" (_kCoefficientsRgbY) // %5
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: "memory", "r10", "r11", "xmm0", "xmm1", "xmm2", "xmm3"
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);
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}
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void FastConvertYUVToBGRARow(const uint8* y_buf, // rdi
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const uint8* u_buf, // rsi
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const uint8* v_buf, // rdx
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uint8* rgb_buf, // rcx
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int width) { // r8
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asm volatile(
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"1:"
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"movzb (%1),%%r10\n"
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"lea 1(%1),%1\n"
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"movzb (%2),%%r11\n"
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"lea 1(%2),%2\n"
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"movq 2048(%5,%%r10,8),%%xmm0\n"
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"movzb (%0),%%r10\n"
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"movq 4096(%5,%%r11,8),%%xmm1\n"
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"movzb 0x1(%0),%%r11\n"
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"paddsw %%xmm1,%%xmm0\n"
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"movq (%5,%%r10,8),%%xmm2\n"
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"lea 2(%0),%0\n"
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"movq (%5,%%r11,8),%%xmm3\n"
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"paddsw %%xmm0,%%xmm2\n"
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"paddsw %%xmm0,%%xmm3\n"
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"shufps $0x44,%%xmm3,%%xmm2\n"
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"psraw $0x6,%%xmm2\n"
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"packuswb %%xmm2,%%xmm2\n"
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"movq %%xmm2,0x0(%3)\n"
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"lea 8(%3),%3\n"
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"sub $0x2,%4\n"
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"ja 1b\n"
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: "+r"(y_buf), // %0
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"+r"(u_buf), // %1
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"+r"(v_buf), // %2
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"+r"(rgb_buf), // %3
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"+r"(width) // %4
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: "r" (_kCoefficientsBgraY) // %5
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: "memory", "r10", "r11", "xmm0", "xmm1", "xmm2", "xmm3"
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);
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}
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void FastConvertYUVToABGRRow(const uint8* y_buf, // rdi
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const uint8* u_buf, // rsi
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const uint8* v_buf, // rdx
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uint8* rgb_buf, // rcx
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int width) { // r8
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asm volatile(
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"1:"
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"movzb (%1),%%r10\n"
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"lea 1(%1),%1\n"
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"movzb (%2),%%r11\n"
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"lea 1(%2),%2\n"
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"movq 2048(%5,%%r10,8),%%xmm0\n"
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"movzb (%0),%%r10\n"
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"movq 4096(%5,%%r11,8),%%xmm1\n"
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"movzb 0x1(%0),%%r11\n"
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"paddsw %%xmm1,%%xmm0\n"
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"movq (%5,%%r10,8),%%xmm2\n"
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"lea 2(%0),%0\n"
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"movq (%5,%%r11,8),%%xmm3\n"
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"paddsw %%xmm0,%%xmm2\n"
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"paddsw %%xmm0,%%xmm3\n"
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"shufps $0x44,%%xmm3,%%xmm2\n"
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"psraw $0x6,%%xmm2\n"
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"packuswb %%xmm2,%%xmm2\n"
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"movq %%xmm2,0x0(%3)\n"
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"lea 8(%3),%3\n"
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"sub $0x2,%4\n"
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"ja 1b\n"
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: "+r"(y_buf), // %0
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"+r"(u_buf), // %1
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"+r"(v_buf), // %2
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"+r"(rgb_buf), // %3
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"+r"(width) // %4
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: "r" (_kCoefficientsAbgrY) // %5
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: "memory", "r10", "r11", "xmm0", "xmm1", "xmm2", "xmm3"
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);
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}
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void FastConvertYUV444ToRGB32Row(const uint8* y_buf, // rdi
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const uint8* u_buf, // rsi
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const uint8* v_buf, // rdx
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uint8* rgb_buf, // rcx
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int width) { // r8
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asm volatile(
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"1:"
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"movzb (%1),%%r10\n"
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"lea 1(%1),%1\n"
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"movzb (%2),%%r11\n"
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"lea 1(%2),%2\n"
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"movq 2048(%5,%%r10,8),%%xmm0\n"
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"movzb (%0),%%r10\n"
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"movq 4096(%5,%%r11,8),%%xmm1\n"
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"paddsw %%xmm1,%%xmm0\n"
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"movq (%5,%%r10,8),%%xmm2\n"
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"lea 1(%0),%0\n"
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"paddsw %%xmm0,%%xmm2\n"
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"shufps $0x44,%%xmm2,%%xmm2\n"
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"psraw $0x6,%%xmm2\n"
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"packuswb %%xmm2,%%xmm2\n"
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"movd %%xmm2,0x0(%3)\n"
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"lea 4(%3),%3\n"
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"sub $0x1,%4\n"
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"ja 1b\n"
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: "+r"(y_buf), // %0
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"+r"(u_buf), // %1
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"+r"(v_buf), // %2
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"+r"(rgb_buf), // %3
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"+r"(width) // %4
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: "r" (_kCoefficientsRgbY) // %5
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: "memory", "r10", "r11", "xmm0", "xmm1", "xmm2"
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);
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}
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void FastConvertYToRGB32Row(const uint8* y_buf, // rdi
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uint8* rgb_buf, // rcx
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int width) { // r8
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asm volatile(
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"1:"
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"movzb (%0),%%r10\n"
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"movzb 0x1(%0),%%r11\n"
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"movq (%3,%%r10,8),%%xmm2\n"
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"lea 2(%0),%0\n"
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"movq (%3,%%r11,8),%%xmm3\n"
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"shufps $0x44,%%xmm3,%%xmm2\n"
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"psraw $0x6,%%xmm2\n"
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"packuswb %%xmm2,%%xmm2\n"
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"movq %%xmm2,0x0(%1)\n"
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"lea 8(%1),%1\n"
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"sub $0x2,%2\n"
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"ja 1b\n"
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: "+r"(y_buf), // %0
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"+r"(rgb_buf), // %1
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"+r"(width) // %2
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: "r" (_kCoefficientsRgbY) // %3
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: "memory", "r10", "r11", "xmm0", "xmm1", "xmm2", "xmm3"
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);
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}
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#elif defined(__i386__)
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// 32 bit gcc version
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void FastConvertYUVToRGB32Row(const uint8* y_buf,
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const uint8* u_buf,
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const uint8* v_buf,
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uint8* rgb_buf,
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int width);
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asm(
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".text\n"
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#if defined(OSX) || defined(IOS)
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".globl _FastConvertYUVToRGB32Row\n"
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"_FastConvertYUVToRGB32Row:\n"
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#else
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".global FastConvertYUVToRGB32Row\n"
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"FastConvertYUVToRGB32Row:\n"
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#endif
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"pusha\n"
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"mov 0x24(%esp),%edx\n"
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"mov 0x28(%esp),%edi\n"
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"mov 0x2c(%esp),%esi\n"
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"mov 0x30(%esp),%ebp\n"
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"mov 0x34(%esp),%ecx\n"
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"1:"
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"movzbl (%edi),%eax\n"
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"lea 1(%edi),%edi\n"
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"movzbl (%esi),%ebx\n"
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"lea 1(%esi),%esi\n"
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"movq _kCoefficientsRgbY+2048(,%eax,8),%mm0\n"
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"movzbl (%edx),%eax\n"
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"paddsw _kCoefficientsRgbY+4096(,%ebx,8),%mm0\n"
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"movzbl 0x1(%edx),%ebx\n"
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"movq _kCoefficientsRgbY(,%eax,8),%mm1\n"
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"lea 2(%edx),%edx\n"
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"movq _kCoefficientsRgbY(,%ebx,8),%mm2\n"
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"paddsw %mm0,%mm1\n"
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"paddsw %mm0,%mm2\n"
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"psraw $0x6,%mm1\n"
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"psraw $0x6,%mm2\n"
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"packuswb %mm2,%mm1\n"
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"movntq %mm1,0x0(%ebp)\n"
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"lea 8(%ebp),%ebp\n"
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"sub $0x2,%ecx\n"
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"ja 1b\n"
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"popa\n"
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"ret\n"
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);
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void FastConvertYUVToBGRARow(const uint8* y_buf,
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const uint8* u_buf,
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const uint8* v_buf,
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uint8* rgb_buf,
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int width);
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asm(
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".text\n"
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#if defined(OSX) || defined(IOS)
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".globl _FastConvertYUVToBGRARow\n"
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"_FastConvertYUVToBGRARow:\n"
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#else
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".global FastConvertYUVToBGRARow\n"
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"FastConvertYUVToBGRARow:\n"
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#endif
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"pusha\n"
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"mov 0x24(%esp),%edx\n"
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"mov 0x28(%esp),%edi\n"
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"mov 0x2c(%esp),%esi\n"
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"mov 0x30(%esp),%ebp\n"
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"mov 0x34(%esp),%ecx\n"
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"1:"
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"movzbl (%edi),%eax\n"
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"lea 1(%edi),%edi\n"
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"movzbl (%esi),%ebx\n"
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"lea 1(%esi),%esi\n"
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"movq _kCoefficientsBgraY+2048(,%eax,8),%mm0\n"
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"movzbl (%edx),%eax\n"
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"paddsw _kCoefficientsBgraY+4096(,%ebx,8),%mm0\n"
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"movzbl 0x1(%edx),%ebx\n"
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"movq _kCoefficientsBgraY(,%eax,8),%mm1\n"
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"lea 2(%edx),%edx\n"
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"movq _kCoefficientsBgraY(,%ebx,8),%mm2\n"
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"paddsw %mm0,%mm1\n"
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"paddsw %mm0,%mm2\n"
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"psraw $0x6,%mm1\n"
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"psraw $0x6,%mm2\n"
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"packuswb %mm2,%mm1\n"
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"movntq %mm1,0x0(%ebp)\n"
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"lea 8(%ebp),%ebp\n"
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"sub $0x2,%ecx\n"
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"ja 1b\n"
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"popa\n"
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"ret\n"
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);
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void FastConvertYUVToABGRRow(const uint8* y_buf,
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const uint8* u_buf,
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const uint8* v_buf,
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uint8* rgb_buf,
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int width);
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asm(
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".text\n"
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#if defined(OSX) || defined(IOS)
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".globl _FastConvertYUVToABGRRow\n"
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"_FastConvertYUVToABGRRow:\n"
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#else
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".global FastConvertYUVToABGRRow\n"
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"FastConvertYUVToABGRRow:\n"
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#endif
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"pusha\n"
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"mov 0x24(%esp),%edx\n"
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"mov 0x28(%esp),%edi\n"
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"mov 0x2c(%esp),%esi\n"
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"mov 0x30(%esp),%ebp\n"
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"mov 0x34(%esp),%ecx\n"
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"1:"
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"movzbl (%edi),%eax\n"
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"lea 1(%edi),%edi\n"
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"movzbl (%esi),%ebx\n"
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"lea 1(%esi),%esi\n"
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"movq _kCoefficientsAbgrY+2048(,%eax,8),%mm0\n"
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"movzbl (%edx),%eax\n"
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"paddsw _kCoefficientsAbgrY+4096(,%ebx,8),%mm0\n"
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"movzbl 0x1(%edx),%ebx\n"
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"movq _kCoefficientsAbgrY(,%eax,8),%mm1\n"
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"lea 2(%edx),%edx\n"
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"movq _kCoefficientsAbgrY(,%ebx,8),%mm2\n"
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"paddsw %mm0,%mm1\n"
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"paddsw %mm0,%mm2\n"
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"psraw $0x6,%mm1\n"
|
|
"psraw $0x6,%mm2\n"
|
|
"packuswb %mm2,%mm1\n"
|
|
"movntq %mm1,0x0(%ebp)\n"
|
|
"lea 8(%ebp),%ebp\n"
|
|
"sub $0x2,%ecx\n"
|
|
"ja 1b\n"
|
|
"popa\n"
|
|
"ret\n"
|
|
);
|
|
|
|
void FastConvertYUV444ToRGB32Row(const uint8* y_buf,
|
|
const uint8* u_buf,
|
|
const uint8* v_buf,
|
|
uint8* rgb_buf,
|
|
int width);
|
|
asm(
|
|
".text\n"
|
|
#if defined(OSX) || defined(IOS)
|
|
".globl _FastConvertYUV444ToRGB32Row\n"
|
|
"_FastConvertYUV444ToRGB32Row:\n"
|
|
#else
|
|
".global FastConvertYUV444ToRGB32Row\n"
|
|
"FastConvertYUV444ToRGB32Row:\n"
|
|
#endif
|
|
"pusha\n"
|
|
"mov 0x24(%esp),%edx\n"
|
|
"mov 0x28(%esp),%edi\n"
|
|
"mov 0x2c(%esp),%esi\n"
|
|
"mov 0x30(%esp),%ebp\n"
|
|
"mov 0x34(%esp),%ecx\n"
|
|
|
|
"1:"
|
|
"movzbl (%edi),%eax\n"
|
|
"lea 1(%edi),%edi\n"
|
|
"movzbl (%esi),%ebx\n"
|
|
"lea 1(%esi),%esi\n"
|
|
"movq _kCoefficientsRgbY+2048(,%eax,8),%mm0\n"
|
|
"movzbl (%edx),%eax\n"
|
|
"paddsw _kCoefficientsRgbY+4096(,%ebx,8),%mm0\n"
|
|
"lea 1(%edx),%edx\n"
|
|
"paddsw _kCoefficientsRgbY(,%eax,8),%mm0\n"
|
|
"psraw $0x6,%mm0\n"
|
|
"packuswb %mm0,%mm0\n"
|
|
"movd %mm0,0x0(%ebp)\n"
|
|
"lea 4(%ebp),%ebp\n"
|
|
"sub $0x1,%ecx\n"
|
|
"ja 1b\n"
|
|
"popa\n"
|
|
"ret\n"
|
|
);
|
|
|
|
void FastConvertYToRGB32Row(const uint8* y_buf,
|
|
uint8* rgb_buf,
|
|
int width);
|
|
asm(
|
|
".text\n"
|
|
#if defined(OSX) || defined(IOS)
|
|
".globl _FastConvertYToRGB32Row\n"
|
|
"_FastConvertYToRGB32Row:\n"
|
|
#else
|
|
".global FastConvertYToRGB32Row\n"
|
|
"FastConvertYToRGB32Row:\n"
|
|
#endif
|
|
"push %ebx\n"
|
|
"mov 0x8(%esp),%eax\n"
|
|
"mov 0xc(%esp),%edx\n"
|
|
"mov 0x10(%esp),%ecx\n"
|
|
|
|
"1:"
|
|
"movzbl (%eax),%ebx\n"
|
|
"movq _kCoefficientsRgbY(,%ebx,8),%mm0\n"
|
|
"psraw $0x6,%mm0\n"
|
|
"movzbl 0x1(%eax),%ebx\n"
|
|
"movq _kCoefficientsRgbY(,%ebx,8),%mm1\n"
|
|
"psraw $0x6,%mm1\n"
|
|
"packuswb %mm1,%mm0\n"
|
|
"lea 0x2(%eax),%eax\n"
|
|
"movq %mm0,(%edx)\n"
|
|
"lea 0x8(%edx),%edx\n"
|
|
"sub $0x2,%ecx\n"
|
|
"ja 1b\n"
|
|
"pop %ebx\n"
|
|
"ret\n"
|
|
);
|
|
|
|
#else
|
|
// C reference code that mimic the YUV assembly.
|
|
#define packuswb(x) ((x) < 0 ? 0 : ((x) > 255 ? 255 : (x)))
|
|
#define paddsw(x, y) (((x) + (y)) < -32768 ? -32768 : \
|
|
(((x) + (y)) > 32767 ? 32767 : ((x) + (y))))
|
|
|
|
static inline void YuvPixel(uint8 y,
|
|
uint8 u,
|
|
uint8 v,
|
|
uint8* rgb_buf,
|
|
int ashift,
|
|
int rshift,
|
|
int gshift,
|
|
int bshift) {
|
|
|
|
int b = _kCoefficientsRgbY[256+u][0];
|
|
int g = _kCoefficientsRgbY[256+u][1];
|
|
int r = _kCoefficientsRgbY[256+u][2];
|
|
int a = _kCoefficientsRgbY[256+u][3];
|
|
|
|
b = paddsw(b, _kCoefficientsRgbY[512+v][0]);
|
|
g = paddsw(g, _kCoefficientsRgbY[512+v][1]);
|
|
r = paddsw(r, _kCoefficientsRgbY[512+v][2]);
|
|
a = paddsw(a, _kCoefficientsRgbY[512+v][3]);
|
|
|
|
b = paddsw(b, _kCoefficientsRgbY[y][0]);
|
|
g = paddsw(g, _kCoefficientsRgbY[y][1]);
|
|
r = paddsw(r, _kCoefficientsRgbY[y][2]);
|
|
a = paddsw(a, _kCoefficientsRgbY[y][3]);
|
|
|
|
b >>= 6;
|
|
g >>= 6;
|
|
r >>= 6;
|
|
a >>= 6;
|
|
|
|
*reinterpret_cast<uint32*>(rgb_buf) = (packuswb(b) << bshift) |
|
|
(packuswb(g) << gshift) |
|
|
(packuswb(r) << rshift) |
|
|
(packuswb(a) << ashift);
|
|
}
|
|
|
|
void FastConvertYUVToRGB32Row(const uint8* y_buf,
|
|
const uint8* u_buf,
|
|
const uint8* v_buf,
|
|
uint8* rgb_buf,
|
|
int width) {
|
|
for (int x = 0; x < width; x += 2) {
|
|
uint8 u = u_buf[x >> 1];
|
|
uint8 v = v_buf[x >> 1];
|
|
uint8 y0 = y_buf[x];
|
|
YuvPixel(y0, u, v, rgb_buf, 24, 16, 8, 0);
|
|
if ((x + 1) < width) {
|
|
uint8 y1 = y_buf[x + 1];
|
|
YuvPixel(y1, u, v, rgb_buf + 4, 24, 16, 8, 0);
|
|
}
|
|
rgb_buf += 8; // Advance 2 pixels.
|
|
}
|
|
}
|
|
|
|
void FastConvertYUVToBGRARow(const uint8* y_buf,
|
|
const uint8* u_buf,
|
|
const uint8* v_buf,
|
|
uint8* rgb_buf,
|
|
int width) {
|
|
for (int x = 0; x < width; x += 2) {
|
|
uint8 u = u_buf[x >> 1];
|
|
uint8 v = v_buf[x >> 1];
|
|
uint8 y0 = y_buf[x];
|
|
YuvPixel(y0, u, v, rgb_buf, 0, 8, 16, 24);
|
|
if ((x + 1) < width) {
|
|
uint8 y1 = y_buf[x + 1];
|
|
YuvPixel(y1, u, v, rgb_buf + 4, 0, 8, 16, 24);
|
|
}
|
|
rgb_buf += 8; // Advance 2 pixels.
|
|
}
|
|
}
|
|
|
|
void FastConvertYUVToABGRRow(const uint8* y_buf,
|
|
const uint8* u_buf,
|
|
const uint8* v_buf,
|
|
uint8* rgb_buf,
|
|
int width) {
|
|
for (int x = 0; x < width; x += 2) {
|
|
uint8 u = u_buf[x >> 1];
|
|
uint8 v = v_buf[x >> 1];
|
|
uint8 y0 = y_buf[x];
|
|
YuvPixel(y0, u, v, rgb_buf, 24, 0, 8, 16);
|
|
if ((x + 1) < width) {
|
|
uint8 y1 = y_buf[x + 1];
|
|
YuvPixel(y1, u, v, rgb_buf + 4, 24, 0, 8, 16);
|
|
}
|
|
rgb_buf += 8; // Advance 2 pixels.
|
|
}
|
|
}
|
|
|
|
void FastConvertYUV444ToRGB32Row(const uint8* y_buf,
|
|
const uint8* u_buf,
|
|
const uint8* v_buf,
|
|
uint8* rgb_buf,
|
|
int width) {
|
|
for (int x = 0; x < width; ++x) {
|
|
uint8 u = u_buf[x];
|
|
uint8 v = v_buf[x];
|
|
uint8 y = y_buf[x];
|
|
YuvPixel(y, u, v, rgb_buf, 24, 16, 8, 0);
|
|
rgb_buf += 4; // Advance 1 pixel.
|
|
}
|
|
}
|
|
|
|
void FastConvertYToRGB32Row(const uint8* y_buf,
|
|
uint8* rgb_buf,
|
|
int width) {
|
|
for (int x = 0; x < width; ++x) {
|
|
uint8 y = y_buf[x];
|
|
YuvPixel(y, 128, 128, rgb_buf, 24, 16, 8, 0);
|
|
rgb_buf += 4; // Advance 1 pixel.
|
|
}
|
|
}
|
|
|
|
#endif
|
|
} // extern "C"
|