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|
/*
* Copyright (C) 2010-2015 Hendrik Leppkes
* http://www.1f0.de
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "stdafx.h"
#include <emmintrin.h>
#include <ppl.h>
#include "pixconv_internal.h"
#include "pixconv_sse2_templates.h"
#pragma warning(push)
#pragma warning(disable: 4556)
#define DITHER_STEPS 3
// This function converts 4x2 pixels from the source into 4x2 RGB pixels in the destination
template <LAVPixelFormat inputFormat, int shift, int outFmt, int right_edge, int dithertype, int ycgco> __forceinline
static int yuv2rgb_convert_pixels(const uint8_t* &srcY, const uint8_t* &srcU, const uint8_t* &srcV, uint8_t* &dst, ptrdiff_t srcStrideY, ptrdiff_t srcStrideUV, ptrdiff_t dstStride, ptrdiff_t line, const RGBCoeffs *coeffs, const uint16_t* &dithers, ptrdiff_t pos)
{
__m128i xmm0,xmm1,xmm2,xmm3,xmm4,xmm5,xmm6,xmm7;
xmm7 = _mm_setzero_si128 ();
// Shift > 0 is for 9/10 bit formats
if (inputFormat == LAVPixFmt_P010) {
// Load 2 32-bit macro pixels from each line, which contain 4 UV at 16-bit each samples
PIXCONV_LOAD_PIXEL8(xmm0, srcU);
PIXCONV_LOAD_PIXEL8(xmm2, srcU+srcStrideUV);
} else if (shift > 0) {
// Load 4 U/V values from line 0/1 into registers
PIXCONV_LOAD_4PIXEL16(xmm1, srcU);
PIXCONV_LOAD_4PIXEL16(xmm3, srcU+srcStrideUV);
PIXCONV_LOAD_4PIXEL16(xmm0, srcV);
PIXCONV_LOAD_4PIXEL16(xmm2, srcV+srcStrideUV);
// Interleave U and V
xmm0 = _mm_unpacklo_epi16(xmm1, xmm0); /* 0V0U0V0U */
xmm2 = _mm_unpacklo_epi16(xmm3, xmm2); /* 0V0U0V0U */
} else if (inputFormat == LAVPixFmt_NV12) {
// Load 4 16-bit macro pixels, which contain 4 UV samples
PIXCONV_LOAD_4PIXEL16(xmm0, srcU);
PIXCONV_LOAD_4PIXEL16(xmm2, srcU+srcStrideUV);
// Expand to 16-bit
xmm0 = _mm_unpacklo_epi8(xmm0, xmm7); /* 0V0U0V0U */
xmm2 = _mm_unpacklo_epi8(xmm2, xmm7); /* 0V0U0V0U */
} else {
PIXCONV_LOAD_4PIXEL8(xmm1, srcU);
PIXCONV_LOAD_4PIXEL8(xmm3, srcU+srcStrideUV);
PIXCONV_LOAD_4PIXEL8(xmm0, srcV);
PIXCONV_LOAD_4PIXEL8(xmm2, srcV+srcStrideUV);
// Interleave U and V
xmm0 = _mm_unpacklo_epi8(xmm1, xmm0); /* VUVU0000 */
xmm2 = _mm_unpacklo_epi8(xmm3, xmm2); /* VUVU0000 */
// Expand to 16-bit
xmm0 = _mm_unpacklo_epi8(xmm0, xmm7); /* 0V0U0V0U */
xmm2 = _mm_unpacklo_epi8(xmm2, xmm7); /* 0V0U0V0U */
}
// xmm0/xmm2 contain 4 interleaved U/V samples from two lines each in the 16bit parts, still in their native bitdepth
// Chroma upsampling required
if (inputFormat == LAVPixFmt_YUV420 || inputFormat == LAVPixFmt_NV12 || inputFormat == LAVPixFmt_YUV422 || inputFormat == LAVPixFmt_P010) {
if (inputFormat == LAVPixFmt_P010) {
srcU += 8;
srcV += 8;
} else if (shift > 0 || inputFormat == LAVPixFmt_NV12) {
srcU += 4;
srcV += 4;
} else {
srcU += 2;
srcV += 2;
}
// Cut off the over-read into the stride and replace it with the last valid pixel
if (right_edge) {
xmm6 = _mm_set_epi32(0, 0xffffffff, 0, 0);
// First line
xmm1 = xmm0;
xmm1 = _mm_slli_si128(xmm1, 4);
xmm1 = _mm_and_si128(xmm1, xmm6);
xmm0 = _mm_andnot_si128(xmm6, xmm0);
xmm0 = _mm_or_si128(xmm0, xmm1);
// Second line
xmm3 = xmm2;
xmm3 = _mm_slli_si128(xmm3, 4);
xmm3 = _mm_and_si128(xmm3, xmm6);
xmm2 = _mm_andnot_si128(xmm6, xmm2);
xmm2 = _mm_or_si128(xmm2, xmm3);
}
// 4:2:0 - upsample to 4:2:2 using 75:25
if (inputFormat == LAVPixFmt_YUV420 || inputFormat == LAVPixFmt_NV12 || inputFormat == LAVPixFmt_P010) {
// Too high bitdepth, shift down to 14-bit
if (shift >= 7) {
xmm0 = _mm_srli_epi16(xmm0, shift-6);
xmm2 = _mm_srli_epi16(xmm2, shift-6);
}
xmm1 = xmm0;
xmm1 = _mm_add_epi16(xmm1, xmm0); /* 2x line 0 */
xmm1 = _mm_add_epi16(xmm1, xmm0); /* 3x line 0 */
xmm1 = _mm_add_epi16(xmm1, xmm2); /* 3x line 0 + line 1 (10bit) */
xmm3 = xmm2;
xmm3 = _mm_add_epi16(xmm3, xmm2); /* 2x line 1 */
xmm3 = _mm_add_epi16(xmm3, xmm2); /* 3x line 1 */
xmm3 = _mm_add_epi16(xmm3, xmm0); /* 3x line 1 + line 0 (10bit) */
// If the bit depth is too high, we need to reduce it here (max 15bit)
// 14-16 bits need the reduction, because they all result in a 16-bit result
if (shift >= 6) {
xmm1 = _mm_srli_epi16(xmm1, 1);
xmm3 = _mm_srli_epi16(xmm3, 1);
}
} else {
xmm1 = xmm0;
xmm3 = xmm2;
// Shift to maximum of 15-bit, if required
if (shift >= 8) {
xmm1 = _mm_srli_epi16(xmm1, 1);
xmm3 = _mm_srli_epi16(xmm3, 1);
}
}
// After this step, xmm1 and xmm3 contain 8 16-bit values, V and U interleaved. For 4:2:2, filling 8 to 15 bits (original bit depth). For 4:2:0, filling input+2 bits (10 to 15).
// Upsample to 4:4:4 using 100:0, 50:50, 0:100 scheme (MPEG2 chroma siting)
// TODO: MPEG1 chroma siting, use 75:25
xmm0 = xmm1; /* UV UV UV UV */
xmm0 = _mm_unpacklo_epi32(xmm0, xmm7); /* UV 00 UV 00 */
xmm1 = _mm_srli_si128(xmm1, 4); /* UV UV UV 00 */
xmm1 = _mm_unpacklo_epi32(xmm7, xmm1); /* 00 UV 00 UV */
xmm1 = _mm_add_epi16(xmm1, xmm0); /* UV UV UV UV */
xmm1 = _mm_add_epi16(xmm1, xmm0); /* 2UV UV 2UV UV */
xmm0 = _mm_slli_si128(xmm0, 4); /* 00 UV 00 UV */
xmm1 = _mm_add_epi16(xmm1, xmm0); /* 2UV 2UV 2UV 2UV */
// Same for the second row
xmm2 = xmm3; /* UV UV UV UV */
xmm2 = _mm_unpacklo_epi32(xmm2, xmm7); /* UV 00 UV 00 */
xmm3 = _mm_srli_si128(xmm3, 4); /* UV UV UV 00 */
xmm3 = _mm_unpacklo_epi32(xmm7, xmm3); /* 00 UV 00 UV */
xmm3 = _mm_add_epi16(xmm3, xmm2); /* UV UV UV UV */
xmm3 = _mm_add_epi16(xmm3, xmm2); /* 2UV UV 2UV UV */
xmm2 = _mm_slli_si128(xmm2, 4); /* 00 UV 00 UV */
xmm3 = _mm_add_epi16(xmm3, xmm2); /* 2UV 2UV 2UV 2UV */
// Shift the result to 12 bit
// For 10-bit input, we need to shift one bit off, or we exceed the allowed processing depth
// For 8-bit, we need to add one bit
if ((inputFormat == LAVPixFmt_YUV420 && shift > 1) || inputFormat == LAVPixFmt_P010) {
if (shift >= 5) {
xmm1 = _mm_srli_epi16(xmm1, 4);
xmm3 = _mm_srli_epi16(xmm3, 4);
} else {
xmm1 = _mm_srli_epi16(xmm1, shift-1);
xmm3 = _mm_srli_epi16(xmm3, shift-1);
}
} else if (inputFormat == LAVPixFmt_YUV422) {
if (shift >= 7) {
xmm1 = _mm_srli_epi16(xmm1, 4);
xmm3 = _mm_srli_epi16(xmm3, 4);
} else if (shift > 3) {
xmm1 = _mm_srli_epi16(xmm1, shift-3);
xmm3 = _mm_srli_epi16(xmm3, shift-3);
} else if (shift < 3) {
xmm1 = _mm_slli_epi16(xmm1, 3-shift);
xmm3 = _mm_slli_epi16(xmm3, 3-shift);
}
} else if ((inputFormat == LAVPixFmt_YUV420 && shift == 0) || inputFormat == LAVPixFmt_NV12) {
xmm1 = _mm_slli_epi16(xmm1, 1);
xmm3 = _mm_slli_epi16(xmm3, 1);
}
// 12-bit result, xmm1 & xmm3 with 4 UV combinations each
} else if (inputFormat == LAVPixFmt_YUV444) {
if (shift > 0) {
srcU += 8;
srcV += 8;
} else {
srcU += 4;
srcV += 4;
}
// Shift to 12 bit
if (shift > 4) {
xmm1 = _mm_srli_epi16(xmm0, shift-4);
xmm3 = _mm_srli_epi16(xmm2, shift-4);
} else if (shift < 4) {
xmm1 = _mm_slli_epi16(xmm0, 4-shift);
xmm3 = _mm_slli_epi16(xmm2, 4-shift);
}
}
// Load Y
if (shift > 0) {
// Load 4 Y values from line 0/1 into registers
PIXCONV_LOAD_4PIXEL16(xmm5, srcY);
PIXCONV_LOAD_4PIXEL16(xmm0, srcY+srcStrideY);
srcY += 8;
} else {
PIXCONV_LOAD_4PIXEL8(xmm5, srcY);
PIXCONV_LOAD_4PIXEL8(xmm0, srcY+srcStrideY);
srcY += 4;
xmm5 = _mm_unpacklo_epi8(xmm5, xmm7); /* YYYY0000 (16-bit fields) */
xmm0 = _mm_unpacklo_epi8(xmm0, xmm7); /* YYYY0000 (16-bit fields)*/
}
xmm0 = _mm_unpacklo_epi64(xmm0, xmm5); /* YYYYYYYY */
// After this step, xmm1 & xmm3 contain 4 UV pairs, each in a 16-bit value, filling 12-bit.
if (!ycgco) {
// YCbCr conversion
// Shift Y to 14 bits
if (shift < 6) {
xmm0 = _mm_slli_epi16(xmm0, 6-shift);
} else if (shift > 6) {
xmm0 = _mm_srli_epi16(xmm0, shift-6);
}
xmm0 = _mm_subs_epu16(xmm0, coeffs->Ysub); /* Y-16 (in case of range expansion) */
xmm0 = _mm_mulhi_epi16(xmm0, coeffs->cy); /* Y*cy (result is 28 bits, with 12 high-bits packed into the result) */
xmm0 = _mm_add_epi16(xmm0, coeffs->rgb_add); /* Y*cy + 16 (in case of range compression) */
xmm1 = _mm_subs_epi16(xmm1, coeffs->CbCr_center); /* move CbCr to proper range */
xmm3 = _mm_subs_epi16(xmm3, coeffs->CbCr_center);
xmm6 = xmm1;
xmm4 = xmm3;
xmm6 = _mm_madd_epi16(xmm6, coeffs->cR_Cr); /* Result is 25 bits (12 from chroma, 13 from coeff) */
xmm4 = _mm_madd_epi16(xmm4, coeffs->cR_Cr);
xmm6 = _mm_srai_epi32(xmm6, 13); /* Reduce to 12 bit */
xmm4 = _mm_srai_epi32(xmm4, 13);
xmm6 = _mm_packs_epi32(xmm6, xmm7); /* Pack back into 16 bit cells */
xmm4 = _mm_packs_epi32(xmm4, xmm7);
xmm6 = _mm_unpacklo_epi64(xmm4, xmm6); /* Interleave both parts */
xmm6 = _mm_add_epi16(xmm6, xmm0); /* R (12bit) */
xmm5 = xmm1;
xmm4 = xmm3;
xmm5 = _mm_madd_epi16(xmm5, coeffs->cG_Cb_cG_Cr); /* Result is 25 bits (12 from chroma, 13 from coeff) */
xmm4 = _mm_madd_epi16(xmm4, coeffs->cG_Cb_cG_Cr);
xmm5 = _mm_srai_epi32(xmm5, 13); /* Reduce to 12 bit */
xmm4 = _mm_srai_epi32(xmm4, 13);
xmm5 = _mm_packs_epi32(xmm5, xmm7); /* Pack back into 16 bit cells */
xmm4 = _mm_packs_epi32(xmm4, xmm7);
xmm5 = _mm_unpacklo_epi64(xmm4, xmm5); /* Interleave both parts */
xmm5 = _mm_add_epi16(xmm5, xmm0); /* G (12bit) */
xmm1 = _mm_madd_epi16(xmm1, coeffs->cB_Cb); /* Result is 25 bits (12 from chroma, 13 from coeff) */
xmm3 = _mm_madd_epi16(xmm3, coeffs->cB_Cb);
xmm1 = _mm_srai_epi32(xmm1, 13); /* Reduce to 12 bit */
xmm3 = _mm_srai_epi32(xmm3, 13);
xmm1 = _mm_packs_epi32(xmm1, xmm7); /* Pack back into 16 bit cells */
xmm3 = _mm_packs_epi32(xmm3, xmm7);
xmm1 = _mm_unpacklo_epi64(xmm3, xmm1); /* Interleave both parts */
xmm1 = _mm_add_epi16(xmm1, xmm0); /* B (12bit) */
} else {
// YCgCo conversion
// Shift Y to 12 bits
if (shift < 4) {
xmm0 = _mm_slli_epi16(xmm0, 4-shift);
} else if (shift > 4) {
xmm0 = _mm_srli_epi16(xmm0, shift-4);
}
xmm7 = _mm_set1_epi32(0x0000FFFF);
xmm2 = xmm1;
xmm4 = xmm3;
xmm1 = _mm_and_si128(xmm1, xmm7); /* null out the high-order bytes to get the Cg values */
xmm4 = _mm_and_si128(xmm4, xmm7);
xmm3 = _mm_srli_epi32(xmm3, 16); /* right shift the Co values */
xmm2 = _mm_srli_epi32(xmm2, 16);
xmm1 = _mm_packs_epi32(xmm4, xmm1); /* Pack Cg into xmm1 */
xmm3 = _mm_packs_epi32(xmm3, xmm2); /* Pack Co into xmm3 */
xmm2 = coeffs->CbCr_center; /* move CgCo to proper range */
xmm1 = _mm_subs_epi16(xmm1, xmm2);
xmm3 = _mm_subs_epi16(xmm3, xmm2);
xmm2 = xmm0;
xmm2 = _mm_subs_epi16(xmm2, xmm1); /* tmp = Y - Cg */
xmm6 = _mm_adds_epi16(xmm2, xmm3); /* R = tmp + Co */
xmm5 = _mm_adds_epi16(xmm0, xmm1); /* G = Y + Cg */
xmm1 = _mm_subs_epi16(xmm2, xmm3); /* B = tmp - Co */
}
// Dithering
if (dithertype == LAVDither_Random) {
/* Load random dithering coeffs from the dithers buffer */
int offset = (pos % (DITHER_STEPS * 4 * 2)) * 6;
xmm2 = _mm_load_si128((const __m128i *)(dithers + 0 + offset));
xmm3 = _mm_load_si128((const __m128i *)(dithers + 8 + offset));
xmm4 = _mm_load_si128((const __m128i *)(dithers + 16 + offset));
} else {
/* Load dithering coeffs and combine them for two lines */
const uint16_t *d1 = dither_8x8_256[line % 8];
xmm2 = _mm_load_si128((const __m128i *)d1);
const uint16_t *d2 = dither_8x8_256[(line+1) % 8];
xmm3 = _mm_load_si128((const __m128i *)d2);
xmm4 = xmm2;
xmm2 = _mm_unpacklo_epi64(xmm2, xmm3);
xmm4 = _mm_unpackhi_epi64(xmm4, xmm3);
xmm2 = _mm_srli_epi16(xmm2, 4);
xmm4 = _mm_srli_epi16(xmm4, 4);
xmm3 = xmm4;
}
xmm6 = _mm_adds_epu16(xmm6, xmm2); /* Apply coefficients to the RGB values */
xmm5 = _mm_adds_epu16(xmm5, xmm3);
xmm1 = _mm_adds_epu16(xmm1, xmm4);
xmm6 = _mm_srai_epi16(xmm6, 4); /* Shift to 8 bit */
xmm5 = _mm_srai_epi16(xmm5, 4);
xmm1 = _mm_srai_epi16(xmm1, 4);
xmm2 = _mm_cmpeq_epi8(xmm2, xmm2); /* 0xffffffff,0xffffffff,0xffffffff,0xffffffff */
xmm6 = _mm_packus_epi16(xmm6, xmm7); /* R (lower 8bytes,8bit) * 8 */
xmm5 = _mm_packus_epi16(xmm5, xmm7); /* G (lower 8bytes,8bit) * 8 */
xmm1 = _mm_packus_epi16(xmm1, xmm7); /* B (lower 8bytes,8bit) * 8 */
xmm6 = _mm_unpacklo_epi8(xmm6,xmm2); // 0xff,R
xmm1 = _mm_unpacklo_epi8(xmm1,xmm5); // G,B
xmm2 = xmm1;
xmm1 = _mm_unpackhi_epi16(xmm1, xmm6); // 0xff,RGB * 4 (line 0)
xmm2 = _mm_unpacklo_epi16(xmm2, xmm6); // 0xff,RGB * 4 (line 1)
// TODO: RGB limiting
if (outFmt == 1) {
_mm_stream_si128((__m128i *)(dst), xmm1);
_mm_stream_si128((__m128i *)(dst + dstStride), xmm2);
dst += 16;
} else {
// RGB 24 output is terribly inefficient due to the un-aligned size of 3 bytes per pixel
uint32_t eax;
DECLARE_ALIGNED(16, uint8_t, rgbbuf)[32];
*(uint32_t *)rgbbuf = _mm_cvtsi128_si32(xmm1);
xmm1 = _mm_srli_si128(xmm1, 4);
*(uint32_t *)(rgbbuf+3) = _mm_cvtsi128_si32 (xmm1);
xmm1 = _mm_srli_si128(xmm1, 4);
*(uint32_t *)(rgbbuf+6) = _mm_cvtsi128_si32 (xmm1);
xmm1 = _mm_srli_si128(xmm1, 4);
*(uint32_t *)(rgbbuf+9) = _mm_cvtsi128_si32 (xmm1);
*(uint32_t *)(rgbbuf+16) = _mm_cvtsi128_si32 (xmm2);
xmm2 = _mm_srli_si128(xmm2, 4);
*(uint32_t *)(rgbbuf+19) = _mm_cvtsi128_si32 (xmm2);
xmm2 = _mm_srli_si128(xmm2, 4);
*(uint32_t *)(rgbbuf+22) = _mm_cvtsi128_si32 (xmm2);
xmm2 = _mm_srli_si128(xmm2, 4);
*(uint32_t *)(rgbbuf+25) = _mm_cvtsi128_si32 (xmm2);
xmm1 = _mm_loadl_epi64((const __m128i *)(rgbbuf));
xmm2 = _mm_loadl_epi64((const __m128i *)(rgbbuf+16));
_mm_storel_epi64((__m128i *)(dst), xmm1);
eax = *(uint32_t *)(rgbbuf + 8);
*(uint32_t *)(dst + 8) = eax;
_mm_storel_epi64((__m128i *)(dst + dstStride), xmm2);
eax = *(uint32_t *)(rgbbuf + 24);
*(uint32_t *)(dst + dstStride + 8) = eax;
dst += 12;
}
return 0;
}
template <LAVPixelFormat inputFormat, int shift, int outFmt, int dithertype, int ycgco>
static int __stdcall yuv2rgb_convert(const uint8_t *srcY, const uint8_t *srcU, const uint8_t *srcV, uint8_t *dst, int width, int height, ptrdiff_t srcStrideY, ptrdiff_t srcStrideUV, ptrdiff_t dstStride, ptrdiff_t sliceYStart, ptrdiff_t sliceYEnd, const RGBCoeffs *coeffs, const uint16_t *dithers)
{
const uint8_t *y = srcY;
const uint8_t *u = srcU;
const uint8_t *v = srcV;
uint8_t *rgb = dst;
ptrdiff_t line = sliceYStart;
ptrdiff_t lastLine = sliceYEnd;
bool lastLineInOddHeight = false;
const ptrdiff_t endx = width - 4;
const uint16_t *lineDither = dithers;
_mm_sfence();
// 4:2:0 needs special handling for the first and the last line
if (inputFormat == LAVPixFmt_YUV420 || inputFormat == LAVPixFmt_NV12 || inputFormat == LAVPixFmt_P010) {
if (line == 0) {
for (ptrdiff_t i = 0; i < endx; i += 4) {
yuv2rgb_convert_pixels<inputFormat, shift, outFmt, 0, dithertype, ycgco>(y, u, v, rgb, 0, 0, 0, line, coeffs, lineDither, i);
}
yuv2rgb_convert_pixels<inputFormat, shift, outFmt, 1, dithertype, ycgco>(y, u, v, rgb, 0, 0, 0, line, coeffs, lineDither, 0);
line = 1;
}
if (lastLine == height)
lastLine--;
} else if (lastLine == height && (lastLine & 1)) {
lastLine--;
lastLineInOddHeight = true;
}
for (; line < lastLine; line += 2) {
if (dithertype == LAVDither_Random)
lineDither = dithers + (line * 24 * DITHER_STEPS);
y = srcY + line * srcStrideY;
if (inputFormat == LAVPixFmt_YUV420 || inputFormat == LAVPixFmt_NV12 || inputFormat == LAVPixFmt_P010) {
u = srcU + (line >> 1) * srcStrideUV;
v = srcV + (line >> 1) * srcStrideUV;
} else {
u = srcU + line * srcStrideUV;
v = srcV + line * srcStrideUV;
}
rgb = dst + line * dstStride;
for (ptrdiff_t i = 0; i < endx; i += 4) {
yuv2rgb_convert_pixels<inputFormat, shift, outFmt, 0, dithertype, ycgco>(y, u, v, rgb, srcStrideY, srcStrideUV, dstStride, line, coeffs, lineDither, i);
}
yuv2rgb_convert_pixels<inputFormat, shift, outFmt, 1, dithertype, ycgco>(y, u, v, rgb, srcStrideY, srcStrideUV, dstStride, line, coeffs, lineDither, 0);
}
if (inputFormat == LAVPixFmt_YUV420 || inputFormat == LAVPixFmt_NV12 || inputFormat == LAVPixFmt_P010 || lastLineInOddHeight) {
if (sliceYEnd == height) {
if (dithertype == LAVDither_Random)
lineDither = dithers + ((height - 2) * 24 * DITHER_STEPS);
y = srcY + (height - 1) * srcStrideY;
if (inputFormat == LAVPixFmt_YUV420 || inputFormat == LAVPixFmt_NV12 || inputFormat == LAVPixFmt_P010) {
u = srcU + ((height >> 1) - 1) * srcStrideUV;
v = srcV + ((height >> 1) - 1) * srcStrideUV;
} else {
u = srcU + (height - 1) * srcStrideUV;
v = srcV + (height - 1) * srcStrideUV;
}
rgb = dst + (height - 1) * dstStride;
for (ptrdiff_t i = 0; i < endx; i += 4) {
yuv2rgb_convert_pixels<inputFormat, shift, outFmt, 0, dithertype, ycgco>(y, u, v, rgb, 0, 0, 0, line, coeffs, lineDither, i);
}
yuv2rgb_convert_pixels<inputFormat, shift, outFmt, 1, dithertype, ycgco>(y, u, v, rgb, 0, 0, 0, line, coeffs, lineDither, 0);
}
}
return 0;
}
DECLARE_CONV_FUNC_IMPL(convert_yuv_rgb)
{
const RGBCoeffs *coeffs = getRGBCoeffs(width, height);
if (!m_bRGBConvInit) {
m_bRGBConvInit = TRUE;
InitRGBConvDispatcher();
}
BOOL bYCgCo = (m_ColorProps.VideoTransferMatrix == 7);
int shift = max(bpp - 8, 0);
ASSERT(shift >= 0 && shift <= 8);
int outFmt = -1;
switch (outputFormat) {
case LAVOutPixFmt_RGB24:
outFmt = 0;
break;
case LAVOutPixFmt_RGB32:
outFmt = 1;
break;
default:
ASSERT(0);
}
LAVDitherMode ditherMode = m_pSettings->GetDitherMode();
const uint16_t *dithers = (ditherMode == LAVDither_Random) ? GetRandomDitherCoeffs(height, DITHER_STEPS * 3, 4, 0) : nullptr;
if (ditherMode == LAVDither_Random && dithers == nullptr) {
ditherMode = LAVDither_Ordered;
}
// Map the bX formats to their normal counter part, the shift parameter controls this now
if (inputFormat == LAVPixFmt_YUV420bX || inputFormat == LAVPixFmt_YUV422bX || inputFormat == LAVPixFmt_YUV444bX)
inputFormat = (LAVPixelFormat)(inputFormat - 1);
// P010 has the data in the high bits, so set shift appropriately
if (inputFormat == LAVPixFmt_P010)
shift = 8;
YUVRGBConversionFunc convFn = m_RGBConvFuncs[outFmt][ditherMode][bYCgCo][inputFormat][shift];
if (convFn == nullptr) {
ASSERT(0);
return E_FAIL;
}
// run conversion, threaded
if (m_NumThreads <= 1) {
convFn(src[0], src[1], src[2], dst[0], width, height, srcStride[0], srcStride[1], dstStride[0], 0, height, coeffs, dithers);
} else {
const int is_odd = (inputFormat == LAVPixFmt_YUV420 || inputFormat == LAVPixFmt_NV12 || inputFormat == LAVPixFmt_P010);
const ptrdiff_t lines_per_thread = (height / m_NumThreads)&~1;
Concurrency::parallel_for(0, m_NumThreads, [&](int i) {
const ptrdiff_t starty = (i * lines_per_thread);
const ptrdiff_t endy = (i == (m_NumThreads - 1)) ? height : starty + lines_per_thread + is_odd;
convFn(src[0], src[1], src[2], dst[0], width, height, srcStride[0], srcStride[1], dstStride[0], starty + (i ? is_odd : 0), endy, coeffs, dithers);
});
}
return S_OK;
}
#define CONV_FUNC_INT2(out32, dither, ycgco, format, shift) \
m_RGBConvFuncs[out32][dither][ycgco][format][shift] = yuv2rgb_convert<format, shift, out32, dither, ycgco>;
#define CONV_FUNC_INT(dither, ycgco, format, shift) \
CONV_FUNC_INT2(0, dither, ycgco, format, shift) \
CONV_FUNC_INT2(1, dither, ycgco, format, shift) \
#define CONV_FUNC(format, shift) \
CONV_FUNC_INT(LAVDither_Ordered, 0, format, shift) \
CONV_FUNC_INT(LAVDither_Random, 0, format, shift) \
CONV_FUNC_INT(LAVDither_Ordered, 1, format, shift) \
CONV_FUNC_INT(LAVDither_Random, 1, format, shift) \
#define CONV_FUNCX(format) \
CONV_FUNC(format, 0) \
CONV_FUNC(format, 1) \
CONV_FUNC(format, 2) \
/* CONV_FUNC(format, 3) */ \
CONV_FUNC(format, 4) \
/* CONV_FUNC(format, 5) */ \
CONV_FUNC(format, 6) \
/* CONV_FUNC(format, 7) */ \
CONV_FUNC(format, 8)
void CLAVPixFmtConverter::InitRGBConvDispatcher()
{
ZeroMemory(&m_RGBConvFuncs, sizeof(m_RGBConvFuncs));
CONV_FUNC(LAVPixFmt_NV12, 0);
CONV_FUNC(LAVPixFmt_P010, 8);
CONV_FUNCX(LAVPixFmt_YUV420);
CONV_FUNCX(LAVPixFmt_YUV422);
CONV_FUNCX(LAVPixFmt_YUV444);
}
const RGBCoeffs* CLAVPixFmtConverter::getRGBCoeffs(int width, int height)
{
if (!m_rgbCoeffs || width != swsWidth || height != swsHeight) {
swsWidth = width;
swsHeight = height;
if (!m_rgbCoeffs)
m_rgbCoeffs = (RGBCoeffs *)_aligned_malloc(sizeof(RGBCoeffs), 16);
DXVA2_VideoTransferMatrix matrix = (DXVA2_VideoTransferMatrix)m_ColorProps.VideoTransferMatrix;
if (matrix == DXVA2_VideoTransferMatrix_Unknown) {
matrix = (swsHeight > 576 || swsWidth > 1024) ? DXVA2_VideoTransferMatrix_BT709 : DXVA2_VideoTransferMatrix_BT601;
}
BOOL inFullRange = (m_ColorProps.NominalRange == DXVA2_NominalRange_0_255);
BOOL outFullRange = (swsOutputRange == 0) ? inFullRange : (swsOutputRange == 2);
int inputWhite, inputBlack, inputChroma, outputWhite, outputBlack;
if (inFullRange) {
inputWhite = 255;
inputBlack = 0;
inputChroma = 1;
} else {
inputWhite = 235;
inputBlack = 16;
inputChroma = 16;
}
if (outFullRange) {
outputWhite = 255;
outputBlack = 0;
} else {
outputWhite = 235;
outputBlack = 16;
}
double Kr, Kg, Kb;
switch (matrix) {
case DXVA2_VideoTransferMatrix_BT601:
Kr = 0.299;
Kg = 0.587;
Kb = 0.114;
break;
case DXVA2_VideoTransferMatrix_SMPTE240M:
Kr = 0.2120;
Kg = 0.7010;
Kb = 0.0870;
break;
case 6: // FCC
Kr = 0.300;
Kg = 0.590;
Kb = 0.110;
break;
case 4: // BT.2020
Kr = 0.2627;
Kg = 0.6780;
Kb = 0.0593;
break;
default:
DbgLog((LOG_TRACE, 10, L"::getRGBCoeffs(): Unknown color space: %d - defaulting to BT709", matrix));
case DXVA2_VideoTransferMatrix_BT709:
Kr = 0.2126;
Kg = 0.7152;
Kb = 0.0722;
break;
}
double in_y_range = inputWhite - inputBlack;
double chr_range = 128 - inputChroma;
double cspOptionsRGBrange = outputWhite - outputBlack;
double y_mul, vr_mul, ug_mul, vg_mul, ub_mul;
y_mul = cspOptionsRGBrange / in_y_range;
vr_mul = (cspOptionsRGBrange / chr_range) * (1.0 - Kr);
ug_mul = (cspOptionsRGBrange / chr_range) * (1.0 - Kb) * Kb / Kg;
vg_mul = (cspOptionsRGBrange / chr_range) * (1.0 - Kr) * Kr / Kg;
ub_mul = (cspOptionsRGBrange / chr_range) * (1.0 - Kb);
short sub = min(outputBlack, inputBlack);
short Ysub = inputBlack - sub;
short RGB_add1 = outputBlack - sub;
short cy = short(y_mul * 16384 + 0.5);
short crv = short(vr_mul * 8192 + 0.5);
short cgu = short(-ug_mul * 8192 - 0.5);
short cgv = short(-vg_mul * 8192 - 0.5);
short cbu = short(ub_mul * 8192 + 0.5);
m_rgbCoeffs->Ysub = _mm_set1_epi16(Ysub << 6);
m_rgbCoeffs->cy = _mm_set1_epi16(cy);
m_rgbCoeffs->CbCr_center = _mm_set1_epi16(128 << 4);
m_rgbCoeffs->cR_Cr = _mm_set1_epi32(crv << 16); // R
m_rgbCoeffs->cG_Cb_cG_Cr = _mm_set1_epi32((cgv << 16) + cgu); // G
m_rgbCoeffs->cB_Cb = _mm_set1_epi32(cbu); // B
m_rgbCoeffs->rgb_add = _mm_set1_epi16(RGB_add1 << 4);
// YCgCo
if (matrix == 7) {
m_rgbCoeffs->CbCr_center = _mm_set1_epi16(0x0800);
// Other Coeffs are not used in YCgCo
}
}
return m_rgbCoeffs;
}
#pragma warning(pop)
|