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/*
* Copyright (C) 2010-2017 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 "pixconv_internal.h"
#include "pixconv_sse2_templates.h"
DECLARE_CONV_FUNC_IMPL(convert_rgb48_rgb32_ssse3)
{
const uint16_t *rgb = (const uint16_t *)src[0];
const ptrdiff_t inStride = srcStride[0] >> 1;
const ptrdiff_t outStride = dstStride[0];
ptrdiff_t line, i;
int processWidth = width * 3;
LAVDitherMode ditherMode = m_pSettings->GetDitherMode();
const uint16_t *dithers = GetRandomDitherCoeffs(height, 4, 8, 0);
if (dithers == nullptr)
ditherMode = LAVDither_Ordered;
__m128i xmm0,xmm1,xmm2,xmm3,xmm4,xmm5,xmm6,xmm7;
__m128i mask = _mm_setr_epi8(4,5,2,3,0,1,-1,-1,10,11,8,9,6,7,-1,-1);
_mm_sfence();
for (line = 0; line < height; line++) {
__m128i *dst128 = (__m128i *)(dst[0] + line * outStride);
// Load dithering coefficients for this line
if (ditherMode == LAVDither_Random) {
xmm5 = _mm_load_si128((const __m128i *)(dithers + (line << 5) + 0));
xmm6 = _mm_load_si128((const __m128i *)(dithers + (line << 5) + 8));
xmm7 = _mm_load_si128((const __m128i *)(dithers + (line << 5) + 16));
} else {
PIXCONV_LOAD_DITHER_COEFFS(xmm7,line,8,dithers);
xmm5 = xmm6 = xmm7;
}
for (i = 0; i < processWidth; i += 24) {
PIXCONV_LOAD_ALIGNED(xmm0, (rgb + i)); /* load */
PIXCONV_LOAD_ALIGNED(xmm1, (rgb + i + 8));
PIXCONV_LOAD_ALIGNED(xmm2, (rgb + i + 16));
xmm0 = _mm_adds_epu16(xmm0, xmm5); /* apply dithering coefficients */
xmm1 = _mm_adds_epu16(xmm1, xmm6);
xmm2 = _mm_adds_epu16(xmm2, xmm7);
xmm0 = _mm_srli_epi16(xmm0, 8); /* shift to 8-bit */
xmm1 = _mm_srli_epi16(xmm1, 8);
xmm2 = _mm_srli_epi16(xmm2, 8);
xmm3 = _mm_shuffle_epi8(xmm0, mask);
xmm4 = _mm_shuffle_epi8(_mm_alignr_epi8(xmm1, xmm0, 12), mask);
xmm0 = _mm_shuffle_epi8(_mm_alignr_epi8(xmm2, xmm1, 8), mask);
xmm1 = _mm_shuffle_epi8(_mm_alignr_epi8(xmm2, xmm2, 4), mask);
xmm3 = _mm_packus_epi16(xmm3, xmm4);
xmm0 = _mm_packus_epi16(xmm0, xmm1);
_mm_stream_si128(dst128++, xmm3);
_mm_stream_si128(dst128++, xmm0);
}
rgb += inStride;
}
return S_OK;
}
template <int out32>
DECLARE_CONV_FUNC_IMPL(convert_rgb48_rgb)
{
// Byte Swap to BGR layout
uint8_t *dstBS[4] = {nullptr};
dstBS[0] = (BYTE *)av_malloc(height * srcStride[0]);
if (dstBS[0] == nullptr)
return E_OUTOFMEMORY;
SwsContext *ctx = GetSWSContext(width, height, GetFFInput(), AV_PIX_FMT_BGR48LE, SWS_POINT);
sws_scale2(ctx, src, srcStride, 0, height, dstBS, srcStride);
// Dither to RGB24/32 with SSE2
const uint16_t *rgb = (const uint16_t *)dstBS[0];
const ptrdiff_t inStride = srcStride[0] >> 1;
const ptrdiff_t outStride = dstStride[0];
ptrdiff_t line, i;
int processWidth = width * 3;
LAVDitherMode ditherMode = m_pSettings->GetDitherMode();
const uint16_t *dithers = GetRandomDitherCoeffs(height, 2, 8, 0);
if (dithers == nullptr)
ditherMode = LAVDither_Ordered;
__m128i xmm0,xmm1,xmm6,xmm7;
uint8_t *rgb24buffer = nullptr;
if (out32) {
rgb24buffer = (uint8_t *)av_malloc(outStride + FF_INPUT_BUFFER_PADDING_SIZE);
if (rgb24buffer == nullptr) {
av_freep(&dstBS[0]);
return E_OUTOFMEMORY;
}
}
_mm_sfence();
for (line = 0; line < height; line++) {
__m128i *dst128 = nullptr;
if (out32) {
dst128 = (__m128i *)rgb24buffer;
} else {
dst128 = (__m128i *)(dst[0] + line * outStride);
}
// Load dithering coefficients for this line
if (ditherMode == LAVDither_Random) {
xmm6 = _mm_load_si128((const __m128i *)(dithers + (line << 4) + 0));
xmm7 = _mm_load_si128((const __m128i *)(dithers + (line << 4) + 8));
} else {
PIXCONV_LOAD_DITHER_COEFFS(xmm7,line,8,dithers);
xmm6 = xmm7;
}
for (i = 0; i < processWidth; i += 16) {
PIXCONV_LOAD_ALIGNED(xmm0, (rgb + i)); /* load */
PIXCONV_LOAD_ALIGNED(xmm1, (rgb + i + 8));
xmm0 = _mm_adds_epu16(xmm0, xmm6); /* apply dithering coefficients */
xmm1 = _mm_adds_epu16(xmm1, xmm7);
xmm0 = _mm_srli_epi16(xmm0, 8); /* shift to 8-bit */
xmm1 = _mm_srli_epi16(xmm1, 8);
xmm0 = _mm_packus_epi16(xmm0, xmm1);
_mm_stream_si128(dst128++, xmm0);
}
rgb += inStride;
if (out32) {
uint32_t *src24 = (uint32_t *)rgb24buffer;
uint32_t *dst32 = (uint32_t *)(dst[0] + line * outStride);
for (i = 0; i < width; i += 4) {
uint32_t sa = src24[0];
uint32_t sb = src24[1];
uint32_t sc = src24[2];
dst32[i+0] = sa;
dst32[i+1] = (sa>>24) | (sb<<8);
dst32[i+2] = (sb>>16) | (sc<<16);
dst32[i+3] = sc>>8;
src24 += 3;
}
}
}
if (out32)
av_freep(&rgb24buffer);
av_freep(&dstBS[0]);
return S_OK;
}
template HRESULT CLAVPixFmtConverter::convert_rgb48_rgb<0>CONV_FUNC_PARAMS;
template HRESULT CLAVPixFmtConverter::convert_rgb48_rgb<1>CONV_FUNC_PARAMS;
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