c0b87359b2
This allows removing any gray16-specific code, which is essentially identical to the per-plane code in yuv2plane*().
697 lines
28 KiB
C
697 lines
28 KiB
C
/*
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* Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
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*
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* This file is part of Libav.
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*
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* Libav is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* Libav 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with Libav; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <inttypes.h>
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#include <string.h>
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#include <math.h>
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#include <stdio.h>
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#include "config.h"
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#include <assert.h>
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#include "swscale.h"
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#include "swscale_internal.h"
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#include "rgb2rgb.h"
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#include "libavutil/intreadwrite.h"
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#include "libavutil/cpu.h"
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#include "libavutil/avutil.h"
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#include "libavutil/mathematics.h"
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#include "libavutil/bswap.h"
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#include "libavutil/pixdesc.h"
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DECLARE_ALIGNED(8, const uint8_t, dither_8x8_128)[8][8] = {
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{ 36, 68, 60, 92, 34, 66, 58, 90,},
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{ 100, 4,124, 28, 98, 2,122, 26,},
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{ 52, 84, 44, 76, 50, 82, 42, 74,},
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{ 116, 20,108, 12,114, 18,106, 10,},
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{ 32, 64, 56, 88, 38, 70, 62, 94,},
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{ 96, 0,120, 24,102, 6,126, 30,},
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{ 48, 80, 40, 72, 54, 86, 46, 78,},
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{ 112, 16,104, 8,118, 22,110, 14,},
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};
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DECLARE_ALIGNED(8, const uint8_t, ff_sws_pb_64)[8] =
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{ 64, 64, 64, 64, 64, 64, 64, 64 };
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static av_always_inline void fillPlane(uint8_t* plane, int stride,
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int width, int height,
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int y, uint8_t val)
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{
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int i;
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uint8_t *ptr = plane + stride*y;
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for (i=0; i<height; i++) {
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memset(ptr, val, width);
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ptr += stride;
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}
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}
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static void hScale16To19_c(SwsContext *c, int16_t *_dst, int dstW, const uint8_t *_src,
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const int16_t *filter,
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const int16_t *filterPos, int filterSize)
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{
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int i;
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int32_t *dst = (int32_t *) _dst;
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const uint16_t *src = (const uint16_t *) _src;
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int bits = av_pix_fmt_descriptors[c->srcFormat].comp[0].depth_minus1;
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int sh = bits - 4;
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for (i = 0; i < dstW; i++) {
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int j;
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int srcPos = filterPos[i];
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int val = 0;
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for (j = 0; j < filterSize; j++) {
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val += src[srcPos + j] * filter[filterSize * i + j];
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}
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// filter=14 bit, input=16 bit, output=30 bit, >> 11 makes 19 bit
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dst[i] = FFMIN(val >> sh, (1 << 19) - 1);
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}
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}
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static void hScale16To15_c(SwsContext *c, int16_t *dst, int dstW, const uint8_t *_src,
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const int16_t *filter,
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const int16_t *filterPos, int filterSize)
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{
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int i;
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const uint16_t *src = (const uint16_t *) _src;
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int sh = av_pix_fmt_descriptors[c->srcFormat].comp[0].depth_minus1;
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for (i = 0; i < dstW; i++) {
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int j;
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int srcPos = filterPos[i];
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int val = 0;
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for (j = 0; j < filterSize; j++) {
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val += src[srcPos + j] * filter[filterSize * i + j];
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}
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// filter=14 bit, input=16 bit, output=30 bit, >> 15 makes 15 bit
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dst[i] = FFMIN(val >> sh, (1 << 15) - 1);
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}
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}
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// bilinear / bicubic scaling
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static void hScale8To15_c(SwsContext *c, int16_t *dst, int dstW, const uint8_t *src,
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const int16_t *filter, const int16_t *filterPos,
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int filterSize)
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{
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int i;
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for (i=0; i<dstW; i++) {
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int j;
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int srcPos= filterPos[i];
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int val=0;
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for (j=0; j<filterSize; j++) {
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val += ((int)src[srcPos + j])*filter[filterSize*i + j];
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}
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//filter += hFilterSize;
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dst[i] = FFMIN(val>>7, (1<<15)-1); // the cubic equation does overflow ...
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//dst[i] = val>>7;
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}
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}
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static void hScale8To19_c(SwsContext *c, int16_t *_dst, int dstW, const uint8_t *src,
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const int16_t *filter, const int16_t *filterPos,
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int filterSize)
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{
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int i;
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int32_t *dst = (int32_t *) _dst;
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for (i=0; i<dstW; i++) {
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int j;
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int srcPos= filterPos[i];
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int val=0;
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for (j=0; j<filterSize; j++) {
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val += ((int)src[srcPos + j])*filter[filterSize*i + j];
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}
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//filter += hFilterSize;
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dst[i] = FFMIN(val>>3, (1<<19)-1); // the cubic equation does overflow ...
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//dst[i] = val>>7;
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}
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}
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//FIXME all pal and rgb srcFormats could do this convertion as well
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//FIXME all scalers more complex than bilinear could do half of this transform
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static void chrRangeToJpeg_c(int16_t *dstU, int16_t *dstV, int width)
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{
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int i;
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for (i = 0; i < width; i++) {
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dstU[i] = (FFMIN(dstU[i],30775)*4663 - 9289992)>>12; //-264
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dstV[i] = (FFMIN(dstV[i],30775)*4663 - 9289992)>>12; //-264
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}
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}
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static void chrRangeFromJpeg_c(int16_t *dstU, int16_t *dstV, int width)
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{
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int i;
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for (i = 0; i < width; i++) {
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dstU[i] = (dstU[i]*1799 + 4081085)>>11; //1469
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dstV[i] = (dstV[i]*1799 + 4081085)>>11; //1469
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}
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}
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static void lumRangeToJpeg_c(int16_t *dst, int width)
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{
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int i;
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for (i = 0; i < width; i++)
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dst[i] = (FFMIN(dst[i],30189)*19077 - 39057361)>>14;
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}
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static void lumRangeFromJpeg_c(int16_t *dst, int width)
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{
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int i;
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for (i = 0; i < width; i++)
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dst[i] = (dst[i]*14071 + 33561947)>>14;
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}
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static void chrRangeToJpeg16_c(int16_t *_dstU, int16_t *_dstV, int width)
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{
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int i;
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int32_t *dstU = (int32_t *) _dstU;
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int32_t *dstV = (int32_t *) _dstV;
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for (i = 0; i < width; i++) {
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dstU[i] = (FFMIN(dstU[i],30775<<4)*4663 - (9289992<<4))>>12; //-264
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dstV[i] = (FFMIN(dstV[i],30775<<4)*4663 - (9289992<<4))>>12; //-264
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}
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}
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static void chrRangeFromJpeg16_c(int16_t *_dstU, int16_t *_dstV, int width)
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{
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int i;
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int32_t *dstU = (int32_t *) _dstU;
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int32_t *dstV = (int32_t *) _dstV;
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for (i = 0; i < width; i++) {
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dstU[i] = (dstU[i]*1799 + (4081085<<4))>>11; //1469
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dstV[i] = (dstV[i]*1799 + (4081085<<4))>>11; //1469
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}
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}
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static void lumRangeToJpeg16_c(int16_t *_dst, int width)
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{
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int i;
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int32_t *dst = (int32_t *) _dst;
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for (i = 0; i < width; i++)
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dst[i] = (FFMIN(dst[i],30189<<4)*4769 - (39057361<<2))>>12;
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}
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static void lumRangeFromJpeg16_c(int16_t *_dst, int width)
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{
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int i;
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int32_t *dst = (int32_t *) _dst;
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for (i = 0; i < width; i++)
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dst[i] = (dst[i]*14071 + (33561947<<4))>>14;
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}
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static void hyscale_fast_c(SwsContext *c, int16_t *dst, int dstWidth,
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const uint8_t *src, int srcW, int xInc)
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{
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int i;
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unsigned int xpos=0;
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for (i=0;i<dstWidth;i++) {
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register unsigned int xx=xpos>>16;
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register unsigned int xalpha=(xpos&0xFFFF)>>9;
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dst[i]= (src[xx]<<7) + (src[xx+1] - src[xx])*xalpha;
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xpos+=xInc;
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}
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}
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// *** horizontal scale Y line to temp buffer
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static av_always_inline void hyscale(SwsContext *c, int16_t *dst, int dstWidth,
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const uint8_t *src_in[4], int srcW, int xInc,
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const int16_t *hLumFilter,
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const int16_t *hLumFilterPos, int hLumFilterSize,
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uint8_t *formatConvBuffer,
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uint32_t *pal, int isAlpha)
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{
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void (*toYV12)(uint8_t *, const uint8_t *, int, uint32_t *) = isAlpha ? c->alpToYV12 : c->lumToYV12;
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void (*convertRange)(int16_t *, int) = isAlpha ? NULL : c->lumConvertRange;
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const uint8_t *src = src_in[isAlpha ? 3 : 0];
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if (toYV12) {
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toYV12(formatConvBuffer, src, srcW, pal);
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src= formatConvBuffer;
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} else if (c->readLumPlanar && !isAlpha) {
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c->readLumPlanar(formatConvBuffer, src_in, srcW);
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src = formatConvBuffer;
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}
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if (!c->hyscale_fast) {
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c->hyScale(c, dst, dstWidth, src, hLumFilter, hLumFilterPos, hLumFilterSize);
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} else { // fast bilinear upscale / crap downscale
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c->hyscale_fast(c, dst, dstWidth, src, srcW, xInc);
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}
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if (convertRange)
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convertRange(dst, dstWidth);
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}
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static void hcscale_fast_c(SwsContext *c, int16_t *dst1, int16_t *dst2,
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int dstWidth, const uint8_t *src1,
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const uint8_t *src2, int srcW, int xInc)
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{
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int i;
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unsigned int xpos=0;
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for (i=0;i<dstWidth;i++) {
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register unsigned int xx=xpos>>16;
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register unsigned int xalpha=(xpos&0xFFFF)>>9;
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dst1[i]=(src1[xx]*(xalpha^127)+src1[xx+1]*xalpha);
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dst2[i]=(src2[xx]*(xalpha^127)+src2[xx+1]*xalpha);
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xpos+=xInc;
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}
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}
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static av_always_inline void hcscale(SwsContext *c, int16_t *dst1, int16_t *dst2, int dstWidth,
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const uint8_t *src_in[4],
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int srcW, int xInc, const int16_t *hChrFilter,
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const int16_t *hChrFilterPos, int hChrFilterSize,
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uint8_t *formatConvBuffer, uint32_t *pal)
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{
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const uint8_t *src1 = src_in[1], *src2 = src_in[2];
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if (c->chrToYV12) {
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uint8_t *buf2 = formatConvBuffer + FFALIGN(srcW * FFALIGN(c->srcBpc, 8) >> 3, 16);
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c->chrToYV12(formatConvBuffer, buf2, src1, src2, srcW, pal);
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src1= formatConvBuffer;
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src2= buf2;
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} else if (c->readChrPlanar) {
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uint8_t *buf2 = formatConvBuffer + FFALIGN(srcW * FFALIGN(c->srcBpc, 8) >> 3, 16);
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c->readChrPlanar(formatConvBuffer, buf2, src_in, srcW);
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src1= formatConvBuffer;
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src2= buf2;
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}
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if (!c->hcscale_fast) {
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c->hcScale(c, dst1, dstWidth, src1, hChrFilter, hChrFilterPos, hChrFilterSize);
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c->hcScale(c, dst2, dstWidth, src2, hChrFilter, hChrFilterPos, hChrFilterSize);
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} else { // fast bilinear upscale / crap downscale
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c->hcscale_fast(c, dst1, dst2, dstWidth, src1, src2, srcW, xInc);
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}
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if (c->chrConvertRange)
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c->chrConvertRange(dst1, dst2, dstWidth);
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}
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#define DEBUG_SWSCALE_BUFFERS 0
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#define DEBUG_BUFFERS(...) if (DEBUG_SWSCALE_BUFFERS) av_log(c, AV_LOG_DEBUG, __VA_ARGS__)
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static int swScale(SwsContext *c, const uint8_t* src[],
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int srcStride[], int srcSliceY,
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int srcSliceH, uint8_t* dst[], int dstStride[])
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{
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/* load a few things into local vars to make the code more readable? and faster */
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const int srcW= c->srcW;
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const int dstW= c->dstW;
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const int dstH= c->dstH;
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const int chrDstW= c->chrDstW;
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const int chrSrcW= c->chrSrcW;
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const int lumXInc= c->lumXInc;
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const int chrXInc= c->chrXInc;
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const enum PixelFormat dstFormat= c->dstFormat;
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const int flags= c->flags;
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int16_t *vLumFilterPos= c->vLumFilterPos;
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int16_t *vChrFilterPos= c->vChrFilterPos;
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int16_t *hLumFilterPos= c->hLumFilterPos;
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int16_t *hChrFilterPos= c->hChrFilterPos;
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int16_t *vLumFilter= c->vLumFilter;
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int16_t *vChrFilter= c->vChrFilter;
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int16_t *hLumFilter= c->hLumFilter;
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int16_t *hChrFilter= c->hChrFilter;
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int32_t *lumMmxFilter= c->lumMmxFilter;
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int32_t *chrMmxFilter= c->chrMmxFilter;
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int32_t av_unused *alpMmxFilter= c->alpMmxFilter;
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const int vLumFilterSize= c->vLumFilterSize;
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const int vChrFilterSize= c->vChrFilterSize;
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const int hLumFilterSize= c->hLumFilterSize;
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const int hChrFilterSize= c->hChrFilterSize;
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int16_t **lumPixBuf= c->lumPixBuf;
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int16_t **chrUPixBuf= c->chrUPixBuf;
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int16_t **chrVPixBuf= c->chrVPixBuf;
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int16_t **alpPixBuf= c->alpPixBuf;
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const int vLumBufSize= c->vLumBufSize;
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const int vChrBufSize= c->vChrBufSize;
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uint8_t *formatConvBuffer= c->formatConvBuffer;
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const int chrSrcSliceY= srcSliceY >> c->chrSrcVSubSample;
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const int chrSrcSliceH= -((-srcSliceH) >> c->chrSrcVSubSample);
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int lastDstY;
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uint32_t *pal=c->pal_yuv;
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yuv2planar1_fn yuv2plane1 = c->yuv2plane1;
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yuv2planarX_fn yuv2planeX = c->yuv2planeX;
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yuv2interleavedX_fn yuv2nv12cX = c->yuv2nv12cX;
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yuv2packed1_fn yuv2packed1 = c->yuv2packed1;
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yuv2packed2_fn yuv2packed2 = c->yuv2packed2;
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yuv2packedX_fn yuv2packedX = c->yuv2packedX;
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int should_dither = is9_OR_10BPS(c->srcFormat) || is16BPS(c->srcFormat);
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/* vars which will change and which we need to store back in the context */
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int dstY= c->dstY;
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int lumBufIndex= c->lumBufIndex;
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int chrBufIndex= c->chrBufIndex;
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int lastInLumBuf= c->lastInLumBuf;
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int lastInChrBuf= c->lastInChrBuf;
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if (isPacked(c->srcFormat)) {
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src[0]=
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src[1]=
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src[2]=
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src[3]= src[0];
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srcStride[0]=
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srcStride[1]=
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srcStride[2]=
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srcStride[3]= srcStride[0];
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}
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srcStride[1]<<= c->vChrDrop;
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srcStride[2]<<= c->vChrDrop;
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DEBUG_BUFFERS("swScale() %p[%d] %p[%d] %p[%d] %p[%d] -> %p[%d] %p[%d] %p[%d] %p[%d]\n",
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src[0], srcStride[0], src[1], srcStride[1], src[2], srcStride[2], src[3], srcStride[3],
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dst[0], dstStride[0], dst[1], dstStride[1], dst[2], dstStride[2], dst[3], dstStride[3]);
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DEBUG_BUFFERS("srcSliceY: %d srcSliceH: %d dstY: %d dstH: %d\n",
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srcSliceY, srcSliceH, dstY, dstH);
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DEBUG_BUFFERS("vLumFilterSize: %d vLumBufSize: %d vChrFilterSize: %d vChrBufSize: %d\n",
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vLumFilterSize, vLumBufSize, vChrFilterSize, vChrBufSize);
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if (dstStride[0]%8 !=0 || dstStride[1]%8 !=0 || dstStride[2]%8 !=0 || dstStride[3]%8 != 0) {
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static int warnedAlready=0; //FIXME move this into the context perhaps
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if (flags & SWS_PRINT_INFO && !warnedAlready) {
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av_log(c, AV_LOG_WARNING, "Warning: dstStride is not aligned!\n"
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" ->cannot do aligned memory accesses anymore\n");
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warnedAlready=1;
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}
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}
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/* Note the user might start scaling the picture in the middle so this
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will not get executed. This is not really intended but works
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currently, so people might do it. */
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if (srcSliceY ==0) {
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lumBufIndex=-1;
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chrBufIndex=-1;
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dstY=0;
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lastInLumBuf= -1;
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lastInChrBuf= -1;
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}
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if (!should_dither) {
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c->chrDither8 = c->lumDither8 = ff_sws_pb_64;
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}
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lastDstY= dstY;
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for (;dstY < dstH; dstY++) {
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const int chrDstY= dstY>>c->chrDstVSubSample;
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uint8_t *dest[4] = {
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dst[0] + dstStride[0] * dstY,
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dst[1] + dstStride[1] * chrDstY,
|
|
dst[2] + dstStride[2] * chrDstY,
|
|
(CONFIG_SWSCALE_ALPHA && alpPixBuf) ? dst[3] + dstStride[3] * dstY : NULL,
|
|
};
|
|
|
|
const int firstLumSrcY= vLumFilterPos[dstY]; //First line needed as input
|
|
const int firstLumSrcY2= vLumFilterPos[FFMIN(dstY | ((1<<c->chrDstVSubSample) - 1), dstH-1)];
|
|
const int firstChrSrcY= vChrFilterPos[chrDstY]; //First line needed as input
|
|
|
|
// Last line needed as input
|
|
int lastLumSrcY = FFMIN(c->srcH, firstLumSrcY + vLumFilterSize) - 1;
|
|
int lastLumSrcY2 = FFMIN(c->srcH, firstLumSrcY2 + vLumFilterSize) - 1;
|
|
int lastChrSrcY = FFMIN(c->chrSrcH, firstChrSrcY + vChrFilterSize) - 1;
|
|
int enough_lines;
|
|
|
|
//handle holes (FAST_BILINEAR & weird filters)
|
|
if (firstLumSrcY > lastInLumBuf) lastInLumBuf= firstLumSrcY-1;
|
|
if (firstChrSrcY > lastInChrBuf) lastInChrBuf= firstChrSrcY-1;
|
|
assert(firstLumSrcY >= lastInLumBuf - vLumBufSize + 1);
|
|
assert(firstChrSrcY >= lastInChrBuf - vChrBufSize + 1);
|
|
|
|
DEBUG_BUFFERS("dstY: %d\n", dstY);
|
|
DEBUG_BUFFERS("\tfirstLumSrcY: %d lastLumSrcY: %d lastInLumBuf: %d\n",
|
|
firstLumSrcY, lastLumSrcY, lastInLumBuf);
|
|
DEBUG_BUFFERS("\tfirstChrSrcY: %d lastChrSrcY: %d lastInChrBuf: %d\n",
|
|
firstChrSrcY, lastChrSrcY, lastInChrBuf);
|
|
|
|
// Do we have enough lines in this slice to output the dstY line
|
|
enough_lines = lastLumSrcY2 < srcSliceY + srcSliceH && lastChrSrcY < -((-srcSliceY - srcSliceH)>>c->chrSrcVSubSample);
|
|
|
|
if (!enough_lines) {
|
|
lastLumSrcY = srcSliceY + srcSliceH - 1;
|
|
lastChrSrcY = chrSrcSliceY + chrSrcSliceH - 1;
|
|
DEBUG_BUFFERS("buffering slice: lastLumSrcY %d lastChrSrcY %d\n",
|
|
lastLumSrcY, lastChrSrcY);
|
|
}
|
|
|
|
//Do horizontal scaling
|
|
while(lastInLumBuf < lastLumSrcY) {
|
|
const uint8_t *src1[4] = {
|
|
src[0] + (lastInLumBuf + 1 - srcSliceY) * srcStride[0],
|
|
src[1] + (lastInLumBuf + 1 - srcSliceY) * srcStride[1],
|
|
src[2] + (lastInLumBuf + 1 - srcSliceY) * srcStride[2],
|
|
src[3] + (lastInLumBuf + 1 - srcSliceY) * srcStride[3],
|
|
};
|
|
lumBufIndex++;
|
|
assert(lumBufIndex < 2*vLumBufSize);
|
|
assert(lastInLumBuf + 1 - srcSliceY < srcSliceH);
|
|
assert(lastInLumBuf + 1 - srcSliceY >= 0);
|
|
hyscale(c, lumPixBuf[ lumBufIndex ], dstW, src1, srcW, lumXInc,
|
|
hLumFilter, hLumFilterPos, hLumFilterSize,
|
|
formatConvBuffer,
|
|
pal, 0);
|
|
if (CONFIG_SWSCALE_ALPHA && alpPixBuf)
|
|
hyscale(c, alpPixBuf[ lumBufIndex ], dstW, src1, srcW,
|
|
lumXInc, hLumFilter, hLumFilterPos, hLumFilterSize,
|
|
formatConvBuffer,
|
|
pal, 1);
|
|
lastInLumBuf++;
|
|
DEBUG_BUFFERS("\t\tlumBufIndex %d: lastInLumBuf: %d\n",
|
|
lumBufIndex, lastInLumBuf);
|
|
}
|
|
while(lastInChrBuf < lastChrSrcY) {
|
|
const uint8_t *src1[4] = {
|
|
src[0] + (lastInChrBuf + 1 - chrSrcSliceY) * srcStride[0],
|
|
src[1] + (lastInChrBuf + 1 - chrSrcSliceY) * srcStride[1],
|
|
src[2] + (lastInChrBuf + 1 - chrSrcSliceY) * srcStride[2],
|
|
src[3] + (lastInChrBuf + 1 - chrSrcSliceY) * srcStride[3],
|
|
};
|
|
chrBufIndex++;
|
|
assert(chrBufIndex < 2*vChrBufSize);
|
|
assert(lastInChrBuf + 1 - chrSrcSliceY < (chrSrcSliceH));
|
|
assert(lastInChrBuf + 1 - chrSrcSliceY >= 0);
|
|
//FIXME replace parameters through context struct (some at least)
|
|
|
|
if (c->needs_hcscale)
|
|
hcscale(c, chrUPixBuf[chrBufIndex], chrVPixBuf[chrBufIndex],
|
|
chrDstW, src1, chrSrcW, chrXInc,
|
|
hChrFilter, hChrFilterPos, hChrFilterSize,
|
|
formatConvBuffer, pal);
|
|
lastInChrBuf++;
|
|
DEBUG_BUFFERS("\t\tchrBufIndex %d: lastInChrBuf: %d\n",
|
|
chrBufIndex, lastInChrBuf);
|
|
}
|
|
//wrap buf index around to stay inside the ring buffer
|
|
if (lumBufIndex >= vLumBufSize) lumBufIndex-= vLumBufSize;
|
|
if (chrBufIndex >= vChrBufSize) chrBufIndex-= vChrBufSize;
|
|
if (!enough_lines)
|
|
break; //we can't output a dstY line so let's try with the next slice
|
|
|
|
#if HAVE_MMX
|
|
updateMMXDitherTables(c, dstY, lumBufIndex, chrBufIndex, lastInLumBuf, lastInChrBuf);
|
|
#endif
|
|
if (should_dither) {
|
|
c->chrDither8 = dither_8x8_128[chrDstY & 7];
|
|
c->lumDither8 = dither_8x8_128[dstY & 7];
|
|
}
|
|
if (dstY >= dstH-2) {
|
|
// hmm looks like we can't use MMX here without overwriting this array's tail
|
|
ff_sws_init_output_funcs(c, &yuv2plane1, &yuv2planeX, &yuv2nv12cX,
|
|
&yuv2packed1, &yuv2packed2, &yuv2packedX);
|
|
}
|
|
|
|
{
|
|
const int16_t **lumSrcPtr= (const int16_t **) lumPixBuf + lumBufIndex + firstLumSrcY - lastInLumBuf + vLumBufSize;
|
|
const int16_t **chrUSrcPtr= (const int16_t **) chrUPixBuf + chrBufIndex + firstChrSrcY - lastInChrBuf + vChrBufSize;
|
|
const int16_t **chrVSrcPtr= (const int16_t **) chrVPixBuf + chrBufIndex + firstChrSrcY - lastInChrBuf + vChrBufSize;
|
|
const int16_t **alpSrcPtr= (CONFIG_SWSCALE_ALPHA && alpPixBuf) ? (const int16_t **) alpPixBuf + lumBufIndex + firstLumSrcY - lastInLumBuf + vLumBufSize : NULL;
|
|
|
|
if (firstLumSrcY < 0 || firstLumSrcY + vLumFilterSize > c->srcH) {
|
|
const int16_t **tmpY = (const int16_t **) lumPixBuf + 2 * vLumBufSize;
|
|
int neg = -firstLumSrcY, i, end = FFMIN(c->srcH - firstLumSrcY, vLumFilterSize);
|
|
for (i = 0; i < neg; i++)
|
|
tmpY[i] = lumSrcPtr[neg];
|
|
for ( ; i < end; i++)
|
|
tmpY[i] = lumSrcPtr[i];
|
|
for ( ; i < vLumFilterSize; i++)
|
|
tmpY[i] = tmpY[i-1];
|
|
lumSrcPtr = tmpY;
|
|
|
|
if (alpSrcPtr) {
|
|
const int16_t **tmpA = (const int16_t **) alpPixBuf + 2 * vLumBufSize;
|
|
for (i = 0; i < neg; i++)
|
|
tmpA[i] = alpSrcPtr[neg];
|
|
for ( ; i < end; i++)
|
|
tmpA[i] = alpSrcPtr[i];
|
|
for ( ; i < vLumFilterSize; i++)
|
|
tmpA[i] = tmpA[i - 1];
|
|
alpSrcPtr = tmpA;
|
|
}
|
|
}
|
|
if (firstChrSrcY < 0 || firstChrSrcY + vChrFilterSize > c->chrSrcH) {
|
|
const int16_t **tmpU = (const int16_t **) chrUPixBuf + 2 * vChrBufSize,
|
|
**tmpV = (const int16_t **) chrVPixBuf + 2 * vChrBufSize;
|
|
int neg = -firstChrSrcY, i, end = FFMIN(c->chrSrcH - firstChrSrcY, vChrFilterSize);
|
|
for (i = 0; i < neg; i++) {
|
|
tmpU[i] = chrUSrcPtr[neg];
|
|
tmpV[i] = chrVSrcPtr[neg];
|
|
}
|
|
for ( ; i < end; i++) {
|
|
tmpU[i] = chrUSrcPtr[i];
|
|
tmpV[i] = chrVSrcPtr[i];
|
|
}
|
|
for ( ; i < vChrFilterSize; i++) {
|
|
tmpU[i] = tmpU[i - 1];
|
|
tmpV[i] = tmpV[i - 1];
|
|
}
|
|
chrUSrcPtr = tmpU;
|
|
chrVSrcPtr = tmpV;
|
|
}
|
|
|
|
if (isPlanarYUV(dstFormat) || (isGray(dstFormat) && !isALPHA(dstFormat))) { //YV12 like
|
|
const int chrSkipMask= (1<<c->chrDstVSubSample)-1;
|
|
|
|
if (vLumFilterSize == 1) {
|
|
yuv2plane1(lumSrcPtr[0], dest[0], dstW, c->lumDither8, 0);
|
|
} else {
|
|
yuv2planeX(vLumFilter + dstY * vLumFilterSize, vLumFilterSize,
|
|
lumSrcPtr, dest[0], dstW, c->lumDither8, 0);
|
|
}
|
|
|
|
if (!((dstY&chrSkipMask) || isGray(dstFormat))) {
|
|
if (yuv2nv12cX) {
|
|
yuv2nv12cX(c, vChrFilter + chrDstY * vChrFilterSize, vChrFilterSize, chrUSrcPtr, chrVSrcPtr, dest[1], chrDstW);
|
|
} else if (vChrFilterSize == 1) {
|
|
yuv2plane1(chrUSrcPtr[0], dest[1], chrDstW, c->chrDither8, 0);
|
|
yuv2plane1(chrVSrcPtr[0], dest[2], chrDstW, c->chrDither8, 3);
|
|
} else {
|
|
yuv2planeX(vChrFilter + chrDstY * vChrFilterSize, vChrFilterSize,
|
|
chrUSrcPtr, dest[1], chrDstW, c->chrDither8, 0);
|
|
yuv2planeX(vChrFilter + chrDstY * vChrFilterSize, vChrFilterSize,
|
|
chrVSrcPtr, dest[2], chrDstW, c->chrDither8, 3);
|
|
}
|
|
}
|
|
|
|
if (CONFIG_SWSCALE_ALPHA && alpPixBuf){
|
|
if (vLumFilterSize == 1) {
|
|
yuv2plane1(alpSrcPtr[0], dest[3], dstW, c->lumDither8, 0);
|
|
} else {
|
|
yuv2planeX(vLumFilter + dstY * vLumFilterSize, vLumFilterSize,
|
|
alpSrcPtr, dest[3], dstW, c->lumDither8, 0);
|
|
}
|
|
}
|
|
} else {
|
|
assert(lumSrcPtr + vLumFilterSize - 1 < lumPixBuf + vLumBufSize*2);
|
|
assert(chrUSrcPtr + vChrFilterSize - 1 < chrUPixBuf + vChrBufSize*2);
|
|
if (c->yuv2packed1 && vLumFilterSize == 1 && vChrFilterSize <= 2) { //unscaled RGB
|
|
int chrAlpha = vChrFilterSize == 1 ? 0 : vChrFilter[2 * dstY + 1];
|
|
yuv2packed1(c, *lumSrcPtr, chrUSrcPtr, chrVSrcPtr,
|
|
alpPixBuf ? *alpSrcPtr : NULL,
|
|
dest[0], dstW, chrAlpha, dstY);
|
|
} else if (c->yuv2packed2 && vLumFilterSize == 2 && vChrFilterSize == 2) { //bilinear upscale RGB
|
|
int lumAlpha = vLumFilter[2 * dstY + 1];
|
|
int chrAlpha = vChrFilter[2 * dstY + 1];
|
|
lumMmxFilter[2] =
|
|
lumMmxFilter[3] = vLumFilter[2 * dstY ] * 0x10001;
|
|
chrMmxFilter[2] =
|
|
chrMmxFilter[3] = vChrFilter[2 * chrDstY] * 0x10001;
|
|
yuv2packed2(c, lumSrcPtr, chrUSrcPtr, chrVSrcPtr,
|
|
alpPixBuf ? alpSrcPtr : NULL,
|
|
dest[0], dstW, lumAlpha, chrAlpha, dstY);
|
|
} else { //general RGB
|
|
yuv2packedX(c, vLumFilter + dstY * vLumFilterSize,
|
|
lumSrcPtr, vLumFilterSize,
|
|
vChrFilter + dstY * vChrFilterSize,
|
|
chrUSrcPtr, chrVSrcPtr, vChrFilterSize,
|
|
alpSrcPtr, dest[0], dstW, dstY);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (isPlanar(dstFormat) && isALPHA(dstFormat) && !alpPixBuf)
|
|
fillPlane(dst[3], dstStride[3], dstW, dstY-lastDstY, lastDstY, 255);
|
|
|
|
#if HAVE_MMX2
|
|
if (av_get_cpu_flags() & AV_CPU_FLAG_MMX2)
|
|
__asm__ volatile("sfence":::"memory");
|
|
#endif
|
|
emms_c();
|
|
|
|
/* store changed local vars back in the context */
|
|
c->dstY= dstY;
|
|
c->lumBufIndex= lumBufIndex;
|
|
c->chrBufIndex= chrBufIndex;
|
|
c->lastInLumBuf= lastInLumBuf;
|
|
c->lastInChrBuf= lastInChrBuf;
|
|
|
|
return dstY - lastDstY;
|
|
}
|
|
|
|
static av_cold void sws_init_swScale_c(SwsContext *c)
|
|
{
|
|
enum PixelFormat srcFormat = c->srcFormat;
|
|
|
|
ff_sws_init_output_funcs(c, &c->yuv2plane1, &c->yuv2planeX,
|
|
&c->yuv2nv12cX, &c->yuv2packed1,
|
|
&c->yuv2packed2, &c->yuv2packedX);
|
|
|
|
ff_sws_init_input_funcs(c);
|
|
|
|
if (c->srcBpc == 8) {
|
|
if (c->dstBpc <= 10) {
|
|
c->hyScale = c->hcScale = hScale8To15_c;
|
|
if (c->flags & SWS_FAST_BILINEAR) {
|
|
c->hyscale_fast = hyscale_fast_c;
|
|
c->hcscale_fast = hcscale_fast_c;
|
|
}
|
|
} else {
|
|
c->hyScale = c->hcScale = hScale8To19_c;
|
|
}
|
|
} else {
|
|
c->hyScale = c->hcScale = c->dstBpc > 10 ? hScale16To19_c : hScale16To15_c;
|
|
}
|
|
|
|
if (c->srcRange != c->dstRange && !isAnyRGB(c->dstFormat)) {
|
|
if (c->dstBpc <= 10) {
|
|
if (c->srcRange) {
|
|
c->lumConvertRange = lumRangeFromJpeg_c;
|
|
c->chrConvertRange = chrRangeFromJpeg_c;
|
|
} else {
|
|
c->lumConvertRange = lumRangeToJpeg_c;
|
|
c->chrConvertRange = chrRangeToJpeg_c;
|
|
}
|
|
} else {
|
|
if (c->srcRange) {
|
|
c->lumConvertRange = lumRangeFromJpeg16_c;
|
|
c->chrConvertRange = chrRangeFromJpeg16_c;
|
|
} else {
|
|
c->lumConvertRange = lumRangeToJpeg16_c;
|
|
c->chrConvertRange = chrRangeToJpeg16_c;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!(isGray(srcFormat) || isGray(c->dstFormat) ||
|
|
srcFormat == PIX_FMT_MONOBLACK || srcFormat == PIX_FMT_MONOWHITE))
|
|
c->needs_hcscale = 1;
|
|
}
|
|
|
|
SwsFunc ff_getSwsFunc(SwsContext *c)
|
|
{
|
|
sws_init_swScale_c(c);
|
|
|
|
if (HAVE_MMX)
|
|
ff_sws_init_swScale_mmx(c);
|
|
if (HAVE_ALTIVEC)
|
|
ff_sws_init_swScale_altivec(c);
|
|
|
|
return swScale;
|
|
}
|