288 lines
12 KiB
C
288 lines
12 KiB
C
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/*
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* Copyright (C) 2015 Pedro Arthur <bygrandao@gmail.com>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg 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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* FFmpeg 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 FFmpeg; 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 "swscale_internal.h"
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static int lum_planar_vscale(SwsContext *c, SwsFilterDescriptor *desc, int sliceY, int sliceH)
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{
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VScalerContext *inst = desc->instance;
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int dstW = desc->dst->width;
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int first = FFMAX(1-inst->filter_size, inst->filter_pos[sliceY]);
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int sp = first - desc->src->plane[0].sliceY;
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int dp = sliceY - desc->dst->plane[0].sliceY;
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uint8_t **src = desc->src->plane[0].line + sp;
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uint8_t **dst = desc->dst->plane[0].line + dp;
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uint16_t *filter = inst->filter[0] + (inst->isMMX ? 0 : sliceY * inst->filter_size);
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if (inst->filter_size == 1)
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((yuv2planar1_fn)inst->pfn)((const int16_t*)src[0], dst[0], dstW, c->lumDither8, 0);
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else
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((yuv2planarX_fn)inst->pfn)(filter, inst->filter_size, (const int16_t**)src, dst[0], dstW, c->lumDither8, 0);
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if (desc->alpha) {
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int sp = first - desc->src->plane[3].sliceY;
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int dp = sliceY - desc->dst->plane[3].sliceY;
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uint8_t **src = desc->src->plane[3].line + sp;
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uint8_t **dst = desc->dst->plane[3].line + dp;
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uint16_t *filter = inst->filter[1] + (inst->isMMX ? 0 : sliceY * inst->filter_size);
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if (inst->filter_size == 1)
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((yuv2planar1_fn)inst->pfn)((const int16_t*)src[0], dst[0], dstW, c->lumDither8, 0);
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else
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((yuv2planarX_fn)inst->pfn)(filter, inst->filter_size, (const int16_t**)src, dst[0], dstW, c->lumDither8, 0);
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}
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return 1;
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}
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static int chr_planar_vscale(SwsContext *c, SwsFilterDescriptor *desc, int sliceY, int sliceH)
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{
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const int chrSkipMask = (1 << desc->dst->v_chr_sub_sample) - 1;
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if (sliceY & chrSkipMask)
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return 0;
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else {
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VScalerContext *inst = desc->instance;
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int dstW = FF_CEIL_RSHIFT(desc->dst->width, desc->dst->h_chr_sub_sample);
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int chrSliceY = sliceY >> desc->dst->v_chr_sub_sample;
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int first = FFMAX(1-inst->filter_size, inst->filter_pos[chrSliceY]);
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int sp1 = first - desc->src->plane[1].sliceY;
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int sp2 = first - desc->src->plane[2].sliceY;
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int dp1 = chrSliceY - desc->dst->plane[1].sliceY;
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int dp2 = chrSliceY - desc->dst->plane[2].sliceY;
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uint8_t **src1 = desc->src->plane[1].line + sp1;
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uint8_t **src2 = desc->src->plane[2].line + sp2;
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uint8_t **dst1 = desc->dst->plane[1].line + dp1;
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uint8_t **dst2 = desc->dst->plane[2].line + dp2;
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uint16_t *filter = inst->filter[0] + (inst->isMMX ? 0 : chrSliceY * inst->filter_size);
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if (c->yuv2nv12cX) {
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((yuv2interleavedX_fn)inst->pfn)(c, filter, inst->filter_size, (const int16_t**)src1, (const int16_t**)src2, dst1[0], dstW);
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} else if (inst->filter_size == 1) {
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((yuv2planar1_fn)inst->pfn)((const int16_t*)src1[0], dst1[0], dstW, c->chrDither8, 0);
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((yuv2planar1_fn)inst->pfn)((const int16_t*)src2[0], dst2[0], dstW, c->chrDither8, 3);
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} else {
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((yuv2planarX_fn)inst->pfn)(filter, inst->filter_size, (const int16_t**)src1, dst1[0], dstW, c->chrDither8, 0);
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((yuv2planarX_fn)inst->pfn)(filter, inst->filter_size, (const int16_t**)src2, dst2[0], dstW, c->chrDither8, inst->isMMX ? (c->uv_offx2 >> 1) : 3);
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}
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}
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return 1;
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}
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static int packed_vscale(SwsContext *c, SwsFilterDescriptor *desc, int sliceY, int sliceH)
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{
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VScalerContext *inst = desc->instance;
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int dstW = desc->dst->width;
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int chrSliceY = sliceY >> desc->dst->v_chr_sub_sample;
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int lum_fsize = inst[0].filter_size;
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int chr_fsize = inst[1].filter_size;
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uint16_t *lum_filter = inst[0].filter[0];
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uint16_t *chr_filter = inst[1].filter[0];
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int firstLum = FFMAX(1-lum_fsize, inst[0].filter_pos[chrSliceY]);
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int firstChr = FFMAX(1-chr_fsize, inst[1].filter_pos[chrSliceY]);
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int sp0 = firstLum - desc->src->plane[0].sliceY;
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int sp1 = firstChr - desc->src->plane[1].sliceY;
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int sp2 = firstChr - desc->src->plane[2].sliceY;
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int sp3 = firstLum - desc->src->plane[3].sliceY;
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int dp = sliceY - desc->dst->plane[0].sliceY;
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uint8_t **src0 = desc->src->plane[0].line + sp0;
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uint8_t **src1 = desc->src->plane[1].line + sp1;
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uint8_t **src2 = desc->src->plane[2].line + sp2;
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uint8_t **src3 = desc->alpha ? desc->src->plane[3].line + sp3 : NULL;
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uint8_t **dst = desc->dst->plane[0].line + dp;
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if (c->yuv2packed1 && lum_fsize == 1 && chr_fsize <= 2) { // unscaled RGB
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int chrAlpha = chr_fsize == 1 ? 0 : chr_filter[2 * sliceY + 1];
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((yuv2packed1_fn)inst->pfn)(c, (const int16_t*)*src0, (const int16_t**)src1, (const int16_t**)src2, (const int16_t*)(desc->alpha ? *src3 : NULL), *dst, dstW, chrAlpha, sliceY);
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} else if (c->yuv2packed2 && lum_fsize == 2 && chr_fsize == 2) { // bilinear upscale RGB
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int lumAlpha = lum_filter[2 * sliceY + 1];
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int chrAlpha = chr_filter[2 * sliceY + 1];
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c->lumMmxFilter[2] =
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c->lumMmxFilter[3] = lum_filter[2 * sliceY] * 0x10001;
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c->chrMmxFilter[2] =
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c->chrMmxFilter[3] = chr_filter[2 * chrSliceY] * 0x10001;
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((yuv2packed2_fn)inst->pfn)(c, (const int16_t**)src0, (const int16_t**)src1, (const int16_t**)src2, (const int16_t**)src3,
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*dst, dstW, lumAlpha, chrAlpha, sliceY);
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} else { // general RGB
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((yuv2packedX_fn)inst->pfn)(c, lum_filter + sliceY * lum_fsize,
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(const int16_t**)src0, lum_fsize, chr_filter + sliceY * chr_fsize,
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(const int16_t**)src1, (const int16_t**)src2, chr_fsize, (const int16_t**)src3, *dst, dstW, sliceY);
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}
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return 1;
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}
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static int any_vscale(SwsContext *c, SwsFilterDescriptor *desc, int sliceY, int sliceH)
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{
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VScalerContext *inst = desc->instance;
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int dstW = desc->dst->width;
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int chrSliceY = sliceY >> desc->dst->v_chr_sub_sample;
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int lum_fsize = inst[0].filter_size;
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int chr_fsize = inst[1].filter_size;
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uint16_t *lum_filter = inst[0].filter[0];
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uint16_t *chr_filter = inst[1].filter[0];
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int firstLum = FFMAX(1-lum_fsize, inst[0].filter_pos[chrSliceY]);
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int firstChr = FFMAX(1-chr_fsize, inst[1].filter_pos[chrSliceY]);
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int sp0 = firstLum - desc->src->plane[0].sliceY;
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int sp1 = firstChr - desc->src->plane[1].sliceY;
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int sp2 = firstChr - desc->src->plane[2].sliceY;
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int sp3 = firstLum - desc->src->plane[3].sliceY;
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int dp0 = sliceY - desc->dst->plane[0].sliceY;
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int dp1 = chrSliceY - desc->dst->plane[1].sliceY;
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int dp2 = chrSliceY - desc->dst->plane[2].sliceY;
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int dp3 = sliceY - desc->dst->plane[3].sliceY;
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uint8_t **src0 = desc->src->plane[0].line + sp0;
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uint8_t **src1 = desc->src->plane[1].line + sp1;
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uint8_t **src2 = desc->src->plane[2].line + sp2;
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uint8_t **src3 = desc->alpha ? desc->src->plane[3].line + sp3 : NULL;
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uint8_t *dst[4] = { desc->dst->plane[0].line[dp0],
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desc->dst->plane[1].line[dp1],
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desc->dst->plane[2].line[dp2],
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desc->alpha ? desc->dst->plane[3].line[dp3] : NULL };
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av_assert1(!c->yuv2packed1 && !c->yuv2packed2);
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((yuv2anyX_fn)inst->pfn)(c, lum_filter + sliceY * lum_fsize,
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(const int16_t**)src0, lum_fsize, chr_filter + sliceY * chr_fsize,
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(const int16_t**)src1, (const int16_t**)src2, chr_fsize, (const int16_t**)src3, dst, dstW, sliceY);
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return 1;
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}
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int ff_init_vscale(SwsContext *c, SwsFilterDescriptor *desc, SwsSlice *src, SwsSlice *dst)
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{
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VScalerContext *lumCtx = NULL;
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VScalerContext *chrCtx = NULL;
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if (isPlanarYUV(c->dstFormat) || (isGray(c->dstFormat) && !isALPHA(c->dstFormat))) {
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lumCtx = av_mallocz(sizeof(VScalerContext));
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if (!lumCtx)
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return AVERROR(ENOMEM);
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desc[0].process = lum_planar_vscale;
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desc[0].instance = lumCtx;
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desc[0].src = src;
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desc[0].dst = dst;
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desc[0].alpha = c->alpPixBuf != 0;
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if (!isGray(c->dstFormat)) {
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chrCtx = av_mallocz(sizeof(VScalerContext));
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if (!chrCtx)
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return AVERROR(ENOMEM);
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desc[1].process = chr_planar_vscale;
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desc[1].instance = chrCtx;
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desc[1].src = src;
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desc[1].dst = dst;
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}
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} else {
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lumCtx = av_mallocz_array(sizeof(VScalerContext), 2);
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if (!lumCtx)
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return AVERROR(ENOMEM);
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chrCtx = &lumCtx[1];
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desc[0].process = c->yuv2packedX ? packed_vscale : any_vscale;
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desc[0].instance = lumCtx;
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desc[0].src = src;
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desc[0].dst = dst;
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desc[0].alpha = c->alpPixBuf != 0;
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}
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ff_init_vscale_pfn(c, c->yuv2plane1, c->yuv2planeX, c->yuv2nv12cX,
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c->yuv2packed1, c->yuv2packed2, c->yuv2packedX, c->yuv2anyX, c->use_mmx_vfilter);
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return 0;
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}
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void ff_init_vscale_pfn(SwsContext *c,
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yuv2planar1_fn yuv2plane1,
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yuv2planarX_fn yuv2planeX,
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yuv2interleavedX_fn yuv2nv12cX,
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yuv2packed1_fn yuv2packed1,
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yuv2packed2_fn yuv2packed2,
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yuv2packedX_fn yuv2packedX,
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yuv2anyX_fn yuv2anyX, int use_mmx)
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{
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VScalerContext *lumCtx = NULL;
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VScalerContext *chrCtx = NULL;
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int idx = c->numDesc - 1;
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if (isPlanarYUV(c->dstFormat) || (isGray(c->dstFormat) && !isALPHA(c->dstFormat))) {
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if (!isGray(c->dstFormat)) {
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chrCtx = c->desc[idx].instance;
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chrCtx->filter[0] = use_mmx ? (int16_t*)c->chrMmxFilter : c->vChrFilter;
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chrCtx->filter_size = c->vChrFilterSize;
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chrCtx->filter_pos = c->vChrFilterPos;
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chrCtx->isMMX = use_mmx;
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--idx;
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if (yuv2nv12cX) chrCtx->pfn = yuv2nv12cX;
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else if (c->vChrFilterSize == 1) chrCtx->pfn = yuv2plane1;
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else chrCtx->pfn = yuv2planeX;
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}
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lumCtx = c->desc[idx].instance;
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lumCtx->filter[0] = use_mmx ? (int16_t*)c->lumMmxFilter : c->vLumFilter;
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lumCtx->filter[1] = use_mmx ? (int16_t*)c->alpMmxFilter : c->vLumFilter;
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lumCtx->filter_size = c->vLumFilterSize;
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lumCtx->filter_pos = c->vLumFilterPos;
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lumCtx->isMMX = use_mmx;
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if (c->vLumFilterSize == 1) lumCtx->pfn = yuv2plane1;
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else lumCtx->pfn = yuv2planeX;
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} else {
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lumCtx = c->desc[idx].instance;
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chrCtx = &lumCtx[1];
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lumCtx->filter[0] = c->vLumFilter;
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lumCtx->filter_size = c->vLumFilterSize;
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lumCtx->filter_pos = c->vLumFilterPos;
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chrCtx->filter[0] = c->vChrFilter;
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chrCtx->filter_size = c->vChrFilterSize;
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chrCtx->filter_pos = c->vChrFilterPos;
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lumCtx->isMMX = use_mmx;
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chrCtx->isMMX = use_mmx;
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if (yuv2packedX) {
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if (c->yuv2packed1 && c->vLumFilterSize == 1 && c->vChrFilterSize <= 2)
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lumCtx->pfn = yuv2packed1;
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else if (c->yuv2packed2 && c->vLumFilterSize == 2 && c->vChrFilterSize == 2)
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lumCtx->pfn = yuv2packed2;
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else
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lumCtx->pfn = yuv2packedX;
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} else
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lumCtx->pfn = yuv2anyX;
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}
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}
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