| /* |
| * Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at> |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg 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 |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include <inttypes.h> |
| #include <string.h> |
| #include <math.h> |
| #include <stdio.h> |
| #include "config.h" |
| #include <assert.h> |
| #include "swscale.h" |
| #include "swscale_internal.h" |
| #include "rgb2rgb.h" |
| #include "libavutil/intreadwrite.h" |
| #include "libavutil/cpu.h" |
| #include "libavutil/avutil.h" |
| #include "libavutil/mathematics.h" |
| #include "libavutil/bswap.h" |
| #include "libavutil/pixdesc.h" |
| |
| #define RGB2YUV_SHIFT 15 |
| #define BY ( (int)(0.114*219/255*(1<<RGB2YUV_SHIFT)+0.5)) |
| #define BV (-(int)(0.081*224/255*(1<<RGB2YUV_SHIFT)+0.5)) |
| #define BU ( (int)(0.500*224/255*(1<<RGB2YUV_SHIFT)+0.5)) |
| #define GY ( (int)(0.587*219/255*(1<<RGB2YUV_SHIFT)+0.5)) |
| #define GV (-(int)(0.419*224/255*(1<<RGB2YUV_SHIFT)+0.5)) |
| #define GU (-(int)(0.331*224/255*(1<<RGB2YUV_SHIFT)+0.5)) |
| #define RY ( (int)(0.299*219/255*(1<<RGB2YUV_SHIFT)+0.5)) |
| #define RV ( (int)(0.500*224/255*(1<<RGB2YUV_SHIFT)+0.5)) |
| #define RU (-(int)(0.169*224/255*(1<<RGB2YUV_SHIFT)+0.5)) |
| |
| static void fillPlane(uint8_t* plane, int stride, int width, int height, int y, uint8_t val) |
| { |
| int i; |
| uint8_t *ptr = plane + stride*y; |
| for (i=0; i<height; i++) { |
| memset(ptr, val, width); |
| ptr += stride; |
| } |
| } |
| |
| static void copyPlane(const uint8_t *src, int srcStride, |
| int srcSliceY, int srcSliceH, int width, |
| uint8_t *dst, int dstStride) |
| { |
| dst += dstStride * srcSliceY; |
| if (dstStride == srcStride && srcStride > 0) { |
| memcpy(dst, src, srcSliceH * dstStride); |
| } else { |
| int i; |
| for (i=0; i<srcSliceH; i++) { |
| memcpy(dst, src, width); |
| src += srcStride; |
| dst += dstStride; |
| } |
| } |
| } |
| |
| static int planarToNv12Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY, |
| int srcSliceH, uint8_t* dstParam[], int dstStride[]) |
| { |
| uint8_t *dst = dstParam[1] + dstStride[1]*srcSliceY/2; |
| |
| copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW, |
| dstParam[0], dstStride[0]); |
| |
| if (c->dstFormat == PIX_FMT_NV12) |
| interleaveBytes(src[1], src[2], dst, c->srcW/2, srcSliceH/2, srcStride[1], srcStride[2], dstStride[0]); |
| else |
| interleaveBytes(src[2], src[1], dst, c->srcW/2, srcSliceH/2, srcStride[2], srcStride[1], dstStride[0]); |
| |
| return srcSliceH; |
| } |
| |
| static int planarToYuy2Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY, |
| int srcSliceH, uint8_t* dstParam[], int dstStride[]) |
| { |
| uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY; |
| |
| yv12toyuy2(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], srcStride[1], dstStride[0]); |
| |
| return srcSliceH; |
| } |
| |
| static int planarToUyvyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY, |
| int srcSliceH, uint8_t* dstParam[], int dstStride[]) |
| { |
| uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY; |
| |
| yv12touyvy(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], srcStride[1], dstStride[0]); |
| |
| return srcSliceH; |
| } |
| |
| static int yuv422pToYuy2Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY, |
| int srcSliceH, uint8_t* dstParam[], int dstStride[]) |
| { |
| uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY; |
| |
| yuv422ptoyuy2(src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0]); |
| |
| return srcSliceH; |
| } |
| |
| static int yuv422pToUyvyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY, |
| int srcSliceH, uint8_t* dstParam[], int dstStride[]) |
| { |
| uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY; |
| |
| yuv422ptouyvy(src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0]); |
| |
| return srcSliceH; |
| } |
| |
| static int yuyvToYuv420Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY, |
| int srcSliceH, uint8_t* dstParam[], int dstStride[]) |
| { |
| uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY; |
| uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY/2; |
| uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY/2; |
| |
| yuyvtoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]); |
| |
| if (dstParam[3]) |
| fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255); |
| |
| return srcSliceH; |
| } |
| |
| static int yuyvToYuv422Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY, |
| int srcSliceH, uint8_t* dstParam[], int dstStride[]) |
| { |
| uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY; |
| uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY; |
| uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY; |
| |
| yuyvtoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]); |
| |
| return srcSliceH; |
| } |
| |
| static int uyvyToYuv420Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY, |
| int srcSliceH, uint8_t* dstParam[], int dstStride[]) |
| { |
| uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY; |
| uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY/2; |
| uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY/2; |
| |
| uyvytoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]); |
| |
| if (dstParam[3]) |
| fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255); |
| |
| return srcSliceH; |
| } |
| |
| static int uyvyToYuv422Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY, |
| int srcSliceH, uint8_t* dstParam[], int dstStride[]) |
| { |
| uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY; |
| uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY; |
| uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY; |
| |
| uyvytoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]); |
| |
| return srcSliceH; |
| } |
| |
| static void gray8aToPacked32(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette) |
| { |
| int i; |
| for (i=0; i<num_pixels; i++) |
| ((uint32_t *) dst)[i] = ((const uint32_t *)palette)[src[i<<1]] | (src[(i<<1)+1] << 24); |
| } |
| |
| static void gray8aToPacked32_1(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette) |
| { |
| int i; |
| |
| for (i=0; i<num_pixels; i++) |
| ((uint32_t *) dst)[i] = ((const uint32_t *)palette)[src[i<<1]] | src[(i<<1)+1]; |
| } |
| |
| static void gray8aToPacked24(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette) |
| { |
| int i; |
| |
| for (i=0; i<num_pixels; i++) { |
| //FIXME slow? |
| dst[0]= palette[src[i<<1]*4+0]; |
| dst[1]= palette[src[i<<1]*4+1]; |
| dst[2]= palette[src[i<<1]*4+2]; |
| dst+= 3; |
| } |
| } |
| |
| static int palToRgbWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY, |
| int srcSliceH, uint8_t* dst[], int dstStride[]) |
| { |
| const enum PixelFormat srcFormat= c->srcFormat; |
| const enum PixelFormat dstFormat= c->dstFormat; |
| void (*conv)(const uint8_t *src, uint8_t *dst, long num_pixels, |
| const uint8_t *palette)=NULL; |
| int i; |
| uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY; |
| const uint8_t *srcPtr= src[0]; |
| |
| if (srcFormat == PIX_FMT_GRAY8A) { |
| switch (dstFormat) { |
| case PIX_FMT_RGB32 : conv = gray8aToPacked32; break; |
| case PIX_FMT_BGR32 : conv = gray8aToPacked32; break; |
| case PIX_FMT_BGR32_1: conv = gray8aToPacked32_1; break; |
| case PIX_FMT_RGB32_1: conv = gray8aToPacked32_1; break; |
| case PIX_FMT_RGB24 : conv = gray8aToPacked24; break; |
| case PIX_FMT_BGR24 : conv = gray8aToPacked24; break; |
| } |
| } else if (usePal(srcFormat)) { |
| switch (dstFormat) { |
| case PIX_FMT_RGB32 : conv = sws_convertPalette8ToPacked32; break; |
| case PIX_FMT_BGR32 : conv = sws_convertPalette8ToPacked32; break; |
| case PIX_FMT_BGR32_1: conv = sws_convertPalette8ToPacked32; break; |
| case PIX_FMT_RGB32_1: conv = sws_convertPalette8ToPacked32; break; |
| case PIX_FMT_RGB24 : conv = sws_convertPalette8ToPacked24; break; |
| case PIX_FMT_BGR24 : conv = sws_convertPalette8ToPacked24; break; |
| } |
| } |
| |
| if (!conv) |
| av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n", |
| av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat)); |
| else { |
| for (i=0; i<srcSliceH; i++) { |
| conv(srcPtr, dstPtr, c->srcW, (uint8_t *) c->pal_rgb); |
| srcPtr+= srcStride[0]; |
| dstPtr+= dstStride[0]; |
| } |
| } |
| |
| return srcSliceH; |
| } |
| |
| #define isRGBA32(x) ( \ |
| (x) == PIX_FMT_ARGB \ |
| || (x) == PIX_FMT_RGBA \ |
| || (x) == PIX_FMT_BGRA \ |
| || (x) == PIX_FMT_ABGR \ |
| ) |
| |
| /* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */ |
| static int rgbToRgbWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY, |
| int srcSliceH, uint8_t* dst[], int dstStride[]) |
| { |
| const enum PixelFormat srcFormat= c->srcFormat; |
| const enum PixelFormat dstFormat= c->dstFormat; |
| const int srcBpp= (c->srcFormatBpp + 7) >> 3; |
| const int dstBpp= (c->dstFormatBpp + 7) >> 3; |
| const int srcId= c->srcFormatBpp >> 2; /* 1:0, 4:1, 8:2, 15:3, 16:4, 24:6, 32:8 */ |
| const int dstId= c->dstFormatBpp >> 2; |
| void (*conv)(const uint8_t *src, uint8_t *dst, int src_size)=NULL; |
| |
| #define CONV_IS(src, dst) (srcFormat == PIX_FMT_##src && dstFormat == PIX_FMT_##dst) |
| |
| if (isRGBA32(srcFormat) && isRGBA32(dstFormat)) { |
| if ( CONV_IS(ABGR, RGBA) |
| || CONV_IS(ARGB, BGRA) |
| || CONV_IS(BGRA, ARGB) |
| || CONV_IS(RGBA, ABGR)) conv = shuffle_bytes_3210; |
| else if (CONV_IS(ABGR, ARGB) |
| || CONV_IS(ARGB, ABGR)) conv = shuffle_bytes_0321; |
| else if (CONV_IS(ABGR, BGRA) |
| || CONV_IS(ARGB, RGBA)) conv = shuffle_bytes_1230; |
| else if (CONV_IS(BGRA, RGBA) |
| || CONV_IS(RGBA, BGRA)) conv = shuffle_bytes_2103; |
| else if (CONV_IS(BGRA, ABGR) |
| || CONV_IS(RGBA, ARGB)) conv = shuffle_bytes_3012; |
| } else |
| /* BGR -> BGR */ |
| if ( (isBGRinInt(srcFormat) && isBGRinInt(dstFormat)) |
| || (isRGBinInt(srcFormat) && isRGBinInt(dstFormat))) { |
| switch(srcId | (dstId<<4)) { |
| case 0x34: conv= rgb16to15; break; |
| case 0x36: conv= rgb24to15; break; |
| case 0x38: conv= rgb32to15; break; |
| case 0x43: conv= rgb15to16; break; |
| case 0x46: conv= rgb24to16; break; |
| case 0x48: conv= rgb32to16; break; |
| case 0x63: conv= rgb15to24; break; |
| case 0x64: conv= rgb16to24; break; |
| case 0x68: conv= rgb32to24; break; |
| case 0x83: conv= rgb15to32; break; |
| case 0x84: conv= rgb16to32; break; |
| case 0x86: conv= rgb24to32; break; |
| } |
| } else if ( (isBGRinInt(srcFormat) && isRGBinInt(dstFormat)) |
| || (isRGBinInt(srcFormat) && isBGRinInt(dstFormat))) { |
| switch(srcId | (dstId<<4)) { |
| case 0x33: conv= rgb15tobgr15; break; |
| case 0x34: conv= rgb16tobgr15; break; |
| case 0x36: conv= rgb24tobgr15; break; |
| case 0x38: conv= rgb32tobgr15; break; |
| case 0x43: conv= rgb15tobgr16; break; |
| case 0x44: conv= rgb16tobgr16; break; |
| case 0x46: conv= rgb24tobgr16; break; |
| case 0x48: conv= rgb32tobgr16; break; |
| case 0x63: conv= rgb15tobgr24; break; |
| case 0x64: conv= rgb16tobgr24; break; |
| case 0x66: conv= rgb24tobgr24; break; |
| case 0x68: conv= rgb32tobgr24; break; |
| case 0x83: conv= rgb15tobgr32; break; |
| case 0x84: conv= rgb16tobgr32; break; |
| case 0x86: conv= rgb24tobgr32; break; |
| } |
| } |
| |
| if (!conv) { |
| av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n", |
| av_get_pix_fmt_name(srcFormat), av_get_pix_fmt_name(dstFormat)); |
| } else { |
| const uint8_t *srcPtr= src[0]; |
| uint8_t *dstPtr= dst[0]; |
| if ((srcFormat == PIX_FMT_RGB32_1 || srcFormat == PIX_FMT_BGR32_1) && !isRGBA32(dstFormat)) |
| srcPtr += ALT32_CORR; |
| |
| if ((dstFormat == PIX_FMT_RGB32_1 || dstFormat == PIX_FMT_BGR32_1) && !isRGBA32(srcFormat)) |
| dstPtr += ALT32_CORR; |
| |
| if (dstStride[0]*srcBpp == srcStride[0]*dstBpp && srcStride[0] > 0 && !(srcStride[0]%srcBpp)) |
| conv(srcPtr, dstPtr + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]); |
| else { |
| int i; |
| dstPtr += dstStride[0]*srcSliceY; |
| |
| for (i=0; i<srcSliceH; i++) { |
| conv(srcPtr, dstPtr, c->srcW*srcBpp); |
| srcPtr+= srcStride[0]; |
| dstPtr+= dstStride[0]; |
| } |
| } |
| } |
| return srcSliceH; |
| } |
| |
| static int bgr24ToYv12Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY, |
| int srcSliceH, uint8_t* dst[], int dstStride[]) |
| { |
| rgb24toyv12( |
| src[0], |
| dst[0]+ srcSliceY *dstStride[0], |
| dst[1]+(srcSliceY>>1)*dstStride[1], |
| dst[2]+(srcSliceY>>1)*dstStride[2], |
| c->srcW, srcSliceH, |
| dstStride[0], dstStride[1], srcStride[0]); |
| if (dst[3]) |
| fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255); |
| return srcSliceH; |
| } |
| |
| static int yvu9ToYv12Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY, |
| int srcSliceH, uint8_t* dst[], int dstStride[]) |
| { |
| copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW, |
| dst[0], dstStride[0]); |
| |
| planar2x(src[1], dst[1] + dstStride[1]*(srcSliceY >> 1), c->chrSrcW, |
| srcSliceH >> 2, srcStride[1], dstStride[1]); |
| planar2x(src[2], dst[2] + dstStride[2]*(srcSliceY >> 1), c->chrSrcW, |
| srcSliceH >> 2, srcStride[2], dstStride[2]); |
| if (dst[3]) |
| fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255); |
| return srcSliceH; |
| } |
| |
| /* unscaled copy like stuff (assumes nearly identical formats) */ |
| static int packedCopyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY, |
| int srcSliceH, uint8_t* dst[], int dstStride[]) |
| { |
| if (dstStride[0]==srcStride[0] && srcStride[0] > 0) |
| memcpy(dst[0] + dstStride[0]*srcSliceY, src[0], srcSliceH*dstStride[0]); |
| else { |
| int i; |
| const uint8_t *srcPtr= src[0]; |
| uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY; |
| int length=0; |
| |
| /* universal length finder */ |
| while(length+c->srcW <= FFABS(dstStride[0]) |
| && length+c->srcW <= FFABS(srcStride[0])) length+= c->srcW; |
| assert(length!=0); |
| |
| for (i=0; i<srcSliceH; i++) { |
| memcpy(dstPtr, srcPtr, length); |
| srcPtr+= srcStride[0]; |
| dstPtr+= dstStride[0]; |
| } |
| } |
| return srcSliceH; |
| } |
| |
| #define DITHER_COPY(dst, dstStride, src, srcStride, bswap, dbswap)\ |
| uint16_t scale= dither_scale[dst_depth-1][src_depth-1];\ |
| int shift= src_depth-dst_depth + dither_scale[src_depth-2][dst_depth-1];\ |
| for (i = 0; i < height; i++) {\ |
| const uint8_t *dither= dithers[src_depth-9][i&7];\ |
| for (j = 0; j < length-7; j+=8){\ |
| dst[j+0] = dbswap((bswap(src[j+0]) + dither[0])*scale>>shift);\ |
| dst[j+1] = dbswap((bswap(src[j+1]) + dither[1])*scale>>shift);\ |
| dst[j+2] = dbswap((bswap(src[j+2]) + dither[2])*scale>>shift);\ |
| dst[j+3] = dbswap((bswap(src[j+3]) + dither[3])*scale>>shift);\ |
| dst[j+4] = dbswap((bswap(src[j+4]) + dither[4])*scale>>shift);\ |
| dst[j+5] = dbswap((bswap(src[j+5]) + dither[5])*scale>>shift);\ |
| dst[j+6] = dbswap((bswap(src[j+6]) + dither[6])*scale>>shift);\ |
| dst[j+7] = dbswap((bswap(src[j+7]) + dither[7])*scale>>shift);\ |
| }\ |
| for (; j < length; j++)\ |
| dst[j] = dbswap((bswap(src[j]) + dither[j&7])*scale>>shift);\ |
| dst += dstStride;\ |
| src += srcStride;\ |
| } |
| |
| |
| static int planarCopyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY, |
| int srcSliceH, uint8_t* dst[], int dstStride[]) |
| { |
| int plane, i, j; |
| for (plane=0; plane<4; plane++) { |
| int length= (plane==0 || plane==3) ? c->srcW : -((-c->srcW )>>c->chrDstHSubSample); |
| int y= (plane==0 || plane==3) ? srcSliceY: -((-srcSliceY)>>c->chrDstVSubSample); |
| int height= (plane==0 || plane==3) ? srcSliceH: -((-srcSliceH)>>c->chrDstVSubSample); |
| const uint8_t *srcPtr= src[plane]; |
| uint8_t *dstPtr= dst[plane] + dstStride[plane]*y; |
| |
| if (!dst[plane]) continue; |
| // ignore palette for GRAY8 |
| if (plane == 1 && !dst[2]) continue; |
| if (!src[plane] || (plane == 1 && !src[2])) { |
| if(is16BPS(c->dstFormat)) |
| length*=2; |
| fillPlane(dst[plane], dstStride[plane], length, height, y, (plane==3) ? 255 : 128); |
| } else { |
| if(isNBPS(c->srcFormat) || isNBPS(c->dstFormat) |
| || (is16BPS(c->srcFormat) != is16BPS(c->dstFormat)) |
| ) { |
| const int src_depth = av_pix_fmt_descriptors[c->srcFormat].comp[plane].depth_minus1+1; |
| const int dst_depth = av_pix_fmt_descriptors[c->dstFormat].comp[plane].depth_minus1+1; |
| const uint16_t *srcPtr2 = (const uint16_t*)srcPtr; |
| uint16_t *dstPtr2 = (uint16_t*)dstPtr; |
| |
| if (dst_depth == 8) { |
| if(isBE(c->srcFormat) == HAVE_BIGENDIAN){ |
| DITHER_COPY(dstPtr, dstStride[plane], srcPtr2, srcStride[plane]/2, , ) |
| } else { |
| DITHER_COPY(dstPtr, dstStride[plane], srcPtr2, srcStride[plane]/2, av_bswap16, ) |
| } |
| } else if (src_depth == 8) { |
| for (i = 0; i < height; i++) { |
| if(isBE(c->dstFormat)){ |
| for (j = 0; j < length; j++) |
| AV_WB16(&dstPtr2[j], (srcPtr[j]<<(dst_depth-8)) | |
| (srcPtr[j]>>(2*8-dst_depth))); |
| } else { |
| for (j = 0; j < length; j++) |
| AV_WL16(&dstPtr2[j], (srcPtr[j]<<(dst_depth-8)) | |
| (srcPtr[j]>>(2*8-dst_depth))); |
| } |
| dstPtr2 += dstStride[plane]/2; |
| srcPtr += srcStride[plane]; |
| } |
| } else if (src_depth <= dst_depth) { |
| for (i = 0; i < height; i++) { |
| #define COPY_UP(r,w) \ |
| for (j = 0; j < length; j++){ \ |
| unsigned int v= r(&srcPtr2[j]);\ |
| w(&dstPtr2[j], (v<<(dst_depth-src_depth)) | \ |
| (v>>(2*src_depth-dst_depth)));\ |
| } |
| if(isBE(c->srcFormat)){ |
| if(isBE(c->dstFormat)){ |
| COPY_UP(AV_RB16, AV_WB16) |
| } else { |
| COPY_UP(AV_RB16, AV_WL16) |
| } |
| } else { |
| if(isBE(c->dstFormat)){ |
| COPY_UP(AV_RL16, AV_WB16) |
| } else { |
| COPY_UP(AV_RL16, AV_WL16) |
| } |
| } |
| dstPtr2 += dstStride[plane]/2; |
| srcPtr2 += srcStride[plane]/2; |
| } |
| } else { |
| if(isBE(c->srcFormat) == HAVE_BIGENDIAN){ |
| if(isBE(c->dstFormat) == HAVE_BIGENDIAN){ |
| DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, , ) |
| } else { |
| DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, , av_bswap16) |
| } |
| }else{ |
| if(isBE(c->dstFormat) == HAVE_BIGENDIAN){ |
| DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, av_bswap16, ) |
| } else { |
| DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, av_bswap16, av_bswap16) |
| } |
| } |
| } |
| } else if(is16BPS(c->srcFormat) && is16BPS(c->dstFormat) |
| && isBE(c->srcFormat) != isBE(c->dstFormat)) { |
| |
| for (i=0; i<height; i++) { |
| for (j=0; j<length; j++) |
| ((uint16_t*)dstPtr)[j] = av_bswap16(((const uint16_t*)srcPtr)[j]); |
| srcPtr+= srcStride[plane]; |
| dstPtr+= dstStride[plane]; |
| } |
| } else if (dstStride[plane] == srcStride[plane] && |
| srcStride[plane] > 0 && srcStride[plane] == length) { |
| memcpy(dst[plane] + dstStride[plane]*y, src[plane], |
| height*dstStride[plane]); |
| } else { |
| if(is16BPS(c->srcFormat) && is16BPS(c->dstFormat)) |
| length*=2; |
| for (i=0; i<height; i++) { |
| memcpy(dstPtr, srcPtr, length); |
| srcPtr+= srcStride[plane]; |
| dstPtr+= dstStride[plane]; |
| } |
| } |
| } |
| } |
| return srcSliceH; |
| } |
| |
| void ff_get_unscaled_swscale(SwsContext *c) |
| { |
| const enum PixelFormat srcFormat = c->srcFormat; |
| const enum PixelFormat dstFormat = c->dstFormat; |
| const int flags = c->flags; |
| const int dstH = c->dstH; |
| int needsDither; |
| |
| needsDither= isAnyRGB(dstFormat) |
| && c->dstFormatBpp < 24 |
| && (c->dstFormatBpp < c->srcFormatBpp || (!isAnyRGB(srcFormat))); |
| |
| /* yv12_to_nv12 */ |
| if ((srcFormat == PIX_FMT_YUV420P || srcFormat == PIX_FMT_YUVA420P) && (dstFormat == PIX_FMT_NV12 || dstFormat == PIX_FMT_NV21)) { |
| c->swScale= planarToNv12Wrapper; |
| } |
| /* yuv2bgr */ |
| if ((srcFormat==PIX_FMT_YUV420P || srcFormat==PIX_FMT_YUV422P || srcFormat==PIX_FMT_YUVA420P) && isAnyRGB(dstFormat) |
| && !(flags & SWS_ACCURATE_RND) && !(dstH&1)) { |
| c->swScale= ff_yuv2rgb_get_func_ptr(c); |
| } |
| |
| if (srcFormat==PIX_FMT_YUV410P && (dstFormat==PIX_FMT_YUV420P || dstFormat==PIX_FMT_YUVA420P) && !(flags & SWS_BITEXACT)) { |
| c->swScale= yvu9ToYv12Wrapper; |
| } |
| |
| /* bgr24toYV12 */ |
| if (srcFormat==PIX_FMT_BGR24 && (dstFormat==PIX_FMT_YUV420P || dstFormat==PIX_FMT_YUVA420P) && !(flags & SWS_ACCURATE_RND)) |
| c->swScale= bgr24ToYv12Wrapper; |
| |
| /* RGB/BGR -> RGB/BGR (no dither needed forms) */ |
| if ( isAnyRGB(srcFormat) |
| && isAnyRGB(dstFormat) |
| && srcFormat != PIX_FMT_BGR8 && dstFormat != PIX_FMT_BGR8 |
| && srcFormat != PIX_FMT_RGB8 && dstFormat != PIX_FMT_RGB8 |
| && srcFormat != PIX_FMT_BGR4 && dstFormat != PIX_FMT_BGR4 |
| && srcFormat != PIX_FMT_RGB4 && dstFormat != PIX_FMT_RGB4 |
| && srcFormat != PIX_FMT_BGR4_BYTE && dstFormat != PIX_FMT_BGR4_BYTE |
| && srcFormat != PIX_FMT_RGB4_BYTE && dstFormat != PIX_FMT_RGB4_BYTE |
| && srcFormat != PIX_FMT_MONOBLACK && dstFormat != PIX_FMT_MONOBLACK |
| && srcFormat != PIX_FMT_MONOWHITE && dstFormat != PIX_FMT_MONOWHITE |
| && srcFormat != PIX_FMT_RGB48LE && dstFormat != PIX_FMT_RGB48LE |
| && srcFormat != PIX_FMT_RGB48BE && dstFormat != PIX_FMT_RGB48BE |
| && srcFormat != PIX_FMT_BGR48LE && dstFormat != PIX_FMT_BGR48LE |
| && srcFormat != PIX_FMT_BGR48BE && dstFormat != PIX_FMT_BGR48BE |
| && (!needsDither || (c->flags&(SWS_FAST_BILINEAR|SWS_POINT)))) |
| c->swScale= rgbToRgbWrapper; |
| |
| if ((usePal(srcFormat) && ( |
| dstFormat == PIX_FMT_RGB32 || |
| dstFormat == PIX_FMT_RGB32_1 || |
| dstFormat == PIX_FMT_RGB24 || |
| dstFormat == PIX_FMT_BGR32 || |
| dstFormat == PIX_FMT_BGR32_1 || |
| dstFormat == PIX_FMT_BGR24))) |
| c->swScale= palToRgbWrapper; |
| |
| if (srcFormat == PIX_FMT_YUV422P) { |
| if (dstFormat == PIX_FMT_YUYV422) |
| c->swScale= yuv422pToYuy2Wrapper; |
| else if (dstFormat == PIX_FMT_UYVY422) |
| c->swScale= yuv422pToUyvyWrapper; |
| } |
| |
| /* LQ converters if -sws 0 or -sws 4*/ |
| if (c->flags&(SWS_FAST_BILINEAR|SWS_POINT)) { |
| /* yv12_to_yuy2 */ |
| if (srcFormat == PIX_FMT_YUV420P || srcFormat == PIX_FMT_YUVA420P) { |
| if (dstFormat == PIX_FMT_YUYV422) |
| c->swScale= planarToYuy2Wrapper; |
| else if (dstFormat == PIX_FMT_UYVY422) |
| c->swScale= planarToUyvyWrapper; |
| } |
| } |
| if(srcFormat == PIX_FMT_YUYV422 && (dstFormat == PIX_FMT_YUV420P || dstFormat == PIX_FMT_YUVA420P)) |
| c->swScale= yuyvToYuv420Wrapper; |
| if(srcFormat == PIX_FMT_UYVY422 && (dstFormat == PIX_FMT_YUV420P || dstFormat == PIX_FMT_YUVA420P)) |
| c->swScale= uyvyToYuv420Wrapper; |
| if(srcFormat == PIX_FMT_YUYV422 && dstFormat == PIX_FMT_YUV422P) |
| c->swScale= yuyvToYuv422Wrapper; |
| if(srcFormat == PIX_FMT_UYVY422 && dstFormat == PIX_FMT_YUV422P) |
| c->swScale= uyvyToYuv422Wrapper; |
| |
| /* simple copy */ |
| if ( srcFormat == dstFormat |
| || (srcFormat == PIX_FMT_YUVA420P && dstFormat == PIX_FMT_YUV420P) |
| || (srcFormat == PIX_FMT_YUV420P && dstFormat == PIX_FMT_YUVA420P) |
| || (isPlanarYUV(srcFormat) && isGray(dstFormat)) |
| || (isPlanarYUV(dstFormat) && isGray(srcFormat)) |
| || (isGray(dstFormat) && isGray(srcFormat)) |
| || (isPlanarYUV(srcFormat) && isPlanarYUV(dstFormat) |
| && c->chrDstHSubSample == c->chrSrcHSubSample |
| && c->chrDstVSubSample == c->chrSrcVSubSample |
| && dstFormat != PIX_FMT_NV12 && dstFormat != PIX_FMT_NV21 |
| && srcFormat != PIX_FMT_NV12 && srcFormat != PIX_FMT_NV21)) |
| { |
| if (isPacked(c->srcFormat)) |
| c->swScale= packedCopyWrapper; |
| else /* Planar YUV or gray */ |
| c->swScale= planarCopyWrapper; |
| } |
| |
| if (ARCH_BFIN) |
| ff_bfin_get_unscaled_swscale(c); |
| if (HAVE_ALTIVEC) |
| ff_swscale_get_unscaled_altivec(c); |
| } |
| |
| static void reset_ptr(const uint8_t* src[], int format) |
| { |
| if(!isALPHA(format)) |
| src[3]=NULL; |
| if(!isPlanarYUV(format)) { |
| src[3]=src[2]=NULL; |
| |
| if (!usePal(format)) |
| src[1]= NULL; |
| } |
| } |
| |
| static int check_image_pointers(uint8_t *data[4], enum PixelFormat pix_fmt, |
| const int linesizes[4]) |
| { |
| const AVPixFmtDescriptor *desc = &av_pix_fmt_descriptors[pix_fmt]; |
| int i; |
| |
| for (i = 0; i < 4; i++) { |
| int plane = desc->comp[i].plane; |
| if (!data[plane] || !linesizes[plane]) |
| return 0; |
| } |
| |
| return 1; |
| } |
| |
| /** |
| * swscale wrapper, so we don't need to export the SwsContext. |
| * Assumes planar YUV to be in YUV order instead of YVU. |
| */ |
| int sws_scale(SwsContext *c, const uint8_t* const src[], const int srcStride[], int srcSliceY, |
| int srcSliceH, uint8_t* const dst[], const int dstStride[]) |
| { |
| int i; |
| const uint8_t* src2[4]= {src[0], src[1], src[2], src[3]}; |
| uint8_t* dst2[4]= {dst[0], dst[1], dst[2], dst[3]}; |
| |
| // do not mess up sliceDir if we have a "trailing" 0-size slice |
| if (srcSliceH == 0) |
| return 0; |
| |
| if (!check_image_pointers(src, c->srcFormat, srcStride)) { |
| av_log(c, AV_LOG_ERROR, "bad src image pointers\n"); |
| return 0; |
| } |
| if (!check_image_pointers(dst, c->dstFormat, dstStride)) { |
| av_log(c, AV_LOG_ERROR, "bad dst image pointers\n"); |
| return 0; |
| } |
| |
| if (c->sliceDir == 0 && srcSliceY != 0 && srcSliceY + srcSliceH != c->srcH) { |
| av_log(c, AV_LOG_ERROR, "Slices start in the middle!\n"); |
| return 0; |
| } |
| if (c->sliceDir == 0) { |
| if (srcSliceY == 0) c->sliceDir = 1; else c->sliceDir = -1; |
| } |
| |
| if (usePal(c->srcFormat)) { |
| for (i=0; i<256; i++) { |
| int p, r, g, b, y, u, v, a = 0xff; |
| if(c->srcFormat == PIX_FMT_PAL8) { |
| p=((const uint32_t*)(src[1]))[i]; |
| a= (p>>24)&0xFF; |
| r= (p>>16)&0xFF; |
| g= (p>> 8)&0xFF; |
| b= p &0xFF; |
| } else if(c->srcFormat == PIX_FMT_RGB8) { |
| r= (i>>5 )*36; |
| g= ((i>>2)&7)*36; |
| b= (i&3 )*85; |
| } else if(c->srcFormat == PIX_FMT_BGR8) { |
| b= (i>>6 )*85; |
| g= ((i>>3)&7)*36; |
| r= (i&7 )*36; |
| } else if(c->srcFormat == PIX_FMT_RGB4_BYTE) { |
| r= (i>>3 )*255; |
| g= ((i>>1)&3)*85; |
| b= (i&1 )*255; |
| } else if(c->srcFormat == PIX_FMT_GRAY8 || c->srcFormat == PIX_FMT_GRAY8A) { |
| r = g = b = i; |
| } else { |
| assert(c->srcFormat == PIX_FMT_BGR4_BYTE); |
| b= (i>>3 )*255; |
| g= ((i>>1)&3)*85; |
| r= (i&1 )*255; |
| } |
| y= av_clip_uint8((RY*r + GY*g + BY*b + ( 33<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT); |
| u= av_clip_uint8((RU*r + GU*g + BU*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT); |
| v= av_clip_uint8((RV*r + GV*g + BV*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT); |
| c->pal_yuv[i]= y + (u<<8) + (v<<16) + (a<<24); |
| |
| switch(c->dstFormat) { |
| case PIX_FMT_BGR32: |
| #if !HAVE_BIGENDIAN |
| case PIX_FMT_RGB24: |
| #endif |
| c->pal_rgb[i]= r + (g<<8) + (b<<16) + (a<<24); |
| break; |
| case PIX_FMT_BGR32_1: |
| #if HAVE_BIGENDIAN |
| case PIX_FMT_BGR24: |
| #endif |
| c->pal_rgb[i]= a + (r<<8) + (g<<16) + (b<<24); |
| break; |
| case PIX_FMT_RGB32_1: |
| #if HAVE_BIGENDIAN |
| case PIX_FMT_RGB24: |
| #endif |
| c->pal_rgb[i]= a + (b<<8) + (g<<16) + (r<<24); |
| break; |
| case PIX_FMT_RGB32: |
| #if !HAVE_BIGENDIAN |
| case PIX_FMT_BGR24: |
| #endif |
| default: |
| c->pal_rgb[i]= b + (g<<8) + (r<<16) + (a<<24); |
| } |
| } |
| } |
| |
| // copy strides, so they can safely be modified |
| if (c->sliceDir == 1) { |
| // slices go from top to bottom |
| int srcStride2[4]= {srcStride[0], srcStride[1], srcStride[2], srcStride[3]}; |
| int dstStride2[4]= {dstStride[0], dstStride[1], dstStride[2], dstStride[3]}; |
| |
| reset_ptr(src2, c->srcFormat); |
| reset_ptr((const uint8_t**)dst2, c->dstFormat); |
| |
| /* reset slice direction at end of frame */ |
| if (srcSliceY + srcSliceH == c->srcH) |
| c->sliceDir = 0; |
| |
| return c->swScale(c, src2, srcStride2, srcSliceY, srcSliceH, dst2, dstStride2); |
| } else { |
| // slices go from bottom to top => we flip the image internally |
| int srcStride2[4]= {-srcStride[0], -srcStride[1], -srcStride[2], -srcStride[3]}; |
| int dstStride2[4]= {-dstStride[0], -dstStride[1], -dstStride[2], -dstStride[3]}; |
| |
| src2[0] += (srcSliceH-1)*srcStride[0]; |
| if (!usePal(c->srcFormat)) |
| src2[1] += ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[1]; |
| src2[2] += ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[2]; |
| src2[3] += (srcSliceH-1)*srcStride[3]; |
| dst2[0] += ( c->dstH -1)*dstStride[0]; |
| dst2[1] += ((c->dstH>>c->chrDstVSubSample)-1)*dstStride[1]; |
| dst2[2] += ((c->dstH>>c->chrDstVSubSample)-1)*dstStride[2]; |
| dst2[3] += ( c->dstH -1)*dstStride[3]; |
| |
| reset_ptr(src2, c->srcFormat); |
| reset_ptr((const uint8_t**)dst2, c->dstFormat); |
| |
| /* reset slice direction at end of frame */ |
| if (!srcSliceY) |
| c->sliceDir = 0; |
| |
| return c->swScale(c, src2, srcStride2, c->srcH-srcSliceY-srcSliceH, srcSliceH, dst2, dstStride2); |
| } |
| } |
| |
| #if LIBSWSCALE_VERSION_MAJOR < 1 |
| int sws_scale_ordered(SwsContext *c, const uint8_t* const src[], int srcStride[], int srcSliceY, |
| int srcSliceH, uint8_t* dst[], int dstStride[]) |
| { |
| return sws_scale(c, src, srcStride, srcSliceY, srcSliceH, dst, dstStride); |
| } |
| #endif |
| |
| /* Convert the palette to the same packed 32-bit format as the palette */ |
| void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette) |
| { |
| int i; |
| |
| for (i=0; i<num_pixels; i++) |
| ((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i]]; |
| } |
| |
| /* Palette format: ABCD -> dst format: ABC */ |
| void sws_convertPalette8ToPacked24(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette) |
| { |
| int i; |
| |
| for (i=0; i<num_pixels; i++) { |
| //FIXME slow? |
| dst[0]= palette[src[i]*4+0]; |
| dst[1]= palette[src[i]*4+1]; |
| dst[2]= palette[src[i]*4+2]; |
| dst+= 3; |
| } |
| } |
