| /* |
| * Copyright (C) 2001-2011 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)) |
| |
| DECLARE_ALIGNED(8, const uint8_t, dithers)[8][8][8]={ |
| { |
| { 0, 1, 0, 1, 0, 1, 0, 1,}, |
| { 1, 0, 1, 0, 1, 0, 1, 0,}, |
| { 0, 1, 0, 1, 0, 1, 0, 1,}, |
| { 1, 0, 1, 0, 1, 0, 1, 0,}, |
| { 0, 1, 0, 1, 0, 1, 0, 1,}, |
| { 1, 0, 1, 0, 1, 0, 1, 0,}, |
| { 0, 1, 0, 1, 0, 1, 0, 1,}, |
| { 1, 0, 1, 0, 1, 0, 1, 0,}, |
| },{ |
| { 1, 2, 1, 2, 1, 2, 1, 2,}, |
| { 3, 0, 3, 0, 3, 0, 3, 0,}, |
| { 1, 2, 1, 2, 1, 2, 1, 2,}, |
| { 3, 0, 3, 0, 3, 0, 3, 0,}, |
| { 1, 2, 1, 2, 1, 2, 1, 2,}, |
| { 3, 0, 3, 0, 3, 0, 3, 0,}, |
| { 1, 2, 1, 2, 1, 2, 1, 2,}, |
| { 3, 0, 3, 0, 3, 0, 3, 0,}, |
| },{ |
| { 2, 4, 3, 5, 2, 4, 3, 5,}, |
| { 6, 0, 7, 1, 6, 0, 7, 1,}, |
| { 3, 5, 2, 4, 3, 5, 2, 4,}, |
| { 7, 1, 6, 0, 7, 1, 6, 0,}, |
| { 2, 4, 3, 5, 2, 4, 3, 5,}, |
| { 6, 0, 7, 1, 6, 0, 7, 1,}, |
| { 3, 5, 2, 4, 3, 5, 2, 4,}, |
| { 7, 1, 6, 0, 7, 1, 6, 0,}, |
| },{ |
| { 4, 8, 7, 11, 4, 8, 7, 11,}, |
| { 12, 0, 15, 3, 12, 0, 15, 3,}, |
| { 6, 10, 5, 9, 6, 10, 5, 9,}, |
| { 14, 2, 13, 1, 14, 2, 13, 1,}, |
| { 4, 8, 7, 11, 4, 8, 7, 11,}, |
| { 12, 0, 15, 3, 12, 0, 15, 3,}, |
| { 6, 10, 5, 9, 6, 10, 5, 9,}, |
| { 14, 2, 13, 1, 14, 2, 13, 1,}, |
| },{ |
| { 9, 17, 15, 23, 8, 16, 14, 22,}, |
| { 25, 1, 31, 7, 24, 0, 30, 6,}, |
| { 13, 21, 11, 19, 12, 20, 10, 18,}, |
| { 29, 5, 27, 3, 28, 4, 26, 2,}, |
| { 8, 16, 14, 22, 9, 17, 15, 23,}, |
| { 24, 0, 30, 6, 25, 1, 31, 7,}, |
| { 12, 20, 10, 18, 13, 21, 11, 19,}, |
| { 28, 4, 26, 2, 29, 5, 27, 3,}, |
| },{ |
| { 18, 34, 30, 46, 17, 33, 29, 45,}, |
| { 50, 2, 62, 14, 49, 1, 61, 13,}, |
| { 26, 42, 22, 38, 25, 41, 21, 37,}, |
| { 58, 10, 54, 6, 57, 9, 53, 5,}, |
| { 16, 32, 28, 44, 19, 35, 31, 47,}, |
| { 48, 0, 60, 12, 51, 3, 63, 15,}, |
| { 24, 40, 20, 36, 27, 43, 23, 39,}, |
| { 56, 8, 52, 4, 59, 11, 55, 7,}, |
| },{ |
| { 18, 34, 30, 46, 17, 33, 29, 45,}, |
| { 50, 2, 62, 14, 49, 1, 61, 13,}, |
| { 26, 42, 22, 38, 25, 41, 21, 37,}, |
| { 58, 10, 54, 6, 57, 9, 53, 5,}, |
| { 16, 32, 28, 44, 19, 35, 31, 47,}, |
| { 48, 0, 60, 12, 51, 3, 63, 15,}, |
| { 24, 40, 20, 36, 27, 43, 23, 39,}, |
| { 56, 8, 52, 4, 59, 11, 55, 7,}, |
| },{ |
| { 36, 68, 60, 92, 34, 66, 58, 90,}, |
| { 100, 4,124, 28, 98, 2,122, 26,}, |
| { 52, 84, 44, 76, 50, 82, 42, 74,}, |
| { 116, 20,108, 12,114, 18,106, 10,}, |
| { 32, 64, 56, 88, 38, 70, 62, 94,}, |
| { 96, 0,120, 24,102, 6,126, 30,}, |
| { 48, 80, 40, 72, 54, 86, 46, 78,}, |
| { 112, 16,104, 8,118, 22,110, 14,}, |
| }}; |
| |
| static const uint8_t flat64[8]={64,64,64,64,64,64,64,64}; |
| |
| const uint16_t dither_scale[15][16]={ |
| { 2, 3, 3, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,}, |
| { 2, 3, 7, 7, 13, 13, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,}, |
| { 3, 3, 4, 15, 15, 29, 57, 57, 57, 113, 113, 113, 113, 113, 113, 113,}, |
| { 3, 4, 4, 5, 31, 31, 61, 121, 241, 241, 241, 241, 481, 481, 481, 481,}, |
| { 3, 4, 5, 5, 6, 63, 63, 125, 249, 497, 993, 993, 993, 993, 993, 1985,}, |
| { 3, 5, 6, 6, 6, 7, 127, 127, 253, 505, 1009, 2017, 4033, 4033, 4033, 4033,}, |
| { 3, 5, 6, 7, 7, 7, 8, 255, 255, 509, 1017, 2033, 4065, 8129,16257,16257,}, |
| { 3, 5, 6, 8, 8, 8, 8, 9, 511, 511, 1021, 2041, 4081, 8161,16321,32641,}, |
| { 3, 5, 7, 8, 9, 9, 9, 9, 10, 1023, 1023, 2045, 4089, 8177,16353,32705,}, |
| { 3, 5, 7, 8, 10, 10, 10, 10, 10, 11, 2047, 2047, 4093, 8185,16369,32737,}, |
| { 3, 5, 7, 8, 10, 11, 11, 11, 11, 11, 12, 4095, 4095, 8189,16377,32753,}, |
| { 3, 5, 7, 9, 10, 12, 12, 12, 12, 12, 12, 13, 8191, 8191,16381,32761,}, |
| { 3, 5, 7, 9, 10, 12, 13, 13, 13, 13, 13, 13, 14,16383,16383,32765,}, |
| { 3, 5, 7, 9, 10, 12, 14, 14, 14, 14, 14, 14, 14, 15,32767,32767,}, |
| { 3, 5, 7, 9, 11, 12, 14, 15, 15, 15, 15, 15, 15, 15, 16,65535,}, |
| }; |
| |
| |
| 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 fillPlane16(uint8_t *plane, int stride, int width, int height, int y, |
| int alpha, int bits) |
| { |
| int i, j; |
| uint8_t *ptr = plane + stride * y; |
| int v = alpha ? -1 : (1<<bits); |
| for (i = 0; i < height; i++) { |
| for (j = 0; j < width; j++) { |
| AV_WN16(ptr+2*j, v); |
| } |
| 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, int 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, int 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, int 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 packed_16bpc_bswap(SwsContext *c, const uint8_t *src[], |
| int srcStride[], int srcSliceY, int srcSliceH, |
| uint8_t *dst[], int dstStride[]) |
| { |
| int i, j; |
| int srcstr = srcStride[0] >> 1; |
| int dststr = dstStride[0] >> 1; |
| uint16_t *dstPtr = (uint16_t *) dst[0]; |
| const uint16_t *srcPtr = (const uint16_t *) src[0]; |
| int min_stride = FFMIN(srcstr, dststr); |
| |
| for (i = 0; i < srcSliceH; i++) { |
| for (j = 0; j < min_stride; j++) { |
| dstPtr[j] = av_bswap16(srcPtr[j]); |
| } |
| srcPtr += srcstr; |
| dstPtr += dststr; |
| } |
| |
| return srcSliceH; |
| } |
| |
| 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, int 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; |
| } |
| |
| static void gbr24ptopacked24(const uint8_t *src[], int srcStride[], |
| uint8_t *dst, int dstStride, int srcSliceH, |
| int width) |
| { |
| int x, h, i; |
| for (h = 0; h < srcSliceH; h++) { |
| uint8_t *dest = dst + dstStride * h; |
| for (x = 0; x < width; x++) { |
| *dest++ = src[0][x]; |
| *dest++ = src[1][x]; |
| *dest++ = src[2][x]; |
| } |
| |
| for (i = 0; i < 3; i++) |
| src[i] += srcStride[i]; |
| } |
| } |
| |
| static void gbr24ptopacked32(const uint8_t *src[], int srcStride[], |
| uint8_t *dst, int dstStride, int srcSliceH, |
| int alpha_first, int width) |
| { |
| int x, h, i; |
| for (h = 0; h < srcSliceH; h++) { |
| uint8_t *dest = dst + dstStride * h; |
| |
| if (alpha_first) { |
| for (x = 0; x < width; x++) { |
| *dest++ = 0xff; |
| *dest++ = src[0][x]; |
| *dest++ = src[1][x]; |
| *dest++ = src[2][x]; |
| } |
| } else { |
| for (x = 0; x < width; x++) { |
| *dest++ = src[0][x]; |
| *dest++ = src[1][x]; |
| *dest++ = src[2][x]; |
| *dest++ = 0xff; |
| } |
| } |
| |
| for (i = 0; i < 3; i++) |
| src[i] += srcStride[i]; |
| } |
| } |
| |
| static int planarRgbToRgbWrapper(SwsContext *c, const uint8_t *src[], |
| int srcStride[], int srcSliceY, int srcSliceH, |
| uint8_t *dst[], int dstStride[]) |
| { |
| int alpha_first = 0; |
| if (c->srcFormat != PIX_FMT_GBRP) { |
| av_log(c, AV_LOG_ERROR, "unsupported planar RGB conversion %s -> %s\n", |
| av_get_pix_fmt_name(c->srcFormat), |
| av_get_pix_fmt_name(c->dstFormat)); |
| return srcSliceH; |
| } |
| |
| switch (c->dstFormat) { |
| case PIX_FMT_BGR24: |
| gbr24ptopacked24((const uint8_t *[]) { src[1], src[0], src[2] }, |
| (int []) { srcStride[1], srcStride[0], srcStride[2] }, |
| dst[0] + srcSliceY * dstStride[0], dstStride[0], |
| srcSliceH, c->srcW); |
| break; |
| |
| case PIX_FMT_RGB24: |
| gbr24ptopacked24((const uint8_t *[]) { src[2], src[0], src[1] }, |
| (int []) { srcStride[2], srcStride[0], srcStride[1] }, |
| dst[0] + srcSliceY * dstStride[0], dstStride[0], |
| srcSliceH, c->srcW); |
| break; |
| |
| case PIX_FMT_ARGB: |
| alpha_first = 1; |
| case PIX_FMT_RGBA: |
| gbr24ptopacked32((const uint8_t *[]) { src[2], src[0], src[1] }, |
| (int []) { srcStride[2], srcStride[0], srcStride[1] }, |
| dst[0] + srcSliceY * dstStride[0], dstStride[0], |
| srcSliceH, alpha_first, c->srcW); |
| break; |
| |
| case PIX_FMT_ABGR: |
| alpha_first = 1; |
| case PIX_FMT_BGRA: |
| gbr24ptopacked32((const uint8_t *[]) { src[1], src[0], src[2] }, |
| (int []) { srcStride[1], srcStride[0], srcStride[2] }, |
| dst[0] + srcSliceY * dstStride[0], dstStride[0], |
| srcSliceH, alpha_first, c->srcW); |
| break; |
| |
| default: |
| av_log(c, AV_LOG_ERROR, |
| "unsupported planar RGB conversion %s -> %s\n", |
| av_get_pix_fmt_name(c->srcFormat), |
| av_get_pix_fmt_name(c->dstFormat)); |
| } |
| |
| 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} */ |
| typedef void (* rgbConvFn) (const uint8_t *, uint8_t *, int); |
| static rgbConvFn findRgbConvFn(SwsContext *c) |
| { |
| const enum PixelFormat srcFormat = c->srcFormat; |
| const enum PixelFormat dstFormat = c->dstFormat; |
| const int srcId = c->srcFormatBpp; |
| const int dstId = c->dstFormatBpp; |
| rgbConvFn conv = NULL; |
| |
| #define IS_NOT_NE(bpp, fmt) \ |
| (((bpp + 7) >> 3) == 2 && \ |
| (!(av_pix_fmt_descriptors[fmt].flags & PIX_FMT_BE) != !HAVE_BIGENDIAN)) |
| |
| /* if this is non-native rgb444/555/565, don't handle it here. */ |
| if (IS_NOT_NE(srcId, srcFormat) || IS_NOT_NE(dstId, dstFormat)) |
| return 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 << 16)) { |
| case 0x000F000C: conv = rgb12to15; break; |
| case 0x000F0010: conv = rgb16to15; break; |
| case 0x000F0018: conv = rgb24to15; break; |
| case 0x000F0020: conv = rgb32to15; break; |
| case 0x0010000F: conv = rgb15to16; break; |
| case 0x00100018: conv = rgb24to16; break; |
| case 0x00100020: conv = rgb32to16; break; |
| case 0x0018000F: conv = rgb15to24; break; |
| case 0x00180010: conv = rgb16to24; break; |
| case 0x00180020: conv = rgb32to24; break; |
| case 0x0020000F: conv = rgb15to32; break; |
| case 0x00200010: conv = rgb16to32; break; |
| case 0x00200018: conv = rgb24to32; break; |
| } |
| } else if ((isBGRinInt(srcFormat) && isRGBinInt(dstFormat)) || |
| (isRGBinInt(srcFormat) && isBGRinInt(dstFormat))) { |
| switch (srcId | (dstId << 16)) { |
| case 0x000C000C: conv = rgb12tobgr12; break; |
| case 0x000F000F: conv = rgb15tobgr15; break; |
| case 0x000F0010: conv = rgb16tobgr15; break; |
| case 0x000F0018: conv = rgb24tobgr15; break; |
| case 0x000F0020: conv = rgb32tobgr15; break; |
| case 0x0010000F: conv = rgb15tobgr16; break; |
| case 0x00100010: conv = rgb16tobgr16; break; |
| case 0x00100018: conv = rgb24tobgr16; break; |
| case 0x00100020: conv = rgb32tobgr16; break; |
| case 0x0018000F: conv = rgb15tobgr24; break; |
| case 0x00180010: conv = rgb16tobgr24; break; |
| case 0x00180018: conv = rgb24tobgr24; break; |
| case 0x00180020: conv = rgb32tobgr24; break; |
| case 0x0020000F: conv = rgb15tobgr32; break; |
| case 0x00200010: conv = rgb16tobgr32; break; |
| case 0x00200018: conv = rgb24tobgr32; break; |
| } |
| } |
| |
| if ((dstFormat == PIX_FMT_RGB32_1 || dstFormat == PIX_FMT_BGR32_1) && !isRGBA32(srcFormat) && ALT32_CORR<0) |
| return NULL; |
| |
| return conv; |
| } |
| |
| /* {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; |
| rgbConvFn conv = findRgbConvFn(c); |
| |
| 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; |
| int shiftonly= plane==1 || plane==2 || (!c->srcRange && plane==0); |
| |
| 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) || isNBPS(c->dstFormat)) { |
| fillPlane16(dst[plane], dstStride[plane], length, height, y, |
| plane == 3, av_pix_fmt_descriptors[c->dstFormat].comp[plane].depth_minus1); |
| } else { |
| 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++) { |
| #define COPY816(w)\ |
| if(shiftonly){\ |
| for (j = 0; j < length; j++)\ |
| w(&dstPtr2[j], srcPtr[j]<<(dst_depth-8));\ |
| }else{\ |
| for (j = 0; j < length; j++)\ |
| w(&dstPtr2[j], (srcPtr[j]<<(dst_depth-8)) |\ |
| (srcPtr[j]>>(2*8-dst_depth)));\ |
| } |
| if(isBE(c->dstFormat)){ |
| COPY816(AV_WB16) |
| } else { |
| COPY816(AV_WL16) |
| } |
| dstPtr2 += dstStride[plane]/2; |
| srcPtr += srcStride[plane]; |
| } |
| } else if (src_depth <= dst_depth) { |
| for (i = 0; i < height; i++) { |
| #define COPY_UP(r,w) \ |
| if(shiftonly){\ |
| for (j = 0; j < length; j++){ \ |
| unsigned int v= r(&srcPtr2[j]);\ |
| w(&dstPtr2[j], v<<(dst_depth-src_depth));\ |
| }\ |
| }else{\ |
| 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; |
| else if (!av_pix_fmt_descriptors[c->srcFormat].comp[0].depth_minus1) |
| length >>= 3; // monowhite/black |
| for (i = 0; i < height; i++) { |
| memcpy(dstPtr, srcPtr, length); |
| srcPtr += srcStride[plane]; |
| dstPtr += dstStride[plane]; |
| } |
| } |
| } |
| } |
| return srcSliceH; |
| } |
| |
| |
| #define IS_DIFFERENT_ENDIANESS(src_fmt, dst_fmt, pix_fmt) \ |
| ((src_fmt == pix_fmt ## BE && dst_fmt == pix_fmt ## LE) || \ |
| (src_fmt == pix_fmt ## LE && dst_fmt == pix_fmt ## BE)) |
| |
| |
| 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) && findRgbConvFn(c) |
| && (!needsDither || (c->flags&(SWS_FAST_BILINEAR|SWS_POINT)))) |
| c->swScale= rgbToRgbWrapper; |
| |
| #define isByteRGB(f) (\ |
| f == PIX_FMT_RGB32 ||\ |
| f == PIX_FMT_RGB32_1 ||\ |
| f == PIX_FMT_RGB24 ||\ |
| f == PIX_FMT_BGR32 ||\ |
| f == PIX_FMT_BGR32_1 ||\ |
| f == PIX_FMT_BGR24) |
| |
| if (isAnyRGB(srcFormat) && isPlanar(srcFormat) && isByteRGB(dstFormat)) |
| c->swScale = planarRgbToRgbWrapper; |
| |
| /* bswap 16 bits per pixel/component packed formats */ |
| if (IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, PIX_FMT_BGR444) || |
| IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, PIX_FMT_BGR48) || |
| IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, PIX_FMT_BGR555) || |
| IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, PIX_FMT_BGR565) || |
| IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, PIX_FMT_GRAY16) || |
| IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, PIX_FMT_RGB444) || |
| IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, PIX_FMT_RGB48) || |
| IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, PIX_FMT_RGB555) || |
| IS_DIFFERENT_ENDIANESS(srcFormat, dstFormat, PIX_FMT_RGB565)) |
| c->swScale = packed_16bpc_bswap; |
| |
| if (usePal(srcFormat) && isByteRGB(dstFormat)) |
| 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; |
| |
| #define isPlanarGray(x) (isGray(x) && (x) != PIX_FMT_GRAY8A) |
| /* simple copy */ |
| if ( srcFormat == dstFormat || |
| (srcFormat == PIX_FMT_YUVA420P && dstFormat == PIX_FMT_YUV420P) || |
| (srcFormat == PIX_FMT_YUV420P && dstFormat == PIX_FMT_YUVA420P) || |
| (isPlanarYUV(srcFormat) && isPlanarGray(dstFormat)) || |
| (isPlanarYUV(dstFormat) && isPlanarGray(srcFormat)) || |
| (isPlanarGray(dstFormat) && isPlanarGray(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 (!isPlanar(format)) { |
| src[3] = src[2] = NULL; |
| |
| if (!usePal(format)) |
| src[1] = NULL; |
| } |
| } |
| |
| static int check_image_pointers(const uint8_t * const 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 attribute_align_arg sws_scale(struct SwsContext *c, |
| const uint8_t * const srcSlice[], |
| const int srcStride[], int srcSliceY, |
| int srcSliceH, uint8_t *const dst[], |
| const int dstStride[]) |
| { |
| int i, ret; |
| const uint8_t *src2[4] = { srcSlice[0], srcSlice[1], srcSlice[2], srcSlice[3] }; |
| uint8_t *dst2[4] = { dst[0], dst[1], dst[2], dst[3] }; |
| uint8_t *rgb0_tmp = NULL; |
| |
| // do not mess up sliceDir if we have a "trailing" 0-size slice |
| if (srcSliceH == 0) |
| return 0; |
| |
| if (!check_image_pointers(srcSlice, c->srcFormat, srcStride)) { |
| av_log(c, AV_LOG_ERROR, "bad src image pointers\n"); |
| return 0; |
| } |
| if (!check_image_pointers((const uint8_t* const*)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 *)(srcSlice[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); |
| } |
| } |
| } |
| |
| if (c->src0Alpha && !c->dst0Alpha && isALPHA(c->dstFormat)) { |
| uint8_t *base; |
| int x,y; |
| rgb0_tmp = av_malloc(FFABS(srcStride[0]) * srcSliceH + 32); |
| base = srcStride[0] < 0 ? rgb0_tmp - srcStride[0] * (srcSliceH-1) : rgb0_tmp; |
| for (y=0; y<srcSliceH; y++){ |
| memcpy(base + srcStride[0]*y, src2[0] + srcStride[0]*y, 4*c->srcW); |
| for (x=c->src0Alpha-1; x<4*c->srcW; x+=4) { |
| base[ srcStride[0]*y + x] = 0xFF; |
| } |
| } |
| src2[0] = base; |
| } |
| |
| // 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((void*)dst2, c->dstFormat); |
| |
| /* reset slice direction at end of frame */ |
| if (srcSliceY + srcSliceH == c->srcH) |
| c->sliceDir = 0; |
| |
| ret = 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((void*)dst2, c->dstFormat); |
| |
| /* reset slice direction at end of frame */ |
| if (!srcSliceY) |
| c->sliceDir = 0; |
| |
| ret = c->swScale(c, src2, srcStride2, c->srcH-srcSliceY-srcSliceH, |
| srcSliceH, dst2, dstStride2); |
| } |
| |
| av_free(rgb0_tmp); |
| return ret; |
| } |
| |
| /* Convert the palette to the same packed 32-bit format as the palette */ |
| void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst, |
| int 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, |
| int 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; |
| } |
| } |