1/* 2 * This file is part of FFmpeg. 3 * 4 * FFmpeg is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Lesser General Public 6 * License as published by the Free Software Foundation; either 7 * version 2.1 of the License, or (at your option) any later version. 8 * 9 * FFmpeg is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Lesser General Public License for more details. 13 * 14 * You should have received a copy of the GNU Lesser General Public 15 * License along with FFmpeg; if not, write to the Free Software 16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 17 */ 18 19#include "config.h" 20#include "libswscale/swscale.h" 21#include "libswscale/swscale_internal.h" 22#include "libavutil/aarch64/cpu.h" 23 24#define YUV_TO_RGB_TABLE \ 25 c->yuv2rgb_v2r_coeff, \ 26 c->yuv2rgb_u2g_coeff, \ 27 c->yuv2rgb_v2g_coeff, \ 28 c->yuv2rgb_u2b_coeff, \ 29 30#define DECLARE_FF_YUVX_TO_RGBX_FUNCS(ifmt, ofmt) \ 31int ff_##ifmt##_to_##ofmt##_neon(int w, int h, \ 32 uint8_t *dst, int linesize, \ 33 const uint8_t *srcY, int linesizeY, \ 34 const uint8_t *srcU, int linesizeU, \ 35 const uint8_t *srcV, int linesizeV, \ 36 const int16_t *table, \ 37 int y_offset, \ 38 int y_coeff); \ 39 \ 40static int ifmt##_to_##ofmt##_neon_wrapper(SwsContext *c, const uint8_t *src[], \ 41 int srcStride[], int srcSliceY, int srcSliceH, \ 42 uint8_t *dst[], int dstStride[]) { \ 43 const int16_t yuv2rgb_table[] = { YUV_TO_RGB_TABLE }; \ 44 \ 45 return ff_##ifmt##_to_##ofmt##_neon(c->srcW, srcSliceH, \ 46 dst[0] + srcSliceY * dstStride[0], dstStride[0], \ 47 src[0], srcStride[0], \ 48 src[1], srcStride[1], \ 49 src[2], srcStride[2], \ 50 yuv2rgb_table, \ 51 c->yuv2rgb_y_offset >> 6, \ 52 c->yuv2rgb_y_coeff); \ 53} \ 54 55#define DECLARE_FF_YUVX_TO_ALL_RGBX_FUNCS(yuvx) \ 56DECLARE_FF_YUVX_TO_RGBX_FUNCS(yuvx, argb) \ 57DECLARE_FF_YUVX_TO_RGBX_FUNCS(yuvx, rgba) \ 58DECLARE_FF_YUVX_TO_RGBX_FUNCS(yuvx, abgr) \ 59DECLARE_FF_YUVX_TO_RGBX_FUNCS(yuvx, bgra) \ 60 61DECLARE_FF_YUVX_TO_ALL_RGBX_FUNCS(yuv420p) 62DECLARE_FF_YUVX_TO_ALL_RGBX_FUNCS(yuv422p) 63 64#define DECLARE_FF_NVX_TO_RGBX_FUNCS(ifmt, ofmt) \ 65int ff_##ifmt##_to_##ofmt##_neon(int w, int h, \ 66 uint8_t *dst, int linesize, \ 67 const uint8_t *srcY, int linesizeY, \ 68 const uint8_t *srcC, int linesizeC, \ 69 const int16_t *table, \ 70 int y_offset, \ 71 int y_coeff); \ 72 \ 73static int ifmt##_to_##ofmt##_neon_wrapper(SwsContext *c, const uint8_t *src[], \ 74 int srcStride[], int srcSliceY, int srcSliceH, \ 75 uint8_t *dst[], int dstStride[]) { \ 76 const int16_t yuv2rgb_table[] = { YUV_TO_RGB_TABLE }; \ 77 \ 78 return ff_##ifmt##_to_##ofmt##_neon(c->srcW, srcSliceH, \ 79 dst[0] + srcSliceY * dstStride[0], dstStride[0], \ 80 src[0], srcStride[0], src[1], srcStride[1], \ 81 yuv2rgb_table, \ 82 c->yuv2rgb_y_offset >> 6, \ 83 c->yuv2rgb_y_coeff); \ 84} \ 85 86#define DECLARE_FF_NVX_TO_ALL_RGBX_FUNCS(nvx) \ 87DECLARE_FF_NVX_TO_RGBX_FUNCS(nvx, argb) \ 88DECLARE_FF_NVX_TO_RGBX_FUNCS(nvx, rgba) \ 89DECLARE_FF_NVX_TO_RGBX_FUNCS(nvx, abgr) \ 90DECLARE_FF_NVX_TO_RGBX_FUNCS(nvx, bgra) \ 91 92DECLARE_FF_NVX_TO_ALL_RGBX_FUNCS(nv12) 93DECLARE_FF_NVX_TO_ALL_RGBX_FUNCS(nv21) 94 95/* We need a 16 pixel width alignment. This constraint can easily be removed 96 * for input reading but for the output which is 4-bytes per pixel (RGBA) the 97 * assembly might be writing as much as 4*15=60 extra bytes at the end of the 98 * line, which won't fit the 32-bytes buffer alignment. */ 99#define SET_FF_NVX_TO_RGBX_FUNC(ifmt, IFMT, ofmt, OFMT, accurate_rnd) do { \ 100 if (c->srcFormat == AV_PIX_FMT_##IFMT \ 101 && c->dstFormat == AV_PIX_FMT_##OFMT \ 102 && !(c->srcH & 1) \ 103 && !(c->srcW & 15) \ 104 && !accurate_rnd) \ 105 c->convert_unscaled = ifmt##_to_##ofmt##_neon_wrapper; \ 106} while (0) 107 108#define SET_FF_NVX_TO_ALL_RGBX_FUNC(nvx, NVX, accurate_rnd) do { \ 109 SET_FF_NVX_TO_RGBX_FUNC(nvx, NVX, argb, ARGB, accurate_rnd); \ 110 SET_FF_NVX_TO_RGBX_FUNC(nvx, NVX, rgba, RGBA, accurate_rnd); \ 111 SET_FF_NVX_TO_RGBX_FUNC(nvx, NVX, abgr, ABGR, accurate_rnd); \ 112 SET_FF_NVX_TO_RGBX_FUNC(nvx, NVX, bgra, BGRA, accurate_rnd); \ 113} while (0) 114 115static void get_unscaled_swscale_neon(SwsContext *c) { 116 int accurate_rnd = c->flags & SWS_ACCURATE_RND; 117 118 SET_FF_NVX_TO_ALL_RGBX_FUNC(nv12, NV12, accurate_rnd); 119 SET_FF_NVX_TO_ALL_RGBX_FUNC(nv21, NV21, accurate_rnd); 120 SET_FF_NVX_TO_ALL_RGBX_FUNC(yuv420p, YUV420P, accurate_rnd); 121 SET_FF_NVX_TO_ALL_RGBX_FUNC(yuv422p, YUV422P, accurate_rnd); 122} 123 124void ff_get_unscaled_swscale_aarch64(SwsContext *c) 125{ 126 int cpu_flags = av_get_cpu_flags(); 127 if (have_neon(cpu_flags)) 128 get_unscaled_swscale_neon(c); 129} 130