| /* |
| * Copyright (C) 2013 Xiaolei Yu <dreifachstein@gmail.com> |
| * |
| * 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 "config.h" |
| #include "libswscale/swscale.h" |
| #include "libswscale/swscale_internal.h" |
| #include "libavutil/arm/cpu.h" |
| |
| #if 0 |
| extern void rgbx_to_nv12_neon_32(const uint8_t *src, uint8_t *y, uint8_t *chroma, |
| int width, int height, |
| int y_stride, int c_stride, int src_stride, |
| int32_t coeff_tbl[9]); |
| |
| extern void rgbx_to_nv12_neon_16(const uint8_t *src, uint8_t *y, uint8_t *chroma, |
| int width, int height, |
| int y_stride, int c_stride, int src_stride, |
| int32_t coeff_tbl[9]); |
| |
| static int rgbx_to_nv12_neon_32_wrapper(SwsContext *context, const uint8_t *src[], |
| int srcStride[], int srcSliceY, int srcSliceH, |
| uint8_t *dst[], int dstStride[]) { |
| |
| rgbx_to_nv12_neon_32(src[0] + srcSliceY * srcStride[0], |
| dst[0] + srcSliceY * dstStride[0], |
| dst[1] + (srcSliceY / 2) * dstStride[1], |
| context->srcW, srcSliceH, |
| dstStride[0], dstStride[1], srcStride[0], |
| context->input_rgb2yuv_table); |
| |
| return 0; |
| } |
| |
| static int rgbx_to_nv12_neon_16_wrapper(SwsContext *context, const uint8_t *src[], |
| int srcStride[], int srcSliceY, int srcSliceH, |
| uint8_t *dst[], int dstStride[]) { |
| |
| rgbx_to_nv12_neon_16(src[0] + srcSliceY * srcStride[0], |
| dst[0] + srcSliceY * dstStride[0], |
| dst[1] + (srcSliceY / 2) * dstStride[1], |
| context->srcW, srcSliceH, |
| dstStride[0], dstStride[1], srcStride[0], |
| context->input_rgb2yuv_table); |
| |
| return 0; |
| } |
| #endif |
| |
| #define YUV_TO_RGB_TABLE(precision) \ |
| c->yuv2rgb_v2r_coeff / ((precision) == 16 ? 1 << 7 : 1), \ |
| c->yuv2rgb_u2g_coeff / ((precision) == 16 ? 1 << 7 : 1), \ |
| c->yuv2rgb_v2g_coeff / ((precision) == 16 ? 1 << 7 : 1), \ |
| c->yuv2rgb_u2b_coeff / ((precision) == 16 ? 1 << 7 : 1), \ |
| |
| #define DECLARE_FF_YUVX_TO_RGBX_FUNCS(ifmt, ofmt, precision) \ |
| int ff_##ifmt##_to_##ofmt##_neon_##precision(int w, int h, \ |
| uint8_t *dst, int linesize, \ |
| const uint8_t *srcY, int linesizeY, \ |
| const uint8_t *srcU, int linesizeU, \ |
| const uint8_t *srcV, int linesizeV, \ |
| const int16_t *table, \ |
| int y_offset, \ |
| int y_coeff); \ |
| \ |
| static int ifmt##_to_##ofmt##_neon_wrapper_##precision(SwsContext *c, const uint8_t *src[], \ |
| int srcStride[], int srcSliceY, int srcSliceH, \ |
| uint8_t *dst[], int dstStride[]) { \ |
| const int16_t yuv2rgb_table[] = { YUV_TO_RGB_TABLE(precision) }; \ |
| \ |
| ff_##ifmt##_to_##ofmt##_neon_##precision(c->srcW, srcSliceH, \ |
| dst[0] + srcSliceY * dstStride[0], dstStride[0], \ |
| src[0], srcStride[0], \ |
| src[1], srcStride[1], \ |
| src[2], srcStride[2], \ |
| yuv2rgb_table, \ |
| c->yuv2rgb_y_offset >> 9, \ |
| c->yuv2rgb_y_coeff / ((precision) == 16 ? 1 << 7 : 1)); \ |
| \ |
| return 0; \ |
| } \ |
| |
| #define DECLARE_FF_YUVX_TO_ALL_RGBX_FUNCS(yuvx, precision) \ |
| DECLARE_FF_YUVX_TO_RGBX_FUNCS(yuvx, argb, precision) \ |
| DECLARE_FF_YUVX_TO_RGBX_FUNCS(yuvx, rgba, precision) \ |
| DECLARE_FF_YUVX_TO_RGBX_FUNCS(yuvx, abgr, precision) \ |
| DECLARE_FF_YUVX_TO_RGBX_FUNCS(yuvx, bgra, precision) \ |
| |
| #define DECLARE_FF_YUVX_TO_ALL_RGBX_ALL_PRECISION_FUNCS(yuvx) \ |
| DECLARE_FF_YUVX_TO_ALL_RGBX_FUNCS(yuvx, 16) \ |
| |
| DECLARE_FF_YUVX_TO_ALL_RGBX_ALL_PRECISION_FUNCS(yuv420p) |
| DECLARE_FF_YUVX_TO_ALL_RGBX_ALL_PRECISION_FUNCS(yuv422p) |
| |
| #define DECLARE_FF_NVX_TO_RGBX_FUNCS(ifmt, ofmt, precision) \ |
| int ff_##ifmt##_to_##ofmt##_neon_##precision(int w, int h, \ |
| uint8_t *dst, int linesize, \ |
| const uint8_t *srcY, int linesizeY, \ |
| const uint8_t *srcC, int linesizeC, \ |
| const int16_t *table, \ |
| int y_offset, \ |
| int y_coeff); \ |
| \ |
| static int ifmt##_to_##ofmt##_neon_wrapper_##precision(SwsContext *c, const uint8_t *src[], \ |
| int srcStride[], int srcSliceY, int srcSliceH, \ |
| uint8_t *dst[], int dstStride[]) { \ |
| const int16_t yuv2rgb_table[] = { YUV_TO_RGB_TABLE(precision) }; \ |
| \ |
| ff_##ifmt##_to_##ofmt##_neon_##precision(c->srcW, srcSliceH, \ |
| dst[0] + srcSliceY * dstStride[0], dstStride[0], \ |
| src[0], srcStride[0], src[1], srcStride[1], \ |
| yuv2rgb_table, \ |
| c->yuv2rgb_y_offset >> 9, \ |
| c->yuv2rgb_y_coeff / ((precision) == 16 ? 1 << 7 : 1)); \ |
| \ |
| return 0; \ |
| } \ |
| |
| #define DECLARE_FF_NVX_TO_ALL_RGBX_FUNCS(nvx, precision) \ |
| DECLARE_FF_NVX_TO_RGBX_FUNCS(nvx, argb, precision) \ |
| DECLARE_FF_NVX_TO_RGBX_FUNCS(nvx, rgba, precision) \ |
| DECLARE_FF_NVX_TO_RGBX_FUNCS(nvx, abgr, precision) \ |
| DECLARE_FF_NVX_TO_RGBX_FUNCS(nvx, bgra, precision) \ |
| |
| #define DECLARE_FF_NVX_TO_ALL_RGBX_ALL_PRECISION_FUNCS(nvx) \ |
| DECLARE_FF_NVX_TO_ALL_RGBX_FUNCS(nvx, 16) \ |
| |
| DECLARE_FF_NVX_TO_ALL_RGBX_ALL_PRECISION_FUNCS(nv12) |
| DECLARE_FF_NVX_TO_ALL_RGBX_ALL_PRECISION_FUNCS(nv21) |
| |
| /* We need a 16 pixel width alignment. This constraint can easily be removed |
| * for input reading but for the output which is 4-bytes per pixel (RGBA) the |
| * assembly might be writing as much as 4*15=60 extra bytes at the end of the |
| * line, which won't fit the 32-bytes buffer alignment. */ |
| #define SET_FF_NVX_TO_RGBX_FUNC(ifmt, IFMT, ofmt, OFMT, accurate_rnd) do { \ |
| if (c->srcFormat == AV_PIX_FMT_##IFMT \ |
| && c->dstFormat == AV_PIX_FMT_##OFMT \ |
| && !(c->srcH & 1) \ |
| && !(c->srcW & 15) \ |
| && !accurate_rnd) { \ |
| c->swscale = ifmt##_to_##ofmt##_neon_wrapper_16; \ |
| } \ |
| } while (0) |
| |
| #define SET_FF_NVX_TO_ALL_RGBX_FUNC(nvx, NVX, accurate_rnd) do { \ |
| SET_FF_NVX_TO_RGBX_FUNC(nvx, NVX, argb, ARGB, accurate_rnd); \ |
| SET_FF_NVX_TO_RGBX_FUNC(nvx, NVX, rgba, RGBA, accurate_rnd); \ |
| SET_FF_NVX_TO_RGBX_FUNC(nvx, NVX, abgr, ABGR, accurate_rnd); \ |
| SET_FF_NVX_TO_RGBX_FUNC(nvx, NVX, bgra, BGRA, accurate_rnd); \ |
| } while (0) |
| |
| static void get_unscaled_swscale_neon(SwsContext *c) { |
| int accurate_rnd = c->flags & SWS_ACCURATE_RND; |
| #if 0 |
| if (c->srcFormat == AV_PIX_FMT_RGBA |
| && c->dstFormat == AV_PIX_FMT_NV12 |
| && (c->srcW >= 16)) { |
| c->swscale = accurate_rnd ? rgbx_to_nv12_neon_32_wrapper |
| : rgbx_to_nv12_neon_16_wrapper; |
| } |
| #endif |
| |
| SET_FF_NVX_TO_ALL_RGBX_FUNC(nv12, NV12, accurate_rnd); |
| SET_FF_NVX_TO_ALL_RGBX_FUNC(nv21, NV21, accurate_rnd); |
| SET_FF_NVX_TO_ALL_RGBX_FUNC(yuv420p, YUV420P, accurate_rnd); |
| SET_FF_NVX_TO_ALL_RGBX_FUNC(yuv422p, YUV422P, accurate_rnd); |
| } |
| |
| void ff_get_unscaled_swscale_arm(SwsContext *c) |
| { |
| int cpu_flags = av_get_cpu_flags(); |
| if (have_neon(cpu_flags)) |
| get_unscaled_swscale_neon(c); |
| } |
