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Diffstat (limited to 'libswscale/arm/swscale_unscaled.c')
| -rw-r--r-- | libswscale/arm/swscale_unscaled.c | 180 |
1 files changed, 180 insertions, 0 deletions
diff --git a/libswscale/arm/swscale_unscaled.c b/libswscale/arm/swscale_unscaled.c new file mode 100644 index 0000000000..e1597ab42d --- /dev/null +++ b/libswscale/arm/swscale_unscaled.c @@ -0,0 +1,180 @@ +/* + * 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" + +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; +} + +#define YUV_TO_RGB_TABLE \ + c->yuv2rgb_v2r_coeff, \ + c->yuv2rgb_u2g_coeff, \ + c->yuv2rgb_v2g_coeff, \ + c->yuv2rgb_u2b_coeff, \ + +#define DECLARE_FF_YUVX_TO_RGBX_FUNCS(ifmt, ofmt) \ +int ff_##ifmt##_to_##ofmt##_neon(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(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 }; \ + \ + ff_##ifmt##_to_##ofmt##_neon(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 >> 6, \ + c->yuv2rgb_y_coeff); \ + \ + return 0; \ +} \ + +#define DECLARE_FF_YUVX_TO_ALL_RGBX_FUNCS(yuvx) \ +DECLARE_FF_YUVX_TO_RGBX_FUNCS(yuvx, argb) \ +DECLARE_FF_YUVX_TO_RGBX_FUNCS(yuvx, rgba) \ +DECLARE_FF_YUVX_TO_RGBX_FUNCS(yuvx, abgr) \ +DECLARE_FF_YUVX_TO_RGBX_FUNCS(yuvx, bgra) \ + +DECLARE_FF_YUVX_TO_ALL_RGBX_FUNCS(yuv420p) +DECLARE_FF_YUVX_TO_ALL_RGBX_FUNCS(yuv422p) + +#define DECLARE_FF_NVX_TO_RGBX_FUNCS(ifmt, ofmt) \ +int ff_##ifmt##_to_##ofmt##_neon(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(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 }; \ + \ + ff_##ifmt##_to_##ofmt##_neon(c->srcW, srcSliceH, \ + dst[0] + srcSliceY * dstStride[0], dstStride[0], \ + src[0], srcStride[0], src[1], srcStride[1], \ + yuv2rgb_table, \ + c->yuv2rgb_y_offset >> 6, \ + c->yuv2rgb_y_coeff); \ + \ + return 0; \ +} \ + +#define DECLARE_FF_NVX_TO_ALL_RGBX_FUNCS(nvx) \ +DECLARE_FF_NVX_TO_RGBX_FUNCS(nvx, argb) \ +DECLARE_FF_NVX_TO_RGBX_FUNCS(nvx, rgba) \ +DECLARE_FF_NVX_TO_RGBX_FUNCS(nvx, abgr) \ +DECLARE_FF_NVX_TO_RGBX_FUNCS(nvx, bgra) \ + +DECLARE_FF_NVX_TO_ALL_RGBX_FUNCS(nv12) +DECLARE_FF_NVX_TO_ALL_RGBX_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; \ + } \ +} 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 (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; + } + + 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); +} |