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67adb30322
And preserve the public SwsContext as separate name. The motivation here is that I want to turn SwsContext into a public struct, while keeping the internal implementation hidden. Additionally, I also want to be able to use multiple internal implementations, e.g. for GPU devices. This commit does not include any functional changes. For the most part, it is a simple rename. The only complications arise from the public facing API functions, which preserve their current type (and hence require an additional unwrapping step internally), and the checkasm test framework, which directly accesses SwsInternal. For consistency, the affected functions that need to maintain a distionction have generally been changed to refer to the SwsContext as *sws, and the SwsInternal as *c. In an upcoming commit, I will provide a backing definition for the public SwsContext, and update `sws_internal()` to dereference the internal struct instead of merely casting it. Sponsored-by: Sovereign Tech Fund Signed-off-by: Niklas Haas <git@haasn.dev>
189 lines
11 KiB
C
189 lines
11 KiB
C
/*
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* Copyright (C) 2013 Xiaolei Yu <dreifachstein@gmail.com>
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*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "config.h"
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#include "libswscale/swscale.h"
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#include "libswscale/swscale_internal.h"
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#include "libavutil/arm/cpu.h"
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#if HAVE_AS_DN_DIRECTIVE
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extern void rgbx_to_nv12_neon_32(const uint8_t *src, uint8_t *y, uint8_t *chroma,
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int width, int height,
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int y_stride, int c_stride, int src_stride,
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int32_t coeff_tbl[9]);
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extern void rgbx_to_nv12_neon_16(const uint8_t *src, uint8_t *y, uint8_t *chroma,
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int width, int height,
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int y_stride, int c_stride, int src_stride,
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int32_t coeff_tbl[9]);
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static int rgbx_to_nv12_neon_32_wrapper(SwsInternal *context, const uint8_t *const src[],
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const int srcStride[], int srcSliceY, int srcSliceH,
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uint8_t *const dst[], const int dstStride[]) {
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rgbx_to_nv12_neon_32(src[0] + srcSliceY * srcStride[0],
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dst[0] + srcSliceY * dstStride[0],
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dst[1] + (srcSliceY / 2) * dstStride[1],
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context->srcW, srcSliceH,
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dstStride[0], dstStride[1], srcStride[0],
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context->input_rgb2yuv_table);
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return 0;
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}
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static int rgbx_to_nv12_neon_16_wrapper(SwsInternal *context, const uint8_t *const src[],
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const int srcStride[], int srcSliceY, int srcSliceH,
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uint8_t *const dst[], int dstStride[]) {
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rgbx_to_nv12_neon_16(src[0] + srcSliceY * srcStride[0],
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dst[0] + srcSliceY * dstStride[0],
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dst[1] + (srcSliceY / 2) * dstStride[1],
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context->srcW, srcSliceH,
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dstStride[0], dstStride[1], srcStride[0],
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context->input_rgb2yuv_table);
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return 0;
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}
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#define YUV_TO_RGB_TABLE \
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c->yuv2rgb_v2r_coeff, \
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c->yuv2rgb_u2g_coeff, \
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c->yuv2rgb_v2g_coeff, \
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c->yuv2rgb_u2b_coeff, \
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#define DECLARE_FF_YUVX_TO_RGBX_FUNCS(ifmt, ofmt) \
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int ff_##ifmt##_to_##ofmt##_neon(int w, int h, \
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uint8_t *dst, int linesize, \
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const uint8_t *srcY, int linesizeY, \
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const uint8_t *srcU, int linesizeU, \
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const uint8_t *srcV, int linesizeV, \
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const int16_t *table, \
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int y_offset, \
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int y_coeff); \
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\
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static int ifmt##_to_##ofmt##_neon_wrapper(SwsInternal *c, const uint8_t *const src[], \
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const int srcStride[], int srcSliceY, \
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int srcSliceH, uint8_t *const dst[], \
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const int dstStride[]) { \
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const int16_t yuv2rgb_table[] = { YUV_TO_RGB_TABLE }; \
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\
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ff_##ifmt##_to_##ofmt##_neon(c->srcW, srcSliceH, \
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dst[0] + srcSliceY * dstStride[0], dstStride[0], \
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src[0], srcStride[0], \
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src[1], srcStride[1], \
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src[2], srcStride[2], \
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yuv2rgb_table, \
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c->yuv2rgb_y_offset >> 6, \
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c->yuv2rgb_y_coeff); \
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\
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return 0; \
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} \
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#define DECLARE_FF_YUVX_TO_ALL_RGBX_FUNCS(yuvx) \
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DECLARE_FF_YUVX_TO_RGBX_FUNCS(yuvx, argb) \
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DECLARE_FF_YUVX_TO_RGBX_FUNCS(yuvx, rgba) \
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DECLARE_FF_YUVX_TO_RGBX_FUNCS(yuvx, abgr) \
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DECLARE_FF_YUVX_TO_RGBX_FUNCS(yuvx, bgra) \
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DECLARE_FF_YUVX_TO_ALL_RGBX_FUNCS(yuv420p)
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DECLARE_FF_YUVX_TO_ALL_RGBX_FUNCS(yuv422p)
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#define DECLARE_FF_NVX_TO_RGBX_FUNCS(ifmt, ofmt) \
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int ff_##ifmt##_to_##ofmt##_neon(int w, int h, \
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uint8_t *dst, int linesize, \
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const uint8_t *srcY, int linesizeY, \
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const uint8_t *srcC, int linesizeC, \
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const int16_t *table, \
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int y_offset, \
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int y_coeff); \
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\
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static int ifmt##_to_##ofmt##_neon_wrapper(SwsInternal *c, const uint8_t *const src[], \
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const int srcStride[], int srcSliceY, \
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int srcSliceH, uint8_t *const dst[], \
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const int dstStride[]) { \
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const int16_t yuv2rgb_table[] = { YUV_TO_RGB_TABLE }; \
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\
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ff_##ifmt##_to_##ofmt##_neon(c->srcW, srcSliceH, \
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dst[0] + srcSliceY * dstStride[0], dstStride[0], \
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src[0], srcStride[0], src[1], srcStride[1], \
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yuv2rgb_table, \
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c->yuv2rgb_y_offset >> 6, \
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c->yuv2rgb_y_coeff); \
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\
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return 0; \
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} \
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#define DECLARE_FF_NVX_TO_ALL_RGBX_FUNCS(nvx) \
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DECLARE_FF_NVX_TO_RGBX_FUNCS(nvx, argb) \
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DECLARE_FF_NVX_TO_RGBX_FUNCS(nvx, rgba) \
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DECLARE_FF_NVX_TO_RGBX_FUNCS(nvx, abgr) \
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DECLARE_FF_NVX_TO_RGBX_FUNCS(nvx, bgra) \
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DECLARE_FF_NVX_TO_ALL_RGBX_FUNCS(nv12)
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DECLARE_FF_NVX_TO_ALL_RGBX_FUNCS(nv21)
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/* We need a 16 pixel width alignment. This constraint can easily be removed
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* for input reading but for the output which is 4-bytes per pixel (RGBA) the
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* assembly might be writing as much as 4*15=60 extra bytes at the end of the
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* line, which won't fit the 32-bytes buffer alignment. */
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#define SET_FF_NVX_TO_RGBX_FUNC(ifmt, IFMT, ofmt, OFMT, accurate_rnd) do { \
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if (c->srcFormat == AV_PIX_FMT_##IFMT \
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&& c->dstFormat == AV_PIX_FMT_##OFMT \
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&& !(c->srcH & 1) \
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&& !(c->srcW & 15) \
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&& !accurate_rnd) { \
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c->convert_unscaled = ifmt##_to_##ofmt##_neon_wrapper; \
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} \
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} while (0)
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#define SET_FF_NVX_TO_ALL_RGBX_FUNC(nvx, NVX, accurate_rnd) do { \
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SET_FF_NVX_TO_RGBX_FUNC(nvx, NVX, argb, ARGB, accurate_rnd); \
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SET_FF_NVX_TO_RGBX_FUNC(nvx, NVX, rgba, RGBA, accurate_rnd); \
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SET_FF_NVX_TO_RGBX_FUNC(nvx, NVX, abgr, ABGR, accurate_rnd); \
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SET_FF_NVX_TO_RGBX_FUNC(nvx, NVX, bgra, BGRA, accurate_rnd); \
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} while (0)
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static void get_unscaled_swscale_neon(SwsInternal *c) {
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int accurate_rnd = c->flags & SWS_ACCURATE_RND;
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if (c->srcFormat == AV_PIX_FMT_RGBA
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&& c->dstFormat == AV_PIX_FMT_NV12
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&& (c->srcW >= 16)) {
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c->convert_unscaled = accurate_rnd ? rgbx_to_nv12_neon_32_wrapper
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: rgbx_to_nv12_neon_16_wrapper;
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}
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SET_FF_NVX_TO_ALL_RGBX_FUNC(nv12, NV12, accurate_rnd);
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SET_FF_NVX_TO_ALL_RGBX_FUNC(nv21, NV21, accurate_rnd);
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SET_FF_NVX_TO_ALL_RGBX_FUNC(yuv420p, YUV420P, accurate_rnd);
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SET_FF_NVX_TO_ALL_RGBX_FUNC(yuv422p, YUV422P, accurate_rnd);
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}
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void ff_get_unscaled_swscale_arm(SwsInternal *c)
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{
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int cpu_flags = av_get_cpu_flags();
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if (have_neon(cpu_flags))
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get_unscaled_swscale_neon(c);
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}
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#else
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void ff_get_unscaled_swscale_arm(SwsInternal *c)
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{
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}
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#endif
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