/*
  * Copyright (c) 2016 Ronald S. Bultje <rsbultje@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 "colorspacedsp.h"
 

 /*
  * SS_W/H stands for "subsampling_w/h"
  * it's analogous to AVPixFmtDescriptor->log2_chroma_w/h.
  */

 #define SS_W 0
 #define SS_H 0
 
 #define BIT_DEPTH 8
 #include "colorspacedsp_template.c"
 
 #undef BIT_DEPTH
 #define BIT_DEPTH 10
 #include "colorspacedsp_template.c"
 
 #undef BIT_DEPTH
 #define BIT_DEPTH 12
 #include "colorspacedsp_template.c"
 
 #undef SS_W
 #undef SS_H
 
 #define SS_W 1
 #define SS_H 0
 
 #undef BIT_DEPTH
 #define BIT_DEPTH 8
 #include "colorspacedsp_template.c"
 
 #undef BIT_DEPTH
 #define BIT_DEPTH 10
 #include "colorspacedsp_template.c"
 
 #undef BIT_DEPTH
 #define BIT_DEPTH 12
 #include "colorspacedsp_template.c"
 
 #undef SS_W
 #undef SS_H
 
 #define SS_W 1
 #define SS_H 1
 
 #undef BIT_DEPTH
 #define BIT_DEPTH 8
 #include "colorspacedsp_template.c"
 
 #undef BIT_DEPTH
 #define BIT_DEPTH 10
 #include "colorspacedsp_template.c"
 
 #undef BIT_DEPTH
 #define BIT_DEPTH 12
 #include "colorspacedsp_template.c"
 
 static void multiply3x3_c(int16_t *buf[3], ptrdiff_t stride,
                           int w, int h, const int16_t m[3][3][8])
 {
     int y, x;
     int16_t *buf0 = buf[0], *buf1 = buf[1], *buf2 = buf[2];
 
     for (y = 0; y < h; y++) {
         for (x = 0; x < w; x++) {
             int v0 = buf0[x], v1 = buf1[x], v2 = buf2[x];
 
             buf0[x] = av_clip_int16((m[0][0][0] * v0 + m[0][1][0] * v1 +
                                      m[0][2][0] * v2 + 8192) >> 14);
             buf1[x] = av_clip_int16((m[1][0][0] * v0 + m[1][1][0] * v1 +
                                      m[1][2][0] * v2 + 8192) >> 14);
             buf2[x] = av_clip_int16((m[2][0][0] * v0 + m[2][1][0] * v1 +
                                      m[2][2][0] * v2 + 8192) >> 14);
         }
 
         buf0 += stride;
         buf1 += stride;
         buf2 += stride;
     }
 }
 
 void ff_colorspacedsp_init(ColorSpaceDSPContext *dsp)
 {

 #define init_yuv2rgb_fn(bit) \
     dsp->yuv2rgb[BPP_##bit][SS_444] = yuv2rgb_444p##bit##_c; \
     dsp->yuv2rgb[BPP_##bit][SS_422] = yuv2rgb_422p##bit##_c; \
     dsp->yuv2rgb[BPP_##bit][SS_420] = yuv2rgb_420p##bit##_c
 
     init_yuv2rgb_fn( 8);
     init_yuv2rgb_fn(10);
     init_yuv2rgb_fn(12);
 
 #define init_rgb2yuv_fn(bit) \
     dsp->rgb2yuv[BPP_##bit][SS_444] = rgb2yuv_444p##bit##_c; \
     dsp->rgb2yuv[BPP_##bit][SS_422] = rgb2yuv_422p##bit##_c; \
     dsp->rgb2yuv[BPP_##bit][SS_420] = rgb2yuv_420p##bit##_c
 
     init_rgb2yuv_fn( 8);
     init_rgb2yuv_fn(10);
     init_rgb2yuv_fn(12);
 
 #define init_rgb2yuv_fsb_fn(bit) \
     dsp->rgb2yuv_fsb[BPP_##bit][SS_444] = rgb2yuv_fsb_444p##bit##_c; \
     dsp->rgb2yuv_fsb[BPP_##bit][SS_422] = rgb2yuv_fsb_422p##bit##_c; \
     dsp->rgb2yuv_fsb[BPP_##bit][SS_420] = rgb2yuv_fsb_420p##bit##_c
 
     init_rgb2yuv_fsb_fn( 8);
     init_rgb2yuv_fsb_fn(10);
     init_rgb2yuv_fsb_fn(12);
 
 #define init_yuv2yuv_fn(idx1, bit1, bit2) \
     dsp->yuv2yuv[idx1][BPP_##bit2][SS_444] = yuv2yuv_444p##bit1##to##bit2##_c; \
     dsp->yuv2yuv[idx1][BPP_##bit2][SS_422] = yuv2yuv_422p##bit1##to##bit2##_c; \
     dsp->yuv2yuv[idx1][BPP_##bit2][SS_420] = yuv2yuv_420p##bit1##to##bit2##_c
 #define init_yuv2yuv_fns(bit1) \
     init_yuv2yuv_fn(BPP_##bit1, bit1,  8); \
     init_yuv2yuv_fn(BPP_##bit1, bit1, 10); \
     init_yuv2yuv_fn(BPP_##bit1, bit1, 12)
 
     init_yuv2yuv_fns( 8);
     init_yuv2yuv_fns(10);
     init_yuv2yuv_fns(12);

 
     dsp->multiply3x3 = multiply3x3_c;

 
     if (ARCH_X86)
         ff_colorspacedsp_x86_init(dsp);

 }