1/*
2 * software YUV to RGB converter using mediaLib
3 *
4 * Copyright (C) 2003 Michael Niedermayer <michaelni@gmx.at>
5 *
6 * This file is part of FFmpeg.
7 *
8 * FFmpeg is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * FFmpeg is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with FFmpeg; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 */
22
23#include <mlib_types.h>
24#include <mlib_status.h>
25#include <mlib_sys.h>
26#include <mlib_video.h>
27#include <inttypes.h>
28#include <stdlib.h>
29#include <assert.h>
30
31#include "swscale.h"
32
33static int mlib_YUV2ARGB420_32(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
34                               int srcSliceH, uint8_t* dst[], int dstStride[]){
35    if(c->srcFormat == PIX_FMT_YUV422P){
36        srcStride[1] *= 2;
37        srcStride[2] *= 2;
38    }
39
40    assert(srcStride[1] == srcStride[2]);
41
42    mlib_VideoColorYUV2ARGB420(dst[0]+srcSliceY*dstStride[0], src[0], src[1], src[2], c->dstW,
43                               srcSliceH, dstStride[0], srcStride[0], srcStride[1]);
44    return srcSliceH;
45}
46
47static int mlib_YUV2ABGR420_32(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
48                               int srcSliceH, uint8_t* dst[], int dstStride[]){
49    if(c->srcFormat == PIX_FMT_YUV422P){
50        srcStride[1] *= 2;
51        srcStride[2] *= 2;
52    }
53
54    assert(srcStride[1] == srcStride[2]);
55
56    mlib_VideoColorYUV2ABGR420(dst[0]+srcSliceY*dstStride[0], src[0], src[1], src[2], c->dstW,
57                               srcSliceH, dstStride[0], srcStride[0], srcStride[1]);
58    return srcSliceH;
59}
60
61static int mlib_YUV2RGB420_24(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY,
62                              int srcSliceH, uint8_t* dst[], int dstStride[]){
63    if(c->srcFormat == PIX_FMT_YUV422P){
64        srcStride[1] *= 2;
65        srcStride[2] *= 2;
66    }
67
68    assert(srcStride[1] == srcStride[2]);
69
70    mlib_VideoColorYUV2RGB420(dst[0]+srcSliceY*dstStride[0], src[0], src[1], src[2], c->dstW,
71                              srcSliceH, dstStride[0], srcStride[0], srcStride[1]);
72    return srcSliceH;
73}
74
75
76SwsFunc sws_yuv2rgb_init_mlib(SwsContext *c)
77{
78    switch(c->dstFormat){
79    case PIX_FMT_RGB24: return mlib_YUV2RGB420_24;
80    case PIX_FMT_BGR32: return mlib_YUV2ARGB420_32;
81    case PIX_FMT_RGB32: return mlib_YUV2ABGR420_32;
82    default: return NULL;
83    }
84}
85
86