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comparison libavcodec/rectangle.h @ 9:ea1ba68cf0ed

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update to match api changes + add sscc produced source
author Nina Engelhardt <nengel@mailbox.tu-berlin.de>
date Wed, 05 Jun 2013 14:43:26 +0200
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1 /*
2 * rectangle filling function
3 * Copyright (c) 2003 Michael Niedermayer <michaelni@gmx.at>
4 *
5 * This file is part of FFmpeg.
6 *
7 * FFmpeg is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
11 *
12 * FFmpeg is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
16 *
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with FFmpeg; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
20 */
21
22 /**
23 * @file
24 * useful rectangle filling function
25 * @author Michael Niedermayer <michaelni@gmx.at>
26 */
27
28 #ifndef AVCODEC_RECTANGLE_H
29 #define AVCODEC_RECTANGLE_H
30
31 #include <assert.h>
32 //#include "config.h"
33 #include "libavutil/common.h"
34 #include "dsputil.h"
35
36 /**
37 * fill a rectangle.
38 * @param h height of the rectangle, should be a constant
39 * @param w width of the rectangle, should be a constant
40 * @param size the size of val (1, 2 or 4), should be a constant
41 */
42 static av_always_inline void fill_rectangle(void *vp, int w, int h, int stride, uint32_t val, int size){
43 uint8_t *p= (uint8_t*)vp;
44 assert(size==1 || size==2 || size==4);
45 assert(w<=4);
46
47 w *= size;
48 stride *= size;
49
50 assert((((long)vp)&(FFMIN(w, STRIDE_ALIGN)-1)) == 0);
51 assert((stride&(w-1))==0);
52 if(w==2){
53 const uint16_t v= size==4 ? val : val*0x0101;
54 *(uint16_t*)(p + 0*stride)= v;
55 if(h==1) return;
56 *(uint16_t*)(p + 1*stride)= v;
57 if(h==2) return;
58 *(uint16_t*)(p + 2*stride)= v;
59 *(uint16_t*)(p + 3*stride)= v;
60 }else if(w==4){
61 const uint32_t v= size==4 ? val : size==2 ? val*0x00010001 : val*0x01010101;
62 *(uint32_t*)(p + 0*stride)= v;
63 if(h==1) return;
64 *(uint32_t*)(p + 1*stride)= v;
65 if(h==2) return;
66 *(uint32_t*)(p + 2*stride)= v;
67 *(uint32_t*)(p + 3*stride)= v;
68 }else if(w==8){
69 const uint64_t v= size==2 ? val*0x0001000100010001ULL : val*0x0100000001ULL;
70 *(uint64_t*)(p + 0*stride)= v;
71 if(h==1) return;
72 *(uint64_t*)(p + 1*stride)= v;
73 if(h==2) return;
74 *(uint64_t*)(p + 2*stride)= v;
75 *(uint64_t*)(p + 3*stride)= v;
76 }else if(w==16){
77 const uint64_t v= val*0x0100000001ULL;
78 *(uint64_t*)(p + 0+0*stride)= v;
79 *(uint64_t*)(p + 8+0*stride)= v;
80 *(uint64_t*)(p + 0+1*stride)= v;
81 *(uint64_t*)(p + 8+1*stride)= v;
82 if(h==2) return;
83 *(uint64_t*)(p + 0+2*stride)= v;
84 *(uint64_t*)(p + 8+2*stride)= v;
85 *(uint64_t*)(p + 0+3*stride)= v;
86 *(uint64_t*)(p + 8+3*stride)= v;
87 }else
88 assert(0);
89 assert(h==4);
90 }
91
92 #endif /* AVCODEC_RECTANGLE_H */