1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
/*********************************************************************************
* recordMyDesktop *
**********************************************************************************
* *
* Copyright (C) 2006 John Varouhakis *
* *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
* This program 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 General Public License for more details. *
* *
* You should have received a copy of the GNU General Public License *
* along with this program; if not, write to the Free Software *
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA *
* *
* *
* *
* For further information contact me at biocrasher@gmail.com *
**********************************************************************************/
#include <recordmydesktop.h>
void XImageToYUV(XImage *imgz,yuv_buffer *yuv){
unsigned char *dtap=(unsigned char *)imgz->data;
int i,k,j=0;
for(k=0;k<(imgz->width*imgz->height);k++){
yuv->y[k]=min(abs(dtap[(k*4)+2] * 2104 + dtap[(k*4)+1] * 4130 + dtap[(k*4)] * 802 + 4096 + 131072) >> 13, 235);
}
for(i=0;i<(imgz->height);i+=2){
for(k=0;k<(imgz->width);k+=2){
yuv->u[j]=min(abs(dtap[i*imgz->bytes_per_line+k*4+2] * -1214 + dtap[i*imgz->bytes_per_line+k*4+1] * -2384 + dtap[i*imgz->bytes_per_line+k*4] * 3598 + 4096 + 1048576) >> 13, 240);
yuv->v[j]=min(abs(dtap[i*imgz->bytes_per_line+k*4+2] * 3598 + dtap[i*imgz->bytes_per_line+k*4+1] * -3013 + dtap[i*imgz->bytes_per_line+k*4] * -585 + 4096 + 1048576) >> 13, 240);
j++;
}
}
}
void UpdateYUVBufferSh(yuv_buffer *yuv,unsigned char *data,int x,int y,int width,int height){
int i,k;
for(k=y;k<y+height;k++){
for(i=x;i<x+width;i++){
yuv->y[i+k*yuv->y_width]=min(abs(data[(i+k*yuv->y_width)*4+2] * 2104 + data[(i+k*yuv->y_width)*4+1] * 4130 + data[(i+k*yuv->y_width)*4] * 802 + 4096 + 131072) >> 13, 235);
if((k%2)&&(i%2)){
yuv->u[i/2+k/2*yuv->uv_width]=min(abs(data[(i+k*yuv->y_width)*4+2] * -1214 + data[(i+k*yuv->y_width)*4+1] * -2384 + data[(i+k*yuv->y_width)*4] * 3598 + 4096 + 1048576) >> 13, 240);
yuv->v[i/2+k/2*yuv->uv_width]=min(abs(data[(i+k*yuv->y_width)*4+2] * 3598 + data[(i+k*yuv->y_width)*4+1] * -3013 + data[(i+k*yuv->y_width)*4] * -585 + 4096 + 1048576) >> 13, 240);
}
}
}
}
void UpdateYUVBufferIm(yuv_buffer *yuv,unsigned char *data,int x,int y,int width,int height){
int i,k,j=0;
int x_2=x/2,y_2=y/2,y_width_2=yuv->y_width/2;
for(k=0;k<height;k++){
for(i=0;i<width;i++){
yuv->y[x+i+(k+y)*yuv->y_width]=min(abs(data[(j*4)+2] * 2104 + data[(j*4)+1] * 4130 + data[(j*4)] * 802 + 4096 + 131072) >> 13, 235);
if((k%2)&&(i%2)){
yuv->u[x_2+i/2+(k/2+y_2)*y_width_2]=min(abs(data[(k*width+i)*4+2] * -1214 + data[(k*width+i)*4+1] * -2384 + data[(k*width+i)*4] * 3598 + 4096 + 1048576) >> 13, 240);
yuv->v[x_2+i/2+(k/2+y_2)*y_width_2]=min(abs(data[(k*width+i)*4+2] * 3598 + data[(k*width+i)*4+1] * -3013 + data[(k*width+i)*4] * -585 + 4096 + 1048576) >> 13, 240);
}
j++;
}
}
}
|
