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
|
#include "eglcommon.h"
#include <VG/openvg.h>
#include <math.h>
#include <stdlib.h>
#include <stdio.h>
const VGfloat white_color[4] = {1.0, 1.0, 1.0, 1.0};
const VGfloat color[4] = {1.0, 1.0, 1.0, 0.5};
VGfloat clearColor[] = {1.0f, 0.0f, 0.0f, 1.0f};/* red color */
VGImage parent;
VGPaint fill;
static void
init(void)
{
VGImage child1, child2;
VGubyte *data;
VGuint LUT[256];
VGint i;
data = (VGubyte *)malloc(sizeof(VGubyte)*window_width()*window_height());
for (i=0;i<window_width()*window_height();i++) {
data[i] = 0x00;
}
for (i=0; i<256; i++) {
if ( i == 0 )
LUT[0] = 0xFFFFFFFF;
else
LUT[i] = 0xFF00FFFF;
}
parent = vgCreateImage( VG_A_8, 64, 64, VG_IMAGE_QUALITY_NONANTIALIASED );
vgImageSubData(parent, data, window_width(), VG_A_8, 0, 0,
window_width(), window_height());
child1 = vgChildImage(parent, 0, 0, 32, 64);
child2 = vgChildImage(parent, 32, 0, 32, 64);
vgLookupSingle(child2, child1, LUT, VG_GREEN, VG_FALSE, VG_TRUE);
}
/* new window size or exposure */
static void
reshape(int w, int h)
{
}
static void
draw(void)
{
vgSetfv(VG_CLEAR_COLOR, 4, clearColor);
vgClear(0, 0, window_width(), window_height());
//vgSeti(VG_MATRIX_MODE, VG_MATRIX_IMAGE_USER_TO_SURFACE);
//vgLoadIdentity();
//vgTranslate(10, 10);
vgDrawImage(parent);
vgFlush();
}
int main(int argc, char **argv)
{
set_window_size(64, 64);
return run(argc, argv, init, reshape,
draw, 0);
}
|
