-
Notifications
You must be signed in to change notification settings - Fork 1
/
rotate.c
65 lines (54 loc) · 1.38 KB
/
rotate.c
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
#include <rotate.h>
typedef struct _RGBA_
{
unsigned char r;
unsigned char g;
unsigned char b;
unsigned char a;
} RGBA;
void img_rotate(void * img_in, long width, long height,
long type_data,
void * img_out)
{
/*
int x,y;
double* img_64f_in = (double*)img_in, * img_64f_out = (double*)img_out;
RGBA* img_rgba_in = (RGBA*)img_in;
RGBA* img_rgba_out = (RGBA*)img_out;
if (type_data == 0)
{
for (y = 0; y < height; y++)
{
for (x = 0; x < width; x++)
{
//((double *)img_out)[(height - 1) - y + x * height] = ((double*)img_in)[x + y * width];
img_64f_out[x * height + height - 1 - y] = img_64f_in[x + y * width];
}
}
}
else if (type_data == 1)
{
for (y = 0; y < height; y++)
{
for (x = 0; x < width; x++)
{
//((double *)img_out)[(height - 1) - y + x * height] = ((double*)img_in)[x + y * width];
img_rgba_out[x * height + height - 1 - y] = img_rgba_in[x + y * width];
}
}
*/
int i, j, k, t;
unsigned char* img_uchar_in = (unsigned char*)img_in;
unsigned char* img_uchar_out = (unsigned char*)img_out;;
if (type_data == 0) t = 8; else if (type_data == 1) t = 4;
for (j = 0; j < height; j++)
{
for (i = 0; i < width; i++)
{
for (int k = 0; k < t; k++)
{
img_uchar_out[(i * height + height - 1 - j) * t + k] = img_uchar_in[(j * width + i) * t + k]; //(j * width + i) * t + k = j*width*t + i*t + k
}
}
}
}