blob: 674b4dd365c36c5d0d887ea117bf29cae41539bb (
plain)
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
|
#include "native.h"
#include "endianutils.h"
#define MAIN_TYPE BlitType
#include "macros.h"
#define memcpy MemMove
UInt32 Display_blit(void *userData68KP) {
// import variables
SETPTR (uint8 *, dstBuf )
SETPTR (const uint8 *, srcBuf )
SET16 (uint16, dstPitch )
SET16 (uint16, srcPitch )
SET16 (uint16, w )
SET16 (uint16, h )
SET8 (bool, xflip )
SET8 (bool, masked )
// end of import
if (!masked) { // Unmasked always unflipped
while (h--) {
memcpy(dstBuf, srcBuf, w);
srcBuf += srcPitch;
dstBuf += dstPitch;
}
} else if (!xflip) { // Masked bitmap unflipped
while (h--) {
for(int i = 0; i < w; ++i) {
uint8 b = *(srcBuf + i);
if(b != 0) {
*(dstBuf + i) = b;
}
}
srcBuf += srcPitch;
dstBuf += dstPitch;
}
} else { // Masked bitmap flipped
while (h--) {
for(int i = 0; i < w; ++i) {
uint8 b = *(srcBuf + i);
if(b != 0) {
*(dstBuf - i) = b;
}
}
srcBuf += srcPitch;
dstBuf += dstPitch;
}
}
return 0;
}
|
