mirror of
https://github.com/isometimes/rpi4-osdev
synced 2024-11-08 19:30:39 +00:00
39 lines
782 B
C
39 lines
782 B
C
#include "../include/wgt.h"
|
|
#include "../include/mem.h"
|
|
|
|
block wloadblock (unsigned char *data)
|
|
{
|
|
block ptr;
|
|
block orig = NULL;
|
|
|
|
short *shortdata = (short *)data;
|
|
unsigned int width, height, size;
|
|
|
|
if (data == NULL) {
|
|
return NULL;
|
|
}
|
|
|
|
width = *shortdata;
|
|
shortdata ++;
|
|
data += 2;
|
|
height = *shortdata;
|
|
shortdata ++;
|
|
data += 2;
|
|
|
|
size = 4 * (width * height) + 12;
|
|
|
|
if (size > 12)
|
|
{
|
|
ptr = malloc (size);
|
|
if (ptr == NULL)
|
|
return NULL;
|
|
orig = ptr;
|
|
|
|
/* store width and height */
|
|
*ptr++ = width;
|
|
*ptr++ = height;
|
|
for (int i=0;i<width*height;i++) *ptr++ = vgapal[*data++]; // Ugly - means we have to set the palette correctly before we load the block
|
|
}
|
|
|
|
return orig;
|
|
}
|