mirror of
https://github.com/isometimes/rpi4-osdev
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39 lines
782 B
C
39 lines
782 B
C
#include "../include/wgt.h"
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#include "../include/mem.h"
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block wloadblock (unsigned char *data)
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{
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block ptr;
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block orig = NULL;
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short *shortdata = (short *)data;
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unsigned int width, height, size;
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if (data == NULL) {
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return NULL;
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}
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width = *shortdata;
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shortdata ++;
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data += 2;
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height = *shortdata;
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shortdata ++;
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data += 2;
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size = 4 * (width * height) + 12;
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if (size > 12)
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{
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ptr = malloc (size);
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if (ptr == NULL)
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return NULL;
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orig = ptr;
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/* store width and height */
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*ptr++ = width;
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*ptr++ = height;
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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
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}
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return orig;
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}
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