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fix BGR/RGB handling

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This commit is contained in:
kub 2024-02-14 22:26:18 +01:00
parent fa4a662a34
commit ff8abdddba
3 changed files with 54 additions and 37 deletions
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13
readpng.c
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@ -13,6 +13,7 @@
#include <stdlib.h>
#include <string.h>
#include <png.h>
#include "plat.h"
#include "readpng.h"
#include "lprintf.h"
@ -95,11 +96,7 @@ int readpng(void *dest, const char *fname, readpng_what what, int req_w, int req
int len = width;
while (len--)
{
#ifdef PSP
*dst++ = ((src[2]&0xf8)<<8) | ((src[1]&0xf8)<<3) | (src[0] >> 3); // BGR
#else
*dst++ = ((src[0]&0xf8)<<8) | ((src[1]&0xf8)<<3) | (src[2] >> 3); // RGB
#endif
*dst++ = PXMAKE(src[0], src[1], src[2]);
src += 3;
}
dst += req_w - width;
@ -224,9 +221,9 @@ int writepng(const char *fname, unsigned short *src, int w, int h)
goto end2;
row_pointers[i] = dst;
for (j = 0; j < w; j++, src++, dst += 3) {
dst[0] = (*src & 0xf800) >> 8;
dst[1] = (*src & 0x07e0) >> 3;
dst[2] = (*src & 0x001f) << 3;
dst[0] = PXGETR(*src);
dst[1] = PXGETG(*src);
dst[2] = PXGETB(*src);
}
}