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Added support for odd render area width

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HW
2011-12-02 00:37:28 +01:00
parent 003fe05725
commit dfbdad5cbf
1 changed files with 11 additions and 7 deletions
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18
pdf.c
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@@ -287,14 +287,18 @@ static int drawPage(lua_State *L) {
fz_free_device(dev);
uint8_t *bbptr = (uint8_t*)bb->data;
uint32_t *pmptr = (uint32_t*)pix->samples;
uint16_t *pmptr = (uint16_t*)pix->samples;
int x, y;
int c = bb->w * bb->h / 2;
while(c--) {
*bbptr = (((*pmptr & 0x00F00000) >> 20) | (*pmptr & 0x000000F0)) ^ 0xFF;
bbptr++;
pmptr++;
for(y = 0; y < bb->h; y++) {
for(x = 0; x < bb->w; x+=2) {
bbptr[x / 2] = (((pmptr[x+1] & 0xF0) >> 4) | (pmptr[x] & 0xF0)) ^ 0xFF;
}
if(bb->w & 1) {
bbptr[x / 2] = pmptr[x-1] & 0xF0;
}
bbptr += bb->pitch;
pmptr += bb->w;
}
fz_drop_pixmap(pix);