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genericize hires call to cell_set_bitquadrant()

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nick black 2024-12-28 07:40:26 -05:00 committed by nick black
parent 2d9abd34eb
commit 67a122e857
1 changed files with 10 additions and 6 deletions
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16
src/lib/blit.c
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@ -891,20 +891,20 @@ hires_trans_check(nccell* c, const uint32_t* rgbas, unsigned blendcolors,
for(int mask = 0 ; mask < cellheight * 2 ; ++mask){
if(rgba_trans_p(rgbas[mask], transcolor)){
transstring |= (1u << mask);
}else if(!nointerpolate || !div){
}else if(!nointerpolate || !div){ // force an initialization if nointerpolate
r += ncpixel_r(rgbas[mask]);
g += ncpixel_g(rgbas[mask]);
b += ncpixel_b(rgbas[mask]);
++div;
}
}
// transstring can only have 0x80 and/or 0x40 set if cellheight was 4
if(transstring == 0){ // there was no transparency
return NULL;
}
nccell_set_bg_alpha(c, NCALPHA_TRANSPARENT);
// there were some transparent pixels. since they get priority, the foreground
// is just a general lerp across non-transparent pixels.
// is just a general lerp across non-transparent pixels. transstring can only
// have 0x80 and/or 0x40 set if cellheight was 4.
const char* egc = transegcs[transstring];
nccell_set_bg_alpha(c, NCALPHA_TRANSPARENT);
//fprintf(stderr, "transtring: %u egc: %s\n", transtring, egc);
@ -917,9 +917,13 @@ hires_trans_check(nccell* c, const uint32_t* rgbas, unsigned blendcolors,
if(blendcolors){
nccell_set_fg_alpha(c, NCALPHA_BLEND);
}
// FIXME genericize for hires
cell_set_blitquadrants(c, !(transstring & 5u), !(transstring & 10u),
!(transstring & 20u), !(transstring & 40u));
if(cellheight == 3){
cell_set_blitquadrants(c, !(transstring & 0x5), !(transstring & 0xa),
!(transstring & 0x14), !(transstring & 0x28));
}else{
cell_set_blitquadrants(c, !(transstring & 0x5), !(transstring & 0xa),
!(transstring & 0x50), !(transstring & 0xa0));
}
}
//fprintf(stderr, "SEX-BQ: 0x%x\n", cell_blittedquadrants(c));
return egc;