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degenericize blit_4x2() -> braille_blit()

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nick black 2024-12-28 08:32:57 -05:00 committed by nick black
parent edb8f31aca
commit 1d0976b0cf
1 changed files with 4 additions and 14 deletions
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18
src/lib/blit.c
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@ -1074,14 +1074,10 @@ fold_rgb8(unsigned* restrict r, unsigned* restrict g, unsigned* restrict b,
++*foldcount;
}
// generic 4x2 blitter, used for octant and Braille. maps 4x2 to each
// cell. since we only have one color at our disposal (foreground), we
// lose some fidelity. this is optimal for visuals with only two
// colors in a given area, as it packs lots of resolution. always
// transparent background.
// Braille maps 4x2 to each cell, always using a transparent background.
static inline int
blit_4x2(ncplane* nc, int linesize, const void* data, int leny, int lenx,
const blitterargs* bargs, const char egcs[256][5]){
braille_blit(ncplane* nc, int linesize, const void* data, int leny, int lenx,
const blitterargs* bargs){
const bool blendcolors = bargs->flags & NCVISUAL_OPTION_BLEND;
unsigned dimy, dimx, x, y;
int total = 0; // number of cells written
@ -1185,7 +1181,7 @@ blit_4x2(ncplane* nc, int linesize, const void* data, int leny, int lenx,
if(blends){
nccell_set_fg_rgb8(c, r / blends, g / blends, b / blends);
}
const char* egc = egcs[egcidx];
const char* egc = braille_egcs[egcidx];
if(pool_blit_direct(&nc->pool, c, egc, strlen(egc), 1) <= 0){
return -1;
}
@ -1196,12 +1192,6 @@ blit_4x2(ncplane* nc, int linesize, const void* data, int leny, int lenx,
return total;
}
static inline int
braille_blit(ncplane* nc, int linesize, const void* data, int leny, int lenx,
const blitterargs* bargs){
return blit_4x2(nc, linesize, data, leny, lenx, bargs, braille_egcs);
}
// NCBLIT_DEFAULT is not included, as it has no defined properties. It ought
// be replaced with some real blitter implementation by the calling widget.
// The order of contents is critical for 'egcs': ncplane_as_rgba() uses these