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sixel_blit: skeletelize loops #200

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nick black 2021-02-25 03:28:00 -05:00 committed by Nick Black
parent d8f5754e85
commit e480bfa192
1 changed files with 14 additions and 1 deletions
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15
src/lib/blit.c
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@ -844,6 +844,19 @@ static inline int
sixel_blit(ncplane* nc, int placey, int placex, int linesize,
const void* data, int begy, int begx,
int leny, int lenx, bool blendcolors){
int dimy, dimx, x, y;
int total = 0; // number of cells written
ncplane_dim_yx(nc, &dimy, &dimx);
int visy = begy;
for(y = placey ; visy < (begy + leny) && y < dimy ; ++y, visy += 6){
if(ncplane_cursor_move_yx(nc, y, placex)){
return -1;
}
int visx = begx;
for(x = placex ; visx < (begx + lenx) && x < dimx ; ++x, visx += 2){
}
}
return total;
}
// NCBLIT_DEFAULT is not included, as it has no defined properties. It ought
@ -863,7 +876,7 @@ static const struct blitset notcurses_blitters[] = {
.blit = tria_blit, .name = "fourstep", .fill = false, },
{ .geom = NCBLIT_BRAILLE, .width = 2, .height = 4, .egcs = L"⠀⢀⢠⢰⢸⡀⣀⣠⣰⣸⡄⣄⣤⣴⣼⡆⣆⣦⣶⣾⡇⣇⣧⣷⣿",
.blit = braille_blit, .name = "braille", .fill = true, },
{ .geom = NCBLIT_PIXEL, .width = 1, .height = 6, .egcs = L"",
{ .geom = NCBLIT_PIXEL, .width = 2, .height = 6, .egcs = L"",
.blit = sixel_blit, .name = "pixel", .fill = true, },
{ .geom = 0, .width = 0, .height = 0, .egcs = NULL,
.blit = NULL, .name = NULL, .fill = false, },