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raster: enter and leave pixel mode #200

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nick black 2021-02-25 21:28:52 -05:00 committed by Nick Black
parent 391fef3a3f
commit df65b43e49
2 changed files with 51 additions and 13 deletions
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2
src/lib/internal.h
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@ -128,6 +128,8 @@ typedef struct rasterstate {
bool bgpalelidable;
bool fgdefelidable;
bool bgdefelidable;
// are we in a pixel graphics mode?
bool pixelmode;
} rasterstate;
// Tablets are the toplevel entitites within an ncreel. Each corresponds to

62
src/lib/render.c
View File

@ -579,22 +579,58 @@ ncfputc(char c, FILE* out){
#endif
}
// write the nccell's UTF-8 extended grapheme cluster to the provided FILE*.
static int
term_putc(FILE* out, const egcpool* e, const nccell* c){
if(cell_simple_p(c)){
//fprintf(stderr, "[%.4s] %08x\n", (const char*)&c->gcluster, c->gcluster); }
// we must not have any 'cntrl' characters at this point
if(c->gcluster == 0){
if(ncfputc(' ', out) == EOF){
return -1;
}
}else if(ncfputs((const char*)&c->gcluster, out) == EOF){
enter_pixel_mode(notcurses* nc, FILE* out){
if(!nc->rstate.pixelmode){
if(term_emit("\ePq", out, false)){
return -1;
}
}
nc->rstate.pixelmode = true;
return 0;
}
static int
leave_pixel_mode(notcurses* nc, FILE* out){
if(term_emit("\e\\", out, false)){
return -1;
}
nc->rstate.pixelmode = false;
return 0;
}
// write the nccell's UTF-8 extended grapheme cluster to the provided FILE*.
static int
term_putc(notcurses* nc, FILE* out, const egcpool* e, const nccell* c){
if(cell_pixels_p(c)){
if(!nc->rstate.pixelmode){
if(enter_pixel_mode(nc, out)){
return -1;
}
if(ncfputs(egcpool_extended_gcluster(e, c), out) == EOF){
return -1;
}
}
}else{
if(ncfputs(egcpool_extended_gcluster(e, c), out) == EOF){
return -1;
if(nc->rstate.pixelmode){
if(leave_pixel_mode(nc, out)){
return -1;
}
}
if(cell_simple_p(c)){
//fprintf(stderr, "[%.4s] %08x\n", (const char*)&c->gcluster, c->gcluster); }
// we must not have any 'cntrl' characters at this point
if(c->gcluster == 0){
if(ncfputc(' ', out) == EOF){
return -1;
}
}else if(ncfputs((const char*)&c->gcluster, out) == EOF){
return -1;
}
}else{
if(ncfputs(egcpool_extended_gcluster(e, c), out) == EOF){
return -1;
}
}
}
return 0;
@ -1027,7 +1063,7 @@ notcurses_rasterize_inner(notcurses* nc, const ncpile* p, FILE* out){
nc->rstate.bgpalelidable = false;
}
//fprintf(stderr, "RAST %08x [%s] to %d/%d cols: %u %016lx\n", srccell->gcluster, pool_extended_gcluster(&nc->pool, srccell), y, x, srccell->width, srccell->channels);
if(term_putc(out, &nc->pool, srccell)){
if(term_putc(nc, out, &nc->pool, srccell)){
return -1;
}
++nc->rstate.x;