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tighten up state machine, only move to INVALIDATED from QUIESCENT #1631

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nick black 2021-05-05 04:24:33 -04:00
parent d574dee3fe
commit 96491e42df
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GPG Key ID: 5F43400C21CBFACC
2 changed files with 15 additions and 7 deletions
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20
src/lib/internal.h
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@ -999,20 +999,28 @@ sprite_draw(const notcurses* n, const ncpile* p, sprixel* s, FILE* out){
static inline int
sprite_rebuild(const notcurses* nc, sprixel* s, int ycell, int xcell){
const int idx = s->dimx * ycell + xcell;
int ret = 0;
// special case the transition back to SPRIXCELL_TRANSPARENT; this can be
// done in O(1), since the actual glyph needn't change.
if(s->n->tam[s->dimx * ycell + xcell].state == SPRIXCELL_ANNIHILATED_TRANS){
s->n->tam[s->dimx * ycell + xcell].state = SPRIXCELL_TRANSPARENT;
}else if(s->n->tam[s->dimx * ycell + xcell].state == SPRIXCELL_ANNIHILATED){
if(s->n->tam[idx].state == SPRIXCELL_ANNIHILATED_TRANS){
s->n->tam[idx].state = SPRIXCELL_TRANSPARENT;
}else if(s->n->tam[idx].state == SPRIXCELL_ANNIHILATED){
// sets the new state itself
uint8_t* auxvec = s->n->tam[s->dimx * ycell + xcell].auxvector;
uint8_t* auxvec = s->n->tam[idx].auxvector;
assert(auxvec);
ret = nc->tcache.pixel_rebuild(s, ycell, xcell, auxvec);
free(auxvec);
s->n->tam[s->dimx * ycell + xcell].auxvector = NULL;
s->n->tam[idx].auxvector = NULL;
}
// don't upset SPRIXEL_MOVED
if(s->invalidated == SPRIXEL_QUIESCENT){
if(s->n->tam[idx].state != SPRIXCELL_TRANSPARENT &&
s->n->tam[idx].state != SPRIXCELL_ANNIHILATED &&
s->n->tam[idx].state != SPRIXCELL_ANNIHILATED_TRANS){
s->invalidated = SPRIXEL_INVALIDATED;
}
}
s->invalidated = SPRIXEL_INVALIDATED;
return ret;
}

2
src/lib/sprite.c
View File

@ -102,7 +102,7 @@ void sprixel_hide(sprixel* s){
// y and x are absolute coordinates.
void sprixel_invalidate(sprixel* s, int y, int x){
//fprintf(stderr, "INVALIDATING AT %d/%d\n", y, x);
if(s->invalidated != SPRIXEL_HIDE && s->n){
if(s->invalidated == SPRIXEL_QUIESCENT && s->n){
int localy = y - s->n->absy;
int localx = x - s->n->absx;
//fprintf(stderr, "INVALIDATING AT %d/%d (%d/%d) TAM: %d\n", y, x, localy, localx, s->n->tam[localy * s->dimx + localx].state);