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Remove size parameter from dsf init and copy functions.

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Now that the dsf knows its own size internally, there's no need to
tell it again when one is copied or reinitialised.

This makes dsf_init much more about *re*initialising a dsf, since now
dsfs are always allocated using a function that will initialise them
anyway. So I think it deserves a rename.
This commit is contained in:
Simon Tatham
2023-04-20 14:46:46 +01:00
parent dad2f35502
commit 348aac4c85
15 changed files with 37 additions and 35 deletions
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13
bridges.c
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@ -1140,13 +1140,13 @@ static bool map_hasloops(game_state *state, bool mark)
static void map_group(game_state *state)
{
int i, wh = state->w*state->h, d1, d2;
int i, d1, d2;
int x, y, x2, y2;
DSF *dsf = state->solver->dsf;
struct island *is, *is_join;
/* Initialise dsf. */
dsf_init(dsf, wh);
dsf_reinit(dsf);
/* For each island, find connected islands right or down
* and merge the dsf for the island squares as well as the
@ -1532,7 +1532,6 @@ static bool solve_island_stage3(struct island *is, bool *didsth_r)
{
int i, n, x, y, missing, spc, curr, maxb;
bool didsth = false;
int wh = is->state->w * is->state->h;
struct solver_state *ss = is->state->solver;
assert(didsth_r);
@ -1556,7 +1555,7 @@ static bool solve_island_stage3(struct island *is, bool *didsth_r)
maxb = -1;
/* We have to squirrel the dsf away and restore it afterwards;
* it is additive only, and can't be removed from. */
dsf_copy(ss->tmpdsf, ss->dsf, wh);
dsf_copy(ss->tmpdsf, ss->dsf);
for (n = curr+1; n <= curr+spc; n++) {
solve_join(is, i, n, false);
map_update_possibles(is->state);
@ -1572,7 +1571,7 @@ static bool solve_island_stage3(struct island *is, bool *didsth_r)
}
}
solve_join(is, i, curr, false); /* put back to before. */
dsf_copy(ss->dsf, ss->tmpdsf, wh);
dsf_copy(ss->dsf, ss->tmpdsf);
if (maxb != -1) {
/*debug_state(is->state);*/
@ -1641,7 +1640,7 @@ static bool solve_island_stage3(struct island *is, bool *didsth_r)
is->adj.points[j].dx ? G_LINEH : G_LINEV);
if (before[i] != 0) continue; /* this idea is pointless otherwise */
dsf_copy(ss->tmpdsf, ss->dsf, wh);
dsf_copy(ss->tmpdsf, ss->dsf);
for (j = 0; j < is->adj.npoints; j++) {
spc = island_adjspace(is, true, missing, j);
@ -1656,7 +1655,7 @@ static bool solve_island_stage3(struct island *is, bool *didsth_r)
for (j = 0; j < is->adj.npoints; j++)
solve_join(is, j, before[j], false);
dsf_copy(ss->dsf, ss->tmpdsf, wh);
dsf_copy(ss->dsf, ss->tmpdsf);
if (got) {
debug(("island at (%d,%d) must connect in direction (%d,%d) to"