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made cache a generic structure

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This commit is contained in:
Alessandro Mauri 2023-03-05 10:41:40 +01:00
parent 93f93a594e
commit 56a4357b20
6 changed files with 120 additions and 152 deletions
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6
text_rendering/stack.h
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@ -8,7 +8,7 @@
// FIXME: find a way to not re-hash the whole stack when removing one item
// incremental hash for every grow
#define HASH(p, s, h) \
#define STACK_HASH(p, s, h) \
{ \
unsigned char *v = (unsigned char *)(p); \
for (int x = (s); x; x--) { \
@ -58,7 +58,7 @@ int stackname##_push(struct stackname *stack, type *e) \
if (stackname##_grow(stack, STACK_STEP)) \
return -1; \
stack->items[stack->idx++] = *e; \
HASH(e, sizeof(type), stack->hash); \
STACK_HASH(e, sizeof(type), stack->hash); \
return 0; \
} \
\
@ -68,7 +68,7 @@ type stackname##_pop(struct stackname *stack) \
if (!stack || stack->idx == 0 || stack->size == 0) \
return (type){0}; \
stack->hash = STACK_SALT; \
HASH(stack->items, sizeof(type)*(stack->idx-1), stack->hash); \
STACK_HASH(stack->items, sizeof(type)*(stack->idx-1), stack->hash); \
return stack->items[stack->idx--]; \
} \
\