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[Core] Add option to hash text contents to text config

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Nic Barker 2025-01-30 09:34:33 +13:00
parent 5fae7a6249
commit b9df40003f
1 changed files with 13 additions and 3 deletions
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16
clay.h
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@ -324,6 +324,7 @@ typedef struct {
uint16_t letterSpacing;
uint16_t lineHeight;
Clay_TextElementConfigWrapMode wrapMode;
bool hashStringContents;
#ifdef CLAY_EXTEND_CONFIG_TEXT
CLAY_EXTEND_CONFIG_TEXT
#endif
@ -987,9 +988,18 @@ uint32_t Clay__HashTextWithConfig(Clay_String *text, Clay_TextElementConfig *con
uint32_t hash = 0;
uintptr_t pointerAsNumber = (uintptr_t)text->chars;
hash += pointerAsNumber;
hash += (hash << 10);
hash ^= (hash >> 6);
if (config->hashStringContents) {
uint32_t maxLengthToHash = CLAY__MIN(text->length, 256);
for (int i = 0; i < maxLengthToHash; i++) {
hash += text->chars[i];
hash += (hash << 10);
hash ^= (hash >> 6);
}
} else {
hash += pointerAsNumber;
hash += (hash << 10);
hash ^= (hash >> 6);
}
hash += text->length;
hash += (hash << 10);