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optimized by only comparing the hashes if the length matches.

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smf- 2011-07-25 16:38:19 +00:00
parent 8e84c1f225
commit e5ebc225d9
1 changed files with 6 additions and 5 deletions
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11
src/emu/audit.c
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@ -454,11 +454,12 @@ int media_auditor::also_used_by_parent(const hash_collection &romhashes, UINT64
for (const rom_source *source = rom_first_source(m_enumerator.config(drvindex)); source != NULL; source = rom_next_source(*source))
for (const rom_entry *region = rom_first_region(*source); region; region = rom_next_region(region))
for (const rom_entry *rom = rom_first_file(region); rom; rom = rom_next_file(rom))
{
hash_collection hashes(ROM_GETHASHDATA(rom));
if (hashes == romhashes && ROM_GETLENGTH(rom) == romlength)
return drvindex;
}
if (ROM_GETLENGTH(rom) == romlength)
{
hash_collection hashes(ROM_GETHASHDATA(rom));
if (hashes == romhashes)
return drvindex;
}
// nope, return -1
return -1;