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Oops, the previous commit actually made hashing NEVER happen, no wonder it was so fast

This commit is contained in:
Luke Usher 2018-02-01 21:38:10 +00:00
parent 9ebee168a9
commit 0c2a2d85fe
1 changed files with 6 additions and 4 deletions
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10
src/CxbxKrnl/EmuD3D8.cpp
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@ -822,12 +822,14 @@ bool HostResourceRequiresUpdate(resource_key_t key)
// Rehash the resource after a certain amount of milliseconds has passed
// We do this because hashing every single use is too expensive
// Note: This will have to do until we get proper dirty page support
// Even with a 1ms hash lifetime, Turok goes from 2fps to 160fps on the title screen
// Currently this is set to roughly 1 hash per frame, but may need adjusting
// if wrong textures are seen in game.
auto now = std::chrono::high_resolution_clock::now();
auto duration = std::chrono::duration_cast<std::chrono::milliseconds>(it->second.lastHashedTime - now).count();
if (duration > 1) {
uint32_t oldHash = it->second.hash;
auto duration = std::chrono::duration_cast<std::chrono::milliseconds>(now - it->second.lastHashedTime).count();
if (duration > 16) {
uint32_t oldHash = it->second.hash;
it->second.hash = XXHash32::hash(it->second.pXboxData, it->second.szXboxDataSize, 0);
it->second.lastHashedTime = now;
if (it->second.hash != oldHash) {
return true;