By setting the initialization flag before the CheckReady() call, the notifications get sent correctly, and no extra asset references remain. This checkin also includes a unit test for the AssetManager that specifically forces this condition to happen and validates that it works correctly.
- Added operator+(Matrix3x4), operator*(float), RetrieveScaleSq and GetReciprocalScaled to Matrix3x4. Used by Cloth CPU Linear Skinning. These operation will be performant as they use SIMD.
- Modified so there are no virtual functions calls at vertex level.
- Caching indices to simplify the loop when applying skinning.
- Caching static variables Matrix3x4 zero and DualQuaternion zero to avoid creating it for every vertex.
- Removing branching to skip joints when the weight is zero, these cases are rarely and this improves performance by removing branching from loops at vertex level.
- Changing skinning influences so it's a continuous block of memory.
- Caching the vector size() if a variable instead of directly using it in a for loop.
* LYN-2537 Updated the AssetBundler code to looks for the AssetSeedList
files within the Assets/Engine directory
Updated the MissingDependencyScanner GetXMLDependenciesFile functions to
use the Assets/Engine directory as well
Also fixed the MissingDependencyScanner to properly located dependency
xml files within gem directories
* Adding back input argument validation for the AssetBundler command options.
Also added an application_options settings registry file that contains the list of valid command options for the ComponentApplication
* Adding missing end of file newline for applications_options.setreg
* Fixed the AssetBundler help output for the bundleSeed command
The specific mutex is "m_assetMutex" in the AssetManager. AssetManager::ReloadAssetFromData was holding this lock while calling AssignAssetData, which goes on to call OnAssetReloaded. This is dangerous, because any arbitrary logic can be executed during that call, including blocking asset loads, which is what happens in this specific deadlock case. The fix is to move the call to AssignAssetData outside of the mutex lock. AssignAssetData itself already grabs the assetMutex to protect the parts of its logic that are necessary, and then specifically releases the lock before calling OnAssetReloaded, so this change shouldn't introduce any dangerous threading conditions.
(cherry picked from commit 1581a28339f12d521955edef890acfb678a0df6f)
mbalfour
hultonha
Aaron Ruiz Mora
Tom Hulton-Harrop
Chris Burel
karlberg
lumberyard-employee-dm
srikappa
jonbeer
Chris Galvan
Aristo7
puvvadar
AMZN-koppersr
AMZN-mnaumov
mnaumov
Mike Balfour
nvsickle
greerdv
daimini
sconel
Luis Sempé
luissemp