Avoid NullPointerException in FileLocator when the file data could not be read.

git-svn-id: http://jpcsp.googlecode.com/svn/trunk@3188 4ab978e6-3352-0410-996c-0b42db0051c8
Avoid ConcurrentModificationException on video textures.

git-svn-id: http://jpcsp.googlecode.com/svn/trunk@3189 4ab978e6-3352-0410-996c-0b42db0051c8
Fixed sceDisplayWaitVblankStartMulti(): wait for the correct number of cycles, also after restarting the wait state.
Code clean-up to better identify the thread blocked states.

git-svn-id: http://jpcsp.googlecode.com/svn/trunk@3190 4ab978e6-3352-0410-996c-0b42db0051c8