开发日志:GPU: Try to clean up GPUEngineBase::_SpriteRenderPerform() a little bit. GPU: Be consistent with how we apply the sprite window flags. Now applies the sprite window flags consistently between rotozoomed
and non-rotozoomed modes. Applying the sprite window flags in rotozoomed modes now ignores
sprite priority as intended. GPU: When compositing a sprite, remove the color effect enable test so that the enable test and the OBJ translucency test don't conflict whenever window testing is also enabled. Fixes the portal-in-the-horizon scene in Pokemon Mystery Dungeon: Explorers of Sky. (Fixes #92.) Also rename some variables for better code clarity. GPU.cpp/.h: Revert back to using Unix-style line-endings instead of Windows-style line-endings.