When a game writes the same value that was already configured to a BP
register, Dolphin previously flushed the GPU pipeline and reconfigured
the internal video state (calling SetScissor/SetLineWidth/SetDepthMode).
Some of these useless writes still need to perform actions, for example
writes to the EFB copy trigger or the texture preload registers (which
need to reload the texture from memory).
This allows users to easily check whether their Wii dump is corrupted or not
using the Dolphin properties window. Right click on a game, Properties,
Filesystem tab, then right click on the game partition and select "Check
partition integrity".
This may have some false negatives due to the unused clusters heuristic (see
the comment in VolumeWiiCrypted.cpp). False positives are unlikely.
* JIT-Exceptions:
JitIL code cleanup
Changed the JIT code to make the FPU exception timing more accurate. The exception is now triggered at the first FP instruction instead of the start of the block. Rearranged the JIT exception code for a tiny speed-up. Only external exceptions are checked at the end of the block. All other exceptions are checked at the time they occur.
Fixes issue 5382.
Conflicts:
Source/Core/Core/Src/PowerPC/Jit64/Jit_LoadStore.cpp
* AudioStreaming:
Reset the stream playing flag on init.
force VolumeDirectory to align files to 32KB (only streaming audio files really need to be aligned...)
Removed the DTK Music option. It is now always enabled.
Added the response for audio streaming disc offset requests. Generate an AI interrupt at the end of the audio streaming loop. Fixes Pac-man Fever and the background music in Eternal Darkness.
Fixed the erroneous looping in audio streaming games like Eternal Darkness and Zoids: Battle Legends. Thanks for the tip, tueidj.
Rearranged the JIT exception code for a tiny speed-up. Only external exceptions are checked at the end of the block. All other exceptions are checked at the time they occur.
some how I neglected to remember that r+ requires the file to exist.
still should fix the issue with 0 byte memory cards.
This reverts commit 6bfb8c9597dc0086c406d02d391307e37cf9d4f0.
