for the camhack to work we have to save a state, hack memory, advance twice to see the changes, then load the state to prevent desync. since we can omit the framebuffer in savestates, loading them can happen without updating the screen, so the hacked camera remains visible.
advancing 2 frames automatically is done like tastudio does it when it seeks to a frame, only from lua now.
and the most questionable part is "invisible emulation", which is how Gens calls this IIRC, when everything that can distract or slow us down is skipped: sound, video, tools updates.
new lua functions:
- client.invisibleemulation()
- client.seekframe()
* for a test, mGBA core uses fake video and audio buffers and renders to them when we want to "skip" rendering. proper setup would involve actually skipping rendering those inside the core.
* allow disabling video and audio updates for gpgx too (proper approach, no fake buffers involved)
* add the script for Sonic Advance
* add MAME to OpenAdvanced
* make mame launch games
limited to arcades that only need rom name. other devices require machine name and rom name, and won't run. nor they are meant to be supported anyway: we have enough emulators that do the job better for particular devices.
dunno if direct disk access will be avoidable, there are quite some files it might want to load other than the rom (parent rom, bios, artwork). trapping all of these might be a future task.
it is also known that mame can load "romname.zip" file just as well as "romname" folder, which would represent an unarchived zip. I make use of it to send it zip name with extension. it's easy, and we're not obliged to recognize mere folder paths in the mame-advanced-loader logic.
* ability to run lua code inside mame
mainform: show pause icon first, even if we're seeking, because seeking is mostly a tastudio feature and its status is reported by tastudio already. fixes#1456
OSD info on branch hover is mandatory, so I'm not removing it. drawing the branch OSD-framebuffer on the emulator screen is barely possible without butchering everything, so I'm not doing it. instead, keep both core and client framebuffers and use them where they make sense: osd FB shows up on hover, core FB goes to emulator screen on branch load.
adelikat