On PowerPC round to nearest ties to even, not away from zero
Also implement correct behavior for ppc_fresx
Fixes "tips to win" sequence in Daytona 2 BOTE
Some games update the tilegen after the ping_ping bit has flipped at 66% of the frame, so we need to split the tilegen drawing up into two stages to get some effects to work. So having the tilegen draw independantly of the 3d chip can make this happen.
Tilegen shaders are mapped to uniforms, and the vram and palette are mapped to two textures.
TODO rip out the redundant code in the tilegen class. We don't need to pre-calculate palettes anymore. etc
The tilegen code supports has a start/end line so we can emulate as many lines as we want in a chunk, which will come in later as some games update the tilegen immediately after the ping_pong bit has flipped ~ 66% of the frame.
The scud rolling start tilegen bug is probably actually a bug in the original h/w implementation, that ends up looking correct on original h/w but not for us. Need hardware testing to confirm what it's actually doing.
The 68K on the soundboard is rated at 12 MHz but runs at 11.2896 MHz, which is 256 cycles/sample with a 44100 Hz sample rate. Removed SoundClock and Freq as they are not needed
-add a new separate class for crosshair
-crosshair coordinates are calculated by matrix instead of recreating every object at correct coordinates
-add ability to scale crosshair by dpi
-add ability to use bitmap crosshair (located in ./Media/). 32bits bmp format + alpha
-cmd line "-bitmapcrosshair" or "-vectorcrosshair" and/or BitmapCrosshair=0|1 in config file
-these changes are only for lost world game with Crosshairs=1|2|3
don't forget to copy the 2 crosshair images in Supermodel/Media folder
-pos=<x>,<y> Position [Default: centered]
-borderless Windowed mode with no border
These 2 settings are usefull when setting up a multiplayer game on one machine.
Example for 4 windows in fullHD:
start "Master" /D"Master_P4" Supermodel.exe -input-system=sdl ..\ROMS\dayto2pe.zip -res=960,540 -borderless -pos=0,0
start "Slave1" /D"Slave1_P4" Supermodel.exe -input-system=sdl ..\ROMS\dayto2pe.zip -res=960,540 -borderless -pos=960,0
start "Slave2" /D"Slave2_P4" Supermodel.exe -input-system=sdl ..\ROMS\dayto2pe.zip -res=960,540 -borderless -pos=0,540
start "Slave3" /D"Slave3_P4" Supermodel.exe -input-system=sdl ..\ROMS\dayto2pe.zip -res=960,540 -borderless -pos=960,540
To active set your command line to:
-res=1920,1080 -vsync -fullscreen -true-hz
Replace the resolution with whatever your monitor's native resolution is.
the volume correction to bring the data back into a valid range is not really needed in practice though, only Daytona2 seems to need it, and also only extremely rarely, so lets just live with a tiny bit of clamping for that game then
while add it, make some formatting similar to MAME, and add one comment regarding a most likely wrong recent MAME change
