Add a button to quickly swap between Memory<->Rumble Paks #509
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bslenul
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libretro/libretro.c
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| if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value) | ||
| { | ||
| if (!strcmp(var.value, "no delay")) | ||
| swap_pak_delay = 0; | ||
| else if (!strcmp(var.value, "1s hold")) | ||
| swap_pak_delay = 60; | ||
| else if (!strcmp(var.value, "2s hold")) | ||
| swap_pak_delay = 120; | ||
| else if (!strcmp(var.value, "3s hold")) | ||
| swap_pak_delay = 180; |
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- The heck is that unit? Frames?
- If its Frames/VI, then this is not correct depending on Buffer Swap mode for GlideN & PAL/NTSC configurations
- atoi or sscanf, prefer not to have val and string mixed tho
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Yeah it was supposed to be frames, I assumed 60fps and completely forgot about PAL 😓
A bit annoying since ROM_PARAMS isn't initialized yet on the first update_variables() pass so it returns 0 (NTSC) as region even with a PAL game...
Would that be OK as a workaround?
var.key = CORE_NAME "-pak-swap-delay";
var.value = NULL;
if (environ_cb(RETRO_ENVIRONMENT_GET_VARIABLE, &var) && var.value)
{
// If startup is true then ROM infos aren't ready yet and we don't know
// the region of the game yet, so we just keep the seconds for now
// and we'll calculate in frames a bit later in retro_load_game()
swap_pak_delay = atoi(var.value);
if (!startup)
swap_pak_delay *= retro_get_region() == RETRO_REGION_PAL ? 50 : 60;
}then in retro_load_game() after we got the ROM infos:
// Now that we know the region, we can calculate the seconds in frames
// for the 'Memory/Rumble Pak Swap' button hold delay
swap_pak_delay *= retro_get_region() == RETRO_REGION_PAL ? 50 : 60;and I changed the values in libretro_core_options.h to:
{"0", "0 second"},
{"1", "1 second"},
{"2", "2 seconds"},
{"3", "3 seconds"},so even if it shouldn't have been an issue with atoi, there's no val/string mix.
As for the buffer swap I'm not sure how to handle that tbh 🤔
A bit of a bummer, looks more complicated than I expected for my very limited C/C++ skills :(
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Changes pushed, AFAICT it works fine with the correct hold duration for NTSC/PAL now.
Still not sure to understand your "buffer swap" comment, doesn't retro_run run 60 (or 50 for PAL) times per second no matter what? Because basically the only thing I'm doing is once per retro_run I'm increasing the frame count for how long the button to swap paks has been held.
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Different approach using clock() from time.h so the duration of the button being held is calculated in actual seconds instead of relying on frames: bslenul@e2d0392
Otherwise I could simply drop the hold button feature and make the swap on button press only. I initially added the hold options to avoid misclicks, but if you think it's not worth I don't mind removing it.
bslenul
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This PR adds a button to quickly swap from Memory Pak to Rumble Pak and vice-versa (RetroPad Select by default, or R3 if "Independent C-button Controls" is enabled):
mupen_swap_btn.mp4
Very useful for games compatible with both Paks, going back and forth in the Quick Menu every time you want to change quickly becomes annoying...
Just select "memory/rumble (swappable)" for any of the "Player N Pak" core options and it will be enabled for that controller. Also added a core option to select if the swap should be done on press or on hold (1, 2 or 3 seconds).
I hope this is fine, if it is then it closes #502
Also removed the
update_controllers()call here:mupen64plus-libretro-nx/libretro/libretro.c
Lines 1988 to 1991 in f1ad37c
update_variables()just above.