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SDL 1.2 without mouse emulation
Posted: Sat Feb 03, 2024 4:32 pm
by nebiun
Hi,
in the old version of SDL 1.2 library you can use wiimote as mouse.
Why this option is not available in devkitPro version?
Re: SDL 1.2 without mouse emulation
Posted: Sun Feb 04, 2024 3:33 am
by WinterMute
Looks like I missed something when I consolidated wii & cube video in our repo. I'll stick it on the TODO list.
Re: SDL 1.2 without mouse emulation
Posted: Sun Feb 04, 2024 7:22 am
by barfoo34
If using SDL2 is an option, then the Wiimote is supported as a mouse there.
Re: SDL 1.2 without mouse emulation
Posted: Sun Feb 04, 2024 7:23 pm
by nebiun
barfoo34 wrote: ↑Sun Feb 04, 2024 7:22 am
If using SDL2 is an option, then the Wiimote is supported as a mouse there.
I'm trying to port OpenXcom on Wii. The project uses SDL1.2, so SDL2 is not and option
Re: SDL 1.2 without mouse emulation
Posted: Mon Feb 05, 2024 5:19 pm
by WinterMute
nebiun wrote: ↑Sat Feb 03, 2024 4:32 pm
Hi,
in the old version of SDL 1.2 library you can use wiimote as mouse.
Why this option is not available in devkitPro version?
Now I've had a chance to look there doesn't appear to be a problem. This code shows a mouse pointer that moves with the wiimote for me.
Code: Select all
#include "SDL.h"
int main ( int argc, char *argv[] )
{
/* initialize SDL */
SDL_Init( SDL_INIT_VIDEO | SDL_INIT_JOYSTICK);
SDL_Surface* screen = SDL_SetVideoMode(640, 480, 0, 0);
SDL_Event event;
int gameover = 0;
SDL_JoystickOpen(0);
/* message pump */
while (!gameover)
{
SDL_JoystickUpdate();
/* look for an event */
if (SDL_PollEvent(&event)) {
/* an event was found */
switch (event.type) {
case SDL_QUIT:
gameover = 1;
break;
case SDL_JOYBUTTONDOWN:
switch(event.jbutton.button) {
case 6: // home button
gameover =1;
break;
}
break;
}
}
/* update the screen */
SDL_UpdateRect(screen, 0, 0, 0, 0);
}
SDL_Quit();
return 0;
}
Re: SDL 1.2 without mouse emulation
Posted: Mon Feb 05, 2024 5:55 pm
by nebiun
Hi,
My problem is not the joystick, but the mouse emulation via Wiimote.
Application uses the mouse, so I need a mouse emulation via Wiimote: when application looks for mouse movements (using mouse routines) these must be "emulated" reading Wiimote.
In SDL_wiievents.c from the old SDL port there is this code:
Code: Select all
if (wd->ir.valid)
{
int newx = wd->ir.x;
int newy = wd->ir.y;
int diffx = newx - lastx;
int diffy = newy - lasty;
lastx = newx;
lasty = newy;
posted += SDL_PrivateMouseMotion(0, 1, diffx, diffy);
Uint8 stateA = SDL_RELEASED;
Uint8 stateB = SDL_RELEASED;
if (wd->btns_h & WPAD_BUTTON_A)
{
stateA = SDL_PRESSED;
}
if (wd->btns_h & WPAD_BUTTON_B)
{
stateB = SDL_PRESSED;
}
if (stateA != lastButtonStateA)
{
lastButtonStateA = stateA;
posted += SDL_PrivateMouseButton(stateA, SDL_BUTTON_LEFT, 0, 0);
}
if (stateB != lastButtonStateB)
{
lastButtonStateB = stateB;
posted += SDL_PrivateMouseButton(stateB, SDL_BUTTON_RIGHT, 0, 0);
}
}
that does the dirty work
Can we have the same in the *official* porting?
Re: SDL 1.2 without mouse emulation
Posted: Mon Feb 05, 2024 6:07 pm
by nebiun
This is an app that does not work.
Re: SDL 1.2 without mouse emulation
Posted: Mon Feb 05, 2024 6:08 pm
by WinterMute
Our equivalent is here
https://github.com/devkitPro/SDL/blob/o ... .c#L54-L71
If you run the code I posted you'll see a mouse pointer that can be controlled with the wiimote. You need to open joystick 0 for this to work.
Re: SDL 1.2 without mouse emulation
Posted: Mon Feb 05, 2024 7:10 pm
by nebiun
Excuse me. These are the same sources and a Makefile to compile on MSYS2 in Windows with SDL library (I think it is work on Linux, too).
And it works as I expect.
So I think that the problem is in the Wii porting of the SDL library and not in the app code.
Can you give it a try?
Thanks.
Re: SDL 1.2 without mouse emulation
Posted: Mon Feb 05, 2024 8:12 pm
by WinterMute
Ok, but if you plug a mouse into your Wii then it does just work. I'm not entirely sure it's reasonable to expect the WiiMote to work this way unless you take steps to enable it.