We are currently migrating Bugzilla to GitHub issues.
Any changes made to the bug tracker now will be lost, so please do not post new bugs or make changes to them.
When we're done, all bug URLs will redirect to their equivalent location on the new bug tracker.

Test case to reproduce

test-relative-mouse.c (text/x-c), 1.77 KB, created by Kevin Shanahan on 2013-06-05 20:14:25 UTC

(hide)

Description:

Filename:

MIME Type:

Creator: Kevin Shanahan

Created: 2013-06-05 20:14:25 UTC

Size: 1.77 KB

patch

obsolete

>/*
> * Test case for http://bugzilla.libsdl.org/show_bug.cgi?id=1836
> *
> * After setting relative mouse mode, the first time the mouse is
> * moved a large offset is generated in the first received event.
> *
> * Compiled with:
> *  cc -iquote /Library/Frameworks/SDL2.framework/Versions/Current/Headers \
> *     -o test-relative-mouse test-relative-mouse.c -framework SDL2
> *
> * Run in a terminal and press space to toggle relative mode.
> * Press Q or ESC to quit.
> */
>
>#include <stdio.h>
>
>#include "SDL.h"
>
>int
>main(int arcg, char **argv)
>{
>    SDL_Window *window;
>    SDL_Event event;
>    SDL_bool relative = SDL_FALSE;
>    int shown;
>
>    SDL_Init(SDL_INIT_VIDEO);
>
>    window = SDL_CreateWindow("SDL Bug 1836 Test",
>			      SDL_WINDOWPOS_UNDEFINED,
>			      SDL_WINDOWPOS_UNDEFINED,
>			      640, 480,
>			      SDL_WINDOW_SHOWN);
>    if (!window) {
>	printf("Unable to create window (%s)\n", SDL_GetError());
>	return 1;
>    }
>
>    while (1) {
>	while (SDL_PollEvent(&event)) {
>	    switch (event.type) {
>	    case SDL_MOUSEMOTION:
>		if (relative)
>		    printf("Relative motion: (%d, %d)\n",
>			   (int)event.motion.xrel, (int)event.motion.yrel);
>		break;
>	    case SDL_KEYDOWN:
>		switch (event.key.keysym.sym) {
> 		case SDLK_SPACE:
>		    /* Toggle relative mouse mode */
>		    relative = !relative;
>
>		    /*
>		     * Setting the window grab queues up some motion
>		     * for the mouse, but the motion event is not
>		     * generated until the next time the mouse is
>		     * moved.
>		     */
>		    SDL_SetWindowGrab(window, relative);
>
>		    SDL_SetRelativeMouseMode(relative);
>		    break;
>		case SDLK_q:
>		case SDLK_ESCAPE:
>		    goto do_quit;
>		}
>		break;
>	    case SDL_QUIT:
>		goto do_quit;
>
>	    default:
>		/* nothing */
>		break;
>	    }
>	}
>	SDL_Delay(1);
>    }
>
> do_quit:
>    SDL_Quit();
>
>    return 0;
>}

Actions: View

Attachments on bug 1836: 1128 | 1175

We are currently migrating Bugzilla to GitHub issues.Any changes made to the bug tracker now will be lost, so please do not post new bugs or make changes to them.When we're done, all bug URLs will redirect to their equivalent location on the new bug tracker.

We are currently migrating Bugzilla to GitHub issues.
Any changes made to the bug tracker now will be lost, so please do not post new bugs or make changes to them.
When we're done, all bug URLs will redirect to their equivalent location on the new bug tracker.