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comparison src/video/SDL_cursor.c @ 595:591b438ab94a

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Don't warp the mouse when a video mode hasn't been set
author Sam Lantinga <slouken@libsdl.org>
date Fri, 07 Feb 2003 05:47:15 +0000
parents 5c74ac147358
children b8d311d90021
comparison
equal deleted inserted replaced
594:a71ce390adeb 595:591b438ab94a
293 void SDL_WarpMouse (Uint16 x, Uint16 y) 293 void SDL_WarpMouse (Uint16 x, Uint16 y)
294 { 294 {
295 SDL_VideoDevice *video = current_video; 295 SDL_VideoDevice *video = current_video;
296 SDL_VideoDevice *this = current_video; 296 SDL_VideoDevice *this = current_video;
297 297
298 if ( !video || !SDL_PublicSurface ) {
299 SDL_SetError("A video mode must be set before warping mouse");
300 return;
301 }
302
298 /* If we have an offset video mode, offset the mouse coordinates */ 303 /* If we have an offset video mode, offset the mouse coordinates */
299 x += (this->screen->offset % this->screen->pitch) / 304 x += (this->screen->offset % this->screen->pitch) /
300 this->screen->format->BytesPerPixel; 305 this->screen->format->BytesPerPixel;
301 y += (this->screen->offset / this->screen->pitch); 306 y += (this->screen->offset / this->screen->pitch);
302 307