text: /*
      SDL - Simple DirectMedia Layer
      Copyright (C) 1997-2009 Sam Lantinga
  
      This library is free software; you can redistribute it and/or
      modify it under the terms of the GNU Lesser General Public
      License as published by the Free Software Foundation; either
      version 2.1 of the License, or (at your option) any later version.
  
      This library is distributed in the hope that it will be useful,
      but WITHOUT ANY WARRANTY; without even the implied warranty of
      MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      Lesser General Public License for more details.
  
      You should have received a copy of the GNU Lesser General Public
      License along with this library; if not, write to the Free Software
      Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  
      Sam Lantinga
      slouken@libsdl.org
  */
  #include "SDL_config.h"
  
  #include <sys/ioctl.h>
  
  #include "SDL_mouse.h"
  #include "../../events/SDL_events_c.h"
  #include "../SDL_cursor_c.h"
  #include "SDL_gsvideo.h"
  #include "SDL_gsmouse_c.h"
  
  
  /* The implementation dependent data for the window manager cursor */
  struct WMcursor {
  	int unused;
  };
  
  /* There isn't any implementation dependent data */
  void GS_FreeWMCursor(_THIS, WMcursor *cursor)
  {
  	return;
  }
  
  /* There isn't any implementation dependent data */
  WMcursor *GS_CreateWMCursor(_THIS,
  		Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y)
  {
  	return((WMcursor *)0x01);
  }
  
  static void GS_MoveCursor(_THIS, SDL_Cursor *cursor, int x, int y)
  {
  	SDL_Surface *screen;
  	struct ps2_image image;
  	SDL_Rect area;
  	int mouse_y1, mouse_y2;
  	void *saved_pixels;
  	int screen_updated;
  
  	/* Lock so we don't interrupt an update with mouse motion */
  	SDL_LockCursor();
  
  	/* Make sure any pending DMA has completed */
  	if ( dma_pending ) {
  		ioctl(console_fd, PS2IOC_SENDQCT, 1);
  		dma_pending = 0;
  	}
  
  	/* Remove the cursor image from the DMA area */
  	screen = this->screen;
  	saved_pixels = screen->pixels;
  	screen->pixels = mapped_mem + screen->offset;
  	screen_updated = 0;
  	if ( cursor_drawn ) {
  		SDL_EraseCursorNoLock(screen);
  		cursor_drawn = 0;
  		screen_updated = 1;
  	}
  
  	/* Save the current mouse area */
  	SDL_MouseRect(&area);
  	mouse_y1 = area.y;
  	mouse_y2 = area.y+area.h;
  
  	/* Only draw the new cursor if there was one passed in */
  	if ( cursor ) {
  		/* Set the new location */
  		cursor->area.x = (x - cursor->hot_x);
  		cursor->area.y = (y - cursor->hot_y);
  
  		/* Draw the cursor at the new location */
  		if ( (SDL_cursorstate & CURSOR_VISIBLE) && screen->pixels ) {
  			SDL_DrawCursorNoLock(screen);
  			cursor_drawn = 1;
  			screen_updated = 1;
  		}
  	}
  	screen->pixels = saved_pixels;
  
  	/* Update the affected area of the screen */
  	if ( screen_updated ) {
  		SDL_MouseRect(&area);
  		if ( area.y < mouse_y1 ) {
  			mouse_y1 = area.y;
  		}
  		if ( (area.y+area.h) > mouse_y2 ) {
  			mouse_y2 = area.y+area.h;
  		}
  		image = screen_image;
  		image.y += screen->offset / screen->pitch + mouse_y1;
  		image.h = mouse_y2 - mouse_y1;
  		image.ptr = mapped_mem +
  		            (image.y - screen_image.y) * screen->pitch;
  		ioctl(console_fd, PS2IOC_LOADIMAGE, &image);
  
  		/* Need to scale offscreen image to TV output */
  		if ( image.y > 0 ) {
  			scaleimage_nonblock(console_fd,
  			                    tex_tags_mem, scale_tags_mem);
  		}
  	}
  
  	/* We're finished */
  	SDL_UnlockCursor();
  }
  
  void GS_MoveWMCursor(_THIS, int x, int y)
  {
  	GS_MoveCursor(this, SDL_cursor, x, y);
  }
  
  int GS_ShowWMCursor(_THIS, WMcursor *wmcursor)
  {
  	SDL_Cursor *cursor;
  	int x, y;
  
  	/* Draw the cursor at the appropriate location */
  	SDL_GetMouseState(&x, &y);
  	if ( wmcursor ) {
  		cursor = SDL_cursor;
  	} else {
  		cursor = NULL;
  	}
  	GS_MoveCursor(this, cursor, x, y);
  	return(1);
  }
  