| /* |
| SDL - Simple DirectMedia Layer |
| Copyright (C) 1997-2012 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); |
| } |