| 1 | /* |
| 2 | SDL - Simple DirectMedia Layer |
| 3 | Copyright (C) 1997-2009 Sam Lantinga |
| 4 | |
| 5 | This library is free software; you can redistribute it and/or |
| 6 | modify it under the terms of the GNU Lesser General Public |
| 7 | License as published by the Free Software Foundation; either |
| 8 | version 2.1 of the License, or (at your option) any later version. |
| 9 | |
| 10 | This library is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 13 | Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser General Public |
| 16 | License along with this library; if not, write to the Free Software |
| 17 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | |
| 19 | Sam Lantinga |
| 20 | slouken@libsdl.org |
| 21 | */ |
| 22 | #include "SDL_config.h" |
| 23 | |
| 24 | #include <sys/ioctl.h> |
| 25 | |
| 26 | #include "SDL_mouse.h" |
| 27 | #include "../../events/SDL_events_c.h" |
| 28 | #include "../SDL_cursor_c.h" |
| 29 | #include "SDL_gsvideo.h" |
| 30 | #include "SDL_gsmouse_c.h" |
| 31 | |
| 32 | |
| 33 | /* The implementation dependent data for the window manager cursor */ |
| 34 | struct WMcursor { |
| 35 | int unused; |
| 36 | }; |
| 37 | |
| 38 | /* There isn't any implementation dependent data */ |
| 39 | void GS_FreeWMCursor(_THIS, WMcursor *cursor) |
| 40 | { |
| 41 | return; |
| 42 | } |
| 43 | |
| 44 | /* There isn't any implementation dependent data */ |
| 45 | WMcursor *GS_CreateWMCursor(_THIS, |
| 46 | Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y) |
| 47 | { |
| 48 | return((WMcursor *)0x01); |
| 49 | } |
| 50 | |
| 51 | static void GS_MoveCursor(_THIS, SDL_Cursor *cursor, int x, int y) |
| 52 | { |
| 53 | SDL_Surface *screen; |
| 54 | struct ps2_image image; |
| 55 | SDL_Rect area; |
| 56 | int mouse_y1, mouse_y2; |
| 57 | void *saved_pixels; |
| 58 | int screen_updated; |
| 59 | |
| 60 | /* Lock so we don't interrupt an update with mouse motion */ |
| 61 | SDL_LockCursor(); |
| 62 | |
| 63 | /* Make sure any pending DMA has completed */ |
| 64 | if ( dma_pending ) { |
| 65 | ioctl(console_fd, PS2IOC_SENDQCT, 1); |
| 66 | dma_pending = 0; |
| 67 | } |
| 68 | |
| 69 | /* Remove the cursor image from the DMA area */ |
| 70 | screen = this->screen; |
| 71 | saved_pixels = screen->pixels; |
| 72 | screen->pixels = mapped_mem + screen->offset; |
| 73 | screen_updated = 0; |
| 74 | if ( cursor_drawn ) { |
| 75 | SDL_EraseCursorNoLock(screen); |
| 76 | cursor_drawn = 0; |
| 77 | screen_updated = 1; |
| 78 | } |
| 79 | |
| 80 | /* Save the current mouse area */ |
| 81 | SDL_MouseRect(&area); |
| 82 | mouse_y1 = area.y; |
| 83 | mouse_y2 = area.y+area.h; |
| 84 | |
| 85 | /* Only draw the new cursor if there was one passed in */ |
| 86 | if ( cursor ) { |
| 87 | /* Set the new location */ |
| 88 | cursor->area.x = (x - cursor->hot_x); |
| 89 | cursor->area.y = (y - cursor->hot_y); |
| 90 | |
| 91 | /* Draw the cursor at the new location */ |
| 92 | if ( (SDL_cursorstate & CURSOR_VISIBLE) && screen->pixels ) { |
| 93 | SDL_DrawCursorNoLock(screen); |
| 94 | cursor_drawn = 1; |
| 95 | screen_updated = 1; |
| 96 | } |
| 97 | } |
| 98 | screen->pixels = saved_pixels; |
| 99 | |
| 100 | /* Update the affected area of the screen */ |
| 101 | if ( screen_updated ) { |
| 102 | SDL_MouseRect(&area); |
| 103 | if ( area.y < mouse_y1 ) { |
| 104 | mouse_y1 = area.y; |
| 105 | } |
| 106 | if ( (area.y+area.h) > mouse_y2 ) { |
| 107 | mouse_y2 = area.y+area.h; |
| 108 | } |
| 109 | image = screen_image; |
| 110 | image.y += screen->offset / screen->pitch + mouse_y1; |
| 111 | image.h = mouse_y2 - mouse_y1; |
| 112 | image.ptr = mapped_mem + |
| 113 | (image.y - screen_image.y) * screen->pitch; |
| 114 | ioctl(console_fd, PS2IOC_LOADIMAGE, &image); |
| 115 | |
| 116 | /* Need to scale offscreen image to TV output */ |
| 117 | if ( image.y > 0 ) { |
| 118 | scaleimage_nonblock(console_fd, |
| 119 | tex_tags_mem, scale_tags_mem); |
| 120 | } |
| 121 | } |
| 122 | |
| 123 | /* We're finished */ |
| 124 | SDL_UnlockCursor(); |
| 125 | } |
| 126 | |
| 127 | void GS_MoveWMCursor(_THIS, int x, int y) |
| 128 | { |
| 129 | GS_MoveCursor(this, SDL_cursor, x, y); |
| 130 | } |
| 131 | |
| 132 | int GS_ShowWMCursor(_THIS, WMcursor *wmcursor) |
| 133 | { |
| 134 | SDL_Cursor *cursor; |
| 135 | int x, y; |
| 136 | |
| 137 | /* Draw the cursor at the appropriate location */ |
| 138 | SDL_GetMouseState(&x, &y); |
| 139 | if ( wmcursor ) { |
| 140 | cursor = SDL_cursor; |
| 141 | } else { |
| 142 | cursor = NULL; |
| 143 | } |
| 144 | GS_MoveCursor(this, cursor, x, y); |
| 145 | return(1); |
| 146 | } |