|
1 /* |
|
2 SDL - Simple DirectMedia Layer |
|
3 Copyright (C) 1997-2006 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 } |