1 /*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2012 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 */
GS_FreeWMCursor(_THIS,WMcursor * cursor)39 void GS_FreeWMCursor(_THIS, WMcursor *cursor)
40 {
41 return;
42 }
43
44 /* There isn't any implementation dependent data */
GS_CreateWMCursor(_THIS,Uint8 * data,Uint8 * mask,int w,int h,int hot_x,int hot_y)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
GS_MoveCursor(_THIS,SDL_Cursor * cursor,int x,int y)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
GS_MoveWMCursor(_THIS,int x,int y)127 void GS_MoveWMCursor(_THIS, int x, int y)
128 {
129 GS_MoveCursor(this, SDL_cursor, x, y);
130 }
131
GS_ShowWMCursor(_THIS,WMcursor * wmcursor)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 }
147