zenilib: zenilib/jni/external/sdl/src/video/x11/SDL_x11mouse.c Source File

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SDL_x11mouse.c
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1 /*
2 Simple DirectMedia Layer
3 Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
4
5 This software is provided 'as-is', without any express or implied
6 warranty. In no event will the authors be held liable for any damages
7 arising from the use of this software.
8
9 Permission is granted to anyone to use this software for any purpose,
10 including commercial applications, and to alter it and redistribute it
11 freely, subject to the following restrictions:
12
13 1. The origin of this software must not be misrepresented; you must not
14 claim that you wrote the original software. If you use this software
15 in a product, an acknowledgment in the product documentation would be
16 appreciated but is not required.
17 2. Altered source versions must be plainly marked as such, and must not be
18 misrepresented as being the original software.
19 3. This notice may not be removed or altered from any source distribution.
20 */
21 #include "SDL_config.h"
22
23 #if SDL_VIDEO_DRIVER_X11
24
25 #include <X11/cursorfont.h>
26 #include "SDL_assert.h"
27 #include "SDL_x11video.h"
28 #include "SDL_x11mouse.h"
29 #include "SDL_x11xinput2.h"
30 #include "../../events/SDL_mouse_c.h"
31
32
33 /* FIXME: Find a better place to put this... */
34 static Cursor x11_empty_cursor = None;
35
36 static Display *
37 GetDisplay(void)
38 {
39 return ((SDL_VideoData *)SDL_GetVideoDevice()->driverdata)->display;
40 }
41
42 static Cursor
43 X11_CreateEmptyCursor()
44 {
45 if (x11_empty_cursor == None) {
46 Display *display = GetDisplay();
47 char data[1];
48 XColor color;
49 Pixmap pixmap;
50
51 SDL_zero(data);
52 color.red = color.green = color.blue = 0;
53 pixmap = XCreateBitmapFromData(display, DefaultRootWindow(display),
54 data, 1, 1);
55 if (pixmap) {
56 x11_empty_cursor = XCreatePixmapCursor(display, pixmap, pixmap,
57 &color, &color, 0, 0);
58 XFreePixmap(display, pixmap);
59 }
60 }
61 return x11_empty_cursor;
62 }
63
64 static void
65 X11_DestroyEmptyCursor(void)
66 {
67 if (x11_empty_cursor != None) {
68 XFreeCursor(GetDisplay(), x11_empty_cursor);
69 x11_empty_cursor = None;
70 }
71 }
72
73 static SDL_Cursor *
74 X11_CreateDefaultCursor()
75 {
76 SDL_Cursor *cursor;
77
78 cursor = SDL_calloc(1, sizeof(*cursor));
79 if (cursor) {
80 /* None is used to indicate the default cursor */
81 cursor->driverdata = (void*)None;
82 } else {
83 SDL_OutOfMemory();
84 }
85
86 return cursor;
87 }
88
89 #if SDL_VIDEO_DRIVER_X11_XCURSOR
90 static Cursor
91 X11_CreateXCursorCursor(SDL_Surface * surface, int hot_x, int hot_y)
92 {
93 Display *display = GetDisplay();
94 Cursor cursor = None;
95 XcursorImage *image;
96
97 image = XcursorImageCreate(surface->w, surface->h);
98 if (!image) {
99 SDL_OutOfMemory();
100 return None;
101 }
102 image->xhot = hot_x;
103 image->yhot = hot_y;
104 image->delay = 0;
105
106 SDL_assert(surface->format->format == SDL_PIXELFORMAT_ARGB8888);
107 SDL_assert(surface->pitch == surface->w * 4);
108 SDL_memcpy(image->pixels, surface->pixels, surface->h * surface->pitch);
109
110 cursor = XcursorImageLoadCursor(display, image);
111
112 XcursorImageDestroy(image);
113
114 return cursor;
115 }
116 #endif /* SDL_VIDEO_DRIVER_X11_XCURSOR */
117
118 static Cursor
119 X11_CreatePixmapCursor(SDL_Surface * surface, int hot_x, int hot_y)
120 {
121 Display *display = GetDisplay();
122 XColor fg, bg;
123 Cursor cursor = None;
124 Uint32 *ptr;
125 Uint8 *data_bits, *mask_bits;
126 Pixmap data_pixmap, mask_pixmap;
127 int x, y;
128 unsigned int rfg, gfg, bfg, rbg, gbg, bbg, fgBits, bgBits;
129 unsigned int width_bytes = ((surface->w + 7) & ~7) / 8;
130
131 data_bits = SDL_calloc(1, surface->h * width_bytes);
132 if (!data_bits) {
133 SDL_OutOfMemory();
134 return None;
135 }
136
137 mask_bits = SDL_calloc(1, surface->h * width_bytes);
138 if (!mask_bits) {
139 SDL_free(data_bits);
140 SDL_OutOfMemory();
141 return None;
142 }
143
144 /* Code below assumes ARGB pixel format */
145 SDL_assert(surface->format->format == SDL_PIXELFORMAT_ARGB8888);
146
147 rfg = gfg = bfg = rbg = gbg = bbg = fgBits = bgBits = 0;
148 for (y = 0; y < surface->h; ++y) {
149 ptr = (Uint32 *)((Uint8 *)surface->pixels + y * surface->pitch);
150 for (x = 0; x < surface->w; ++x) {
151 int alpha = (*ptr >> 24) & 0xff;
152 int red = (*ptr >> 16) & 0xff;
153 int green = (*ptr >> 8) & 0xff;
154 int blue = (*ptr >> 0) & 0xff;
155 if (alpha > 25) {
156 mask_bits[y * width_bytes + x / 8] |= (0x01 << (x % 8));
157
158 if ((red + green + blue) > 0x40) {
159 fgBits++;
160 rfg += red;
161 gfg += green;
162 bfg += blue;
163 data_bits[y * width_bytes + x / 8] |= (0x01 << (x % 8));
164 } else {
165 bgBits++;
166 rbg += red;
167 gbg += green;
168 bbg += blue;
169 }
170 }
171 ++ptr;
172 }
173 }
174
175 if (fgBits) {
176 fg.red = rfg * 257 / fgBits;
177 fg.green = gfg * 257 / fgBits;
178 fg.blue = bfg * 257 / fgBits;
179 }
180 else fg.red = fg.green = fg.blue = 0;
181
182 if (bgBits) {
183 bg.red = rbg * 257 / bgBits;
184 bg.green = gbg * 257 / bgBits;
185 bg.blue = bbg * 257 / bgBits;
186 }
187 else bg.red = bg.green = bg.blue = 0;
188
189 data_pixmap = XCreateBitmapFromData(display, DefaultRootWindow(display),
190 (char*)data_bits,
191 surface->w, surface->h);
192 mask_pixmap = XCreateBitmapFromData(display, DefaultRootWindow(display),
193 (char*)mask_bits,
194 surface->w, surface->h);
195 cursor = XCreatePixmapCursor(display, data_pixmap, mask_pixmap,
196 &fg, &bg, hot_x, hot_y);
197 XFreePixmap(display, data_pixmap);
198 XFreePixmap(display, mask_pixmap);
199
200 return cursor;
201 }
202
203 static SDL_Cursor *
204 X11_CreateCursor(SDL_Surface * surface, int hot_x, int hot_y)
205 {
206 SDL_Cursor *cursor;
207
208 cursor = SDL_calloc(1, sizeof(*cursor));
209 if (cursor) {
210 Cursor x11_cursor = None;
211
212 #if SDL_VIDEO_DRIVER_X11_XCURSOR
213 if (SDL_X11_HAVE_XCURSOR) {
214 x11_cursor = X11_CreateXCursorCursor(surface, hot_x, hot_y);
215 }
216 #endif
217 if (x11_cursor == None) {
218 x11_cursor = X11_CreatePixmapCursor(surface, hot_x, hot_y);
219 }
220 cursor->driverdata = (void*)x11_cursor;
221 } else {
222 SDL_OutOfMemory();
223 }
224
225 return cursor;
226 }
227
228 static SDL_Cursor *
229 X11_CreateSystemCursor(SDL_SystemCursor id)
230 {
231 SDL_Cursor *cursor;
232 unsigned int shape;
233
234 switch(id)
235 {
236 default:
237 SDL_assert(0);
238 return NULL;
239 /* X Font Cursors reference: */
240 /* http://tronche.com/gui/x/xlib/appendix/b/ */
241 case SDL_SYSTEM_CURSOR_ARROW: shape = XC_left_ptr; break;
242 case SDL_SYSTEM_CURSOR_IBEAM: shape = XC_xterm; break;
243 case SDL_SYSTEM_CURSOR_WAIT: shape = XC_watch; break;
244 case SDL_SYSTEM_CURSOR_CROSSHAIR: shape = XC_tcross; break;
245 case SDL_SYSTEM_CURSOR_WAITARROW: shape = XC_watch; break;
246 case SDL_SYSTEM_CURSOR_SIZENWSE: shape = XC_fleur; break;
247 case SDL_SYSTEM_CURSOR_SIZENESW: shape = XC_fleur; break;
248 case SDL_SYSTEM_CURSOR_SIZEWE: shape = XC_sb_h_double_arrow; break;
249 case SDL_SYSTEM_CURSOR_SIZENS: shape = XC_sb_v_double_arrow; break;
250 case SDL_SYSTEM_CURSOR_SIZEALL: shape = XC_fleur; break;
251 case SDL_SYSTEM_CURSOR_NO: shape = XC_pirate; break;
252 case SDL_SYSTEM_CURSOR_HAND: shape = XC_hand2; break;
253 }
254
255 cursor = SDL_calloc(1, sizeof(*cursor));
256 if (cursor) {
257 Cursor x11_cursor;
258
259 x11_cursor = XCreateFontCursor(GetDisplay(), shape);
260
261 cursor->driverdata = (void*)x11_cursor;
262 } else {
263 SDL_OutOfMemory();
264 }
265
266 return cursor;
267 }
268
269 static void
270 X11_FreeCursor(SDL_Cursor * cursor)
271 {
272 Cursor x11_cursor = (Cursor)cursor->driverdata;
273
274 if (x11_cursor != None) {
275 XFreeCursor(GetDisplay(), x11_cursor);
276 }
277 SDL_free(cursor);
278 }
279
280 static int
281 X11_ShowCursor(SDL_Cursor * cursor)
282 {
283 Cursor x11_cursor = 0;
284
285 if (cursor) {
286 x11_cursor = (Cursor)cursor->driverdata;
287 } else {
288 x11_cursor = X11_CreateEmptyCursor();
289 }
290
291 /* FIXME: Is there a better way than this? */
292 {
293 SDL_VideoDevice *video = SDL_GetVideoDevice();
294 Display *display = GetDisplay();
295 SDL_Window *window;
296 SDL_WindowData *data;
297
298 for (window = video->windows; window; window = window->next) {
299 data = (SDL_WindowData *)window->driverdata;
300 if (x11_cursor != None) {
301 XDefineCursor(display, data->xwindow, x11_cursor);
302 } else {
303 XUndefineCursor(display, data->xwindow);
304 }
305 }
306 XFlush(display);
307 }
308 return 0;
309 }
310
311 static void
312 X11_WarpMouse(SDL_Window * window, int x, int y)
313 {
314 SDL_WindowData *data = (SDL_WindowData *) window->driverdata;
315 Display *display = data->videodata->display;
316
317 XWarpPointer(display, None, data->xwindow, 0, 0, 0, 0, x, y);
318 XSync(display, False);
319 }
320
321 static int
322 X11_SetRelativeMouseMode(SDL_bool enabled)
323 {
324 #if SDL_VIDEO_DRIVER_X11_XINPUT2
325 if(X11_Xinput2IsInitialized())
326 return 0;
327 #else
328 SDL_Unsupported();
329 #endif
330 return -1;
331 }
332
333 void
334 X11_InitMouse(_THIS)
335 {
336 SDL_Mouse *mouse = SDL_GetMouse();
337
338 mouse->CreateCursor = X11_CreateCursor;
339 mouse->CreateSystemCursor = X11_CreateSystemCursor;
340 mouse->ShowCursor = X11_ShowCursor;
341 mouse->FreeCursor = X11_FreeCursor;
342 mouse->WarpMouse = X11_WarpMouse;
343 mouse->SetRelativeMouseMode = X11_SetRelativeMouseMode;
344
345 SDL_SetDefaultCursor(X11_CreateDefaultCursor());
346 }
347
348 void
349 X11_QuitMouse(_THIS)
350 {
351 X11_DestroyEmptyCursor();
352 }
353
354 #endif /* SDL_VIDEO_DRIVER_X11 */
355
356 /* vi: set ts=4 sw=4 expandtab: */
SDL_Window::next
SDL_Window * next
Definition: SDL_sysvideo.h:102
SDL_VideoData::display
Display * display
Definition: SDL_x11video.h:75
SDL_GetMouse
SDL_Mouse * SDL_GetMouse(void)
Definition: SDL_mouse.c:62
XWarpPointer
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int int int return Display Window Cursor return Display Window return Display Drawable GC int int unsigned int unsigned int return Display Drawable GC int int _Xconst char int return Display Drawable GC int int unsigned int unsigned int return Display return Display Cursor return Display GC return XModifierKeymap return char Display Window int return Display return Display Atom return Display Window XWindowAttributes return Display Window return Display XEvent Bool(*) XPointer return Display Window Bool unsigned int int int Window Cursor Time return Display Window int return KeySym return Display _Xconst char Bool return Display _Xconst char return XKeyEvent char int KeySym XComposeStatus return Display int int int XVisualInfo return Display Window int int return _Xconst char return Display XEvent return Display Drawable GC XImage int int int int unsigned int unsigned int return Display Window Window Window int int int int unsigned int return Display Window Window int int return Display Window unsigned int unsigned int return Display Window Bool long XEvent return Display GC unsigned long return Display Window int Time return Display Window Window return Display Window unsigned long return Display Window XSizeHints Display Colormap XColor int return char int XTextProperty return XFontStruct _Xconst char int int int int XCharStruct return Display Window return Display Time return Display Colormap retur XWarpPointer)
Definition: SDL_x11sym.h:128
SDL_SYSTEM_CURSOR_ARROW
Definition: SDL_mouse.h:48
SDL_calloc
DECLSPEC void *SDLCALL SDL_calloc(size_t nmemb, size_t size)
color
GLuint color
Definition: glew.h:7185
NULL
#define NULL
Definition: ftobjs.h:61
SDL_Surface::h
int h
Definition: SDL_surface.h:73
SDL_SYSTEM_CURSOR_HAND
Definition: SDL_mouse.h:59
SDL_x11mouse.h
XFlush
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int int int return Display Window Cursor return Display Window return Display Drawable GC int int unsigned int unsigned int return Display Drawable GC int int _Xconst char int return Display Drawable GC int int unsigned int unsigned int retur XFlush)
Definition: SDL_x11sym.h:54
SDL_bool
SDL_bool
Definition: SDL_stdinc.h:116
enabled
GLenum GLsizei const GLuint GLboolean enabled
Definition: glew.h:2538
SDL_WindowData::xwindow
Window xwindow
Definition: SDL_x11window.h:47
x
EGLSurface EGLint x
Definition: eglext.h:293
surface
EGLSurface surface
Definition: eglext.h:74
SDL_Surface
A collection of pixels used in software blitting.
Definition: SDL_surface.h:69
SDL_Cursor
Definition: SDL_mouse_c.h:30
SDL_free
DECLSPEC void SDLCALL SDL_free(void *mem)
green
GLclampf green
Definition: glew.h:1506
X11_InitMouse
void X11_InitMouse(_THIS)
display
char * display
Definition: visualinfo.c:85
SDL_Surface::w
int w
Definition: SDL_surface.h:73
if
if(!yyg->yy_init)
Definition: glslang_lex.cpp:1037
XDefineCursor
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int int int retur XDefineCursor)
Definition: SDL_x11sym.h:44
SDL_config.h
image
EGLImageKHR image
Definition: eglext.h:88
SDL_SYSTEM_CURSOR_SIZEALL
Definition: SDL_mouse.h:57
SDL_WindowData
Definition: SDL_androidwindow.h:33
red
const GLubyte GLuint red
Definition: SDL_glfuncs.h:57
XCreatePixmapCursor
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int retur XCreatePixmapCursor)
Definition: SDL_x11sym.h:38
SDL_SYSTEM_CURSOR_SIZEWE
Definition: SDL_mouse.h:55
Uint32
uint32_t Uint32
An unsigned 32-bit integer type.
Definition: SDL_stdinc.h:145
SDL_Mouse::FreeCursor
void(* FreeCursor)(SDL_Cursor *cursor)
Definition: SDL_mouse_c.h:51
XUndefineCursor
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int int int return Display Window Cursor return Display Window return Display Drawable GC int int unsigned int unsigned int return Display Drawable GC int int _Xconst char int return Display Drawable GC int int unsigned int unsigned int return Display return Display Cursor return Display GC return XModifierKeymap return char Display Window int return Display return Display Atom return Display Window XWindowAttributes return Display Window return Display XEvent Bool(*) XPointer return Display Window Bool unsigned int int int Window Cursor Time return Display Window int return KeySym return Display _Xconst char Bool return Display _Xconst char return XKeyEvent char int KeySym XComposeStatus return Display int int int XVisualInfo return Display Window int int return _Xconst char return Display XEvent return Display Drawable GC XImage int int int int unsigned int unsigned int return Display Window Window Window int int int int unsigned int return Display Window Window int int return Display Window unsigned int unsigned int return Display Window Bool long XEvent return Display GC unsigned long return Display Window int Time return Display Window Window return Display Window unsigned long return Display Window XSizeHints Display Colormap XColor int return char int XTextProperty return XFontStruct _Xconst char int int int int XCharStruct retur XUndefineCursor)
Definition: SDL_x11sym.h:122
SDL_Mouse::CreateCursor
SDL_Cursor *(* CreateCursor)(SDL_Surface *surface, int hot_x, int hot_y)
Definition: SDL_mouse_c.h:39
data
GLint GLenum GLsizei GLsizei GLsizei GLint GLsizei const GLvoid * data
Definition: gl2ext.h:848
SDL_Surface::pixels
void * pixels
Definition: SDL_surface.h:75
SDL_SYSTEM_CURSOR_SIZENWSE
Definition: SDL_mouse.h:53
_THIS
#define _THIS
Definition: SDL_alsa_audio.h:31
SDL_WindowData::videodata
struct SDL_VideoData * videodata
Definition: SDL_cocoawindow.h:90
SDL_Mouse::ShowCursor
int(* ShowCursor)(SDL_Cursor *cursor)
Definition: SDL_mouse_c.h:45
SDL_SystemCursor
SDL_SystemCursor
Cursor types for SDL_CreateSystemCursor.
Definition: SDL_mouse.h:46
SDL_Mouse::SetRelativeMouseMode
int(* SetRelativeMouseMode)(SDL_bool enabled)
Definition: SDL_mouse_c.h:57
alpha
GLclampf GLclampf GLclampf alpha
Definition: glew.h:1506
SDL_VideoDevice::windows
SDL_Window * windows
Definition: SDL_sysvideo.h:266
SDL_SetDefaultCursor
void SDL_SetDefaultCursor(SDL_Cursor *cursor)
Definition: SDL_mouse.c:51
X11_QuitMouse
void X11_QuitMouse(_THIS)
SDL_x11xinput2.h
SDL_assert
#define SDL_assert(condition)
Definition: SDL_assert.h:159
SDL_SYSTEM_CURSOR_CROSSHAIR
Definition: SDL_mouse.h:51
y
EGLSurface EGLint EGLint y
Definition: eglext.h:293
SDL_PIXELFORMAT_ARGB8888
Definition: SDL_pixels.h:224
SDL_OutOfMemory
#define SDL_OutOfMemory()
Definition: SDL_error.h:52
SDL_Surface::format
SDL_PixelFormat * format
Definition: SDL_surface.h:72
XCreateBitmapFromData
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display retur XCreateBitmapFromData)
Definition: SDL_x11sym.h:36
pixmap
EGLConfig struct EGLClientPixmapHI * pixmap
Definition: eglext.h:257
SDL_SYSTEM_CURSOR_WAIT
Definition: SDL_mouse.h:50
SDL_memcpy
DECLSPEC void *SDLCALL SDL_memcpy(void *dst, const void *src, size_t len)
Definition: SDL_string.c:293
Uint8
uint8_t Uint8
An unsigned 8-bit integer type.
Definition: SDL_stdinc.h:129
SDL_Window
Definition: SDL_sysvideo.h:71
SDL_SYSTEM_CURSOR_IBEAM
Definition: SDL_mouse.h:49
SDL_Surface::pitch
int pitch
Definition: SDL_surface.h:74
SDL_VideoDevice
Definition: SDL_sysvideo.h:135
SDL_x11video.h
SDL_SYSTEM_CURSOR_SIZENESW
Definition: SDL_mouse.h:54
SDL_VideoData
Definition: SDL_androidvideo.h:35
SDL_GetVideoDevice
SDL_VideoDevice * SDL_GetVideoDevice(void)
Definition: SDL_video.c:548
SDL_Mouse
Definition: SDL_mouse_c.h:36
SDL_zero
#define SDL_zero(x)
Definition: SDL_stdinc.h:254
SDL_SYSTEM_CURSOR_NO
Definition: SDL_mouse.h:58
XFreeCursor
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int int int return Display Window Cursor return Display Window return Display Drawable GC int int unsigned int unsigned int return Display Drawable GC int int _Xconst char int return Display Drawable GC int int unsigned int unsigned int return Display retur XFreeCursor)
Definition: SDL_x11sym.h:56
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void * driverdata
Definition: SDL_sysvideo.h:99
X11_Xinput2IsInitialized
int X11_Xinput2IsInitialized(void)
SDL_PixelFormat::format
Uint32 format
Definition: SDL_pixels.h:274
SDL_SYSTEM_CURSOR_SIZENS
Definition: SDL_mouse.h:56
SDL_SYSTEM_CURSOR_WAITARROW
Definition: SDL_mouse.h:52
blue
GLclampf GLclampf blue
Definition: glew.h:1506
SDL_Cursor::driverdata
void * driverdata
Definition: SDL_mouse_c.h:33
SDL_Unsupported
#define SDL_Unsupported()
Definition: SDL_error.h:53
SDL_Mouse::CreateSystemCursor
SDL_Cursor *(* CreateSystemCursor)(SDL_SystemCursor id)
Definition: SDL_mouse_c.h:42
SDL_Mouse::WarpMouse
void(* WarpMouse)(SDL_Window *window, int x, int y)
Definition: SDL_mouse_c.h:54
SDL_assert.h