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Diffstat (limited to 'libraries/ecore/src/lib/ecore_x/xlib/ecore_x_vsync.c')
-rw-r--r--libraries/ecore/src/lib/ecore_x/xlib/ecore_x_vsync.c351
1 files changed, 0 insertions, 351 deletions
diff --git a/libraries/ecore/src/lib/ecore_x/xlib/ecore_x_vsync.c b/libraries/ecore/src/lib/ecore_x/xlib/ecore_x_vsync.c
deleted file mode 100644
index 4296bb2..0000000
--- a/libraries/ecore/src/lib/ecore_x/xlib/ecore_x_vsync.c
+++ /dev/null
@@ -1,351 +0,0 @@
1#ifdef HAVE_CONFIG_H
2# include <config.h>
3#endif /* ifdef HAVE_CONFIG_H */
4
5#include "Ecore.h"
6#include "ecore_x_private.h"
7#include "Ecore_X.h"
8
9#include <string.h>
10#include <stdlib.h>
11#include <string.h>
12#include <unistd.h>
13#include <dlfcn.h>
14#include <sys/types.h>
15#include <sys/stat.h>
16#include <fcntl.h>
17
18#define ECORE_X_VSYNC_DRI2 1
19
20#ifdef ECORE_X_VSYNC_DRI2
21// relevant header bits of dri/drm inlined here to avoid needing external
22// headers to build
23/// drm
24typedef unsigned int drm_magic_t;
25
26typedef enum
27{
28 DRM_VBLANK_ABSOLUTE = 0x00000000,
29 DRM_VBLANK_RELATIVE = 0x00000001,
30 DRM_VBLANK_EVENT = 0x04000000,
31 DRM_VBLANK_FLIP = 0x08000000,
32 DRM_VBLANK_NEXTONMISS = 0x10000000,
33 DRM_VBLANK_SECONDARY = 0x20000000,
34 DRM_VBLANK_SIGNAL = 0x40000000
35}
36drmVBlankSeqType;
37
38typedef struct _drmVBlankReq
39{
40 drmVBlankSeqType type;
41 unsigned int sequence;
42 unsigned long signal;
43} drmVBlankReq;
44
45typedef struct _drmVBlankReply
46{
47 drmVBlankSeqType type;
48 unsigned int sequence;
49 long tval_sec;
50 long tval_usec;
51} drmVBlankReply;
52
53typedef union _drmVBlank
54{
55 drmVBlankReq request;
56 drmVBlankReply reply;
57} drmVBlank;
58
59#define DRM_EVENT_CONTEXT_VERSION 2
60
61typedef struct _drmEventContext
62{
63 int version;
64 void (*vblank_handler)(int fd,
65 unsigned int sequence,
66 unsigned int tv_sec,
67 unsigned int tv_usec,
68 void *user_data);
69 void (*page_flip_handler)(int fd,
70 unsigned int sequence,
71 unsigned int tv_sec,
72 unsigned int tv_usec,
73 void *user_data);
74} drmEventContext;
75
76static int (*sym_drmClose)(int fd) = NULL;
77static int (*sym_drmGetMagic)(int fd,
78 drm_magic_t *magic) = NULL;
79static int (*sym_drmWaitVBlank)(int fd,
80 drmVBlank *vbl) = NULL;
81static int (*sym_drmHandleEvent)(int fd,
82 drmEventContext *evctx) = NULL;
83
84//// dri
85
86static Bool (*sym_DRI2QueryExtension)(Display *display,
87 int *eventBase,
88 int *errorBase) = NULL;
89static Bool (*sym_DRI2QueryVersion)(Display *display,
90 int *major,
91 int *minor) = NULL;
92static Bool (*sym_DRI2Connect)(Display *display,
93 XID window,
94 char **driverName,
95 char **deviceName) = NULL;
96static Bool (*sym_DRI2Authenticate)(Display *display,
97 XID window,
98 drm_magic_t magic) = NULL;
99
100//// dri/drm data needed
101static int dri2_event = 0;
102static int dri2_error = 0;
103static int dri2_major = 0;
104static int dri2_minor = 0;
105static char *device_name = 0;
106static char *driver_name = 0;
107static drm_magic_t drm_magic;
108
109static int drm_fd = -1;
110static int drm_event_is_busy = 0;
111static int drm_animators_interval = 1;
112static drmEventContext drm_evctx;
113static Ecore_Fd_Handler *dri_drm_fdh = NULL;
114
115static void *dri_lib = NULL;
116static void *drm_lib = NULL;
117
118static Window dri_drm_vsync_root = 0;
119
120static void
121_dri_drm_tick_schedule(void)
122{
123 drmVBlank vbl;
124
125 vbl.request.type = DRM_VBLANK_RELATIVE | DRM_VBLANK_EVENT;
126 vbl.request.sequence = drm_animators_interval;
127 vbl.request.signal = 0;
128 sym_drmWaitVBlank(drm_fd, &vbl);
129}
130
131static void
132_dri_drm_tick_begin(void *data __UNUSED__)
133{
134 drm_event_is_busy = 1;
135 _dri_drm_tick_schedule();
136}
137
138static void
139_dri_drm_tick_end(void *data __UNUSED__)
140{
141 drm_event_is_busy = 0;
142}
143
144static void
145_dri_drm_vblank_handler(int fd __UNUSED__,
146 unsigned int frame __UNUSED__,
147 unsigned int sec __UNUSED__,
148 unsigned int usec __UNUSED__,
149 void *data __UNUSED__)
150{
151 ecore_animator_custom_tick();
152 if (drm_event_is_busy) _dri_drm_tick_schedule();
153}
154
155static Eina_Bool
156_dri_drm_cb(void *data __UNUSED__,
157 Ecore_Fd_Handler *fd_handler __UNUSED__)
158{
159 sym_drmHandleEvent(drm_fd, &drm_evctx);
160 return ECORE_CALLBACK_RENEW;
161}
162
163// yes. most evil. we dlopen libdrm and libGL etc. to manually find smbols
164// so we can be as compatible as possible given the whole mess of the
165// gl/dri/drm etc. world. and handle graceful failure at runtime not
166// compile time
167static int
168_dri_drm_link(void)
169{
170 const char *drm_libs[] =
171 {
172 "libdrm.so.2",
173 "libdrm.so.1",
174 "libdrm.so.0",
175 "libdrm.so",
176 NULL,
177 };
178 const char *dri_libs[] =
179 {
180 "libdri2.so.2",
181 "libdri2.so.1",
182 "libdri2.so.0",
183 "libdri2.so",
184 "libGL.so.4",
185 "libGL.so.3",
186 "libGL.so.2",
187 "libGL.so.1",
188 "libGL.so.0",
189 "libGL.so",
190 NULL,
191 };
192 int i, fail;
193#define SYM(lib, xx) \
194 do { \
195 sym_ ## xx = dlsym(lib, #xx); \
196 if (!(sym_ ## xx)) { \
197 fprintf(stderr, "%s\n", dlerror()); \
198 fail = 1; \
199 } \
200 } while (0)
201
202 if (dri_lib) return 1;
203 for (i = 0; drm_libs[i]; i++)
204 {
205 drm_lib = dlopen(drm_libs[i], RTLD_LOCAL | RTLD_LAZY);
206 if (drm_lib)
207 {
208 fail = 0;
209 SYM(drm_lib, drmClose);
210 SYM(drm_lib, drmWaitVBlank);
211 SYM(drm_lib, drmHandleEvent);
212 if (fail)
213 {
214 dlclose(drm_lib);
215 drm_lib = NULL;
216 }
217 else break;
218 }
219 }
220 if (!drm_lib) return 0;
221 for (i = 0; dri_libs[i]; i++)
222 {
223 dri_lib = dlopen(dri_libs[i], RTLD_LOCAL | RTLD_LAZY);
224 if (dri_lib)
225 {
226 fail = 0;
227 SYM(dri_lib, DRI2QueryExtension);
228 SYM(dri_lib, DRI2QueryVersion);
229 SYM(dri_lib, DRI2Connect);
230 SYM(dri_lib, DRI2Authenticate);
231 if (fail)
232 {
233 dlclose(dri_lib);
234 dri_lib = NULL;
235 }
236 else break;
237 }
238 }
239 if (!dri_lib)
240 {
241 dlclose(drm_lib);
242 drm_lib = NULL;
243 return 0;
244 }
245 return 1;
246}
247
248static int
249_dri_drm_init(void)
250{
251 if (!sym_DRI2QueryExtension(_ecore_x_disp, &dri2_event, &dri2_error))
252 return 0;
253 if (!sym_DRI2QueryVersion(_ecore_x_disp, &dri2_major, &dri2_minor))
254 return 0;
255 if (dri2_major < 2)
256 return 0;
257 if (!sym_DRI2Connect(_ecore_x_disp, dri_drm_vsync_root, &driver_name, &device_name))
258 return 0;
259 drm_fd = open(device_name, O_RDWR);
260 if (drm_fd < 0)
261 return 0;
262 sym_drmGetMagic(drm_fd, &drm_magic);
263 if (!sym_DRI2Authenticate(_ecore_x_disp, dri_drm_vsync_root, drm_magic))
264 {
265 close(drm_fd);
266 drm_fd = -1;
267 return 0;
268 }
269 memset(&drm_evctx, 0, sizeof(drm_evctx));
270 drm_evctx.version = DRM_EVENT_CONTEXT_VERSION;
271 drm_evctx.vblank_handler = _dri_drm_vblank_handler;
272 drm_evctx.page_flip_handler = NULL;
273
274 dri_drm_fdh = ecore_main_fd_handler_add(drm_fd, ECORE_FD_READ,
275 _dri_drm_cb, NULL, NULL, NULL);
276 if (!dri_drm_fdh)
277 {
278 close(drm_fd);
279 drm_fd = -1;
280 return 0;
281 }
282 return 1;
283}
284
285static void
286_dri_drm_shutdown(void)
287{
288 if (drm_fd >= 0)
289 {
290 close(drm_fd);
291 drm_fd = -1;
292 }
293 if (dri_drm_fdh)
294 {
295 ecore_main_fd_handler_del(dri_drm_fdh);
296 dri_drm_fdh = NULL;
297 }
298}
299
300#endif
301
302EAPI Eina_Bool
303ecore_x_vsync_animator_tick_source_set(Ecore_X_Window win)
304{
305#ifdef ECORE_X_VSYNC_DRI2
306 Ecore_X_Window root;
307
308 root = ecore_x_window_root_get(win);
309 if (root != dri_drm_vsync_root)
310 {
311 dri_drm_vsync_root = root;
312 if (dri_drm_vsync_root)
313 {
314 if (!_dri_drm_link())
315 {
316 ecore_animator_source_set(ECORE_ANIMATOR_SOURCE_TIMER);
317 return EINA_FALSE;
318 }
319 _dri_drm_shutdown();
320 if (!_dri_drm_init())
321 {
322 dri_drm_vsync_root = 0;
323 ecore_animator_source_set(ECORE_ANIMATOR_SOURCE_TIMER);
324 return EINA_FALSE;
325 }
326 ecore_animator_custom_source_tick_begin_callback_set
327 (_dri_drm_tick_begin, NULL);
328 ecore_animator_custom_source_tick_end_callback_set
329 (_dri_drm_tick_end, NULL);
330 ecore_animator_source_set(ECORE_ANIMATOR_SOURCE_CUSTOM);
331 }
332 else
333 {
334 if (drm_fd >= 0)
335 {
336 _dri_drm_shutdown();
337 ecore_animator_custom_source_tick_begin_callback_set
338 (NULL, NULL);
339 ecore_animator_custom_source_tick_end_callback_set
340 (NULL, NULL);
341 ecore_animator_source_set(ECORE_ANIMATOR_SOURCE_TIMER);
342 }
343 }
344 }
345 return EINA_TRUE;
346#else
347 return EINA_FALSE;
348 win = 0;
349#endif
350}
351
generated by cgit v1.1 at 2024-07-17 20:15:07 +0000