1 | /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * |
2 | * Mupen64plus - osd.cpp * |
3 | * Mupen64Plus homepage: https://mupen64plus.org/ * |
4 | * Copyright (C) 2008 Nmn Ebenblues * |
5 | * * |
6 | * This program is free software; you can redistribute it and/or modify * |
7 | * it under the terms of the GNU General Public License as published by * |
8 | * the Free Software Foundation; either version 2 of the License, or * |
9 | * (at your option) any later version. * |
10 | * * |
11 | * This program is distributed in the hope that it will be useful, * |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of * |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * |
14 | * GNU General Public License for more details. * |
15 | * * |
16 | * You should have received a copy of the GNU General Public License * |
17 | * along with this program; if not, write to the * |
18 | * Free Software Foundation, Inc., * |
19 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * |
20 | * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */ |
21 | |
22 | #include "osd.h" |
23 | |
24 | #include "oglft_c.h" |
25 | |
26 | #include <SDL.h> |
27 | #include <SDL_opengl.h> |
28 | #include <SDL_thread.h> |
29 | |
30 | #include <stdarg.h> |
31 | #include <stdio.h> |
32 | #include <stdlib.h> |
33 | #include <string.h> |
34 | |
35 | #define M64P_CORE_PROTOTYPES 1 |
36 | #include "api/m64p_config.h" |
37 | #include "api/m64p_vidext.h" |
38 | #include "api/callbacks.h" |
39 | |
40 | #define FONT_FILENAME "font.ttf" |
41 | |
42 | typedef void (APIENTRYP PTRGLACTIVETEXTURE)(GLenum texture); |
43 | static PTRGLACTIVETEXTURE pglActiveTexture = NULL; |
44 | |
45 | // static variables for OSD |
46 | static int l_OsdInitialized = 0; |
47 | |
48 | static LIST_HEAD(l_messageQueue); |
49 | static struct OGLFT_Face* l_font; |
50 | static float l_fLineHeight = -1.0; |
51 | |
52 | static void animation_none(osd_message_t *); |
53 | static void animation_fade(osd_message_t *); |
54 | static void osd_remove_message(osd_message_t *msg); |
55 | static osd_message_t * osd_message_valid(osd_message_t *testmsg); |
56 | |
57 | static float fCornerScroll[OSD_NUM_CORNERS]; |
58 | |
59 | static SDL_mutex *osd_list_lock; |
60 | |
61 | // animation handlers |
62 | static void (*l_animations[OSD_NUM_ANIM_TYPES])(osd_message_t *) = { |
63 | animation_none, // animation handler for OSD_NONE |
64 | animation_fade // animation handler for OSD_FADE |
65 | }; |
66 | |
67 | // private functions |
68 | // draw message on screen |
69 | static void draw_message(osd_message_t *msg, int width, int height) |
70 | { |
71 | float x = 0., |
72 | y = 0.; |
73 | |
74 | if (!l_font || !OGLFT_Face_isValid(l_font)) |
75 | return; |
76 | |
77 | // set color. alpha is hard coded to 1. animation can change this |
78 | OGLFT_Face_setForegroundColor(l_font, msg->color[R], msg->color[G], msg->color[B], 1.f); |
79 | OGLFT_Face_setBackgroundColor(l_font, 0.f, 0.f, 0.f, 0.f); |
80 | |
81 | // set justification based on corner |
82 | switch(msg->corner) |
83 | { |
84 | case OSD_TOP_LEFT: |
85 | OGLFT_Face_setVerticalJustification(l_font, OGLFT_FACE_VERTICAL_JUSTIFICATION_TOP); |
86 | OGLFT_Face_setHorizontalJustification(l_font, OGLFT_FACE_HORIZONTAL_JUSTIFICATION_LEFT); |
87 | x = 0.; |
88 | y = (float)height; |
89 | break; |
90 | case OSD_TOP_CENTER: |
91 | OGLFT_Face_setVerticalJustification(l_font, OGLFT_FACE_VERTICAL_JUSTIFICATION_TOP); |
92 | OGLFT_Face_setHorizontalJustification(l_font, OGLFT_FACE_HORIZONTAL_JUSTIFICATION_CENTER); |
93 | x = ((float)width)/2.0f; |
94 | y = (float)height; |
95 | break; |
96 | case OSD_TOP_RIGHT: |
97 | OGLFT_Face_setVerticalJustification(l_font, OGLFT_FACE_VERTICAL_JUSTIFICATION_TOP); |
98 | OGLFT_Face_setHorizontalJustification(l_font, OGLFT_FACE_HORIZONTAL_JUSTIFICATION_RIGHT); |
99 | x = (float)width; |
100 | y = (float)height; |
101 | break; |
102 | case OSD_MIDDLE_LEFT: |
103 | OGLFT_Face_setVerticalJustification(l_font, OGLFT_FACE_VERTICAL_JUSTIFICATION_MIDDLE); |
104 | OGLFT_Face_setHorizontalJustification(l_font, OGLFT_FACE_HORIZONTAL_JUSTIFICATION_LEFT); |
105 | x = 0.; |
106 | y = ((float)height)/2.0f; |
107 | break; |
108 | case OSD_MIDDLE_CENTER: |
109 | OGLFT_Face_setVerticalJustification(l_font, OGLFT_FACE_VERTICAL_JUSTIFICATION_MIDDLE); |
110 | OGLFT_Face_setHorizontalJustification(l_font, OGLFT_FACE_HORIZONTAL_JUSTIFICATION_CENTER); |
111 | x = ((float)width)/2.0f; |
112 | y = ((float)height)/2.0f; |
113 | break; |
114 | case OSD_MIDDLE_RIGHT: |
115 | OGLFT_Face_setVerticalJustification(l_font, OGLFT_FACE_VERTICAL_JUSTIFICATION_MIDDLE); |
116 | OGLFT_Face_setHorizontalJustification(l_font, OGLFT_FACE_HORIZONTAL_JUSTIFICATION_RIGHT); |
117 | x = (float)width; |
118 | y = ((float)height)/2.0f; |
119 | break; |
120 | case OSD_BOTTOM_LEFT: |
121 | OGLFT_Face_setVerticalJustification(l_font, OGLFT_FACE_VERTICAL_JUSTIFICATION_BOTTOM); |
122 | OGLFT_Face_setHorizontalJustification(l_font, OGLFT_FACE_HORIZONTAL_JUSTIFICATION_LEFT); |
123 | x = 0.; |
124 | y = 0.; |
125 | break; |
126 | case OSD_BOTTOM_CENTER: |
127 | OGLFT_Face_setVerticalJustification(l_font, OGLFT_FACE_VERTICAL_JUSTIFICATION_BOTTOM); |
128 | OGLFT_Face_setHorizontalJustification(l_font, OGLFT_FACE_HORIZONTAL_JUSTIFICATION_CENTER); |
129 | x = ((float)width)/2.0f; |
130 | y = 0.; |
131 | break; |
132 | case OSD_BOTTOM_RIGHT: |
133 | OGLFT_Face_setVerticalJustification(l_font, OGLFT_FACE_VERTICAL_JUSTIFICATION_BOTTOM); |
134 | OGLFT_Face_setHorizontalJustification(l_font, OGLFT_FACE_HORIZONTAL_JUSTIFICATION_RIGHT); |
135 | x = (float)width; |
136 | y = 0.; |
137 | break; |
138 | default: |
139 | OGLFT_Face_setVerticalJustification(l_font, OGLFT_FACE_VERTICAL_JUSTIFICATION_BOTTOM); |
140 | OGLFT_Face_setHorizontalJustification(l_font, OGLFT_FACE_HORIZONTAL_JUSTIFICATION_LEFT); |
141 | x = 0.; |
142 | y = 0.; |
143 | break; |
144 | } |
145 | |
146 | // apply animation for current message state |
147 | (*l_animations[msg->animation[msg->state]])(msg); |
148 | |
149 | // xoffset moves message left |
150 | x -= msg->xoffset; |
151 | // yoffset moves message up |
152 | y += msg->yoffset; |
153 | |
154 | // get the bounding box if invalid |
155 | if (msg->sizebox[0] == 0 && msg->sizebox[2] == 0) // xmin and xmax |
156 | { |
157 | OGLFT_Face_measure_nominal(l_font, msg->text, msg->sizebox); |
158 | } |
159 | |
160 | // draw the text line |
161 | OGLFT_Face_draw(l_font, x, y, msg->text, msg->sizebox); |
162 | } |
163 | |
164 | // null animation handler |
165 | static void animation_none(osd_message_t *msg) { } |
166 | |
167 | // fade in/out animation handler |
168 | static void animation_fade(osd_message_t *msg) |
169 | { |
170 | float alpha = 1.; |
171 | float elapsed_frames; |
172 | float total_frames = (float)msg->timeout[msg->state]; |
173 | |
174 | switch(msg->state) |
175 | { |
176 | case OSD_DISAPPEAR: |
177 | elapsed_frames = (float)(total_frames - msg->frames); |
178 | break; |
179 | case OSD_APPEAR: |
180 | default: |
181 | elapsed_frames = (float)msg->frames; |
182 | break; |
183 | } |
184 | |
185 | if(total_frames != 0.) |
186 | alpha = elapsed_frames / total_frames; |
187 | |
188 | OGLFT_Face_setForegroundColor(l_font, msg->color[R], msg->color[G], msg->color[B], alpha); |
189 | } |
190 | |
191 | // sets message Y offset depending on where they are in the message queue |
192 | static float get_message_offset(osd_message_t *msg, float fLinePos) |
193 | { |
194 | float offset = (float) (OGLFT_Face_height(l_font) * fLinePos); |
195 | |
196 | switch(msg->corner) |
197 | { |
198 | case OSD_TOP_LEFT: |
199 | case OSD_TOP_CENTER: |
200 | case OSD_TOP_RIGHT: |
201 | return -offset; |
202 | break; |
203 | default: |
204 | return offset; |
205 | break; |
206 | } |
207 | } |
208 | |
209 | // public functions |
210 | void osd_init(int width, int height) |
211 | { |
212 | const char *fontpath; |
213 | int i; |
214 | |
215 | osd_list_lock = SDL_CreateMutex(); |
216 | if (!osd_list_lock) { |
217 | DebugMessage(M64MSG_ERROR, "Could not create osd list lock" ); |
218 | return; |
219 | } |
220 | |
221 | if (!OGLFT_Init_FT()) |
222 | { |
223 | DebugMessage(M64MSG_ERROR, "Could not initialize freetype library." ); |
224 | return; |
225 | } |
226 | |
227 | fontpath = ConfigGetSharedDataFilepath(FONT_FILENAME); |
228 | |
229 | l_font = OGLFT_Monochrome_create(fontpath, (float) height / 35.f); // make font size proportional to screen height |
230 | |
231 | if (!l_font || !OGLFT_Face_isValid(l_font)) |
232 | { |
233 | DebugMessage(M64MSG_ERROR, "Could not construct face from %s" , fontpath); |
234 | return; |
235 | } |
236 | |
237 | #if SDL_VERSION_ATLEAST(2,0,0) |
238 | int gl_context; |
239 | VidExt_GL_GetAttribute(M64P_GL_CONTEXT_PROFILE_MASK, &gl_context); |
240 | if (gl_context == M64P_GL_CONTEXT_PROFILE_CORE) |
241 | { |
242 | DebugMessage(M64MSG_WARNING, "OSD not compatible with OpenGL core context. OSD deactivated." ); |
243 | return; |
244 | } |
245 | #endif |
246 | |
247 | // clear statics |
248 | for (i = 0; i < OSD_NUM_CORNERS; i++) |
249 | fCornerScroll[i] = 0.0; |
250 | |
251 | glPixelStorei(GL_UNPACK_ALIGNMENT, 1); |
252 | #if defined(GL_RASTER_POSITION_UNCLIPPED_IBM) |
253 | glEnable(GL_RASTER_POSITION_UNCLIPPED_IBM); |
254 | #endif |
255 | |
256 | pglActiveTexture = (PTRGLACTIVETEXTURE) VidExt_GL_GetProcAddress("glActiveTexture" ); |
257 | if (pglActiveTexture == NULL) |
258 | { |
259 | DebugMessage(M64MSG_WARNING, "OpenGL function glActiveTexture() not supported. OSD deactivated." ); |
260 | return; |
261 | } |
262 | |
263 | // set initialized flag |
264 | l_OsdInitialized = 1; |
265 | } |
266 | |
267 | void osd_exit(void) |
268 | { |
269 | osd_message_t *msg, *safe; |
270 | |
271 | // delete font renderer |
272 | if (l_font) |
273 | { |
274 | OGLFT_Face_destroy(l_font); |
275 | l_font = NULL; |
276 | } |
277 | |
278 | // delete message queue |
279 | SDL_LockMutex(osd_list_lock); |
280 | list_for_each_entry_safe_t(msg, safe, &l_messageQueue, osd_message_t, list) { |
281 | osd_remove_message(msg); |
282 | if (!msg->user_managed) |
283 | free(msg); |
284 | } |
285 | SDL_UnlockMutex(osd_list_lock); |
286 | |
287 | // shut down the Freetype library |
288 | OGLFT_Uninit_FT(); |
289 | |
290 | SDL_DestroyMutex(osd_list_lock); |
291 | |
292 | // reset initialized flag |
293 | l_OsdInitialized = 0; |
294 | } |
295 | |
296 | // renders the current osd message queue to the screen |
297 | void osd_render() |
298 | { |
299 | osd_message_t *msg, *safe; |
300 | int i; |
301 | |
302 | // if we're not initialized or list is empty, then just skip it all |
303 | if (!l_OsdInitialized || list_empty(&l_messageQueue)) |
304 | return; |
305 | |
306 | // get the viewport dimensions |
307 | GLint viewport[4]; |
308 | glGetIntegerv(GL_VIEWPORT, viewport); |
309 | |
310 | // save all the attributes |
311 | glPushAttrib(GL_ALL_ATTRIB_BITS); |
312 | bool bFragmentProg = glIsEnabled(GL_FRAGMENT_PROGRAM_ARB) != 0; |
313 | bool bColorArray = glIsEnabled(GL_COLOR_ARRAY) != 0; |
314 | bool bTexCoordArray = glIsEnabled(GL_TEXTURE_COORD_ARRAY) != 0; |
315 | bool bSecColorArray = glIsEnabled(GL_SECONDARY_COLOR_ARRAY) != 0; |
316 | |
317 | // deactivate all the texturing units |
318 | GLint iActiveTex; |
319 | bool bTexture2D[8]; |
320 | glGetIntegerv(GL_ACTIVE_TEXTURE_ARB, &iActiveTex); |
321 | for (i = 0; i < 8; i++) |
322 | { |
323 | pglActiveTexture(GL_TEXTURE0_ARB + i); |
324 | bTexture2D[i] = glIsEnabled(GL_TEXTURE_2D) != 0; |
325 | glDisable(GL_TEXTURE_2D); |
326 | } |
327 | |
328 | // save the matrices and set up new ones |
329 | glMatrixMode(GL_PROJECTION); |
330 | glPushMatrix(); |
331 | glLoadIdentity(); |
332 | glOrtho(viewport[0],viewport[2],viewport[1],viewport[3], -1, 1); |
333 | |
334 | glMatrixMode(GL_MODELVIEW); |
335 | glPushMatrix(); |
336 | glLoadIdentity(); |
337 | |
338 | // setup for drawing text |
339 | glDisable(GL_FOG); |
340 | glDisable(GL_LIGHTING); |
341 | glDisable(GL_ALPHA_TEST); |
342 | glDisable(GL_DEPTH_TEST); |
343 | glDisable(GL_CULL_FACE); |
344 | glDisable(GL_SCISSOR_TEST); |
345 | glDisable(GL_STENCIL_TEST); |
346 | glDisable(GL_FRAGMENT_PROGRAM_ARB); |
347 | glDisable(GL_COLOR_MATERIAL); |
348 | |
349 | glEnable(GL_BLEND); |
350 | glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); |
351 | |
352 | glDisableClientState(GL_COLOR_ARRAY); |
353 | glDisableClientState(GL_TEXTURE_COORD_ARRAY); |
354 | glDisableClientState(GL_SECONDARY_COLOR_ARRAY); |
355 | glShadeModel(GL_FLAT); |
356 | |
357 | // get line height if invalid |
358 | if (l_fLineHeight < 0.0) |
359 | { |
360 | float bbox[4]; |
361 | OGLFT_Face_measure(l_font, "01abjZpqRGB" , bbox); |
362 | l_fLineHeight = (bbox[3] - bbox[1]) / 30.f; // y_max - y_min |
363 | } |
364 | |
365 | // keeps track of next message position for each corner |
366 | float fCornerPos[OSD_NUM_CORNERS]; |
367 | for (i = 0; i < OSD_NUM_CORNERS; i++) |
368 | fCornerPos[i] = 0.5f * l_fLineHeight; |
369 | |
370 | SDL_LockMutex(osd_list_lock); |
371 | list_for_each_entry_safe_t(msg, safe, &l_messageQueue, osd_message_t, list) { |
372 | // update message state |
373 | if(msg->timeout[msg->state] != OSD_INFINITE_TIMEOUT && |
374 | ++msg->frames >= msg->timeout[msg->state]) |
375 | { |
376 | // if message is in last state, mark it for deletion and continue to the next message |
377 | if(msg->state >= OSD_NUM_STATES - 1) |
378 | { |
379 | if (msg->user_managed) { |
380 | osd_remove_message(msg); |
381 | } else { |
382 | osd_remove_message(msg); |
383 | free(msg); |
384 | } |
385 | |
386 | continue; |
387 | } |
388 | |
389 | // go to next state and reset frame count |
390 | msg->state++; |
391 | msg->frames = 0; |
392 | } |
393 | |
394 | // offset y depending on how many other messages are in the same corner |
395 | float fStartOffset; |
396 | if (msg->corner >= OSD_MIDDLE_LEFT && msg->corner <= OSD_MIDDLE_RIGHT) // don't scroll the middle messages |
397 | fStartOffset = fCornerPos[msg->corner]; |
398 | else |
399 | fStartOffset = fCornerPos[msg->corner] + (fCornerScroll[msg->corner] * l_fLineHeight); |
400 | msg->yoffset += get_message_offset(msg, fStartOffset); |
401 | |
402 | draw_message(msg, viewport[2], viewport[3]); |
403 | |
404 | msg->yoffset -= get_message_offset(msg, fStartOffset); |
405 | fCornerPos[msg->corner] += l_fLineHeight; |
406 | } |
407 | SDL_UnlockMutex(osd_list_lock); |
408 | |
409 | // do the scrolling |
410 | for (i = 0; i < OSD_NUM_CORNERS; i++) |
411 | { |
412 | fCornerScroll[i] += 0.1f; |
413 | if (fCornerScroll[i] >= 0.0) |
414 | fCornerScroll[i] = 0.0; |
415 | } |
416 | |
417 | // restore the matrices |
418 | glMatrixMode(GL_MODELVIEW); |
419 | glPopMatrix(); |
420 | glMatrixMode(GL_PROJECTION); |
421 | glPopMatrix(); |
422 | |
423 | // restore the attributes |
424 | for (i = 0; i < 8; i++) |
425 | { |
426 | pglActiveTexture(GL_TEXTURE0_ARB + i); |
427 | if (bTexture2D[i]) |
428 | glEnable(GL_TEXTURE_2D); |
429 | else |
430 | glDisable(GL_TEXTURE_2D); |
431 | } |
432 | pglActiveTexture(iActiveTex); |
433 | glPopAttrib(); |
434 | if (bFragmentProg) |
435 | glEnable(GL_FRAGMENT_PROGRAM_ARB); |
436 | if (bColorArray) |
437 | glEnableClientState(GL_COLOR_ARRAY); |
438 | if (bTexCoordArray) |
439 | glEnableClientState(GL_TEXTURE_COORD_ARRAY); |
440 | if (bSecColorArray) |
441 | glEnableClientState(GL_SECONDARY_COLOR_ARRAY); |
442 | |
443 | glFinish(); |
444 | } |
445 | |
446 | // creates a new osd_message_t, adds it to the message queue and returns it in case |
447 | // the user wants to modify its parameters. Note, if the message can't be created, |
448 | // NULL is returned. |
449 | osd_message_t * osd_new_message(enum osd_corner eCorner, const char *fmt, ...) |
450 | { |
451 | va_list ap; |
452 | char buf[1024]; |
453 | |
454 | if (!l_OsdInitialized) return NULL; |
455 | |
456 | osd_message_t *msg = (osd_message_t *)malloc(sizeof(*msg)); |
457 | |
458 | if (!msg) return NULL; |
459 | |
460 | va_start(ap, fmt); |
461 | vsnprintf(buf, 1024, fmt, ap); |
462 | buf[1023] = 0; |
463 | va_end(ap); |
464 | |
465 | // set default values |
466 | memset(msg, 0, sizeof(osd_message_t)); |
467 | msg->text = strdup(buf); |
468 | msg->user_managed = 0; |
469 | // default to white |
470 | msg->color[R] = 1.; |
471 | msg->color[G] = 1.; |
472 | msg->color[B] = 1.; |
473 | |
474 | msg->sizebox[0] = 0.0; // set a null bounding box |
475 | msg->sizebox[1] = 0.0; |
476 | msg->sizebox[2] = 0.0; |
477 | msg->sizebox[3] = 0.0; |
478 | |
479 | msg->corner = eCorner; |
480 | msg->state = OSD_APPEAR; |
481 | fCornerScroll[eCorner] -= 1.0; // start this one before the beginning of the list and scroll it in |
482 | |
483 | msg->animation[OSD_APPEAR] = OSD_FADE; |
484 | msg->animation[OSD_DISPLAY] = OSD_NONE; |
485 | msg->animation[OSD_DISAPPEAR] = OSD_FADE; |
486 | |
487 | if (eCorner >= OSD_MIDDLE_LEFT && eCorner <= OSD_MIDDLE_RIGHT) |
488 | { |
489 | msg->timeout[OSD_APPEAR] = 20; |
490 | msg->timeout[OSD_DISPLAY] = 60; |
491 | msg->timeout[OSD_DISAPPEAR] = 20; |
492 | } |
493 | else |
494 | { |
495 | msg->timeout[OSD_APPEAR] = 20; |
496 | msg->timeout[OSD_DISPLAY] = 180; |
497 | msg->timeout[OSD_DISAPPEAR] = 40; |
498 | } |
499 | |
500 | // add to message queue |
501 | SDL_LockMutex(osd_list_lock); |
502 | list_add(&msg->list, &l_messageQueue); |
503 | SDL_UnlockMutex(osd_list_lock); |
504 | |
505 | return msg; |
506 | } |
507 | |
508 | // update message string |
509 | void osd_update_message(osd_message_t *msg, const char *fmt, ...) |
510 | { |
511 | va_list ap; |
512 | char buf[1024]; |
513 | |
514 | if (!l_OsdInitialized || !msg) return; |
515 | |
516 | va_start(ap, fmt); |
517 | vsnprintf(buf, 1024, fmt, ap); |
518 | buf[1023] = 0; |
519 | va_end(ap); |
520 | |
521 | free(msg->text); |
522 | msg->text = strdup(buf); |
523 | |
524 | // reset bounding box |
525 | msg->sizebox[0] = 0.0; |
526 | msg->sizebox[1] = 0.0; |
527 | msg->sizebox[2] = 0.0; |
528 | msg->sizebox[3] = 0.0; |
529 | |
530 | // reset display time counter |
531 | if (msg->state >= OSD_DISPLAY) |
532 | { |
533 | msg->state = OSD_DISPLAY; |
534 | msg->frames = 0; |
535 | } |
536 | |
537 | SDL_LockMutex(osd_list_lock); |
538 | if (!osd_message_valid(msg)) |
539 | list_add(&msg->list, &l_messageQueue); |
540 | SDL_UnlockMutex(osd_list_lock); |
541 | |
542 | } |
543 | |
544 | // remove message from message queue |
545 | static void osd_remove_message(osd_message_t *msg) |
546 | { |
547 | if (!l_OsdInitialized || !msg) return; |
548 | |
549 | free(msg->text); |
550 | msg->text = NULL; |
551 | list_del(&msg->list); |
552 | } |
553 | |
554 | // remove message from message queue and free it |
555 | void osd_delete_message(osd_message_t *msg) |
556 | { |
557 | if (!l_OsdInitialized || !msg) return; |
558 | |
559 | SDL_LockMutex(osd_list_lock); |
560 | osd_remove_message(msg); |
561 | free(msg); |
562 | SDL_UnlockMutex(osd_list_lock); |
563 | } |
564 | |
565 | // set message so it doesn't automatically expire in a certain number of frames. |
566 | void osd_message_set_static(osd_message_t *msg) |
567 | { |
568 | if (!l_OsdInitialized || !msg) return; |
569 | |
570 | msg->timeout[OSD_DISPLAY] = OSD_INFINITE_TIMEOUT; |
571 | msg->state = OSD_DISPLAY; |
572 | msg->frames = 0; |
573 | } |
574 | |
575 | // set message so it doesn't automatically get freed when finished transition. |
576 | void osd_message_set_user_managed(osd_message_t *msg) |
577 | { |
578 | if (!l_OsdInitialized || !msg) return; |
579 | |
580 | msg->user_managed = 1; |
581 | } |
582 | |
583 | // return message pointer if valid (in the OSD list), otherwise return NULL |
584 | static osd_message_t * osd_message_valid(osd_message_t *testmsg) |
585 | { |
586 | osd_message_t *msg; |
587 | |
588 | if (!l_OsdInitialized || !testmsg) return NULL; |
589 | |
590 | list_for_each_entry_t(msg, &l_messageQueue, osd_message_t, list) { |
591 | if (msg == testmsg) |
592 | return testmsg; |
593 | } |
594 | |
595 | return NULL; |
596 | } |
597 | |
598 | |