3 * @brief OpenGL video output module
5 /*****************************************************************************
6 * Copyright © 2010-2011 Rémi Denis-Courmont
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public License
10 * as published by the Free Software Foundation; either version 2.1
11 * of the License, or (at your option) any later version.
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 * GNU General Public License for more details.
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
21 ****************************************************************************/
30 #include <vlc_common.h>
31 #include <vlc_plugin.h>
32 #include <vlc_vout_display.h>
33 #include <vlc_opengl.h>
36 /* Plugin callbacks */
37 static int Open (vlc_object_t *);
38 static void Close (vlc_object_t *);
40 #define GL_TEXT N_("OpenGL extension")
41 #define GLES2_TEXT N_("OpenGL ES 2 extension")
42 #define GLES_TEXT N_("OpenGL ES extension")
43 #define PROVIDER_LONGTEXT N_( \
44 "Extension through which to use the Open Graphics Library (OpenGL).")
47 #if USE_OPENGL_ES == 2
48 # define API VLC_OPENGL_ES2
49 # define MODULE_VARNAME "gles2"
50 set_shortname (N_("OpenGL ES2"))
51 set_description (N_("OpenGL for Embedded Systems 2 video output"))
52 set_capability ("vout display", /*165*/0)
53 set_callbacks (Open, Close)
54 add_shortcut ("opengles2", "gles2")
55 add_module ("gles2", "opengl es2", NULL,
56 GLES2_TEXT, PROVIDER_LONGTEXT, true)
58 #elif USE_OPENGL_ES == 1
59 # define API VLC_OPENGL_ES
60 # define MODULE_VARNAME "gles"
61 set_shortname (N_("OpenGL ES"))
62 set_description (N_("OpenGL for Embedded Systems video output"))
63 set_capability ("vout display", /*160*/0)
64 set_callbacks (Open, Close)
65 add_shortcut ("opengles", "gles")
66 add_module ("gles", "opengl es", NULL,
67 GLES_TEXT, PROVIDER_LONGTEXT, true)
69 # define API VLC_OPENGL
70 # define MODULE_VARNAME "gl"
71 set_shortname (N_("OpenGL"))
72 set_description (N_("Open Graphics Library video output"))
73 set_category (CAT_VIDEO)
74 set_subcategory (SUBCAT_VIDEO_VOUT)
75 set_capability ("vout display", /*170*/0)
76 set_callbacks (Open, Close)
77 add_shortcut ("opengl", "gl")
78 add_module ("gl", "opengl", NULL,
79 GL_TEXT, PROVIDER_LONGTEXT, true)
83 struct vout_display_sys_t
85 vout_display_opengl_t *vgl;
87 vout_window_t *window;
92 /* Display callbacks */
93 static picture_pool_t *Pool (vout_display_t *, unsigned);
94 static void PictureRender (vout_display_t *, picture_t *, subpicture_t *);
95 static void PictureDisplay (vout_display_t *, picture_t *, subpicture_t *);
96 static int Control (vout_display_t *, int, va_list);
98 static vout_window_t *MakeWindow (vout_display_t *vd)
100 vout_window_cfg_t wnd_cfg;
102 memset (&wnd_cfg, 0, sizeof (wnd_cfg));
103 wnd_cfg.type = VOUT_WINDOW_TYPE_NATIVE;
104 wnd_cfg.x = var_InheritInteger (vd, "video-x");
105 wnd_cfg.y = var_InheritInteger (vd, "video-y");
106 wnd_cfg.width = vd->cfg->display.width;
107 wnd_cfg.height = vd->cfg->display.height;
109 vout_window_t *wnd = vout_display_NewWindow (vd, &wnd_cfg);
111 msg_Err (vd, "parent window not available");
116 * Allocates a surface and an OpenGL context for video output.
118 static int Open (vlc_object_t *obj)
120 vout_display_t *vd = (vout_display_t *)obj;
121 vout_display_sys_t *sys = malloc (sizeof (*sys));
122 if (unlikely(sys == NULL))
128 sys->window = MakeWindow (vd);
129 if (sys->window == NULL)
132 sys->gl = vlc_gl_Create (sys->window, API, "$" MODULE_VARNAME);
136 if (vlc_gl_MakeCurrent (sys->gl))
139 /* Initialize video display */
140 sys->vgl = vout_display_opengl_New (&vd->fmt, NULL, sys->gl);
145 vd->info.has_pictures_invalid = false;
146 vd->info.has_event_thread = false;
148 vd->prepare = PictureRender;
149 vd->display = PictureDisplay;
150 vd->control = Control;
156 vlc_gl_Destroy (sys->gl);
157 if (sys->window != NULL)
158 vout_display_DeleteWindow (vd, sys->window);
164 * Destroys the OpenGL context.
166 static void Close (vlc_object_t *obj)
168 vout_display_t *vd = (vout_display_t *)obj;
169 vout_display_sys_t *sys = vd->sys;
171 vout_display_opengl_Delete (sys->vgl);
172 vlc_gl_Destroy (sys->gl);
173 vout_display_DeleteWindow (vd, sys->window);
178 * Returns picture buffers
180 static picture_pool_t *Pool (vout_display_t *vd, unsigned count)
182 vout_display_sys_t *sys = vd->sys;
185 sys->pool = vout_display_opengl_GetPool (sys->vgl, count);
189 static void PictureRender (vout_display_t *vd, picture_t *pic, subpicture_t *subpicture)
191 vout_display_sys_t *sys = vd->sys;
193 vout_display_opengl_Prepare (sys->vgl, pic, subpicture);
196 static void PictureDisplay (vout_display_t *vd, picture_t *pic, subpicture_t *subpicture)
198 vout_display_sys_t *sys = vd->sys;
200 vout_display_opengl_Display (sys->vgl, &vd->source);
201 picture_Release (pic);
205 static int Control (vout_display_t *vd, int query, va_list ap)
207 vout_display_sys_t *sys = vd->sys;
211 case VOUT_DISPLAY_HIDE_MOUSE: /* FIXME TODO */
214 case VOUT_DISPLAY_RESET_PICTURES: // not needed
217 case VOUT_DISPLAY_CHANGE_FULLSCREEN:
219 const vout_display_cfg_t *cfg =
220 va_arg (ap, const vout_display_cfg_t *);
222 return vout_window_SetFullScreen (sys->window, cfg->is_fullscreen);
225 case VOUT_DISPLAY_CHANGE_WINDOW_STATE:
227 unsigned state = va_arg (ap, unsigned);
229 return vout_window_SetState (sys->window, state);
232 case VOUT_DISPLAY_CHANGE_DISPLAY_SIZE:
233 case VOUT_DISPLAY_CHANGE_DISPLAY_FILLED:
234 case VOUT_DISPLAY_CHANGE_ZOOM:
236 const vout_display_cfg_t *cfg = va_arg (ap, const vout_display_cfg_t *);
237 const video_format_t *src = &vd->source;
239 if (query == VOUT_DISPLAY_CHANGE_DISPLAY_SIZE)
243 force = va_arg (ap, int);
245 && (cfg->display.width != vd->cfg->display.width
246 || cfg->display.height != vd->cfg->display.height)
247 && vout_window_SetSize (sys->window,
248 cfg->display.width, cfg->display.height))
252 vout_display_place_t place;
254 vout_display_PlacePicture (&place, src, cfg, false);
255 glViewport (0, 0, place.width, place.height);
259 case VOUT_DISPLAY_CHANGE_SOURCE_ASPECT:
260 case VOUT_DISPLAY_CHANGE_SOURCE_CROP:
262 const vout_display_cfg_t *cfg = vd->cfg;
263 const video_format_t *src = va_arg (ap, const video_format_t *);
264 vout_display_place_t place;
266 vout_display_PlacePicture (&place, src, cfg, false);
267 glViewport (0, 0, place.width, place.height);
271 case VOUT_DISPLAY_GET_OPENGL:
273 vlc_gl_t **pgl = va_arg (ap, vlc_gl_t **);
280 msg_Err (vd, "Unknown request %d", query);