1 /*****************************************************************************
2 * vout_display.c: "vout display" -> "video output" wrapper
3 *****************************************************************************
4 * Copyright (C) 2009 Laurent Aimar
7 * Authors: Laurent Aimar <fenrir _AT_ videolan _DOT_ org>
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
22 *****************************************************************************/
24 /*****************************************************************************
26 *****************************************************************************/
31 #include <vlc_common.h>
32 #include <vlc_plugin.h>
33 #include <vlc_vout_display.h>
34 #include <vlc_vout_wrapper.h>
37 #include "vout_internal.h"
39 /*****************************************************************************
41 *****************************************************************************/
48 struct picture_sys_t {
52 /*****************************************************************************
54 *****************************************************************************/
55 static int Init (vout_thread_t *);
56 static void End (vout_thread_t *);
57 static int Manage (vout_thread_t *);
58 static void Render (vout_thread_t *, picture_t *);
59 static void Display(vout_thread_t *, picture_t *);
61 static void VoutGetDisplayCfg(vout_thread_t *,
62 vout_display_cfg_t *, const char *title);
64 static int Forward(vlc_object_t *, char const *,
65 vlc_value_t, vlc_value_t, void *);
68 /*****************************************************************************
70 *****************************************************************************/
71 int vout_OpenWrapper(vout_thread_t *vout, const char *name)
75 msg_Dbg(vout, "Opening vout display wrapper");
78 sys = malloc(sizeof(*sys));
82 sys->title = var_CreateGetNonEmptyString(vout, "video-title");
85 video_format_t source = vout->fmt_render;
86 source.i_visible_width = source.i_width;
87 source.i_visible_height = source.i_height;
88 source.i_x_offset = 0;
89 source.i_y_offset = 0;
91 vout_display_state_t state;
92 VoutGetDisplayCfg(vout, &state.cfg, sys->title);
93 state.is_on_top = var_CreateGetBool(vout, "video-on-top");
97 const mtime_t double_click_timeout = 300000;
98 const mtime_t hide_timeout = var_CreateGetInteger(vout, "mouse-hide-timeout") * 1000;
100 sys->vd = vout_NewDisplay(vout, &source, &state, name ? name : "$vout",
101 double_click_timeout, hide_timeout);
110 var_Create(vout, "direct3d-desktop", VLC_VAR_BOOL|VLC_VAR_DOINHERIT);
111 var_AddCallback(vout, "direct3d-desktop", Forward, NULL);
112 var_Create(vout, "video-wallpaper", VLC_VAR_BOOL|VLC_VAR_DOINHERIT);
113 var_AddCallback(vout, "video-wallpaper", Forward, NULL);
117 vout->pf_init = Init;
119 vout->pf_manage = Manage;
120 vout->pf_render = Render;
121 vout->pf_display = Display;
122 vout->pf_control = NULL;
128 /*****************************************************************************
130 *****************************************************************************/
131 void vout_CloseWrapper(vout_thread_t *vout)
133 vout_sys_t *sys = vout->p_sys;
136 var_DelCallback(vout, "direct3d-desktop", Forward, NULL);
137 var_DelCallback(vout, "video-wallpaper", Forward, NULL);
139 vout_DeleteDisplay(sys->vd, NULL);
144 /*****************************************************************************
146 *****************************************************************************/
147 static int Init(vout_thread_t *vout)
149 vout_sys_t *sys = vout->p_sys;
150 vout_display_t *vd = sys->vd;
153 video_format_t source = vd->source;
155 vout->output.i_chroma = source.i_chroma;
156 vout->output.i_width = source.i_width;
157 vout->output.i_height = source.i_height;
158 vout->output.i_aspect = (int64_t)source.i_sar_num * source.i_width * VOUT_ASPECT_FACTOR / source.i_sar_den / source.i_height;
159 vout->output.i_rmask = source.i_rmask;
160 vout->output.i_gmask = source.i_gmask;
161 vout->output.i_bmask = source.i_bmask;
162 vout->output.pf_setpalette = NULL; /* FIXME What to do ? Seems unused anyway */
164 /* also set fmt_out (completly broken API) */
165 vout->fmt_out.i_chroma = vout->output.i_chroma;
166 vout->fmt_out.i_width =
167 vout->fmt_out.i_visible_width = vout->output.i_width;
168 vout->fmt_out.i_height =
169 vout->fmt_out.i_visible_height = vout->output.i_height;
170 vout->fmt_out.i_sar_num = vout->output.i_aspect * vout->output.i_height;
171 vout->fmt_out.i_sar_den = VOUT_ASPECT_FACTOR * vout->output.i_width;
172 vout->fmt_out.i_x_offset = 0;
173 vout->fmt_out.i_y_offset = 0;
175 if (vout->fmt_in.i_visible_width != source.i_visible_width ||
176 vout->fmt_in.i_visible_height != source.i_visible_height ||
177 vout->fmt_in.i_x_offset != source.i_x_offset ||
178 vout->fmt_in.i_y_offset != source.i_y_offset )
179 vout->i_changes |= VOUT_CROP_CHANGE;
182 vout_SetWindowState(vd, VOUT_WINDOW_STATE_ABOVE);
184 /* XXX For non dr case, the current vout implementation force us to
185 * create at most 1 direct picture (otherwise the buffers will be kept
186 * referenced even through the Init/End.
188 sys->use_dr = !vout_IsDisplayFiltered(vd);
189 const bool allow_dr = !vd->info.has_pictures_invalid && sys->use_dr;
190 const int picture_max = allow_dr ? VOUT_MAX_PICTURES : 1;
191 for (vout->output.i_pictures = 0;
192 vout->output.i_pictures < picture_max;
193 vout->output.i_pictures++) {
194 /* Find an empty picture slot */
195 picture_t *picture = NULL;
196 for (int index = 0; index < VOUT_MAX_PICTURES; index++) {
197 if (vout->p_picture[index].i_status == FREE_PICTURE) {
198 picture = &vout->p_picture[index];
204 memset(picture, 0, sizeof(*picture));
206 picture->p_sys = malloc(sizeof(*picture->p_sys));
209 picture_pool_t *pool = vout_display_Pool(vd, picture_max);
212 picture_t *direct = picture_pool_Get(pool);
215 picture->format = direct->format;
216 picture->i_planes = direct->i_planes;
217 for (int i = 0; i < direct->i_planes; i++)
218 picture->p[i] = direct->p[i];
219 picture->b_slow = vd->info.is_slow;
221 picture->p_sys->direct = direct;
223 vout_AllocatePicture(VLC_OBJECT(vd), picture,
225 vd->source.i_width, vd->source.i_height,
226 vd->source.i_sar_num, vd->source.i_sar_den);
227 if (!picture->i_planes)
229 picture->p_sys->direct = NULL;
231 picture->i_status = DESTROYED_PICTURE;
232 picture->i_type = DIRECT_PICTURE;
234 vout->output.pp_picture[vout->output.i_pictures] = picture;
239 /*****************************************************************************
241 *****************************************************************************/
242 static void End(vout_thread_t *vout)
244 vout_sys_t *sys = vout->p_sys;
246 for (int i = 0; i < VOUT_MAX_PICTURES; i++) {
247 picture_t *picture = &vout->p_picture[i];
249 if (picture->i_type != DIRECT_PICTURE)
252 if (picture->p_sys->direct)
253 picture_Release(picture->p_sys->direct);
255 free(picture->p_data_orig);
256 free(picture->p_sys);
258 picture->i_status = FREE_PICTURE;
260 if (sys->use_dr && vout_AreDisplayPicturesInvalid(sys->vd))
261 vout_ManageDisplay(sys->vd, true);
264 /*****************************************************************************
266 *****************************************************************************/
267 static int Manage(vout_thread_t *vout)
269 vout_sys_t *sys = vout->p_sys;
270 vout_display_t *vd = sys->vd;
272 while (vout->i_changes & (VOUT_FULLSCREEN_CHANGE |
279 if (vout->i_changes & VOUT_FULLSCREEN_CHANGE) {
280 vout->b_fullscreen = !vout->b_fullscreen;
282 var_SetBool(vout, "fullscreen", vout->b_fullscreen);
283 vout_SetDisplayFullscreen(vd, vout->b_fullscreen);
284 vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
286 if (vout->i_changes & VOUT_ASPECT_CHANGE) {
287 vout->output.i_aspect = (int64_t)vout->fmt_in.i_sar_num * vout->fmt_in.i_width * VOUT_ASPECT_FACTOR /
288 vout->fmt_in.i_sar_den / vout->fmt_in.i_height;
289 vout->fmt_out.i_sar_num = vout->fmt_in.i_sar_num;
290 vout->fmt_out.i_sar_den = vout->fmt_in.i_sar_den;
292 vout_SetDisplayAspect(vd, vout->fmt_in.i_sar_num, vout->fmt_in.i_sar_den);
294 vout->i_changes &= ~VOUT_ASPECT_CHANGE;
296 if (vout->i_changes & VOUT_ZOOM_CHANGE) {
297 const float zoom = var_GetFloat(vout, "scale");
299 unsigned den = ZOOM_FP_FACTOR;
300 unsigned num = den * zoom;
301 if (num < (ZOOM_FP_FACTOR+9) / 10)
302 num = (ZOOM_FP_FACTOR+9) / 10;
303 else if (num > ZOOM_FP_FACTOR * 10)
304 num = ZOOM_FP_FACTOR * 10;
306 vout_SetDisplayZoom(vd, num, den);
308 vout->i_changes &= ~VOUT_ZOOM_CHANGE;
310 if (vout->i_changes & VOUT_SCALE_CHANGE) {
311 const bool is_display_filled = var_GetBool(vout, "autoscale");
313 vout_SetDisplayFilled(vd, is_display_filled);
315 vout->i_changes &= ~VOUT_SCALE_CHANGE;
317 if (vout->i_changes & VOUT_ON_TOP_CHANGE) {
318 vout_SetWindowState(vd, vout->b_on_top
319 ? VOUT_WINDOW_STATE_ABOVE
320 : VOUT_WINDOW_STATE_NORMAL);
322 vout->i_changes &= ~VOUT_ON_TOP_CHANGE;
324 if (vout->i_changes & VOUT_CROP_CHANGE) {
325 const video_format_t crop = vout->fmt_in;
326 const video_format_t org = vout->fmt_render;
327 /* FIXME because of rounding errors, the reconstructed ratio is wrong */
330 if (crop.i_x_offset == org.i_x_offset &&
331 crop.i_visible_width == org.i_visible_width &&
332 crop.i_y_offset == org.i_y_offset + (org.i_visible_height - crop.i_visible_height)/2) {
333 vlc_ureduce(&num, &den,
334 crop.i_visible_width * crop.i_sar_num,
335 crop.i_visible_height * crop.i_sar_den, 0);
336 } else if (crop.i_y_offset == org.i_y_offset &&
337 crop.i_visible_height == org.i_visible_height &&
338 crop.i_x_offset == org.i_x_offset + (org.i_visible_width - crop.i_visible_width)/2) {
339 vlc_ureduce(&num, &den,
340 crop.i_visible_width * crop.i_sar_num,
341 crop.i_visible_height * crop.i_sar_den, 0);
343 vout_SetDisplayCrop(vd, num, den,
344 crop.i_x_offset, crop.i_y_offset,
345 crop.i_visible_width, crop.i_visible_height);
346 vout->i_changes &= ~VOUT_CROP_CHANGE;
351 if (sys->use_dr && vout_AreDisplayPicturesInvalid(vd)) {
352 vout->i_changes |= VOUT_PICTURE_BUFFERS_CHANGE;
354 vout_ManageDisplay(vd, !sys->use_dr);
358 /*****************************************************************************
360 *****************************************************************************/
361 static void Render(vout_thread_t *vout, picture_t *picture)
363 vout_sys_t *sys = vout->p_sys;
364 vout_display_t *vd = sys->vd;
366 assert(sys->use_dr || !picture->p_sys->direct);
367 assert(vout_IsDisplayFiltered(vd) == !sys->use_dr);
370 assert(picture->p_sys->direct);
371 vout_display_Prepare(vd, picture->p_sys->direct);
373 picture_t *direct = picture->p_sys->direct = vout_FilterDisplay(vd, picture);
375 vout_display_Prepare(vd, direct);
380 /*****************************************************************************
382 *****************************************************************************/
383 static void Display(vout_thread_t *vout, picture_t *picture)
385 vout_sys_t *sys = vout->p_sys;
386 vout_display_t *vd = sys->vd;
388 picture_t *direct = picture->p_sys->direct;
392 /* XXX This is a hack that will work with current vout_display_t modules */
394 picture_Hold(direct);
396 vout_display_Display(vd, direct);
399 for (int i = 0; i < picture->i_planes; i++) {
400 picture->p[i].p_pixels = direct->p[i].p_pixels;
401 picture->p[i].i_pitch = direct->p[i].i_pitch;
402 picture->p[i].i_lines = direct->p[i].i_lines;
405 picture->p_sys->direct = NULL;
409 static void VoutGetDisplayCfg(vout_thread_t *vout, vout_display_cfg_t *cfg, const char *title)
411 /* Load configuration */
412 cfg->is_fullscreen = var_CreateGetBool(vout, "fullscreen");
413 cfg->display.title = title;
414 const int display_width = var_CreateGetInteger(vout, "width");
415 const int display_height = var_CreateGetInteger(vout, "height");
416 cfg->display.width = display_width > 0 ? display_width : 0;
417 cfg->display.height = display_height > 0 ? display_height : 0;
418 cfg->is_display_filled = var_CreateGetBool(vout, "autoscale");
419 cfg->display.sar.num = 1; /* TODO monitor AR */
420 cfg->display.sar.den = 1;
421 unsigned zoom_den = 1000;
422 unsigned zoom_num = zoom_den * var_CreateGetFloat(vout, "scale");
423 vlc_ureduce(&zoom_num, &zoom_den, zoom_num, zoom_den, 0);
424 cfg->zoom.num = zoom_num;
425 cfg->zoom.den = zoom_den;
426 cfg->align.vertical = VOUT_DISPLAY_ALIGN_CENTER;
427 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_CENTER;
428 const int align_mask = var_CreateGetInteger(vout, "align");
429 if (align_mask & 0x1)
430 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_LEFT;
431 else if (align_mask & 0x2)
432 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_RIGHT;
433 if (align_mask & 0x4)
434 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_TOP;
435 else if (align_mask & 0x8)
436 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_BOTTOM;
440 static int Forward(vlc_object_t *object, char const *var,
441 vlc_value_t oldval, vlc_value_t newval, void *data)
443 vout_thread_t *vout = (vout_thread_t*)object;
447 return var_Set(vout->p_sys->vd, var, newval);