--- /dev/null
+/*****************************************************************************
+ * vout_display.c: "vout display" -> "video output" wrapper
+ *****************************************************************************
+ * Copyright (C) 2009 Laurent Aimar
+ * $Id$
+ *
+ * Authors: Laurent Aimar <fenrir _AT_ videolan _DOT_ org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
+ *****************************************************************************/
+
+/*****************************************************************************
+ * Preamble
+ *****************************************************************************/
+#ifdef HAVE_CONFIG_H
+# include "config.h"
+#endif
+
+#include <vlc_common.h>
+#include <vlc_plugin.h>
+#include <vlc_vout_display.h>
+#include <vlc_vout_wrapper.h>
+#include <vlc_vout.h>
+#include "../video_filter/filter_common.h"
+#include <assert.h>
+
+/*****************************************************************************
+ * Module descriptor
+ *****************************************************************************/
+static int Open (vlc_object_t *, const char *module);
+static void Close(vlc_object_t *);
+
+#define DECLARE_OPEN(name) \
+ static int Open##name(vlc_object_t *object) { return Open(object, #name); }
+
+DECLARE_OPEN(none);
+
+#undef DECLARE_OPEN
+
+#define DECLARE_MODULE(name, priority) \
+ set_description( "Video display "#name" wrapper" ) \
+ set_shortname( "Video display "#name" wrapper" ) \
+ set_capability( "video output", priority ) \
+ set_callbacks( Open##name, Close ) \
+ add_shortcut( #name )
+
+vlc_module_begin()
+ set_category( CAT_VIDEO )
+ set_subcategory( SUBCAT_VIDEO_VOUT )
+
+ DECLARE_MODULE(none, 0)
+
+vlc_module_end()
+
+#undef DECLARE_MODULE
+
+/*****************************************************************************
+ *
+ *****************************************************************************/
+struct vout_sys_t {
+ char *title;
+ vout_display_t *vd;
+ bool use_dr;
+};
+
+struct picture_sys_t {
+ picture_t *direct;
+};
+
+/*****************************************************************************
+ * Local prototypes
+ *****************************************************************************/
+static int Init (vout_thread_t *);
+static void End (vout_thread_t *);
+static int Manage (vout_thread_t *);
+static void Render (vout_thread_t *, picture_t *);
+static void Display(vout_thread_t *, picture_t *);
+
+static void VoutGetDisplayCfg(vout_thread_t *,
+ vout_display_cfg_t *, const char *title);
+
+/*****************************************************************************
+ *
+ *****************************************************************************/
+static int Open(vlc_object_t *object, const char *module)
+{
+ vout_thread_t *vout = (vout_thread_t *)object;
+ vout_sys_t *sys;
+
+ msg_Err(vout, "Opening vout display wrapper");
+
+ /* */
+ sys = malloc(sizeof(*sys));
+ if (!sys)
+ return VLC_ENOMEM;
+
+ sys->title = var_CreateGetNonEmptyString(vout, "video-title");
+
+ /* */
+ video_format_t source = vout->fmt_render;
+ source.i_visible_width = source.i_width;
+ source.i_visible_height = source.i_height;
+ source.i_x_offset = 0;
+ source.i_y_offset = 0;
+
+ vout_display_state_t state;
+ VoutGetDisplayCfg(vout, &state.cfg, sys->title);
+ state.is_on_top = var_CreateGetBool(vout, "video-on-top");
+ state.sar.num = 0;
+ state.sar.den = 0;
+
+ const mtime_t double_click_timeout = 300000;
+ const mtime_t hide_timeout = var_CreateGetInteger(vout, "mouse-hide-timeout") * 1000;
+
+ sys->vd = vout_NewDisplay(vout, &source, &state, module,
+ double_click_timeout, hide_timeout);
+ if (!sys->vd) {
+ free(sys->title);
+ free(sys);
+ return VLC_EGENERIC;
+ }
+
+ /* */
+ vout->pf_init = Init;
+ vout->pf_end = End;
+ vout->pf_manage = Manage;
+ vout->pf_render = Render;
+ vout->pf_display = Display;
+ vout->pf_control = NULL;
+ vout->p_sys = sys;
+
+ return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ *
+ *****************************************************************************/
+static void Close(vlc_object_t *object)
+{
+ vout_thread_t *vout = (vout_thread_t *)object;
+ vout_sys_t *sys = vout->p_sys;
+
+ if (sys->vd)
+ vout_DeleteDisplay(sys->vd, NULL);
+ free(sys->title);
+ free(sys );
+}
+
+/*****************************************************************************
+ *
+ *****************************************************************************/
+static int Init(vout_thread_t *vout)
+{
+ vout_sys_t *sys = vout->p_sys;
+ vout_display_t *vd = sys->vd;
+
+ /* */
+ video_format_t source = vd->source;
+
+ vout->output.i_chroma = source.i_chroma;
+ vout->output.i_width = source.i_width;
+ vout->output.i_height = source.i_height;
+ vout->output.i_aspect = source.i_aspect;
+ vout->output.i_rmask = source.i_rmask;
+ vout->output.i_gmask = source.i_gmask;
+ vout->output.i_bmask = source.i_bmask;
+ vout->output.pf_setpalette = NULL; /* FIXME What to do ? Seems unused anyway */
+
+ /* also set fmt_out (completly broken API) */
+ vout->fmt_out.i_chroma = vout->output.i_chroma;
+ vout->fmt_out.i_width =
+ vout->fmt_out.i_visible_width = vout->output.i_width;
+ vout->fmt_out.i_height =
+ vout->fmt_out.i_visible_height = vout->output.i_height;
+ vout->fmt_out.i_aspect = vout->output.i_aspect;
+ vout->fmt_out.i_x_offset = 0;
+ vout->fmt_out.i_y_offset = 0;
+
+ /* TODO */
+#if 0
+ if (p_vout->fmt_render.i_visible_width != source.i_visible_width ||
+ p_vout->fmt_render.i_visible_height != source.i_visible_height ||
+ p_vout->fmt_render.i_x_offset != source.i_x_offset ||
+ p_vout->fmt_render.i_y_offset != source.i_y_offset )
+ {
+ p_vout->i_changes |= VOUT_CROP_CHANGE;
+ }
+#endif
+ if (vout->b_on_top)
+ vout_SetDisplayOnTop(vd, true);
+
+ /* XXX For non dr case, the current vout implementation force us to
+ * create at most 1 direct picture (otherwise the buffers will be kept
+ * referenced even through the Init/End.
+ */
+ sys->use_dr = !vout_IsDisplayFiltered(vd);
+ const bool allow_dr = !vd->info.has_pictures_invalid && sys->use_dr;
+ const int picture_max = allow_dr ? VOUT_MAX_PICTURES : 1;
+ for (vout->output.i_pictures = 0;
+ vout->output.i_pictures < picture_max;
+ vout->output.i_pictures++) {
+ /* Find an empty picture slot */
+ picture_t *picture = NULL;
+ for (int index = 0; index < VOUT_MAX_PICTURES; index++) {
+ if (vout->p_picture[index].i_status == FREE_PICTURE) {
+ picture = &vout->p_picture[index];
+ break;
+ }
+ }
+ if (!picture)
+ break;
+ memset(picture, 0, sizeof(*picture));
+
+ picture->p_sys = malloc(sizeof(*picture->p_sys));
+
+ if (sys->use_dr) {
+ picture_t *direct = vout_display_Get(vd);
+ if (!direct)
+ break;
+ picture->format = direct->format;
+ picture->i_planes = direct->i_planes;
+ for (int i = 0; i < direct->i_planes; i++)
+ picture->p[i] = direct->p[i];
+ picture->b_slow = vd->info.is_slow;
+
+ picture->p_sys->direct = direct;
+ } else {
+ vout_AllocatePicture(VLC_OBJECT(vd), picture,
+ vd->source.i_chroma,
+ vd->source.i_width, vd->source.i_height,
+ vd->source.i_aspect);
+ if (!picture->i_planes)
+ break;
+ picture->p_sys->direct = NULL;
+ }
+ picture->i_status = DESTROYED_PICTURE;
+ picture->i_type = DIRECT_PICTURE;
+
+ vout->output.pp_picture[vout->output.i_pictures] = picture;
+ }
+ return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ *
+ *****************************************************************************/
+static void End(vout_thread_t *vout)
+{
+ vout_sys_t *sys = vout->p_sys;
+
+ for (int i = 0; i < VOUT_MAX_PICTURES; i++) {
+ picture_t *picture = &vout->p_picture[i];
+
+ if (picture->i_type != DIRECT_PICTURE)
+ continue;
+
+ if (picture->p_sys->direct)
+ picture_Release(picture->p_sys->direct);
+ if (!sys->use_dr)
+ free(picture->p_data_orig);
+ free(picture->p_sys);
+ }
+}
+
+/*****************************************************************************
+ *
+ *****************************************************************************/
+static int Manage(vout_thread_t *vout)
+{
+ vout_sys_t *sys = vout->p_sys;
+ vout_display_t *vd = sys->vd;
+
+ while (vout->i_changes & (VOUT_FULLSCREEN_CHANGE |
+ VOUT_ASPECT_CHANGE |
+ VOUT_ZOOM_CHANGE |
+ VOUT_SCALE_CHANGE |
+ VOUT_ON_TOP_CHANGE |
+ VOUT_CROP_CHANGE)) {
+ /* */
+ if (vout->i_changes & VOUT_FULLSCREEN_CHANGE) {
+ vout->b_fullscreen = !vout->b_fullscreen;
+
+ var_SetBool(vout, "fullscreen", vout->b_fullscreen);
+ vout_SetDisplayFullscreen(vd, vout->b_fullscreen);
+ vout->i_changes &= ~VOUT_FULLSCREEN_CHANGE;
+ }
+ if (vout->i_changes & VOUT_ASPECT_CHANGE) {
+ vout->output.i_aspect =
+ vout->fmt_out.i_aspect = vout->fmt_in.i_aspect;
+ vout->fmt_out.i_sar_num = vout->fmt_in.i_sar_num;
+ vout->fmt_out.i_sar_den = vout->fmt_in.i_sar_den;
+
+ vout_SetDisplayAspect(vd, vout->fmt_in.i_sar_num, vout->fmt_in.i_sar_den);
+
+ vout->i_changes &= ~VOUT_ASPECT_CHANGE;
+ }
+ if (vout->i_changes & VOUT_ZOOM_CHANGE) {
+ const float zoom = var_GetFloat(vout, "scale");
+
+ unsigned den = ZOOM_FP_FACTOR;
+ unsigned num = den * zoom;
+ if (num < (ZOOM_FP_FACTOR+9) / 10)
+ num = (ZOOM_FP_FACTOR+9) / 10;
+ else if (num > ZOOM_FP_FACTOR * 10)
+ num = ZOOM_FP_FACTOR * 10;
+
+ vout_SetDisplayZoom(vd, num, den);
+
+ vout->i_changes &= ~VOUT_ZOOM_CHANGE;
+ }
+ if (vout->i_changes & VOUT_SCALE_CHANGE) {
+ const bool is_display_filled = var_GetBool(vout, "autoscale");
+
+ vout_SetDisplayFilled(vd, is_display_filled);
+
+ vout->i_changes &= ~VOUT_SCALE_CHANGE;
+ }
+ if (vout->i_changes & VOUT_ON_TOP_CHANGE) {
+ vout_SetDisplayOnTop(vd, vout->b_on_top);
+
+ vout->i_changes &= ~VOUT_ON_TOP_CHANGE;
+ }
+ if (vout->i_changes & VOUT_CROP_CHANGE) {
+ const video_format_t crop = vout->fmt_in;
+ const video_format_t org = vout->fmt_render;
+ /* FIXME because of rounding errors, the reconstructed ratio is wrong */
+ unsigned num = 0;
+ unsigned den = 0;
+ if (crop.i_x_offset == org.i_x_offset &&
+ crop.i_visible_width == org.i_visible_width &&
+ crop.i_y_offset == org.i_y_offset + (org.i_visible_height - crop.i_visible_height)/2) {
+ vlc_ureduce(&num, &den,
+ crop.i_visible_width * crop.i_sar_num,
+ crop.i_visible_height * crop.i_sar_den, 0);
+ } else if (crop.i_y_offset == org.i_y_offset &&
+ crop.i_visible_height == org.i_visible_height &&
+ crop.i_x_offset == org.i_x_offset + (org.i_visible_width - crop.i_visible_width)/2) {
+ vlc_ureduce(&num, &den,
+ crop.i_visible_width * crop.i_sar_num,
+ crop.i_visible_height * crop.i_sar_den, 0);
+ }
+ vout_SetDisplayCrop(vd, num, den,
+ crop.i_x_offset, crop.i_y_offset,
+ crop.i_visible_width, crop.i_visible_height);
+ vout->i_changes &= ~VOUT_CROP_CHANGE;
+ }
+
+ }
+
+ if (sys->use_dr && vout_AreDisplayPicturesInvalid(vd)) {
+ vout->i_changes |= VOUT_PICTURE_BUFFERS_CHANGE;
+ }
+
+ vout_ManageDisplay(vd);
+ return VLC_SUCCESS;
+}
+
+/*****************************************************************************
+ * Render
+ *****************************************************************************/
+static void Render(vout_thread_t *vout, picture_t *picture)
+{
+ vout_sys_t *sys = vout->p_sys;
+ vout_display_t *vd = sys->vd;
+
+ assert(sys->use_dr || !picture->p_sys->direct);
+
+ if (sys->use_dr) {
+ assert(!vout_IsDisplayFiltered(vd));
+ assert(picture->p_sys->direct);
+
+ vout_display_Prepare(vd, picture->p_sys->direct);
+ } else {
+ picture_t *filtered = vout_FilterDisplay(vd, picture);
+ if (filtered) {
+ picture_t *direct = picture->p_sys->direct = vout_display_Get(vd);
+ if (direct) {
+ picture_Copy(direct, filtered);
+ vout_display_Prepare(vd, direct);
+ }
+ picture_Release(filtered);
+ }
+ }
+}
+
+/*****************************************************************************
+ *
+ *****************************************************************************/
+static void Display(vout_thread_t *vout, picture_t *picture)
+{
+ vout_sys_t *sys = vout->p_sys;
+ vout_display_t *vd = sys->vd;
+
+ picture_t *direct = picture->p_sys->direct;
+ if (!direct)
+ return;
+
+ /* XXX This is a hack that will work with current vout_display_t modules */
+ if (sys->use_dr)
+ picture_Hold(direct);
+
+ vout_display_Display(vd, direct);
+
+ if (!sys->use_dr)
+ picture->p_sys->direct = NULL;
+}
+
+static void VoutGetDisplayCfg(vout_thread_t *vout, vout_display_cfg_t *cfg, const char *title)
+{
+ /* Load configuration */
+ cfg->is_fullscreen = var_CreateGetBool(vout, "fullscreen");
+ cfg->display.title = title;
+ cfg->display.width = var_CreateGetInteger(vout, "width");
+ cfg->display.height = var_CreateGetInteger(vout, "height");
+ cfg->is_display_filled = var_CreateGetBool(vout, "autoscale");
+ cfg->display.sar.num = 1; /* TODO monitor AR */
+ cfg->display.sar.den = 1;
+ unsigned zoom_den = 1000;
+ unsigned zoom_num = zoom_den * var_CreateGetFloat(vout, "scale");
+ vlc_ureduce(&zoom_num, &zoom_den, zoom_num, zoom_den, 0);
+ cfg->zoom.num = zoom_num;
+ cfg->zoom.den = zoom_den;
+ cfg->align.vertical = VOUT_DISPLAY_ALIGN_CENTER;
+ cfg->align.horizontal = VOUT_DISPLAY_ALIGN_CENTER;
+ const int align_mask = var_CreateGetInteger(vout, "align");
+ if (align_mask & 0x1)
+ cfg->align.horizontal = VOUT_DISPLAY_ALIGN_LEFT;
+ else if (align_mask & 0x2)
+ cfg->align.horizontal = VOUT_DISPLAY_ALIGN_RIGHT;
+ if (align_mask & 0x4)
+ cfg->align.horizontal = VOUT_DISPLAY_ALIGN_TOP;
+ else if (align_mask & 0x8)
+ cfg->align.horizontal = VOUT_DISPLAY_ALIGN_BOTTOM;
+}
+
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