X-Git-Url: http://vcs.maemo.org/git/?a=blobdiff_plain;f=gst-plugins-base-subtitles0.10%2Fsys%2Fximage%2Fximagesink.h;fp=gst-plugins-base-subtitles0.10%2Fsys%2Fximage%2Fximagesink.h;h=83e973fa1c173a0947f64d2fa6218143c4d24ecc;hb=57ba96e291a055f69dbfd4ae9f1ae2390e36986e;hp=0000000000000000000000000000000000000000;hpb=be2c98fb83895d10ac44af7b9a9c3e00ca54bf49;p=mafwsubrenderer diff --git a/gst-plugins-base-subtitles0.10/sys/ximage/ximagesink.h b/gst-plugins-base-subtitles0.10/sys/ximage/ximagesink.h new file mode 100644 index 0000000..83e973f --- /dev/null +++ b/gst-plugins-base-subtitles0.10/sys/ximage/ximagesink.h @@ -0,0 +1,234 @@ +/* GStreamer + * Copyright (C) <2005> Julien Moutte + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library 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 + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifndef __GST_XIMAGESINK_H__ +#define __GST_XIMAGESINK_H__ + +#include + +#ifdef HAVE_XSHM +#include +#include +#include +#endif /* HAVE_XSHM */ + +#include +#include + +#ifdef HAVE_XSHM +#include +#endif /* HAVE_XSHM */ + +#include +#include + +G_BEGIN_DECLS +#define GST_TYPE_XIMAGESINK \ + (gst_ximagesink_get_type()) +#define GST_XIMAGESINK(obj) \ + (G_TYPE_CHECK_INSTANCE_CAST((obj), GST_TYPE_XIMAGESINK, GstXImageSink)) +#define GST_XIMAGESINK_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_XIMAGESINK, GstXImageSinkClass)) +#define GST_IS_XIMAGESINK(obj) \ + (G_TYPE_CHECK_INSTANCE_TYPE((obj), GST_TYPE_XIMAGESINK)) +#define GST_IS_XIMAGESINK_CLASS(klass) \ + (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_XIMAGESINK)) +typedef struct _GstXContext GstXContext; +typedef struct _GstXWindow GstXWindow; + +typedef struct _GstXImageBuffer GstXImageBuffer; +typedef struct _GstXImageBufferClass GstXImageBufferClass; + +typedef struct _GstXImageSink GstXImageSink; +typedef struct _GstXImageSinkClass GstXImageSinkClass; + +/* + * GstXContext: + * @disp: the X11 Display of this context + * @screen: the default Screen of Display @disp + * @screen_num: the Screen number of @screen + * @visual: the default Visual of Screen @screen + * @root: the root Window of Display @disp + * @white: the value of a white pixel on Screen @screen + * @black: the value of a black pixel on Screen @screen + * @depth: the color depth of Display @disp + * @bpp: the number of bits per pixel on Display @disp + * @endianness: the endianness of image bytes on Display @disp + * @width: the width in pixels of Display @disp + * @height: the height in pixels of Display @disp + * @widthmm: the width in millimeters of Display @disp + * @heightmm: the height in millimeters of Display @disp + * @par: the pixel aspect ratio calculated from @width, @widthmm and @height, + * @heightmm ratio + * @use_xshm: used to known wether of not XShm extension is usable or not even + * if the Extension is present + * @caps: the #GstCaps that Display @disp can accept + * + * Structure used to store various informations collected/calculated for a + * Display. + */ +struct _GstXContext +{ + Display *disp; + + Screen *screen; + gint screen_num; + + Visual *visual; + + Window root; + + gulong white, black; + + gint depth; + gint bpp; + gint endianness; + + gint width, height; + gint widthmm, heightmm; + GValue *par; /* calculated pixel aspect ratio */ + + gboolean use_xshm; + + GstCaps *caps; + GstCaps *last_caps; +}; + +/* + * GstXWindow: + * @win: the Window ID of this X11 window + * @width: the width in pixels of Window @win + * @height: the height in pixels of Window @win + * @internal: used to remember if Window @win was created internally or passed + * through the #GstXOverlay interface + * @gc: the Graphical Context of Window @win + * + * Structure used to store informations about a Window. + */ +struct _GstXWindow +{ + Window win; + gint width, height; + gboolean internal; + GC gc; +}; + +/** + * GstXImageBuffer: + * @ximagesink: a reference to our #GstXImageSink + * @ximage: the XImage of this buffer + * @width: the width in pixels of XImage @ximage + * @height: the height in pixels of XImage @ximage + * @size: the size in bytes of XImage @ximage + * + * Subclass of #GstBuffer containing additional information about an XImage. + */ +struct _GstXImageBuffer +{ + GstBuffer buffer; + + /* Reference to the ximagesink we belong to */ + GstXImageSink *ximagesink; + + XImage *ximage; + +#ifdef HAVE_XSHM + XShmSegmentInfo SHMInfo; +#endif /* HAVE_XSHM */ + + gint width, height; + size_t size; +}; + +/** + * GstXImageSink: + * @display_name: the name of the Display we want to render to + * @xcontext: our instance's #GstXContext + * @xwindow: the #GstXWindow we are rendering to + * @ximage: internal #GstXImage used to store incoming buffers and render when + * not using the buffer_alloc optimization mechanism + * @cur_image: a reference to the last #GstXImage that was put to @xwindow. It + * is used when Expose events are received to redraw the latest video frame + * @event_thread: a thread listening for events on @xwindow and handling them + * @running: used to inform @event_thread if it should run/shutdown + * @fps_n: the framerate fraction numerator + * @fps_d: the framerate fraction denominator + * @x_lock: used to protect X calls as we are not using the XLib in threaded + * mode + * @flow_lock: used to protect data flow routines from external calls such as + * events from @event_thread or methods from the #GstXOverlay interface + * @par: used to override calculated pixel aspect ratio from @xcontext + * @pool_lock: used to protect the buffer pool + * @buffer_pool: a list of #GstXImageBuffer that could be reused at next buffer + * allocation call + * @synchronous: used to store if XSynchronous should be used or not (for + * debugging purpose only) + * @keep_aspect: used to remember if reverse negotiation scaling should respect + * aspect ratio + * @handle_events: used to know if we should handle select XEvents or not + * + * The #GstXImageSink data structure. + */ +struct _GstXImageSink +{ + /* Our element stuff */ + GstVideoSink videosink; + + char *display_name; + + GstXContext *xcontext; + GstXWindow *xwindow; + GstXImageBuffer *ximage; + GstXImageBuffer *cur_image; + + GThread *event_thread; + gboolean running; + + /* Framerate numerator and denominator */ + gint fps_n; + gint fps_d; + + GMutex *x_lock; + GMutex *flow_lock; + + /* object-set pixel aspect ratio */ + GValue *par; + + GMutex *pool_lock; + GSList *buffer_pool; + + gboolean synchronous; + gboolean keep_aspect; + gboolean handle_events; + gboolean handle_expose; + gboolean draw_border; + + /* stream metadata */ + gchar *media_title; +}; + +struct _GstXImageSinkClass +{ + GstVideoSinkClass parent_class; +}; + +GType gst_ximagesink_get_type (void); + +G_END_DECLS +#endif /* __GST_XIMAGESINK_H__ */