/* * GStreamer * Copyright (C) 2008 Julien Isorce * Copyright (C) 2012 Matthew Waters * * 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., 51 Franklin St, Fifth Floor, * Boston, MA 02110-1301, USA. */ #ifndef __GST_GL_WINDOW_H__ #define __GST_GL_WINDOW_H__ #include #include #include #include G_BEGIN_DECLS GST_GL_API GType gst_gl_window_get_type (void); #define GST_TYPE_GL_WINDOW (gst_gl_window_get_type()) #define GST_GL_WINDOW(o) (G_TYPE_CHECK_INSTANCE_CAST((o), GST_TYPE_GL_WINDOW, GstGLWindow)) #define GST_GL_WINDOW_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), GST_TYPE_GL_WINDOW, GstGLWindowClass)) #define GST_IS_GL_WINDOW(o) (G_TYPE_CHECK_INSTANCE_TYPE((o), GST_TYPE_GL_WINDOW)) #define GST_IS_GL_WINDOW_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE((k), GST_TYPE_GL_WINDOW)) #define GST_GL_WINDOW_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS((o), GST_TYPE_GL_WINDOW, GstGLWindowClass)) #define GST_GL_WINDOW_LOCK(w) g_mutex_lock(&GST_GL_WINDOW(w)->lock) #define GST_GL_WINDOW_UNLOCK(w) g_mutex_unlock(&GST_GL_WINDOW(w)->lock) #define GST_GL_WINDOW_GET_LOCK(w) (&GST_GL_WINDOW(w)->lock) GST_GL_API GQuark gst_gl_window_error_quark (void); /** * GST_GL_WINDOW_ERROR: * * Error domain for GStreamer's GL window module. Errors in this domain will be * from the #GstGLWindowError enumeration */ #define GST_GL_WINDOW_ERROR (gst_gl_window_error_quark ()) /** * GstGLWindowError: * @GST_GL_WINDOW_ERROR_FAILED: failed for a unspecified reason * @GST_GL_WINDOW_ERROR_OLD_LIBS: the implementation is too old * @GST_GL_WINDOW_ERROR_RESOURCE_UNAVAILABLE: no such resource was found */ typedef enum { GST_GL_WINDOW_ERROR_FAILED, GST_GL_WINDOW_ERROR_OLD_LIBS, GST_GL_WINDOW_ERROR_RESOURCE_UNAVAILABLE, } GstGLWindowError; typedef void (*GstGLWindowCB) (gpointer data); typedef void (*GstGLWindowResizeCB) (gpointer data, guint width, guint height); /** * GST_GL_WINDOW_CB: * @f: the function to cast * * Cast to the currect function type for generic window callbacks */ #define GST_GL_WINDOW_CB(f) ((GstGLWindowCB) (f)) /** * GST_GL_WINDOW_RESIZE_CB: * @f: the function to cast * * Cast to the currect function type for window resize callbacks */ #define GST_GL_WINDOW_RESIZE_CB(f) ((GstGLWindowResizeCB) (f)) /** * GstGLWindow: * * #GstGLWindow is an opaque struct and should only be accessed through the * provided api. */ struct _GstGLWindow { /*< private >*/ GstObject parent; GMutex lock; GstGLDisplay *display; GWeakRef context_ref; /*< protected >*/ gboolean is_drawing; GstGLWindowCB draw; gpointer draw_data; GDestroyNotify draw_notify; GstGLWindowCB close; gpointer close_data; GDestroyNotify close_notify; GstGLWindowResizeCB resize; gpointer resize_data; GDestroyNotify resize_notify; gboolean queue_resize; GMainContext *main_context; /* default main_context */ /*< private >*/ GstGLWindowPrivate *priv; gpointer _reserved[GST_PADDING]; }; /** * GstGLWindowClass: * @parent_class: Parent class * @get_display: Gets the current windowing system display connection * @set_window_handle: Set a window handle to render into * @get_window_handle: Gets the current window handle that this #GstGLWindow is * rendering into. This may return a different value to * what is passed into @set_window_handle * @draw: redraw the window with the specified dimensions * @run: run the mainloop * @quit: send a quit to the mainloop * @send_message: invoke a function on the window thread. Required to be reentrant. * @send_message_async: invoke a function on the window thread. @run may or may * not have been called. Required to be reentrant. * @open: open the connection to the display * @close: close the connection to the display * @handle_events: whether to handle 'extra' events from the windowing system. * Basic events like surface moves and resizes are still valid * things to listen for. * @set_preferred_size: request that the window change surface size. The * implementation is free to ignore this information. * @show: request that the window be shown to the user * @set_render_rectangle: request a rectangle to render into. See #GstVideoOverlay * @queue_resize: request a resize to occur when possible */ struct _GstGLWindowClass { GstObjectClass parent_class; guintptr (*get_display) (GstGLWindow *window); void (*set_window_handle) (GstGLWindow *window, guintptr handle); guintptr (*get_window_handle) (GstGLWindow *window); void (*draw) (GstGLWindow *window); void (*run) (GstGLWindow *window); void (*quit) (GstGLWindow *window); void (*send_message) (GstGLWindow *window, GstGLWindowCB callback, gpointer data); void (*send_message_async) (GstGLWindow *window, GstGLWindowCB callback, gpointer data, GDestroyNotify destroy); gboolean (*open) (GstGLWindow *window, GError **error); void (*close) (GstGLWindow *window); void (*handle_events) (GstGLWindow *window, gboolean handle_events); void (*set_preferred_size) (GstGLWindow *window, gint width, gint height); void (*show) (GstGLWindow *window); gboolean (*set_render_rectangle)(GstGLWindow *window, gint x, gint y, gint width, gint height); void (*queue_resize) (GstGLWindow *window); /*< private >*/ gpointer _reserved[GST_PADDING]; }; GST_GL_API GstGLWindow * gst_gl_window_new (GstGLDisplay *display); /* callbacks */ GST_GL_API void gst_gl_window_set_draw_callback (GstGLWindow *window, GstGLWindowCB callback, gpointer data, GDestroyNotify destroy_notify); GST_GL_API void gst_gl_window_set_resize_callback (GstGLWindow *window, GstGLWindowResizeCB callback, gpointer data, GDestroyNotify destroy_notify); GST_GL_API void gst_gl_window_set_close_callback (GstGLWindow *window, GstGLWindowCB callback, gpointer data, GDestroyNotify destroy_notify); GST_GL_API void gst_gl_window_set_window_handle (GstGLWindow *window, guintptr handle); GST_GL_API guintptr gst_gl_window_get_window_handle (GstGLWindow *window); /* loop/events */ GST_GL_API void gst_gl_window_run (GstGLWindow *window); GST_GL_API void gst_gl_window_quit (GstGLWindow *window); GST_GL_API void gst_gl_window_send_message (GstGLWindow *window, GstGLWindowCB callback, gpointer data); GST_GL_API void gst_gl_window_send_message_async (GstGLWindow *window, GstGLWindowCB callback, gpointer data, GDestroyNotify destroy); /* navigation */ GST_GL_API void gst_gl_window_handle_events (GstGLWindow * window, gboolean handle_events); GST_GL_API void gst_gl_window_send_key_event (GstGLWindow * window, const char * event_type, const char * key_str); GST_GL_API void gst_gl_window_send_mouse_event (GstGLWindow * window, const char * event_type, int button, double posx, double posy); /* surfaces/rendering */ GST_GL_API void gst_gl_window_queue_resize (GstGLWindow *window); GST_GL_API void gst_gl_window_draw (GstGLWindow *window); GST_GL_API void gst_gl_window_show (GstGLWindow *window); GST_GL_API void gst_gl_window_set_preferred_size (GstGLWindow * window, gint width, gint height); GST_GL_API void gst_gl_window_get_surface_dimensions (GstGLWindow * window, guint * width, guint * height); GST_GL_API gboolean gst_gl_window_set_render_rectangle (GstGLWindow * window, gint x, gint y, gint width, gint height); /* subclass usage only */ GST_GL_API void gst_gl_window_resize (GstGLWindow *window, guint width, guint height); GST_GL_API GstGLContext * gst_gl_window_get_context (GstGLWindow *window); GST_GL_API guintptr gst_gl_window_get_display (GstGLWindow *window); G_END_DECLS #endif /* __GST_GL_WINDOW_H__ */