/* * 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 #define GST_GL_TYPE_WINDOW (gst_gl_window_get_type()) #define GST_GL_WINDOW(o) (G_TYPE_CHECK_INSTANCE_CAST((o), GST_GL_TYPE_WINDOW, GstGLWindow)) #define GST_GL_WINDOW_CLASS(k) (G_TYPE_CHECK_CLASS((k), GST_GL_TYPE_WINDOW, GstGLWindowClass)) #define GST_GL_IS_WINDOW(o) (G_TYPE_CHECK_INSTANCE_TYPE((o), GST_GL_TYPE_WINDOW)) #define GST_GL_IS_WINDOW_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE((k), GST_GL_TYPE_WINDOW)) #define GST_GL_WINDOW_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS((o), GST_GL_TYPE_WINDOW, GstGLWindowClass)) #define GST_GL_WINDOW_LOCK(w) \ do { \ if (GST_GL_WINDOW(w)->need_lock) \ g_mutex_lock (&GST_GL_WINDOW(w)->lock); \ } while (0) #define GST_GL_WINDOW_UNLOCK(w) \ do { \ if (GST_GL_WINDOW(w)->need_lock) \ g_mutex_unlock (&GST_GL_WINDOW(w)->lock); \ } while (0) #define GST_GL_WINDOW_GET_LOCK(w) (&GST_GL_WINDOW(w)->lock) #define GST_GL_WINDOW_ERROR (gst_gl_window_error_quark ()) 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); #define GST_GL_WINDOW_CB(f) ((GstGLWindowCB) (f)) #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 >*/ GObject parent; GMutex lock; gboolean need_lock; GWeakRef context_ref; guintptr external_gl_context; 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; /*< private >*/ gpointer _reserved[GST_PADDING]; GstGLWindowPrivate *priv; }; /** * GstGLWindowClass: * @parent_class: Parent class * @get_display: Gets the current windowing system display connection * @set_window_handle: Set a window to render into * @get_window_handle: Gets the current window that this #GstGLWindow is * rendering into * @draw_unlocked: redraw the window with the specified dimensions * @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 */ struct _GstGLWindowClass { GObjectClass parent_class; guintptr (*get_display) (GstGLWindow *window); void (*set_window_handle) (GstGLWindow *window, guintptr id); guintptr (*get_window_handle) (GstGLWindow *window); void (*draw_unlocked) (GstGLWindow *window, guint width, guint height); void (*draw) (GstGLWindow *window, guint width, guint height); 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); /*< private >*/ gpointer _reserved[GST_PADDING]; }; /* methods */ GQuark gst_gl_window_error_quark (void); GType gst_gl_window_get_type (void); GstGLWindow * gst_gl_window_new (GstGLDisplay *display); void gst_gl_window_set_draw_callback (GstGLWindow *window, GstGLWindowCB callback, gpointer data, GDestroyNotify destroy_notify); void gst_gl_window_set_resize_callback (GstGLWindow *window, GstGLWindowResizeCB callback, gpointer data, GDestroyNotify destroy_notify); void gst_gl_window_set_close_callback (GstGLWindow *window, GstGLWindowCB callback, gpointer data, GDestroyNotify destroy_notify); void gst_gl_window_set_need_lock (GstGLWindow *window, gboolean need_lock); void gst_gl_window_set_window_handle (GstGLWindow *window, guintptr handle); guintptr gst_gl_window_get_window_handle (GstGLWindow *window); void gst_gl_window_draw_unlocked (GstGLWindow *window, guint width, guint height); void gst_gl_window_draw (GstGLWindow *window, guint width, guint height); void gst_gl_window_run (GstGLWindow *window); void gst_gl_window_quit (GstGLWindow *window); void gst_gl_window_send_message (GstGLWindow *window, GstGLWindowCB callback, gpointer data); void gst_gl_window_send_message_async (GstGLWindow *window, GstGLWindowCB callback, gpointer data, GDestroyNotify destroy); guintptr gst_gl_window_get_display (GstGLWindow *window); GstGLContext * gst_gl_window_get_context (GstGLWindow *window); gboolean gst_gl_window_is_running (GstGLWindow *window); GST_DEBUG_CATEGORY_EXTERN (gst_gl_window_debug); G_END_DECLS #endif /* __GST_GL_WINDOW_H__ */