| /* |
| * GStreamer |
| * Copyright (C) 2014 Sebastian Dröge <sebastian@centricular.com> |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it un der 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. |
| */ |
| |
| #ifdef HAVE_CONFIG_H |
| #include "config.h" |
| #endif |
| |
| #import <OpenGLES/EAGL.h> |
| #import <QuartzCore/QuartzCore.h> |
| #import <UIKit/UIKit.h> |
| |
| #include "gstglwindow_eagl.h" |
| #include "gstglcontext_eagl.h" |
| |
| #define GST_GL_WINDOW_EAGL_GET_PRIVATE(o) \ |
| (G_TYPE_INSTANCE_GET_PRIVATE((o), GST_GL_TYPE_WINDOW_EAGL, GstGLWindowEaglPrivate)) |
| |
| #define GST_CAT_DEFAULT gst_gl_window_eagl_debug |
| GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT); |
| |
| #define DEBUG_INIT \ |
| GST_DEBUG_CATEGORY_GET (GST_CAT_DEFAULT, "glwindow"); |
| #define gst_gl_window_eagl_parent_class parent_class |
| G_DEFINE_TYPE_WITH_CODE (GstGLWindowEagl, gst_gl_window_eagl, |
| GST_GL_TYPE_WINDOW, DEBUG_INIT); |
| static void gst_gl_window_eagl_finalize (GObject * object); |
| |
| static guintptr gst_gl_window_eagl_get_display (GstGLWindow * window); |
| static guintptr gst_gl_window_eagl_get_window_handle (GstGLWindow * window); |
| static void gst_gl_window_eagl_set_window_handle (GstGLWindow * window, |
| guintptr handle); |
| static void gst_gl_window_eagl_set_preferred_size (GstGLWindow * window, |
| gint width, gint height); |
| static void gst_gl_window_eagl_draw (GstGLWindow * window); |
| static void gst_gl_window_eagl_run (GstGLWindow * window); |
| static void gst_gl_window_eagl_quit (GstGLWindow * window); |
| static void gst_gl_window_eagl_send_message_async (GstGLWindow * window, |
| GstGLWindowCB callback, gpointer data, GDestroyNotify destroy); |
| static gboolean gst_gl_window_eagl_open (GstGLWindow * window, GError ** error); |
| static void gst_gl_window_eagl_close (GstGLWindow * window); |
| |
| struct _GstGLWindowEaglPrivate |
| { |
| UIView *view; |
| gint window_width, window_height; |
| gint preferred_width, preferred_height; |
| |
| GMainContext *main_context; |
| GMainLoop *loop; |
| }; |
| |
| static void |
| gst_gl_window_eagl_class_init (GstGLWindowEaglClass * klass) |
| { |
| GstGLWindowClass *window_class = (GstGLWindowClass *) klass; |
| GObjectClass *gobject_class = (GObjectClass *) klass; |
| |
| g_type_class_add_private (klass, sizeof (GstGLWindowEaglPrivate)); |
| |
| window_class->get_display = |
| GST_DEBUG_FUNCPTR (gst_gl_window_eagl_get_display); |
| window_class->get_window_handle = |
| GST_DEBUG_FUNCPTR (gst_gl_window_eagl_get_window_handle); |
| window_class->set_window_handle = |
| GST_DEBUG_FUNCPTR (gst_gl_window_eagl_set_window_handle); |
| window_class->draw_unlocked = GST_DEBUG_FUNCPTR (gst_gl_window_eagl_draw); |
| window_class->draw = GST_DEBUG_FUNCPTR (gst_gl_window_eagl_draw); |
| window_class->run = GST_DEBUG_FUNCPTR (gst_gl_window_eagl_run); |
| window_class->quit = GST_DEBUG_FUNCPTR (gst_gl_window_eagl_quit); |
| window_class->send_message_async = |
| GST_DEBUG_FUNCPTR (gst_gl_window_eagl_send_message_async); |
| window_class->open = GST_DEBUG_FUNCPTR (gst_gl_window_eagl_open); |
| window_class->close = GST_DEBUG_FUNCPTR (gst_gl_window_eagl_close); |
| window_class->set_preferred_size = |
| GST_DEBUG_FUNCPTR (gst_gl_window_eagl_set_preferred_size); |
| |
| gobject_class->finalize = gst_gl_window_eagl_finalize; |
| } |
| |
| static void |
| gst_gl_window_eagl_init (GstGLWindowEagl * window) |
| { |
| window->priv = GST_GL_WINDOW_EAGL_GET_PRIVATE (window); |
| |
| window->priv->main_context = g_main_context_new (); |
| window->priv->loop = g_main_loop_new (window->priv->main_context, FALSE); |
| } |
| |
| static void |
| gst_gl_window_eagl_finalize (GObject * object) |
| { |
| GstGLWindowEagl *window_eagl = GST_GL_WINDOW_EAGL (object); |
| |
| g_main_loop_unref (window_eagl->priv->loop); |
| g_main_context_unref (window_eagl->priv->main_context); |
| |
| G_OBJECT_CLASS (parent_class)->finalize (object); |
| } |
| |
| /* Must be called in the gl thread */ |
| GstGLWindowEagl * |
| gst_gl_window_eagl_new (void) |
| { |
| GstGLWindowEagl *window = g_object_new (GST_GL_TYPE_WINDOW_EAGL, NULL); |
| |
| return window; |
| } |
| |
| static guintptr |
| gst_gl_window_eagl_get_display (GstGLWindow * window) |
| { |
| return 0; |
| } |
| |
| static guintptr |
| gst_gl_window_eagl_get_window_handle (GstGLWindow * window) |
| { |
| return (guintptr) GST_GL_WINDOW_EAGL (window)->priv->view; |
| } |
| |
| static void |
| gst_gl_window_eagl_set_window_handle (GstGLWindow * window, guintptr handle) |
| { |
| GstGLWindowEagl *window_eagl; |
| GstGLContext *context; |
| |
| window_eagl = GST_GL_WINDOW_EAGL (window); |
| context = gst_gl_window_get_context (window); |
| |
| window_eagl->priv->view = (UIView *) handle; |
| GST_INFO_OBJECT (context, "handle set, updating layer"); |
| gst_gl_context_eagl_update_layer (context); |
| } |
| |
| static gboolean |
| gst_gl_window_eagl_open (GstGLWindow * window, GError ** error) |
| { |
| return TRUE; |
| } |
| |
| static void |
| gst_gl_window_eagl_close (GstGLWindow * window) |
| { |
| } |
| |
| static void |
| gst_gl_window_eagl_run (GstGLWindow * window) |
| { |
| GstGLWindowEagl *window_eagl; |
| |
| window_eagl = GST_GL_WINDOW_EAGL (window); |
| |
| GST_LOG ("starting main loop"); |
| g_main_loop_run (window_eagl->priv->loop); |
| GST_LOG ("exiting main loop"); |
| } |
| |
| static void |
| gst_gl_window_eagl_quit (GstGLWindow * window) |
| { |
| GstGLWindowEagl *window_eagl; |
| |
| window_eagl = GST_GL_WINDOW_EAGL (window); |
| |
| GST_LOG ("sending quit"); |
| |
| g_main_loop_quit (window_eagl->priv->loop); |
| |
| GST_LOG ("quit sent"); |
| } |
| |
| typedef struct _GstGLMessage |
| { |
| GstGLWindowCB callback; |
| gpointer data; |
| GDestroyNotify destroy; |
| } GstGLMessage; |
| |
| static gboolean |
| _run_message (GstGLMessage * message) |
| { |
| if (message->callback) |
| message->callback (message->data); |
| |
| if (message->destroy) |
| message->destroy (message->data); |
| |
| g_slice_free (GstGLMessage, message); |
| |
| return FALSE; |
| } |
| |
| static void |
| gst_gl_window_eagl_send_message_async (GstGLWindow * window, |
| GstGLWindowCB callback, gpointer data, GDestroyNotify destroy) |
| { |
| GstGLWindowEagl *window_eagl; |
| GstGLMessage *message; |
| |
| window_eagl = GST_GL_WINDOW_EAGL (window); |
| message = g_slice_new (GstGLMessage); |
| |
| message->callback = callback; |
| message->data = data; |
| message->destroy = destroy; |
| |
| g_main_context_invoke (window_eagl->priv->main_context, |
| (GSourceFunc) _run_message, message); |
| } |
| |
| static void |
| gst_gl_window_eagl_set_preferred_size (GstGLWindow * window, gint width, gint height) |
| { |
| GstGLWindowEagl *window_eagl = GST_GL_WINDOW_EAGL (window); |
| |
| window_eagl->priv->preferred_width = width; |
| window_eagl->priv->preferred_height = height; |
| } |
| |
| static void |
| draw_cb (gpointer data) |
| { |
| GstGLWindowEagl *window_eagl = data; |
| GstGLWindow *window = GST_GL_WINDOW (window_eagl); |
| GstGLContext *context = gst_gl_window_get_context (window); |
| GstGLContextEagl *eagl_context = GST_GL_CONTEXT_EAGL (context); |
| GstGLContextClass *context_class = GST_GL_CONTEXT_GET_CLASS (context); |
| |
| if (window_eagl->priv->view) { |
| CGSize size; |
| CAEAGLLayer *eagl_layer; |
| |
| eagl_layer = (CAEAGLLayer *)[window_eagl->priv->view layer]; |
| size = eagl_layer.frame.size; |
| |
| if (window_eagl->priv->window_width != size.width || |
| window_eagl->priv->window_height != size.height) { |
| |
| window_eagl->priv->window_width = size.width; |
| window_eagl->priv->window_height = size.height; |
| |
| gst_gl_context_eagl_resize (eagl_context); |
| |
| if (window->resize) |
| window->resize (window->resize_data, window_eagl->priv->window_width, |
| window_eagl->priv->window_height); |
| } |
| } |
| |
| gst_gl_context_eagl_prepare_draw (eagl_context); |
| |
| if (window->draw) |
| window->draw (window->draw_data); |
| |
| context_class->swap_buffers (context); |
| |
| gst_gl_context_eagl_finish_draw (eagl_context); |
| |
| gst_object_unref (context); |
| } |
| |
| static void |
| gst_gl_window_eagl_draw (GstGLWindow * window) |
| { |
| gst_gl_window_send_message (window, (GstGLWindowCB) draw_cb, window); |
| } |