mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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320 lines
8.9 KiB
C
320 lines
8.9 KiB
C
/*
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* GStreamer
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* Copyright (C) 2008 Julien Isorce <julien.isorce@gmail.com>
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* Copyright (C) 2012 Matthew Waters <ystreet00@gmail.com>
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* Copyright (C) 2013 Sebastian Dröge <slomo@circular-chaos.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/* TODO: - Window resize handling
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* - Event handling input event handling
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstglwindow_android_egl.h"
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#define GST_CAT_DEFAULT gst_gl_window_debug
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#define gst_gl_window_android_egl_parent_class parent_class
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G_DEFINE_TYPE (GstGLWindowAndroidEGL, gst_gl_window_android_egl,
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GST_GL_TYPE_WINDOW);
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static guintptr gst_gl_window_android_egl_get_gl_context (GstGLWindow * window);
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static gboolean gst_gl_window_android_egl_activate (GstGLWindow * window,
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gboolean activate);
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static void gst_gl_window_android_egl_set_window_handle (GstGLWindow * window,
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guintptr handle);
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static void gst_gl_window_android_egl_draw (GstGLWindow * window, guint width,
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guint height);
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static void gst_gl_window_android_egl_run (GstGLWindow * window);
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static void gst_gl_window_android_egl_quit (GstGLWindow * window,
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GstGLWindowCB callback, gpointer data);
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static void gst_gl_window_android_egl_send_message (GstGLWindow * window,
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GstGLWindowCB callback, gpointer data);
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static void gst_gl_window_android_egl_destroy_context (GstGLWindowAndroidEGL *
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window_egl);
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static gboolean gst_gl_window_android_egl_create_context (GstGLWindow
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* window, GstGLAPI gl_api, guintptr external_gl_context, GError ** error);
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static GstGLAPI gst_gl_window_android_egl_get_gl_api (GstGLWindow * window);
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static gpointer gst_gl_window_android_egl_get_proc_address (GstGLWindow *
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window, const gchar * name);
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static void gst_gl_window_android_egl_close (GstGLWindow * window);
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static void
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gst_gl_window_android_egl_class_init (GstGLWindowAndroidEGLClass * klass)
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{
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GstGLWindowClass *window_class = (GstGLWindowClass *) klass;
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window_class->create_context =
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GST_DEBUG_FUNCPTR (gst_gl_window_android_egl_create_context);
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window_class->get_gl_context =
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GST_DEBUG_FUNCPTR (gst_gl_window_android_egl_get_gl_context);
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window_class->activate =
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GST_DEBUG_FUNCPTR (gst_gl_window_android_egl_activate);
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window_class->set_window_handle =
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GST_DEBUG_FUNCPTR (gst_gl_window_android_egl_set_window_handle);
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window_class->draw_unlocked =
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GST_DEBUG_FUNCPTR (gst_gl_window_android_egl_draw);
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window_class->draw = GST_DEBUG_FUNCPTR (gst_gl_window_android_egl_draw);
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window_class->run = GST_DEBUG_FUNCPTR (gst_gl_window_android_egl_run);
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window_class->quit = GST_DEBUG_FUNCPTR (gst_gl_window_android_egl_quit);
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window_class->send_message =
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GST_DEBUG_FUNCPTR (gst_gl_window_android_egl_send_message);
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window_class->get_gl_api =
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GST_DEBUG_FUNCPTR (gst_gl_window_android_egl_get_gl_api);
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window_class->get_proc_address =
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GST_DEBUG_FUNCPTR (gst_gl_window_android_egl_get_proc_address);
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window_class->close = GST_DEBUG_FUNCPTR (gst_gl_window_android_egl_close);
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}
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static void
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gst_gl_window_android_egl_init (GstGLWindowAndroidEGL * window)
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{
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}
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/* Must be called in the gl thread */
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GstGLWindowAndroidEGL *
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gst_gl_window_android_egl_new (void)
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{
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GstGLWindowAndroidEGL *window;
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GST_DEBUG ("creating Android EGL window");
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window = g_object_new (GST_GL_TYPE_WINDOW_ANDROID_EGL, NULL);
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gst_gl_window_set_need_lock (GST_GL_WINDOW (window), FALSE);
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return window;
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}
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static void
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gst_gl_window_android_egl_close (GstGLWindow * window)
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{
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GstGLWindowAndroidEGL *window_egl;
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window_egl = GST_GL_WINDOW_ANDROID_EGL (window);
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gst_gl_window_android_egl_destroy_context (window_egl);
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}
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gboolean
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gst_gl_window_android_egl_create_context (GstGLWindow * window,
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GstGLAPI gl_api, guintptr external_gl_context, GError ** error)
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{
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GstGLWindowAndroidEGL *window_egl = GST_GL_WINDOW_ANDROID_EGL (window);
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window_egl->main_context = g_main_context_new ();
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window_egl->loop = g_main_loop_new (window_egl->main_context, FALSE);
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window_egl->egl =
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gst_gl_egl_create_context (eglGetDisplay (EGL_DEFAULT_DISPLAY),
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window_egl->native_window, gl_api, external_gl_context, error);
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if (!window_egl->egl)
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goto failure;
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return TRUE;
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failure:
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return FALSE;
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}
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static void
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gst_gl_window_android_egl_destroy_context (GstGLWindowAndroidEGL * window_egl)
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{
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gst_gl_egl_activate (window_egl->egl, FALSE);
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gst_gl_egl_destroy_context (window_egl->egl);
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window_egl->egl = NULL;
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g_main_loop_unref (window_egl->loop);
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g_main_context_unref (window_egl->main_context);
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}
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static gboolean
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gst_gl_window_android_egl_activate (GstGLWindow * window, gboolean activate)
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{
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GstGLWindowAndroidEGL *window_egl;
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window_egl = GST_GL_WINDOW_ANDROID_EGL (window);
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return gst_gl_egl_activate (window_egl->egl, activate);
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}
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static guintptr
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gst_gl_window_android_egl_get_gl_context (GstGLWindow * window)
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{
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GstGLWindowAndroidEGL *window_egl;
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window_egl = GST_GL_WINDOW_ANDROID_EGL (window);
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return gst_gl_egl_get_gl_context (window_egl->egl);
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}
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static GstGLAPI
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gst_gl_window_android_egl_get_gl_api (GstGLWindow * window)
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{
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GstGLWindowAndroidEGL *window_egl;
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window_egl = GST_GL_WINDOW_ANDROID_EGL (window);
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return gst_gl_egl_get_gl_api (window_egl->egl);
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}
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static void
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gst_gl_window_android_egl_swap_buffers (GstGLWindow * window)
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{
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GstGLWindowAndroidEGL *window_egl = GST_GL_WINDOW_ANDROID_EGL (window);
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gst_gl_egl_swap_buffers (window_egl->egl);
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}
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static void
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gst_gl_window_android_egl_run (GstGLWindow * window)
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{
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GstGLWindowAndroidEGL *window_egl;
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window_egl = GST_GL_WINDOW_ANDROID_EGL (window);
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GST_LOG ("starting main loop");
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g_main_loop_run (window_egl->loop);
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GST_LOG ("exiting main loop");
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}
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static void
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gst_gl_window_android_egl_quit (GstGLWindow * window, GstGLWindowCB callback,
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gpointer data)
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{
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GstGLWindowAndroidEGL *window_egl;
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window_egl = GST_GL_WINDOW_ANDROID_EGL (window);
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if (callback)
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gst_gl_window_android_egl_send_message (window, callback, data);
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GST_LOG ("sending quit");
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g_main_loop_quit (window_egl->loop);
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GST_LOG ("quit sent");
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}
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typedef struct _GstGLMessage
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{
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GMutex lock;
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GCond cond;
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gboolean fired;
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GstGLWindowCB callback;
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gpointer data;
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} GstGLMessage;
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static gboolean
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_run_message (GstGLMessage * message)
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{
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g_mutex_lock (&message->lock);
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if (message->callback)
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message->callback (message->data);
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message->fired = TRUE;
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g_cond_signal (&message->cond);
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g_mutex_unlock (&message->lock);
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return FALSE;
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}
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static void
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gst_gl_window_android_egl_send_message (GstGLWindow * window,
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GstGLWindowCB callback, gpointer data)
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{
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GstGLWindowAndroidEGL *window_egl;
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GstGLMessage message;
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window_egl = GST_GL_WINDOW_ANDROID_EGL (window);
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message.callback = callback;
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message.data = data;
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message.fired = FALSE;
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g_mutex_init (&message.lock);
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g_cond_init (&message.cond);
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g_main_context_invoke (window_egl->main_context, (GSourceFunc) _run_message,
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&message);
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g_mutex_lock (&message.lock);
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while (!message.fired)
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g_cond_wait (&message.cond, &message.lock);
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g_mutex_unlock (&message.lock);
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}
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static void
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gst_gl_window_android_egl_set_window_handle (GstGLWindow * window,
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guintptr handle)
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{
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GstGLWindowAndroidEGL *window_egl = GST_GL_WINDOW_ANDROID_EGL (window);
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window_egl->native_window = (EGLNativeWindowType) handle;
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}
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struct draw
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{
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GstGLWindowAndroidEGL *window;
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guint width, height;
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};
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static void
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draw_cb (gpointer data)
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{
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struct draw *draw_data = data;
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GstGLWindowAndroidEGL *window_egl = draw_data->window;
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GstGLWindow *window = GST_GL_WINDOW (window_egl);
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if (window->draw)
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window->draw (window->draw_data);
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gst_gl_window_android_egl_swap_buffers (window);
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}
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static void
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gst_gl_window_android_egl_draw (GstGLWindow * window, guint width, guint height)
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{
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struct draw draw_data;
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draw_data.window = GST_GL_WINDOW_ANDROID_EGL (window);
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draw_data.width = width;
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draw_data.height = height;
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gst_gl_window_send_message (window, (GstGLWindowCB) draw_cb, &draw_data);
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}
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static gpointer
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gst_gl_window_android_egl_get_proc_address (GstGLWindow * window,
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const gchar * name)
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{
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GstGLWindowAndroidEGL *window_egl;
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gpointer result;
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window_egl = GST_GL_WINDOW_ANDROID_EGL (window);
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if (!(result = gst_gl_egl_get_proc_address (window_egl->egl, name))) {
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result = gst_gl_window_default_get_proc_address (window, name);
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}
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return result;
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}
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