1 /*
2 * GStreamer
3 * Copyright (C) 2008 Julien Isorce <julien.isorce@gmail.com>
4 * Copyright (C) 2012 Matthew Waters <ystreet00@gmail.com>
5 * Copyright (C) 2013 Sebastian Dröge <slomo@circular-chaos.org>
6 *
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
11 *
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
16 *
17 * You should have received a copy of the GNU Library General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
20 * Boston, MA 02110-1301, USA.
21 */
22
23 /* TODO: - Window resize handling
24 * - Event handling input event handling
25 */
26
27 #ifdef HAVE_CONFIG_H
28 #include "config.h"
29 #endif
30
31 #include <gst/gst.h>
32
33 #include <gst/gl/egl/gstglcontext_egl.h>
34 #include "gstglwindow_android_egl.h"
35 #include "../gstglwindow_private.h"
36
37 #define GST_CAT_DEFAULT gst_gl_window_debug
38
39 #define gst_gl_window_android_egl_parent_class parent_class
40 G_DEFINE_TYPE (GstGLWindowAndroidEGL, gst_gl_window_android_egl,
41 GST_TYPE_GL_WINDOW);
42
43 static guintptr gst_gl_window_android_egl_get_display (GstGLWindow * window);
44 static guintptr gst_gl_window_android_egl_get_window_handle (GstGLWindow *
45 window);
46 static void gst_gl_window_android_egl_set_window_handle (GstGLWindow * window,
47 guintptr handle);
48 static void gst_gl_window_android_egl_draw (GstGLWindow * window);
49
50 static void
gst_gl_window_android_egl_class_init(GstGLWindowAndroidEGLClass * klass)51 gst_gl_window_android_egl_class_init (GstGLWindowAndroidEGLClass * klass)
52 {
53 GstGLWindowClass *window_class = (GstGLWindowClass *) klass;
54
55 window_class->get_display =
56 GST_DEBUG_FUNCPTR (gst_gl_window_android_egl_get_display);
57 window_class->get_window_handle =
58 GST_DEBUG_FUNCPTR (gst_gl_window_android_egl_get_window_handle);
59 window_class->set_window_handle =
60 GST_DEBUG_FUNCPTR (gst_gl_window_android_egl_set_window_handle);
61 window_class->draw = GST_DEBUG_FUNCPTR (gst_gl_window_android_egl_draw);
62 }
63
64 static void
gst_gl_window_android_egl_init(GstGLWindowAndroidEGL * window)65 gst_gl_window_android_egl_init (GstGLWindowAndroidEGL * window)
66 {
67 }
68
69 /* Must be called in the gl thread */
70 GstGLWindowAndroidEGL *
gst_gl_window_android_egl_new(GstGLDisplay * display)71 gst_gl_window_android_egl_new (GstGLDisplay * display)
72 {
73 GstGLWindowAndroidEGL *window;
74
75 if ((gst_gl_display_get_handle_type (display) & GST_GL_DISPLAY_TYPE_EGL) == 0)
76 /* we require an egl display to create android windows */
77 return NULL;
78
79 GST_DEBUG ("creating Android EGL window");
80
81 window = g_object_new (GST_TYPE_GL_WINDOW_ANDROID_EGL, NULL);
82 gst_object_ref_sink (window);
83
84 return window;
85 }
86
87 static void
gst_gl_window_android_egl_set_window_handle(GstGLWindow * window,guintptr handle)88 gst_gl_window_android_egl_set_window_handle (GstGLWindow * window,
89 guintptr handle)
90 {
91 GstGLWindowAndroidEGL *window_egl = GST_GL_WINDOW_ANDROID_EGL (window);
92
93 window_egl->native_window = (EGLNativeWindowType) handle;
94 }
95
96 static guintptr
gst_gl_window_android_egl_get_window_handle(GstGLWindow * window)97 gst_gl_window_android_egl_get_window_handle (GstGLWindow * window)
98 {
99 GstGLWindowAndroidEGL *window_egl = GST_GL_WINDOW_ANDROID_EGL (window);
100
101 return (guintptr) window_egl->native_window;
102 }
103
104 static void
draw_cb(gpointer data)105 draw_cb (gpointer data)
106 {
107 GstGLWindowAndroidEGL *window_egl = data;
108 GstGLWindow *window = GST_GL_WINDOW (window_egl);
109 GstGLContext *context = gst_gl_window_get_context (window);
110 GstGLContextEGL *context_egl = GST_GL_CONTEXT_EGL (context);
111
112 if (context_egl->egl_surface) {
113 gint width, height;
114 guint window_width, window_height;
115
116 gst_gl_window_get_surface_dimensions (window, &window_width,
117 &window_height);
118 if (eglQuerySurface (context_egl->egl_display, context_egl->egl_surface,
119 EGL_WIDTH, &width)
120 && eglQuerySurface (context_egl->egl_display, context_egl->egl_surface,
121 EGL_HEIGHT, &height)
122 && (window->queue_resize || width != window_egl->window_width
123 || height != window_egl->window_height)) {
124 gst_gl_window_resize (window, width, height);
125 }
126 }
127
128 if (window->draw)
129 window->draw (window->draw_data);
130
131 gst_gl_context_swap_buffers (context);
132
133 gst_object_unref (context);
134 }
135
136 static void
gst_gl_window_android_egl_draw(GstGLWindow * window)137 gst_gl_window_android_egl_draw (GstGLWindow * window)
138 {
139 gst_gl_window_send_message (window, (GstGLWindowCB) draw_cb, window);
140 }
141
142 static guintptr
gst_gl_window_android_egl_get_display(GstGLWindow * window)143 gst_gl_window_android_egl_get_display (GstGLWindow * window)
144 {
145 return 0;
146 }
147