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1 /*
2  * GStreamer
3  * Copyright (C) 2015 Matthew Waters <matthew@centricular.com>
4  *
5  * This library is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU Library General Public
7  * License as published by the Free Software Foundation; either
8  * version 2 of the License, or (at your option) any later version.
9  *
10  * This library is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13  * Library General Public License for more details.
14  *
15  * You should have received a copy of the GNU Library General Public
16  * License along with this library; if not, write to the
17  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
18  * Boston, MA 02110-1301, USA.
19  */
20 
21 #ifndef __GST_VULKAN_DISPLAY_H__
22 #define __GST_VULKAN_DISPLAY_H__
23 
24 #include <gst/gst.h>
25 
26 #include <gst/vulkan/gstvkwindow.h>
27 #include <gst/vulkan/gstvkinstance.h>
28 
29 G_BEGIN_DECLS
30 
31 #define GST_TYPE_VULKAN_DISPLAY             (gst_vulkan_display_get_type())
32 #define GST_VULKAN_DISPLAY(obj)             (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VULKAN_DISPLAY,GstVulkanDisplay))
33 #define GST_VULKAN_DISPLAY_CLASS(klass)     (G_TYPE_CHECK_CLASS_CAST((klass), GST_TYPE_VULKAN_DISPLAY,GstVulkanDisplayClass))
34 #define GST_IS_VULKAN_DISPLAY(obj)          (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VULKAN_DISPLAY))
35 #define GST_IS_VULKAN_DISPLAY_CLASS(klass)  (G_TYPE_CHECK_CLASS_TYPE((klass), GST_TYPE_VULKAN_DISPLAY))
36 #define GST_VULKAN_DISPLAY_GET_CLASS(o)     (G_TYPE_INSTANCE_GET_CLASS((o), GST_TYPE_VULKAN_DISPLAY, GstVulkanDisplayClass))
37 GST_VULKAN_API
38 GType gst_vulkan_display_get_type (void);
39 /**
40  * GST_VULKAN_DISPLAY_CAST
41  *
42  * Since: 1.18
43  */
44 #define GST_VULKAN_DISPLAY_CAST(obj)        ((GstVulkanDisplay*)(obj))
45 
46 /**
47  * GST_VULKAN_DISPLAY_CONTEXT_TYPE_STR
48  *
49  * Since: 1.18
50  */
51 #define GST_VULKAN_DISPLAY_CONTEXT_TYPE_STR "gst.vulkan.display"
52 
53 typedef struct _GstVulkanDisplay GstVulkanDisplay;
54 typedef struct _GstVulkanDisplayClass GstVulkanDisplayClass;
55 typedef struct _GstVulkanDisplayPrivate GstVulkanDisplayPrivate;
56 
57 /**
58  * GstVulkanDisplayType:
59  * @GST_VULKAN_DISPLAY_TYPE_NONE: no display
60  * @GST_VULKAN_DISPLAY_TYPE_XCB: XCB display
61  * @GST_VULKAN_DISPLAY_TYPE_WAYLAND: wayland display
62  * @GST_VULKAN_DISPLAY_TYPE_COCOA: cocoa display for macOS
63  * @GST_VULKAN_DISPLAY_TYPE_IOS: ios display
64  * @GST_VULKAN_DISPLAY_TYPE_WIN32: win32 display
65  * @GST_VULKAN_DISPLAY_TYPE_ANY: any display type
66  *
67  * Since: 1.18
68  */
69 typedef enum
70 {
71   GST_VULKAN_DISPLAY_TYPE_NONE = 0,
72   GST_VULKAN_DISPLAY_TYPE_XCB = (1 << 0),
73   GST_VULKAN_DISPLAY_TYPE_WAYLAND = (1 << 1),
74   GST_VULKAN_DISPLAY_TYPE_COCOA = (1 << 2),
75   GST_VULKAN_DISPLAY_TYPE_IOS = (1 << 3),
76   GST_VULKAN_DISPLAY_TYPE_WIN32 = (1 << 4),
77   GST_VULKAN_DISPLAY_TYPE_ANDROID = (1 << 5),
78 
79   GST_VULKAN_DISPLAY_TYPE_ANY = G_MAXUINT32
80 } GstVulkanDisplayType;
81 
82 /**
83  * GstVulkanDisplay:
84  *
85  * The contents of a #GstVulkanDisplay are private and should only be accessed
86  * through the provided API
87  *
88  * Since: 1.18
89  */
90 struct _GstVulkanDisplay
91 {
92   /* <private> */
93   GstObject                 object;
94 
95   GstVulkanDisplayType      type;
96 
97   GstVulkanInstance        *instance;
98 
99   /* <protected> */
100   GList                    *windows;        /* OBJECT lock */
101   GMainContext             *main_context;
102   GMainLoop                *main_loop;
103   GSource                  *event_source;
104 
105   /* <private> */
106   gpointer _reserved        [GST_PADDING];
107 };
108 
109 /**
110  * GstVulkanDisplayClass:
111  * @object_class: parent #GstObjectClass
112  * @get_handle: get the native handle to the display
113  * @create_window: create a window
114  *
115  * Since: 1.18
116  */
117 struct _GstVulkanDisplayClass
118 {
119   GstObjectClass object_class;
120 
121   gpointer          (*get_handle)           (GstVulkanDisplay * display);
122   GstVulkanWindow * (*create_window)        (GstVulkanDisplay * display);
123 
124   /* <private> */
125   gpointer _reserved        [GST_PADDING];
126 };
127 
128 G_DEFINE_AUTOPTR_CLEANUP_FUNC (GstVulkanDisplay, gst_object_unref)
129 
130 GST_VULKAN_API
131 GstVulkanDisplay *      gst_vulkan_display_new                      (GstVulkanInstance *instance);
132 GST_VULKAN_API
133 GstVulkanDisplay *      gst_vulkan_display_new_with_type            (GstVulkanInstance *instance,
134                                                                      GstVulkanDisplayType type);
135 GST_VULKAN_API
136 GstVulkanDisplayType    gst_vulkan_display_choose_type              (GstVulkanInstance *instance);
137 GST_VULKAN_API
138 const gchar *           gst_vulkan_display_type_to_extension_string (GstVulkanDisplayType type);
139 
140 
141 GST_VULKAN_API
142 gpointer                gst_vulkan_display_get_handle               (GstVulkanDisplay * display);
143 GST_VULKAN_API
144 GstVulkanDisplayType    gst_vulkan_display_get_handle_type          (GstVulkanDisplay * display);
145 GST_VULKAN_API
146 GstVulkanWindow *       gst_vulkan_display_create_window            (GstVulkanDisplay * display);
147 
148 GST_VULKAN_API
149 gboolean                gst_context_get_vulkan_display              (GstContext * context,
150                                                                      GstVulkanDisplay ** display);
151 GST_VULKAN_API
152 void                    gst_context_set_vulkan_display              (GstContext * context,
153                                                                      GstVulkanDisplay * display);
154 GST_VULKAN_API
155 gboolean                gst_vulkan_display_handle_context_query     (GstElement * element,
156                                                                      GstQuery * query,
157                                                                      GstVulkanDisplay * display);
158 GST_VULKAN_API
159 gboolean                gst_vulkan_display_run_context_query        (GstElement * element,
160                                                                      GstVulkanDisplay ** display);
161 
162 /* GstVulkanWindow usage only */
163 GST_VULKAN_API
164 gboolean                gst_vulkan_display_remove_window            (GstVulkanDisplay * display, GstVulkanWindow * window);
165 GST_VULKAN_API
166 GstVulkanWindow *       gst_vulkan_display_find_window              (GstVulkanDisplay * display, gpointer data, GCompareFunc compare_func);
167 
168 G_END_DECLS
169 
170 #endif /* __GST_VULKAN_DISPLAY_H__ */
171