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 _VK_DEVICE_H_
22 #define _VK_DEVICE_H_
23 
24 #include <gst/gst.h>
25 #include "vk.h"
26 
27 G_BEGIN_DECLS
28 
29 #define GST_TYPE_VULKAN_DEVICE         (gst_vulkan_device_get_type())
30 #define GST_VULKAN_DEVICE(o)           (G_TYPE_CHECK_INSTANCE_CAST((o), GST_TYPE_VULKAN_DEVICE, GstVulkanDevice))
31 #define GST_VULKAN_DEVICE_CLASS(k)     (G_TYPE_CHECK_CLASS_CAST((k), GST_TYPE_VULKAN_DEVICE, GstVulkanDeviceClass))
32 #define GST_IS_VULKAN_DEVICE(o)        (G_TYPE_CHECK_INSTANCE_TYPE((o), GST_TYPE_VULKAN_DEVICE))
33 #define GST_IS_VULKAN_DEVICE_CLASS(k)  (G_TYPE_CHECK_CLASS_TYPE((k), GST_TYPE_VULKAN_DEVICE))
34 #define GST_VULKAN_DEVICE_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS((o), GST_TYPE_VULKAN_DEVICE, GstVulkanDeviceClass))
35 GType gst_vulkan_device_get_type       (void);
36 
37 #define GST_VULKAN_DEVICE_CONTEXT_TYPE_STR "gst.vulkan.device"
38 
39 typedef gboolean (*GstVulkanDeviceForEachQueueFunc) (GstVulkanDevice * device, GstVulkanQueue * queue, gpointer user_data);
40 
41 struct _GstVulkanDevice
42 {
43   GstObject parent;
44 
45   GstVulkanInstance *instance;
46 
47   guint device_index;
48   VkDevice device; /* hides a pointer */
49   VkPhysicalDeviceProperties gpu_props;
50   VkPhysicalDeviceFeatures gpu_features;
51   VkPhysicalDeviceMemoryProperties memory_properties;
52 
53   VkQueueFamilyProperties *queue_family_props;
54   guint32 n_queue_families;
55 
56   guint32 queue_family_id;
57   guint32 n_queues;
58 
59   VkCommandPool cmd_pool;
60 
61   GstVulkanDevicePrivate *priv;
62 };
63 
64 struct _GstVulkanDeviceClass
65 {
66   GstObjectClass parent_class;
67 };
68 
69 GstVulkanDevice *   gst_vulkan_device_new                   (GstVulkanInstance * instance);
70 GstVulkanInstance * gst_vulkan_device_get_instance           (GstVulkanDevice * device);
71 gboolean            gst_vulkan_device_open                  (GstVulkanDevice * device,
72                                                              GError ** error);
73 
74 gpointer            gst_vulkan_device_get_proc_address      (GstVulkanDevice * device,
75                                                              const gchar * name);
76 void                gst_vulkan_device_foreach_queue         (GstVulkanDevice * device,
77                                                              GstVulkanDeviceForEachQueueFunc func,
78                                                              gpointer user_data);
79 GstVulkanQueue *    gst_vulkan_device_get_queue             (GstVulkanDevice * device,
80                                                              guint32 queue_family,
81                                                              guint32 queue_i);
82 VkPhysicalDevice    gst_vulkan_device_get_physical_device   (GstVulkanDevice * device);
83 gboolean            gst_vulkan_device_create_cmd_buffer     (GstVulkanDevice * device,
84                                                              VkCommandBuffer * cmd,
85                                                              GError ** error);
86 
87 void                gst_context_set_vulkan_device           (GstContext * context,
88                                                              GstVulkanDevice * device);
89 gboolean            gst_context_get_vulkan_device           (GstContext * context,
90                                                              GstVulkanDevice ** device);
91 gboolean            gst_vulkan_device_handle_context_query  (GstElement * element,
92                                                              GstQuery * query,
93                                                              GstVulkanDevice ** device);
94 gboolean            gst_vulkan_device_run_context_query     (GstElement * element,
95                                                              GstVulkanDevice ** device);
96 
97 G_END_DECLS
98 
99 #endif /* _VK_DEVICE_H_ */
100