1 /* GStreamer 2 * Copyright (C) 2017 Sebastian Dröge <sebastian@centricular.com> 3 * 4 * This library is free software; you can redistribute it and/or 5 * modify it under the terms of the GNU Library General Public 6 * License as published by the Free Software Foundation; either 7 * version 2 of the License, or (at your option) any later version. 8 * 9 * This library is distributed in the hope that it will be useful, 10 * but WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 12 * Library General Public License for more details. 13 * 14 * You should have received a copy of the GNU Library General Public 15 * License along with this library; if not, write to the 16 * Free Software Foundation, Inc., 59 Temple Place - Suite 330, 17 * Boston, MA 02111-1307, USA. 18 */ 19 20 #ifndef __GST_PHYS_MEMORY_H__ 21 #define __GST_PHYS_MEMORY_H__ 22 23 #include <gst/gst.h> 24 #include <gst/allocators/allocators-prelude.h> 25 26 G_BEGIN_DECLS 27 28 typedef struct _GstPhysMemoryAllocator GstPhysMemoryAllocator; 29 typedef struct _GstPhysMemoryAllocatorInterface GstPhysMemoryAllocatorInterface; 30 31 #define GST_TYPE_PHYS_MEMORY_ALLOCATOR (gst_phys_memory_allocator_get_type()) 32 #define GST_IS_PHYS_MEMORY_ALLOCATOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_PHYS_MEMORY_ALLOCATOR)) 33 #define GST_IS_PHYS_MEMORY_ALLOCATOR_INTERFACE(iface) (G_TYPE_CHECK_INTERFACE_TYPE ((iface), GST_TYPE_PHYS_MEMORY_ALLOCATOR)) 34 #define GST_PHYS_MEMORY_ALLOCATOR_GET_INTERFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), GST_TYPE_PHYS_MEMORY_ALLOCATOR, GstPhysMemoryAllocatorInterface)) 35 #define GST_PHYS_MEMORY_ALLOCATOR(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_PHYS_MEMORY_ALLOCATOR, GstPhysMemoryAllocator)) 36 #define GST_PHYS_MEMORY_ALLOCATOR_INTERFACE(iface) (G_TYPE_CHECK_INTERFACE_CAST ((iface), GST_TYPE_PHYS_MEMORY_ALLOCATOR, GstPhysMemoryAllocatorInterface)) 37 #define GST_PHYS_MEMORY_ALLOCATOR_CAST(obj) ((GstPhysMemoryAllocator *)(obj)) 38 39 /** 40 * GstPhysMemoryAllocatorInterface: 41 * @get_phys_addr: Implementations shall return the physicall memory address 42 * that is backing the provided memory, or 0 if none. 43 * 44 * Marker interface for allocators with physical address backed memory 45 * 46 * Since: 1.14 47 */ 48 struct _GstPhysMemoryAllocatorInterface 49 { 50 /*< private >*/ 51 GTypeInterface parent_iface; 52 53 /*< public >*/ 54 guintptr (*get_phys_addr) (GstPhysMemoryAllocator * allocator, GstMemory * mem); 55 }; 56 57 GST_ALLOCATORS_API 58 GType gst_phys_memory_allocator_get_type (void); 59 60 GST_ALLOCATORS_API 61 gboolean gst_is_phys_memory (GstMemory *mem); 62 63 GST_ALLOCATORS_API 64 guintptr gst_phys_memory_get_phys_addr (GstMemory * mem); 65 66 G_END_DECLS 67 68 #endif /* __GST_PHYS_MEMORY_H__ */ 69