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 #define GST_TYPE_PHYS_MEMORY_ALLOCATOR (gst_phys_memory_allocator_get_type()) 29 GST_ALLOCATORS_API 30 G_DECLARE_INTERFACE (GstPhysMemoryAllocator, gst_phys_memory_allocator, 31 GST, PHYS_MEMORY_ALLOCATOR, GstAllocator) 32 33 #define GST_PHYS_MEMORY_ALLOCATOR_GET_INTERFACE(obj) (GST_PHYS_MEMORY_ALLOCATOR_GET_IFACE(obj)) 34 #define GST_PHYS_MEMORY_ALLOCATOR_CAST(obj) ((GstPhysMemoryAllocator *)(obj)) 35 36 /** 37 * GstPhysMemoryAllocatorInterface: 38 * @get_phys_addr: Implementations shall return the physicall memory address 39 * that is backing the provided memory, or 0 if none. 40 * 41 * Marker interface for allocators with physical address backed memory 42 * 43 * Since: 1.14 44 */ 45 struct _GstPhysMemoryAllocatorInterface 46 { 47 /*< private >*/ 48 GTypeInterface parent_iface; 49 50 /*< public >*/ 51 guintptr (*get_phys_addr) (GstPhysMemoryAllocator * allocator, GstMemory * mem); 52 }; 53 54 GST_ALLOCATORS_API 55 gboolean gst_is_phys_memory (GstMemory *mem); 56 57 GST_ALLOCATORS_API 58 guintptr gst_phys_memory_get_phys_addr (GstMemory * mem); 59 60 G_END_DECLS 61 62 #endif /* __GST_PHYS_MEMORY_H__ */ 63