diff --git a/gst-libs/gst/allocators/Makefile.am b/gst-libs/gst/allocators/Makefile.am index a31ef362e8..c792ce29c2 100644 --- a/gst-libs/gst/allocators/Makefile.am +++ b/gst-libs/gst/allocators/Makefile.am @@ -5,12 +5,14 @@ libgstallocators_@GST_API_VERSION@_includedir = $(includedir)/gstreamer-@GST_API libgstallocators_@GST_API_VERSION@_include_HEADERS = \ allocators.h \ gstfdmemory.h \ + gstphysmemory.h \ gstdmabuf.h noinst_HEADERS = libgstallocators_@GST_API_VERSION@_la_SOURCES = \ gstfdmemory.c \ + gstphysmemory.c \ gstdmabuf.c libgstallocators_@GST_API_VERSION@_la_LIBADD = $(GST_LIBS) $(LIBM) diff --git a/gst-libs/gst/allocators/allocators.h b/gst-libs/gst/allocators/allocators.h index 14a4ac83ac..26c60f8cba 100644 --- a/gst-libs/gst/allocators/allocators.h +++ b/gst-libs/gst/allocators/allocators.h @@ -24,6 +24,7 @@ #include #include +#include #endif /* __GST_ALLOCATORS_H__ */ diff --git a/gst-libs/gst/allocators/gstphysmemory.c b/gst-libs/gst/allocators/gstphysmemory.c new file mode 100644 index 0000000000..4e1a898cb3 --- /dev/null +++ b/gst-libs/gst/allocators/gstphysmemory.c @@ -0,0 +1,69 @@ +/* GStreamer + * Copyright (C) 2017 Sebastian Dröge + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#include "gstphysmemory.h" + +G_DEFINE_INTERFACE (GstPhysMemoryAllocator, gst_phys_memory_allocator, + GST_TYPE_ALLOCATOR); + +static void +gst_phys_memory_allocator_default_init (GstPhysMemoryAllocatorInterface * iface) +{ +} + +/** + * gst_is_phys_memory: + * @mem: a #GstMemory + * + * Returns: whether the memory at @mem is backed by physical memory + * + * Since: 1.14 + */ +gboolean +gst_is_phys_memory (GstMemory * mem) +{ + return mem != NULL && mem->allocator != NULL + && g_type_is_a (G_OBJECT_TYPE (mem->allocator), + GST_TYPE_PHYS_MEMORY_ALLOCATOR); +} + +/** + * gst_phys_memory_get_phys_addr: + * @mem: a #GstMemory + * + * Returns: Physical memory address that is backing @mem, or 0 if none + * + * Since: 1.14 + */ +guintptr +gst_phys_memory_get_phys_addr (GstMemory * mem) +{ + GstPhysMemoryAllocatorInterface *iface; + + g_return_val_if_fail (gst_is_phys_memory (mem), 0); + + iface = GST_PHYS_MEMORY_ALLOCATOR_GET_INTERFACE (mem->allocator); + g_return_val_if_fail (iface->get_phys_addr != NULL, 0); + + return iface->get_phys_addr ((GstPhysMemoryAllocator *) mem->allocator, mem); +} diff --git a/gst-libs/gst/allocators/gstphysmemory.h b/gst-libs/gst/allocators/gstphysmemory.h new file mode 100644 index 0000000000..7c70d6871a --- /dev/null +++ b/gst-libs/gst/allocators/gstphysmemory.h @@ -0,0 +1,63 @@ +/* GStreamer + * Copyright (C) 2017 Sebastian Dröge + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#ifndef __GST_PHYS_MEMORY_H__ +#define __GST_PHYS_MEMORY_H__ + +#include + +G_BEGIN_DECLS + +typedef struct _GstPhysMemoryAllocator GstPhysMemoryAllocator; +typedef struct _GstPhysMemoryAllocatorInterface GstPhysMemoryAllocatorInterface; + +#define GST_TYPE_PHYS_MEMORY_ALLOCATOR (gst_phys_memory_allocator_get_type()) +#define GST_IS_PHYS_MEMORY_ALLOCATOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_PHYS_MEMORY_ALLOCATOR)) +#define GST_IS_PHYS_MEMORY_ALLOCATOR_INTERFACE(iface) (G_TYPE_CHECK_INTERFACE_TYPE ((iface), GST_TYPE_PHYS_MEMORY_ALLOCATOR)) +#define GST_PHYS_MEMORY_ALLOCATOR_GET_INTERFACE(obj) (G_TYPE_INSTANCE_GET_INTERFACE ((obj), GST_TYPE_PHYS_MEMORY_ALLOCATOR, GstPhysMemoryAllocatorInterface)) +#define GST_PHYS_MEMORY_ALLOCATOR(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_PHYS_MEMORY_ALLOCATOR, GstPhysMemoryAllocator)) +#define GST_PHYS_MEMORY_ALLOCATOR_INTERFACE(iface) (G_TYPE_CHECK_INTERFACE_CAST ((iface), GST_TYPE_PHYS_MEMORY_ALLOCATOR, GstPhysMemoryAllocatorInterface)) +#define GST_PHYS_MEMORY_ALLOCATOR_CAST(obj) ((GstPhysMemoryAllocator *)(obj)) + +/** + * GstPhysMemoryAllocatorInterface: + * + * Marker interface for allocators with physical address backed memory + * + * Since: 1.14 + */ +struct _GstPhysMemoryAllocatorInterface +{ + GTypeInterface parent_iface; + + guintptr (*get_phys_addr) (GstPhysMemoryAllocator * allocator, GstMemory * mem); +}; + +GST_EXPORT +GType gst_phys_memory_allocator_get_type (void); + +GST_EXPORT +gboolean gst_is_phys_memory (GstMemory *mem); + +GST_EXPORT +guintptr gst_phys_memory_get_phys_addr (GstMemory * mem); + +G_END_DECLS + +#endif /* __GST_PHYS_MEMORY_H__ */