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memory: add memory type

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Add memory type when registering memory allocators. Add getter for the memory
type.
This commit is contained in:
Wim Taymans 2012-01-30 15:57:39 +01:00
parent dad60ef5c6
commit 16d9a9efbe
2 changed files with 43 additions and 22 deletions
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17
gst/gstmemory.c
View file

@ -320,6 +320,7 @@ void
_priv_gst_memory_initialize (void)
{
static const GstMemoryInfo _mem_info = {
GST_ALLOCATOR_SYSMEM,
(GstAllocatorAllocFunction) _default_alloc_alloc,
(GstMemoryMapFunction) _default_mem_map,
(GstMemoryUnmapFunction) _default_mem_unmap,
@ -779,6 +780,22 @@ gst_allocator_new (const GstMemoryInfo * info, gpointer user_data,
return allocator;
}
/**
* gst_alocator_get_memory_type:
* @allocator: a #GstAllocator
*
* Get the memory type allocated by this allocator
*
* Returns: @allocator with increased refcount
*/
const gchar *
gst_allocator_get_memory_type (GstAllocator * allocator)
{
g_return_val_if_fail (allocator != NULL, NULL);
return allocator->info.mem_type;
}
/**
* gst_alocator_ref:
* @allocator: a #GstAllocator

48
gst/gstmemory.h
View file

@ -232,6 +232,7 @@ typedef gboolean (*GstMemoryIsSpanFunction) (GstMemory *mem1, GstMemory *m
/**
* GstMemoryInfo:
* @type: the memory type this allocator provides
* @alloc: the implementation of the GstAllocatorAllocFunction
* @mem_map: the implementation of the GstMemoryMapFunction
* @mem_unmap: the implementation of the GstMemoryUnmapFunction
@ -244,6 +245,8 @@ typedef gboolean (*GstMemoryIsSpanFunction) (GstMemory *mem1, GstMemory *m
* the implementations for various memory operations.
*/
struct _GstMemoryInfo {
const gchar *mem_type;
GstAllocatorAllocFunction alloc;
GstMemoryMapFunction mem_map;
@ -259,45 +262,46 @@ struct _GstMemoryInfo {
};
/* allocators */
GstAllocator * gst_allocator_new (const GstMemoryInfo * info,
gpointer user_data, GDestroyNotify notify);
GstAllocator * gst_allocator_new (const GstMemoryInfo * info,
gpointer user_data, GDestroyNotify notify);
const gchar * gst_allocator_get_memory_type (GstAllocator * allocator);
GstAllocator * gst_allocator_ref (GstAllocator * allocator);
void gst_allocator_unref (GstAllocator * allocator);
GstAllocator * gst_allocator_ref (GstAllocator * allocator);
void gst_allocator_unref (GstAllocator * allocator);
void gst_allocator_register (const gchar *name, GstAllocator *alloc);
GstAllocator * gst_allocator_find (const gchar *name);
void gst_allocator_register (const gchar *name, GstAllocator *alloc);
GstAllocator * gst_allocator_find (const gchar *name);
void gst_allocator_set_default (GstAllocator * allocator);
void gst_allocator_set_default (GstAllocator * allocator);
/* allocating memory blocks */
GstMemory * gst_allocator_alloc (GstAllocator * allocator,
gsize maxsize, gsize align);
GstMemory * gst_allocator_alloc (GstAllocator * allocator,
gsize maxsize, gsize align);
GstMemory * gst_memory_new_wrapped (GstMemoryFlags flags, gpointer data, GFreeFunc free_func,
gsize maxsize, gsize offset, gsize size);
GstMemory * gst_memory_new_wrapped (GstMemoryFlags flags, gpointer data, GFreeFunc free_func,
gsize maxsize, gsize offset, gsize size);
/* refcounting */
GstMemory * gst_memory_ref (GstMemory *mem);
void gst_memory_unref (GstMemory *mem);
GstMemory * gst_memory_ref (GstMemory *mem);
void gst_memory_unref (GstMemory *mem);
/* getting/setting memory properties */
gsize gst_memory_get_sizes (GstMemory *mem, gsize *offset, gsize *maxsize);
void gst_memory_resize (GstMemory *mem, gssize offset, gsize size);
gsize gst_memory_get_sizes (GstMemory *mem, gsize *offset, gsize *maxsize);
void gst_memory_resize (GstMemory *mem, gssize offset, gsize size);
/* retrieving data */
gboolean gst_memory_is_writable (GstMemory *mem);
gboolean gst_memory_is_writable (GstMemory *mem);
GstMemory * gst_memory_make_mapped (GstMemory *mem, GstMapInfo *info, GstMapFlags flags);
gboolean gst_memory_map (GstMemory *mem, GstMapInfo *info, GstMapFlags flags);
void gst_memory_unmap (GstMemory *mem, GstMapInfo *info);
GstMemory * gst_memory_make_mapped (GstMemory *mem, GstMapInfo *info, GstMapFlags flags);
gboolean gst_memory_map (GstMemory *mem, GstMapInfo *info, GstMapFlags flags);
void gst_memory_unmap (GstMemory *mem, GstMapInfo *info);
/* copy and subregions */
GstMemory * gst_memory_copy (GstMemory *mem, gssize offset, gssize size);
GstMemory * gst_memory_share (GstMemory *mem, gssize offset, gssize size);
GstMemory * gst_memory_copy (GstMemory *mem, gssize offset, gssize size);
GstMemory * gst_memory_share (GstMemory *mem, gssize offset, gssize size);
/* span memory */
gboolean gst_memory_is_span (GstMemory *mem1, GstMemory *mem2, gsize *offset);
gboolean gst_memory_is_span (GstMemory *mem1, GstMemory *mem2, gsize *offset);
G_END_DECLS