Commit graph

90 commits

Author SHA1 Message Date
Wim Taymans
4df4fd33b1 memory: add method to check memory type
Add a method to check if a memory was allocated from an allocator of
a given type.

API: gst_memory_is_type()
2013-02-26 15:37:24 +01:00
Wim Taymans
f37fc1d299 memory: don't unref allocator too soon
Unref the allocator *after* we have freed the memory. We also need to keep
a ref to the allocator around because following the now freed memory would
lead to crashes.
2013-02-26 14:40:38 +01:00
Sebastian Dröge
d50190ba55 memory: Keep a reference to the allocator
Otherwise the allocator might get freed while it's still used
by the memory
2013-02-24 09:46:01 +01:00
Tim-Philipp Müller
666c8c11c6 Fix FSF address
https://bugzilla.gnome.org/show_bug.cgi?id=687520
2012-11-03 20:44:48 +00:00
Wim Taymans
f362f643ac memory: Make GstAllocator a GstObject
Make GstAllocator a GstObject instead of a GstMiniObject, like bufferpool.
Make a new gstallocator.c file. Make a GstAllocator subclass for the default
allocator.
2012-07-09 16:28:22 +02:00
Wim Taymans
6e7c469b48 memory: remove unused macros 2012-07-09 16:28:22 +02:00
Wim Taymans
408df31a48 memory: expose the GstAllocation structure
Expose the GstAllocation structure and provide an _init function. This makes it
easier to make 'subclasses' of the allocator that contain more info.
It also allows us to expose the flags on the allocator miniobject.
Make a flag to note that the allocator uses a custom alloc function.
2012-07-06 17:24:32 +02:00
Wim Taymans
50cf7f6a08 memory: add gst_memory_init()
Add a method that memory implementations can call to initialize the standard
GstMemory structure.
Move the parent handling in the _free handler.
Rearrange some internal function parameters so that the order is consistent.
Add more memory examples
2012-07-05 17:11:01 +02:00
Wim Taymans
3b16efa1d1 miniobject: add lock functionality to GstMiniObject
Move the locking methods from GstMemory to GstMiniObject.
Add a miniobject flag to enable LOCKABLE objects. LOCKABLE objects can
use the lock/unlock API to control the access to the object.
Add a minobject flag that allows you to lock an object in readonly mode.
Modify the _is_writable() method to check the shared counter for LOCKABLE
objects. This allows us to control writability separately from the refcount for
LOCKABLE objects.
2012-07-05 11:19:16 +02:00
Wim Taymans
4b322e37f8 memory: fix is_exclusive 2012-07-05 11:19:16 +02:00
Wim Taymans
1b52aca7ea memory: small cleanup 2012-07-05 11:19:16 +02:00
Wim Taymans
9a20741b0a memory: Fix the NO_SHARE flag in the constructor
The NO_SHARE flag does not influence the exclusiveness of the buffer initially
but only if a _share operation can be done. Otherwise, we would not be able to
WRITE map a buffer memory because it would have a share count of at least 2.
2012-07-05 11:19:16 +02:00
Wim Taymans
4a0dd59808 memory: only check the locking refcount 2012-07-05 11:19:16 +02:00
Wim Taymans
70c1513eac memory: cleanup the locking code
cleanup and fix the locking code
2012-07-05 11:19:15 +02:00
Wim Taymans
93f279cd5a memory: expose the internal locking api
Expose the internally used methods for locking and unlocking the object. Pass
the access mode to the unlock function for extra checks and because we need it
for the EXCLUSIVE locks.
Make some new defines to specify the desired locking.
Add a new EXCLUSIVE lock mode which will increment the shared counter. Objects
with a shared counter > 1 will not be lockable in WRITE mode.
2012-07-05 11:19:15 +02:00
Tim-Philipp Müller
1be934f0dd miniobjects: pass copy, dispose and free function to gst_mini_object_init()
So mini objects don't have to poke into the GstMiniObject part
of the structure. Saves lines of code, and seems slightly cleaner.
We don't have proper OO hierarchies or methods here after all.
2012-06-23 20:02:02 +01:00
Tim-Philipp Müller
34895ae332 alllocator: no need to store structure size inside the structure 2012-06-15 10:27:18 +01:00
Wim Taymans
12aefaa078 miniobject: remove the size field
The size field is used by subclasses to store the total allocated size of the
memory for this miniobject. Because miniobject doesn't really do anything with
this field we can move it to the subclasses.
2012-06-14 17:11:11 +02:00
Wim Taymans
a1c5b00e72 memory: make GstMemory a miniobject 2012-06-14 16:34:28 +02:00
Wim Taymans
db204ea24a memory: fix copy function
Make the copy function map to ref because we can't safely copy the user_data.
2012-06-14 16:34:28 +02:00
Wim Taymans
a7793f1fd7 memory: make GstAllocator a miniobject 2012-06-14 16:34:28 +02:00
Sreerenj Balachandran
86e0f4d145 memory: add missing parameter to default_mem_map()
Fixes function signature for correctness.

https://bugzilla.gnome.org/show_bug.cgi?id=675289
2012-05-04 09:22:51 +01:00
Wim Taymans
ffed76f258 memory: add size to debug log 2012-04-16 10:32:17 +02:00
Wim Taymans
ce67b0e539 docs: update more documentation 2012-03-29 13:34:50 +02:00
Wim Taymans
85c9543841 memory: group allocation parameters in a struct
Group the extra allocation parameters in a GstAllocationParams structure to make
it easier to deal with them and so that we can extend them later if needed.
Make gst_buffer_new_allocate() take the GstAllocationParams for added
functionality.
Add boxed type for GstAllocationParams.
2012-03-15 13:42:17 +01:00
Wim Taymans
592b5bec39 memory: fix maxsize after align
when we align the data pointer, make sure to update the maxsize.
Add some more debug
2012-03-15 13:42:17 +01:00
Wim Taymans
edd2ffe4d4 memory: Add 0 padding
Change gst_allocator_alloc() so that we can also spicify flags and padding.
Add 2 new flags to mark the memory 0 prefixed/padded. This allows us to
remove some resizes in the base classes.
When allocating memory, memset prefix and padding with 0 when the flags tell
us to.
On resize, clear the zero padding flags if we can't guarantee the memory is
still 0 filled.
Update tests.
2012-03-14 21:32:22 +01:00
Wim Taymans
185b3c6a0d memory: add comment 2012-03-08 10:34:41 +01:00
David Schleef
bc186f85ed spelling fix 2012-02-23 08:48:40 -08:00
Wim Taymans
7b0e4f27fb memory: make _new_wrapped take user_data and notify
Make it possible to configure a GDestroyNotify and user_data for
gst_memory_new_wrapped() this allows for more flexible wrapping of foreign
memory blocks.
2012-02-22 02:10:21 +01:00
Wim Taymans
d09073b755 memory: fix more docs 2012-02-18 01:04:18 +01:00
Wim Taymans
c6a1bed1ad memory: more work on refcount and writability
Rename _is_writable() with _is_exclusive because the writability does not depend
on the amount of references to the memory object anymore.
Add accessor macros for the memory flags.
Rename the GstBuffer _peek_memory() method to _get_memory() and return a
reference to the memory now that we can do this without affecting writability
of the memory object. Make it possible to also make this function merge the
buffer memory.
Add methods to replace memory in a buffer. Make some convience macros for the
buffer memory functions.
Fix unit tests.
2012-02-13 18:04:03 +01:00
Wim Taymans
18ddee3b45 memory: add debug and trace for GstMemory 2012-02-02 15:57:48 +01:00
Wim Taymans
d8c12ceb2b memory: add some performce debug info
Add some PERFORMANCE debug lines where we copy and do other suboptimal things.
2012-02-02 12:07:28 +01:00
Wim Taymans
16d9a9efbe memory: add memory type
Add memory type when registering memory allocators. Add getter for the memory
type.
2012-01-30 16:13:31 +01:00
Wim Taymans
f8c6cd196e memory: add boxed GType for the allocator 2012-01-30 13:28:34 +01:00
Wim Taymans
af2fc026fc memory: make the allocator refcounted
Add refcounting to the GstAllocator object.
Remove const from functions because the allocator is refcounted now.
Rename the vmethods for consistency
Expose the constructor for GstAllocator and add a destroy notify for the
user_data. This should make it possible to create allocators that are not
registered and shared globally along with the possibility to destroy them
properly.
Update defs with new symbols.
2012-01-30 13:20:36 +01:00
Wim Taymans
2ed36d91a6 memory: avoid memory leak
Unref the old memory in make_mapped.
Add some debug info
2012-01-27 11:41:33 +01:00
Andoni Morales Alastruey
ade5b3b917 gstmemory: add missing parameter 2012-01-26 15:17:04 +01:00
Wim Taymans
9c9848e952 memory: add flags to the mapinfo 2012-01-25 11:54:23 +01:00
Wim Taymans
203dd6fbe1 memory: make guint8 * for easy usage 2012-01-25 11:54:23 +01:00
Wim Taymans
93074b899c memory: add method to create mapped memory
Add a method to create a GstMemory with the desired mapping. Makes a copy of the
memory if it is currently in use.
2012-01-25 11:54:23 +01:00
Wim Taymans
a521252845 Add new GstMapInfo
Use a structure to hold info about the mapping. The application then keeps track
of this state and we can use it to unmap the memory again later.
2012-01-25 11:54:23 +01:00
Wim Taymans
a1d7bd02e4 memory improvements
Make the memory object simply manage the data pointer and the maxsize and move
the offset and size handling to common functionality.
Use the READONLY flag to set a readonly lock.
Remove the data and size fields from the unmap method. We need an explicit
resize operation instead of using the unmap function.
Make internal helper lock and unlock functions.
Update unit test and users of the old API.
2012-01-19 12:51:41 +01:00
Wim Taymans
252327f87a Update for new gthread API 2012-01-19 09:27:04 +01:00
Tim-Philipp Müller
10d901291e gst: suppress some more deprecated thread api until we fix it up
Which should be soon, since we already depend on an unstable glib for -base.
2012-01-18 01:31:56 +00:00
Wim Taymans
c96d5a330c memory: make writability check into a method
Use a method to check for writability instead of a macro so that we can change
the implementation more easily.
2012-01-16 15:57:35 +01:00
Matej Knopp
9092fb87f0 Fix printf format build warnings 2012-01-09 13:15:34 +00:00
Wim Taymans
80f4716a61 memory: check semantics of nested mappings
Count how many mappings are currently active and also with what access pattern.
Update the design doc with restrictions on the access patterns for nested
mappings.
Check if nested mappings obey the access mode restrictions of the design doc.
Add various unit tests to check the desired behaviour.
2012-01-06 13:10:18 +01:00
Wim Taymans
220b324d24 docs: improve memory docs 2012-01-06 10:39:46 +01:00