Commit graph

80 commits

Author SHA1 Message Date
Tim-Philipp Müller
e3cc67a133 memory: fix C++ compiler warnings with GST_MAP_INFO_INIT 2016-04-06 17:46:31 +01:00
Tim-Philipp Müller
9df4bda65d miniobject, memory, uri: warn on unused return value of some funcs
Make compiler issue a warning for common beginner mistakes such as:

  ...
  gst_buffer_make_writable (buf);
  gst_buffer_map (buf, &map, GST_MAP_WRITE);
  ...

and similar. Only do this for some functions for now.
2016-03-26 11:35:39 +00:00
Xavier Claessens
46f83f5fcd core: Add g_autoptr() support to all types
https://bugzilla.gnome.org/show_bug.cgi?id=754464
2015-12-14 12:06:55 -05:00
Tim-Philipp Müller
220dbfc13c docs: remove dummy function declarations with G_INLINE_FUNCTION for gtk-doc
gtk-doc can handle static inline functions just fine these days,
there's no need for this stuff any more.
2015-11-09 17:59:16 +00:00
Thiago Santos
cecd8bdfdc memory: fix typo in documentation
It should be 1.2 unless this is a flag from the future
2015-10-15 20:15:48 -03:00
Mathieu Duponchelle
24e1abe367 Headers: add missing includes. 2015-08-15 13:17:07 +02:00
Stian Selnes
1a67066ddc memory: Add missing field initializers to GstMapInfo
https://bugzilla.gnome.org/show_bug.cgi?id=751881
2015-07-03 11:36:13 +02:00
Nicolas Dufresne
bd9ea8d18f doc: Fix Since: marks
There was few Since: mark missing their column. Also unify the way
we set the Since mark on enum value and structure members. These
sadly don't show up in the index.
2015-06-13 20:19:59 -04:00
Matthew Waters
d61ba38118 memory: provide a mem_map_full that takes the GstMapInfo
Follow up of 7130230ddb

Provide the memory implementation the GstMapInfo that will be used to
map/unmap the memory.  This allows the memory implementation to use
some scratch space in GstMapInfo to e.g. track different map/unmap
behaviour or store extra implementation defined data about the map
in use.

https://bugzilla.gnome.org/show_bug.cgi?id=750319
2015-06-12 16:12:10 +10:00
Matthew Waters
7130230ddb memory: provide a mem_unmap function that takes the flags to unmap
There are gstmemory's available that operate in two memory domains
and need to ensure consistent access between these domains.

Imagine a scenario where e.g. the GLMemory is mapped twice in both
the GPU and the CPU domain.  On unmap or a subsequent map, it would
like to ensure that the most recent data is available in the memory
domain requested.  Either by flushing the writes and/or initiating a
DMA transfer.  Without knowing which domain is being unmapped, the
memory does not know where the most recent data is to transfer to
the other memory domain.

Note: this still does not allow downgrading a memory map.

https://bugzilla.gnome.org/show_bug.cgi?id=750319
2015-06-03 20:41:59 +10:00
Sebastian Dröge
db1e4422b6 gst: Store more basic type GTypes in variables
Micro optimization to change a function call to a variable access
for all our basic types.
2014-06-19 08:06:55 +02:00
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
Sebastian Dröge
a093d8a8cd memory: It's contiguous, not continous 2013-02-23 08:19:48 +01:00
Sebastian Dröge
5327545d56 memory: Add new memory flag to specify that memory can't be mapped 2013-02-22 12:41:09 +01:00
Sebastian Dröge
221b6fc479 memory: Add memory flag to mark physically continous memory 2013-02-22 09:04:57 +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
Mark Nauwelaerts
edb8bc8865 memory: add padding to GstMapInfo 2012-09-10 12:20:15 +02:00
Wim Taymans
021e51e7f4 memory: add _make_writable 2012-08-22 09:53:18 +02:00
Tim-Philipp Müller
dddcc31c42 docs: fix up docs a bit 2012-08-11 23:41:33 +01:00
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
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
24cd0d055d memory: add LOCK_FLAG_READWRITE define 2012-07-05 11:19:16 +02:00
Wim Taymans
61a9de98d9 memory: Use lock flags for map flags
We implement the locking in gst_memory_map with the lock flags, make matching
flags the same number so that we can use the map flags directly as lock flags.
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
Wim Taymans
17022f7ad1 memory: improve docs
Mention that custom allocator functions can pass whatever they want to the
user_data.
2012-06-25 09:33:18 +02:00
Tim-Philipp Müller
b5a064850e memory: annotate GstMapInfo data as array for g-i 2012-06-23 12:39:10 +01:00
Sebastian Dröge
de37675e3a memory: Fix docs typo 2012-06-19 14:31:03 +01:00
Wim Taymans
a1c5b00e72 memory: make GstMemory a miniobject 2012-06-14 16:34:28 +02:00
Wim Taymans
a7793f1fd7 memory: make GstAllocator a miniobject 2012-06-14 16:34:28 +02:00
Wim Taymans
ce67b0e539 docs: update more documentation 2012-03-29 13:34:50 +02:00
Wim Taymans
a7e6c7d2a8 bufferpool: split bufferpool configuration
Make separate methods to control the bufferpool and the allocator used by the
bufferpool.
Make it possible to change the allocator of a pool.
2012-03-15 22:09:02 +01:00
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
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
69d56a2927 memory: add user_data to GstMapInfo
Add extra pointers to GstMapInfo so that implementations can use these to store
extra info.
2012-02-23 15:32:33 +01:00
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
Edward Hervey
f730ab02a4 doc fixups 2012-02-17 15:53:58 -08:00
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
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
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
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
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
Matej Knopp
efdd0a2a82 win32: fix exported variables for VS 2010
https://bugzilla.gnome.org/show_bug.cgi?id=666219
2011-12-27 23:26:07 +00:00