github/mpv
1
Fork 0
mirror of https://github.com/mpv-player/mpv synced 2024-10-30 04:46:41 +01:00
Code Releases Activity
6aa2d1f120
mpv/video/mp_image_pool.h

17 lines
580 B
C
Raw Normal View History

mp_image_pool: add pool to avoid frequent image reallocations Refcounting will conceptually allocate and free images all the time when using the filter chain. Add a pool that makes these reallocations cheap. This only affects the image data, not mp_image structs and similar small allocations. Small allocations are always fast with reasonable memory managers, while large image data will trigger mmap/munmap calls each time.
2012-12-12 23:55:34 +01:00
#ifndef MPV_MP_IMAGE_POOL_H
#define MPV_MP_IMAGE_POOL_H
mp_image_pool: make reference counting thread-safe See previous commits. Also simplify this thing: 2 flags per pool image are enough to avoid a weird central refcount and an associated shared object keeping the refcount. We could even just store these two flags in the mp_image itself (like in mp_image.flags or mp_image.priv), but let's not for the sake of readability.
2013-07-28 00:10:58 +02:00
struct mp_image_pool;
mp_image_pool: add pool to avoid frequent image reallocations Refcounting will conceptually allocate and free images all the time when using the filter chain. Add a pool that makes these reallocations cheap. This only affects the image data, not mp_image structs and similar small allocations. Small allocations are always fast with reasonable memory managers, while large image data will trigger mmap/munmap calls each time.
2012-12-12 23:55:34 +01:00
struct mp_image_pool *mp_image_pool_new(int max_count);
struct mp_image *mp_image_pool_get(struct mp_image_pool *pool, unsigned int fmt,
int w, int h);
void mp_image_pool_clear(struct mp_image_pool *pool);
struct mp_image *mp_image_pool_new_copy(struct mp_image_pool *pool,
struct mp_image *img);
void mp_image_pool_make_writeable(struct mp_image_pool *pool,
struct mp_image *img);
#endif
Copy Permalink