Commit 0a3c6b71 authored by Laurent Aimar's avatar Laurent Aimar

Added picture_pool_Reserve helper.

parent 47c001b3
......@@ -106,5 +106,16 @@ VLC_EXPORT( picture_t *, picture_pool_Get, ( picture_pool_t * ) );
*/
VLC_EXPORT( void, picture_pool_NonEmpty, ( picture_pool_t *, bool reset ) );
/**
* It reserves picture_count pictures from the given pool and returns
* a new pool with thoses pictures.
*
* The master pool must be full.
* The returned pool must be deleted before the master pool.
* When deleted, all pictures return to the master pool.
*/
VLC_EXPORT( picture_pool_t *, picture_pool_Reserve, (picture_pool_t *, int picture_count) );
#endif /* VLC_PICTURE_POOL_H */
......@@ -314,6 +314,7 @@ picture_pool_New
picture_pool_NewExtended
picture_pool_NewFromFormat
picture_pool_NonEmpty
picture_pool_Reserve
picture_Reset
picture_Setup
plane_CopyPixels
......
......@@ -52,29 +52,43 @@ struct picture_release_sys_t {
struct picture_pool_t {
/* */
picture_pool_t *master;
int64_t tick;
/* */
int picture_count;
picture_t **picture;
bool *picture_reserved;
};
static void Release(picture_t *);
static int Lock(picture_t *);
static void Unlock(picture_t *);
picture_pool_t *picture_pool_NewExtended(const picture_pool_configuration_t *cfg)
static picture_pool_t *Create(picture_pool_t *master, int picture_count)
{
picture_pool_t *pool = calloc(1, sizeof(*pool));
if (!pool)
return NULL;
pool->tick = 1;
pool->picture_count = cfg->picture_count;
pool->master = master;
pool->tick = master ? master->tick : 1;
pool->picture_count = picture_count;
pool->picture = calloc(pool->picture_count, sizeof(*pool->picture));
if (!pool->picture) {
pool->picture_reserved = calloc(pool->picture_count, sizeof(*pool->picture_reserved));
if (!pool->picture || !pool->picture_reserved) {
free(pool->picture);
free(pool->picture_reserved);
free(pool);
return NULL;
}
return pool;
}
picture_pool_t *picture_pool_NewExtended(const picture_pool_configuration_t *cfg)
{
picture_pool_t *pool = Create(NULL, cfg->picture_count);
if (!pool)
return NULL;
for (int i = 0; i < cfg->picture_count; i++) {
picture_t *picture = cfg->picture[i];
......@@ -99,6 +113,7 @@ picture_pool_t *picture_pool_NewExtended(const picture_pool_configuration_t *cfg
/* */
pool->picture[i] = picture;
pool->picture_reserved[i] = false;
}
return pool;
......@@ -139,13 +154,45 @@ error:
return NULL;
}
picture_pool_t *picture_pool_Reserve(picture_pool_t *master, int count)
{
picture_pool_t *pool = Create(master, count);
if (!pool)
return NULL;
int found = 0;
for (int i = 0; i < master->picture_count && found < count; i++) {
if (master->picture_reserved[i])
continue;
assert(master->picture[i]->i_refcount == 0);
master->picture_reserved[i] = true;
pool->picture[found] = master->picture[i];
pool->picture_reserved[found] = false;
found++;
}
if (found < count) {
picture_pool_Delete(pool);
return NULL;
}
return pool;
}
void picture_pool_Delete(picture_pool_t *pool)
{
for (int i = 0; i < pool->picture_count; i++) {
picture_t *picture = pool->picture[i];
if (pool->master) {
for (int j = 0; j < pool->master->picture_count; j++) {
if (pool->master->picture[j] == picture)
pool->master->picture_reserved[j] = false;
}
} else {
picture_release_sys_t *release_sys = picture->p_release_sys;
assert(picture->i_refcount == 0);
assert(!pool->picture_reserved[i]);
/* Restore old release callback */
picture->i_refcount = 1;
......@@ -156,6 +203,8 @@ void picture_pool_Delete(picture_pool_t *pool)
free(release_sys);
}
}
free(pool->picture_reserved);
free(pool->picture);
free(pool);
}
......@@ -163,6 +212,9 @@ void picture_pool_Delete(picture_pool_t *pool)
picture_t *picture_pool_Get(picture_pool_t *pool)
{
for (int i = 0; i < pool->picture_count; i++) {
if (pool->picture_reserved[i])
continue;
picture_t *picture = pool->picture[i];
if (picture->i_refcount > 0)
continue;
......@@ -183,8 +235,10 @@ void picture_pool_NonEmpty(picture_pool_t *pool, bool reset)
picture_t *old = NULL;
for (int i = 0; i < pool->picture_count; i++) {
picture_t *picture = pool->picture[i];
if (pool->picture_reserved[i])
continue;
picture_t *picture = pool->picture[i];
if (reset) {
if (picture->i_refcount > 0)
Unlock(picture);
......
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