Sweden-Number/dlls/mf/mf_private.h

58 lines
1.8 KiB
C

/*
* Copyright 2019 Nikolay Sivov for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "mfidl.h"
#include "wine/heap.h"
static inline BOOL mf_array_reserve(void **elements, size_t *capacity, size_t count, size_t size)
{
size_t new_capacity, max_capacity;
void *new_elements;
if (count <= *capacity)
return TRUE;
max_capacity = ~(SIZE_T)0 / size;
if (count > max_capacity)
return FALSE;
new_capacity = max(4, *capacity);
while (new_capacity < count && new_capacity <= max_capacity / 2)
new_capacity *= 2;
if (new_capacity < count)
new_capacity = max_capacity;
if (!(new_elements = heap_realloc(*elements, new_capacity * size)))
return FALSE;
*elements = new_elements;
*capacity = new_capacity;
return TRUE;
}
struct activate_funcs
{
HRESULT (*create_object)(IMFAttributes *attributes, void *context, IUnknown **object);
void (*shutdown_object)(void *context, IUnknown *object);
void (*free_private)(void *context);
};
HRESULT create_activation_object(void *context, const struct activate_funcs *funcs, IMFActivate **ret) DECLSPEC_HIDDEN;