dlls/mf/mf_private.h

   1 /*
   2  * Copyright 2019 Nikolay Sivov for CodeWeavers
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #include "mferror.h"
  20 #include "mfidl.h"
  21 #include "mfapi.h"
  22
  23 #include "wine/debug.h"
  24
  25 static inline BOOL mf_array_reserve(void **elements, size_t *capacity, size_t count, size_t size)
  26 {
  27     size_t new_capacity, max_capacity;
  28     void *new_elements;
  29
  30     if (count <= *capacity)
  31         return TRUE;
  32
  33     max_capacity = ~(SIZE_T)0 / size;
  34     if (count > max_capacity)
  35         return FALSE;
  36
  37     new_capacity = max(4, *capacity);
  38     while (new_capacity < count && new_capacity <= max_capacity / 2)
  39         new_capacity *= 2;
  40     if (new_capacity < count)
  41         new_capacity = max_capacity;
  42
  43     if (!(new_elements = realloc(*elements, new_capacity * size)))
  44         return FALSE;
  45
  46     *elements = new_elements;
  47     *capacity = new_capacity;
  48
  49     return TRUE;
  50 }
  51
  52 struct activate_funcs
  53 {
  54     HRESULT (*create_object)(IMFAttributes *attributes, void *context, IUnknown **object);
  55     void (*shutdown_object)(void *context, IUnknown *object);
  56     void (*free_private)(void *context);
  57 };
  58
  59 HRESULT create_activation_object(void *context, const struct activate_funcs *funcs, IMFActivate **ret) DECLSPEC_HIDDEN;
  60
  61 static inline const char *debugstr_time(LONGLONG time)
  62 {
  63     ULONGLONG abstime = time >= 0 ? time : -time;
  64     unsigned int i = 0, j = 0;
  65     char buffer[23], rev[23];
  66
  67     while (abstime || i <= 8)
  68     {
  69         buffer[i++] = '0' + (abstime % 10);
  70         abstime /= 10;
  71         if (i == 7) buffer[i++] = '.';
  72     }
  73     if (time < 0) buffer[i++] = '-';
  74
  75     while (i--) rev[j++] = buffer[i];
  76     while (rev[j-1] == '0' && rev[j-2] != '.') --j;
  77     rev[j] = 0;
  78
  79     return wine_dbg_sprintf("%s", rev);
  80 }
  81
  82 extern BOOL mf_is_sample_copier_transform(IMFTransform *transform) DECLSPEC_HIDDEN;
  83 extern HRESULT topology_node_get_object(IMFTopologyNode *node, REFIID riid, void **obj) DECLSPEC_HIDDEN;