dlls/wined3d/sampler.c

   1 /*
   2  * Copyright 2012 Henri Verbeet 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
  20 #include "config.h"
  21 #include "wine/port.h"
  22
  23 #include "wined3d_private.h"
  24
  25 WINE_DEFAULT_DEBUG_CHANNEL(d3d);
  26
  27 ULONG CDECL wined3d_sampler_incref(struct wined3d_sampler *sampler)
  28 {
  29     ULONG refcount = InterlockedIncrement(&sampler->refcount);
  30
  31     TRACE("%p increasing refcount to %u.\n", sampler, refcount);
  32
  33     return refcount;
  34 }
  35
  36 ULONG CDECL wined3d_sampler_decref(struct wined3d_sampler *sampler)
  37 {
  38     ULONG refcount = InterlockedDecrement(&sampler->refcount);
  39
  40     TRACE("%p decreasing refcount to %u.\n", sampler, refcount);
  41
  42     if (!refcount)
  43         HeapFree(GetProcessHeap(), 0, sampler);
  44
  45     return refcount;
  46 }
  47
  48 void * CDECL wined3d_sampler_get_parent(const struct wined3d_sampler *sampler)
  49 {
  50     TRACE("sampler %p.\n", sampler);
  51
  52     return sampler->parent;
  53 }
  54
  55 static void wined3d_sampler_init(struct wined3d_sampler *sampler, void *parent)
  56 {
  57     sampler->refcount = 1;
  58     sampler->parent = parent;
  59 }
  60
  61 HRESULT CDECL wined3d_sampler_create(void *parent, struct wined3d_sampler **sampler)
  62 {
  63     struct wined3d_sampler *object;
  64
  65     TRACE("parent %p, sampler %p.\n", parent, sampler);
  66
  67     if (!(object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*object))))
  68         return E_OUTOFMEMORY;
  69
  70     wined3d_sampler_init(object, parent);
  71
  72     TRACE("Created sampler %p.\n", object);
  73     *sampler = object;
  74
  75     return WINED3D_OK;
  76 }