dlls/d3dx9_36/core.c

   1 /*
   2  *
   3  * Copyright 2002 Raphael Junqueira
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2.1 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General Public
  16  * License along with this library; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  18  */
  19
  20 #include <stdarg.h>
  21
  22 #define COBJMACROS
  23 #include "windef.h"
  24 #include "winbase.h"
  25 #include "wingdi.h"
  26 #include "wine/debug.h"
  27 #include "wine/unicode.h"
  28
  29 #include "d3dx9_36_private.h"
  30
  31 WINE_DEFAULT_DEBUG_CHANNEL(d3dx);
  32
  33 typedef struct ID3DXBufferImpl
  34 {
  35     ID3DXBuffer ID3DXBuffer_iface;
  36     LONG ref;
  37
  38     DWORD *buffer;
  39     DWORD bufferSize;
  40 } ID3DXBufferImpl;
  41
  42 static inline ID3DXBufferImpl *impl_from_ID3DXBuffer(ID3DXBuffer *iface)
  43 {
  44     return CONTAINING_RECORD(iface, ID3DXBufferImpl, ID3DXBuffer_iface);
  45 }
  46
  47 static HRESULT WINAPI ID3DXBufferImpl_QueryInterface(ID3DXBuffer *iface, REFIID riid, void **ppobj)
  48 {
  49     ID3DXBufferImpl *This = impl_from_ID3DXBuffer(iface);
  50
  51     if (IsEqualGUID(riid, &IID_IUnknown)
  52       || IsEqualGUID(riid, &IID_ID3DXBuffer))
  53     {
  54         IUnknown_AddRef(iface);
  55         *ppobj = This;
  56         return D3D_OK;
  57     }
  58
  59     WARN("(%p)->(%s,%p),not found\n",This,debugstr_guid(riid),ppobj);
  60     return E_NOINTERFACE;
  61 }
  62
  63 static ULONG WINAPI ID3DXBufferImpl_AddRef(ID3DXBuffer *iface)
  64 {
  65     ID3DXBufferImpl *This = impl_from_ID3DXBuffer(iface);
  66     ULONG ref = InterlockedIncrement(&This->ref);
  67
  68     TRACE("(%p) : AddRef from %d\n", This, ref - 1);
  69
  70     return ref;
  71 }
  72
  73 static ULONG WINAPI ID3DXBufferImpl_Release(ID3DXBuffer *iface)
  74 {
  75     ID3DXBufferImpl *This = impl_from_ID3DXBuffer(iface);
  76     ULONG ref = InterlockedDecrement(&This->ref);
  77
  78     TRACE("(%p) : ReleaseRef to %d\n", This, ref);
  79
  80     if (ref == 0)
  81     {
  82         HeapFree(GetProcessHeap(), 0, This->buffer);
  83         HeapFree(GetProcessHeap(), 0, This);
  84     }
  85     return ref;
  86 }
  87
  88 static LPVOID WINAPI ID3DXBufferImpl_GetBufferPointer(ID3DXBuffer *iface)
  89 {
  90     ID3DXBufferImpl *This = impl_from_ID3DXBuffer(iface);
  91     return This->buffer;
  92 }
  93
  94 static DWORD WINAPI ID3DXBufferImpl_GetBufferSize(ID3DXBuffer *iface)
  95 {
  96     ID3DXBufferImpl *This = impl_from_ID3DXBuffer(iface);
  97     return This->bufferSize;
  98 }
  99
 100 const ID3DXBufferVtbl D3DXBuffer_Vtbl =
 101 {
 102     ID3DXBufferImpl_QueryInterface,
 103     ID3DXBufferImpl_AddRef,
 104     ID3DXBufferImpl_Release,
 105     ID3DXBufferImpl_GetBufferPointer,
 106     ID3DXBufferImpl_GetBufferSize
 107 };
 108
 109 HRESULT WINAPI D3DXCreateBuffer(DWORD NumBytes, LPD3DXBUFFER* ppBuffer)
 110 {
 111     ID3DXBufferImpl *object;
 112
 113     object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(ID3DXBufferImpl));
 114     if (object == NULL)
 115     {
 116         *ppBuffer = NULL;
 117         return E_OUTOFMEMORY;
 118     }
 119     object->ID3DXBuffer_iface.lpVtbl = &D3DXBuffer_Vtbl;
 120     object->ref = 1;
 121     object->bufferSize = NumBytes;
 122     object->buffer = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, NumBytes);
 123     if (object->buffer == NULL)
 124     {
 125         HeapFree(GetProcessHeap(), 0, object);
 126         *ppBuffer = NULL;
 127         return E_OUTOFMEMORY;
 128     }
 129
 130     *ppBuffer = &object->ID3DXBuffer_iface;
 131     return D3D_OK;
 132 }