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 /* ID3DXBuffer IUnknown parts follow: */
  34 static HRESULT WINAPI ID3DXBufferImpl_QueryInterface(LPD3DXBUFFER iface, REFIID riid, LPVOID* ppobj)
  35 {
  36     ID3DXBufferImpl *This = (ID3DXBufferImpl *)iface;
  37
  38     if (IsEqualGUID(riid, &IID_IUnknown)
  39       || IsEqualGUID(riid, &IID_ID3DXBuffer))
  40     {
  41         IUnknown_AddRef(iface);
  42         *ppobj = This;
  43         return D3D_OK;
  44     }
  45
  46     WARN("(%p)->(%s,%p),not found\n",This,debugstr_guid(riid),ppobj);
  47     return E_NOINTERFACE;
  48 }
  49
  50 static ULONG WINAPI ID3DXBufferImpl_AddRef(LPD3DXBUFFER iface)
  51 {
  52     ID3DXBufferImpl *This = (ID3DXBufferImpl *)iface;
  53     ULONG ref = InterlockedIncrement(&This->ref);
  54
  55     TRACE("(%p) : AddRef from %d\n", This, ref - 1);
  56
  57     return ref;
  58 }
  59
  60 static ULONG WINAPI ID3DXBufferImpl_Release(LPD3DXBUFFER iface)
  61 {
  62     ID3DXBufferImpl *This = (ID3DXBufferImpl *)iface;
  63     ULONG ref = InterlockedDecrement(&This->ref);
  64
  65     TRACE("(%p) : ReleaseRef to %d\n", This, ref);
  66
  67     if (ref == 0)
  68     {
  69         HeapFree(GetProcessHeap(), 0, This->buffer);
  70         HeapFree(GetProcessHeap(), 0, This);
  71     }
  72     return ref;
  73 }
  74
  75 /* ID3DXBuffer Interface follow: */
  76 static LPVOID WINAPI ID3DXBufferImpl_GetBufferPointer(LPD3DXBUFFER iface)
  77 {
  78     ID3DXBufferImpl *This = (ID3DXBufferImpl *)iface;
  79     return This->buffer;
  80 }
  81
  82 static DWORD WINAPI ID3DXBufferImpl_GetBufferSize(LPD3DXBUFFER iface)
  83 {
  84     ID3DXBufferImpl *This = (ID3DXBufferImpl *)iface;
  85     return This->bufferSize;
  86 }
  87
  88 const ID3DXBufferVtbl D3DXBuffer_Vtbl =
  89 {
  90     ID3DXBufferImpl_QueryInterface,
  91     ID3DXBufferImpl_AddRef,
  92     ID3DXBufferImpl_Release,
  93     ID3DXBufferImpl_GetBufferPointer,
  94     ID3DXBufferImpl_GetBufferSize
  95 };
  96
  97 HRESULT WINAPI D3DXCreateBuffer(DWORD NumBytes, LPD3DXBUFFER* ppBuffer)
  98 {
  99     ID3DXBufferImpl *object;
 100
 101     object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(ID3DXBufferImpl));
 102     if (object == NULL)
 103     {
 104         *ppBuffer = NULL;
 105         return E_OUTOFMEMORY;
 106     }
 107     object->lpVtbl = &D3DXBuffer_Vtbl;
 108     object->ref = 1;
 109     object->bufferSize = NumBytes;
 110     object->buffer = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, NumBytes);
 111     if (object->buffer == NULL)
 112     {
 113         HeapFree(GetProcessHeap(), 0, object);
 114         *ppBuffer = NULL;
 115         return E_OUTOFMEMORY;
 116     }
 117
 118     *ppBuffer = (LPD3DXBUFFER)object;
 119     return D3D_OK;
 120 }