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 "config.h" 21 #include "wine/port.h" 22 23 #include "d3dx9_private.h" 24 25 WINE_DEFAULT_DEBUG_CHANNEL(d3dx); 26 27 struct ID3DXBufferImpl 28 { 29 ID3DXBuffer ID3DXBuffer_iface; 30 LONG ref; 31 32 void *buffer; 33 DWORD size; 34 }; 35 36 static inline struct ID3DXBufferImpl *impl_from_ID3DXBuffer(ID3DXBuffer *iface) 37 { 38 return CONTAINING_RECORD(iface, struct ID3DXBufferImpl, ID3DXBuffer_iface); 39 } 40 41 static HRESULT WINAPI ID3DXBufferImpl_QueryInterface(ID3DXBuffer *iface, REFIID riid, void **ppobj) 42 { 43 TRACE("iface %p, riid %s, object %p\n", iface, debugstr_guid(riid), ppobj); 44 45 if (IsEqualGUID(riid, &IID_IUnknown) 46 || IsEqualGUID(riid, &IID_ID3DXBuffer)) 47 { 48 IUnknown_AddRef(iface); 49 *ppobj = iface; 50 return D3D_OK; 51 } 52 53 WARN("%s not implemented, returning E_NOINTERFACE\n", debugstr_guid(riid)); 54 55 return E_NOINTERFACE; 56 } 57 58 static ULONG WINAPI ID3DXBufferImpl_AddRef(ID3DXBuffer *iface) 59 { 60 struct ID3DXBufferImpl *This = impl_from_ID3DXBuffer(iface); 61 ULONG ref = InterlockedIncrement(&This->ref); 62 63 TRACE("%p increasing refcount to %u\n", This, ref); 64 65 return ref; 66 } 67 68 static ULONG WINAPI ID3DXBufferImpl_Release(ID3DXBuffer *iface) 69 { 70 struct ID3DXBufferImpl *This = impl_from_ID3DXBuffer(iface); 71 ULONG ref = InterlockedDecrement(&This->ref); 72 73 TRACE("%p decreasing refcount to %u\n", This, ref); 74 75 if (ref == 0) 76 { 77 HeapFree(GetProcessHeap(), 0, This->buffer); 78 HeapFree(GetProcessHeap(), 0, This); 79 } 80 81 return ref; 82 } 83 84 static void * WINAPI ID3DXBufferImpl_GetBufferPointer(ID3DXBuffer *iface) 85 { 86 struct ID3DXBufferImpl *This = impl_from_ID3DXBuffer(iface); 87 88 TRACE("iface %p\n", iface); 89 90 return This->buffer; 91 } 92 93 static DWORD WINAPI ID3DXBufferImpl_GetBufferSize(ID3DXBuffer *iface) 94 { 95 struct ID3DXBufferImpl *This = impl_from_ID3DXBuffer(iface); 96 97 TRACE("iface %p\n", iface); 98 99 return This->size; 100 } 101 102 static const struct ID3DXBufferVtbl ID3DXBufferImpl_Vtbl = 103 { 104 /* IUnknown methods */ 105 ID3DXBufferImpl_QueryInterface, 106 ID3DXBufferImpl_AddRef, 107 ID3DXBufferImpl_Release, 108 /* ID3DXBuffer methods */ 109 ID3DXBufferImpl_GetBufferPointer, 110 ID3DXBufferImpl_GetBufferSize 111 }; 112 113 static HRESULT d3dx9_buffer_init(struct ID3DXBufferImpl *buffer, DWORD size) 114 { 115 buffer->ID3DXBuffer_iface.lpVtbl = &ID3DXBufferImpl_Vtbl; 116 buffer->ref = 1; 117 buffer->size = size; 118 119 buffer->buffer = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, size); 120 if (!buffer->buffer) 121 { 122 ERR("Failed to allocate buffer memory\n"); 123 return E_OUTOFMEMORY; 124 } 125 126 return D3D_OK; 127 } 128 129 HRESULT WINAPI D3DXCreateBuffer(DWORD size, ID3DXBuffer **buffer) 130 { 131 struct ID3DXBufferImpl *object; 132 HRESULT hr; 133 134 if (!buffer) 135 { 136 WARN("Invalid buffer specified.\n"); 137 return D3DERR_INVALIDCALL; 138 } 139 140 object = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*object)); 141 if (!object) 142 return E_OUTOFMEMORY; 143 144 hr = d3dx9_buffer_init(object, size); 145 if (FAILED(hr)) 146 { 147 WARN("Failed to initialize buffer, hr %#x.\n", hr); 148 HeapFree(GetProcessHeap(), 0, object); 149 return hr; 150 } 151 152 *buffer = &object->ID3DXBuffer_iface; 153 154 TRACE("Created ID3DXBuffer %p.\n", *buffer); 155 156 return D3D_OK; 157 } 158