00001 /* 00002 ----------------------------------------------------------------------------- 00003 This source file is part of OGRE 00004 (Object-oriented Graphics Rendering Engine) 00005 For the latest info, see http://www.ogre3d.org/ 00006 00007 Copyright (c) 2000-2012 Torus Knot Software Ltd 00008 00009 Permission is hereby granted, free of charge, to any person obtaining a copy 00010 of this software and associated documentation files (the "Software"), to deal 00011 in the Software without restriction, including without limitation the rights 00012 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 00013 copies of the Software, and to permit persons to whom the Software is 00014 furnished to do so, subject to the following conditions: 00015 00016 The above copyright notice and this permission notice shall be included in 00017 all copies or substantial portions of the Software. 00018 00019 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 00020 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 00021 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 00022 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 00023 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 00024 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 00025 THE SOFTWARE. 00026 ----------------------------------------------------------------------------- 00027 */ 00028 #ifndef __D3D9HARDWAREVERTEXBUFFER_H__ 00029 #define __D3D9HARDWAREVERTEXBUFFER_H__ 00030 00031 #include "OgreD3D9Prerequisites.h" 00032 #include "OgreHardwareVertexBuffer.h" 00033 #include "OgreD3D9Resource.h" 00034 00035 namespace Ogre { 00036 00038 class _OgreD3D9Export D3D9HardwareVertexBuffer : public HardwareVertexBuffer, public D3D9Resource 00039 { 00040 00041 public: 00042 D3D9HardwareVertexBuffer(HardwareBufferManagerBase* mgr, size_t vertexSize, 00043 size_t numVertices, HardwareBuffer::Usage usage, bool useSystemMem, bool useShadowBuffer); 00044 ~D3D9HardwareVertexBuffer(); 00046 void readData(size_t offset, size_t length, void* pDest); 00048 void writeData(size_t offset, size_t length, const void* pSource, 00049 bool discardWholeBuffer = false); 00050 00051 // Called immediately after the Direct3D device has been created. 00052 virtual void notifyOnDeviceCreate(IDirect3DDevice9* d3d9Device); 00053 00054 // Called before the Direct3D device is going to be destroyed. 00055 virtual void notifyOnDeviceDestroy(IDirect3DDevice9* d3d9Device); 00056 00057 // Called immediately after the Direct3D device has entered a lost state. 00058 virtual void notifyOnDeviceLost(IDirect3DDevice9* d3d9Device); 00059 00060 // Called immediately after the Direct3D device has been reset 00061 virtual void notifyOnDeviceReset(IDirect3DDevice9* d3d9Device); 00062 00063 // Create the actual vertex buffer. 00064 void createBuffer(IDirect3DDevice9* d3d9Device, D3DPOOL ePool); 00065 00067 IDirect3DVertexBuffer9* getD3D9VertexBuffer(void); 00068 00069 protected: 00070 struct BufferResources 00071 { 00072 IDirect3DVertexBuffer9* mBuffer; 00073 bool mOutOfDate; 00074 size_t mLockOffset; 00075 size_t mLockLength; 00076 LockOptions mLockOptions; 00077 uint mLastUsedFrame; 00078 }; 00079 00080 protected: 00082 void* lockImpl(size_t offset, size_t length, LockOptions options); 00083 00085 void unlockImpl(void); 00086 00088 void updateBufferContent(BufferResources* bufferResources); 00089 00090 // updates buffer resources from system memory buffer. 00091 bool updateBufferResources(const char* systemMemoryBuffer, BufferResources* bufferResources); 00092 00094 char* _lockBuffer(BufferResources* bufferResources, size_t offset, size_t length); 00095 00097 void _unlockBuffer(BufferResources* bufferResources); 00098 00099 00100 protected: 00101 typedef map<IDirect3DDevice9*, BufferResources*>::type DeviceToBufferResourcesMap; 00102 typedef DeviceToBufferResourcesMap::iterator DeviceToBufferResourcesIterator; 00103 00104 DeviceToBufferResourcesMap mMapDeviceToBufferResources; // Map between device to buffer resources. 00105 D3DVERTEXBUFFER_DESC mBufferDesc; // Buffer description. 00106 BufferResources* mSourceBuffer; // Source buffer resources when working with multiple devices. 00107 char* mSourceLockedBytes; // Source buffer locked bytes. 00108 char* mSystemMemoryBuffer; // Consistent system memory buffer for multiple devices support in case of write only buffers. 00109 }; 00110 } 00111 #endif 00112
Copyright © 2012 Torus Knot Software Ltd
This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.
Last modified Sun Sep 2 2012 07:27:21