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Object-Oriented Graphics Rendering Engine
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OgreD3D9HardwareVertexBuffer.h
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1 /*
2 -----------------------------------------------------------------------------
3 This source file is part of OGRE
4  (Object-oriented Graphics Rendering Engine)
5 For the latest info, see http://www.ogre3d.org/
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7 Copyright (c) 2000-2014 Torus Knot Software Ltd
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28 #ifndef __D3D9HARDWAREVERTEXBUFFER_H__
29 #define __D3D9HARDWAREVERTEXBUFFER_H__
30 
31 #include "OgreD3D9Prerequisites.h"
33 #include "OgreD3D9Resource.h"
34 
35 namespace Ogre {
36 
39  {
40 
41  public:
42  D3D9HardwareVertexBuffer(HardwareBufferManagerBase* mgr, size_t vertexSize,
43  size_t numVertices, HardwareBuffer::Usage usage, bool useSystemMem, bool useShadowBuffer);
46  void readData(size_t offset, size_t length, void* pDest);
48  void writeData(size_t offset, size_t length, const void* pSource,
49  bool discardWholeBuffer = false);
50 
51  // Called immediately after the Direct3D device has been created.
52  virtual void notifyOnDeviceCreate(IDirect3DDevice9* d3d9Device);
53 
54  // Called before the Direct3D device is going to be destroyed.
55  virtual void notifyOnDeviceDestroy(IDirect3DDevice9* d3d9Device);
56 
57  // Called immediately after the Direct3D device has entered a lost state.
58  virtual void notifyOnDeviceLost(IDirect3DDevice9* d3d9Device);
59 
60  // Called immediately after the Direct3D device has been reset
61  virtual void notifyOnDeviceReset(IDirect3DDevice9* d3d9Device);
62 
63  // Create the actual vertex buffer.
64  void createBuffer(IDirect3DDevice9* d3d9Device, D3DPOOL ePool, bool updateNewBuffer);
65 
67  IDirect3DVertexBuffer9* getD3D9VertexBuffer(void);
68 
69  protected:
71  {
72  IDirect3DVertexBuffer9* mBuffer;
73  bool mOutOfDate;
74  size_t mLockOffset;
75  size_t mLockLength;
76  LockOptions mLockOptions;
78  };
79 
80  protected:
82  void* lockImpl(size_t offset, size_t length, LockOptions options);
83 
85  void unlockImpl(void);
86 
88  void updateBufferContent(BufferResources* bufferResources);
89 
90  // updates buffer resources from system memory buffer.
91  bool updateBufferResources(const char* systemMemoryBuffer, BufferResources* bufferResources);
92 
94  char* _lockBuffer(BufferResources* bufferResources, size_t offset, size_t length);
95 
97  void _unlockBuffer(BufferResources* bufferResources);
98 
99 
100  protected:
102  typedef DeviceToBufferResourcesMap::iterator DeviceToBufferResourcesIterator;
103 
104  DeviceToBufferResourcesMap mMapDeviceToBufferResources; // Map between device to buffer resources.
105  D3DVERTEXBUFFER_DESC mBufferDesc; // Buffer description.
106  BufferResources* mSourceBuffer; // Source buffer resources when working with multiple devices.
107  char* mSourceLockedBytes; // Source buffer locked bytes.
108  };
109 }
110 #endif
111 
DeviceToBufferResourcesMap::iterator DeviceToBufferResourcesIterator
LockOptions
Locking options.
DeviceToBufferResourcesMap mMapDeviceToBufferResources
Specialisation of HardwareVertexBuffer for D3D9.
map< IDirect3DDevice9 *, BufferResources * >::type DeviceToBufferResourcesMap
#define _OgreD3D9Export
Base definition of a hardware buffer manager.
Usage
Enums describing buffer usage; not mutually exclusive.
Specialisation of HardwareBuffer for a vertex buffer.
unsigned int uint
Represents a Direct3D rendering resource.