[5] | 1 | /* |
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| 2 | ----------------------------------------------------------------------------- |
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| 3 | This source file is part of OGRE |
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| 4 | (Object-oriented Graphics Rendering Engine) |
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| 5 | For the latest info, see http://www.ogre3d.org/ |
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| 6 | |
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| 7 | Copyright (c) 2000-2006 Torus Knot Software Ltd |
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| 8 | Also see acknowledgements in Readme.html |
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| 9 | |
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| 10 | This program is free software; you can redistribute it and/or modify it under |
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| 11 | the terms of the GNU Lesser General Public License as published by the Free Software |
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| 12 | Foundation; either version 2 of the License, or (at your option) any later |
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| 13 | version. |
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| 14 | |
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| 15 | This program is distributed in the hope that it will be useful, but WITHOUT |
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| 16 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
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| 17 | FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. |
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| 18 | |
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| 19 | You should have received a copy of the GNU Lesser General Public License along with |
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| 20 | this program; if not, write to the Free Software Foundation, Inc., 59 Temple |
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| 21 | Place - Suite 330, Boston, MA 02111-1307, USA, or go to |
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| 22 | http://www.gnu.org/copyleft/lesser.txt. |
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| 23 | |
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| 24 | You may alternatively use this source under the terms of a specific version of |
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| 25 | the OGRE Unrestricted License provided you have obtained such a license from |
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| 26 | Torus Knot Software Ltd. |
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| 27 | ----------------------------------------------------------------------------- |
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| 28 | */ |
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| 29 | #include "OgreD3D9HardwareIndexBuffer.h" |
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| 30 | #include "OgreD3D9Mappings.h" |
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| 31 | #include "OgreException.h" |
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| 32 | #include "OgreD3D9HardwareBufferManager.h" |
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| 33 | |
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| 34 | namespace Ogre { |
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| 35 | |
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| 36 | //--------------------------------------------------------------------- |
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| 37 | D3D9HardwareIndexBuffer::D3D9HardwareIndexBuffer(HardwareIndexBuffer::IndexType idxType, |
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| 38 | size_t numIndexes, HardwareBuffer::Usage usage, LPDIRECT3DDEVICE9 pDev, |
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| 39 | bool useSystemMemory, bool useShadowBuffer) |
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| 40 | : HardwareIndexBuffer(idxType, numIndexes, usage, useSystemMemory, useShadowBuffer) |
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| 41 | { |
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| 42 | #if OGRE_D3D_MANAGE_BUFFERS |
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| 43 | mD3DPool = useSystemMemory? D3DPOOL_SYSTEMMEM : |
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| 44 | // If not system mem, use managed pool UNLESS buffer is discardable |
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| 45 | // if discardable, keeping the software backing is expensive |
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| 46 | (usage & HardwareBuffer::HBU_DISCARDABLE)? D3DPOOL_DEFAULT : D3DPOOL_MANAGED; |
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| 47 | #else |
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| 48 | mD3DPool = useSystemMemory? D3DPOOL_SYSTEMMEM : D3DPOOL_DEFAULT; |
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| 49 | #endif |
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| 50 | // Create the Index buffer |
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| 51 | HRESULT hr = pDev->CreateIndexBuffer( |
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| 52 | static_cast<UINT>(mSizeInBytes), |
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| 53 | D3D9Mappings::get(mUsage), |
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| 54 | D3D9Mappings::get(mIndexType), |
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| 55 | mD3DPool, |
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| 56 | &mlpD3DBuffer, |
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| 57 | NULL |
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| 58 | ); |
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| 59 | |
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| 60 | if (FAILED(hr)) |
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| 61 | { |
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| 62 | String msg = DXGetErrorDescription9(hr); |
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| 63 | OGRE_EXCEPT(Exception::ERR_RENDERINGAPI_ERROR, |
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| 64 | "Cannot create D3D9 Index buffer: " + msg, |
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| 65 | "D3D9HardwareIndexBuffer::D3D9HardwareIndexBuffer"); |
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| 66 | } |
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| 67 | |
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| 68 | } |
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| 69 | //--------------------------------------------------------------------- |
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| 70 | D3D9HardwareIndexBuffer::~D3D9HardwareIndexBuffer() |
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| 71 | { |
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| 72 | SAFE_RELEASE(mlpD3DBuffer); |
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| 73 | } |
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| 74 | //--------------------------------------------------------------------- |
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| 75 | void* D3D9HardwareIndexBuffer::lockImpl(size_t offset, |
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| 76 | size_t length, LockOptions options) |
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| 77 | { |
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| 78 | void* pBuf; |
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| 79 | HRESULT hr = mlpD3DBuffer->Lock( |
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| 80 | static_cast<UINT>(offset), |
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| 81 | static_cast<UINT>(length), |
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| 82 | &pBuf, |
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| 83 | D3D9Mappings::get(options, mUsage)); |
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| 84 | |
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| 85 | if (FAILED(hr)) |
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| 86 | { |
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| 87 | String msg = DXGetErrorDescription9(hr); |
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| 88 | OGRE_EXCEPT(Exception::ERR_RENDERINGAPI_ERROR, |
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| 89 | "Cannot lock D3D9 Index buffer: " + msg, |
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| 90 | "D3D9HardwareIndexBuffer::lock"); |
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| 91 | } |
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| 92 | |
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| 93 | |
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| 94 | return pBuf; |
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| 95 | |
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| 96 | |
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| 97 | } |
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| 98 | //--------------------------------------------------------------------- |
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| 99 | void D3D9HardwareIndexBuffer::unlockImpl(void) |
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| 100 | { |
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| 101 | HRESULT hr = mlpD3DBuffer->Unlock(); |
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| 102 | } |
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| 103 | //--------------------------------------------------------------------- |
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| 104 | void D3D9HardwareIndexBuffer::readData(size_t offset, size_t length, |
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| 105 | void* pDest) |
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| 106 | { |
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| 107 | // There is no functional interface in D3D, just do via manual |
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| 108 | // lock, copy & unlock |
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| 109 | void* pSrc = this->lock(offset, length, HardwareBuffer::HBL_READ_ONLY); |
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| 110 | memcpy(pDest, pSrc, length); |
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| 111 | this->unlock(); |
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| 112 | |
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| 113 | } |
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| 114 | //--------------------------------------------------------------------- |
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| 115 | void D3D9HardwareIndexBuffer::writeData(size_t offset, size_t length, |
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| 116 | const void* pSource, |
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| 117 | bool discardWholeBuffer) |
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| 118 | { |
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| 119 | // There is no functional interface in D3D, just do via manual |
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| 120 | // lock, copy & unlock |
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| 121 | void* pDst = this->lock(offset, length, |
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| 122 | discardWholeBuffer ? HardwareBuffer::HBL_DISCARD : HardwareBuffer::HBL_NORMAL); |
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| 123 | memcpy(pDst, pSource, length); |
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| 124 | this->unlock(); } |
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| 125 | //--------------------------------------------------------------------- |
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| 126 | bool D3D9HardwareIndexBuffer::releaseIfDefaultPool(void) |
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| 127 | { |
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| 128 | if (mD3DPool == D3DPOOL_DEFAULT) |
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| 129 | { |
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| 130 | SAFE_RELEASE(mlpD3DBuffer); |
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| 131 | return true; |
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| 132 | } |
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| 133 | return false; |
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| 134 | |
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| 135 | } |
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| 136 | //--------------------------------------------------------------------- |
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| 137 | bool D3D9HardwareIndexBuffer::recreateIfDefaultPool(LPDIRECT3DDEVICE9 pDev) |
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| 138 | { |
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| 139 | if (mD3DPool == D3DPOOL_DEFAULT) |
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| 140 | { |
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| 141 | // Create the Index buffer |
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| 142 | HRESULT hr = pDev->CreateIndexBuffer( |
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| 143 | static_cast<UINT>(mSizeInBytes), |
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| 144 | D3D9Mappings::get(mUsage), |
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| 145 | D3D9Mappings::get(mIndexType), |
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| 146 | mD3DPool, |
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| 147 | &mlpD3DBuffer, |
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| 148 | NULL |
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| 149 | ); |
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| 150 | |
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| 151 | if (FAILED(hr)) |
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| 152 | { |
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| 153 | String msg = DXGetErrorDescription9(hr); |
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| 154 | OGRE_EXCEPT(Exception::ERR_RENDERINGAPI_ERROR, |
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| 155 | "Cannot create D3D9 Index buffer: " + msg, |
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| 156 | "D3D9HardwareIndexBuffer::D3D9HardwareIndexBuffer"); |
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| 157 | } |
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| 158 | |
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| 159 | return true; |
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| 160 | } |
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| 161 | return false; |
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| 162 | } |
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| 163 | //--------------------------------------------------------------------- |
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| 164 | |
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| 165 | } |
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