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) 2000-2005 The OGRE Team
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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 | */
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25 | #include "OgreStableHeaders.h"
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26 | #include "OgreHardwareVertexBuffer.h"
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27 | #include "OgreColourValue.h"
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28 | #include "OgreException.h"
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29 | #include "OgreStringConverter.h"
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30 | #include "OgreHardwareBufferManager.h"
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31 | #include "OgreDefaultHardwareBufferManager.h"
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32 | #include "OgreRoot.h"
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33 | #include "OgreRenderSystem.h"
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34 |
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35 | namespace Ogre {
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36 |
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37 | //-----------------------------------------------------------------------------
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38 | HardwareVertexBuffer::HardwareVertexBuffer(size_t vertexSize,
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39 | size_t numVertices, HardwareBuffer::Usage usage,
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40 | bool useSystemMemory, bool useShadowBuffer)
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41 | : HardwareBuffer(usage, useSystemMemory, useShadowBuffer),
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42 | mNumVertices(numVertices),
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43 | mVertexSize(vertexSize)
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44 | {
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45 | // Calculate the size of the vertices
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46 | mSizeInBytes = mVertexSize * numVertices;
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47 |
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48 | // Create a shadow buffer if required
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49 | if (mUseShadowBuffer)
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50 | {
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51 | mpShadowBuffer = new DefaultHardwareVertexBuffer(mVertexSize,
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52 | mNumVertices, HardwareBuffer::HBU_DYNAMIC);
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53 | }
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54 |
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55 | }
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56 | //-----------------------------------------------------------------------------
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57 | HardwareVertexBuffer::~HardwareVertexBuffer()
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58 | {
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59 | HardwareBufferManager* mgr = HardwareBufferManager::getSingletonPtr();
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60 | if (mgr)
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61 | {
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62 | mgr->_notifyVertexBufferDestroyed(this);
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63 | }
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64 | if (mpShadowBuffer)
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65 | {
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66 | delete mpShadowBuffer;
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67 | }
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68 | }
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69 | //-----------------------------------------------------------------------------
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70 | VertexElement::VertexElement(unsigned short source, size_t offset,
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71 | VertexElementType theType, VertexElementSemantic semantic, unsigned short index)
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72 | : mSource(source), mOffset(offset), mType(theType),
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73 | mSemantic(semantic), mIndex(index)
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74 | {
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75 | }
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76 | //-----------------------------------------------------------------------------
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77 | size_t VertexElement::getSize(void) const
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78 | {
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79 | return getTypeSize(mType);
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80 | }
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81 | //-----------------------------------------------------------------------------
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82 | size_t VertexElement::getTypeSize(VertexElementType etype)
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83 | {
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84 | switch(etype)
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85 | {
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86 | case VET_COLOUR:
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87 | case VET_COLOUR_ABGR:
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88 | case VET_COLOUR_ARGB:
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89 | return sizeof(RGBA);
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90 | case VET_FLOAT1:
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91 | return sizeof(float);
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92 | case VET_FLOAT2:
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93 | return sizeof(float)*2;
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94 | case VET_FLOAT3:
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95 | return sizeof(float)*3;
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96 | case VET_FLOAT4:
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97 | return sizeof(float)*4;
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98 | case VET_SHORT1:
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99 | return sizeof(short);
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100 | case VET_SHORT2:
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101 | return sizeof(short)*2;
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102 | case VET_SHORT3:
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103 | return sizeof(short)*3;
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104 | case VET_SHORT4:
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105 | return sizeof(short)*4;
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106 | case VET_UBYTE4:
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107 | return sizeof(unsigned char)*4;
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108 | }
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109 | return 0;
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110 | }
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111 | //-----------------------------------------------------------------------------
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112 | unsigned short VertexElement::getTypeCount(VertexElementType etype)
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113 | {
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114 | switch (etype)
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115 | {
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116 | case VET_COLOUR:
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117 | case VET_COLOUR_ABGR:
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118 | case VET_COLOUR_ARGB:
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119 | return 1;
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120 | case VET_FLOAT1:
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121 | return 1;
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122 | case VET_FLOAT2:
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123 | return 2;
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124 | case VET_FLOAT3:
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125 | return 3;
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126 | case VET_FLOAT4:
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127 | return 4;
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128 | case VET_SHORT1:
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129 | return 1;
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130 | case VET_SHORT2:
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131 | return 2;
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132 | case VET_SHORT3:
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133 | return 3;
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134 | case VET_SHORT4:
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135 | return 4;
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136 | case VET_UBYTE4:
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137 | return 4;
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138 | }
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139 | OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS, "Invalid type",
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140 | "VertexElement::getTypeCount");
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141 | }
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142 | //-----------------------------------------------------------------------------
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143 | VertexElementType VertexElement::multiplyTypeCount(VertexElementType baseType,
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144 | unsigned short count)
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145 | {
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146 | switch (baseType)
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147 | {
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148 | case VET_FLOAT1:
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149 | switch(count)
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150 | {
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151 | case 1:
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152 | return VET_FLOAT1;
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153 | case 2:
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154 | return VET_FLOAT2;
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155 | case 3:
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156 | return VET_FLOAT3;
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157 | case 4:
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158 | return VET_FLOAT4;
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159 | default:
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160 | break;
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161 | }
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162 | break;
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163 | case VET_SHORT1:
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164 | switch(count)
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165 | {
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166 | case 1:
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167 | return VET_SHORT1;
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168 | case 2:
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169 | return VET_SHORT2;
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170 | case 3:
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171 | return VET_SHORT3;
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172 | case 4:
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173 | return VET_SHORT4;
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174 | default:
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175 | break;
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176 | }
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177 | break;
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178 | default:
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179 | break;
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180 | }
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181 | OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS, "Invalid base type",
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182 | "VertexElement::multiplyTypeCount");
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183 | }
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184 | //--------------------------------------------------------------------------
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185 | VertexElementType VertexElement::getBestColourVertexElementType(void)
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186 | {
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187 | // Use the current render system to determine if possible
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188 | if (Root::getSingletonPtr() && Root::getSingletonPtr()->getRenderSystem())
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189 | {
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190 | return Root::getSingleton().getRenderSystem()->getColourVertexElementType();
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191 | }
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192 | else
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193 | {
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194 | // We can't know the specific type right now, so pick a type
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195 | // based on platform
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196 | #if OGRE_PLATFORM == OGRE_PLATFORM_WIN32
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197 | return VET_COLOUR_ARGB; // prefer D3D format on windows
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198 | #else
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199 | return VET_COLOUR_ABGR; // prefer GL format on everything else
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200 | #endif
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201 |
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202 | }
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203 | }
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204 | //--------------------------------------------------------------------------
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205 | void VertexElement::convertColourValue(VertexElementType srcType,
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206 | VertexElementType dstType, uint32* ptr)
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207 | {
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208 | if (srcType == dstType)
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209 | return;
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210 |
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211 | // Conversion between ARGB and ABGR is always a case of flipping R/B
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212 | *ptr =
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213 | ((*ptr&0x00FF0000)>>16)|((*ptr&0x000000FF)<<16)|(*ptr&0xFF00FF00);
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214 | }
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215 | //--------------------------------------------------------------------------
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216 | uint32 VertexElement::convertColourValue(const ColourValue& src,
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217 | VertexElementType dst)
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218 | {
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219 | switch(dst)
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220 | {
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221 | #if OGRE_PLATFORM == OGRE_PLATFORM_WIN32
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222 | default:
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223 | #endif
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224 | case VET_COLOUR_ARGB:
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225 | return src.getAsARGB();
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226 | #if OGRE_PLATFORM != OGRE_PLATFORM_WIN32
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227 | default:
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228 | #endif
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229 | case VET_COLOUR_ABGR:
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230 | return src.getAsABGR();
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231 | };
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232 |
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233 | }
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234 | //-----------------------------------------------------------------------------
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235 | VertexElementType VertexElement::getBaseType(VertexElementType multiType)
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236 | {
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237 | switch (multiType)
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238 | {
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239 | case VET_FLOAT1:
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240 | case VET_FLOAT2:
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241 | case VET_FLOAT3:
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242 | case VET_FLOAT4:
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243 | return VET_FLOAT1;
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244 | case VET_COLOUR:
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245 | return VET_COLOUR;
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246 | case VET_COLOUR_ABGR:
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247 | return VET_COLOUR_ABGR;
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248 | case VET_COLOUR_ARGB:
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249 | return VET_COLOUR_ARGB;
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250 | case VET_SHORT1:
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251 | case VET_SHORT2:
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252 | case VET_SHORT3:
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253 | case VET_SHORT4:
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254 | return VET_SHORT1;
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255 | case VET_UBYTE4:
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256 | return VET_UBYTE4;
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257 | };
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258 | // To keep compiler happy
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259 | return VET_FLOAT1;
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260 | }
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261 | //-----------------------------------------------------------------------------
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262 | VertexDeclaration::VertexDeclaration()
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263 | {
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264 | }
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265 | //-----------------------------------------------------------------------------
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266 | VertexDeclaration::~VertexDeclaration()
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267 | {
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268 | }
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269 | //-----------------------------------------------------------------------------
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270 | const VertexDeclaration::VertexElementList& VertexDeclaration::getElements(void) const
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271 | {
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272 | return mElementList;
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273 | }
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274 | //-----------------------------------------------------------------------------
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275 | const VertexElement& VertexDeclaration::addElement(unsigned short source,
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276 | size_t offset, VertexElementType theType,
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277 | VertexElementSemantic semantic, unsigned short index)
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278 | {
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279 | // Refine colour type to a specific type
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280 | if (theType == VET_COLOUR)
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281 | {
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282 | theType = VertexElement::getBestColourVertexElementType();
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283 | }
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284 | mElementList.push_back(
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285 | VertexElement(source, offset, theType, semantic, index)
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286 | );
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287 | return mElementList.back();
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288 | }
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289 | //-----------------------------------------------------------------------------
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290 | const VertexElement& VertexDeclaration::insertElement(unsigned short atPosition,
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291 | unsigned short source, size_t offset, VertexElementType theType,
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292 | VertexElementSemantic semantic, unsigned short index)
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293 | {
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294 | if (atPosition >= mElementList.size())
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295 | {
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296 | return addElement(source, offset, theType, semantic, index);
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297 | }
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298 |
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299 | VertexElementList::iterator i = mElementList.begin();
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300 | for (unsigned short n = 0; n < atPosition; ++n)
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301 | ++i;
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302 |
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303 | i = mElementList.insert(i,
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304 | VertexElement(source, offset, theType, semantic, index));
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305 | return *i;
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306 |
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307 | }
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308 | //-----------------------------------------------------------------------------
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309 | const VertexElement* VertexDeclaration::getElement(unsigned short index)
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310 | {
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311 | assert(index < mElementList.size() && "Index out of bounds");
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312 |
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313 | VertexElementList::iterator i = mElementList.begin();
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314 | for (unsigned short n = 0; n < index; ++n)
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315 | ++i;
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316 |
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317 | return &(*i);
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318 |
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319 | }
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320 | //-----------------------------------------------------------------------------
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321 | void VertexDeclaration::removeElement(unsigned short elem_index)
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322 | {
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323 | assert(elem_index < mElementList.size() && "Index out of bounds");
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324 | VertexElementList::iterator i = mElementList.begin();
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325 | for (unsigned short n = 0; n < elem_index; ++n)
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326 | ++i;
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327 | mElementList.erase(i);
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328 | }
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329 | //-----------------------------------------------------------------------------
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330 | void VertexDeclaration::removeElement(VertexElementSemantic semantic, unsigned short index)
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331 | {
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332 | VertexElementList::iterator ei, eiend;
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333 | eiend = mElementList.end();
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334 | for (ei = mElementList.begin(); ei != eiend; ++ei)
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335 | {
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336 | if (ei->getSemantic() == semantic && ei->getIndex() == index)
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337 | {
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338 | mElementList.erase(ei);
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339 | break;
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340 | }
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341 | }
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342 | }
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343 | //-----------------------------------------------------------------------------
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344 | void VertexDeclaration::removeAllElements(void)
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345 | {
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346 | mElementList.clear();
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347 | }
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348 | //-----------------------------------------------------------------------------
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349 | void VertexDeclaration::modifyElement(unsigned short elem_index,
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350 | unsigned short source, size_t offset, VertexElementType theType,
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351 | VertexElementSemantic semantic, unsigned short index)
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352 | {
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353 | assert(elem_index < mElementList.size() && "Index out of bounds");
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354 | VertexElementList::iterator i = mElementList.begin();
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355 | std::advance(i, elem_index);
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356 | (*i) = VertexElement(source, offset, theType, semantic, index);
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357 | }
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358 | //-----------------------------------------------------------------------------
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359 | const VertexElement* VertexDeclaration::findElementBySemantic(
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360 | VertexElementSemantic sem, unsigned short index)
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361 | {
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362 | VertexElementList::const_iterator ei, eiend;
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363 | eiend = mElementList.end();
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364 | for (ei = mElementList.begin(); ei != eiend; ++ei)
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365 | {
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366 | if (ei->getSemantic() == sem && ei->getIndex() == index)
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367 | {
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368 | return &(*ei);
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369 | }
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370 | }
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371 |
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372 | return NULL;
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373 |
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374 |
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375 | }
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376 | //-----------------------------------------------------------------------------
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377 | VertexDeclaration::VertexElementList VertexDeclaration::findElementsBySource(
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378 | unsigned short source)
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379 | {
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380 | VertexElementList retList;
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381 | VertexElementList::const_iterator ei, eiend;
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382 | eiend = mElementList.end();
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383 | for (ei = mElementList.begin(); ei != eiend; ++ei)
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384 | {
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385 | if (ei->getSource() == source)
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386 | {
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387 | retList.push_back(*ei);
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388 | }
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389 | }
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390 | return retList;
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391 |
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392 | }
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393 |
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394 | //-----------------------------------------------------------------------------
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395 | size_t VertexDeclaration::getVertexSize(unsigned short source)
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396 | {
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397 | VertexElementList::const_iterator i, iend;
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398 | iend = mElementList.end();
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399 | size_t sz = 0;
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400 |
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401 | for (i = mElementList.begin(); i != iend; ++i)
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402 | {
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403 | if (i->getSource() == source)
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404 | {
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405 | sz += i->getSize();
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406 |
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407 | }
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408 | }
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409 | return sz;
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410 | }
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411 | //-----------------------------------------------------------------------------
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412 | VertexDeclaration* VertexDeclaration::clone(void)
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413 | {
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414 | VertexDeclaration* ret = HardwareBufferManager::getSingleton().createVertexDeclaration();
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415 |
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416 | VertexElementList::const_iterator i, iend;
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417 | iend = mElementList.end();
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418 | for (i = mElementList.begin(); i != iend; ++i)
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419 | {
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420 | ret->addElement(i->getSource(), i->getOffset(), i->getType(), i->getSemantic(), i->getIndex());
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421 | }
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422 | return ret;
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423 | }
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424 | //-----------------------------------------------------------------------------
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425 | // Sort routine for VertexElement
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426 | bool VertexDeclaration::vertexElementLess(const VertexElement& e1, const VertexElement& e2)
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427 | {
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428 | // Sort by source first
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429 | if (e1.getSource() < e2.getSource())
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430 | {
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431 | return true;
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432 | }
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433 | else if (e1.getSource() == e2.getSource())
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434 | {
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435 | // Use ordering of semantics to sort
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436 | if (e1.getSemantic() < e2.getSemantic())
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437 | {
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438 | return true;
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439 | }
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440 | else if (e1.getSemantic() == e2.getSemantic())
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441 | {
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442 | // Use index to sort
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443 | if (e1.getIndex() < e2.getIndex())
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444 | {
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445 | return true;
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446 | }
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447 | }
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448 | }
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449 | return false;
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450 | }
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451 | void VertexDeclaration::sort(void)
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452 | {
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453 | mElementList.sort(VertexDeclaration::vertexElementLess);
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454 | }
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455 | //-----------------------------------------------------------------------------
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456 | void VertexDeclaration::closeGapsInSource(void)
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457 | {
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458 | if (mElementList.empty())
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459 | return;
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460 |
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461 | // Sort first
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462 | sort();
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463 |
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464 | VertexElementList::iterator i, iend;
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465 | iend = mElementList.end();
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466 | unsigned short targetIdx = 0;
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467 | unsigned short lastIdx = getElement(0)->getSource();
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468 | unsigned short c = 0;
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469 | for (i = mElementList.begin(); i != iend; ++i, ++c)
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470 | {
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471 | VertexElement& elem = *i;
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472 | if (lastIdx != elem.getSource())
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473 | {
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474 | targetIdx++;
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475 | lastIdx = elem.getSource();
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476 | }
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477 | if (targetIdx != elem.getSource())
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478 | {
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479 | modifyElement(c, targetIdx, elem.getOffset(), elem.getType(),
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480 | elem.getSemantic(), elem.getIndex());
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481 | }
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482 |
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483 | }
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484 |
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485 | }
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486 | //-----------------------------------------------------------------------
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487 | VertexDeclaration* VertexDeclaration::getAutoOrganisedDeclaration(
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488 | bool skeletalAnimation, bool vertexAnimation)
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489 | {
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490 | VertexDeclaration* newDecl = this->clone();
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491 | // Set all sources to the same buffer (for now)
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492 | const VertexDeclaration::VertexElementList& elems = newDecl->getElements();
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493 | VertexDeclaration::VertexElementList::const_iterator i;
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494 | unsigned short c = 0;
|
---|
495 | for (i = elems.begin(); i != elems.end(); ++i, ++c)
|
---|
496 | {
|
---|
497 | const VertexElement& elem = *i;
|
---|
498 | // Set source & offset to 0 for now, before sort
|
---|
499 | newDecl->modifyElement(c, 0, 0, elem.getType(), elem.getSemantic(), elem.getIndex());
|
---|
500 | }
|
---|
501 | newDecl->sort();
|
---|
502 | // Now sort out proper buffer assignments and offsets
|
---|
503 | size_t offset = 0;
|
---|
504 | c = 0;
|
---|
505 | unsigned short buffer = 0;
|
---|
506 | for (i = elems.begin(); i != elems.end(); ++i, ++c)
|
---|
507 | {
|
---|
508 | const VertexElement& elem = *i;
|
---|
509 | if (vertexAnimation && elem.getSemantic() == VES_NORMAL)
|
---|
510 | {
|
---|
511 | // For morph animation, we need positions on their own
|
---|
512 | ++buffer;
|
---|
513 | offset = 0;
|
---|
514 | }
|
---|
515 | if ((skeletalAnimation || vertexAnimation) &&
|
---|
516 | elem.getSemantic() != VES_POSITION && elem.getSemantic() != VES_NORMAL)
|
---|
517 | {
|
---|
518 | // All animated meshes have to split after normal
|
---|
519 | ++buffer;
|
---|
520 | offset = 0;
|
---|
521 | }
|
---|
522 | newDecl->modifyElement(c, buffer, offset,
|
---|
523 | elem.getType(), elem.getSemantic(), elem.getIndex());
|
---|
524 | offset += elem.getSize();
|
---|
525 | }
|
---|
526 |
|
---|
527 | return newDecl;
|
---|
528 |
|
---|
529 |
|
---|
530 | }
|
---|
531 | //-----------------------------------------------------------------------------
|
---|
532 | unsigned short VertexDeclaration::getMaxSource(void) const
|
---|
533 | {
|
---|
534 | VertexElementList::const_iterator i, iend;
|
---|
535 | iend = mElementList.end();
|
---|
536 | unsigned short ret = 0;
|
---|
537 | for (i = mElementList.begin(); i != iend; ++i)
|
---|
538 | {
|
---|
539 | if (i->getSource() > ret)
|
---|
540 | {
|
---|
541 | ret = i->getSource();
|
---|
542 | }
|
---|
543 |
|
---|
544 | }
|
---|
545 | return ret;
|
---|
546 | }
|
---|
547 | //-----------------------------------------------------------------------------
|
---|
548 | VertexBufferBinding::VertexBufferBinding() : mHighIndex(0)
|
---|
549 | {
|
---|
550 | }
|
---|
551 | //-----------------------------------------------------------------------------
|
---|
552 | VertexBufferBinding::~VertexBufferBinding()
|
---|
553 | {
|
---|
554 | unsetAllBindings();
|
---|
555 | }
|
---|
556 | //-----------------------------------------------------------------------------
|
---|
557 | void VertexBufferBinding::setBinding(unsigned short index, HardwareVertexBufferSharedPtr buffer)
|
---|
558 | {
|
---|
559 | // NB will replace any existing buffer ptr at this index, and will thus cause
|
---|
560 | // reference count to decrement on that buffer (possibly destroying it)
|
---|
561 | mBindingMap[index] = buffer;
|
---|
562 | mHighIndex = std::max(mHighIndex, (unsigned short)(index+1));
|
---|
563 | }
|
---|
564 | //-----------------------------------------------------------------------------
|
---|
565 | void VertexBufferBinding::unsetBinding(unsigned short index)
|
---|
566 | {
|
---|
567 | VertexBufferBindingMap::iterator i = mBindingMap.find(index);
|
---|
568 | if (i == mBindingMap.end())
|
---|
569 | {
|
---|
570 | OGRE_EXCEPT(Exception::ERR_ITEM_NOT_FOUND,
|
---|
571 | "Cannot find buffer binding for index " + StringConverter::toString(index),
|
---|
572 | "VertexBufferBinding::unsetBinding");
|
---|
573 | }
|
---|
574 | mBindingMap.erase(i);
|
---|
575 | }
|
---|
576 | //-----------------------------------------------------------------------------
|
---|
577 | void VertexBufferBinding::unsetAllBindings(void)
|
---|
578 | {
|
---|
579 | mBindingMap.clear();
|
---|
580 | }
|
---|
581 | //-----------------------------------------------------------------------------
|
---|
582 | const VertexBufferBinding::VertexBufferBindingMap&
|
---|
583 | VertexBufferBinding::getBindings(void) const
|
---|
584 | {
|
---|
585 | return mBindingMap;
|
---|
586 | }
|
---|
587 | //-----------------------------------------------------------------------------
|
---|
588 | HardwareVertexBufferSharedPtr VertexBufferBinding::getBuffer(unsigned short index)
|
---|
589 | {
|
---|
590 | VertexBufferBindingMap::iterator i = mBindingMap.find(index);
|
---|
591 | if (i == mBindingMap.end())
|
---|
592 | {
|
---|
593 | OGRE_EXCEPT(Exception::ERR_ITEM_NOT_FOUND, "No buffer is bound to that index.",
|
---|
594 | "VertexBufferBinding::getBuffer");
|
---|
595 | }
|
---|
596 | return i->second;
|
---|
597 | }
|
---|
598 | //-----------------------------------------------------------------------------
|
---|
599 | bool VertexBufferBinding::isBufferBound(unsigned short index)
|
---|
600 | {
|
---|
601 | return mBindingMap.find(index) != mBindingMap.end();
|
---|
602 | }
|
---|
603 | //-----------------------------------------------------------------------------
|
---|
604 | HardwareVertexBufferSharedPtr::HardwareVertexBufferSharedPtr(HardwareVertexBuffer* buf)
|
---|
605 | : SharedPtr<HardwareVertexBuffer>(buf)
|
---|
606 | {
|
---|
607 |
|
---|
608 | }
|
---|
609 |
|
---|
610 |
|
---|
611 |
|
---|
612 |
|
---|
613 | }
|
---|