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 |
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33 | namespace Ogre {
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34 |
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35 | //-----------------------------------------------------------------------------
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36 | HardwareVertexBuffer::HardwareVertexBuffer(size_t vertexSize,
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37 | size_t numVertices, HardwareBuffer::Usage usage,
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38 | bool useSystemMemory, bool useShadowBuffer)
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39 | : HardwareBuffer(usage, useSystemMemory, useShadowBuffer),
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40 | mNumVertices(numVertices),
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41 | mVertexSize(vertexSize)
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42 | {
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43 | // Calculate the size of the vertices
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44 | mSizeInBytes = mVertexSize * numVertices;
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45 |
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46 | // Create a shadow buffer if required
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47 | if (mUseShadowBuffer)
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48 | {
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49 | mpShadowBuffer = new DefaultHardwareVertexBuffer(mVertexSize,
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50 | mNumVertices, HardwareBuffer::HBU_DYNAMIC);
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51 | }
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52 |
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53 | }
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54 | //-----------------------------------------------------------------------------
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55 | HardwareVertexBuffer::~HardwareVertexBuffer()
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56 | {
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57 | HardwareBufferManager* mgr = HardwareBufferManager::getSingletonPtr();
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58 | if (mgr)
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59 | {
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60 | mgr->_notifyVertexBufferDestroyed(this);
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61 | }
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62 | if (mpShadowBuffer)
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63 | {
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64 | delete mpShadowBuffer;
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65 | }
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66 | }
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67 | //-----------------------------------------------------------------------------
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68 | VertexElement::VertexElement(unsigned short source, size_t offset,
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69 | VertexElementType theType, VertexElementSemantic semantic, unsigned short index)
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70 | : mSource(source), mOffset(offset), mType(theType),
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71 | mSemantic(semantic), mIndex(index)
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72 | {
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73 | }
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74 | //-----------------------------------------------------------------------------
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75 | size_t VertexElement::getSize(void) const
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76 | {
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77 | return getTypeSize(mType);
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78 | }
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79 | //-----------------------------------------------------------------------------
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80 | size_t VertexElement::getTypeSize(VertexElementType etype)
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81 | {
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82 | switch(etype)
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83 | {
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84 | case VET_COLOUR:
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85 | return sizeof(RGBA);
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86 | case VET_FLOAT1:
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87 | return sizeof(float);
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88 | case VET_FLOAT2:
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89 | return sizeof(float)*2;
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90 | case VET_FLOAT3:
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91 | return sizeof(float)*3;
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92 | case VET_FLOAT4:
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93 | return sizeof(float)*4;
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94 | case VET_SHORT1:
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95 | return sizeof(short);
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96 | case VET_SHORT2:
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97 | return sizeof(short)*2;
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98 | case VET_SHORT3:
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99 | return sizeof(short)*3;
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100 | case VET_SHORT4:
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101 | return sizeof(short)*4;
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102 | case VET_UBYTE4:
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103 | return sizeof(unsigned char)*4;
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104 | }
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105 | return 0;
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106 | }
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107 | //-----------------------------------------------------------------------------
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108 | unsigned short VertexElement::getTypeCount(VertexElementType etype)
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109 | {
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110 | switch (etype)
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111 | {
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112 | case VET_COLOUR:
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113 | return 1;
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114 | case VET_FLOAT1:
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115 | return 1;
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116 | case VET_FLOAT2:
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117 | return 2;
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118 | case VET_FLOAT3:
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119 | return 3;
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120 | case VET_FLOAT4:
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121 | return 4;
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122 | case VET_SHORT1:
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123 | return 1;
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124 | case VET_SHORT2:
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125 | return 2;
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126 | case VET_SHORT3:
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127 | return 3;
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128 | case VET_SHORT4:
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129 | return 4;
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130 | case VET_UBYTE4:
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131 | return 4;
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132 | }
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133 | OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS, "Invalid type",
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134 | "VertexElement::getTypeCount");
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135 | }
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136 | //-----------------------------------------------------------------------------
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137 | VertexElementType VertexElement::multiplyTypeCount(VertexElementType baseType,
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138 | unsigned short count)
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139 | {
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140 | switch (baseType)
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141 | {
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142 | case VET_FLOAT1:
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143 | switch(count)
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144 | {
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145 | case 1:
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146 | return VET_FLOAT1;
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147 | case 2:
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148 | return VET_FLOAT2;
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149 | case 3:
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150 | return VET_FLOAT3;
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151 | case 4:
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152 | return VET_FLOAT4;
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153 | default:
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154 | break;
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155 | }
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156 | break;
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157 | case VET_SHORT1:
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158 | switch(count)
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159 | {
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160 | case 1:
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161 | return VET_SHORT1;
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162 | case 2:
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163 | return VET_SHORT2;
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164 | case 3:
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165 | return VET_SHORT3;
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166 | case 4:
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167 | return VET_SHORT4;
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168 | default:
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169 | break;
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170 | }
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171 | break;
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172 | default:
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173 | break;
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174 | }
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175 | OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS, "Invalid base type",
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176 | "VertexElement::multiplyTypeCount");
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177 | }
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178 | //-----------------------------------------------------------------------------
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179 | VertexElementType VertexElement::getBaseType(VertexElementType multiType)
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180 | {
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181 | switch (multiType)
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182 | {
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183 | case VET_FLOAT1:
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184 | case VET_FLOAT2:
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185 | case VET_FLOAT3:
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186 | case VET_FLOAT4:
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187 | return VET_FLOAT1;
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188 | case VET_COLOUR:
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189 | return VET_COLOUR;
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190 | case VET_SHORT1:
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191 | case VET_SHORT2:
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192 | case VET_SHORT3:
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193 | case VET_SHORT4:
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194 | return VET_SHORT1;
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195 | case VET_UBYTE4:
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196 | return VET_UBYTE4;
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197 | };
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198 | // To keep compiler happy
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199 | return VET_FLOAT1;
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200 | }
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201 | //-----------------------------------------------------------------------------
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202 | VertexDeclaration::VertexDeclaration()
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203 | {
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204 | }
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205 | //-----------------------------------------------------------------------------
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206 | VertexDeclaration::~VertexDeclaration()
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207 | {
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208 | }
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209 | //-----------------------------------------------------------------------------
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210 | const VertexDeclaration::VertexElementList& VertexDeclaration::getElements(void) const
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211 | {
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212 | return mElementList;
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213 | }
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214 | //-----------------------------------------------------------------------------
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215 | const VertexElement& VertexDeclaration::addElement(unsigned short source,
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216 | size_t offset, VertexElementType theType,
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217 | VertexElementSemantic semantic, unsigned short index)
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218 | {
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219 | mElementList.push_back(
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220 | VertexElement(source, offset, theType, semantic, index)
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221 | );
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222 | return mElementList.back();
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223 | }
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224 | //-----------------------------------------------------------------------------
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225 | const VertexElement& VertexDeclaration::insertElement(unsigned short atPosition,
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226 | unsigned short source, size_t offset, VertexElementType theType,
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227 | VertexElementSemantic semantic, unsigned short index)
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228 | {
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229 | if (atPosition >= mElementList.size())
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230 | {
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231 | return addElement(source, offset, theType, semantic, index);
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232 | }
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233 |
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234 | VertexElementList::iterator i = mElementList.begin();
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235 | for (unsigned short n = 0; n < atPosition; ++n)
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236 | ++i;
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237 |
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238 | i = mElementList.insert(i,
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239 | VertexElement(source, offset, theType, semantic, index));
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240 | return *i;
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241 |
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242 | }
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243 | //-----------------------------------------------------------------------------
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244 | const VertexElement* VertexDeclaration::getElement(unsigned short index)
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245 | {
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246 | assert(index < mElementList.size() && "Index out of bounds");
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247 |
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248 | VertexElementList::iterator i = mElementList.begin();
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249 | for (unsigned short n = 0; n < index; ++n)
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250 | ++i;
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251 |
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252 | return &(*i);
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253 |
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254 | }
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255 | //-----------------------------------------------------------------------------
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256 | void VertexDeclaration::removeElement(unsigned short elem_index)
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257 | {
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258 | assert(elem_index < mElementList.size() && "Index out of bounds");
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259 | VertexElementList::iterator i = mElementList.begin();
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260 | for (unsigned short n = 0; n < elem_index; ++n)
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261 | ++i;
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262 | mElementList.erase(i);
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263 | }
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264 | //-----------------------------------------------------------------------------
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265 | void VertexDeclaration::removeElement(VertexElementSemantic semantic, unsigned short index)
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266 | {
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267 | VertexElementList::iterator ei, eiend;
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268 | eiend = mElementList.end();
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269 | for (ei = mElementList.begin(); ei != eiend; ++ei)
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270 | {
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271 | if (ei->getSemantic() == semantic && ei->getIndex() == index)
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272 | {
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273 | mElementList.erase(ei);
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274 | break;
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275 | }
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276 | }
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277 | }
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278 | //-----------------------------------------------------------------------------
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279 | void VertexDeclaration::modifyElement(unsigned short elem_index,
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280 | unsigned short source, size_t offset, VertexElementType theType,
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281 | VertexElementSemantic semantic, unsigned short index)
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282 | {
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283 | assert(elem_index < mElementList.size() && "Index out of bounds");
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284 | VertexElementList::iterator i = mElementList.begin();
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285 | std::advance(i, elem_index);
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286 | (*i) = VertexElement(source, offset, theType, semantic, index);
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287 | }
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288 | //-----------------------------------------------------------------------------
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289 | const VertexElement* VertexDeclaration::findElementBySemantic(
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290 | VertexElementSemantic sem, unsigned short index)
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291 | {
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292 | VertexElementList::const_iterator ei, eiend;
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293 | eiend = mElementList.end();
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294 | for (ei = mElementList.begin(); ei != eiend; ++ei)
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295 | {
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296 | if (ei->getSemantic() == sem && ei->getIndex() == index)
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297 | {
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298 | return &(*ei);
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299 | }
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300 | }
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301 |
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302 | return NULL;
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303 |
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304 |
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305 | }
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306 | //-----------------------------------------------------------------------------
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307 | VertexDeclaration::VertexElementList VertexDeclaration::findElementsBySource(
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308 | unsigned short source)
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309 | {
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310 | VertexElementList retList;
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311 | VertexElementList::const_iterator ei, eiend;
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312 | eiend = mElementList.end();
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313 | for (ei = mElementList.begin(); ei != eiend; ++ei)
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314 | {
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315 | if (ei->getSource() == source)
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316 | {
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317 | retList.push_back(*ei);
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318 | }
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319 | }
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320 | return retList;
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321 |
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322 | }
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323 |
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324 | //-----------------------------------------------------------------------------
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325 | size_t VertexDeclaration::getVertexSize(unsigned short source)
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326 | {
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327 | VertexElementList::const_iterator i, iend;
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328 | iend = mElementList.end();
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329 | size_t sz = 0;
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330 |
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331 | for (i = mElementList.begin(); i != iend; ++i)
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332 | {
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333 | if (i->getSource() == source)
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334 | {
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335 | sz += i->getSize();
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336 |
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337 | }
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338 | }
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339 | return sz;
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340 | }
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341 | //-----------------------------------------------------------------------------
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342 | VertexDeclaration* VertexDeclaration::clone(void)
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343 | {
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344 | VertexDeclaration* ret = HardwareBufferManager::getSingleton().createVertexDeclaration();
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345 |
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346 | VertexElementList::const_iterator i, iend;
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347 | iend = mElementList.end();
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348 | for (i = mElementList.begin(); i != iend; ++i)
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349 | {
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350 | ret->addElement(i->getSource(), i->getOffset(), i->getType(), i->getSemantic(), i->getIndex());
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351 | }
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352 | return ret;
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353 | }
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354 | //-----------------------------------------------------------------------------
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355 | // Sort routine for VertexElement
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356 | bool VertexDeclaration::vertexElementLess(const VertexElement& e1, const VertexElement& e2)
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357 | {
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358 | // Sort by source first
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359 | if (e1.getSource() < e2.getSource())
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360 | {
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361 | return true;
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362 | }
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363 | else if (e1.getSource() == e2.getSource())
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364 | {
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365 | // Use ordering of semantics to sort
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366 | if (e1.getSemantic() < e2.getSemantic())
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367 | {
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368 | return true;
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369 | }
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370 | else if (e1.getSemantic() == e2.getSemantic())
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371 | {
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372 | // Use index to sort
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373 | if (e1.getIndex() < e2.getIndex())
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374 | {
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375 | return true;
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376 | }
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377 | }
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378 | }
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379 | return false;
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380 | }
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381 | void VertexDeclaration::sort(void)
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382 | {
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383 | mElementList.sort(VertexDeclaration::vertexElementLess);
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384 | }
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385 | //-----------------------------------------------------------------------------
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386 | void VertexDeclaration::closeGapsInSource(void)
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387 | {
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388 | if (mElementList.empty())
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389 | return;
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390 |
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391 | // Sort first
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392 | sort();
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393 |
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394 | VertexElementList::iterator i, iend;
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395 | iend = mElementList.end();
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396 | unsigned short targetIdx = 0;
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397 | unsigned short lastIdx = getElement(0)->getSource();
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398 | unsigned short c = 0;
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399 | for (i = mElementList.begin(); i != iend; ++i, ++c)
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400 | {
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401 | VertexElement& elem = *i;
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402 | if (lastIdx != elem.getSource())
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403 | {
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404 | targetIdx++;
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405 | lastIdx = elem.getSource();
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406 | }
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407 | if (targetIdx != elem.getSource())
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408 | {
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409 | modifyElement(c, targetIdx, elem.getOffset(), elem.getType(),
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410 | elem.getSemantic(), elem.getIndex());
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411 | }
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412 |
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413 | }
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414 |
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415 | }
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416 | //-----------------------------------------------------------------------
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417 | VertexDeclaration* VertexDeclaration::getAutoOrganisedDeclaration(bool animated)
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418 | {
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419 | VertexDeclaration* newDecl = this->clone();
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420 | // Set all sources to the same buffer (for now)
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421 | const VertexDeclaration::VertexElementList& elems = newDecl->getElements();
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422 | VertexDeclaration::VertexElementList::const_iterator i;
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423 | unsigned short c = 0;
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424 | for (i = elems.begin(); i != elems.end(); ++i, ++c)
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425 | {
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426 | const VertexElement& elem = *i;
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427 | // Set source & offset to 0 for now, before sort
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428 | newDecl->modifyElement(c, 0, 0, elem.getType(), elem.getSemantic(), elem.getIndex());
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429 | }
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430 | newDecl->sort();
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431 | // Now sort out proper buffer assignments and offsets
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432 | size_t offset0 = 0;
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433 | size_t offset1 = 0;
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434 | c = 0;
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435 | for (i = elems.begin(); i != elems.end(); ++i, ++c)
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436 | {
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437 | const VertexElement& elem = *i;
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438 | if (animated &&
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439 | elem.getSemantic() != VES_POSITION && elem.getSemantic() != VES_NORMAL)
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440 | {
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441 | // Animated meshes have pos & norm in buffer 0, everything else in 1
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442 | newDecl->modifyElement(c, 1, offset1, elem.getType(), elem.getSemantic(), elem.getIndex());
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443 | offset1 += elem.getSize();
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444 | }
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445 | else
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446 | {
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447 | newDecl->modifyElement(c, 0, offset0, elem.getType(), elem.getSemantic(), elem.getIndex());
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448 | offset0 += elem.getSize();
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449 | }
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450 | }
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451 |
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452 | return newDecl;
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453 |
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454 |
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455 | }
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456 | //-----------------------------------------------------------------------------
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457 | unsigned short VertexDeclaration::getMaxSource(void) const
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458 | {
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459 | VertexElementList::const_iterator i, iend;
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460 | iend = mElementList.end();
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461 | unsigned short ret = 0;
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462 | for (i = mElementList.begin(); i != iend; ++i)
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463 | {
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464 | if (i->getSource() > ret)
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465 | {
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466 | ret = i->getSource();
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467 | }
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468 |
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469 | }
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470 | return ret;
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471 | }
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472 | //-----------------------------------------------------------------------------
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473 | VertexBufferBinding::VertexBufferBinding() : mHighIndex(0)
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474 | {
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475 | }
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476 | //-----------------------------------------------------------------------------
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477 | VertexBufferBinding::~VertexBufferBinding()
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478 | {
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479 | unsetAllBindings();
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480 | }
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481 | //-----------------------------------------------------------------------------
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482 | void VertexBufferBinding::setBinding(unsigned short index, HardwareVertexBufferSharedPtr buffer)
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483 | {
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484 | // NB will replace any existing buffer ptr at this index, and will thus cause
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485 | // reference count to decrement on that buffer (possibly destroying it)
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486 | mBindingMap[index] = buffer;
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487 | mHighIndex = std::max(mHighIndex, (unsigned short)(index+1));
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488 | }
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489 | //-----------------------------------------------------------------------------
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490 | void VertexBufferBinding::unsetBinding(unsigned short index)
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491 | {
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492 | VertexBufferBindingMap::iterator i = mBindingMap.find(index);
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493 | if (i == mBindingMap.end())
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494 | {
|
---|
495 | OGRE_EXCEPT(Exception::ERR_ITEM_NOT_FOUND,
|
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496 | "Cannot find buffer binding for index " + StringConverter::toString(index),
|
---|
497 | "VertexBufferBinding::unsetBinding");
|
---|
498 | }
|
---|
499 | mBindingMap.erase(i);
|
---|
500 | }
|
---|
501 | //-----------------------------------------------------------------------------
|
---|
502 | void VertexBufferBinding::unsetAllBindings(void)
|
---|
503 | {
|
---|
504 | mBindingMap.clear();
|
---|
505 | }
|
---|
506 | //-----------------------------------------------------------------------------
|
---|
507 | const VertexBufferBinding::VertexBufferBindingMap&
|
---|
508 | VertexBufferBinding::getBindings(void) const
|
---|
509 | {
|
---|
510 | return mBindingMap;
|
---|
511 | }
|
---|
512 | //-----------------------------------------------------------------------------
|
---|
513 | HardwareVertexBufferSharedPtr VertexBufferBinding::getBuffer(unsigned short index)
|
---|
514 | {
|
---|
515 | VertexBufferBindingMap::iterator i = mBindingMap.find(index);
|
---|
516 | if (i == mBindingMap.end())
|
---|
517 | {
|
---|
518 | OGRE_EXCEPT(Exception::ERR_ITEM_NOT_FOUND, "No buffer is bound to that index.",
|
---|
519 | "VertexBufferBinding::getBuffer");
|
---|
520 | }
|
---|
521 | return i->second;
|
---|
522 | }
|
---|
523 | //-----------------------------------------------------------------------------
|
---|
524 | HardwareVertexBufferSharedPtr::HardwareVertexBufferSharedPtr(HardwareVertexBuffer* buf)
|
---|
525 | : SharedPtr<HardwareVertexBuffer>(buf)
|
---|
526 | {
|
---|
527 |
|
---|
528 | }
|
---|
529 |
|
---|
530 |
|
---|
531 |
|
---|
532 |
|
---|
533 | }
|
---|