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 "OgreRenderTarget.h"
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27 | #include "OgreStringConverter.h"
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28 |
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29 | #include "OgreViewport.h"
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30 | #include "OgreException.h"
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31 | #include "OgreLogManager.h"
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32 | #include "OgreRenderTargetListener.h"
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33 | #include "OgrePlatformManager.h"
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34 | #include "OgreRoot.h"
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35 |
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36 | namespace Ogre {
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37 |
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38 | RenderTarget::RenderTarget()
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39 | :mPriority(OGRE_DEFAULT_RT_GROUP),
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40 | mActive(true),
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41 | mAutoUpdate(true)
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42 | {
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43 | mTimer = Root::getSingleton().getTimer();
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44 | resetStatistics();
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45 | }
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46 |
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47 | RenderTarget::~RenderTarget()
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48 | {
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49 | // Delete viewports
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50 | for (ViewportList::iterator i = mViewportList.begin();
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51 | i != mViewportList.end(); ++i)
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52 | {
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53 | delete (*i).second;
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54 | }
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55 |
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56 |
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57 | // Write closing message
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58 | StringUtil::StrStreamType msg;
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59 | msg << "Render Target '" << mName << "' "
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60 | << "Average FPS: " << mStats.avgFPS << " "
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61 | << "Best FPS: " << mStats.bestFPS << " "
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62 | << "Worst FPS: " << mStats.worstFPS;
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63 | LogManager::getSingleton().logMessage(msg.str());
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64 |
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65 | }
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66 |
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67 | const String& RenderTarget::getName(void) const
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68 | {
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69 | return mName;
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70 | }
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71 |
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72 |
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73 | void RenderTarget::getMetrics(unsigned int& width, unsigned int& height, unsigned int& colourDepth)
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74 | {
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75 | width = mWidth;
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76 | height = mHeight;
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77 | colourDepth = mColourDepth;
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78 | }
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79 |
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80 | unsigned int RenderTarget::getWidth(void) const
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81 | {
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82 | return mWidth;
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83 | }
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84 | unsigned int RenderTarget::getHeight(void) const
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85 | {
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86 | return mHeight;
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87 | }
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88 | unsigned int RenderTarget::getColourDepth(void) const
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89 | {
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90 | return mColourDepth;
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91 | }
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92 |
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93 | void RenderTarget::update(void)
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94 | {
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95 |
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96 | // notify listeners (pre)
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97 | firePreUpdate();
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98 |
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99 | mStats.triangleCount = 0;
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100 | // Go through viewports in Z-order
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101 | // Tell each to refresh
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102 | ViewportList::iterator it = mViewportList.begin();
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103 | while (it != mViewportList.end())
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104 | {
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105 | fireViewportPreUpdate((*it).second);
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106 | (*it).second->update();
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107 | mStats.triangleCount += (*it).second->_getNumRenderedFaces();
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108 | fireViewportPostUpdate((*it).second);
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109 | ++it;
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110 | }
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111 |
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112 | // notify listeners (post)
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113 | firePostUpdate();
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114 |
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115 | // Update statistics (always on top)
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116 | updateStats();
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117 |
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118 |
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119 | }
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120 |
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121 | Viewport* RenderTarget::addViewport(Camera* cam, int ZOrder, float left, float top ,
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122 | float width , float height)
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123 | {
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124 | // Check no existing viewport with this Z-order
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125 | ViewportList::iterator it = mViewportList.find(ZOrder);
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126 |
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127 | if (it != mViewportList.end())
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128 | {
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129 | StringUtil::StrStreamType str;
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130 | str << "Can't create another viewport for "
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131 | << mName << " with Z-Order " << ZOrder
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132 | << " because a viewport exists with this Z-Order already.";
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133 | OGRE_EXCEPT(9999, str.str(), "RenderTarget::addViewport");
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134 | }
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135 | // Add viewport to list
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136 | // Order based on Z-Order
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137 | Viewport* vp = new Viewport(cam, this, left, top, width, height, ZOrder);
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138 |
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139 | mViewportList.insert(ViewportList::value_type(ZOrder, vp));
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140 |
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141 | fireViewportAdded(vp);
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142 |
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143 | return vp;
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144 | }
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145 | //-----------------------------------------------------------------------
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146 | void RenderTarget::removeViewport(int ZOrder)
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147 | {
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148 | ViewportList::iterator it = mViewportList.find(ZOrder);
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149 |
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150 | if (it != mViewportList.end())
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151 | {
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152 | fireViewportRemoved((*it).second);
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153 | delete (*it).second;
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154 | mViewportList.erase(ZOrder);
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155 | }
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156 | }
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157 |
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158 | void RenderTarget::removeAllViewports(void)
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159 | {
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160 |
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161 |
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162 | for (ViewportList::iterator it = mViewportList.begin(); it != mViewportList.end(); ++it)
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163 | {
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164 | delete (*it).second;
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165 | }
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166 |
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167 | mViewportList.clear();
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168 |
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169 | }
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170 |
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171 | void RenderTarget::getStatistics(float& lastFPS, float& avgFPS,
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172 | float& bestFPS, float& worstFPS) const
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173 | {
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174 |
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175 | // Note - the will have been updated by the last render
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176 | lastFPS = mStats.lastFPS;
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177 | avgFPS = mStats.avgFPS;
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178 | bestFPS = mStats.bestFPS;
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179 | worstFPS = mStats.worstFPS;
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180 |
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181 |
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182 | }
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183 |
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184 | const RenderTarget::FrameStats& RenderTarget::getStatistics(void) const
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185 | {
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186 | return mStats;
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187 | }
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188 |
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189 | float RenderTarget::getLastFPS() const
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190 | {
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191 | return mStats.lastFPS;
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192 | }
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193 | float RenderTarget::getAverageFPS() const
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194 | {
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195 | return mStats.avgFPS;
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196 | }
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197 | float RenderTarget::getBestFPS() const
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198 | {
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199 | return mStats.bestFPS;
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200 | }
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201 | float RenderTarget::getWorstFPS() const
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202 | {
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203 | return mStats.worstFPS;
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204 | }
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205 |
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206 | size_t RenderTarget::getTriangleCount(void) const
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207 | {
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208 | return mStats.triangleCount;
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209 | }
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210 |
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211 | float RenderTarget::getBestFrameTime() const
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212 | {
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213 | return mStats.bestFrameTime;
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214 | }
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215 |
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216 | float RenderTarget::getWorstFrameTime() const
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217 | {
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218 | return mStats.worstFrameTime;
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219 | }
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220 |
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221 | void RenderTarget::resetStatistics(void)
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222 | {
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223 | mStats.avgFPS = 0.0;
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224 | mStats.bestFPS = 0.0;
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225 | mStats.lastFPS = 0.0;
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226 | mStats.worstFPS = 999.0;
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227 | mStats.triangleCount = 0;
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228 | mStats.bestFrameTime = 999999;
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229 | mStats.worstFrameTime = 0;
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230 |
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231 | mLastTime = mTimer->getMilliseconds();
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232 | mLastSecond = mLastTime;
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233 | mFrameCount = 0;
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234 | }
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235 |
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236 | void RenderTarget::updateStats(void)
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237 | {
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238 | ++mFrameCount;
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239 | unsigned long thisTime = mTimer->getMilliseconds();
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240 |
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241 | // check frame time
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242 | unsigned long frameTime = thisTime - mLastTime ;
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243 | mLastTime = thisTime ;
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244 |
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245 | mStats.bestFrameTime = std::min(mStats.bestFrameTime, frameTime);
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246 | mStats.worstFrameTime = std::max(mStats.worstFrameTime, frameTime);
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247 |
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248 | // check if new second (update only once per second)
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249 | if (thisTime - mLastSecond > 1000)
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250 | {
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251 | // new second - not 100% precise
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252 | mStats.lastFPS = (float)mFrameCount / (float)(thisTime - mLastSecond) * 1000.0;
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253 |
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254 | if (mStats.avgFPS == 0)
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255 | mStats.avgFPS = mStats.lastFPS;
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256 | else
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257 | mStats.avgFPS = (mStats.avgFPS + mStats.lastFPS) / 2; // not strictly correct, but good enough
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258 |
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259 | mStats.bestFPS = std::max(mStats.bestFPS, mStats.lastFPS);
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260 | mStats.worstFPS = std::min(mStats.worstFPS, mStats.lastFPS);
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261 |
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262 | mLastSecond = thisTime ;
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263 | mFrameCount = 0;
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264 |
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265 | }
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266 |
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267 | }
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268 |
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269 | void RenderTarget::getCustomAttribute(const String& name, void* pData)
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270 | {
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271 | OGRE_EXCEPT(Exception::ERR_INVALIDPARAMS, "Attribute not found.", "RenderTarget::getCustomAttribute");
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272 | }
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273 | //-----------------------------------------------------------------------
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274 | void RenderTarget::setDebugText(const String& text)
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275 | {
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276 | mDebugText = text;
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277 | }
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278 | //-----------------------------------------------------------------------
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279 | const String & RenderTarget::getDebugText() const
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280 | {
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281 | return mDebugText;
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282 | }
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283 | //-----------------------------------------------------------------------
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284 | void RenderTarget::addListener(RenderTargetListener* listener)
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285 | {
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286 | mListeners.push_back(listener);
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287 | }
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288 | //-----------------------------------------------------------------------
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289 | void RenderTarget::removeListener(RenderTargetListener* listener)
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290 | {
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291 | RenderTargetListenerList::iterator i;
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292 | for (i = mListeners.begin(); i != mListeners.end(); ++i)
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293 | {
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294 | if (*i == listener)
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295 | {
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296 | mListeners.erase(i);
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297 | break;
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298 | }
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299 | }
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300 |
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301 | }
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302 | //-----------------------------------------------------------------------
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303 | void RenderTarget::removeAllListeners(void)
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304 | {
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305 | mListeners.clear();
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306 | }
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307 | //-----------------------------------------------------------------------
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308 | void RenderTarget::firePreUpdate(void)
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309 | {
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310 | RenderTargetEvent evt;
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311 | evt.source = this;
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312 |
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313 | RenderTargetListenerList::iterator i, iend;
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314 | i = mListeners.begin();
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315 | iend = mListeners.end();
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316 | for(; i != iend; ++i)
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317 | {
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318 | (*i)->preRenderTargetUpdate(evt);
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319 | }
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320 |
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321 |
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322 | }
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323 | //-----------------------------------------------------------------------
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324 | void RenderTarget::firePostUpdate(void)
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325 | {
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326 | RenderTargetEvent evt;
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327 | evt.source = this;
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328 |
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329 | RenderTargetListenerList::iterator i, iend;
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330 | i = mListeners.begin();
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331 | iend = mListeners.end();
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332 | for(; i != iend; ++i)
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333 | {
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334 | (*i)->postRenderTargetUpdate(evt);
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335 | }
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336 | }
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337 | //-----------------------------------------------------------------------
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338 | unsigned short RenderTarget::getNumViewports(void) const
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339 | {
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340 | return (unsigned short)mViewportList.size();
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341 |
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342 | }
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343 | //-----------------------------------------------------------------------
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344 | Viewport* RenderTarget::getViewport(unsigned short index)
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345 | {
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346 | assert (index < mViewportList.size() && "Index out of bounds");
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347 |
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348 | ViewportList::iterator i = mViewportList.begin();
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349 | while (index--)
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350 | ++i;
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351 | return i->second;
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352 | }
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353 | //-----------------------------------------------------------------------
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354 | bool RenderTarget::isActive() const
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355 | {
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356 | return mActive;
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357 | }
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358 | //-----------------------------------------------------------------------
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359 | void RenderTarget::setActive( bool state )
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360 | {
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361 | mActive = state;
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362 | }
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363 | //-----------------------------------------------------------------------
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364 | void RenderTarget::fireViewportPreUpdate(Viewport* vp)
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365 | {
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366 | RenderTargetViewportEvent evt;
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367 | evt.source = vp;
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368 |
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369 | RenderTargetListenerList::iterator i, iend;
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370 | i = mListeners.begin();
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371 | iend = mListeners.end();
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372 | for(; i != iend; ++i)
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373 | {
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374 | (*i)->preViewportUpdate(evt);
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375 | }
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376 | }
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377 | //-----------------------------------------------------------------------
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378 | void RenderTarget::fireViewportPostUpdate(Viewport* vp)
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379 | {
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380 | RenderTargetViewportEvent evt;
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381 | evt.source = vp;
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382 |
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383 | RenderTargetListenerList::iterator i, iend;
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384 | i = mListeners.begin();
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385 | iend = mListeners.end();
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386 | for(; i != iend; ++i)
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387 | {
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388 | (*i)->postViewportUpdate(evt);
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389 | }
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390 | }
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391 | //-----------------------------------------------------------------------
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392 | void RenderTarget::fireViewportAdded(Viewport* vp)
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393 | {
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394 | RenderTargetViewportEvent evt;
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395 | evt.source = vp;
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396 |
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397 | RenderTargetListenerList::iterator i, iend;
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398 | i = mListeners.begin();
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399 | iend = mListeners.end();
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400 | for(; i != iend; ++i)
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401 | {
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402 | (*i)->viewportAdded(evt);
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403 | }
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404 | }
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405 | //-----------------------------------------------------------------------
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406 | void RenderTarget::fireViewportRemoved(Viewport* vp)
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407 | {
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408 | RenderTargetViewportEvent evt;
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409 | evt.source = vp;
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410 |
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411 | RenderTargetListenerList::iterator i, iend;
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412 | i = mListeners.begin();
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413 | iend = mListeners.end();
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414 | for(; i != iend; ++i)
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415 | {
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416 | (*i)->viewportRemoved(evt);
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417 | }
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418 | }
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419 | //-----------------------------------------------------------------------
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420 | String RenderTarget::writeContentsToTimestampedFile(const String& filenamePrefix, const String& filenameSuffix)
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421 | {
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422 | struct tm *pTime;
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423 | time_t ctTime; time(&ctTime);
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424 | pTime = localtime( &ctTime );
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425 | std::ostringstream oss;
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426 | oss << std::setw(2) << std::setfill('0') << (pTime->tm_mon + 1)
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427 | << std::setw(2) << std::setfill('0') << pTime->tm_mday
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428 | << std::setw(2) << std::setfill('0') << (pTime->tm_year + 1900)
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429 | << "_" << std::setw(2) << std::setfill('0') << pTime->tm_hour
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430 | << std::setw(2) << std::setfill('0') << pTime->tm_min
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431 | << std::setw(2) << std::setfill('0') << pTime->tm_sec
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432 | << std::setw(3) << std::setfill('0') << (mTimer->getMilliseconds() % 1000);
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433 | String filename = filenamePrefix + String(oss.str()) + filenameSuffix;
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434 | writeContentsToFile(filename);
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435 | return filename;
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436 |
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437 | }
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438 | //-----------------------------------------------------------------------
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439 | void RenderTarget::_notifyCameraRemoved(const Camera* cam)
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440 | {
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441 | ViewportList::iterator i, iend;
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442 | iend = mViewportList.end();
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443 | for (i = mViewportList.begin(); i != iend; ++i)
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444 | {
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445 | Viewport* v = i->second;
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446 | if (v->getCamera() == cam)
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447 | {
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448 | // disable camera link
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449 | v->setCamera(0);
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450 | }
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451 | }
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452 | }
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453 | //-----------------------------------------------------------------------
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454 | void RenderTarget::setAutoUpdated(bool autoup)
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455 | {
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456 | mAutoUpdate = autoup;
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457 | }
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458 | //-----------------------------------------------------------------------
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459 | bool RenderTarget::isAutoUpdated(void) const
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460 | {
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461 | return mAutoUpdate;
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462 | }
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463 | //-----------------------------------------------------------------------
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464 | bool RenderTarget::isPrimary(void) const
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465 | {
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466 | // RenderWindow will override and return true for the primary window
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467 | return false;
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468 | }
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469 | //-----------------------------------------------------------------------
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470 | RenderTarget::Impl *RenderTarget::_getImpl()
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471 | {
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472 | return 0;
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473 | }
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474 |
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475 | }
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