1 /* 2 ----------------------------------------------------------------------------- 3 This source file is part of OGRE 4 (Object-oriented Graphics Rendering Engine) 5 For the latest info, see http://www.ogre3d.org/ 6 7 Copyright (c) 2000-2013 Torus Knot Software Ltd 8 9 Permission is hereby granted, free of charge, to any person obtaining a copy 10 of this software and associated documentation files (the "Software"), to deal 11 in the Software without restriction, including without limitation the rights 12 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 13 copies of the Software, and to permit persons to whom the Software is 14 furnished to do so, subject to the following conditions: 15 16 The above copyright notice and this permission notice shall be included in 17 all copies or substantial portions of the Software. 18 19 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 20 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 21 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 22 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 23 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 24 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 25 THE SOFTWARE. 26 ----------------------------------------------------------------------------- 27 */ 28 #include "OgreStableHeaders.h" 29 #include "OgreRectangle2D.h" 30 31 #include "OgreSimpleRenderable.h" 32 #include "OgreHardwareBufferManager.h" 33 #include "OgreCamera.h" 34 35 namespace Ogre { 36 #define POSITION_BINDING 0 37 #define NORMAL_BINDING 1 38 #define TEXCOORD_BINDING 2 39 Rectangle2D(bool includeTextureCoords,Ogre::HardwareBuffer::Usage vBufUsage)40 Rectangle2D::Rectangle2D(bool includeTextureCoords, Ogre::HardwareBuffer::Usage vBufUsage) 41 : SimpleRenderable() 42 { 43 _initRectangle2D(includeTextureCoords, vBufUsage); 44 } 45 Rectangle2D(const String & name,bool includeTextureCoords,Ogre::HardwareBuffer::Usage vBufUsage)46 Rectangle2D::Rectangle2D(const String& name, bool includeTextureCoords, Ogre::HardwareBuffer::Usage vBufUsage) 47 : SimpleRenderable(name) 48 { 49 _initRectangle2D(includeTextureCoords, vBufUsage); 50 } 51 _initRectangle2D(bool includeTextureCoords,Ogre::HardwareBuffer::Usage vBufUsage)52 void Rectangle2D::_initRectangle2D(bool includeTextureCoords, Ogre::HardwareBuffer::Usage vBufUsage) 53 { 54 // use identity projection and view matrices 55 mUseIdentityProjection = true; 56 mUseIdentityView = true; 57 58 mRenderOp.vertexData = OGRE_NEW VertexData(); 59 60 mRenderOp.indexData = 0; 61 mRenderOp.vertexData->vertexCount = 4; 62 mRenderOp.vertexData->vertexStart = 0; 63 mRenderOp.operationType = RenderOperation::OT_TRIANGLE_STRIP; 64 mRenderOp.useIndexes = false; 65 mRenderOp.useGlobalInstancingVertexBufferIsAvailable = false; 66 67 VertexDeclaration* decl = mRenderOp.vertexData->vertexDeclaration; 68 VertexBufferBinding* bind = mRenderOp.vertexData->vertexBufferBinding; 69 70 decl->addElement(POSITION_BINDING, 0, VET_FLOAT3, VES_POSITION); 71 72 73 HardwareVertexBufferSharedPtr vbuf = 74 HardwareBufferManager::getSingleton().createVertexBuffer( 75 decl->getVertexSize(POSITION_BINDING), 76 mRenderOp.vertexData->vertexCount, 77 vBufUsage); 78 79 // Bind buffer 80 bind->setBinding(POSITION_BINDING, vbuf); 81 82 decl->addElement(NORMAL_BINDING, 0, VET_FLOAT3, VES_NORMAL); 83 84 vbuf = 85 HardwareBufferManager::getSingleton().createVertexBuffer( 86 decl->getVertexSize(NORMAL_BINDING), 87 mRenderOp.vertexData->vertexCount, 88 vBufUsage); 89 90 bind->setBinding(NORMAL_BINDING, vbuf); 91 92 float *pNorm = static_cast<float*>(vbuf->lock(HardwareBuffer::HBL_DISCARD)); 93 *pNorm++ = 0.0f; 94 *pNorm++ = 0.0f; 95 *pNorm++ = 1.0f; 96 97 *pNorm++ = 0.0f; 98 *pNorm++ = 0.0f; 99 *pNorm++ = 1.0f; 100 101 *pNorm++ = 0.0f; 102 *pNorm++ = 0.0f; 103 *pNorm++ = 1.0f; 104 105 *pNorm++ = 0.0f; 106 *pNorm++ = 0.0f; 107 *pNorm++ = 1.0f; 108 109 vbuf->unlock(); 110 111 if (includeTextureCoords) 112 { 113 decl->addElement(TEXCOORD_BINDING, 0, VET_FLOAT2, VES_TEXTURE_COORDINATES); 114 115 116 HardwareVertexBufferSharedPtr tvbuf = 117 HardwareBufferManager::getSingleton().createVertexBuffer( 118 decl->getVertexSize(TEXCOORD_BINDING), 119 mRenderOp.vertexData->vertexCount, 120 vBufUsage); 121 122 // Bind buffer 123 bind->setBinding(TEXCOORD_BINDING, tvbuf); 124 125 // Set up basic tex coordinates 126 setDefaultUVs(); 127 } 128 129 // set basic white material 130 this->setMaterial("BaseWhiteNoLighting"); 131 } 132 ~Rectangle2D()133 Rectangle2D::~Rectangle2D() 134 { 135 OGRE_DELETE mRenderOp.vertexData; 136 } 137 setCorners(Real left,Real top,Real right,Real bottom,bool updateAABB)138 void Rectangle2D::setCorners(Real left, Real top, Real right, Real bottom, bool updateAABB) 139 { 140 HardwareVertexBufferSharedPtr vbuf = 141 mRenderOp.vertexData->vertexBufferBinding->getBuffer(POSITION_BINDING); 142 float* pFloat = static_cast<float*>(vbuf->lock(HardwareBuffer::HBL_DISCARD)); 143 144 *pFloat++ = left; 145 *pFloat++ = top; 146 *pFloat++ = -1; 147 148 *pFloat++ = left; 149 *pFloat++ = bottom; 150 *pFloat++ = -1; 151 152 *pFloat++ = right; 153 *pFloat++ = top; 154 *pFloat++ = -1; 155 156 *pFloat++ = right; 157 *pFloat++ = bottom; 158 *pFloat++ = -1; 159 160 vbuf->unlock(); 161 162 if(updateAABB) 163 { 164 mBox.setExtents( 165 std::min(left, right), std::min(top, bottom), 0, 166 std::max(left, right), std::max(top, bottom), 0); 167 } 168 } 169 setNormals(const Ogre::Vector3 & topLeft,const Ogre::Vector3 & bottomLeft,const Ogre::Vector3 & topRight,const Ogre::Vector3 & bottomRight)170 void Rectangle2D::setNormals(const Ogre::Vector3 &topLeft, const Ogre::Vector3 &bottomLeft, const Ogre::Vector3 &topRight, const Ogre::Vector3 &bottomRight) 171 { 172 HardwareVertexBufferSharedPtr vbuf = 173 mRenderOp.vertexData->vertexBufferBinding->getBuffer(NORMAL_BINDING); 174 float* pFloat = static_cast<float*>(vbuf->lock(HardwareBuffer::HBL_DISCARD)); 175 176 *pFloat++ = topLeft.x; 177 *pFloat++ = topLeft.y; 178 *pFloat++ = topLeft.z; 179 180 *pFloat++ = bottomLeft.x; 181 *pFloat++ = bottomLeft.y; 182 *pFloat++ = bottomLeft.z; 183 184 *pFloat++ = topRight.x; 185 *pFloat++ = topRight.y; 186 *pFloat++ = topRight.z; 187 188 *pFloat++ = bottomRight.x; 189 *pFloat++ = bottomRight.y; 190 *pFloat++ = bottomRight.z; 191 192 vbuf->unlock(); 193 } 194 setUVs(const Ogre::Vector2 & topLeft,const Ogre::Vector2 & bottomLeft,const Ogre::Vector2 & topRight,const Ogre::Vector2 & bottomRight)195 void Rectangle2D::setUVs( const Ogre::Vector2 &topLeft, const Ogre::Vector2 &bottomLeft, 196 const Ogre::Vector2 &topRight, const Ogre::Vector2 &bottomRight) 197 { 198 if( mRenderOp.vertexData->vertexDeclaration->getElementCount() <= TEXCOORD_BINDING ) 199 return; //Vertex data wasn't built with UV buffer 200 201 HardwareVertexBufferSharedPtr vbuf = 202 mRenderOp.vertexData->vertexBufferBinding->getBuffer(TEXCOORD_BINDING); 203 float* pFloat = static_cast<float*>(vbuf->lock(HardwareBuffer::HBL_DISCARD)); 204 205 *pFloat++ = topLeft.x; 206 *pFloat++ = topLeft.y; 207 208 *pFloat++ = bottomLeft.x; 209 *pFloat++ = bottomLeft.y; 210 211 *pFloat++ = topRight.x; 212 *pFloat++ = topRight.y; 213 214 *pFloat++ = bottomRight.x; 215 *pFloat++ = bottomRight.y; 216 217 vbuf->unlock(); 218 } 219 setDefaultUVs()220 void Rectangle2D::setDefaultUVs() 221 { 222 setUVs( Vector2::ZERO, Vector2::UNIT_Y, Vector2::UNIT_X, Vector2::UNIT_SCALE ); 223 } 224 225 // Override this method to prevent parent transforms (rotation,translation,scale) getWorldTransforms(Matrix4 * xform) const226 void Rectangle2D::getWorldTransforms( Matrix4* xform ) const 227 { 228 // return identity matrix to prevent parent transforms 229 *xform = Matrix4::IDENTITY; 230 } 231 232 233 } 234 235