# Visualization Library

A lightweight C++ OpenGL middleware for 2D/3D graphics

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# D:/VL/BuildSystem/VL_DISTRO/Visualization_Library_SDK/src/vlGraphics/RenderStateSet.cpp

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    00001 /**************************************************************************************/
    00002 /*                                                                                    */
    00003 /*  Visualization Library                                                             */
    00004 /*  http://www.visualizationlibrary.org                                               */
    00005 /*                                                                                    */
    00006 /*  Copyright (c) 2005-2010, Michele Bosi                                             */
    00007 /*  All rights reserved.                                                              */
    00008 /*                                                                                    */
    00009 /*  Redistribution and use in source and binary forms, with or without modification,  */
    00010 /*  are permitted provided that the following conditions are met:                     */
    00011 /*                                                                                    */
    00012 /*  - Redistributions of source code must retain the above copyright notice, this     */
    00013 /*  list of conditions and the following disclaimer.                                  */
    00014 /*                                                                                    */
    00015 /*  - Redistributions in binary form must reproduce the above copyright notice, this  */
    00016 /*  list of conditions and the following disclaimer in the documentation and/or       */
    00017 /*  other materials provided with the distribution.                                   */
    00018 /*                                                                                    */
    00019 /*  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND   */
    00020 /*  ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED     */
    00021 /*  WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE            */
    00022 /*  DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR  */
    00023 /*  ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES    */
    00024 /*  (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;      */
    00025 /*  LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON    */
    00026 /*  ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT           */
    00027 /*  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS     */
    00028 /*  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.                      */
    00029 /*                                                                                    */
    00030 /**************************************************************************************/
    00031
    00032 #include <vlGraphics/RenderStateSet.hpp>
    00033 #include <vlGraphics/RenderState.hpp>
    00034 #include <vlGraphics/GLSL.hpp>
    00035
    00036 using namespace vl;
    00037
    00038 //------------------------------------------------------------------------------
    00039 RenderStateSet& RenderStateSet::deepCopyFrom(const RenderStateSet& other)
    00040 {
    00041   mRenderStates = other.mRenderStates;
    00042   for(size_t i=0; i<mRenderStates.size(); ++i)
    00043     mRenderStates[i].mRS = mRenderStates[i].mRS->clone();
    00044   return *this;
    00045 }
    00046 //------------------------------------------------------------------------------
    00047 void RenderStateSet::setRenderState(RenderState* renderstate, int index)
    00048 {
    00049   if (renderstate)
    00050   {
    00051     if (renderstate->type() == RS_GLSLProgram)
    00052       mGLSLProgram = static_cast<GLSLProgram*>(renderstate);
    00053     for(unsigned i=0; i<mRenderStates.size(); ++i)
    00054     {
    00055       if (mRenderStates[i].mRS->type() == renderstate->type() && mRenderStates[i].mIndex == index)
    00056       {
    00057         mRenderStates[i].mRS = renderstate;
    00058         // mRenderStates[i].mIndex = index;
    00059         return;
    00060       }
    00061     }
    00062     mRenderStates.push_back( RenderStateSlot(renderstate, index) );
    00063   }
    00064 }
    00065 //------------------------------------------------------------------------------
    00066 RenderState* RenderStateSet::renderState( ERenderState type, int index )
    00067 {
    00068   for(unsigned i=0; i<mRenderStates.size(); ++i)
    00069     if (mRenderStates[i].mRS->type() == type && mRenderStates[i].mIndex == index)
    00070       return mRenderStates[i].mRS.get();
    00071   return NULL;
    00072 }
    00073 //------------------------------------------------------------------------------
    00074 const RenderState* RenderStateSet::renderState( ERenderState type, int index ) const
    00075 {
    00076   for(unsigned i=0; i<mRenderStates.size(); ++i)
    00077     if (mRenderStates[i].mRS->type() == type && mRenderStates[i].mIndex == index)
    00078       return mRenderStates[i].mRS.get();
    00079   return NULL;
    00080 }
    00081 //------------------------------------------------------------------------------
    00082 void RenderStateSet::eraseRenderState(ERenderState type, int index)
    00083 {
    00084   if (type == RS_GLSLProgram)
    00085     mGLSLProgram = NULL;
    00086   for(unsigned i=0; i<mRenderStates.size(); ++i)
    00087   {
    00088     if (mRenderStates[i].mRS->type() == type && (index == mRenderStates[i].mIndex || index == -1))
    00089     {
    00090       mRenderStates.erase(mRenderStates.begin() + i);
    00091       if (index == -1)
    00092         continue; // just for clarity
    00093       else
    00094         return;
    00095     }
    00096   }
    00097 }
    00098 //------------------------------------------------------------------------------

Visualization Library v2011.09.1162 Reference Documentation
Copyright 2005-2011 Michele Bosi. All rights reserved.
Updated on Thu Jan 26 2012 00:43:42.
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