# 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/DrawCall.hpp

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    00001 /**************************************************************************************/
    00002 /*                                                                                    */
    00003 /*  Visualization Library                                                             */
    00004 /*  http://www.visualizationlibrary.org                                               */
    00005 /*                                                                                    */
    00006 /*  Copyright (c) 2005-2011, 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 #ifndef DrawCommand_INCLUDE_ONCE
    00033 #define DrawCommand_INCLUDE_ONCE
    00034
    00035 #include <vlGraphics/Array.hpp>
    00036 #include <vlGraphics/TriangleIterator.hpp>
    00037 #include <vlGraphics/IndexIterator.hpp>
    00038 #include <vlGraphics/PatchParameter.hpp>
    00039
    00040 namespace vl
    00041 {
    00042   //------------------------------------------------------------------------------
    00043   // DrawCall
    00044   //------------------------------------------------------------------------------
    00090   class DrawCall: public Object
    00091   {
    00092     VL_INSTRUMENT_ABSTRACT_CLASS(vl::DrawCalls, Object)
    00093
    00094   public:
    00096     DrawCall(): mType(PT_TRIANGLES), mEnabled(true) {}
    00097
    00099     DrawCall& operator=(const DrawCall& other)
    00100     {
    00101       mType      = other.mType;
    00102       mEnabled   = other.mEnabled;
    00103       return *this;
    00104     }
    00105
    00107     void setPrimitiveType(EPrimitiveType type) { mType = type; }
    00108
    00110     EPrimitiveType primitiveType() const { return mType; }
    00111
    00113     virtual void render(bool use_bo = true) const = 0;
    00114
    00116     virtual ref<DrawCall> clone() const = 0;
    00117
    00119     virtual void updateDirtyBufferObject(EBufferObjectUpdateMode) = 0;
    00120
    00122     virtual void deleteBufferObject() = 0;
    00123
    00125     void setEnabled(bool enable) { mEnabled = enable; }
    00126
    00128     bool isEnabled() const { return mEnabled; }
    00129
    00134     virtual TriangleIterator triangleIterator() const = 0;
    00135
    00139     virtual IndexIterator indexIterator() const = 0;
    00140
    00142     u32 countIndices() const
    00143     {
    00144       u32 count = 0;
    00145       for( IndexIterator it = indexIterator(); it.hasNext(); it.next() )
    00146         ++count;
    00147       return count;
    00148     }
    00149
    00151     u32 countTriangles() const
    00152     {
    00153       u32 count = 0;
    00154       for( TriangleIterator it = triangleIterator(); it.hasNext(); it.next() )
    00155         ++count;
    00156       return count;
    00157     }
    00158
    00160     virtual int instances() const { return 1; }
    00161
    00163     virtual bool primitiveRestartEnabled() const { return false; }
    00164
    00166     virtual unsigned int primitiveRestartIndex() { return 0; }
    00167
    00169     void setPatchParameter(PatchParameter* patch_param) { mPatchParameter = patch_param; }
    00170
    00172     PatchParameter* patchParameter() { return mPatchParameter.get(); }
    00173
    00175     const PatchParameter* patchParameter() const { return mPatchParameter.get(); }
    00176
    00177   protected:
    00178     void applyPatchParameters() const
    00179     {
    00180       if (mType == PT_PATCHES && mPatchParameter)
    00181         mPatchParameter->apply();
    00182
    00183       if (mPatchParameter && mType != PT_PATCHES)
    00184       {
    00185         vl::Log::warning("PatchParameter used with non PT_PATCHES draw call!\n");
    00186       }
    00187       else
    00188       if (!mPatchParameter && mType == PT_PATCHES)
    00189       {
    00190         vl::Log::warning("No PatchParameter supplied while using PT_PATCHES draw call!\n");
    00191       }
    00192     }
    00193
    00194   protected:
    00195       ref<PatchParameter> mPatchParameter;
    00196       EPrimitiveType mType;
    00197       bool mEnabled;
    00198   };
    00199 }
    00200
    00201 #endif

Visualization Library v2011.09.1162 Reference Documentation
Copyright 2005-2011 Michele Bosi. All rights reserved.
Updated on Thu Jan 26 2012 00:43:37.
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