OgreGLSLLinkProgram.h
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00001 /*
00002 -----------------------------------------------------------------------------
00003 This source file is part of OGRE
00004 (Object-oriented Graphics Rendering Engine)
00005 For the latest info, see http://www.ogre3d.org/
00006 
00007 Copyright (c) 2000-2012 Torus Knot Software Ltd
00008 
00009 Permission is hereby granted, free of charge, to any person obtaining a copy
00010 of this software and associated documentation files (the "Software"), to deal
00011 in the Software without restriction, including without limitation the rights
00012 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00013 copies of the Software, and to permit persons to whom the Software is
00014 furnished to do so, subject to the following conditions:
00015 
00016 The above copyright notice and this permission notice shall be included in
00017 all copies or substantial portions of the Software.
00018 
00019 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00020 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00021 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
00022 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00023 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00024 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
00025 THE SOFTWARE.
00026 -----------------------------------------------------------------------------
00027 */
00028 #ifndef __GLSLLinkProgram_H__
00029 #define __GLSLLinkProgram_H__
00030 
00031 #include "OgreGLPrerequisites.h"
00032 #include "OgreGpuProgram.h"
00033 #include "OgreHardwareVertexBuffer.h"
00034 
00035 namespace Ogre {
00037     struct GLUniformReference
00038     {
00040         GLint  mLocation;
00042         GpuProgramType mSourceProgType;
00044         const GpuConstantDefinition* mConstantDef;
00045     };
00046 
00047     typedef vector<GLUniformReference>::type GLUniformReferenceList;
00048     typedef GLUniformReferenceList::iterator GLUniformReferenceIterator;
00049 
00054     class _OgreGLExport GLSLLinkProgram
00055     {
00056     private:
00058         GLUniformReferenceList mGLUniformReferences;
00059 
00061         GLSLGpuProgram* mVertexProgram;
00063         GLSLGpuProgram* mGeometryProgram;
00065         GLSLGpuProgram* mFragmentProgram;
00066 
00068         bool        mUniformRefsBuilt;
00070         GLhandleARB mGLHandle;
00072         GLint       mLinked;
00074         bool        mTriedToLinkAndFailed;
00076         bool mSkeletalAnimation;
00077 
00079         void buildGLUniformReferences(void);
00081         void extractAttributes(void);
00082 
00083         typedef set<GLuint>::type AttributeSet;
00085         AttributeSet mValidAttributes;
00086 
00088         struct CustomAttribute
00089         {
00090             String name;
00091             GLuint attrib;
00092             CustomAttribute(const String& _name, GLuint _attrib)
00093                 :name(_name), attrib(_attrib) {}
00094         };
00095 
00096         static CustomAttribute msCustomAttributes[];
00097 
00098         String getCombinedName();       
00100         void compileAndLink();
00102         void getMicrocodeFromCache();
00103     public:
00105         GLSLLinkProgram(GLSLGpuProgram* vertexProgram, GLSLGpuProgram* geometryProgram, GLSLGpuProgram* fragmentProgram);
00106         ~GLSLLinkProgram(void);
00107 
00111         void activate(void);
00112 
00116         void updateUniforms(GpuProgramParametersSharedPtr params, uint16 mask, GpuProgramType fromProgType);
00120         void updatePassIterationUniforms(GpuProgramParametersSharedPtr params);
00122         GLhandleARB getGLHandle(void) const { return mGLHandle; }
00129         void setSkeletalAnimationIncluded(bool included) 
00130         { mSkeletalAnimation = included; }
00131 
00138         bool isSkeletalAnimationIncluded(void) const { return mSkeletalAnimation; }
00139 
00141         GLuint getAttributeIndex(VertexElementSemantic semantic, uint index);
00143         bool isAttributeValid(VertexElementSemantic semantic, uint index);
00144 
00145     };
00146 
00147 }
00148 
00149 #endif // __GLSLLinkProgram_H__

Copyright © 2012 Torus Knot Software Ltd
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This work is licensed under a Creative Commons Attribution-ShareAlike 3.0 Unported License.
Last modified Fri May 25 2012 21:48:50