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) 2000-2014 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 29 #ifndef __GLGpuProgram_H__ 30 #define __GLGpuProgram_H__ 31 32 #include "OgreGLPrerequisites.h" 33 #include "OgreGpuProgram.h" 34 #include "OgreHardwareVertexBuffer.h" 35 36 namespace Ogre { 37 38 /** Generalised low-level GL program, can be applied to multiple types (eg ARB and NV) */ 39 class _OgreGLExport GLGpuProgram : public GpuProgram 40 { 41 public: 42 GLGpuProgram(ResourceManager* creator, const String& name, ResourceHandle handle, 43 const String& group, bool isManual = false, ManualResourceLoader* loader = 0); 44 virtual ~GLGpuProgram(); 45 46 /// Execute the binding functions for this program bindProgram(void)47 virtual void bindProgram(void) {} 48 /// Execute the binding functions for this program unbindProgram(void)49 virtual void unbindProgram(void) {} 50 51 /// Execute the param binding functions for this program bindProgramParameters(GpuProgramParametersSharedPtr params,uint16 mask)52 virtual void bindProgramParameters(GpuProgramParametersSharedPtr params, uint16 mask) {} 53 /// Bind just the pass iteration parameters bindProgramPassIterationParameters(GpuProgramParametersSharedPtr params)54 virtual void bindProgramPassIterationParameters(GpuProgramParametersSharedPtr params) {} 55 56 /// @copydoc Resource::calculateSize 57 virtual size_t calculateSize(void) const; 58 59 /** Test whether attribute index for a given semantic is valid. 60 */ 61 virtual bool isAttributeValid(VertexElementSemantic semantic, uint index); 62 63 protected: 64 /** Overridden from GpuProgram, do nothing */ loadFromSource(void)65 void loadFromSource(void) {} 66 /// @copydoc Resource::unloadImpl unloadImpl(void)67 void unloadImpl(void) {} 68 69 GLuint mProgramID; 70 }; 71 72 /** Specialisation of the GL low-level program for ARB programs. */ 73 class _OgreGLExport GLArbGpuProgram : public GLGpuProgram 74 { 75 public: 76 GLArbGpuProgram(ResourceManager* creator, const String& name, ResourceHandle handle, 77 const String& group, bool isManual = false, ManualResourceLoader* loader = 0); 78 virtual ~GLArbGpuProgram(); 79 80 /// Execute the binding functions for this program 81 void bindProgram(void); 82 /// Execute the unbinding functions for this program 83 void unbindProgram(void); 84 /// Execute the param binding functions for this program 85 void bindProgramParameters(GpuProgramParametersSharedPtr params, uint16 mask); 86 /// Bind just the pass iteration parameters 87 void bindProgramPassIterationParameters(GpuProgramParametersSharedPtr params); 88 89 /// Get the GL type for the program 90 GLenum getProgramType(void) const; 91 92 protected: 93 void loadFromSource(void); 94 /// @copydoc Resource::unloadImpl 95 void unloadImpl(void); 96 97 }; 98 99 100 101 } // namespace Ogre 102 103 #endif // __GLGpuProgram_H__ 104