/* ----------------------------------------------------------------------------- This source file is part of OGRE (Object-oriented Graphics Rendering Engine) For the latest info, see http://www.ogre3d.org Copyright (c) 2000-2011 Torus Knot Software Ltd Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. ----------------------------------------------------------------------------- */ #ifndef __GpuProgram_H_ #define __GpuProgram_H_ // Precompiler options #include "CmPrerequisites.h" #include "CmDrawOps.h" #include "CmGpuProgramParams.h" #include "CmResource.h" #include "CmGpuParamDesc.h" namespace CamelotFramework { /** \addtogroup Core * @{ */ /** \addtogroup Resources * @{ */ /** Enumerates the types of programs which can run on the GPU. */ enum GpuProgramType { GPT_VERTEX_PROGRAM, GPT_FRAGMENT_PROGRAM, GPT_GEOMETRY_PROGRAM, GPT_DOMAIN_PROGRAM, GPT_HULL_PROGRAM, GPT_COMPUTE_PROGRAM }; enum GpuProgramProfile { GPP_NONE, GPP_PS_1_1, GPP_PS_1_2, GPP_PS_1_3, GPP_PS_1_4, GPP_PS_2_0, GPP_PS_2_x, GPP_PS_2_a, GPP_PS_2_b, GPP_PS_3_0, GPP_PS_3_x, GPP_PS_4_0, GPP_PS_4_1, GPP_PS_5_0, GPP_VS_1_1, GPP_VS_2_0, GPP_VS_2_x, GPP_VS_2_a, GPP_VS_3_0, GPP_VS_4_0, GPP_VS_4_1, GPP_VS_5_0, GPP_GS_4_0, GPP_GS_4_1, GPP_GS_5_0, GPP_HS_5_0, GPP_DS_5_0, GPP_CS_5_0 }; /** Defines a program which runs on the GPU such as a vertex or fragment program. @remarks This class defines the low-level program in assembler code, the sort used to directly assemble into machine instructions for the GPU to execute. By nature, this means that the assembler source is rendersystem specific, which is why this is an abstract class - real instances are created through the RenderSystem. If you wish to use higher level shading languages like HLSL and Cg, you need to use the HighLevelGpuProgram class instead. */ class CM_EXPORT GpuProgram : public Resource { public: virtual ~GpuProgram(); /** Gets the syntax code for this program e.g. arbvp1, fp20, vs_1_1 etc */ virtual const String& getSyntaxCode(void) const { return mSyntaxCode; } /** Gets the assembler source for this program. */ virtual const String& getSource(void) const { return mSource; } /// Get the program type virtual GpuProgramType getType(void) const { return mType; } virtual GpuProgramProfile getProfile() const { return mProfile; } virtual const String& getEntryPoint() const { return mEntryPoint; } /** Returns the GpuProgram which should be bound to the pipeline. @remarks This method is simply to allow some subclasses of GpuProgram to delegate the program which is bound to the pipeline to a delegate, if required. */ virtual GpuProgramPtr getBindingDelegate(void) { return std::static_pointer_cast(getThisPtr()); } /** Returns whether this program can be supported on the current renderer and hardware. */ virtual bool isSupported(void) const; /** Sets whether this geometry program requires adjacency information from the input primitives. */ virtual void setAdjacencyInfoRequired(bool r) { mNeedsAdjacencyInfo = r; } /** Returns whether this geometry program requires adjacency information from the input primitives. */ virtual bool isAdjacencyInfoRequired(void) const { return mNeedsAdjacencyInfo; } /** Creates a new parameters object compatible with this program definition. @remarks It is recommended that you use this method of creating parameters objects rather than going direct to GpuProgramManager, because this method will populate any implementation-specific extras (like named parameters) where they are appropriate. */ virtual GpuParamsPtr createParameters(); const GpuParamDesc& getParamDesc() const { return mParametersDesc; } /** Returns a string that specifies the language of the gpu programs as specified in a material script. ie: asm, cg, hlsl, glsl */ virtual const String& getLanguage(void) const; protected: friend class GpuProgramManager; GpuProgram(const String& source, const String& entryPoint, const String& language, GpuProgramType gptype, GpuProgramProfile profile, const Vector::type* includes, bool isAdjacencyInfoRequired = false); /** Internal method returns whether required capabilities for this program is supported. */ bool isRequiredCapabilitiesSupported(void) const; /// @copydoc Resource::calculateSize size_t calculateSize(void) const { return 0; } // TODO protected: /// The type of the program GpuProgramType mType; /// Does this (geometry) program require adjacency information? bool mNeedsAdjacencyInfo; /// Name of the shader entry method String mEntryPoint; /// Shader profiler that we are targeting (e.g. vs_1_1, etc.). Make sure profile matches the type. GpuProgramProfile mProfile; /// The assembler source of the program (may be blank until file loaded) String mSource; /// Syntax code e.g. arbvp1, vs_2_0 etc String mSyntaxCode; /** * @brief Contains information about all parameters in a shader. */ GpuParamDesc mParametersDesc; /************************************************************************/ /* SERIALIZATION */ /************************************************************************/ public: friend class GpuProgramRTTI; static RTTITypeBase* getRTTIStatic(); virtual RTTITypeBase* getRTTI() const; }; /** @} */ } #endif