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70 lines
2.5 KiB
C++
70 lines
2.5 KiB
C++
#include <stdexcept>
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#include "OgreGpuProgram.hpp"
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#include <boost/lexical_cast.hpp>
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#include <OgreHighLevelGpuProgramManager.h>
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#include <OgreGpuProgramManager.h>
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#include <OgreVector4.h>
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namespace sh
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{
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OgreGpuProgram::OgreGpuProgram(
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GpuProgramType type,
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const std::string& compileArguments,
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const std::string& name, const std::string& profile,
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const std::string& source, const std::string& lang,
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const std::string& resourceGroup)
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: GpuProgram()
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{
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Ogre::HighLevelGpuProgramManager& mgr = Ogre::HighLevelGpuProgramManager::getSingleton();
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assert (mgr.getByName(name).isNull() && "Vertex program already exists");
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Ogre::GpuProgramType t;
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if (type == GPT_Vertex)
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t = Ogre::GPT_VERTEX_PROGRAM;
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else
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t = Ogre::GPT_FRAGMENT_PROGRAM;
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mProgram = mgr.createProgram(name, resourceGroup, lang, t);
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if (lang != "glsl")
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mProgram->setParameter("entry_point", "main");
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if (lang == "hlsl")
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mProgram->setParameter("target", profile);
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else if (lang == "cg")
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mProgram->setParameter("profiles", profile);
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mProgram->setSource(source);
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mProgram->load();
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if (mProgram.isNull() || !mProgram->isSupported())
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std::cerr << "Failed to compile shader \"" << name << "\". Consider the OGRE log for more information." << std::endl;
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}
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bool OgreGpuProgram::getSupported()
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{
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return (!mProgram.isNull() && mProgram->isSupported());
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}
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void OgreGpuProgram::setAutoConstant (const std::string& name, const std::string& autoConstantName, const std::string& extraInfo)
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{
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assert (!mProgram.isNull() && mProgram->isSupported());
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const Ogre::GpuProgramParameters::AutoConstantDefinition* d = Ogre::GpuProgramParameters::getAutoConstantDefinition(autoConstantName);
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if (!d)
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throw std::runtime_error ("can't find auto constant with name \"" + autoConstantName + "\"");
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Ogre::GpuProgramParameters::AutoConstantType t = d->acType;
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// this simplifies debugging for CG a lot.
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mProgram->getDefaultParameters()->setIgnoreMissingParams(true);
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if (d->dataType == Ogre::GpuProgramParameters::ACDT_NONE)
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mProgram->getDefaultParameters()->setNamedAutoConstant (name, t, 0);
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else if (d->dataType == Ogre::GpuProgramParameters::ACDT_INT)
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mProgram->getDefaultParameters()->setNamedAutoConstant (name, t, extraInfo == "" ? 0 : boost::lexical_cast<int>(extraInfo));
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else if (d->dataType == Ogre::GpuProgramParameters::ACDT_REAL)
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mProgram->getDefaultParameters()->setNamedAutoConstantReal (name, t, extraInfo == "" ? 0.f : boost::lexical_cast<float>(extraInfo));
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}
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}
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