Commit 609563e6 authored by Jakob Weiss's avatar Jakob Weiss
Browse files

Merge branch '12-Compute-Shader-Support' into 'campvis-nx' 

Intermediate Commit of Issue #12 "Create Compute Shader Support"

Intermediate commit of working feature for CS support - should be extended to handle proper support though..

See merge request !1
parents a23b1e70 445c22ba

core/datastructures/imagerepresentationconversioncore.h

+1 −1
Original line number Diff line number Diff line
@@ -98,7 +98,7 @@ namespace campvis { 
                // converting from GL representation

                GenericImageRepresentationLocal<BASETYPE, NUMCHANNELS>* toReturn = nullptr;

                GLJobProc.enqueueJobBlocking([&]() {

                    if (cgt::Texture::calcMatchingDataType(tester->getTexture()->getInternalFormat()) != TypeTraits<BASETYPE, NUMCHANNELS>::glDataType)

                    if (cgt::Texture::calcMatchingPixelDataType(tester->getTexture()->getInternalFormat()) != TypeTraits<BASETYPE, NUMCHANNELS>::glDataType)

                        LDEBUGC("CAMPVis.core.datastructures.GenericLocalConversion", "Performing conversion between data types, you may lose information or the resulting data may show other unexpected features.");



                    WeaklyTypedPointer wtp = tester->getWeaklyTypedPointerConvert(TypeTraits<BASETYPE, NUMCHANNELS>::glDataType);

core/datastructures/imagerepresentationgl.cpp

+3 −3
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@@ -201,15 +201,15 @@ namespace campvis { 
    }



    const WeaklyTypedPointer ImageRepresentationGL::getWeaklyTypedPointerCopy() const {

        GLint format = cgt::Texture::calcMatchingFormat(_texture->getInternalFormat());

        GLenum dataType = cgt::Texture::calcMatchingDataType(_texture->getInternalFormat());

        GLint format = cgt::Texture::calcMatchingPixelFormat(_texture->getInternalFormat());

        GLenum dataType = cgt::Texture::calcMatchingPixelDataType(_texture->getInternalFormat());

        GLubyte* data = _texture->downloadTextureToBuffer(format, dataType);



        return WeaklyTypedPointer(WeaklyTypedPointer::baseType(dataType), _texture->getNumChannels(), data);

    }



    const WeaklyTypedPointer ImageRepresentationGL::getWeaklyTypedPointerConvert(GLenum dataType) const {

        GLint format = cgt::Texture::calcMatchingFormat(_texture->getInternalFormat());

        GLint format = cgt::Texture::calcMatchingPixelFormat(_texture->getInternalFormat());

        GLubyte* data = _texture->downloadTextureToBuffer(format, dataType);



        return WeaklyTypedPointer(WeaklyTypedPointer::baseType(dataType), _texture->getNumChannels(), data);

core/tools/cshelper.cpp

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+50 −0
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// ================================================================================================

// 

// This file is part of the CAMPVis Software Framework.

// 

// If not explicitly stated otherwise: Copyright (C) 2012-2015, all rights reserved,

//      Christian Schulte zu Berge <christian.szb@in.tum.de>

//      Chair for Computer Aided Medical Procedures

//      Technische Universitaet Muenchen

//      Boltzmannstr. 3, 85748 Garching b. Muenchen, Germany

// 

// For a full list of authors and contributors, please refer to the file "AUTHORS.txt".

// 

// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file 

// except in compliance with the License. You may obtain a copy of the License at

// 

// http://www.apache.org/licenses/LICENSE-2.0

// 

// Unless required by applicable law or agreed to in writing, software distributed under the 

// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, 

// either express or implied. See the License for the specific language governing permissions 

// and limitations under the License.

// 

// ================================================================================================



// (c) 2016 Jakob Weiss <jakob.weiss@tum.de>



#include "cshelper.h"



#include <sstream>



#include <cgt/texture.h> 

#include <cgt/imageunit.h>

#include <cgt/gltextureformattraits.h>



namespace campvis {

    namespace CSHelper {

        //const std::string loggerCat_ = "CAMPVis.core.tools.CSHelper";

        CAMPVIS_CORE_API std::string generateGLSLImageDefinition(const cgt::Texture & tex, const std::string& uniformName, const cgt::ImageUnit& imgUnit)

        {

            std::stringstream ss;

            auto fmtTraits = cgt::GLTextureFormatTraits::get(tex.getInternalFormat());

            ss << "layout(" << fmtTraits.glslFormatQualifier() << ", binding = " << imgUnit.getUnitNumber() << ") uniform "; // "layout( (r8|r16|rgba16|...) uniform"

            ss << (fmtTraits.isIntegerFormat() ? (fmtTraits.isSignedFormat() ? "iimage" : "uimage") : "image"); // "(i|u|_)image"

            ss << ( (tex.getType() == GL_TEXTURE_1D) ? 1 : ( (tex.getType() == GL_TEXTURE_2D) ? 2 : 3) ) << "D "; // "(1|2|3)D"

            ss << uniformName << ";" << std::endl;

            

            return ss.str();

        }

    }

}
 
 No newline at end of file

core/tools/cshelper.h

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+56 −0
Original line number Diff line number Diff line 
// ================================================================================================

// 

// This file is part of the CAMPVis Software Framework.

// 

// If not explicitly stated otherwise: Copyright (C) 2012-2015, all rights reserved,

//      Christian Schulte zu Berge <christian.szb@in.tum.de>

//      Chair for Computer Aided Medical Procedures

//      Technische Universitaet Muenchen

//      Boltzmannstr. 3, 85748 Garching b. Muenchen, Germany

// 

// For a full list of authors and contributors, please refer to the file "AUTHORS.txt".

// 

// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file 

// except in compliance with the License. You may obtain a copy of the License at

// 

// http://www.apache.org/licenses/LICENSE-2.0

// 

// Unless required by applicable law or agreed to in writing, software distributed under the 

// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, 

// either express or implied. See the License for the specific language governing permissions 

// and limitations under the License.

// 

// ================================================================================================



// (c) 2016 Jakob Weiss <jakob.weiss@tum.de>



#ifndef CSHELPER_H__

#define CSHELPER_H__



#include <string>



#include "core/coreapi.h"



namespace cgt {

    class Texture;

    class ImageUnit;

}





namespace campvis {

    /**

     * CSHelper namespace

     * Collection of various helper classes and functions to simplify using Compute Shaders for various applications

     */

    namespace CSHelper {

        /// Loggin category for the LDEBUG macros

        //const std::string loggerCat_;



        /**

         *	Generates a glsl image definition that matches the texture type and layout

         */

        CAMPVIS_CORE_API std::string generateGLSLImageDefinition(const cgt::Texture& tex, const std::string& uniformName, const cgt::ImageUnit& imgUnit);

    }

}



#endif // CSHELPER_H__

core/tools/glreduction.cpp

+1 −1
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@@ -176,7 +176,7 @@ namespace campvis { 
        }



        // read back stuff

        GLenum readBackFormat = cgt::Texture::calcMatchingFormat(outputTex->getInternalFormat());

        GLenum readBackFormat = cgt::Texture::calcMatchingPixelFormat(outputTex->getInternalFormat());

        size_t channels = outputTex->getNumChannels();

        toReturn.resize(channels);

        glReadBuffer(GL_COLOR_ATTACHMENT0);

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