Method plot_impl

src/backend/opengl/plot_impl.cpp:95–164

}

plot_impl::plot_impl(const uint pNumPoints, const forge::dtype pDataType,
                     const forge::PlotType pPlotType, const forge::MarkerType pMarkerType, const int pD)
    : mDimension(pD), mMarkerSize(12), mNumPoints(pNumPoints), mDataType(pDataType),
    mGLType(dtype2gl(mDataType)), mMarkerType(pMarkerType), mPlotType(pPlotType), mIsPVROn(false),
    mPlotProgram(pD==2 ? glsl::marker2d_vs.c_str() : glsl::plot3_vs.c_str(),
                 pD==2 ? glsl::histogram_fs.c_str(): glsl::plot3_fs.c_str()),
    mMarkerProgram(pD==2 ? glsl::marker2d_vs.c_str() : glsl::plot3_vs.c_str(), glsl::marker_fs.c_str()),
    mRBO(-1), mPlotMatIndex(-1), mPlotPVCOnIndex(-1), mPlotPVAOnIndex(-1),
    mPlotUColorIndex(-1), mPlotRangeIndex(-1), mPlotPointIndex(-1), mPlotColorIndex(-1),
    mPlotAlphaIndex(-1), mMarkerPVCOnIndex(-1), mMarkerPVAOnIndex(-1), mMarkerTypeIndex(-1),
    mMarkerColIndex(-1), mMarkerMatIndex(-1), mMarkerPointIndex(-1), mMarkerColorIndex(-1),
    mMarkerAlphaIndex(-1), mMarkerRadiiIndex(-1)
{
    CheckGL("Begin plot_impl::plot_impl");

    setColor(0, 1, 0, 1);

    if (mDimension==2) {
        mPlotUColorIndex = mPlotProgram.getUniformLocation("barColor");
        mVBOSize = 2*mNumPoints;
    } else {
        mPlotRangeIndex  = mPlotProgram.getUniformLocation("minmaxs");
        mVBOSize = 3*mNumPoints;
    }

    mCBOSize = 3*mNumPoints;
    mABOSize = mNumPoints;
    mRBOSize = mNumPoints;

    mPlotMatIndex    = mPlotProgram.getUniformLocation("transform");
    mPlotPVCOnIndex  = mPlotProgram.getUniformLocation("isPVCOn");
    mPlotPVAOnIndex  = mPlotProgram.getUniformLocation("isPVAOn");
    mPlotPointIndex  = mPlotProgram.getAttributeLocation ("point");
    mPlotColorIndex  = mPlotProgram.getAttributeLocation ("color");
    mPlotAlphaIndex  = mPlotProgram.getAttributeLocation ("alpha");

    mMarkerMatIndex   = mMarkerProgram.getUniformLocation("transform");
    mMarkerPVCOnIndex = mMarkerProgram.getUniformLocation("isPVCOn");
    mMarkerPVAOnIndex = mMarkerProgram.getUniformLocation("isPVAOn");
    mMarkerPVROnIndex = mMarkerProgram.getUniformLocation("isPVROn");
    mMarkerTypeIndex  = mMarkerProgram.getUniformLocation("marker_type");
    mMarkerColIndex   = mMarkerProgram.getUniformLocation("marker_color");
    mMarkerPSizeIndex = mMarkerProgram.getUniformLocation("psize");
    mMarkerPointIndex = mMarkerProgram.getAttributeLocation ("point");
    mMarkerColorIndex = mMarkerProgram.getAttributeLocation ("color");
    mMarkerAlphaIndex = mMarkerProgram.getAttributeLocation ("alpha");
    mMarkerRadiiIndex = mMarkerProgram.getAttributeLocation ("pointsize");

#define PLOT_CREATE_BUFFERS(type)   \
        mVBO = createBuffer<type>(GL_ARRAY_BUFFER, mVBOSize, NULL, GL_DYNAMIC_DRAW);    \
        mCBO = createBuffer<float>(GL_ARRAY_BUFFER, mCBOSize, NULL, GL_DYNAMIC_DRAW);   \
        mABO = createBuffer<float>(GL_ARRAY_BUFFER, mABOSize, NULL, GL_DYNAMIC_DRAW);   \
        mRBO = createBuffer<float>(GL_ARRAY_BUFFER, mRBOSize, NULL, GL_DYNAMIC_DRAW);   \
        mVBOSize *= sizeof(type);   \
        mCBOSize *= sizeof(float);  \
        mABOSize *= sizeof(float);  \
        mRBOSize *= sizeof(float);