Method bindResources

src/backend/opengl/plot_impl.cpp:28–59

{

void plot_impl::bindResources(const int pWindowId)
{
    if (mVAOMap.find(pWindowId) == mVAOMap.end()) {
        GLuint vao = 0;
        /* create a vertex array object
         * with appropriate bindings */
        glGenVertexArrays(1, &vao);
        glBindVertexArray(vao);
        // attach vertices
        glEnableVertexAttribArray(mPlotPointIndex);
        glBindBuffer(GL_ARRAY_BUFFER, mVBO);
        glVertexAttribPointer(mPlotPointIndex, mDimension, mGLType, GL_FALSE, 0, 0);
        // attach colors
        glEnableVertexAttribArray(mPlotColorIndex);
        glBindBuffer(GL_ARRAY_BUFFER, mCBO);
        glVertexAttribPointer(mPlotColorIndex, 3, GL_FLOAT, GL_FALSE, 0, 0);
        // attach alphas
        glEnableVertexAttribArray(mPlotAlphaIndex);
        glBindBuffer(GL_ARRAY_BUFFER, mABO);
        glVertexAttribPointer(mPlotAlphaIndex, 1, GL_FLOAT, GL_FALSE, 0, 0);
        // attach radii
        glEnableVertexAttribArray(mMarkerRadiiIndex);
        glBindBuffer(GL_ARRAY_BUFFER, mRBO);
        glVertexAttribPointer(mMarkerRadiiIndex, 1, GL_FLOAT, GL_FALSE, 0, 0);
        glBindVertexArray(0);
        /* store the vertex array object corresponding to
         * the window instance in the map */
        mVAOMap[pWindowId] = vao;
    }

    glBindVertexArray(mVAOMap[pWindowId]);
}

void plot_impl::unbindResources() const
{