MRRenderLabelObject.h

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#pragma once
#include "MRMesh/MRIRenderObject.h"
#include "MRMesh/MRVector2.h"
#include "MRRenderGLHelpers.h"
#include "MRRenderHelpers.h"
#include "MRMesh/MRBox.h"
 
namespace MR
{
class RenderLabelObject : public virtual IRenderObject
{
public:
    RenderLabelObject( const VisualObject& visObj );
    ~RenderLabelObject();
 
    virtual bool render( const ModelRenderParams& params ) override;
    virtual void renderPicker( const ModelBaseRenderParams& params, unsigned geomId ) override;
 
    virtual size_t heapBytes() const override;
    virtual size_t glBytes() const override;
 
    virtual void forceBindAll() override;
 
private:
    const ObjectLabel* objLabel_;
 
    int faceIndicesSize_{ 0 };
 
    RenderBufferRef<Vector3i> loadFaceIndicesBuffer_();
 
    typedef unsigned int GLuint;
 
    GLuint labelArrayObjId_{ 0 };
    GlBuffer vertPosBuffer_;
    GlBuffer facesIndicesBuffer_;
 
    GLuint srcArrayObjId_{ 0 };
    GlBuffer srcVertPosBuffer_;
    GlBuffer srcIndicesBuffer_;
    GlTexture2 srcIndicesSelectionTex_;
 
    GLuint bgArrayObjId_{ 0 };
    GlBuffer bgVertPosBuffer_;
    GlBuffer bgFacesIndicesBuffer_;
 
    GLuint llineArrayObjId_{ 0 };
    GlBuffer llineVertPosBuffer_;
    GlBuffer llineEdgesIndicesBuffer_;
 
    void renderSourcePoint_( const ModelRenderParams& renderParams );
    void renderBackground_( const ModelRenderParams& renderParams );
    void renderLeaderLine_( const ModelRenderParams& renderParams );
 
    void bindLabel_();
 
    // Create a new set of OpenGL buffer objects
    void initBuffers_();
 
    // Release the OpenGL buffer objects
    void freeBuffers_();
 
    void update_();
 
    // Marks dirty buffers that need to be uploaded to OpenGL
    uint32_t dirty_;
    bool dirtySrc_;
    bool dirtyBg_;
    bool dirtyLLine_;
    Vector3f positionState_;
    Vector2f pivotPointState_;
    float backgroundPaddingState_;
    Box3f meshBox_;
};
 
}