GeometryBuffer.h

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#pragma once
 
#include <vector>
 
#include <tdme/tdme.h>
#include <tdme/engine/fwd-tdme.h>
 
using std::vector;
 
using tdme::engine::Decal;
using tdme::engine::Engine;
 
/**
 * Geometry buffer class
 * @author Andreas Drewke
 */
class tdme::engine::GeometryBuffer final
{
private:
    int32_t width;
    int32_t height;
    int32_t frameBufferId;
    int32_t depthBufferTextureId;
    int32_t geometryBufferTextureId1;
    int32_t geometryBufferTextureId2;
    int32_t geometryBufferTextureId3;
    int32_t colorBufferTextureId1;
    int32_t colorBufferTextureId2;
    int32_t colorBufferTextureId3;
    int32_t colorBufferTextureId4;
    int32_t colorBufferTextureId5;
 
public:
    // forbid class copy
    FORBID_CLASS_COPY(GeometryBuffer)
 
    /**
     * Public constructor
     * @param width width
     * @param height height
     */
    GeometryBuffer(int32_t width, int32_t height);
 
    /**
     * @return width
     */
    inline int32_t getWidth() {
        return width;
    }
 
    /**
     * @return height
     */
    inline int32_t getHeight() {
        return height;
    }
 
    /**
     * @return frame buffer id
     */
    inline int32_t getId() {
        return frameBufferId;
    }
 
    /**
     * @return depth buffer texture
     */
    inline int32_t getDepthBufferTextureId() {
        return depthBufferTextureId;
    }
 
    /**
     * @return geometry buffer texture 1
     */
    inline int32_t getGeometryBufferTextureId1() {
        return geometryBufferTextureId1;
    }
 
    /**
     * @return geometry buffer texture 2
     */
    inline int32_t getGeometryBufferTextureId2() {
        return geometryBufferTextureId2;
    }
 
    /**
     * @return geometry buffer texture 2
     */
    inline int32_t getGeometryBufferTextureId3() {
        return geometryBufferTextureId3;
    }
 
    /**
     * @return color buffer texture 1
     */
    inline int32_t getColorBufferTextureId1() {
        return colorBufferTextureId1;
    }
 
    /**
     * @return color buffer texture 2
     */
    inline int32_t getColorBufferTextureId2() {
        return colorBufferTextureId2;
    }
 
    /**
     * @return color buffer texture 3
     */
    inline int32_t getColorBufferTextureId3() {
        return colorBufferTextureId3;
    }
 
    /**
     * @return color buffer texture 4
     */
    inline int32_t getColorBufferTextureId4() {
        return colorBufferTextureId4;
    }
 
    /**
     * @return color buffer texture 5
     */
    inline int32_t getColorBufferTextureId5() {
        return colorBufferTextureId5;
    }
 
    /**
     * Initialize the geometry buffer
     */
    void initialize();
 
    /**
     * Resize the geometry buffer
     * @param width width
     * @param height height
     */
    void reshape(int32_t width, int32_t height);
 
    /**
     * Disposes this geometry buffer
     */
    void dispose();
 
    /**
     * Enables this geometry buffer to be rendered
     */
    void enableGeometryBuffer();
 
    /**
     * Switches back to non offscreen main frame buffer to be rendered
     */
    static void disableGeometryBuffer();
 
    /**
     * Render to screen or bound geometry buffer
     * @engine engine
     * @param decalObjects decal entities
     */
    void renderToScreen(Engine* engine, vector<Decal*>& decalEntities);
 
};