VisTexture2D.hpp

#pragma once

class Texture2D;
    
#include "Vis.hpp"
#include <ImfArray.h>

class Texture2D
{
    private:
    Imf::Array2D<Color4f> pixels;
    GLenum min_filter;
    GLenum mag_filter;
    GLuint texture_name;

    V2i size;

    public:

    Texture2D(  const char* path,
                GLenum wrapS = GL_REPEAT,
                GLenum wrapT = GL_REPEAT,
                GLenum magFilter = GL_LINEAR,
                GLenum minFilter = GL_LINEAR_MIPMAP_LINEAR);

    Texture2D(  V2i size,
                Color4f color = Color4f(0.0),
                GLenum wrapS = GL_REPEAT,
                GLenum wrapT = GL_REPEAT,
                GLenum magFilter = GL_LINEAR,
                GLenum minFilter = GL_LINEAR_MIPMAP_LINEAR);

    Texture2D(  V2i size,
                Color4f* pixels,
                GLenum wrapS = GL_REPEAT,
                GLenum wrapT = GL_REPEAT,
                GLenum magFilter = GL_LINEAR,
                GLenum minFilter = GL_LINEAR_MIPMAP_LINEAR);

    virtual ~Texture2D() {
        glDeleteTextures(1, &texture_name);
    };

    V2i get_size()
    {
        return size;
    };

    Color4f* get_pixels()
    {
        return &(pixels[0][0]);
    };

    void send_to_GPU();

    void build_mipmaps();

    // Virtuals from Texture:
    void bind(GLuint texUnit);

    GLuint get_texture_name()
    {
        return texture_name;
    };

    private:

    void setup( GLenum wrapS,
                GLenum wrapT,
                GLenum magFilter,
                GLenum minFilter);
};

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