OpenRCT2/src/openrct2-ui/drawing/engines/opengl/OpenGLFramebuffer.h

/*****************************************************************************
 * Copyright (c) 2014-2023 OpenRCT2 developers
 *
 * For a complete list of all authors, please refer to contributors.md
 * Interested in contributing? Visit https://github.com/OpenRCT2/OpenRCT2
 *
 * OpenRCT2 is licensed under the GNU General Public License version 3.
 *****************************************************************************/

#pragma once

#include "OpenGLAPI.h"

#include <openrct2/common.h>
#include <openrct2/drawing/Drawing.h>
#include <vector>

struct SDL_Window;

class OpenGLFramebuffer
{
private:
    GLuint _id;
    GLuint _texture;
    GLuint _depth;
    int32_t _width;
    int32_t _height;

public:
    explicit OpenGLFramebuffer(SDL_Window* window);
    OpenGLFramebuffer(int32_t width, int32_t height, bool depth = true, bool integer = true, bool word = false);
    ~OpenGLFramebuffer();

    OpenGLFramebuffer(const OpenGLFramebuffer&) = delete;
    OpenGLFramebuffer& operator=(const OpenGLFramebuffer&) = delete;

    GLuint GetWidth() const
    {
        return _width;
    }
    GLuint GetHeight() const
    {
        return _height;
    }
    GLuint GetTexture() const
    {
        return _texture;
    }
    GLuint GetDepthTexture() const
    {
        return _depth;
    }

    void Bind() const;
    void BindDraw() const;
    void BindRead() const;
    void GetPixels(DrawPixelInfo& dpi) const;

    void SwapColourBuffer(OpenGLFramebuffer& other);
    GLuint SwapDepthTexture(GLuint depth);
    void Copy(OpenGLFramebuffer& src, GLenum filter);

    static GLuint CreateDepthTexture(int32_t width, int32_t height);
};