viewporthandler.h

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#pragma once
 
 
 
#include "base/rect.h"
#include "core/viewport.h"
 
 
namespace eu::render
{
    struct ShaderProgram;
    struct Init;
 
    enum class ViewportType
    {
        screen_pixel, fit_with_black_bars, extend
    };
 
    struct ViewportHandler
    {
        render::Init* init;
        std::vector<ShaderProgram*> shaders;
 
        ViewportType type = ViewportType::screen_pixel;
        int window_width = 0;
        int window_height = 0;
 
        // only used if type != pixel
        float virtual_width = 800.0f;
        float virtual_height = 600.0f;
 
        Rectf* virtual_screen;
 
        ViewportHandler(render::Init* i, Rectf* s);
 
        void
        add(ShaderProgram* shader);
 
        void
        set_size(int width, int height);
 
        void
        clear_black();
 
        [[nodiscard]] core::Viewport
        get_full_viewport() const;
    };
}