texture.hpp

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/*
 * Copyright (C) 2021-2022 Konstanty Misiak
 *
 * SPDX-License-Identifier: MIT
 */
 
#pragma once
#include "jng/core/base.hpp"
 
namespace jng {
 
    enum class TextureFormat {
        None,
 
        RGBA8, // normalized integer
        R32,   // unsigned integer
 
        Depth24Stencil8
    };
 
    enum class TextureFilter {
        Linear,
        Nearest
    };
 
    enum class TextureWrapMode {
        Clamp,
        Wrap
    };
 
    struct TextureSpecification {
        TextureFormat format;
        TextureFilter minificationFilter = TextureFilter::Linear;
        TextureFilter magnificationFilter = TextureFilter::Linear;
        TextureWrapMode wrapMode = TextureWrapMode::Clamp;
 
        TextureSpecification(TextureFormat inFormat) : format{ inFormat } {}
    };
 
    class Texture final
    {
    public:
        struct Properties {
            TextureSpecification specification = TextureFormat::None;
            u32 width;
            u32 height;
        };
 
        explicit Texture(const char* path);
        explicit Texture(const Properties& properties);
        ~Texture();
 
        void bind(u32 slot) const;
        void unbind(u32 slot) const;
        void setData(void* data, size_t size) const;
 
        u32 getID() const { return m_id; }
        const Properties& getProperties() const { return m_properties; }
        void* getRendererID() { return reinterpret_cast<void*>(static_cast<u64>(m_id)); }
    private:
        void createTexture();
 
        Properties m_properties;
        u32 m_id;
    };
 
} // namespace jng