texturesource.h

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// Luanti
// SPDX-License-Identifier: LGPL-2.1-or-later
// Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
 
#pragma once
 
#include "irrlichttypes.h"
#include <SColor.h>
#include <string>
#include <vector>
 
namespace irr::video
{
        class IImage;
        class ITexture;
}
 
typedef std::vector<video::SColor> Palette;
 
/*
        TextureSource creates and caches textures.
*/
 
class ISimpleTextureSource
{
public:
        ISimpleTextureSource() = default;
 
        virtual ~ISimpleTextureSource() = default;
 
        virtual video::ITexture* getTexture(
                        const std::string &name, u32 *id = nullptr) = 0;
};
 
class ITextureSource : public ISimpleTextureSource
{
public:
        ITextureSource() = default;
 
        virtual ~ITextureSource() = default;
 
        virtual u32 getTextureId(const std::string &name)=0;
        virtual std::string getTextureName(u32 id)=0;
        virtual video::ITexture* getTexture(u32 id)=0;
        virtual video::ITexture* getTexture(
                        const std::string &name, u32 *id = nullptr)=0;
        virtual video::ITexture* getTextureForMesh(
                        const std::string &name, u32 *id = nullptr) = 0;
        virtual Palette* getPalette(const std::string &name) = 0;
        virtual bool isKnownSourceImage(const std::string &name)=0;
        virtual video::SColor getTextureAverageColor(const std::string &name)=0;
};
 
class IWritableTextureSource : public ITextureSource
{
public:
        IWritableTextureSource() = default;
 
        virtual ~IWritableTextureSource() = default;
 
        virtual u32 getTextureId(const std::string &name)=0;
        virtual std::string getTextureName(u32 id)=0;
        virtual video::ITexture* getTexture(u32 id)=0;
        virtual video::ITexture* getTexture(
                        const std::string &name, u32 *id = nullptr)=0;
        virtual bool isKnownSourceImage(const std::string &name)=0;
 
        virtual void processQueue()=0;
        virtual void insertSourceImage(const std::string &name, video::IImage *img)=0;
        virtual void rebuildImagesAndTextures()=0;
        virtual video::SColor getTextureAverageColor(const std::string &name)=0;
};
 
IWritableTextureSource *createTextureSource();