texturesource.h

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/*
Minetest
Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
 
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
 
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.
 
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
 
#pragma once
 
#include "irrlichttypes.h"
#include <ITexture.h>
#include <string>
#include <vector>
 
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::ITexture* getNormalTexture(const std::string &name)=0;
    virtual video::SColor getTextureAverageColor(const std::string &name)=0;
    virtual video::ITexture *getShaderFlagsTexture(bool normalmap_present)=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::ITexture* getNormalTexture(const std::string &name)=0;
    virtual video::SColor getTextureAverageColor(const std::string &name)=0;
    virtual video::ITexture *getShaderFlagsTexture(bool normalmap_present)=0;
};
 
IWritableTextureSource *createTextureSource();