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64 lines
2.1 KiB
C++
64 lines
2.1 KiB
C++
// Luanti
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// SPDX-License-Identifier: LGPL-2.1-or-later
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// Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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#pragma once
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#include <IImage.h>
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#include <unordered_map>
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#include <set>
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#include <string>
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using namespace irr;
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// This file is only used for internal generation of images.
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// Use texturesource.h to handle textures.
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// A cache used for storing source images.
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// (A "source image" is an unmodified image directly taken from the filesystem.)
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// Does not contain modified images.
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class SourceImageCache {
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public:
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~SourceImageCache();
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void insert(const std::string &name, video::IImage *img, bool prefer_local);
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video::IImage* get(const std::string &name);
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// Primarily fetches from cache, secondarily tries to read from filesystem.
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video::IImage *getOrLoad(const std::string &name);
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private:
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std::unordered_map<std::string, video::IImage*> m_images;
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};
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// Generates images using texture modifiers, and caches source images.
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struct ImageSource {
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ImageSource();
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/*! Generates an image from a full string like
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* "stone.png^mineral_coal.png^[crack:1:0".
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* The returned Image should be dropped.
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* source_image_names is important to determine when to flush the image from a cache (dynamic media)
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*/
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video::IImage* generateImage(std::string_view name, std::set<std::string> &source_image_names);
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// Insert a source image into the cache without touching the filesystem.
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void insertSourceImage(const std::string &name, video::IImage *img, bool prefer_local);
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private:
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// Generate image based on a string like "stone.png" or "[crack:1:0".
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// If baseimg is NULL, it is created. Otherwise stuff is made on it.
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// source_image_names is important to determine when to flush the image from a cache (dynamic media).
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bool generateImagePart(std::string_view part_of_name, video::IImage *& baseimg,
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std::set<std::string> &source_image_names);
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// Cached settings needed for making textures from meshes
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bool m_setting_mipmap;
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bool m_setting_trilinear_filter;
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bool m_setting_bilinear_filter;
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bool m_setting_anisotropic_filter;
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// Cache of source images
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SourceImageCache m_sourcecache;
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};
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