mirror of https://github.com/minetest/minetest.git
85 lines
3.1 KiB
C++
85 lines
3.1 KiB
C++
/*
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Minetest
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Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#pragma once
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#include <IImage.h>
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#include <string>
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#include "settings.h"
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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::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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/*! 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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// TODO should probably be moved elsewhere
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static video::SColor getImageAverageColor(const video::IImage &image);
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ImageSource() :
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m_setting_mipmap{g_settings->getBool("mip_map")},
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m_setting_trilinear_filter{g_settings->getBool("trilinear_filter")},
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m_setting_bilinear_filter{g_settings->getBool("bilinear_filter")},
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m_setting_anisotropic_filter{g_settings->getBool("anisotropic_filter")}
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{};
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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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