496 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			C++
		
	
	
	
			
		
		
	
	
			496 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			C++
		
	
	
	
// Copyright (c) 2016-2018 Kiwano - Nomango
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// 
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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// 
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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// 
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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#include "ResLoader.h"
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#include "../base/logs.h"
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#include "../2d/Image.h"
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#include "../2d/Frames.h"
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#include "../2d/GifImage.h"
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#include "FileUtil.h"
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#include <fstream>
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namespace kiwano
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{
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	namespace __res_loader_01
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	{
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		struct GlobalData
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		{
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			String path;
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		};
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		bool LoadImagesFromData(ResLoader* loader, GlobalData* gdata, const String* id, const String* type,
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			const String* file, const Array<const wchar_t*>* files, int rows, int cols)
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		{
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			if (!gdata || !id) return false;
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			if (file)
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			{
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				// Gif image
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				if (type && (*type) == L"gif")
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				{
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					return loader->AddGifImage(*id, Resource(gdata->path + (*file)));
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				}
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				if (!(*file).empty())
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				{
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					if (rows || cols)
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					{
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						// Image slices
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						return !!loader->AddFrames(*id, Resource(gdata->path + (*file)), std::max(cols, 1), std::max(rows, 1));
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					}
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					else
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					{
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						// Simple image
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						return loader->AddImage(*id, Resource(gdata->path + (*file)));
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					}
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				}
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			}
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			// Frames
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			if (files)
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			{
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				Array<ImagePtr> images;
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				images.reserve(files->size());
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				for (const auto& file : (*files))
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				{
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					ImagePtr image = new Image(gdata->path + (file));
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					if (image->IsValid())
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					{
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						images.push_back(image);
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					}
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				}
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				return !!loader->AddFrames(*id, images);
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			}
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			return false;
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		}
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		bool LoadJsonData(ResLoader* loader, Json const& json_data)
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		{
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			GlobalData global_data;
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			if (json_data.count(L"path"))
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			{
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				global_data.path = json_data[L"path"];
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			}
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			if (json_data.count(L"images"))
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			{
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				for (const auto& image : json_data[L"images"])
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				{
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					const String* id = nullptr, *type = nullptr, *file = nullptr;
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					int rows = 0, cols = 0;
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					if (image.count(L"id")) id = &image[L"id"].as_string();
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					if (image.count(L"type")) type = &image[L"type"].as_string();
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					if (image.count(L"file")) file = &image[L"file"].as_string();
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					if (image.count(L"rows")) rows = image[L"rows"].as_int();
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					if (image.count(L"cols")) cols = image[L"cols"].as_int();
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					if (image.count(L"files"))
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					{
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						Array<const wchar_t*> files;
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						files.reserve(image[L"files"].size());
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						for (const auto& file : image[L"files"])
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						{
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							files.push_back(file.as_string().c_str());
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						}
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						if (!LoadImagesFromData(loader, &global_data, id, type, file, &files, rows, cols))
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							return false;
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					}
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					else
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					{
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						if (!LoadImagesFromData(loader, &global_data, id, type, file, nullptr, rows, cols))
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							return false;
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					}
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				}
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			}
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			return true;
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		}
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		bool LoadXmlData(ResLoader* loader, tinyxml2::XMLElement* elem)
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		{
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			GlobalData global_data;
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			if (auto path = elem->FirstChildElement(L"path"))
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			{
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				global_data.path = path->GetText();
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			}
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			if (auto images = elem->FirstChildElement(L"images"))
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			{
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				for (auto image = images->FirstChildElement(); image; image = image->NextSiblingElement())
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				{
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					String id, type, file;
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					int rows = 0, cols = 0;
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					if (auto attr = image->Attribute(L"id"))      id.assign(attr); // assign() copies attr content
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					if (auto attr = image->Attribute(L"type"))    type = attr;     // operator=() just holds attr pointer
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					if (auto attr = image->Attribute(L"file"))    file = attr;
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					if (auto attr = image->IntAttribute(L"rows")) rows = attr;
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					if (auto attr = image->IntAttribute(L"cols")) cols = attr;
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					if (file.empty() && !image->NoChildren())
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					{
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						Array<const wchar_t*> files_arr;
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						for (auto file = image->FirstChildElement(); file; file = file->NextSiblingElement())
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						{
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							if (auto path = file->Attribute(L"path"))
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							{
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								files_arr.push_back(path);
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							}
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						}
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						if (!LoadImagesFromData(loader, &global_data, &id, &type, &file, &files_arr, rows, cols))
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							return false;
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					}
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					else
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					{
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						if (!LoadImagesFromData(loader, &global_data, &id, &type, &file, nullptr, rows, cols))
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							return false;
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					}
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				}
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			}
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			return true;
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		}
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	}
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	namespace
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	{
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		Map<String, Closure<bool(ResLoader*, Json const&)>> load_json_funcs = {
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			{ L"latest", __res_loader_01::LoadJsonData },
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			{ L"0.1", __res_loader_01::LoadJsonData },
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		};
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		Map<String, Closure<bool(ResLoader*, tinyxml2::XMLElement*)>> load_xml_funcs = {
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			{ L"latest", __res_loader_01::LoadXmlData },
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			{ L"0.1", __res_loader_01::LoadXmlData },
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		};
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	}
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	bool ResLoader::LoadFromJsonFile(String const& file_path)
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	{
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		Json json_data;
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		std::wifstream ifs;
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		ifs.exceptions(std::ifstream::failbit | std::ifstream::badbit);
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		try
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		{
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			ifs.open(file_path.c_str());
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			ifs >> json_data;
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			ifs.close();
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		}
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		catch (std::wifstream::failure& e)
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		{
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			KGE_WARNING_LOG(L"ResLoader::LoadFromJsonFile failed: Cannot open file. (%s)", string_to_wide(e.what()).c_str());
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			return false;
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		}
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		catch (json_exception& e)
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		{
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			KGE_WARNING_LOG(L"ResLoader::LoadFromJsonFile failed: Cannot parse to JSON. (%s)", string_to_wide(e.what()).c_str());
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			return false;
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		}
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		return LoadFromJson(json_data);
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	}
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	bool ResLoader::LoadFromJson(Json const& json_data)
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	{
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		try
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		{
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			String version = json_data[L"version"];
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			auto load = load_json_funcs.find(version);
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			if (load != load_json_funcs.end())
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			{
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				return load->second(this, json_data);
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			}
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			else if (version.empty())
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			{
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				return load_json_funcs[L"latest"](this, json_data);
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			}
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			else
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			{
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				throw std::runtime_error("unknown JSON data version");
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			}
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		}
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		catch (std::exception& e)
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		{
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			KGE_WARNING_LOG(L"ResLoader::LoadFromJson failed: JSON data is invalid. (%s)", string_to_wide(e.what()).c_str());
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			return false;
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		}
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		return false;
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	}
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	bool ResLoader::LoadFromXmlFile(String const& file_path)
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	{
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		tinyxml2::XMLDocument doc;
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		std::wifstream ifs;
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		ifs.exceptions(std::ifstream::failbit | std::ifstream::badbit);
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		try
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		{
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			ifs.open(file_path.c_str());
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			std::wstringstream ss;
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			ss << ifs.rdbuf();
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			if (tinyxml2::XML_SUCCESS != doc.Parse(ss.str().c_str()))
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			{
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				KGE_WARNING_LOG(L"ResLoader::LoadFromXmlFile failed: %s (%s)",
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					tinyxml2::XMLDocument::ErrorIDToName(doc.ErrorID()), doc.ErrorStr());
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				return false;
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			}
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		}
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		catch (std::wifstream::failure& e)
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		{
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			KGE_WARNING_LOG(L"ResLoader::LoadFromXmlFile failed: Cannot open file. (%s)", string_to_wide(e.what()).c_str());
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			return false;
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		}
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		return LoadFromXml(&doc);
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	}
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	bool ResLoader::LoadFromXml(tinyxml2::XMLDocument* doc)
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	{
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		if (doc)
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		{
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			try
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			{
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				if (auto root = doc->FirstChildElement(L"resources"))
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				{
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					kiwano::wstring version;
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					if (auto ver = root->FirstChildElement(L"version")) version = ver->GetText();
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					auto load = load_xml_funcs.find(version);
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					if (load != load_xml_funcs.end())
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					{
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						return load->second(this, root);
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					}
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					else if (version.empty())
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					{
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						return load_xml_funcs[L"latest"](this, root);
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					}
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					else
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					{
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						throw std::runtime_error("unknown JSON data version");
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					}
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				}
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			}
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			catch (std::exception& e)
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			{
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				KGE_WARNING_LOG(L"ResLoader::LoadFromXml failed: %s", string_to_wide(e.what()).c_str());
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				return false;
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			}
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		}
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		return false;
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	}
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	bool ResLoader::AddImage(String const& id, Resource const& image)
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	{
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		ImagePtr ptr = new (std::nothrow) Image;
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		if (ptr)
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		{
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			if (ptr->Load(image))
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			{
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				return AddImage(id, ptr);
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			}
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		}
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		return false;
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	}
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	bool ResLoader::AddImage(String const & id, ImagePtr image)
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	{
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		if (image)
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		{
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			res_.insert(std::make_pair(id, image));
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			return true;
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		}
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		return false;
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	}
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	bool ResLoader::AddGifImage(String const& id, Resource const& image)
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	{
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		GifImagePtr ptr = new (std::nothrow) GifImage;
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		if (ptr)
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		{
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			if (ptr->Load(image))
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			{
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				return AddGifImage(id, ptr);
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			}
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		}
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		return false;
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	}
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	bool ResLoader::AddGifImage(String const& id, GifImagePtr image)
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	{
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		if (image)
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		{
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			res_.insert(std::make_pair(id, image));
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			return true;
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		}
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		return false;
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	}
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	size_t ResLoader::AddFrames(String const& id, Array<Resource> const& images)
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	{
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		if (images.empty())
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			return 0;
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		Array<ImagePtr> image_arr;
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		image_arr.reserve(images.size());
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		for (const auto& image : images)
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		{
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			ImagePtr ptr = new (std::nothrow) Image;
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			if (ptr)
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			{
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				if (ptr->Load(image))
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				{
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					image_arr.push_back(ptr);
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				}
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			}
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		}
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		if (!image_arr.empty())
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		{
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			FramesPtr frames = new (std::nothrow) Frames(image_arr);
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			return AddFrames(id, frames);
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		}
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		return 0;
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	}
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	size_t ResLoader::AddFrames(String const& id, Array<ImagePtr> const& images)
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	{
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		if (images.empty())
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			return 0;
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		FramesPtr frames = new (std::nothrow) Frames(images);
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		return AddFrames(id, frames);
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	}
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	size_t ResLoader::AddFrames(String const & id, Resource const & image, int cols, int rows)
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	{
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		if (cols <= 0 || rows <= 0)
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			return 0;
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		ImagePtr raw = new (std::nothrow) Image;
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		if (!raw || !raw->Load(image))
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			return false;
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		float raw_width = raw->GetSourceWidth();
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		float raw_height = raw->GetSourceHeight();
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		float width = raw_width / cols;
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		float height = raw_height / rows;
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		Array<ImagePtr> image_arr;
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		image_arr.reserve(rows * cols);
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		for (int i = 0; i < rows; i++)
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		{
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			for (int j = 0; j < cols; j++)
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			{
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				ImagePtr ptr = new (std::nothrow) Image(raw->GetBitmap());
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				if (ptr)
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				{
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					ptr->Crop(Rect{ j * width, i * height, width, height });
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					image_arr.push_back(ptr);
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				}
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			}
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		}
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		FramesPtr frames = new (std::nothrow) Frames(image_arr);
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		return AddFrames(id, frames);
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	}
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	size_t ResLoader::AddFrames(String const & id, Resource const & image, Array<Rect> const & crop_rects)
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	{
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		ImagePtr raw = new (std::nothrow) Image;
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		if (!raw || !raw->Load(image))
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			return 0;
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		Array<ImagePtr> image_arr;
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		image_arr.reserve(crop_rects.size());
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		for (const auto& rect : crop_rects)
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		{
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			ImagePtr ptr = new (std::nothrow) Image(raw->GetBitmap());
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			if (ptr)
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			{
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				ptr->Crop(rect);
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				image_arr.push_back(ptr);
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			}
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		}
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		FramesPtr frames = new (std::nothrow) Frames(image_arr);
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		return AddFrames(id, frames);
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	}
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	size_t ResLoader::AddFrames(String const & id, FramesPtr frames)
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	{
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		if (frames)
 | 
						|
		{
 | 
						|
			res_.insert(std::make_pair(id, frames));
 | 
						|
			return frames->GetFrames().size();
 | 
						|
		}
 | 
						|
		return 0;
 | 
						|
	}
 | 
						|
 | 
						|
	bool ResLoader::AddObj(String const& id, ObjectPtr obj)
 | 
						|
	{
 | 
						|
		if (obj)
 | 
						|
		{
 | 
						|
			res_.insert(std::make_pair(id, obj));
 | 
						|
			return true;
 | 
						|
		}
 | 
						|
		return false;
 | 
						|
	}
 | 
						|
 | 
						|
	ImagePtr ResLoader::GetImage(String const & id) const
 | 
						|
	{
 | 
						|
		return Get<Image>(id);
 | 
						|
	}
 | 
						|
 | 
						|
	GifImagePtr ResLoader::GetGifImage(String const& id) const
 | 
						|
	{
 | 
						|
		return Get<GifImage>(id);
 | 
						|
	}
 | 
						|
 | 
						|
	FramesPtr ResLoader::GetFrames(String const & id) const
 | 
						|
	{
 | 
						|
		return Get<Frames>(id);
 | 
						|
	}
 | 
						|
 | 
						|
	void ResLoader::Delete(String const & id)
 | 
						|
	{
 | 
						|
		res_.erase(id);
 | 
						|
	}
 | 
						|
 | 
						|
	void ResLoader::Destroy()
 | 
						|
	{
 | 
						|
		res_.clear();
 | 
						|
	}
 | 
						|
 | 
						|
	ResLoader::ResLoader()
 | 
						|
	{
 | 
						|
	}
 | 
						|
 | 
						|
	ResLoader::~ResLoader()
 | 
						|
	{
 | 
						|
		Destroy();
 | 
						|
	}
 | 
						|
 | 
						|
} |