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60 lines
1.9 KiB
Plaintext
60 lines
1.9 KiB
Plaintext
//
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// CSROMFetcher.m
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// Clock Signal
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//
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// Created by Thomas Harte on 01/01/2018.
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// Copyright 2018 Thomas Harte. All rights reserved.
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//
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#import <Foundation/Foundation.h>
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#include "CSROMFetcher.hpp"
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#import "NSBundle+DataResource.h"
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#import "NSData+StdVector.h"
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#include <string>
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ROMMachine::ROMFetcher CSROMFetcher(std::vector<ROMMachine::ROM> *missing_roms) {
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return [missing_roms] (const std::vector<ROMMachine::ROM> &roms) -> std::vector<std::unique_ptr<std::vector<std::uint8_t>>> {
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NSArray<NSURL *> *const supportURLs = [[NSFileManager defaultManager] URLsForDirectory:NSApplicationSupportDirectory inDomains:NSUserDomainMask];
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std::vector<std::unique_ptr<std::vector<std::uint8_t>>> results;
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for(const auto &rom: roms) {
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NSData *fileData;
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NSString *const subdirectory = [@"ROMImages/" stringByAppendingString:[NSString stringWithUTF8String:rom.machine_name.c_str()]];
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// Check for this file first within the application support directories.
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for(NSURL *supportURL in supportURLs) {
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NSURL *const fullURL = [[supportURL URLByAppendingPathComponent:subdirectory]
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URLByAppendingPathComponent:[NSString stringWithUTF8String:rom.file_name.c_str()]];
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fileData = [NSData dataWithContentsOfURL:fullURL];
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if(fileData) break;
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}
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// Failing that, check inside the application bundle.
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if(!fileData) {
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fileData = [[NSBundle mainBundle]
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dataForResource:[NSString stringWithUTF8String:rom.file_name.c_str()]
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withExtension:nil
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subdirectory:subdirectory];
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}
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// Store an appropriate result, accumulating a list of the missing if requested.
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if(!fileData) {
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results.emplace_back(nullptr);
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if(missing_roms) {
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missing_roms->push_back(rom);
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}
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}
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else {
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auto data = std::make_unique<std::vector<std::uint8_t>>();
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*data = fileData.stdVector8;
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results.emplace_back(std::move(data));
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}
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}
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return results;
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};
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}
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