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245e0bd9f3
The current AddressMap is now passed into the plugin manager, which wraps it in an AddressTranslate object and passes that to the plugins at Prepare() time. This allows plugins to convert addresses to offsets, making it possible to format complex structures. This breaks existing plugins.
59 lines
2.1 KiB
C#
59 lines
2.1 KiB
C#
/*
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* Copyright 2019 faddenSoft
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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using System;
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using CommonUtil;
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namespace PluginCommon {
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/// <summary>
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/// Read-only wrapper around AddressMap.
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///
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/// Instance is immutable, though in theory the underlying AddressMap could change if
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/// some other code has a reference to it.
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/// </summary>
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/// <remarks>
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/// This is currently simple enough that it could just be an interface, but I don't want
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/// to rely on that remaining true.
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/// </remarks>
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public class AddressTranslate {
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private AddressMap mAddrMap;
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public AddressTranslate(AddressMap addrMap) {
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mAddrMap = addrMap;
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}
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/// <summary>
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/// Determines the file offset that best contains the specified target address.
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/// </summary>
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/// <param name="srcOffset">Offset of the address reference. Only matters when
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/// multiple file offsets map to the same address.</param>
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/// <param name="targetAddr">Address to look up.</param>
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/// <returns>The file offset, or -1 if the address falls outside the file.</returns>
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public int AddressToOffset(int srcOffset, int targetAddr) {
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return mAddrMap.AddressToOffset(srcOffset, targetAddr);
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}
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/// <summary>
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/// Converts a file offset to an address.
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/// </summary>
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/// <param name="offset">File offset.</param>
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/// <returns>24-bit address.</returns>
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public int OffsetToAddress(int offset) {
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return mAddrMap.OffsetToAddress(offset);
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}
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}
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}
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