mirror of
https://github.com/OpenRCT2/OpenRCT2
synced 2026-01-18 20:43:04 +01:00
0cf256ac9e
Clang-format sees the text behind `#pragma region` as code and formats it. Instead of stating the copyright and date there, it's now in the comment block right below it. The text "Copyright" is left in the `#pragma region` line, as clang-format sees it as a single identifier. I took the opportunity to normalize the dates, and add the copyright notice to the source files where it was missing them (except for third-party and the generated resources.h file).
113 lines
3.5 KiB
C++
113 lines
3.5 KiB
C++
/*****************************************************************************
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* Copyright (c) 2014-2018 OpenRCT2 developers
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*
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* For a complete list of all authors, please refer to contributors.md
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* Interested in contributing? Visit https://github.com/OpenRCT2/OpenRCT2
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*
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* OpenRCT2 is licensed under the GNU General Public License version 3.
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*****************************************************************************/
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#include <algorithm>
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#include <memory>
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#include <stdexcept>
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#include "../core/IStream.hpp"
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#include "../OpenRCT2.h"
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#include "ImageTable.h"
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#include "Object.h"
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ImageTable::~ImageTable()
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{
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if (_data == nullptr)
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{
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for (auto &entry : _entries)
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{
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delete [] entry.offset;
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}
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}
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}
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void ImageTable::Read(IReadObjectContext * context, IStream * stream)
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{
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if (gOpenRCT2NoGraphics)
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{
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return;
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}
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try
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{
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uint32 numImages = stream->ReadValue<uint32>();
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uint32 imageDataSize = stream->ReadValue<uint32>();
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uint64 headerTableSize = numImages * 16;
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uint64 remainingBytes = stream->GetLength() - stream->GetPosition() - headerTableSize;
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if (remainingBytes > imageDataSize)
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{
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context->LogWarning(OBJECT_ERROR_BAD_IMAGE_TABLE, "Image table size longer than expected.");
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imageDataSize = (uint32)remainingBytes;
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}
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auto dataSize = (size_t)imageDataSize;
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auto data = std::make_unique<uint8[]>(dataSize);
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if (data == nullptr)
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{
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context->LogError(OBJECT_ERROR_BAD_IMAGE_TABLE, "Image table too large.");
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throw std::runtime_error("Image table too large.");
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}
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// Read g1 element headers
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uintptr_t imageDataBase = (uintptr_t)data.get();
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std::vector<rct_g1_element> newEntries;
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for (uint32 i = 0; i < numImages; i++)
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{
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rct_g1_element g1Element;
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uintptr_t imageDataOffset = (uintptr_t)stream->ReadValue<uint32>();
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g1Element.offset = (uint8*)(imageDataBase + imageDataOffset);
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g1Element.width = stream->ReadValue<sint16>();
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g1Element.height = stream->ReadValue<sint16>();
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g1Element.x_offset = stream->ReadValue<sint16>();
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g1Element.y_offset = stream->ReadValue<sint16>();
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g1Element.flags = stream->ReadValue<uint16>();
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g1Element.zoomed_offset = stream->ReadValue<uint16>();
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newEntries.push_back(g1Element);
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}
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// Read g1 element data
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size_t readBytes = (size_t)stream->TryRead(data.get(), dataSize);
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// If data is shorter than expected (some custom objects are unfortunately like that)
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size_t unreadBytes = dataSize - readBytes;
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if (unreadBytes > 0)
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{
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std::fill_n(data.get() + readBytes, unreadBytes, 0);
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context->LogWarning(OBJECT_ERROR_BAD_IMAGE_TABLE, "Image table size shorter than expected.");
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}
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_data = std::move(data);
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_entries.insert(_entries.end(), newEntries.begin(), newEntries.end());
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}
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catch (const std::exception &)
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{
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context->LogError(OBJECT_ERROR_BAD_IMAGE_TABLE, "Bad image table.");
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throw;
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}
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}
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void ImageTable::AddImage(const rct_g1_element * g1)
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{
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rct_g1_element newg1 = *g1;
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auto length = g1_calculate_data_size(g1);
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if (length == 0)
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{
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newg1.offset = nullptr;
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}
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else
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{
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newg1.offset = new uint8[length];
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std::copy_n(g1->offset, length, newg1.offset);
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}
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_entries.push_back(newg1);
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}
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