86 lines
4.3 KiB
C++
86 lines
4.3 KiB
C++
/*************************************************************************/
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/* Copyright (c) 2015 dx, http://kaimi.ru */
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/* */
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/* Permission is hereby granted, free of charge, to any person */
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/* obtaining a copy of this software and associated documentation */
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/* files (the "Software"), to deal in the Software without */
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/* restriction, including without limitation the rights to use, */
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/* copy, modify, merge, publish, distribute, sublicense, and/or */
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/* sell copies of the Software, and to permit persons to whom the */
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/* Software is furnished to do so, subject to the following conditions: */
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/* The above copyright notice and this permission notice shall be */
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/* included in 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, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/*************************************************************************/
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#include <cmath>
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#include "resource_bitmap_reader.h"
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#include "pe_resource_viewer.h"
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#include "pe_structures.h"
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namespace pe_bliss
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{
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using namespace pe_win;
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resource_bitmap_reader::resource_bitmap_reader(const pe_resource_viewer& res)
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:res_(res)
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{}
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//Returns bitmap data by name and index in language directory (instead of language) (minimum checks of format correctness)
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const std::string resource_bitmap_reader::get_bitmap_by_name(const std::wstring& name, uint32_t index) const
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{
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return create_bitmap(res_.get_resource_data_by_name(pe_resource_viewer::resource_bitmap, name, index).get_data());
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}
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//Returns bitmap data by name and language (minimum checks of format correctness)
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const std::string resource_bitmap_reader::get_bitmap_by_name(uint32_t language, const std::wstring& name) const
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{
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return create_bitmap(res_.get_resource_data_by_name(language, pe_resource_viewer::resource_bitmap, name).get_data());
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}
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//Returns bitmap data by ID and language (minimum checks of format correctness)
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const std::string resource_bitmap_reader::get_bitmap_by_id_lang(uint32_t language, uint32_t id) const
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{
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return create_bitmap(res_.get_resource_data_by_id(language, pe_resource_viewer::resource_bitmap, id).get_data());
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}
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//Returns bitmap data by ID and index in language directory (instead of language) (minimum checks of format correctness)
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const std::string resource_bitmap_reader::get_bitmap_by_id(uint32_t id, uint32_t index) const
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{
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return create_bitmap(res_.get_resource_data_by_id(pe_resource_viewer::resource_bitmap, id, index).get_data());
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}
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//Helper function of creating bitmap header
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const std::string resource_bitmap_reader::create_bitmap(const std::string& resource_data)
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{
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//Create bitmap file header
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bitmapfileheader header = {0};
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header.bfType = 0x4d42; //Signature "BM"
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header.bfOffBits = sizeof(bitmapfileheader) + sizeof(bitmapinfoheader); //Offset to bitmap bits
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header.bfSize = static_cast<uint32_t>(sizeof(bitmapfileheader) + resource_data.length()); //Size of bitmap
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//Check size of resource data
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if(resource_data.length() < sizeof(bitmapinfoheader))
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throw pe_exception("Incorrect resource bitmap", pe_exception::resource_incorrect_bitmap);
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{
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//Get bitmap info header
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const bitmapinfoheader* info = reinterpret_cast<const bitmapinfoheader*>(resource_data.data());
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//If color table is present, skip it
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if(info->biClrUsed != 0)
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header.bfOffBits += 4 * info->biClrUsed; //Add this size to offset to bitmap bits
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else if(info->biBitCount <= 8)
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header.bfOffBits += 4 * static_cast<uint32_t>(std::pow(2.f, info->biBitCount)); //Add this size to offset to bitmap bits
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}
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//Return final bitmap data
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return std::string(reinterpret_cast<const char*>(&header), sizeof(bitmapfileheader)) + resource_data;
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}
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}
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