Function readResourceDirectory

source/ui/utils/readIcons.cpp:262–296

};

void readResourceDirectory(BReadFile& f, uint32_t resourceVirtualAddress, uint32_t baseResourceFileOffset, unsigned char* resourceBuffer, uint32_t offsetFromBaseResource, uint32_t resourceBufferSize, ImageResourceDirectory* dir, uint16_t type, bool isIcon, std::vector<IconInfo>& icons) {
    ImageResourceDirectoryEntry* entry = (ImageResourceDirectoryEntry*)(((unsigned char*)dir)+sizeof(ImageResourceDirectory));
    for (int i=0;i<dir->NumberOfNamedEntries+dir->NumberOfIdEntries;i++, entry++) {
        if (entry->DirectoryInfo.DataIsDirectory) {
            if (entry->DirectoryInfo.OffsetToDirectory<offsetFromBaseResource || entry->DirectoryInfo.OffsetToDirectory+sizeof(ImageResourceDirectory)>=offsetFromBaseResource+resourceBufferSize) {
                unsigned char buffer[4096] = {};
                int newOffsetFromBaseResource = entry->DirectoryInfo.OffsetToDirectory & 0xFFFFF000;
                f.setPos(offsetFromBaseResource+baseResourceFileOffset);
                f.read(buffer, 4096);
                readResourceDirectory(f, resourceVirtualAddress, baseResourceFileOffset, buffer, newOffsetFromBaseResource, 4096, (ImageResourceDirectory*)(entry->DirectoryInfo.OffsetToDirectory+resourceBuffer), entry->Id, isIcon || type==3, icons);
            } else {
                readResourceDirectory(f, resourceVirtualAddress, baseResourceFileOffset, resourceBuffer, offsetFromBaseResource, resourceBufferSize, (ImageResourceDirectory*)(entry->DirectoryInfo.OffsetToDirectory+resourceBuffer), entry->Id, isIcon || type==3, icons);
            }
        } else {
            if (isIcon) {
                ImageResourceDataEntry* data = nullptr;
                if (entry->DirectoryInfo.OffsetToDirectory>=offsetFromBaseResource && entry->DirectoryInfo.OffsetToDirectory+sizeof(ImageResourceDirectory)<offsetFromBaseResource+resourceBufferSize) {
                    data = (ImageResourceDataEntry*)(entry->OffsetToData+resourceBuffer);
                } else {
                    static unsigned char buffer[sizeof(ImageResourceDirectory)];
                    f.setPos(entry->DirectoryInfo.OffsetToDirectory+baseResourceFileOffset);
                    f.read(buffer, sizeof(ImageResourceDirectory));
                    data = (ImageResourceDataEntry*)buffer;
                }
                if (data->Size>0 && data->Size<1024*1024) {
                    f.setPos((data->OffsetToData-resourceVirtualAddress)+baseResourceFileOffset);
                    IconInfo info;
                    f.read((char*)&info.bih, sizeof(BitmapInfoHeader));
                    info.fileOffset = (data->OffsetToData-resourceVirtualAddress)+baseResourceFileOffset;
                    icons.push_back(info);
                }
            }
        }
    }
}

void readPalette(BitmapInfoHeader& bih, BReadFile& f, U32* palette) {
	int depth = bih.biBitCount;