#include "utils.h"

void printCurrentDirectory() {
	DWORD nBufferLength = 250;
	LPWSTR lpBuffer = new WCHAR[nBufferLength];
	GetCurrentDirectoryW(nBufferLength, lpBuffer);
	//OutputDebugStringW(lpBuffer);
	MessageBoxW(nullptr, lpBuffer, L"Current working directory", MB_OK);
}

EntryArgs gEntryArgs;

void EntryArgs::fill(HINSTANCE hThisInstance, LPSTR lpszArgs, int nWinMode) {
	this->hThisInstance = hThisInstance;
	this->lpszArgs = lpszArgs;
	this->nWinMode = nWinMode;
}

ComPtr<ID3DBlob> loadBlob(const std::string& fileName)
{
    //printCurrentDirectory();

    std::ifstream blobFile(fileName, std::ios::binary);

    if (!blobFile.is_open()) // ha nem sikerült megnyitni a fájlt
    {
        ERRBOX("Could not open blob file '" + fileName + "'!");
        return nullptr;
    }

    blobFile.seekg(0, std::ios::end);
    size_t fileSize = blobFile.tellg();

    ComPtr<ID3DBlob> pBlob { nullptr }; // blob létrehozása
    if(D3DCreateBlob(fileSize, pBlob.GetAddressOf()) != S_OK )
    {
        ERRBOX("Could not create D3DBlob for loading '" + fileName + "'!");
        return nullptr;
    }

    // fájl beolvasása a blob-ba
    blobFile.seekg(0, std::ios::beg);
    if (blobFile.read(reinterpret_cast<char*>(pBlob->GetBufferPointer()), fileSize))
    {
        return pBlob;
    }

    ERRBOX("Failed to load '" + fileName + "' into buffer!");
    return nullptr;

}

size_t calc256AlignedSize(size_t origSize) {
    return (origSize + 255) & ~255;
}