/////////////////////////////////////////////////////////////////////////////// 
// Copyright (C) 2002-2025, Open Design Alliance (the "Alliance"). 
// All rights reserved. 
// 
// This software and its documentation and related materials are owned by 
// the Alliance. The software may only be incorporated into application 
// programs owned by members of the Alliance, subject to a signed 
// Membership Agreement and Supplemental Software License Agreement with the
// Alliance. The structure and organization of this software are the valuable  
// trade secrets of the Alliance and its suppliers. The software is also 
// protected by copyright law and international treaty provisions. Application  
// programs incorporating this software must include the following statement 
// with their copyright notices:
//   
//   This application incorporates Open Design Alliance software pursuant to a license 
//   agreement with Open Design Alliance.
//   Open Design Alliance Copyright (C) 2002-2025 by Open Design Alliance. 
//   All rights reserved.
//
// By use of this software, its documentation or related materials, you 
// acknowledge and accept the above terms.
///////////////////////////////////////////////////////////////////////////////

#include "OdaCommon.h"
#include "BmpFileCreator.h"
#include "MemoryStream.h"
#include "OdPlatformStreamer.h"
#include "RxRasterServices.h"
#include "Gi/GiRasterImage.h"
#include "RxInit.h"

/*static*/ OdStreamBufPtr BmpFileCreator::createBmpFromSource(const OdUInt8 * data, int width, int height, int byteCount)
{
  BITMAPINFOHEADER bmiHeader;
  memset(&bmiHeader, 0, sizeof(BITMAPINFOHEADER));
  bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
  bmiHeader.biBitCount = 4 * 8;
  bmiHeader.biCompression = 0L;
  bmiHeader.biHeight = height;
  bmiHeader.biPlanes = 1;
  bmiHeader.biWidth = width;
  bmiHeader.biSizeImage = width * height * byteCount;

  OdStreamBufPtr pFileBuf = OdMemoryStream::createNew(sizeof(BITMAPINFOHEADER) + width * height * byteCount);

  OdPlatformStreamer::wrInt16(*pFileBuf, 0x4d42);
  OdUInt32 scanLinesPos = (OdUInt32)sizeof(BITMAPFILEHEADER) + (OdUInt32)sizeof(BITMAPINFOHEADER) + 0;  // Below version is correct only on Windows
  OdUInt32 size = scanLinesPos + OdGiRasterImage::calcBMPScanLineSize(bmiHeader.biWidth, bmiHeader.biBitCount) * bmiHeader.biHeight;

  OdPlatformStreamer::wrInt32(*pFileBuf, size);
  OdPlatformStreamer::wrInt32(*pFileBuf, 0); // reserved
  OdPlatformStreamer::wrInt32(*pFileBuf, scanLinesPos); // offBits
  OdPlatformStreamer::wrInt32(*pFileBuf, bmiHeader.biSize);  // not portable: sizeof(BITMAPINFOHEADER));
                                                       // save BITMAPINFOHEADER
  OdPlatformStreamer::wrInt32(*pFileBuf, bmiHeader.biWidth);
  OdPlatformStreamer::wrInt32(*pFileBuf, bmiHeader.biHeight);
  OdPlatformStreamer::wrInt16(*pFileBuf, bmiHeader.biPlanes);
  OdPlatformStreamer::wrInt16(*pFileBuf, bmiHeader.biBitCount);
  OdPlatformStreamer::wrInt32(*pFileBuf, bmiHeader.biCompression);
  OdPlatformStreamer::wrInt32(*pFileBuf, bmiHeader.biSizeImage);
  OdPlatformStreamer::wrInt32(*pFileBuf, bmiHeader.biXPelsPerMeter);
  OdPlatformStreamer::wrInt32(*pFileBuf, bmiHeader.biYPelsPerMeter);
  OdPlatformStreamer::wrInt32(*pFileBuf, bmiHeader.biClrUsed);
  OdPlatformStreamer::wrInt32(*pFileBuf, bmiHeader.biClrImportant);

  //OdUInt32 tmp = 0;
  //pFileBuf->putBytes(&tmp, 4);
  //tmp = 0xffffff;
  //pFileBuf->putBytes(&tmp, 4);

  pFileBuf->putBytes(data, bmiHeader.biSizeImage);

  pFileBuf->rewind();

  return pFileBuf;
}