inline Global::_BlipType SaveImageToFileFromDIB(unsigned char* data, int size, const std::wstring& file_name)//without ext
{
Global::_BlipType result = Global::msoblipERROR;
CBgraFrame oFrame;
int offset = 0, biSizeImage = 0;
__BITMAPINFOHEADER * header = (__BITMAPINFOHEADER*)data;
if (!header) return result;
result = Global::msoblipDIB;
if (header->biWidth > 100000 || header->biHeight > 100000 || header->biSize != 40)
{
__BITMAPCOREHEADER * header_core = (__BITMAPCOREHEADER *)data;
if (header_core->bcSize != 12)
{
result = Global::msoblipWMF;
}
else
{
offset = 12; //sizeof(BITMAPCOREHEADER)
oFrame.put_Height (header_core->bcHeight );
oFrame.put_Width (header_core->bcWidth );
int sz_bitmap = header_core->bcHeight * header_core->bcWidth * header_core->bcBitCount/ 8;
//if (header_core->bcWidth % 2 != 0 && sz_bitmap < size - offset)
// header_core->bcWidth++;
///???? todooo непонятно .. в biff5 нужно флипать картинку, в biff8 не ясно ( -
int stride = -(size - offset) / header_core->bcHeight;
oFrame.put_Stride (stride/*header_core->bcBitCount * header_core->bcWidth /8 */);
biSizeImage = size - offset;
if (-stride >= header_core->bcWidth && header_core->bcBitCount >=24 )
{
result = Global::msoblipPNG;
}
}
}
else
{
offset = 40; //sizeof(BITMAPINFOHEADER)
oFrame.put_Height (header->biHeight );
oFrame.put_Width (header->biWidth );
int sz_bitmap = header->biHeight * header->biWidth * header->biBitCount/ 8;
//if (header->biWidth % 2 != 0 && sz_bitmap < size -offset)
// header->biWidth++;
int stride = -(size - offset) / header->biHeight;
if (-stride >= header->biWidth && header->biBitCount >= 24)
{
result = Global::msoblipPNG;
}
oFrame.put_Stride (stride/*header->biBitCount * header->biWidth /8*/);
biSizeImage = header->biSizeImage > 0 ? header->biSizeImage : (size - offset);
}
//------------------------------------------------------------------------------------------
if (result == Global::msoblipPNG)
{
oFrame.put_Data((unsigned char*)data + offset);
if (!oFrame.SaveFile(file_name + L".png", 4/*CXIMAGE_FORMAT_PNG*/))
result = Global::msoblipERROR;
oFrame.put_Data(NULL);
}
else if (result == Global::msoblipWMF)
{
NSFile::CFileBinary file;
if (file.CreateFileW(file_name + L".wmf"))
{
file.WriteFile((BYTE*)data, size);
file.CloseFile();
}
}
else if (biSizeImage > 0)
{
NSFile::CFileBinary file;
if (file.CreateFileW(file_name + L".bmp"))
{
_UINT16 vtType = 0x4D42; file.WriteFile((BYTE*)&vtType, 2);
_UINT32 dwLen = biSizeImage; file.WriteFile((BYTE*)&dwLen, 4);
_UINT32 dwRes = 0; file.WriteFile((BYTE*)&dwRes, 4);
_UINT32 dwOffset = 2; file.WriteFile((BYTE*)&dwOffset, 4);
file.WriteFile((BYTE*)data, size);
file.CloseFile();
}
}
return result;
}
