__declspec(dllexport) bool LoadImage(const char *file, unsigned int maxwidth, unsigned int maxheight, ImageInfo *info)
{
if (!file || !info) return false;
if (IsDir(file))
return false;
// load the image
DWORD dwImageType = GetImageType(file);
CxImage *image = new CxImage(dwImageType);
if (!image) return false;
int actualwidth = maxwidth;
int actualheight = maxheight;
try
{
if (!image->Load(file, dwImageType, actualwidth, actualheight) || !image->IsValid())
{
#if !defined(_LINUX) && !defined(__APPLE__)
int nErr = GetLastError();
#else
int nErr = errno;
#endif
printf("PICTURE::LoadImage: Unable to open image: %s Error:%s (%d)\n", file, image->GetLastError(),nErr);
delete image;
return false;
}
}
catch (...)
{
printf("PICTURE::LoadImage: Unable to open image: %s\n", file);
delete image;
return false;
}
// ok, now resample the image down if necessary
if (ResampleKeepAspect(*image, maxwidth, maxheight) < 0)
{
printf("PICTURE::LoadImage: Unable to resample picture: %s\n", file);
delete image;
return false;
}
// make sure our image is 24bit minimum
image->IncreaseBpp(24);
// fill in our struct
info->width = image->GetWidth();
info->height = image->GetHeight();
info->originalwidth = actualwidth;
info->originalheight = actualheight;
memcpy(&info->exifInfo, image->GetExifInfo(), sizeof(EXIFINFO));
// create our texture
info->context = image;
info->texture = image->GetBits();
info->alpha = image->AlphaGetBits();
return (info->texture != NULL);
};
BOOL CSonicImage::Load(HGLOBAL hGlobal, DWORD dwSize)
{
if(m_gif.LoadGif(hGlobal, dwSize) == 1)
{
if(PrepareMemDC(m_gif.GetWidth(), m_gif.GetHeight()) == FALSE)
{
m_gif.Clear();
return FALSE;
}
m_gif.Draw(m_Dib.GetSafeHdc());
}
else
{
BYTE * pData = (BYTE *)GlobalLock(hGlobal);
CxImage img;
img.Decode(pData, dwSize, 0);
GlobalUnlock(hGlobal);
if(PrepareMemDC(img.GetWidth(), img.GetHeight()) == FALSE)
{
img.Clear();
return FALSE;
}
if(!img.AlphaIsValid())
{
img.Draw(m_Dib.GetSafeHdc());
CSSE::DoOr(0xff000000, m_Dib.GetBits(), m_Dib.GetSize());
}
else
{
if(img.GetBpp() != 24)
{
img.Clear();
return FALSE;
}
BYTE * pSrc = img.GetBits();
BYTE * pAlpha = img.AlphaGetBits();
BYTE * pMyBits = m_Dib.GetBits();
int nLineTail = m_nWidth % 4;
for(int i = 0; i < m_nHeight; i++)
{
for(int j = 0; j < m_nWidth; j++)
{
*pMyBits++ = *pSrc++;
*pMyBits++ = *pSrc++;
*pMyBits++ = *pSrc++;
*pMyBits++ = *pAlpha++;
}
pSrc += nLineTail;
}
EnableAlphaChannel();
}
img.Clear();
}
return TRUE;
}
__declspec(dllexport) bool LoadImageFromMemory(const BYTE *buffer, unsigned int size, const char *mime, unsigned int maxwidth, unsigned int maxheight, ImageInfo *info)
{
if (!buffer || !size || !mime || !info) return false;
// load the image
DWORD dwImageType = CXIMAGE_FORMAT_UNKNOWN;
if (strlen(mime))
dwImageType = GetImageType(mime);
if (dwImageType == CXIMAGE_FORMAT_UNKNOWN)
dwImageType = DetectFileType(buffer, size);
if (dwImageType == CXIMAGE_FORMAT_UNKNOWN)
{
printf("PICTURE::LoadImageFromMemory: Unable to determine image type.");
return false;
}
CxImage *image = new CxImage(dwImageType);
if (!image)
return false;
int actualwidth = maxwidth;
int actualheight = maxheight;
try
{
bool success = image->Decode((BYTE*)buffer, size, dwImageType, actualwidth, actualheight);
if (!success && dwImageType != CXIMAGE_FORMAT_UNKNOWN)
{ // try to decode with unknown imagetype
success = image->Decode((BYTE*)buffer, size, CXIMAGE_FORMAT_UNKNOWN);
}
if (!success || !image->IsValid())
{
printf("PICTURE::LoadImageFromMemory: Unable to decode image. Error:%s\n", image->GetLastError());
delete image;
return false;
}
}
catch (...)
{
printf("PICTURE::LoadImageFromMemory: Unable to decode image.");
delete image;
return false;
}
// ok, now resample the image down if necessary
if (ResampleKeepAspect(*image, maxwidth, maxheight) < 0)
{
printf("PICTURE::LoadImage: Unable to resample picture\n");
delete image;
return false;
}
// make sure our image is 24bit minimum
image->IncreaseBpp(24);
// fill in our struct
info->width = image->GetWidth();
info->height = image->GetHeight();
info->originalwidth = actualwidth;
info->originalheight = actualheight;
memcpy(&info->exifInfo, image->GetExifInfo(), sizeof(EXIFINFO));
// create our texture
info->context = image;
info->texture = image->GetBits();
info->alpha = image->AlphaGetBits();
return (info->texture != NULL);
};
