bool CxImageIG::decodeSubLayer (CxFile& file, IGLibrary::IGLayer *pSubLayerOwner, IGSECTIONHEADER_LAYER *pLayerSection)
{
CxImage cxSubLayer;
if (!file.Seek (pLayerSection->commonHeader.nFirstByteOffset, SEEK_SET))
throw IGEXCEPTION (CxImageIGException, "decodeSubLayer", "file.Seek failed");
// read sub-layer pixels
BYTE *pBufImg = new BYTE [pLayerSection->commonHeader.nSizeBuf];
file.Read (pBufImg, pLayerSection->commonHeader.nSizeBuf, 1);
if (!cxSubLayer.Decode (pBufImg, pLayerSection->commonHeader.nSizeBuf, CXIMAGEIG_LAYERFORMAT))
throw IGEXCEPTION (CxImageIGException, "decodeSubLayer", "cxSubLayer.Decode failed");
delete [] pBufImg;
// read sub-layer alpha
cxSubLayer.AlphaCreate (255);
file.Read (cxSubLayer.pAlpha, cxSubLayer.GetWidth() * cxSubLayer.GetHeight(), 1);
// decode sub-layer into layer
BYTE *pLayerBits = NULL;
BYTE *pSubLayerBits = NULL;
for (int i = 0; i < pLayerSection->ptSize.y; i++)
{
pSubLayerBits = cxSubLayer.GetBits (i);
pLayerBits = pSubLayerOwner->GetBits (pLayerSection->ptOffset.y + i) + 3 * pLayerSection->ptOffset.x;
::memcpy (pLayerBits, pSubLayerBits, (pLayerSection->ptSize.x) * 3);
}
BYTE *pLayerAlpha = NULL;
BYTE *pSubLayerAlpha = NULL;
for (int i = 0; i < (pLayerSection->ptSize.y); i++)
{
pLayerAlpha = pSubLayerOwner->AlphaGetPointer (pLayerSection->ptOffset.x, pLayerSection->ptOffset.y + i);
pSubLayerAlpha = cxSubLayer.AlphaGetPointer (0, i);
::memcpy (pLayerAlpha, pSubLayerAlpha, (pLayerSection->ptSize.x));
}
return true;
}
__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;
}
bool CxImageIG::DecodeLayer (CxFile &file, int nLayerIdx, int nLayerPos, RECT *p_rcSubLayer, bool bUndo, int nSubLayerId)
{
// read current header
IGHEADER igHeader;
if (!decodeHeader (&file, &igHeader))
throw IGEXCEPTION (CxImageIGException, "DecodeLayer", "decodeHeader failed");
if (nLayerIdx < 0)
throw IGEXCEPTION (CxImageIGException, "DecodeLayer", "nLayerIdx failed");
if ((nLayerPos < 0) || (nLayerPos >= info.nNumLayers))
throw IGEXCEPTION (CxImageIGException, "DecodeLayer", "nLayerPos failed");
IGSECTIONHEADER_LAYER *pLayerSections = new IGSECTIONHEADER_LAYER [CXIMAGEIG_MAX_NBLAYERS];
IGSECTIONHEADER_SELECTION *pSelectionSections = new IGSECTIONHEADER_SELECTION [CXIMAGEIG_MAX_NBSELECTIONS];
if (!decodeSections (&file, &igHeader, &pLayerSections[0], &pSelectionSections[0]))
throw IGEXCEPTION (CxImageIGException, "DecodeLayer", "decodeSections failed");
IGLibrary::IGLayer *pLayer = GetLayer (nLayerPos);
if (!pLayer)
throw IGEXCEPTION (CxImageIGException, "DecodeLayer", "GetLayer failed");
CxImage cxSubLayer;
CxImage *pDecodingLayer = p_rcSubLayer ? &cxSubLayer : pLayer;
bool bIsSubLayerOwner = bUndo && p_rcSubLayer; // no need to find sub-layer owner in do mode
int nLayerSectionIndex = findLayerSectionIndex (&igHeader, pLayerSections, nLayerIdx, bIsSubLayerOwner);
if ((nLayerSectionIndex < 0) || (nLayerSectionIndex >= igHeader.nNbLayers))
throw IGEXCEPTION (CxImageIGException, "DecodeLayer", "findLayerSectionIndex failed");
// in undo mode, if a sub-layer owner is found, decode it
if (bUndo){
if (bIsSubLayerOwner)
{
// decode sub-layer owner
if (!DecodeLayer (file, pLayerSections [nLayerSectionIndex].commonHeader.nId, nLayerPos))
throw IGEXCEPTION (CxImageIGException, "DecodeLayer", "DecodeLayer failed");
// decode sub-layers
int nSubLayerSectionIndex = findLayerSectionIndex (&igHeader, pLayerSections, nLayerIdx, bIsSubLayerOwner);
if ((nSubLayerSectionIndex < 0) || (nSubLayerSectionIndex >= igHeader.nNbLayers))
throw IGEXCEPTION (CxImageIGException, "DecodeLayer", "findLayerSectionIndex failed");
RECT rcSubLayer;
rcSubLayer.left = pLayerSections[nSubLayerSectionIndex].ptOffset.x;
rcSubLayer.right = pLayerSections[nSubLayerSectionIndex].ptOffset.x + pLayerSections[nSubLayerSectionIndex].ptSize.x - 1;
rcSubLayer.top = pLayerSections[nSubLayerSectionIndex].ptOffset.y;
rcSubLayer.bottom = pLayerSections[nSubLayerSectionIndex].ptOffset.y + pLayerSections[nSubLayerSectionIndex].ptSize.y - 1;
return DecodeLayer (file, pLayerSections [nLayerSectionIndex].commonHeader.nId, nLayerPos, &rcSubLayer, true, nLayerIdx);
}
}
if (!file.Seek (pLayerSections [nLayerSectionIndex].commonHeader.nFirstByteOffset, SEEK_SET))
throw IGEXCEPTION (CxImageIGException, "DecodeLayer", "file.Seek failed");
// read layer pixels
BYTE *pBufImg = new BYTE [pLayerSections [nLayerSectionIndex].commonHeader.nSizeBuf];
file.Read (pBufImg, pLayerSections [nLayerSectionIndex].commonHeader.nSizeBuf, 1);
if (!pDecodingLayer->Decode (pBufImg, pLayerSections [nLayerSectionIndex].commonHeader.nSizeBuf, CXIMAGEIG_LAYERFORMAT))
throw IGEXCEPTION (CxImageIGException, "DecodeLayer", "pDecodingLayer->Decode failed");
delete [] pBufImg;
// read layer alpha
pDecodingLayer->AlphaCreate (255);
file.Read (pDecodingLayer->pAlpha, pDecodingLayer->GetWidth() * pDecodingLayer->GetHeight(), 1);
int nSubLayerWidth = 0;
int nSubLayerHeight = 0;
if (p_rcSubLayer)
{
// decode sub-layer
nSubLayerWidth = p_rcSubLayer->right - p_rcSubLayer->left + 1;
nSubLayerHeight = p_rcSubLayer->bottom - p_rcSubLayer->top + 1;
BYTE *pLayerBits = NULL;
BYTE *pSubLayerBits = NULL;
for (int i = 0; i < nSubLayerHeight; i++)
{
// if undo, then sub-layer == original layer
pSubLayerBits = bUndo ? pDecodingLayer->GetBits (p_rcSubLayer->top + i) + 3 * p_rcSubLayer->left : pDecodingLayer->GetBits (i);
pLayerBits = pLayer->GetBits (p_rcSubLayer->top + i) + 3 * p_rcSubLayer->left;
::memcpy (pLayerBits, pSubLayerBits, nSubLayerWidth * 3);
}
BYTE *pLayerAlpha = NULL;
BYTE *pSubLayerAlpha = NULL;
for (int i = 0; i < nSubLayerHeight; i++)
{
pLayerAlpha = pLayer->AlphaGetPointer (p_rcSubLayer->left, p_rcSubLayer->top + i);
pSubLayerAlpha = bUndo ? pDecodingLayer->AlphaGetPointer (p_rcSubLayer->left, p_rcSubLayer->top + i) : pDecodingLayer->AlphaGetPointer (0, i);
::memcpy (pLayerAlpha, pSubLayerAlpha, nSubLayerWidth);
}
if (bUndo)
{
// original layer is now decoded. decode sub-layers
bIsSubLayerOwner = false;
int nMaxSubLayerSectionIndex = findLayerSectionIndex (&igHeader, pLayerSections, nSubLayerId, bIsSubLayerOwner); // we always have bIsSubLayerOwner = false, its used for the reference only
if (nMaxSubLayerSectionIndex < 0)
throw IGEXCEPTION (CxImageIGException, "DecodeLayer", "findLayerSectionIndex failed");
if (nMaxSubLayerSectionIndex <= igHeader.nNbLayers)
{
for (int i = 0; i < pLayerSections [nLayerSectionIndex].nSubLayers; i++)
{
if (pLayerSections [nLayerSectionIndex].pnSubLayers [i] <= nMaxSubLayerSectionIndex)
{
if (!decodeSubLayer (file, pLayer, &pLayerSections [pLayerSections [nLayerSectionIndex].pnSubLayers [i]]))
throw IGEXCEPTION (CxImageIGException, "DecodeLayer", "decodeSubLayer failed");
}
}
}
}
}
else
{
pLayer->info.xOffset = pLayerSections [nLayerSectionIndex].ptOffset.x;
pLayer->info.yOffset = pLayerSections [nLayerSectionIndex].ptOffset.y;
}
pLayer->SetId (nLayerIdx);
pLayer->UpdateImageParameters();
delete [] pLayerSections;
delete [] pSelectionSections;
return true;
}
bool CxImageIG::EncodeLayer (const wchar_t *pcwFilePath, int nLayerIdx, int nLayerPos, RECT *p_rcSubLayer, int nSubLayerOwnerId)
{
CxIOFile file;
if (!file.Open (pcwFilePath, L"r+b"))
throw IGEXCEPTION (CxImageIGException, "EncodeLayer", "file.Open failed");
// read current header
IGHEADER igHeader;
if (!decodeHeader (&file, &igHeader))
throw IGEXCEPTION (CxImageIGException, "EncodeLayer", "decodeHeader failed");
IGSECTIONHEADER_LAYER *pLayerSections = new IGSECTIONHEADER_LAYER[CXIMAGEIG_MAX_NBLAYERS];
IGSECTIONHEADER_SELECTION *pSelectionSections = new IGSECTIONHEADER_SELECTION[CXIMAGEIG_MAX_NBSELECTIONS];
if (!decodeSections (&file, &igHeader, &pLayerSections[0], &pSelectionSections[0]))
throw IGEXCEPTION (CxImageIGException, "EncodeLayer", "decodeSections failed");
IGLibrary::IGLayer *pLayer = GetLayer (nLayerPos);
if (!pLayer)
throw IGEXCEPTION (CxImageIGException, "EncodeLayer", "GetLayer failed");
_ASSERTE ((int)pLayer->GetId() == nLayerIdx && "CxImageIG::EncodeLayer FAILED");
bool bIsSubLayerOwner = false;
int nLayerSectionIndex = findLayerSectionIndex (&igHeader, pLayerSections, nLayerIdx, bIsSubLayerOwner);
if (nLayerSectionIndex < 0)
throw IGEXCEPTION (CxImageIGException, "EncodeLayer", "findLayerSectionIndex failed");
if ((nLayerSectionIndex > igHeader.nNbLayers) || (nLayerSectionIndex >= CXIMAGEIG_MAX_NBLAYERS))
throw IGEXCEPTION (CxImageIGException, "EncodeLayer", "findLayerSectionIndex failed");
CxImage cxSubLayer;
CxImage *pEncodingLayer = pLayer;
int nSubLayerWidth = 0;
int nSubLayerHeight = 0;
if (p_rcSubLayer)
{
// Encode sub-layer
nSubLayerWidth = p_rcSubLayer->right - p_rcSubLayer->left + 1;
nSubLayerHeight = p_rcSubLayer->bottom - p_rcSubLayer->top + 1;
cxSubLayer.Create (nSubLayerWidth, nSubLayerHeight, 24);
cxSubLayer.AlphaCreate (255);
BYTE *pLayerBits = NULL;
BYTE *pSubLayerBits = NULL;
for (int i = 0; i < nSubLayerHeight; i++)
{
pSubLayerBits = cxSubLayer.GetBits (i);
pLayerBits = pLayer->GetBits (p_rcSubLayer->top + i) + 3 * p_rcSubLayer->left;
::memcpy (pSubLayerBits, pLayerBits, nSubLayerWidth * 3);
}
BYTE *pLayerAlpha = NULL;
BYTE *pSubLayerAlpha = NULL;
for (int i = 0; i < nSubLayerHeight; i++)
{
pLayerAlpha = pLayer->AlphaGetPointer (p_rcSubLayer->left, p_rcSubLayer->top + i);
pSubLayerAlpha = cxSubLayer.AlphaGetPointer (0, i);
::memcpy (pSubLayerAlpha, pLayerAlpha, nSubLayerWidth);
}
pEncodingLayer = &cxSubLayer;
int nSubLayerSectionIndex = findLayerSectionIndex (&igHeader, pLayerSections, nSubLayerOwnerId, bIsSubLayerOwner);
if (nSubLayerSectionIndex < 0)
throw IGEXCEPTION (CxImageIGException, "EncodeLayer", "findLayerSectionIndex failed");
pLayerSections [nSubLayerSectionIndex].pnSubLayers [pLayerSections [nSubLayerSectionIndex].nSubLayers++] = nLayerSectionIndex;
}
ProgressSetRange (pLayer->GetHeight(), 0);
ProgressSetMessage (L"Encoding layer...");
// fill layer offset and size
pLayerSections [nLayerSectionIndex].nSubLayers = 0;
pLayerSections [nLayerSectionIndex].ptOffset.x = p_rcSubLayer ? p_rcSubLayer->left : pLayer->info.xOffset;
pLayerSections [nLayerSectionIndex].ptOffset.y = p_rcSubLayer ? p_rcSubLayer->top : pLayer->info.yOffset;
pLayerSections [nLayerSectionIndex].ptSize.x = p_rcSubLayer ? p_rcSubLayer->right - p_rcSubLayer->left + 1 : pLayer->GetWidth();
pLayerSections [nLayerSectionIndex].ptSize.y = p_rcSubLayer ? p_rcSubLayer->bottom - p_rcSubLayer->top + 1 : pLayer->GetHeight();
if (nLayerSectionIndex == igHeader.nNbLayers)
pLayerSections [nLayerSectionIndex].commonHeader.nSectionId = (BYTE)igHeader.nNbSections;
pLayerSections [nLayerSectionIndex].commonHeader.nId = nLayerIdx;
pLayerSections [nLayerSectionIndex].commonHeader.eSectionType = IGSECTION_LAYER;
// set byte offset
if (igHeader.nNbSections == 0)
pLayerSections [nLayerSectionIndex].commonHeader.nFirstByteOffset = sizeof (IGHEADER) + sizeof (IGSECTIONHEADER_LAYER) * CXIMAGEIG_MAX_NBLAYERS + sizeof (IGSECTIONHEADER_SELECTION) * CXIMAGEIG_MAX_NBSELECTIONS;
else
pLayerSections [nLayerSectionIndex].commonHeader.nFirstByteOffset = findSectionFirstByteOffset (&igHeader, pLayerSections, pSelectionSections, pLayerSections [nLayerSectionIndex].commonHeader.nSectionId);
igHeader.nNbLayers = nLayerSectionIndex + 1;
if (igHeader.nNbSelections == 0)
{
igHeader.nNbSections = pLayerSections [nLayerSectionIndex].commonHeader.nSectionId + 1;
igHeader.nNbSelections = igHeader.nNbSections - igHeader.nNbLayers;
}
else
{
if (pSelectionSections [igHeader.nNbSelections - 1].commonHeader.nSectionId == pLayerSections [nLayerSectionIndex].commonHeader.nSectionId + 1)
igHeader.nNbSections = igHeader.nNbSelections + igHeader.nNbLayers;
else
{
igHeader.nNbSections = pLayerSections [nLayerSectionIndex].commonHeader.nSectionId + 1;
igHeader.nNbSelections = igHeader.nNbSections - igHeader.nNbLayers;
}
}
// write layer pixels
if (!file.Seek (pLayerSections [nLayerSectionIndex].commonHeader.nFirstByteOffset, SEEK_SET))
throw IGEXCEPTION (CxImageIGException, "EncodeLayer", "file.Seek failed");
// set max JPEG quality
float fCurQuality = pEncodingLayer->GetJpegQualityF();
pEncodingLayer->SetJpegQualityF (100.0f);
// JPEG encoding
BYTE *pBuf = new BYTE [CXIMAGEIG_INIT_LAYERSIZE];
CxMemFile memFile (pBuf, CXIMAGEIG_INIT_LAYERSIZE);
if (!pEncodingLayer->Encode (&memFile, CXIMAGEIG_LAYERFORMAT))
throw IGEXCEPTION (CxImageIGException, "EncodeLayer", "pEncodingLayer->Encode failed");
BYTE *pBufImg = memFile.GetBuffer();
long nSizeBufImg = memFile.Tell();
// reset JPEG quality
pEncodingLayer->SetJpegQualityF (fCurQuality);
file.Write (pBufImg, nSizeBufImg, 1);
delete [] pBufImg;
pLayerSections [nLayerSectionIndex].commonHeader.nSizeBuf = nSizeBufImg;
// write layer alpha
if (!pEncodingLayer->pAlpha)
pEncodingLayer->AlphaCreate(255);
int nNbPixels = pEncodingLayer->GetWidth() * pEncodingLayer->GetHeight();
file.Write (pEncodingLayer->pAlpha, nNbPixels, 1);
pLayerSections [nLayerSectionIndex].commonHeader.nEndByteOffset = pLayerSections [nLayerSectionIndex].commonHeader.nFirstByteOffset + nSizeBufImg + nNbPixels;
// write new headers
if (!encodeHeader (&file, &igHeader))
throw IGEXCEPTION (CxImageIGException, "EncodeLayer", "encodeHeader failed");
if (!encodeSections (&file, &igHeader, pLayerSections, pSelectionSections))
throw IGEXCEPTION (CxImageIGException, "EncodeLayer", "encodeSections failed");
delete [] pLayerSections;
delete [] pSelectionSections;
return true;
}
//////////////////////////////////////////////////////////////////////////////
// CMainFrame message handlers
void CMainFrame::OnEditPaste()
{
CDemoDoc *NewDoc=(CDemoDoc*)((CDemoApp*)AfxGetApp())->demoTemplate->OpenDocumentFile(NULL);
if (NewDoc)
{
if (OpenClipboard())
{
HANDLE hData=NULL;
if (hData = GetClipboardData(((CDemoApp*)AfxGetApp())->GetCF())){ //custom CxImage object
CxImage *newima = new CxImage();
DWORD dwSize = GlobalSize(hData);
if (dwSize) {
BYTE *lpVoid = (BYTE *)GlobalLock(hData);
newima->UnDump(lpVoid);
GlobalUnlock(lpVoid);
}
NewDoc->image = newima;
} else if (hData = GetClipboardData(CF_DIB)){ // check if bitmap
CxImage *newima = new CxImage();
newima->CreateFromHANDLE(hData);
NewDoc->image = newima;
} else {
#if CXIMAGE_SUPPORT_WMF
if (hData = GetClipboardData(CF_ENHMETAFILE)) //check if metafile
{
HENHMETAFILE hMeta = (HENHMETAFILE)hData;
ENHMETAHEADER emh;
GetEnhMetaFileHeader(hMeta, sizeof(emh), &emh);
int cx,cy;
cx = (int)((emh.rclBounds.right - emh.rclBounds.left)/2.54);
cy = (int)((emh.rclBounds.bottom - emh.rclBounds.top)/2.54);
HDC hDC0 = ::GetDC(0); // screen dc
HBITMAP hBitmap = CreateCompatibleBitmap(hDC0, cx, cy);
HDC hDC = CreateCompatibleDC(hDC0); // memory dc compatible with screen
::ReleaseDC(0, hDC0); // don't need anymore. get rid of it.
if (hDC && hBitmap){
RECT rc = {0,0,cx,cy};
int bpp = ::GetDeviceCaps(hDC, BITSPIXEL);
HBITMAP hBitmapOld = (HBITMAP)SelectObject(hDC, hBitmap);
// paint the background
DWORD dwBack = RGB(255, 255, 255); //GetSysColor(COLOR_WINDOW);
DWORD OldColor = SetBkColor(hDC, dwBack);
ExtTextOut(hDC, 0, 0, ETO_OPAQUE, &rc, NULL, 0, NULL);
SetBkColor(hDC, OldColor);
// Play the Metafile into Memory DC
BOOL bRet = PlayEnhMetaFile(hDC, hMeta, &rc);
SelectObject(hDC, hBitmapOld);
CxImage *newima = new CxImage();
if(bRet && newima->Create(cx, cy, bpp, CXIMAGE_FORMAT_WMF)){
bRet = GetDIBits(hDC, hBitmap, 0, (UINT)cy, newima->GetBits(),
(LPBITMAPINFO)newima->GetDIB(), DIB_RGB_COLORS);
NewDoc->image = newima;
}
else
{
delete newima;
}
}
if (hBitmap) DeleteObject(hBitmap);
if (hDC) DeleteDC(hDC);
}
#endif
}
}
CloseClipboard();
CString s;
s.Format(_T("Clipboard Image %d"),((CDemoApp*)AfxGetApp())->m_nDocCount++);
NewDoc->SetTitle(s);
NewDoc->UpdateAllViews(0,WM_USER_NEWIMAGE);
NewDoc->UpdateStatusBar();
}
}
__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);
};
// return number of faces and score
void detectFaces(const CxImage& img, std::list <Face>& lFaces, int nRot)
{
if (cascade_el == NULL || cascade_er == NULL || cascade_f == NULL || cascade_m == NULL || cascade_n == NULL)
init();
CxImage imgRotated (img);
imgRotated.Rotate180();
IplImage *pIplImage = cvCreateImageHeader (cvSize (img.GetWidth(), img.GetHeight()), 8, img.GetBpp() / 8);
pIplImage->imageDataOrigin = (char*)imgRotated.GetDIB();
pIplImage->imageData = (char*)imgRotated.GetBits();
CvMemStorage *storage;
/* setup memory storage, needed by the object detector */
storage = cvCreateMemStorage(0);
assert(cascade_f && cascade_el && cascade_er && cascade_m && cascade_n && storage);
/* haar detection for faces */
CvSeq *pFaces = cvHaarDetectObjects(
pIplImage, cascade_f, storage,
1.2, 2, CV_HAAR_DO_CANNY_PRUNING, cvSize( 40, 40 ) );
if (pFaces->total == 0)
return;
CvSeq seqFaces (*pFaces);
list <CvRect> lrFaces;
for(int idxFace = 0; idxFace < seqFaces.total; idxFace++ ) {
CvRect *r = (CvRect*)cvGetSeqElem(&seqFaces, idxFace);
if (r)
lrFaces.push_back (*r);
}
/* haar detection for eyes */
list<pair <RECT, RECT>> lpairEyes;
detect_eyes (storage, pIplImage, lpairEyes);
/* haar detection for mouths */
list<RECT> lMouths;
detect_mouths (storage, pIplImage, lMouths);
/* haar detection for noses */
list<RECT> lNoses;
detect_noses (storage, pIplImage, lNoses);
for(list <CvRect>::iterator itFace = lrFaces.begin(); itFace != lrFaces.end(); ++itFace) {
CvRect r (*itFace);
CvRect rFace (*itFace);
rFace.x = img.GetWidth() - r.x - r.width;
rFace.y = img.GetHeight() - r.y - r.height;
RECT rcFace;
rcFace.left = img.GetWidth() - r.x - r.width - 10; rcFace.right = img.GetWidth() - r.x + 10;
rcFace.top = img.GetHeight() - r.y - r.height - 10; rcFace.bottom = img.GetHeight() - r.y + 10;
/* detect current eyes */
pair <RECT, RECT> pairEyes;
match_eyes_with_face (lpairEyes, rFace, pairEyes);
/* detect current mouth */
RECT rcMouth;
match_mouths_with_face (lMouths, rFace, pairEyes, rcMouth);
/* detect current nose */
RECT rcNose;
match_noses_with_face (lNoses, rFace, pairEyes, rcMouth, rcNose);
lFaces.push_back (Face (rcFace, pairEyes, rcMouth, rcNose, nRot));
}
Face::adjustRectFaces(lFaces);
cvReleaseMemStorage (&storage);
cvReleaseImageHeader (&pIplImage);
}
