示例#1
0
	bool SmtSmfRasLayer::Fetch(eSmtFetchType type)
	{
		if (!IsOpen())
			return false;

		char szImgUrl[MAX_LAYER_FILE_NAME];

		SmtDataSourceInfo info;
		m_pOwnerDs->GetInfo(info);

		sprintf(szImgUrl,"%s",m_szLayerFileName);

		long lCodeType = GetImageTypeByFileExt(m_szLayerFileName);

		CxImage img;

		if (img.Load(szImgUrl,lCodeType))
		{
			BYTE *pImageBuf = NULL;
			long lImageBufSize = 0;
			fRect fLocRect;

			m_pMemLayer->GetRasterRect(fLocRect);
	
			fLocRect.rt.y  = fLocRect.lb.y + fLocRect.Width()*img.GetHeight()/img.GetWidth();

			if (img.Encode(pImageBuf,lImageBufSize,lCodeType))
			{
				return (SMT_ERR_NONE == m_pMemLayer->CreaterRaster((const char *)pImageBuf,lImageBufSize,fLocRect,lCodeType));
			}
		}

		return false;
	}
示例#2
0
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;
}
// If handle_clipboard_request() fails, its caller sends VD_AGENT_CLIPBOARD message with type
// VD_AGENT_CLIPBOARD_NONE and no data, so the client will know the request failed.
bool VDAgent::handle_clipboard_request(VDAgentClipboardRequest* clipboard_request)
{
    VDAgentMessage* msg;
    uint32_t msg_size;
    UINT format;
    HANDLE clip_data;
    uint8_t* new_data = NULL;
    long new_size = 0;
    size_t len = 0;
    CxImage image;
    VDAgentClipboard* clipboard = NULL;

    if (_clipboard_owner != owner_guest) {
        vd_printf("Received clipboard request from client while clipboard is not owned by guest");
        return false;
    }
    if (!(format = get_clipboard_format(clipboard_request->type))) {
        vd_printf("Unsupported clipboard type %u", clipboard_request->type);
        return false;
    }
    // on encoding only, we use HBITMAP to keep the correct palette
    if (format == CF_DIB) {
        format = CF_BITMAP;
    }
    if (!IsClipboardFormatAvailable(format) || !OpenClipboard(_hwnd)) {
        return false;
    }
    if (!(clip_data = GetClipboardData(format))) {
        CloseClipboard();
        return false;
    }
    switch (clipboard_request->type) {
    case VD_AGENT_CLIPBOARD_UTF8_TEXT:
        if (!(new_data = (uint8_t*)GlobalLock(clip_data))) {
            break;
        }
        len = wcslen((LPCWSTR)new_data);
        new_size = WideCharToMultiByte(CP_UTF8, 0, (LPCWSTR)new_data, (int)len, NULL, 0, NULL, NULL);
        break;
    case VD_AGENT_CLIPBOARD_IMAGE_PNG:
    case VD_AGENT_CLIPBOARD_IMAGE_BMP: {
        DWORD cximage_format = get_cximage_format(clipboard_request->type);
        HPALETTE pal = 0;

        ASSERT(cximage_format);
        if (IsClipboardFormatAvailable(CF_PALETTE)) {
            pal = (HPALETTE)GetClipboardData(CF_PALETTE);
        }
        if (!image.CreateFromHBITMAP((HBITMAP)clip_data, pal)) {
            vd_printf("Image create from handle failed");
            break;
        }
        if (!image.Encode(new_data, new_size, cximage_format)) {
            vd_printf("Image encode to type %u failed", clipboard_request->type);
            break;
        }
        vd_printf("Image encoded to %lu bytes", new_size);
        break;
    }
    }

    if (!new_size) {
        vd_printf("clipboard is empty");
        goto handle_clipboard_request_fail;
    }
    if ((_max_clipboard != -1) && (new_size > _max_clipboard)) {
        vd_printf("clipboard is too large (%ld > %d), discarding",
                  new_size, _max_clipboard);
        goto handle_clipboard_request_fail;
    }

    msg_size = sizeof(VDAgentMessage) + sizeof(VDAgentClipboard) + new_size;
    msg = (VDAgentMessage*)new uint8_t[msg_size];
    msg->protocol = VD_AGENT_PROTOCOL;
    msg->type = VD_AGENT_CLIPBOARD;
    msg->opaque = 0;
    msg->size = (uint32_t)(sizeof(VDAgentClipboard) + new_size);
    clipboard = (VDAgentClipboard*)msg->data;
    clipboard->type = clipboard_request->type;

    switch (clipboard_request->type) {
    case VD_AGENT_CLIPBOARD_UTF8_TEXT:
        WideCharToMultiByte(CP_UTF8, 0, (LPCWSTR)new_data, (int)len, (LPSTR)clipboard->data,
                            new_size, NULL, NULL);
        GlobalUnlock(clip_data);
        break;
    case VD_AGENT_CLIPBOARD_IMAGE_PNG:
    case VD_AGENT_CLIPBOARD_IMAGE_BMP:
        memcpy(clipboard->data, new_data, new_size);
        image.FreeMemory(new_data);
        break;
    }
    CloseClipboard();
    write_clipboard(msg, msg_size);
    delete[] (uint8_t *)msg;
    return true;

handle_clipboard_request_fail:
    if (clipboard_request->type == VD_AGENT_CLIPBOARD_UTF8_TEXT) {
       GlobalUnlock(clip_data);
    }
    CloseClipboard();
    return false;
}