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https://github.com/ONLYOFFICE/core.git
synced 2026-07-20 03:55:47 +08:00
Сделана специальная конвертация Djvu в Pdf, при которой ч/б картинки и составные картинки передаются через специальные функции для достижения лучшей скорости и лучшего финального размера pdf-файла.
git-svn-id: svn://fileserver/activex/AVS/Sources/TeamlabOffice/trunk/ServerComponents@63314 954022d7-b5bf-4e40-9824-e11837661b57
This commit is contained in:
Ilya.Kirillov
committed by
Alexander Trofimov
Alexander Trofimov
parent
1c720f928d
commit
608c5df9fc
@ -12,6 +12,10 @@
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#include "../DesktopEditor/raster/BgraFrame.h"
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#include "../DesktopEditor/graphics/GraphicsRenderer.h"
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#include "../PdfWriter/PdfRenderer.h"
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#include "../DesktopEditor/raster/JBig2/source/Encoder/jbig2enc.h"
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#include "../DesktopEditor/raster/JBig2/source/LeptonLib/allheaders.h"
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#define VER_DPI 96
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#define HOR_DPI 96
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@ -58,7 +62,7 @@ namespace NSDjvu
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CDjVuFileImplementation::CDjVuFileImplementation()
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{
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m_pDoc = NULL;
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std::wstring wsTempPath = NSFile::CFileBinary::GetTempPathW();
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std::wstring wsTempPath = NSFile::CFileBinary::GetTempPath();
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wsTempPath += L"DJVU\\";
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m_wsTempDirectory = wsTempPath;
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NSDirectory::CreateDirectory(m_wsTempDirectory);
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@ -145,10 +149,15 @@ void CDjVuFileImplementation::DrawPageOnRenderer(IRenderer* pRende
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{
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CreateGrFrame(pRenderer, pPage, pBreak);
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}
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else if (c_nPDFWriter == lRendererType)
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{
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XmlUtils::CXmlNode oText = ParseText(pPage);
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CreatePdfFrame(pRenderer, pPage, nPageIndex, oText);
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}
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else
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{
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XmlUtils::CXmlNode text = ParseText(pPage);
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CreateFrame(pRenderer, pPage, nPageIndex, text);
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XmlUtils::CXmlNode oText = ParseText(pPage);
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CreateFrame(pRenderer, pPage, nPageIndex, oText);
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}
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}
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catch (...)
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@ -195,6 +204,31 @@ void CDjVuFileImplementation::ConvertToRaster(CApplicationFonts* p
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oFrame.SaveFile(wsDstPath, nImageType);
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RELEASEINTERFACE(pFontManager);
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}
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void CDjVuFileImplementation::ConvertToPdf(CApplicationFonts* pAppFonts, const std::wstring& wsDstPath)
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{
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CPdfRenderer oPdf(pAppFonts);
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bool bBreak = false;
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for (int nPageIndex = 0, nPagesCount = GetPagesCount(); nPageIndex < nPagesCount; nPageIndex++)
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{
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oPdf.NewPage();
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double dPageDpiX, dPageDpiY;
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double dWidth, dHeight;
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GetPageInfo(nPageIndex, &dWidth, &dHeight, &dPageDpiX, &dPageDpiY);
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dWidth *= 25.4 / dPageDpiX;
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dHeight *= 25.4 / dPageDpiY;
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oPdf.put_Width(dWidth);
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oPdf.put_Height(dHeight);
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DrawPageOnRenderer(&oPdf, nPageIndex, &bBreak);
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#ifdef _DEBUG
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printf("%d of %d pages\n", nPageIndex + 1, nPagesCount);
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#endif
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}
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oPdf.SaveToFile(wsDstPath);
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}
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void CDjVuFileImplementation::CreateFrame(IRenderer* pRenderer, GP<DjVuImage>& pPage, int nPage, XmlUtils::CXmlNode& text)
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{
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int nWidth = pPage->get_real_width();
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@ -398,6 +432,257 @@ void CDjVuFileImplementation::CreateFrame(IRenderer* pRenderer, GP
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pRenderer->DrawImage((IGrObject*)&oImage, 0, 0, dRendWidth, dRendHeight);
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pRenderer->EndCommand(c_nPageType);
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}
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void CDjVuFileImplementation::CreatePdfFrame(IRenderer* pRenderer, GP<DjVuImage>& pPage, int nPageIndex, XmlUtils::CXmlNode& oText)
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{
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double dPageDpiX, dPageDpiY;
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double dWidth, dHeight;
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GetPageInfo(nPageIndex, &dWidth, &dHeight, &dPageDpiX, &dPageDpiY);
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dWidth *= 25.4 / dPageDpiX;
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dHeight *= 25.4 / dPageDpiY;
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pRenderer->BeginCommand(c_nPageType);
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TextToRenderer(pRenderer, oText, 25.4 / pPage->get_dpi());
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LONG lImageWidth = pPage->get_real_width();
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LONG lImageHeight = pPage->get_real_height();
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CPdfRenderer* pPdf = (CPdfRenderer*)pRenderer;
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if (pPage->is_legal_photo())
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{
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BYTE* pBufferDst = new BYTE[4 * lImageHeight * lImageWidth];
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if (!pBufferDst)
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return;
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Aggplus::CImage oImage;
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oImage.Create(pBufferDst, lImageWidth, lImageHeight, 4 * lImageWidth);
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GRect oRectAll(0, 0, lImageWidth, lImageHeight);
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GP<GPixmap> pImage = pPage->get_pixmap(oRectAll, oRectAll);
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BYTE* pBuffer = pBufferDst;
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for (int j = lImageHeight - 1; j >= 0; --j)
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{
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GPixel* pLine = pImage->operator [](j);
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for (int i = 0; i < lImageWidth; ++i, pBuffer += 4, ++pLine)
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{
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pBuffer[0] = pLine->b;
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pBuffer[1] = pLine->g;
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pBuffer[2] = pLine->r;
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pBuffer[3] = 255;
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}
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}
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pRenderer->DrawImage((IGrObject*)&oImage, 0, 0, dWidth, dHeight);
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}
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else if (pPage->is_legal_compound())
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{
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GRect oRectAll(0, 0, lImageWidth, lImageHeight);
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GP<IW44Image> pIW44Image = pPage->get_bg44();
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if (NULL != pIW44Image)
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{
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int nBgWidth = pIW44Image->get_width();
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int nBgHeight = pIW44Image->get_height();
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GP<GPixmap> pBgImage = pIW44Image->get_pixmap();
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if (NULL != pBgImage)
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{
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BYTE* pBgBuffer = new BYTE[4 * nBgWidth * nBgHeight];
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if (!pBgBuffer)
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return;
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Aggplus::CImage oBgImage;
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oBgImage.Create(pBgBuffer, nBgWidth, nBgHeight, 4 * nBgWidth);
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BYTE* pBuffer = pBgBuffer;
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for (int j = nBgHeight - 1; j >= 0; --j)
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{
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GPixel* pLine = pBgImage->operator [](j);
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for (int i = 0; i < nBgWidth; ++i, pBuffer += 4, ++pLine)
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{
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pBuffer[0] = pLine->b;
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pBuffer[1] = pLine->g;
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pBuffer[2] = pLine->r;
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pBuffer[3] = 255;
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}
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}
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pRenderer->DrawImage((IGrObject*)&oBgImage, 0, 0, dWidth, dHeight);
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}
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}
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GP<GPixmap> pImage = pPage->get_fgpm();
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if (NULL == pImage)
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pImage = pPage->get_fg_pixmap(oRectAll);
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if (NULL != pImage)
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{
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unsigned int unPixmapH = pImage->rows();
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unsigned int unPixmapW = pImage->columns();
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BYTE* pBufferDst = new BYTE[4 * unPixmapH * unPixmapW];
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if (!pBufferDst)
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return;
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Aggplus::CImage oImage;
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oImage.Create(pBufferDst, unPixmapW, unPixmapH, 4 * unPixmapW);
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BYTE* pBuffer = pBufferDst;
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for (int j = unPixmapH - 1; j >= 0; --j)
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{
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GPixel* pLine = pImage->operator [](j);
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for (int i = 0; i < unPixmapW; ++i, pBuffer += 4, ++pLine)
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{
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pBuffer[0] = pLine->b;
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pBuffer[1] = pLine->g;
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pBuffer[2] = pLine->r;
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pBuffer[3] = 255;
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}
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}
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GP<GBitmap> pBitmap = pPage->get_bitmap(oRectAll, oRectAll, 4);
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Pix* pPix = pixCreate(lImageWidth, lImageHeight, 1);
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if (pPix)
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{
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for (int nY = 0; nY < lImageHeight; nY++)
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{
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BYTE* pLine = pBitmap->operator [](nY);
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for (int nX = 0; nX < lImageWidth; nX++, pLine++)
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{
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pixSetPixel(pPix, nX, lImageHeight - 1 - nY, *pLine);
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}
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}
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pPdf->DrawImageWith1bppMask((IGrObject*)&oImage, pPix, lImageWidth, lImageHeight, 0, 0, dWidth, dHeight);
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pixDestroy(&pPix);
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}
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}
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}
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else if (pPage->is_legal_bilevel())
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{
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GRect oRectAll(0, 0, lImageWidth, lImageHeight);
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GP<GBitmap> pBitmap = pPage->get_bitmap(oRectAll, oRectAll, 4);
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Pix* pPix = pixCreate(lImageWidth, lImageHeight, 1);
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if (pPix)
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{
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for (int nY = 0; nY < lImageHeight; nY++)
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{
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BYTE* pLine = pBitmap->operator [](nY);
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for (int nX = 0; nX < lImageWidth; nX++, pLine++)
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{
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pixSetPixel(pPix, nX, lImageHeight - 1 - nY, *pLine);
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}
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}
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pPdf->DrawImage1bpp(pPix, lImageWidth, lImageHeight, 0, 0, dWidth, dHeight);
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pixDestroy(&pPix);
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}
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}
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else
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{
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// <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>??
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//memset(pBufferDst, 0xFF, 4 * lImageWidth * lImageHeight);
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GRect oRectAll(0, 0, lImageWidth, lImageHeight);
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GP<GPixmap> pImage = pPage->get_pixmap(oRectAll, oRectAll);
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if (NULL != pImage)
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{
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BYTE* pBufferDst = new BYTE[4 * lImageHeight * lImageWidth];
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if (pBufferDst)
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{
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Aggplus::CImage oImage;
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oImage.Create(pBufferDst, lImageWidth, lImageHeight, 4 * lImageWidth);
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BYTE* pBuffer = pBufferDst;
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for (int j = lImageHeight - 1; j >= 0; --j)
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{
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GPixel* pLine = pImage->operator [](j);
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for (int i = 0; i < lImageWidth; ++i, pBuffer += 4, ++pLine)
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{
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pBuffer[0] = pLine->b;
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pBuffer[1] = pLine->g;
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pBuffer[2] = pLine->r;
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pBuffer[3] = 255;
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}
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}
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pRenderer->DrawImage((IGrObject*)&oImage, 0, 0, dWidth, dHeight);
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}
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}
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else
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{
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GP<GBitmap> pBitmap = pPage->get_bitmap(oRectAll, oRectAll, 4);
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if (NULL != pBitmap)
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{
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int nPaletteEntries = pBitmap->get_grays();
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if (nPaletteEntries <= 2)
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{
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Pix* pPix = pixCreate(lImageWidth, lImageHeight, 1);
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if (pPix)
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{
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for (int nY = 0; nY < lImageHeight; nY++)
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{
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BYTE* pLine = pBitmap->operator [](nY);
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for (int nX = 0; nX < lImageWidth; nX++, pLine++)
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{
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pixSetPixel(pPix, nX, lImageHeight - 1 - nY, *pLine);
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}
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}
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pPdf->DrawImage1bpp(pPix, lImageWidth, lImageHeight, 0, 0, dWidth, dHeight);
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pixDestroy(&pPix);
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}
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}
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else
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{
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BYTE* pBufferDst = new BYTE[4 * lImageHeight * lImageWidth];
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if (!pBufferDst)
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return;
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Aggplus::CImage oImage;
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oImage.Create(pBufferDst, lImageWidth, lImageHeight, 4 * lImageWidth);
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DWORD* palette = new DWORD[nPaletteEntries];
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// Create palette for the bitmap
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int color = 0xff0000;
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int decrement = color / (nPaletteEntries - 1);
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for (int i = 0; i < nPaletteEntries; ++i)
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{
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BYTE level = (BYTE)(color >> 16);
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palette[i] = (0xFF000000 | level << 16 | level << 8 | level);
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color -= decrement;
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}
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DWORD* pBuffer = (DWORD*)pBufferDst;
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for (int j = lImageHeight - 1; j >= 0; --j)
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{
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BYTE* pLine = pBitmap->operator [](j);
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for (int i = 0; i < lImageWidth; ++i, ++pBuffer, ++pLine)
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{
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if (*pLine < nPaletteEntries)
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{
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*pBuffer = palette[*pLine];
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}
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else
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{
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*pBuffer = palette[0];
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}
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}
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}
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RELEASEARRAYOBJECTS(palette);
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pRenderer->DrawImage((IGrObject*)&oImage, 0, 0, dWidth, dHeight);
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}
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}
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}
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}
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pRenderer->EndCommand(c_nPageType);
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}
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void CDjVuFileImplementation::CreateGrFrame(IRenderer* pRenderer, GP<DjVuImage>& pPage, bool* pBreak)
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{
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int nWidth = pPage->get_real_width();
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@ -580,7 +865,7 @@ XmlUtils::CXmlNode CDjVuFileImplementation::ParseText(GP<DjVuImage> pPage)
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void CDjVuFileImplementation::TextToRenderer(IRenderer* pRenderer, XmlUtils::CXmlNode oTextNode, double dKoef, bool isView)
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{
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// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (<28><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><> <20><><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD>)
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pRenderer->put_FontName(L"AVSEmptyFont");
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pRenderer->put_FontName(L"DjvuEmptyFont");
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CString csText = oTextNode.GetXml();
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XmlUtils::CXmlNodes oLinesNodes;
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oTextNode.GetNodes(L"LINE", oLinesNodes);
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@ -598,11 +883,11 @@ void CDjVuFileImplementation::TextToRenderer(IRenderer* pRenderer,
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CString csCoords = oWordNode.GetAttribute(L"coords");
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double arrCoords[4];
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ParseCoords(csCoords.GetBuffer(), arrCoords, dKoef);
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DrawText(pRenderer, arrCoords, csWord.GetBuffer());
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DrawPageText(pRenderer, arrCoords, csWord.GetBuffer());
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}
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}
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}
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void CDjVuFileImplementation::DrawText(IRenderer* pRenderer, double* pdCoords, const std::wstring& wsText)
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void CDjVuFileImplementation::DrawPageText(IRenderer* pRenderer, double* pdCoords, const std::wstring& wsText)
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{
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pRenderer->put_FontSize(pdCoords[1] - pdCoords[3]);
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pRenderer->CommandDrawText(wsText,
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