[Libreoffice-commits] core.git: Branch 'feature/commonsallayout' - 2 commits - configure.ac vcl/inc vcl/Library_vcl.mk vcl/source
Akash Jain
akash96j at gmail.com
Fri Jun 17 14:56:40 UTC 2016
Rebased ref, commits from common ancestor:
commit 1f9cba0539e22bcfd92bff4dde9c04625a839914
Author: Akash Jain <akash96j at gmail.com>
Date: Tue Jun 14 14:52:16 2016 +0530
Modify HARFBUZZ_LIBS flag if compiling with MSVC
MSVC has a different format for specifying libs to be linked.
Therefore, modify libs flag accordingly.
Change-Id: Ib919c4b6b0cdac47a8a6ad6730d20e19bc05b0d4
diff --git a/configure.ac b/configure.ac
index b9565a9..e0993b4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -9219,6 +9219,9 @@ if test "$with_harfbuzz" = "yes" -o \( $_os != WINNT -a $_os != Darwin -a $_os !
else
libo_CHECK_SYSTEM_MODULE([harfbuzz],[HARFBUZZ],[harfbuzz >= 0.9.10],[-I${WORKDIR}/UnpackedTarball/harfbuzz/src],["-L${WORKDIR}/UnpackedTarball/harfbuzz/src/.libs -lharfbuzz -lharfbuzz-icu"])
fi
+ if test "$COM" = "MSC"; then # override the above
+ HARFBUZZ_LIBS="${WORKDIR}/UnpackedTarball/harfbuzz/src/.libs/libharfbuzz.lib ${WORKDIR}/UnpackedTarball/harfbuzz/src/.libs/libharfbuzz-icu.lib"
+ fi
else
AC_MSG_RESULT([no])
fi
commit 9934d2bd43b9cf5d756a8c1b83e37819422dd36f
Author: Akash Jain <akash96j at gmail.com>
Date: Tue Jun 14 14:38:12 2016 +0530
New CommonSalLayout class created
diff --git a/vcl/Library_vcl.mk b/vcl/Library_vcl.mk
index a43402b..026a42d 100644
--- a/vcl/Library_vcl.mk
+++ b/vcl/Library_vcl.mk
@@ -299,6 +299,8 @@ $(eval $(call gb_Library_add_exception_objects,vcl,\
vcl/source/gdi/textlayout \
vcl/source/gdi/virdev \
vcl/source/gdi/wall \
+ vcl/source/gdi/scrptrun \
+ vcl/source/gdi/CommonSalLayout \
vcl/source/bitmap/bitmapfilter \
vcl/source/bitmap/bitmapscalesuper \
vcl/source/bitmap/BitmapScaleConvolution \
diff --git a/vcl/inc/CommonSalLayout.hxx b/vcl/inc/CommonSalLayout.hxx
new file mode 100755
index 0000000..0d941f9
--- /dev/null
+++ b/vcl/inc/CommonSalLayout.hxx
@@ -0,0 +1,55 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifdef _WIN32
+#include "win/winlayout.hxx"
+#elif defined(MACOSX) || defined(IOS)
+// TODO add quartz headers
+#else
+#include "unx/freetype_glyphcache.hxx"
+#endif
+
+#include <sallayout.hxx>
+#include <hb-icu.h>
+#include <hb-ot.h>
+
+class CommonSalLayout : public GenericSalLayout
+{
+ hb_face_t* mpHBFace;
+ FontSelectPattern maFontSelData;
+ css::uno::Reference<css::i18n::XBreakIterator> mxBreak;
+#ifdef _WIN32
+ HDC mhDC;
+#endif
+
+public:
+#if defined(_WIN32)
+ explicit CommonSalLayout(HDC, const WinFontFace&, WinFontInstance&);
+#elif defined(MACOSX) || defined(IOS)
+ explicit CommonSalLayout(const CoreTextStyle*);
+#else
+ explicit CommonSalLayout(ServerFont&);
+#endif
+ virtual ~CommonSalLayout();
+ void SetNeedFallback(ImplLayoutArgs&, sal_Int32, bool);
+ void AdjustLayout(ImplLayoutArgs&) override;
+ virtual bool LayoutText(ImplLayoutArgs&) override;
+ virtual void DrawText( SalGraphics& ) const override;
+ std::shared_ptr<vcl::TextLayoutCache> CreateTextLayoutCache(OUString const&) const override;
+};
diff --git a/vcl/source/gdi/CommonSalLayout.cxx b/vcl/source/gdi/CommonSalLayout.cxx
new file mode 100755
index 0000000..c01b2eb
--- /dev/null
+++ b/vcl/source/gdi/CommonSalLayout.cxx
@@ -0,0 +1,401 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed
+ * with this work for additional information regarding copyright
+ * ownership. The ASF licenses this file to you under the Apache
+ * License, Version 2.0 (the "License"); you may not use this file
+ * except in compliance with the License. You may obtain a copy of
+ * the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include "CommonSalLayout.hxx"
+
+#include <vcl/unohelp.hxx>
+#include <scrptrun.h>
+#include <com/sun/star/i18n/CharacterIteratorMode.hpp>
+#include <i18nlangtag/mslangid.hxx>
+#include <limits>
+
+#if defined(_WIN32)
+struct WinFontFaceWithHDC
+{
+ const WinFontFace& mrWinFontFace;
+ HDC mhDC;
+ WinFontFaceWithHDC(const WinFontFace& rWFF, HDC hDC)
+ : mrWinFontFace(rWFF),
+ mhDC(hDC)
+ {}
+};
+#endif
+
+static hb_blob_t *getFontTable(hb_face_t* /*face*/, hb_tag_t nTableTag, void* pUserData)
+{
+ char pTagName[5];
+ pTagName[0] = (char)(nTableTag >> 24);
+ pTagName[1] = (char)(nTableTag >> 16);
+ pTagName[2] = (char)(nTableTag >> 8);
+ pTagName[3] = (char)(nTableTag);
+ pTagName[4] = 0;
+
+ sal_uLong nLength=0;
+ const unsigned char* pBuffer = nullptr;
+#if defined(_WIN32)
+ WinFontFaceWithHDC* pWinFontFaceWithHDC = static_cast<WinFontFaceWithHDC*>(pUserData);
+ nLength = pWinFontFaceWithHDC->mrWinFontFace.GetTable(pTagName, pBuffer, pWinFontFaceWithHDC->mhDC);
+#elif defined(MACOSX) || defined(IOS)
+ CoreTextFontFace* pFont = static_cast<CoreTextFontFace*>(pUserData);
+ nLength = pFont->GetFontTable(pTagName, pBuffer);
+#else
+ ServerFont* pFont = static_cast<ServerFont*>(pUserData);
+ pBuffer = pFont->GetTable(pTagName, &nLength);
+#endif
+
+ hb_blob_t* pBlob = nullptr;
+ if (pBuffer != nullptr)
+ pBlob = hb_blob_create(reinterpret_cast<const char*>(pBuffer), nLength, HB_MEMORY_MODE_READONLY, const_cast<unsigned char *>(pBuffer), nullptr);
+
+ return pBlob;
+}
+
+static hb_unicode_funcs_t* getUnicodeFuncs()
+{
+ static hb_unicode_funcs_t* ufuncs = hb_unicode_funcs_create(hb_icu_get_unicode_funcs());
+#if !HB_VERSION_ATLEAST(1, 1, 0)
+ hb_unicode_funcs_set_decompose_compatibility_func(ufuncs, unicodeDecomposeCompatibility, nullptr, nullptr);
+#endif
+ return ufuncs;
+}
+
+#if defined(_WIN32)
+CommonSalLayout::CommonSalLayout(HDC hDC, const WinFontFace& rWinFontFace, WinFontInstance& rWinFontInstance)
+: mhDC(hDC),
+ mpHBFace(nullptr),
+ maFontSelData(rWinFontInstance.maFontSelData)
+{
+ WinFontFaceWithHDC rWinFontFaceWithHDC(rWinFontFace, mhDC);
+ mpHBFace = hb_face_create_for_tables(getFontTable, &rWinFontFaceWithHDC, nullptr);
+}
+
+#elif defined(MACOSX) || defined(IOS)
+CommonSalLayout::CommonSalLayout(CoreTextStyle* rCoreTextStyle)
+: mpHBFace(nullptr),
+ maFontSelData(rCoreTextStyle)
+{
+ mpHBFace = hb_face_create_for_tables(getFontTable, rCoreTextStyle->mpFontData, nullptr);
+ //XXX modify coretextstyle to also store fsd
+}
+
+#else
+CommonSalLayout::CommonSalLayout(ServerFont& rServerFont)
+: mpHBFace(nullptr),
+ maFontSelData(rServerFont.GetFontSelData())
+{
+ mpHBFace = hb_face_create_for_tables(getFontTable, &rServerFont, nullptr);
+}
+#endif
+
+CommonSalLayout::~CommonSalLayout()
+{
+ hb_face_destroy(mpHBFace);
+}
+
+struct HbScriptRun
+{
+ int32_t mnMin;
+ int32_t mnEnd;
+ hb_script_t maScript;
+
+ HbScriptRun(int32_t nMin, int32_t nEnd, UScriptCode aScript)
+ : mnMin(nMin), mnEnd(nEnd),
+ maScript(hb_icu_script_to_script(aScript))
+ {}
+};
+
+typedef std::vector<HbScriptRun> HbScriptRuns;
+
+namespace vcl {
+ struct Run
+ {
+ int32_t nStart;
+ int32_t nEnd;
+ UScriptCode nCode;
+ Run(int32_t nStart_, int32_t nEnd_, UScriptCode nCode_)
+ : nStart(nStart_), nEnd(nEnd_), nCode(nCode_)
+ {}
+ };
+
+ class TextLayoutCache
+ {
+ public:
+ std::vector<vcl::Run> runs;
+ TextLayoutCache(sal_Unicode const* pStr, sal_Int32 const nEnd)
+ {
+ vcl::ScriptRun aScriptRun(
+ reinterpret_cast<const UChar *>(pStr),
+ nEnd);
+ while (aScriptRun.next())
+ {
+ runs.push_back(Run(aScriptRun.getScriptStart(),
+ aScriptRun.getScriptEnd(), aScriptRun.getScriptCode()));
+ }
+ }
+ };
+}
+
+std::shared_ptr<vcl::TextLayoutCache> CommonSalLayout::CreateTextLayoutCache(OUString const& rString) const
+{
+ return std::make_shared<vcl::TextLayoutCache>(rString.getStr(), rString.getLength());
+}
+
+void CommonSalLayout::SetNeedFallback(ImplLayoutArgs& rArgs, sal_Int32 nCharPos, bool bRightToLeft)
+{
+ if (nCharPos < 0)
+ return;
+
+ using namespace ::com::sun::star;
+
+ if (!mxBreak.is())
+ mxBreak = vcl::unohelper::CreateBreakIterator();
+
+ lang::Locale aLocale(rArgs.maLanguageTag.getLocale());
+
+ //if position nCharPos is missing in the font, grab the entire grapheme and
+ //mark all glyphs as missing so the whole thing is rendered with the same
+ //font
+ sal_Int32 nDone;
+ sal_Int32 nGraphemeStartPos =
+ mxBreak->previousCharacters(rArgs.mrStr, nCharPos+1, aLocale,
+ i18n::CharacterIteratorMode::SKIPCELL, 1, nDone);
+ sal_Int32 nGraphemeEndPos =
+ mxBreak->nextCharacters(rArgs.mrStr, nCharPos, aLocale,
+ i18n::CharacterIteratorMode::SKIPCELL, 1, nDone);
+
+ rArgs.NeedFallback(nGraphemeStartPos, nGraphemeEndPos, bRightToLeft);
+}
+
+void CommonSalLayout::AdjustLayout(ImplLayoutArgs& rArgs)
+{
+ GenericSalLayout::AdjustLayout(rArgs);
+
+ // apply asian kerning if the glyphs are not already formatted
+ if( (rArgs.mnFlags & SalLayoutFlags::KerningAsian)
+ && !(rArgs.mnFlags & SalLayoutFlags::Vertical) )
+ if( (rArgs.mpDXArray != nullptr) || (rArgs.mnLayoutWidth != 0) )
+ ApplyAsianKerning(rArgs.mrStr);
+//XXX Kashida
+}
+
+void CommonSalLayout::DrawText( SalGraphics& ) const
+{
+ //call platform dependent DrawText functions
+}
+
+bool CommonSalLayout::LayoutText(ImplLayoutArgs& rArgs)
+{
+ //XXX WinLayout object DOESN'T derive from GSL
+ GenericSalLayout& rLayout = *this;
+
+ hb_font_t* pHBFont = hb_font_create(mpHBFace);
+ hb_font_set_ppem(pHBFont, maFontSelData.mnWidth, maFontSelData.mnHeight);
+ hb_font_set_scale(pHBFont, maFontSelData.mnWidth << 6, maFontSelData.mnHeight << 6);
+ hb_ot_font_set_funcs(pHBFont);
+
+ int nGlyphCapacity = 2 * (rArgs.mnEndCharPos - rArgs.mnMinCharPos);
+ rLayout.Reserve(nGlyphCapacity);
+
+ const int nLength = rArgs.mrStr.getLength();
+ const sal_Unicode *pStr = rArgs.mrStr.getStr();
+
+ std::unique_ptr<vcl::TextLayoutCache> pNewScriptRun;
+ vcl::TextLayoutCache const* pTextLayout;
+ if (rArgs.m_pTextLayoutCache)
+ {
+ pTextLayout = rArgs.m_pTextLayoutCache; // use cache!
+ }
+ else
+ {
+ pNewScriptRun.reset(new vcl::TextLayoutCache(pStr, rArgs.mnEndCharPos));
+ pTextLayout = pNewScriptRun.get();
+ }
+
+ Point aCurrPos(0, 0);
+ while (true)
+ {
+ int nBidiMinRunPos, nBidiEndRunPos;
+ bool bRightToLeft;
+ if (!rArgs.GetNextRun(&nBidiMinRunPos, &nBidiEndRunPos, &bRightToLeft))
+ break;
+
+ // Find script subruns.
+ int nCurrentPos = nBidiMinRunPos;
+ HbScriptRuns aScriptSubRuns;
+ size_t k = 0;
+ for (; k < pTextLayout->runs.size(); ++k)
+ {
+ vcl::Run const& rRun(pTextLayout->runs[k]);
+ if (rRun.nStart <= nCurrentPos && nCurrentPos < rRun.nEnd)
+ {
+ break;
+ }
+ }
+
+ while (nCurrentPos < nBidiEndRunPos && k < pTextLayout->runs.size())
+ {
+ int32_t nMinRunPos = nCurrentPos;
+ int32_t nEndRunPos = std::min(pTextLayout->runs[k].nEnd, nBidiEndRunPos);
+ HbScriptRun aRun(nMinRunPos, nEndRunPos, pTextLayout->runs[k].nCode);
+ aScriptSubRuns.push_back(aRun);
+
+ nCurrentPos = nEndRunPos;
+ ++k;
+ }
+
+ // RTL subruns should be reversed to ensure that final glyph order is
+ // correct.
+ if (bRightToLeft)
+ std::reverse(aScriptSubRuns.begin(), aScriptSubRuns.end());
+
+ for (HbScriptRuns::iterator it = aScriptSubRuns.begin(); it != aScriptSubRuns.end(); ++it)
+ {
+ int nMinRunPos = it->mnMin;
+ int nEndRunPos = it->mnEnd;
+ int nRunLen = nEndRunPos - nMinRunPos;
+ hb_script_t aHbScript = it->maScript;
+ // hb_language_from_string() accept ISO639-3 language tag except for Chinese.
+ LanguageTag &rTag = rArgs.maLanguageTag;
+ OString sLanguage = OUStringToOString( MsLangId::isChinese(rTag.getLanguageType()) ? rTag.getBcp47():rTag.getLanguage() , RTL_TEXTENCODING_UTF8 );
+
+ int nHbFlags = HB_BUFFER_FLAGS_DEFAULT;
+ if (nMinRunPos == 0)
+ nHbFlags |= HB_BUFFER_FLAG_BOT; /* Beginning-of-text */
+ if (nEndRunPos == nLength)
+ nHbFlags |= HB_BUFFER_FLAG_EOT; /* End-of-text */
+
+ hb_buffer_t *pHbBuffer = hb_buffer_create();
+ static hb_unicode_funcs_t* pHbUnicodeFuncs = getUnicodeFuncs();
+#if !HB_VERSION_ATLEAST(1, 1, 0)
+ hb_buffer_set_unicode_funcs(pHbBuffer, pHbUnicodeFuncs);
+#endif
+ hb_buffer_set_direction(pHbBuffer, bRightToLeft ? HB_DIRECTION_RTL: HB_DIRECTION_LTR);
+ hb_buffer_set_script(pHbBuffer, aHbScript);
+ hb_buffer_set_language(pHbBuffer, hb_language_from_string(sLanguage.getStr(), -1));
+ hb_buffer_set_flags(pHbBuffer, (hb_buffer_flags_t) nHbFlags);
+ hb_buffer_add_utf16(
+ pHbBuffer, reinterpret_cast<uint16_t const *>(pStr), nLength,
+ nMinRunPos, nRunLen);
+#if HB_VERSION_ATLEAST(0, 9, 42)
+ hb_buffer_set_cluster_level(pHbBuffer, HB_BUFFER_CLUSTER_LEVEL_MONOTONE_CHARACTERS);
+#endif
+ hb_shape(pHBFont, pHbBuffer, nullptr, 0);
+
+ int nRunGlyphCount = hb_buffer_get_length(pHbBuffer);
+ hb_glyph_info_t *pHbGlyphInfos = hb_buffer_get_glyph_infos(pHbBuffer, nullptr);
+ hb_glyph_position_t *pHbPositions = hb_buffer_get_glyph_positions(pHbBuffer, nullptr);
+
+ sal_Int32 nGraphemeStartPos = std::numeric_limits<sal_Int32>::max();
+ sal_Int32 nGraphemeEndPos = std::numeric_limits<sal_Int32>::min();
+ com::sun::star::lang::Locale aLocale(rArgs.maLanguageTag.getLocale());
+ if (!mxBreak.is())
+ mxBreak = vcl::unohelper::CreateBreakIterator();
+
+ for (int i = 0; i < nRunGlyphCount; ++i) {
+ int32_t nGlyphIndex = pHbGlyphInfos[i].codepoint;
+ int32_t nCharPos = pHbGlyphInfos[i].cluster;
+
+ // if needed request glyph fallback by updating LayoutArgs
+ if (!nGlyphIndex)
+ {
+ SetNeedFallback(rArgs, nCharPos, bRightToLeft);
+ if (SalLayoutFlags::ForFallback & rArgs.mnFlags)
+ continue;
+ }
+
+ sal_Int32 indexUtf16 = nCharPos;
+ sal_UCS4 aChar = rArgs.mrStr.iterateCodePoints(&indexUtf16, 0);
+
+ bool bInCluster = false;
+ if(bRightToLeft && (nCharPos < nGraphemeStartPos))
+ {
+ sal_Int32 nDone;
+ nGraphemeStartPos = mxBreak->previousCharacters(rArgs.mrStr, nCharPos+1, aLocale,
+ com::sun::star::i18n::CharacterIteratorMode::SKIPCELL, 1, nDone);
+ }
+ else if(!bRightToLeft && (nCharPos >= nGraphemeEndPos))
+ {
+ sal_Int32 nDone;
+ nGraphemeEndPos = mxBreak->nextCharacters(rArgs.mrStr, nCharPos, aLocale,
+ com::sun::star::i18n::CharacterIteratorMode::SKIPCELL, 1, nDone);
+ }
+ else
+ {
+ bInCluster = true;
+ }
+
+ long nGlyphFlags = 0;
+ if (bRightToLeft)
+ nGlyphFlags |= GlyphItem::IS_RTL_GLYPH;
+
+ if (bInCluster)
+ nGlyphFlags |= GlyphItem::IS_IN_CLUSTER;
+
+ bool bDiacritic = false;
+ if (hb_ot_layout_has_glyph_classes(mpHBFace))
+ {
+ // the font has GDEF table
+ bool bMark = hb_ot_layout_get_glyph_class(mpHBFace, nGlyphIndex) == HB_OT_LAYOUT_GLYPH_CLASS_MARK;
+ if (bMark && pHbPositions[i].x_advance == 0)
+ bDiacritic = true;
+ }
+ else
+ {
+#if HB_VERSION_ATLEAST(0, 9, 42)
+ if(hb_unicode_general_category (pHbUnicodeFuncs, aChar) == HB_UNICODE_GENERAL_CATEGORY_NON_SPACING_MARK)
+ bDiacritic = true;
+#else
+ // the font lacks GDEF table
+ if (pHbPositions[i].x_advance == 0)
+ bDiacritic = true;
+#endif
+ }
+
+ if (bDiacritic)
+ nGlyphFlags |= GlyphItem::IS_DIACRITIC;
+
+ int32_t nXOffset = pHbPositions[i].x_offset >> 6;
+ int32_t nYOffset = pHbPositions[i].y_offset >> 6;
+ int32_t nXAdvance = pHbPositions[i].x_advance >> 6;
+ int32_t nYAdvance = pHbPositions[i].y_advance >> 6;
+
+ Point aNewPos = Point(aCurrPos.X() + nXOffset, -(aCurrPos.Y() + nYOffset));
+ // Definiton of glyphitem may have to change to support system graphics lib
+ const GlyphItem aGI(nCharPos, nGlyphIndex, aNewPos, nGlyphFlags, nXAdvance, nXOffset);
+ rLayout.AppendGlyph(aGI);
+
+ aCurrPos.X() += nXAdvance;
+ aCurrPos.Y() += nYAdvance;
+ }
+
+ hb_buffer_destroy(pHbBuffer);
+ }
+ }
+
+ hb_font_destroy(pHBFont);
+
+ rLayout.SortGlyphItems();
+
+ /* XXX seems to be broken
+ if((rArgs.mpDXArray || rArgs.mnLayoutWidth)
+ && ((maHbScript == HB_SCRIPT_ARABIC) || (maHbScript == HB_SCRIPT_SYRIAC)))
+ rArgs.mnFlags |= SalLayoutFlags::KashidaJustification;
+ */
+ return true;
+}
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