blob: 72e25ff4891b79a7461d104ad381a5393351731c [file] [log] [blame]
/*
* Copyright (C) 2016 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "GlyphPage.h"
#if USE(DIRECT2D)
#include "DirectWriteUtilities.h"
#include "Font.h"
#include "TextAnalyzerHelper.h"
#include <dwrite_3.h>
namespace WebCore {
bool GlyphPage::fill(UChar* buffer, unsigned bufferLength)
{
if (bufferLength > GlyphPage::size)
return false;
const Font& font = this->font();
bool haveGlyphs = false;
COMPtr<IDWriteTextAnalyzer> analyzer;
HRESULT hr = DirectWrite::factory()->CreateTextAnalyzer(&analyzer);
RELEASE_ASSERT(SUCCEEDED(hr));
auto& fontPlatformData = font.platformData();
UChar localeName[LOCALE_NAME_MAX_LENGTH + 1] = { };
int localeLength = GetUserDefaultLocaleName(reinterpret_cast<LPWSTR>(&localeName), LOCALE_NAME_MAX_LENGTH);
RELEASE_ASSERT(localeLength <= LOCALE_NAME_MAX_LENGTH);
localeName[localeLength] = '\0';
TextAnalyzerHelper helper(reinterpret_cast<LPWSTR>(&localeName), reinterpret_cast<LPWSTR>(buffer), bufferLength);
hr = analyzer->AnalyzeScript(&helper, 0, bufferLength, &helper);
RELEASE_ASSERT(SUCCEEDED(hr));
unsigned returnedCount = 0;
Glyph localGlyphBuffer[GlyphPage::size];
Glyph clusterMap[GlyphPage::size];
Vector<DWRITE_SHAPING_TEXT_PROPERTIES> textProperties(GlyphPage::size);
Vector<DWRITE_SHAPING_GLYPH_PROPERTIES> glyphProperties(GlyphPage::size);
hr = analyzer->GetGlyphs(reinterpret_cast<LPCWSTR>(buffer), bufferLength, fontPlatformData.dwFontFace(), fontPlatformData.orientation() == FontOrientation::Vertical, false,
&helper.m_analysis, nullptr, nullptr, nullptr, nullptr, 0, GlyphPage::size, clusterMap, textProperties.data(),
localGlyphBuffer, glyphProperties.data(), &returnedCount);
if (!SUCCEEDED(hr))
return false;
for (unsigned i = 0; i < GlyphPage::size; i++) {
Glyph glyph = localGlyphBuffer[i];
if (!glyph)
setGlyphForIndex(i, 0);
else {
setGlyphForIndex(i, glyph);
haveGlyphs = true;
}
}
return haveGlyphs;
}
}
#endif