1 files changed, 151 insertions, 0 deletions
diff --git a/chromium/third_party/WebKit/Source/platform/fonts/linux/FontPlatformDataLinuxHarfBuzz.cpp b/chromium/third_party/WebKit/Source/platform/fonts/linux/FontPlatformDataLinuxHarfBuzz.cpp
new file mode 100644
index 00000000000..c05fa20be98
--- /dev/null
+++ b/chromium/third_party/WebKit/Source/platform/fonts/linux/FontPlatformDataLinuxHarfBuzz.cpp
@@ -0,0 +1,151 @@
+/*
+ * Copyright (c) 2006, 2007, 2008, Google 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:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * 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.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "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 THE COPYRIGHT
+ * OWNER 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 "public/platform/Platform.h"
+
+#include "SkTypeface.h"
+#include "platform/LayoutTestSupport.h"
+#include "platform/RuntimeEnabledFeatures.h"
+#include "platform/fonts/harfbuzz/FontPlatformDataHarfBuzz.h"
+#include "public/platform/linux/WebFontInfo.h"
+#include "public/platform/linux/WebFontRenderStyle.h"
+#include "public/platform/linux/WebSandboxSupport.h"
+
+namespace WebCore {
+
+static SkPaint::Hinting skiaHinting = SkPaint::kNormal_Hinting;
+static bool useSkiaAutoHint = true;
+static bool useSkiaBitmaps = true;
+static bool useSkiaAntiAlias = true;
+static bool useSkiaSubpixelRendering = false;
+
+void FontPlatformData::setHinting(SkPaint::Hinting hinting)
+{
+    skiaHinting = hinting;
+}
+
+void FontPlatformData::setAutoHint(bool useAutoHint)
+{
+    useSkiaAutoHint = useAutoHint;
+}
+
+void FontPlatformData::setUseBitmaps(bool useBitmaps)
+{
+    useSkiaBitmaps = useBitmaps;
+}
+
+void FontPlatformData::setAntiAlias(bool useAntiAlias)
+{
+    useSkiaAntiAlias = useAntiAlias;
+}
+
+void FontPlatformData::setSubpixelRendering(bool useSubpixelRendering)
+{
+    useSkiaSubpixelRendering = useSubpixelRendering;
+}
+
+void FontPlatformData::setupPaint(SkPaint* paint, GraphicsContext*) const
+{
+    paint->setAntiAlias(m_style.useAntiAlias);
+    paint->setHinting(static_cast<SkPaint::Hinting>(m_style.hintStyle));
+    paint->setEmbeddedBitmapText(m_style.useBitmaps);
+    paint->setAutohinted(m_style.useAutoHint);
+    if (m_style.useAntiAlias)
+        paint->setLCDRenderText(m_style.useSubpixelRendering);
+
+    // TestRunner specifically toggles the subpixel positioning flag.
+    if (RuntimeEnabledFeatures::subpixelFontScalingEnabled()
+        && paint->getHinting() != SkPaint::kFull_Hinting
+        && !isRunningLayoutTest())
+        paint->setSubpixelText(true);
+    else
+        paint->setSubpixelText(m_style.useSubpixelPositioning);
+
+    const float ts = m_textSize >= 0 ? m_textSize : 12;
+    paint->setTextSize(SkFloatToScalar(ts));
+    paint->setTypeface(m_typeface.get());
+    paint->setFakeBoldText(m_syntheticBold);
+    paint->setTextSkewX(m_syntheticItalic ? -SK_Scalar1 / 4 : 0);
+}
+
+
+static inline void getRenderStyleForStrike(FontRenderStyle& fontRenderStyle, const char* font, int sizeAndStyle)
+{
+    blink::WebFontRenderStyle style;
+
+#if OS(ANDROID)
+    style.setDefaults();
+#else
+    if (!font || !*font)
+        style.setDefaults(); // It's probably a webfont. Take the system defaults.
+    else if (blink::Platform::current()->sandboxSupport())
+        blink::Platform::current()->sandboxSupport()->getRenderStyleForStrike(font, sizeAndStyle, &style);
+    else
+        blink::WebFontInfo::renderStyleForStrike(font, sizeAndStyle, &style);
+#endif
+
+    style.toFontRenderStyle(&fontRenderStyle);
+}
+
+void FontPlatformData::querySystemForRenderStyle(bool useSkiaSubpixelPositioning)
+{
+    getRenderStyleForStrike(m_style, m_family.data(), (((int)m_textSize) << 2) | (m_typeface->style() & 3));
+
+    // Fix FontRenderStyle::NoPreference to actual styles.
+    if (m_style.useAntiAlias == FontRenderStyle::NoPreference)
+        m_style.useAntiAlias = useSkiaAntiAlias;
+
+    if (!m_style.useHinting)
+        m_style.hintStyle = SkPaint::kNo_Hinting;
+    else if (m_style.useHinting == FontRenderStyle::NoPreference)
+        m_style.hintStyle = skiaHinting;
+
+    if (m_style.useBitmaps == FontRenderStyle::NoPreference)
+        m_style.useBitmaps = useSkiaBitmaps;
+    if (m_style.useAutoHint == FontRenderStyle::NoPreference)
+        m_style.useAutoHint = useSkiaAutoHint;
+    if (m_style.useAntiAlias == FontRenderStyle::NoPreference)
+        m_style.useAntiAlias = useSkiaAntiAlias;
+    if (m_style.useSubpixelRendering == FontRenderStyle::NoPreference)
+        m_style.useSubpixelRendering = useSkiaSubpixelRendering;
+
+    // TestRunner specifically toggles the subpixel positioning flag.
+    if (m_style.useSubpixelPositioning == FontRenderStyle::NoPreference
+        || isRunningLayoutTest())
+        m_style.useSubpixelPositioning = useSkiaSubpixelPositioning;
+}
+
+bool FontPlatformData::defaultUseSubpixelPositioning()
+{
+    return FontDescription::subpixelPositioning();
+}
+
+} // namespace WebCore