| OLD | NEW |
| (Empty) |
| 1 /* | |
| 2 * Copyright (c) 2006, 2007, 2008, Google Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions are | |
| 6 * met: | |
| 7 * | |
| 8 * * Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * * Redistributions in binary form must reproduce the above | |
| 11 * copyright notice, this list of conditions and the following disclaimer | |
| 12 * in the documentation and/or other materials provided with the | |
| 13 * distribution. | |
| 14 * * Neither the name of Google Inc. nor the names of its | |
| 15 * contributors may be used to endorse or promote products derived from | |
| 16 * this software without specific prior written permission. | |
| 17 * | |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 */ | |
| 30 | |
| 31 #include "config.h" | |
| 32 #include "public/platform/Platform.h" | |
| 33 | |
| 34 #include "SkTypeface.h" | |
| 35 #include "platform/LayoutTestSupport.h" | |
| 36 #include "platform/RuntimeEnabledFeatures.h" | |
| 37 #include "platform/fonts/harfbuzz/FontPlatformDataHarfBuzz.h" | |
| 38 #include "public/platform/linux/WebFontInfo.h" | |
| 39 #include "public/platform/linux/WebFontRenderStyle.h" | |
| 40 #include "public/platform/linux/WebSandboxSupport.h" | |
| 41 | |
| 42 namespace WebCore { | |
| 43 | |
| 44 static SkPaint::Hinting skiaHinting = SkPaint::kNormal_Hinting; | |
| 45 static bool useSkiaAutoHint = true; | |
| 46 static bool useSkiaBitmaps = true; | |
| 47 static bool useSkiaAntiAlias = true; | |
| 48 static bool useSkiaSubpixelRendering = false; | |
| 49 | |
| 50 void FontPlatformData::setHinting(SkPaint::Hinting hinting) | |
| 51 { | |
| 52 skiaHinting = hinting; | |
| 53 } | |
| 54 | |
| 55 void FontPlatformData::setAutoHint(bool useAutoHint) | |
| 56 { | |
| 57 useSkiaAutoHint = useAutoHint; | |
| 58 } | |
| 59 | |
| 60 void FontPlatformData::setUseBitmaps(bool useBitmaps) | |
| 61 { | |
| 62 useSkiaBitmaps = useBitmaps; | |
| 63 } | |
| 64 | |
| 65 void FontPlatformData::setAntiAlias(bool useAntiAlias) | |
| 66 { | |
| 67 useSkiaAntiAlias = useAntiAlias; | |
| 68 } | |
| 69 | |
| 70 void FontPlatformData::setSubpixelRendering(bool useSubpixelRendering) | |
| 71 { | |
| 72 useSkiaSubpixelRendering = useSubpixelRendering; | |
| 73 } | |
| 74 | |
| 75 void FontPlatformData::setupPaint(SkPaint* paint, GraphicsContext*) const | |
| 76 { | |
| 77 paint->setAntiAlias(m_style.useAntiAlias); | |
| 78 paint->setHinting(static_cast<SkPaint::Hinting>(m_style.hintStyle)); | |
| 79 paint->setEmbeddedBitmapText(m_style.useBitmaps); | |
| 80 paint->setAutohinted(m_style.useAutoHint); | |
| 81 if (m_style.useAntiAlias) | |
| 82 paint->setLCDRenderText(m_style.useSubpixelRendering); | |
| 83 | |
| 84 // TestRunner specifically toggles the subpixel positioning flag. | |
| 85 if (RuntimeEnabledFeatures::subpixelFontScalingEnabled() | |
| 86 && paint->getHinting() != SkPaint::kFull_Hinting | |
| 87 && !LayoutTestSupport::isRunningLayoutTest()) | |
| 88 paint->setSubpixelText(true); | |
| 89 else | |
| 90 paint->setSubpixelText(m_style.useSubpixelPositioning); | |
| 91 | |
| 92 const float ts = m_textSize >= 0 ? m_textSize : 12; | |
| 93 paint->setTextSize(SkFloatToScalar(ts)); | |
| 94 paint->setTypeface(m_typeface.get()); | |
| 95 paint->setFakeBoldText(m_syntheticBold); | |
| 96 paint->setTextSkewX(m_syntheticItalic ? -SK_Scalar1 / 4 : 0); | |
| 97 } | |
| 98 | |
| 99 | |
| 100 static inline void getRenderStyleForStrike(FontRenderStyle& fontRenderStyle, con
st char* font, int sizeAndStyle) | |
| 101 { | |
| 102 blink::WebFontRenderStyle style; | |
| 103 | |
| 104 #if OS(ANDROID) | |
| 105 style.setDefaults(); | |
| 106 #else | |
| 107 if (!font || !*font) | |
| 108 style.setDefaults(); // It's probably a webfont. Take the system default
s. | |
| 109 else if (blink::Platform::current()->sandboxSupport()) | |
| 110 blink::Platform::current()->sandboxSupport()->getRenderStyleForStrike(fo
nt, sizeAndStyle, &style); | |
| 111 else | |
| 112 blink::WebFontInfo::renderStyleForStrike(font, sizeAndStyle, &style); | |
| 113 #endif | |
| 114 | |
| 115 style.toFontRenderStyle(&fontRenderStyle); | |
| 116 } | |
| 117 | |
| 118 void FontPlatformData::querySystemForRenderStyle(bool useSkiaSubpixelPositioning
) | |
| 119 { | |
| 120 getRenderStyleForStrike(m_style, m_family.data(), (((int)m_textSize) << 2) |
(m_typeface->style() & 3)); | |
| 121 | |
| 122 // Fix FontRenderStyle::NoPreference to actual styles. | |
| 123 if (m_style.useAntiAlias == FontRenderStyle::NoPreference) | |
| 124 m_style.useAntiAlias = useSkiaAntiAlias; | |
| 125 | |
| 126 if (!m_style.useHinting) | |
| 127 m_style.hintStyle = SkPaint::kNo_Hinting; | |
| 128 else if (m_style.useHinting == FontRenderStyle::NoPreference) | |
| 129 m_style.hintStyle = skiaHinting; | |
| 130 | |
| 131 if (m_style.useBitmaps == FontRenderStyle::NoPreference) | |
| 132 m_style.useBitmaps = useSkiaBitmaps; | |
| 133 if (m_style.useAutoHint == FontRenderStyle::NoPreference) | |
| 134 m_style.useAutoHint = useSkiaAutoHint; | |
| 135 if (m_style.useAntiAlias == FontRenderStyle::NoPreference) | |
| 136 m_style.useAntiAlias = useSkiaAntiAlias; | |
| 137 if (m_style.useSubpixelRendering == FontRenderStyle::NoPreference) | |
| 138 m_style.useSubpixelRendering = useSkiaSubpixelRendering; | |
| 139 | |
| 140 // TestRunner specifically toggles the subpixel positioning flag. | |
| 141 if (m_style.useSubpixelPositioning == FontRenderStyle::NoPreference | |
| 142 || LayoutTestSupport::isRunningLayoutTest()) | |
| 143 m_style.useSubpixelPositioning = useSkiaSubpixelPositioning; | |
| 144 } | |
| 145 | |
| 146 bool FontPlatformData::defaultUseSubpixelPositioning() | |
| 147 { | |
| 148 return FontDescription::subpixelPositioning(); | |
| 149 } | |
| 150 | |
| 151 } // namespace WebCore | |
| OLD | NEW |