/* * Copyright (C) 2005, 2008, 2010 Apple Inc. All rights reserved. * Copyright (C) 2006 Alexey Proskuryakov * * 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. * 3. Neither the name of Apple Computer, Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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. */ #ifdef UNSAFE_BUFFERS_BUILD // TODO(crbug.com/351564777): Remove this and convert code to safer constructs. #pragma allow_unsafe_buffers #endif #include "third_party/blink/renderer/platform/fonts/simple_font_data.h" #include <unicode/utf16.h> #include <algorithm> #include <memory> #include <utility> #include "base/memory/ptr_util.h" #include "base/numerics/byte_conversions.h" #include "build/build_config.h" #include "skia/ext/font_utils.h" #include "third_party/blink/renderer/platform/font_family_names.h" #include "third_party/blink/renderer/platform/fonts/font_description.h" #include "third_party/blink/renderer/platform/fonts/opentype/open_type_baseline_metrics.h" #include "third_party/blink/renderer/platform/fonts/opentype/open_type_vertical_data.h" #include "third_party/blink/renderer/platform/fonts/shaping/harfbuzz_face.h" #include "third_party/blink/renderer/platform/fonts/skia/skia_text_metrics.h" #include "third_party/blink/renderer/platform/wtf/allocator/partitions.h" #include "third_party/blink/renderer/platform/wtf/math_extras.h" #include "third_party/blink/renderer/platform/wtf/text/character_names.h" #include "third_party/blink/renderer/platform/wtf/text/unicode.h" #include "third_party/freetype_buildflags.h" #include "third_party/skia/include/core/SkFont.h" #include "third_party/skia/include/core/SkFontMetrics.h" #include "third_party/skia/include/core/SkPath.h" #include "third_party/skia/include/core/SkTypeface.h" #include "third_party/skia/include/core/SkTypes.h" #include "ui/gfx/geometry/rect_f.h" #include "ui/gfx/geometry/skia_conversions.h" #include "v8/include/v8.h" #if !BUILDFLAG(USE_SYSTEM_FREETYPE) #include "third_party/freetype/src/src/autofit/afws-decl.h" #endif namespace blink { constexpr float kSmallCapsFontSizeMultiplier = …; constexpr float kEmphasisMarkFontSizeMultiplier = …; #if !BUILDFLAG(USE_SYSTEM_FREETYPE) constexpr int32_t kFontObjectsMemoryConsumption = …; #else // sizeof(AF_LatinMetricsRec) = 2128 constexpr int32_t kFontObjectsMemoryConsumption = 2128; #endif SimpleFontData::SimpleFontData(const FontPlatformData* platform_data, const CustomFontData* custom_data, bool subpixel_ascent_descent, const FontMetricsOverride& metrics_override) : … { … } SimpleFontData::~SimpleFontData() { … } void SimpleFontData::PlatformInit(bool subpixel_ascent_descent, const FontMetricsOverride& metrics_override) { … } void SimpleFontData::PlatformGlyphInit() { … } const SimpleFontData* SimpleFontData::FontDataForCharacter(UChar32) const { … } Glyph SimpleFontData::GlyphForCharacter(UChar32 codepoint) const { … } bool SimpleFontData::IsSegmented() const { … } SimpleFontData* SimpleFontData::SmallCapsFontData( const FontDescription& font_description) const { … } SimpleFontData* SimpleFontData::EmphasisMarkFontData( const FontDescription& font_description) const { … } SimpleFontData* SimpleFontData::CreateScaledFontData( const FontDescription& font_description, float scale_factor) const { … } SimpleFontData* SimpleFontData::MetricsOverriddenFontData( const FontMetricsOverride& metrics_override) const { … } // Internal leadings can be distributed to ascent and descent. // ------------------------------------------- // | - Internal Leading (in ascent) // |-------------------------------- // Ascent - | | // | | // | | - Em height // ----------|--------------| // | | // Descent - |-------------------------------- // | - Internal Leading (in descent) // ------------------------------------------- FontHeight SimpleFontData::NormalizedTypoAscentAndDescent( FontBaseline baseline_type) const { … } LayoutUnit SimpleFontData::NormalizedTypoAscent( FontBaseline baseline_type) const { … } LayoutUnit SimpleFontData::NormalizedTypoDescent( FontBaseline baseline_type) const { … } static std::pair<int16_t, int16_t> TypoAscenderAndDescender( SkTypeface* typeface) { … } void SimpleFontData::ComputeNormalizedTypoAscentAndDescent() const { … } bool SimpleFontData::TrySetNormalizedTypoAscentAndDescent(float ascent, float descent) const { … } LayoutUnit SimpleFontData::VerticalPosition( FontVerticalPositionType position_type, FontBaseline baseline_type) const { … } const std::optional<float>& SimpleFontData::IdeographicAdvanceWidth() const { … } const std::optional<float>& SimpleFontData::IdeographicAdvanceHeight() const { … } const std::optional<float>& SimpleFontData::IdeographicInlineSize() const { … } const HanKerning::FontData& SimpleFontData::HanKerningData( const LayoutLocale& locale, bool is_horizontal) const { … } gfx::RectF SimpleFontData::PlatformBoundsForGlyph(Glyph glyph) const { … } void SimpleFontData::BoundsForGlyphs(const Vector<Glyph, 256>& glyphs, Vector<SkRect, 256>* bounds) const { … } float SimpleFontData::WidthForGlyph(Glyph glyph) const { … } } // namespace blink
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