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diff --git a/WebCore/platform/graphics/freetype/FontPlatformDataFreeType.cpp b/WebCore/platform/graphics/freetype/FontPlatformDataFreeType.cpp
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+/*
+ * Copyright (C) 2006 Apple Computer, Inc.
+ * Copyright (C) 2006 Michael Emmel mike.emmel@gmail.com
+ * Copyright (C) 2007, 2008 Alp Toker <alp@atoker.com>
+ * Copyright (C) 2007 Holger Hans Peter Freyther
+ * Copyright (C) 2009, 2010 Igalia S.L.
+ * All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public License
+ * along with this library; see the file COPYING.LIB. If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include "config.h"
+#include "FontPlatformData.h"
+
+#include "PlatformString.h"
+#include "FontDescription.h"
+#include <cairo-ft.h>
+#include <cairo.h>
+#include <fontconfig/fcfreetype.h>
+
+#if !PLATFORM(EFL) || ENABLE(GLIB_SUPPORT)
+#include <gdk/gdk.h>
+#endif
+
+namespace WebCore {
+
+cairo_subpixel_order_t convertFontConfigSubpixelOrder(int fontConfigOrder)
+{
+ switch (fontConfigOrder) {
+ case FC_RGBA_RGB:
+ return CAIRO_SUBPIXEL_ORDER_RGB;
+ case FC_RGBA_BGR:
+ return CAIRO_SUBPIXEL_ORDER_BGR;
+ case FC_RGBA_VRGB:
+ return CAIRO_SUBPIXEL_ORDER_VRGB;
+ case FC_RGBA_VBGR:
+ return CAIRO_SUBPIXEL_ORDER_VBGR;
+ case FC_RGBA_NONE:
+ case FC_RGBA_UNKNOWN:
+ return CAIRO_SUBPIXEL_ORDER_DEFAULT;
+ }
+ return CAIRO_SUBPIXEL_ORDER_DEFAULT;
+}
+
+cairo_hint_style_t convertFontConfigHintStyle(int fontConfigStyle)
+{
+ switch (fontConfigStyle) {
+ case FC_HINT_NONE:
+ return CAIRO_HINT_STYLE_NONE;
+ case FC_HINT_SLIGHT:
+ return CAIRO_HINT_STYLE_SLIGHT;
+ case FC_HINT_MEDIUM:
+ return CAIRO_HINT_STYLE_MEDIUM;
+ case FC_HINT_FULL:
+ return CAIRO_HINT_STYLE_FULL;
+ }
+ return CAIRO_HINT_STYLE_NONE;
+}
+
+void setCairoFontOptionsFromFontConfigPattern(cairo_font_options_t* options, FcPattern* pattern)
+{
+ FcBool booleanResult;
+ int integerResult;
+
+ if (FcPatternGetInteger(pattern, FC_RGBA, 0, &integerResult) == FcResultMatch) {
+ cairo_font_options_set_subpixel_order(options, convertFontConfigSubpixelOrder(integerResult));
+
+ // Based on the logic in cairo-ft-font.c in the cairo source, a font with
+ // a subpixel order implies that is uses subpixel antialiasing.
+ if (integerResult != FC_RGBA_NONE)
+ cairo_font_options_set_antialias(options, CAIRO_ANTIALIAS_SUBPIXEL);
+ }
+
+ if (FcPatternGetBool(pattern, FC_ANTIALIAS, 0, &booleanResult) == FcResultMatch) {
+ // Only override the anti-aliasing setting if was previously turned off. Otherwise
+ // we'll override the preference which decides between gray anti-aliasing and
+ // subpixel anti-aliasing.
+ if (!booleanResult)
+ cairo_font_options_set_antialias(options, CAIRO_ANTIALIAS_NONE);
+ else if (cairo_font_options_get_antialias(options) == CAIRO_ANTIALIAS_NONE)
+ cairo_font_options_set_antialias(options, CAIRO_ANTIALIAS_GRAY);
+ }
+
+ if (FcPatternGetInteger(pattern, FC_HINT_STYLE, 0, &integerResult) == FcResultMatch)
+ cairo_font_options_set_hint_style(options, convertFontConfigHintStyle(integerResult));
+ if (FcPatternGetBool(pattern, FC_HINTING, 0, &booleanResult) == FcResultMatch && !booleanResult)
+ cairo_font_options_set_hint_style(options, CAIRO_HINT_STYLE_NONE);
+}
+
+static const cairo_font_options_t* getDefaultFontOptions()
+{
+ static const cairo_font_options_t* options = cairo_font_options_create();
+#if PLATFORM(GTK) || ENABLE(GLIB_SUPPORT)
+ if (GdkScreen* screen = gdk_screen_get_default()) {
+ const cairo_font_options_t* screenOptions = gdk_screen_get_font_options(screen);
+ if (screenOptions)
+ options = screenOptions;
+ }
+#endif
+ return options;
+}
+
+FontPlatformData::FontPlatformData(FcPattern* pattern, const FontDescription& fontDescription)
+ : m_pattern(pattern)
+ , m_fallbacks(0)
+ , m_size(fontDescription.computedPixelSize())
+ , m_syntheticBold(false)
+ , m_syntheticOblique(false)
+ , m_fixedWidth(false)
+ , m_scaledFont(0)
+{
+ RefPtr<cairo_font_face_t> fontFace = adoptRef(cairo_ft_font_face_create_for_pattern(m_pattern.get()));
+ initializeWithFontFace(fontFace.get());
+
+ int spacing;
+ if (FcPatternGetInteger(pattern, FC_SPACING, 0, &spacing) == FcResultMatch && spacing == FC_MONO)
+ m_fixedWidth = true;
+
+ if (fontDescription.weight() >= FontWeightBold) {
+ // The FC_EMBOLDEN property instructs us to fake the boldness of the font.
+ FcBool fontConfigEmbolden;
+ if (FcPatternGetBool(pattern, FC_EMBOLDEN, 0, &fontConfigEmbolden) == FcResultMatch)
+ m_syntheticBold = fontConfigEmbolden;
+ }
+}
+
+FontPlatformData::FontPlatformData(float size, bool bold, bool italic)
+ : m_fallbacks(0)
+ , m_size(size)
+ , m_syntheticBold(bold)
+ , m_syntheticOblique(italic)
+ , m_fixedWidth(false)
+ , m_scaledFont(0)
+{
+ // We cannot create a scaled font here.
+}
+
+FontPlatformData::FontPlatformData(cairo_font_face_t* fontFace, float size, bool bold, bool italic)
+ : m_fallbacks(0)
+ , m_size(size)
+ , m_syntheticBold(bold)
+ , m_syntheticOblique(italic)
+ , m_scaledFont(0)
+{
+ initializeWithFontFace(fontFace);
+
+ FT_Face fontConfigFace = cairo_ft_scaled_font_lock_face(m_scaledFont);
+ if (fontConfigFace) {
+ m_fixedWidth = fontConfigFace->face_flags & FT_FACE_FLAG_FIXED_WIDTH;
+ cairo_ft_scaled_font_unlock_face(m_scaledFont);
+ }
+}
+
+FontPlatformData& FontPlatformData::operator=(const FontPlatformData& other)
+{
+ // Check for self-assignment.
+ if (this == &other)
+ return *this;
+
+ m_size = other.m_size;
+ m_syntheticBold = other.m_syntheticBold;
+ m_syntheticOblique = other.m_syntheticOblique;
+ m_fixedWidth = other.m_fixedWidth;
+ m_pattern = other.m_pattern;
+
+ if (m_fallbacks) {
+ FcFontSetDestroy(m_fallbacks);
+ // This will be re-created on demand.
+ m_fallbacks = 0;
+ }
+
+ if (m_scaledFont && m_scaledFont != hashTableDeletedFontValue())
+ cairo_scaled_font_destroy(m_scaledFont);
+ m_scaledFont = cairo_scaled_font_reference(other.m_scaledFont);
+
+ return *this;
+}
+
+FontPlatformData::FontPlatformData(const FontPlatformData& other)
+ : m_fallbacks(0)
+ , m_scaledFont(0)
+{
+ *this = other;
+}
+
+FontPlatformData::FontPlatformData(const FontPlatformData& other, float size)
+{
+ *this = other;
+
+ // We need to reinitialize the instance, because the difference in size
+ // necessitates a new scaled font instance.
+ m_size = size;
+ initializeWithFontFace(cairo_scaled_font_get_font_face(m_scaledFont));
+}
+
+FontPlatformData::~FontPlatformData()
+{
+ if (m_fallbacks) {
+ FcFontSetDestroy(m_fallbacks);
+ m_fallbacks = 0;
+ }
+
+ if (m_scaledFont && m_scaledFont != hashTableDeletedFontValue())
+ cairo_scaled_font_destroy(m_scaledFont);
+}
+
+bool FontPlatformData::isFixedPitch()
+{
+ return m_fixedWidth;
+}
+
+bool FontPlatformData::operator==(const FontPlatformData& other) const
+{
+ if (m_pattern == other.m_pattern)
+ return true;
+ if (!m_pattern || !other.m_pattern)
+ return false;
+ return FcPatternEqual(m_pattern.get(), other.m_pattern.get());
+}
+
+#ifndef NDEBUG
+String FontPlatformData::description() const
+{
+ return String();
+}
+#endif
+
+void FontPlatformData::initializeWithFontFace(cairo_font_face_t* fontFace)
+{
+ cairo_font_options_t* options = cairo_font_options_copy(getDefaultFontOptions());
+
+ cairo_matrix_t ctm;
+ cairo_matrix_init_identity(&ctm);
+
+ cairo_matrix_t fontMatrix;
+ if (!m_pattern)
+ cairo_matrix_init_scale(&fontMatrix, m_size, m_size);
+ else {
+ setCairoFontOptionsFromFontConfigPattern(options, m_pattern.get());
+
+ // FontConfig may return a list of transformation matrices with the pattern, for instance,
+ // for fonts that are oblique. We use that to initialize the cairo font matrix.
+ FcMatrix fontConfigMatrix, *tempFontConfigMatrix;
+ FcMatrixInit(&fontConfigMatrix);
+
+ // These matrices may be stacked in the pattern, so it's our job to get them all and multiply them.
+ for (int i = 0; FcPatternGetMatrix(m_pattern.get(), FC_MATRIX, i, &tempFontConfigMatrix) == FcResultMatch; i++)
+ FcMatrixMultiply(&fontConfigMatrix, &fontConfigMatrix, tempFontConfigMatrix);
+ cairo_matrix_init(&fontMatrix, fontConfigMatrix.xx, -fontConfigMatrix.yx,
+ -fontConfigMatrix.xy, fontConfigMatrix.yy, 0, 0);
+
+ // The matrix from FontConfig does not include the scale.
+ cairo_matrix_scale(&fontMatrix, m_size, m_size);
+ }
+
+ m_scaledFont = cairo_scaled_font_create(fontFace, &fontMatrix, &ctm, options);
+ cairo_font_options_destroy(options);
+}
+
+
+}