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/*
* Copyright 2014 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkTypeface_win_dw_DEFINED
#define SkTypeface_win_dw_DEFINED
#include "include/core/SkFontArguments.h"
#include "include/core/SkTypeface.h"
#include "src/core/SkAdvancedTypefaceMetrics.h"
#include "src/core/SkLeanWindows.h"
#include "src/core/SkTypefaceCache.h"
#include "src/utils/win/SkDWrite.h"
#include "src/utils/win/SkHRESULT.h"
#include "src/utils/win/SkTScopedComPtr.h"
#include <dwrite.h>
#include <dwrite_1.h>
#include <dwrite_2.h>
#include <dwrite_3.h>
class SkFontDescriptor;
struct SkScalerContextRec;
static SkFontStyle get_style(IDWriteFont* font) {
int weight = font->GetWeight();
int width = font->GetStretch();
SkFontStyle::Slant slant = SkFontStyle::kUpright_Slant;
switch (font->GetStyle()) {
case DWRITE_FONT_STYLE_NORMAL: slant = SkFontStyle::kUpright_Slant; break;
case DWRITE_FONT_STYLE_OBLIQUE: slant = SkFontStyle::kOblique_Slant; break;
case DWRITE_FONT_STYLE_ITALIC: slant = SkFontStyle::kItalic_Slant; break;
default: SkASSERT(false); break;
}
return SkFontStyle(weight, width, slant);
}
class DWriteFontTypeface : public SkTypeface {
public:
struct Loaders : public SkNVRefCnt<Loaders> {
Loaders(IDWriteFactory* factory,
IDWriteFontFileLoader* fontFileLoader,
IDWriteFontCollectionLoader* fontCollectionLoader)
: fFactory(SkRefComPtr(factory))
, fDWriteFontFileLoader(SkRefComPtr(fontFileLoader))
, fDWriteFontCollectionLoader(SkRefComPtr(fontCollectionLoader))
{}
Loaders(const Loaders&) = delete;
Loaders& operator=(const Loaders&) = delete;
Loaders(Loaders&&) = delete;
Loaders& operator=(Loaders&&) = delete;
~Loaders();
SkTScopedComPtr<IDWriteFactory> fFactory;
SkTScopedComPtr<IDWriteFontFileLoader> fDWriteFontFileLoader;
SkTScopedComPtr<IDWriteFontCollectionLoader> fDWriteFontCollectionLoader;
};
private:
DWriteFontTypeface(const SkFontStyle& style,
IDWriteFactory* factory,
IDWriteFontFace* fontFace,
IDWriteFont* font,
IDWriteFontFamily* fontFamily,
sk_sp<Loaders> loaders,
const SkFontArguments::Palette&);
HRESULT initializePalette();
public:
SkTScopedComPtr<IDWriteFactory> fFactory;
SkTScopedComPtr<IDWriteFactory2> fFactory2;
SkTScopedComPtr<IDWriteFontFamily> fDWriteFontFamily;
SkTScopedComPtr<IDWriteFont> fDWriteFont;
SkTScopedComPtr<IDWriteFontFace> fDWriteFontFace;
SkTScopedComPtr<IDWriteFontFace1> fDWriteFontFace1;
SkTScopedComPtr<IDWriteFontFace2> fDWriteFontFace2;
SkTScopedComPtr<IDWriteFontFace4> fDWriteFontFace4;
bool fIsColorFont;
std::unique_ptr<SkFontArguments::Palette::Override> fRequestedPaletteEntryOverrides;
SkFontArguments::Palette fRequestedPalette;
size_t fPaletteEntryCount;
std::unique_ptr<SkColor[]> fPalette;
static sk_sp<DWriteFontTypeface> Make(
IDWriteFactory* factory,
IDWriteFontFace* fontFace,
IDWriteFont* font,
IDWriteFontFamily* fontFamily,
sk_sp<Loaders> loaders,
const SkFontArguments::Palette& palette)
{
return sk_sp<DWriteFontTypeface>(new DWriteFontTypeface(
get_style(font), factory, fontFace, font, fontFamily, std::move(loaders), palette));
}
protected:
void weak_dispose() const override {
fLoaders.reset();
//SkTypefaceCache::Remove(this);
INHERITED::weak_dispose();
}
sk_sp<SkTypeface> onMakeClone(const SkFontArguments&) const override;
std::unique_ptr<SkStreamAsset> onOpenStream(int* ttcIndex) const override;
std::unique_ptr<SkScalerContext> onCreateScalerContext(const SkScalerContextEffects&,
const SkDescriptor*) const override;
void onFilterRec(SkScalerContextRec*) const override;
void getGlyphToUnicodeMap(SkUnichar* glyphToUnicode) const override;
std::unique_ptr<SkAdvancedTypefaceMetrics> onGetAdvancedMetrics() const override;
void onGetFontDescriptor(SkFontDescriptor*, bool*) const override;
void onCharsToGlyphs(const SkUnichar* chars, int count, SkGlyphID glyphs[]) const override;
int onCountGlyphs() const override;
void getPostScriptGlyphNames(SkString*) const override;
int onGetUPEM() const override;
void onGetFamilyName(SkString* familyName) const override;
bool onGetPostScriptName(SkString*) const override;
SkTypeface::LocalizedStrings* onCreateFamilyNameIterator() const override;
bool onGlyphMaskNeedsCurrentColor() const override;
int onGetVariationDesignPosition(SkFontArguments::VariationPosition::Coordinate coordinates[],
int coordinateCount) const override;
int onGetVariationDesignParameters(SkFontParameters::Variation::Axis parameters[],
int parameterCount) const override;
int onGetTableTags(SkFontTableTag tags[]) const override;
size_t onGetTableData(SkFontTableTag, size_t offset, size_t length, void* data) const override;
sk_sp<SkData> onCopyTableData(SkFontTableTag) const override;
private:
mutable sk_sp<Loaders> fLoaders;
using INHERITED = SkTypeface;
};
#endif