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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef GFX_DWRITECOMMON_H
#define GFX_DWRITECOMMON_H
// Mozilla includes
#include "mozilla/MemoryReporting.h"
#include "mozilla/FontPropertyTypes.h"
#include "nscore.h"
#include "nsCOMPtr.h"
#include "cairo-features.h"
#include "gfxFontConstants.h"
#include "nsTArray.h"
#include "gfxWindowsPlatform.h"
#include <windows.h>
#include <dwrite.h>
static inline DWRITE_FONT_STRETCH DWriteFontStretchFromStretch(
mozilla::FontStretch aStretch) {
if (aStretch == mozilla::FontStretch::UltraCondensed()) {
return DWRITE_FONT_STRETCH_ULTRA_CONDENSED;
}
if (aStretch == mozilla::FontStretch::ExtraCondensed()) {
return DWRITE_FONT_STRETCH_EXTRA_CONDENSED;
}
if (aStretch == mozilla::FontStretch::Condensed()) {
return DWRITE_FONT_STRETCH_CONDENSED;
}
if (aStretch == mozilla::FontStretch::SemiCondensed()) {
return DWRITE_FONT_STRETCH_SEMI_CONDENSED;
}
if (aStretch == mozilla::FontStretch::Normal()) {
return DWRITE_FONT_STRETCH_NORMAL;
}
if (aStretch == mozilla::FontStretch::SemiExpanded()) {
return DWRITE_FONT_STRETCH_SEMI_EXPANDED;
}
if (aStretch == mozilla::FontStretch::Expanded()) {
return DWRITE_FONT_STRETCH_EXPANDED;
}
if (aStretch == mozilla::FontStretch::ExtraExpanded()) {
return DWRITE_FONT_STRETCH_EXTRA_EXPANDED;
}
if (aStretch == mozilla::FontStretch::UltraExpanded()) {
return DWRITE_FONT_STRETCH_ULTRA_EXPANDED;
}
return DWRITE_FONT_STRETCH_UNDEFINED;
}
static inline mozilla::FontStretch FontStretchFromDWriteStretch(
DWRITE_FONT_STRETCH aStretch) {
switch (aStretch) {
case DWRITE_FONT_STRETCH_ULTRA_CONDENSED:
return mozilla::FontStretch::UltraCondensed();
case DWRITE_FONT_STRETCH_EXTRA_CONDENSED:
return mozilla::FontStretch::ExtraCondensed();
case DWRITE_FONT_STRETCH_CONDENSED:
return mozilla::FontStretch::Condensed();
case DWRITE_FONT_STRETCH_SEMI_CONDENSED:
return mozilla::FontStretch::SemiCondensed();
case DWRITE_FONT_STRETCH_NORMAL:
return mozilla::FontStretch::Normal();
case DWRITE_FONT_STRETCH_SEMI_EXPANDED:
return mozilla::FontStretch::SemiExpanded();
case DWRITE_FONT_STRETCH_EXPANDED:
return mozilla::FontStretch::Expanded();
case DWRITE_FONT_STRETCH_EXTRA_EXPANDED:
return mozilla::FontStretch::ExtraExpanded();
case DWRITE_FONT_STRETCH_ULTRA_EXPANDED:
return mozilla::FontStretch::UltraExpanded();
default:
return mozilla::FontStretch::Normal();
}
}
class gfxDWriteFontFileLoader : public IDWriteFontFileLoader {
public:
gfxDWriteFontFileLoader() {}
// IUnknown interface
IFACEMETHOD(QueryInterface)(IID const& iid, OUT void** ppObject) {
if (iid == __uuidof(IDWriteFontFileLoader)) {
*ppObject = static_cast<IDWriteFontFileLoader*>(this);
return S_OK;
} else if (iid == __uuidof(IUnknown)) {
*ppObject = static_cast<IUnknown*>(this);
return S_OK;
} else {
return E_NOINTERFACE;
}
}
IFACEMETHOD_(ULONG, AddRef)() { return 1; }
IFACEMETHOD_(ULONG, Release)() { return 1; }
// IDWriteFontFileLoader methods
/**
* Important! Note the key here -has- to be a pointer to a uint64_t.
*/
virtual HRESULT STDMETHODCALLTYPE CreateStreamFromKey(
void const* fontFileReferenceKey, UINT32 fontFileReferenceKeySize,
OUT IDWriteFontFileStream** fontFileStream);
/**
* Gets the singleton loader instance. Note that when using this font
* loader, the key must be a pointer to a unint64_t.
*/
static IDWriteFontFileLoader* Instance() {
if (!mInstance) {
mInstance = new gfxDWriteFontFileLoader();
mozilla::gfx::Factory::GetDWriteFactory()->RegisterFontFileLoader(
mInstance);
}
return mInstance;
}
/**
* Creates a IDWriteFontFile and IDWriteFontFileStream from aFontData.
* The data from aFontData will be copied internally, so the caller
* is free to dispose of it once this method returns.
*
* @param aFontData the font data for the custom font file
* @param aLength length of the font data
* @param aFontFile out param for the created font file
* @param aFontFileStream out param for the corresponding stream
* @return HRESULT of internal calls
*/
static HRESULT CreateCustomFontFile(const uint8_t* aFontData,
uint32_t aLength,
IDWriteFontFile** aFontFile,
IDWriteFontFileStream** aFontFileStream);
size_t SizeOfIncludingThis(mozilla::MallocSizeOf mallocSizeOf) const;
private:
static IDWriteFontFileLoader* mInstance;
};
#endif /* GFX_DWRITECOMMON_H */