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1fe62dee68
We create and destroy ScaledFonts for every piece of text we write. That causes a huge amount of duplicated data within the recording. This splits out the recording of the font data itself from the ScaledFont. The key generated to determine uniqueness could probably be fairly easily faked, but for our purposes that doesn't matter.
57 lines
1.8 KiB
C++
57 lines
1.8 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_gfx_NativeFontResourceGDI_h
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#define mozilla_gfx_NativeFontResourceGDI_h
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#include <windows.h>
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#include "2D.h"
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#include "mozilla/AlreadyAddRefed.h"
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#include "mozilla/Vector.h"
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#include "u16string.h"
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namespace mozilla {
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namespace gfx {
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class NativeFontResourceGDI final : public NativeFontResource
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{
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public:
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MOZ_DECLARE_REFCOUNTED_VIRTUAL_TYPENAME(NativeFontResourceGDI)
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/**
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* Creates a NativeFontResourceGDI if data is valid. Note aFontData will be
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* copied if required and so can be released after calling.
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*
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* @param aFontData the SFNT data.
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* @param aDataLength length of data.
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* @param aNeedsCairo whether the ScaledFont created need a cairo scaled font
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* @return Referenced NativeFontResourceGDI or nullptr if invalid.
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*/
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static already_AddRefed<NativeFontResourceGDI>
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Create(uint8_t *aFontData, uint32_t aDataLength, bool aNeedsCairo);
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~NativeFontResourceGDI();
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already_AddRefed<ScaledFont>
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CreateScaledFont(uint32_t aIndex, uint32_t aGlyphSize) final;
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private:
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NativeFontResourceGDI(HANDLE aFontResourceHandle,
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Vector<mozilla::u16string>&& aFontNames,
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bool aNeedsCairo)
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: mFontResourceHandle(aFontResourceHandle), mFontNames(Move(aFontNames))
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, mNeedsCairo(aNeedsCairo)
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{}
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HANDLE mFontResourceHandle;
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Vector<mozilla::u16string> mFontNames;
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bool mNeedsCairo;
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};
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} // gfx
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} // mozilla
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#endif // mozilla_gfx_NativeFontResourceGDI_h
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