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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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/. */
#include "NativeFontResourceGDI.h"
#include "Logging.h"
#include "mozilla/RefPtr.h"
#include "ScaledFontWin.h"
#include "UnscaledFontGDI.h"
namespace mozilla {
namespace gfx {
/* static */
already_AddRefed<NativeFontResourceGDI> NativeFontResourceGDI::Create(
const uint8_t* aFontData, uint32_t aDataLength) {
DWORD numberOfFontsAdded;
HANDLE fontResourceHandle = ::AddFontMemResourceEx(
(PVOID)aFontData, aDataLength, 0, &numberOfFontsAdded);
if (!fontResourceHandle) {
gfxWarning() << "Failed to add memory font resource.";
return nullptr;
}
RefPtr<NativeFontResourceGDI> fontResouce =
new NativeFontResourceGDI(fontResourceHandle, aDataLength);
return fontResouce.forget();
}
NativeFontResourceGDI::~NativeFontResourceGDI() {
::RemoveFontMemResourceEx(mFontResourceHandle);
}
already_AddRefed<UnscaledFont> NativeFontResourceGDI::CreateUnscaledFont(
uint32_t aIndex, const uint8_t* aInstanceData,
uint32_t aInstanceDataLength) {
if (aInstanceDataLength < sizeof(LOGFONT)) {
gfxWarning() << "GDI unscaled font instance data is truncated.";
return nullptr;
}
const LOGFONT* logFont = reinterpret_cast<const LOGFONT*>(aInstanceData);
RefPtr<UnscaledFont> unscaledFont = new UnscaledFontGDI(*logFont);
return unscaledFont.forget();
}
} // namespace gfx
} // namespace mozilla
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