/* -*- 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(
uint8_t* aFontData, uint32_t aDataLength) {
DWORD numberOfFontsAdded;
HANDLE fontResourceHandle =
::AddFontMemResourceEx(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