Adding upstream version 115.7.0esr.upstream/115.7.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 52 insertions, 0 deletions

diff --git a/gfx/2d/NativeFontResourceGDI.cpp b/gfx/2d/NativeFontResourceGDI.cpp
new file mode 100644
index 0000000000..f4a365da7a
--- /dev/null
+++ b/gfx/2d/NativeFontResourceGDI.cpp
@@ -0,0 +1,52 @@
+/* -*- 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