Add m-esr52 at 52.6.0

1 files changed, 103 insertions, 0 deletions

diff --git a/gfx/2d/ScaledFontWin.cpp b/gfx/2d/ScaledFontWin.cpp
new file mode 100644
index 000000000..2ebae21e5
--- /dev/null
+++ b/gfx/2d/ScaledFontWin.cpp
@@ -0,0 +1,103 @@
+/* -*- 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/. */
+
+#include "ScaledFontWin.h"
+
+#include "AutoHelpersWin.h"
+#include "Logging.h"
+#include "nsString.h"
+
+#ifdef USE_SKIA
+#include "skia/include/ports/SkTypeface_win.h"
+#endif
+
+#ifdef USE_CAIRO_SCALED_FONT
+#include "cairo-win32.h"
+#endif
+
+#include "HelpersWinFonts.h"
+
+namespace mozilla {
+namespace gfx {
+
+ScaledFontWin::ScaledFontWin(const LOGFONT* aFont, Float aSize)
+  : ScaledFontBase(aSize)
+  , mLogFont(*aFont)
+{
+}
+
+bool
+ScaledFontWin::GetFontFileData(FontFileDataOutput aDataCallback, void *aBaton)
+{
+  AutoDC dc;
+  AutoSelectFont font(dc.GetDC(), &mLogFont);
+
+  // Check for a font collection first.
+  uint32_t table = 0x66637474; // 'ttcf'
+  uint32_t tableSize = ::GetFontData(dc.GetDC(), table, 0, nullptr, 0);
+  if (tableSize == GDI_ERROR) {
+    // Try as if just a single font.
+    table = 0;
+    tableSize = ::GetFontData(dc.GetDC(), table, 0, nullptr, 0);
+    if (tableSize == GDI_ERROR) {
+      return false;
+    }
+  }
+
+  UniquePtr<uint8_t[]> fontData(new uint8_t[tableSize]);
+
+  uint32_t sizeGot =
+    ::GetFontData(dc.GetDC(), table, 0, fontData.get(), tableSize);
+  if (sizeGot != tableSize) {
+    return false;
+  }
+
+  aDataCallback(fontData.get(), tableSize, 0, mSize, aBaton);
+  return true;
+}
+
+bool
+ScaledFontWin::GetFontInstanceData(FontInstanceDataOutput aCb, void* aBaton)
+{
+  aCb(reinterpret_cast<uint8_t*>(&mLogFont), sizeof(mLogFont), aBaton);
+  return true;
+}
+
+bool
+ScaledFontWin::GetFontDescriptor(FontDescriptorOutput aCb, void* aBaton)
+{
+  aCb(reinterpret_cast<uint8_t*>(&mLogFont), sizeof(mLogFont), mSize, aBaton);
+  return true;
+}
+
+AntialiasMode
+ScaledFontWin::GetDefaultAAMode()
+{
+  return GetSystemDefaultAAMode();
+}
+
+#ifdef USE_SKIA
+SkTypeface* ScaledFontWin::GetSkTypeface()
+{
+  if (!mTypeface) {
+    mTypeface = SkCreateTypefaceFromLOGFONT(mLogFont);
+  }
+  return mTypeface;
+}
+#endif
+
+#ifdef USE_CAIRO_SCALED_FONT
+cairo_font_face_t*
+ScaledFontWin::GetCairoFontFace()
+{
+  if (mLogFont.lfFaceName[0] == 0) {
+    return nullptr;
+  }
+  return cairo_win32_font_face_create_for_logfontw(&mLogFont);
+}
+#endif
+
+}
+}