1 files changed, 122 insertions, 0 deletions
diff --git a/gfx/thebes/gfxWindowsSurface.cpp b/gfx/thebes/gfxWindowsSurface.cpp
new file mode 100644
index 0000000000..419c9ee696
--- /dev/null
+++ b/gfx/thebes/gfxWindowsSurface.cpp
@@ -0,0 +1,122 @@
+/* -*- 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 "gfxWindowsSurface.h"
+#include "gfxContext.h"
+#include "gfxPlatform.h"
+#include "mozilla/gfx/2D.h"
+#include "mozilla/gfx/HelpersCairo.h"
+#include "mozilla/gfx/Logging.h"
+
+#include "cairo.h"
+#include "cairo-win32.h"
+
+#include "nsString.h"
+
+gfxWindowsSurface::gfxWindowsSurface(HDC dc, uint32_t flags)
+    : mOwnsDC(false), mDC(dc), mWnd(nullptr) {
+  InitWithDC(flags);
+}
+
+void gfxWindowsSurface::MakeInvalid(mozilla::gfx::IntSize& size) {
+  size = mozilla::gfx::IntSize(-1, -1);
+}
+
+gfxWindowsSurface::gfxWindowsSurface(const mozilla::gfx::IntSize& realSize,
+                                     gfxImageFormat imageFormat)
+    : mOwnsDC(false), mWnd(nullptr) {
+  mozilla::gfx::IntSize size(realSize);
+  if (!mozilla::gfx::Factory::CheckSurfaceSize(size)) MakeInvalid(size);
+
+  cairo_format_t cformat = GfxFormatToCairoFormat(imageFormat);
+  cairo_surface_t* surf =
+      cairo_win32_surface_create_with_dib(cformat, size.width, size.height);
+
+  Init(surf);
+
+  if (CairoStatus() == CAIRO_STATUS_SUCCESS) {
+    mDC = cairo_win32_surface_get_dc(CairoSurface());
+    RecordMemoryUsed(size.width * size.height * 4 + sizeof(gfxWindowsSurface));
+  } else {
+    mDC = nullptr;
+  }
+}
+
+gfxWindowsSurface::gfxWindowsSurface(cairo_surface_t* csurf)
+    : mOwnsDC(false), mWnd(nullptr) {
+  if (cairo_surface_status(csurf) == 0)
+    mDC = cairo_win32_surface_get_dc(csurf);
+  else
+    mDC = nullptr;
+
+  MOZ_ASSERT(cairo_surface_get_type(csurf) !=
+             CAIRO_SURFACE_TYPE_WIN32_PRINTING);
+
+  Init(csurf, true);
+}
+
+void gfxWindowsSurface::InitWithDC(uint32_t flags) {
+  if (flags & FLAG_IS_TRANSPARENT) {
+    Init(cairo_win32_surface_create_with_format(mDC, CAIRO_FORMAT_ARGB32));
+  } else {
+    Init(cairo_win32_surface_create(mDC));
+  }
+}
+
+gfxWindowsSurface::~gfxWindowsSurface() {
+  if (mOwnsDC) {
+    if (mWnd)
+      ::ReleaseDC(mWnd, mDC);
+    else
+      ::DeleteDC(mDC);
+  }
+}
+
+HDC gfxWindowsSurface::GetDC() {
+  return cairo_win32_surface_get_dc(CairoSurface());
+}
+
+already_AddRefed<gfxImageSurface> gfxWindowsSurface::GetAsImageSurface() {
+  if (!mSurfaceValid) {
+    NS_WARNING(
+        "GetImageSurface on an invalid (null) surface; who's calling this "
+        "without checking for surface errors?");
+    return nullptr;
+  }
+
+  NS_ASSERTION(
+      CairoSurface() != nullptr,
+      "CairoSurface() shouldn't be nullptr when mSurfaceValid is TRUE!");
+
+  cairo_surface_t* isurf = cairo_win32_surface_get_image(CairoSurface());
+  if (!isurf) return nullptr;
+
+  RefPtr<gfxImageSurface> result =
+      gfxASurface::Wrap(isurf).downcast<gfxImageSurface>();
+  result->SetOpaqueRect(GetOpaqueRect());
+
+  return result.forget();
+}
+
+const mozilla::gfx::IntSize gfxWindowsSurface::GetSize() const {
+  if (!mSurfaceValid) {
+    NS_WARNING(
+        "GetImageSurface on an invalid (null) surface; who's calling this "
+        "without checking for surface errors?");
+    return mozilla::gfx::IntSize(-1, -1);
+  }
+
+  NS_ASSERTION(
+      mSurface != nullptr,
+      "CairoSurface() shouldn't be nullptr when mSurfaceValid is TRUE!");
+
+  int width, height;
+  if (cairo_win32_surface_get_size(mSurface, &width, &height) !=
+      CAIRO_STATUS_SUCCESS) {
+    return mozilla::gfx::IntSize(-1, -1);
+  }
+
+  return mozilla::gfx::IntSize(width, height);
+}