1 files changed, 82 insertions, 0 deletions
diff --git a/gfx/thebes/gfxQuartzSurface.cpp b/gfx/thebes/gfxQuartzSurface.cpp
new file mode 100644
index 0000000000..a11167db52
--- /dev/null
+++ b/gfx/thebes/gfxQuartzSurface.cpp
@@ -0,0 +1,82 @@
+/* -*- 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 "gfxQuartzSurface.h"
+#include "gfxContext.h"
+#include "gfxImageSurface.h"
+#include "mozilla/gfx/2D.h"
+#include "mozilla/gfx/HelpersCairo.h"
+
+#include "cairo-quartz.h"
+
+void gfxQuartzSurface::MakeInvalid() { mSize = mozilla::gfx::IntSize(-1, -1); }
+
+gfxQuartzSurface::gfxQuartzSurface(const mozilla::gfx::IntSize& desiredSize,
+                                   gfxImageFormat format)
+    : mCGContext(nullptr), mSize(desiredSize) {
+  if (!mozilla::gfx::Factory::CheckSurfaceSize(desiredSize)) MakeInvalid();
+
+  unsigned int width = static_cast<unsigned int>(mSize.width);
+  unsigned int height = static_cast<unsigned int>(mSize.height);
+
+  cairo_format_t cformat = GfxFormatToCairoFormat(format);
+  cairo_surface_t* surf = cairo_quartz_surface_create(cformat, width, height);
+
+  mCGContext = cairo_quartz_surface_get_cg_context(surf);
+
+  CGContextRetain(mCGContext);
+
+  Init(surf);
+  if (mSurfaceValid) {
+    RecordMemoryUsed(mSize.height * 4 + sizeof(gfxQuartzSurface));
+  }
+}
+
+gfxQuartzSurface::gfxQuartzSurface(CGContextRef context,
+                                   const mozilla::gfx::IntSize& size)
+    : mCGContext(context), mSize(size) {
+  if (!mozilla::gfx::Factory::CheckSurfaceSize(size)) MakeInvalid();
+
+  unsigned int width = static_cast<unsigned int>(mSize.width);
+  unsigned int height = static_cast<unsigned int>(mSize.height);
+
+  cairo_surface_t* surf =
+      cairo_quartz_surface_create_for_cg_context(context, width, height);
+
+  CGContextRetain(mCGContext);
+
+  Init(surf);
+  if (mSurfaceValid) {
+    RecordMemoryUsed(mSize.height * 4 + sizeof(gfxQuartzSurface));
+  }
+}
+
+gfxQuartzSurface::gfxQuartzSurface(cairo_surface_t* csurf,
+                                   const mozilla::gfx::IntSize& aSize)
+    : mSize(aSize) {
+  mCGContext = cairo_quartz_surface_get_cg_context(csurf);
+  CGContextRetain(mCGContext);
+
+  Init(csurf, true);
+}
+
+already_AddRefed<gfxImageSurface> gfxQuartzSurface::GetAsImageSurface() {
+  cairo_surface_t* surface = cairo_quartz_surface_get_image(mSurface);
+  if (!surface || cairo_surface_status(surface)) return nullptr;
+
+  RefPtr<gfxASurface> img = Wrap(surface);
+
+  // cairo_quartz_surface_get_image returns a referenced image, and thebes
+  // shares the refcounts of Cairo surfaces. However, Wrap also adds a
+  // reference to the image. We need to remove one of these references
+  // explicitly so we don't leak.
+  img.get()->Release();
+
+  img->SetOpaqueRect(GetOpaqueRect());
+
+  return img.forget().downcast<gfxImageSurface>();
+}
+
+gfxQuartzSurface::~gfxQuartzSurface() { CGContextRelease(mCGContext); }