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authorMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
committerMatt A. Tobin <mattatobin@localhost.localdomain>2018-02-02 04:16:08 -0500
commit5f8de423f190bbb79a62f804151bc24824fa32d8 (patch)
tree10027f336435511475e392454359edea8e25895d /gfx/layers/basic/AutoMaskData.h
parent49ee0794b5d912db1f95dce6eb52d781dc210db5 (diff)
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Add m-esr52 at 52.6.0
Diffstat (limited to 'gfx/layers/basic/AutoMaskData.h')
-rw-r--r--gfx/layers/basic/AutoMaskData.h60
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diff --git a/gfx/layers/basic/AutoMaskData.h b/gfx/layers/basic/AutoMaskData.h
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+/* -*- Mode: C++; tab-width: 2; 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/. */
+
+#ifndef GFX_AUTOMASKDATA_H_
+#define GFX_AUTOMASKDATA_H_
+
+#include "mozilla/layers/LayersSurfaces.h" // for SurfaceDescriptor
+
+namespace mozilla {
+namespace layers {
+
+/**
+ * Drawing with a mask requires a mask surface and a transform.
+ *
+ * This helper class manages the SourceSurface logic.
+ */
+class MOZ_STACK_CLASS AutoMoz2DMaskData {
+public:
+ AutoMoz2DMaskData() { }
+ ~AutoMoz2DMaskData() { }
+
+ void Construct(const gfx::Matrix& aTransform,
+ gfx::SourceSurface* aSurface)
+ {
+ MOZ_ASSERT(!IsConstructed());
+ mTransform = aTransform;
+ mSurface = aSurface;
+ }
+
+ gfx::SourceSurface* GetSurface()
+ {
+ MOZ_ASSERT(IsConstructed());
+ return mSurface.get();
+ }
+
+ const gfx::Matrix& GetTransform()
+ {
+ MOZ_ASSERT(IsConstructed());
+ return mTransform;
+ }
+
+private:
+ bool IsConstructed()
+ {
+ return !!mSurface;
+ }
+
+ gfx::Matrix mTransform;
+ RefPtr<gfx::SourceSurface> mSurface;
+
+ AutoMoz2DMaskData(const AutoMoz2DMaskData&) = delete;
+ AutoMoz2DMaskData& operator=(const AutoMoz2DMaskData&) = delete;
+};
+
+} // namespace layers
+} // namespace mozilla
+
+#endif // GFX_AUTOMASKDATA_H_