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authorGravatar bsalomon <bsalomon@google.com>2015-02-23 09:06:38 -0800
committerGravatar Commit bot <commit-bot@chromium.org>2015-02-23 09:06:38 -0800
commit6bc1b5fab8554a9cb643277b4867965dd4535cd6 (patch)
tree3179261534d7db7a8264735b327daa59593e1dd0 /src/gpu/GrRenderTargetPriv.h
parent42380174ca509e78ab932fa8c6dae953e1eaaa5a (diff)
Dynamically create stencil buffer when needed.
Diffstat (limited to 'src/gpu/GrRenderTargetPriv.h')
-rw-r--r--src/gpu/GrRenderTargetPriv.h51
1 files changed, 51 insertions, 0 deletions
diff --git a/src/gpu/GrRenderTargetPriv.h b/src/gpu/GrRenderTargetPriv.h
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+++ b/src/gpu/GrRenderTargetPriv.h
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+/*
+ * Copyright 2015 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef GrRenderTargetPriv_DEFINED
+#define GrRenderTargetPriv_DEFINED
+
+#include "GrRenderTarget.h"
+
+/** Class that adds methods to GrRenderTarget that are only intended for use internal to Skia.
+ This class is purely a privileged window into GrRenderTarget. It should never have additional
+ data members or virtual methods. */
+class GrRenderTargetPriv {
+public:
+ /**
+ * GrStencilBuffer is not part of the public API.
+ */
+ GrStencilBuffer* getStencilBuffer() const { return fRenderTarget->fStencilBuffer; }
+
+ /**
+ * If this render target already has a stencil buffer, return it. Otherwise attempt to attach
+ * one.
+ */
+ GrStencilBuffer* attachStencilBuffer() const;
+
+ void didAttachStencilBuffer(GrStencilBuffer*);
+
+private:
+ explicit GrRenderTargetPriv(GrRenderTarget* renderTarget) : fRenderTarget(renderTarget) {}
+ GrRenderTargetPriv(const GrRenderTargetPriv&) {} // unimpl
+ GrRenderTargetPriv& operator=(const GrRenderTargetPriv&); // unimpl
+
+ // No taking addresses of this type.
+ const GrRenderTargetPriv* operator&() const;
+ GrRenderTargetPriv* operator&();
+
+ GrRenderTarget* fRenderTarget;
+
+ friend class GrRenderTarget; // to construct/copy this type.
+};
+
+inline GrRenderTargetPriv GrRenderTarget::renderTargetPriv() { return GrRenderTargetPriv(this); }
+
+inline const GrRenderTargetPriv GrRenderTarget::renderTargetPriv () const {
+ return GrRenderTargetPriv(const_cast<GrRenderTarget*>(this));
+}
+
+#endif