Revert of Add Gr*Proxy classes

include/private/GrRenderTargetProxy.h

-/*
- * Copyright 2016 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef GrRenderTargetProxy_DEFINED
-#define GrRenderTargetProxy_DEFINED
-
-#include "GrRenderTarget.h"
-#include "GrSurfaceProxy.h"
-#include "GrTypes.h"
-
-class GrTextureProvider;
-
-// This class delays the acquisition of RenderTargets until they are actually
-// required
-// Beware: the uniqueID of the RenderTargetProxy will usually be different than
-// the uniqueID of the RenderTarget it represents!
-class GrRenderTargetProxy : public GrSurfaceProxy {
-public:
-    /**
-     * The caller gets the creation ref.
-     */
-    static sk_sp<GrRenderTargetProxy> Make(const GrCaps&, const GrSurfaceDesc&,
-                                           SkBackingFit, SkBudgeted);
-    static sk_sp<GrRenderTargetProxy> Make(sk_sp<GrRenderTarget> rt);
-
-    ~GrRenderTargetProxy() override;
-
-    // TODO: add asTextureProxy variants
-    GrRenderTargetProxy* asRenderTargetProxy() override { return this; }
-    const GrRenderTargetProxy* asRenderTargetProxy() const override { return this; }
-
-    // Actually instantiate the backing rendertarget, if necessary.
-    GrRenderTarget* instantiate(GrTextureProvider* texProvider);
-
-    /**
-     * @return true  if the surface is multisampled in all buffers,
-     *         false otherwise
-     */
-    bool isUnifiedMultisampled() const {
-        if (fSampleConfig != GrRenderTarget::kUnified_SampleConfig) {
-            return false;
-        }
-        return 0 != fDesc.fSampleCnt;
-    }
-
-    /**
-     * @return true if the surface is multisampled in the stencil buffer,
-     *         false otherwise
-     */
-    bool isStencilBufferMultisampled() const {
-        return 0 != fDesc.fSampleCnt;
-    }
-
-    /**
-     * @return the number of color samples-per-pixel, or zero if non-MSAA or
-     *         multisampled in the stencil buffer only.
-     */
-    int numColorSamples() const {
-        if (fSampleConfig == GrRenderTarget::kUnified_SampleConfig) {
-            return fDesc.fSampleCnt;
-        }
-        return 0;
-    }
-
-    /**
-     * @return the number of stencil samples-per-pixel, or zero if non-MSAA.
-     */
-    int numStencilSamples() const {
-        return fDesc.fSampleCnt;
-    }
-
-    /**
-     * @return true if the surface is mixed sampled, false otherwise.
-     */
-    bool hasMixedSamples() const {
-        SkASSERT(GrRenderTarget::kStencil_SampleConfig != fSampleConfig ||
-                 this->isStencilBufferMultisampled());
-        return GrRenderTarget::kStencil_SampleConfig == fSampleConfig;
-    }
-
-    void setLastDrawTarget(GrDrawTarget* dt);
-    GrDrawTarget* getLastDrawTarget() { return fLastDrawTarget; }
-
-private:
-    // TODO: we can probably munge the 'desc' in both the wrapped and deferred 
-    // cases to make the sampleConfig/numSamples stuff more rational.
-    GrRenderTargetProxy(const GrCaps& caps, const GrSurfaceDesc& desc,
-                        SkBackingFit fit, SkBudgeted budgeted)
-        : INHERITED(desc, fit, budgeted)
-        , fTarget(nullptr)
-        , fSampleConfig(GrRenderTarget::ComputeSampleConfig(caps, desc.fSampleCnt))
-        , fLastDrawTarget(nullptr) {
-    }
-
-    // Wrapped version
-    GrRenderTargetProxy(sk_sp<GrRenderTarget> rt);
-
-    // For wrapped render targets we store it here.
-    // For deferred proxies we will fill this in when we need to instantiate the deferred resource
-    sk_sp<GrRenderTarget>        fTarget;
-
-    // The sample config doesn't usually get computed until the render target is instantiated but
-    // the render target proxy may need to answer queries about it before then. For this reason
-    // we precompute it in the deferred case. In the wrapped case we just copy the wrapped
-    // rendertarget's info here.
-    GrRenderTarget::SampleConfig fSampleConfig;
-
-    // The last drawTarget that wrote to or is currently going to write to this renderTarget
-    // The drawTarget can be closed (e.g., no draw context is currently bound
-    // to this renderTarget).
-    // This back-pointer is required so that we can add a dependancy between
-    // the drawTarget used to create the current contents of this renderTarget
-    // and the drawTarget of a destination renderTarget to which this one is being drawn.
-    GrDrawTarget* fLastDrawTarget;
-
-    typedef GrSurfaceProxy INHERITED;
-};
-
-#endif