Convert DstTexture to DstProxy

The last GrTexture-based TextureSampler::reset call must be removed before the TextureSamplers can become purely GrTextureProxy-backed

Split out of: https://skia-review.googlesource.com/c/10484/ (Omnibus: Push instantiation of GrTextures later (post TextureSampler))

Change-Id: Ic1435177d8b5d9bd3fc38b4903c9baae8205cfb0
Reviewed-on: https://skia-review.googlesource.com/16908
Reviewed-by: Greg Daniel <egdaniel@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>

19 files changed, 117 insertions, 114 deletions

diff --git a/src/gpu/GrOpFlushState.h b/src/gpu/GrOpFlushState.h
index 0fc7b7f834..438a7bdf5a 100644
--- a/src/gpu/GrOpFlushState.h
+++ b/src/gpu/GrOpFlushState.h
@@ -102,7 +102,7 @@ public:
     struct DrawOpArgs {
         GrRenderTarget* fRenderTarget;
         const GrAppliedClip* fAppliedClip;
-        GrXferProcessor::DstTexture fDstTexture;
+        GrXferProcessor::DstProxy fDstProxy;
     };
 
     void setDrawOpArgs(DrawOpArgs* opArgs) { fOpArgs = opArgs; }
@@ -224,8 +224,8 @@ public:
 
     const GrAppliedClip* clip() const { return this->state()->drawOpArgs().fAppliedClip; }
 
-    const GrXferProcessor::DstTexture& dstTexture() const {
-        return this->state()->drawOpArgs().fDstTexture;
+    const GrXferProcessor::DstProxy& dstProxy() const {
+        return this->state()->drawOpArgs().fDstProxy;
     }
 
     template <typename... Args>
diff --git a/src/gpu/GrPipeline.cpp b/src/gpu/GrPipeline.cpp
index 7c0338c77c..73ae9c659a 100644
--- a/src/gpu/GrPipeline.cpp
+++ b/src/gpu/GrPipeline.cpp
@@ -44,9 +44,13 @@ void GrPipeline::init(const InitArgs& args) {
 
     fXferProcessor = args.fProcessors->refXferProcessor();
 
-    if (args.fDstTexture.texture()) {
-        fDstTexture.reset(args.fDstTexture.texture());
-        fDstTextureOffset = args.fDstTexture.offset();
+    if (args.fDstProxy.proxy()) {
+        if (!args.fDstProxy.proxy()->instantiate(args.fResourceProvider)) {
+            this->markAsBad();
+        }
+
+        fDstTextureProxy.reset(args.fDstProxy.proxy());
+        fDstTextureOffset = args.fDstProxy.offset();
     }
 
     // Copy GrFragmentProcessors from GrPipelineBuilder to Pipeline, possibly removing some of the
@@ -91,7 +95,7 @@ static void add_dependencies_for_processor(const GrFragmentProcessor* proc,
     GrFragmentProcessor::TextureAccessIter iter(proc);
     while (const GrResourceIOProcessor::TextureSampler* sampler = iter.next()) {
         SkASSERT(rtp->getLastOpList());
-        rtp->getLastOpList()->addDependency(sampler->texture());
+        rtp->getLastOpList()->addDependency(sampler->proxy());
     }
 }
 #endif
@@ -104,8 +108,8 @@ void GrPipeline::addDependenciesTo(GrRenderTargetProxy* rtp) const {
     }
 #endif
 
-    if (fDstTexture) {
-        //SkASSERT(rtp->getLastOpList());
+    if (fDstTextureProxy) {
+        SkASSERT(rtp->getLastOpList());
         // MDB TODO: re-enable when TextureSamplers store texture proxies
         //rtp->getLastOpList()->addDependency(fDstTexture.get());
     }
diff --git a/src/gpu/GrPipeline.h b/src/gpu/GrPipeline.h
index 67e137c82a..fa78f34629 100644
--- a/src/gpu/GrPipeline.h
+++ b/src/gpu/GrPipeline.h
@@ -75,7 +75,8 @@ public:
         const GrAppliedClip* fAppliedClip = nullptr;
         GrRenderTarget* fRenderTarget = nullptr;
         const GrCaps* fCaps = nullptr;
-        GrXferProcessor::DstTexture fDstTexture;
+        GrResourceProvider* fResourceProvider = nullptr;
+        GrXferProcessor::DstProxy fDstProxy;
     };
 
     /**
@@ -157,11 +158,11 @@ public:
      * If the GrXferProcessor uses a texture to access the dst color, then this returns that
      * texture and the offset to the dst contents within that texture.
      */
-    GrTexture* dstTexture(SkIPoint* offset = nullptr) const {
+    GrTextureProxy* dstTextureProxy(SkIPoint* offset = nullptr) const {
         if (offset) {
             *offset = fDstTextureOffset;
         }
-        return fDstTexture.get();
+        return fDstTextureProxy.get();
     }
 
     const GrFragmentProcessor& getColorFragmentProcessor(int idx) const {
@@ -215,7 +216,8 @@ public:
     bool isBad() const { return SkToBool(fFlags & kIsBad_Flag); }
 
     GrXferBarrierType xferBarrierType(const GrCaps& caps) const {
-        if (fDstTexture.get() && fDstTexture.get() == fRenderTarget.get()->asTexture()) {
+        if (fDstTextureProxy.get() &&
+            fDstTextureProxy.get()->priv().peekTexture() == fRenderTarget.get()->asTexture()) {
             return kTexture_GrXferBarrierType;
         }
         return this->getXferProcessor().xferBarrierType(caps);
@@ -233,11 +235,11 @@ private:
     };
 
     using RenderTarget = GrPendingIOResource<GrRenderTarget, kWrite_GrIOType>;
-    using DstTexture = GrPendingIOResource<GrTexture, kRead_GrIOType>;
+    using DstTextureProxy = GrPendingIOResource<GrTextureProxy, kRead_GrIOType>;
     using PendingFragmentProcessor = GrPendingProgramElement<const GrFragmentProcessor>;
     using FragmentProcessorArray = SkAutoSTArray<8, PendingFragmentProcessor>;
 
-    DstTexture fDstTexture;
+    DstTextureProxy fDstTextureProxy;
     SkIPoint fDstTextureOffset;
     RenderTarget fRenderTarget;
     GrScissorState fScissorState;
diff --git a/src/gpu/GrProcessor.cpp b/src/gpu/GrProcessor.cpp
index 1533257bad..4789e3ec4a 100644
--- a/src/gpu/GrProcessor.cpp
+++ b/src/gpu/GrProcessor.cpp
@@ -230,18 +230,6 @@ GrResourceIOProcessor::TextureSampler::TextureSampler(GrResourceProvider* resour
     this->reset(resourceProvider, std::move(proxy), filterMode, tileXAndY, visibility);
 }
 
-// MDB TODO: remove this!
-void GrResourceIOProcessor::TextureSampler::reset(GrTexture* texture,
-                                                  GrSamplerParams::FilterMode filterMode,
-                                                  SkShader::TileMode tileXAndY,
-                                                  GrShaderFlags visibility) {
-    SkASSERT(texture);
-    fTexture.set(SkRef(texture), kRead_GrIOType);
-    filterMode = SkTMin(filterMode, texture->texturePriv().highestFilterMode());
-    fParams.reset(tileXAndY, filterMode);
-    fVisibility = visibility;
-}
-
 void GrResourceIOProcessor::TextureSampler::reset(GrResourceProvider* resourceProvider,
                                                   sk_sp<GrTextureProxy> proxy,
                                                   const GrSamplerParams& params,
diff --git a/src/gpu/GrProcessor.h b/src/gpu/GrProcessor.h
index 027a34e334..c1669ef753 100644
--- a/src/gpu/GrProcessor.h
+++ b/src/gpu/GrProcessor.h
@@ -222,12 +222,6 @@ public:
      */
     TextureSampler();
 
-    // MDB TODO: this is the last GrTexture-based reset call!
-    void reset(GrTexture*,
-               GrSamplerParams::FilterMode = GrSamplerParams::kNone_FilterMode,
-               SkShader::TileMode tileXAndY = SkShader::kClamp_TileMode,
-               GrShaderFlags visibility = kFragment_GrShaderFlag);
-
     // MDB TODO: ultimately we shouldn't need the resource provider parameter
     TextureSampler(GrResourceProvider*, sk_sp<GrTextureProxy>, const GrSamplerParams&);
     explicit TextureSampler(GrResourceProvider*, sk_sp<GrTextureProxy>,
diff --git a/src/gpu/GrProgramDesc.cpp b/src/gpu/GrProgramDesc.cpp
index 41993e190d..8362e110c6 100644
--- a/src/gpu/GrProgramDesc.cpp
+++ b/src/gpu/GrProgramDesc.cpp
@@ -198,8 +198,8 @@ bool GrProgramDesc::Build(GrProgramDesc* desc,
     const GrXferProcessor& xp = pipeline.getXferProcessor();
     const GrSurfaceOrigin* originIfDstTexture = nullptr;
     GrSurfaceOrigin origin;
-    if (pipeline.dstTexture()) {
-        origin = pipeline.dstTexture()->origin();
+    if (pipeline.dstTextureProxy()) {
+        origin = pipeline.dstTextureProxy()->origin();
         originIfDstTexture = &origin;
     }
     xp.getGLSLProcessorKey(shaderCaps, &b, originIfDstTexture);
diff --git a/src/gpu/GrRenderTargetContext.cpp b/src/gpu/GrRenderTargetContext.cpp
index 0076812845..1c92d37316 100644
--- a/src/gpu/GrRenderTargetContext.cpp
+++ b/src/gpu/GrRenderTargetContext.cpp
@@ -1598,15 +1598,15 @@ uint32_t GrRenderTargetContext::addDrawOp(const GrClip& clip, std::unique_ptr<Gr
         }
     }
 
-    GrXferProcessor::DstTexture dstTexture;
+    GrXferProcessor::DstProxy dstProxy;
     if (op->xpRequiresDstTexture(*this->caps(), &appliedClip)) {
-        if (!this->setupDstTexture(fRenderTargetProxy.get(), clip, op->bounds(), &dstTexture)) {
+        if (!this->setupDstProxy(this->asRenderTargetProxy(), clip, op->bounds(), &dstProxy)) {
             return SK_InvalidUniqueID;
         }
     }
 
     op->setClippedBounds(bounds);
-    return this->getOpList()->addOp(std::move(op), this, std::move(appliedClip), dstTexture);
+    return this->getOpList()->addOp(std::move(op), this, std::move(appliedClip), dstProxy);
 }
 
 uint32_t GrRenderTargetContext::addLegacyMeshDrawOp(GrPipelineBuilder&& pipelineBuilder,
@@ -1656,9 +1656,10 @@ uint32_t GrRenderTargetContext::addLegacyMeshDrawOp(GrPipelineBuilder&& pipeline
     args.fAppliedClip = &appliedClip;
     args.fRenderTarget = rt;
     args.fCaps = this->caps();
+    args.fResourceProvider = fContext->resourceProvider();
 
     if (analysis.requiresDstTexture()) {
-        if (!this->setupDstTexture(fRenderTargetProxy.get(), clip, bounds, &args.fDstTexture)) {
+        if (!this->setupDstProxy(this->asRenderTargetProxy(), clip, bounds, &args.fDstProxy)) {
             return SK_InvalidUniqueID;
         }
     }
@@ -1671,22 +1672,15 @@ uint32_t GrRenderTargetContext::addLegacyMeshDrawOp(GrPipelineBuilder&& pipeline
     return this->getOpList()->addOp(std::move(op), this);
 }
 
-bool GrRenderTargetContext::setupDstTexture(GrRenderTargetProxy* rtProxy, const GrClip& clip,
+bool GrRenderTargetContext::setupDstProxy(GrRenderTargetProxy* rtProxy, const GrClip& clip,
                                             const SkRect& opBounds,
-                                            GrXferProcessor::DstTexture* dstTexture) {
+                                            GrXferProcessor::DstProxy* dstProxy) {
     if (this->caps()->textureBarrierSupport()) {
         if (GrTextureProxy* texProxy = rtProxy->asTextureProxy()) {
-            // MDB TODO: remove this instantiation. Blocked on making DstTexture be proxy-based
-            sk_sp<GrTexture> tex(sk_ref_sp(texProxy->instantiate(fContext->resourceProvider())));
-            if (!tex) {
-                SkDebugf("setupDstTexture: instantiation of src texture failed.\n");
-                return false;  // We have bigger problems now
-            }
-
             // The render target is a texture, so we can read from it directly in the shader. The XP
             // will be responsible to detect this situation and request a texture barrier.
-            dstTexture->setTexture(std::move(tex));
-            dstTexture->setOffset(0, 0);
+            dstProxy->setProxy(sk_ref_sp(texProxy));
+            dstProxy->setOffset(0, 0);
             return true;
         }
     }
@@ -1752,15 +1746,7 @@ bool GrRenderTargetContext::setupDstTexture(GrRenderTargetProxy* rtProxy, const
         return false;
     }
 
-    GrTextureProxy* copyProxy = sContext->asTextureProxy();
-    // MDB TODO: remove this instantiation once DstTexture is proxy-backed
-    sk_sp<GrTexture> copy(sk_ref_sp(copyProxy->instantiate(fContext->resourceProvider())));
-    if (!copy) {
-        SkDebugf("setupDstTexture: instantiation of copied texture failed.\n");
-        return false;
-    }
-
-    dstTexture->setTexture(std::move(copy));
-    dstTexture->setOffset(dstOffset);
+    dstProxy->setProxy(sContext->asTextureProxyRef());
+    dstProxy->setOffset(dstOffset);
     return true;
 }
diff --git a/src/gpu/GrRenderTargetContext.h b/src/gpu/GrRenderTargetContext.h
index a749046d24..2666d5c370 100644
--- a/src/gpu/GrRenderTargetContext.h
+++ b/src/gpu/GrRenderTargetContext.h
@@ -458,10 +458,10 @@ private:
     // Makes a copy of the proxy if it is necessary for the draw and places the texture that should
     // be used by GrXferProcessor to access the destination color in 'result'. If the return
     // value is false then a texture copy could not be made.
-    bool SK_WARN_UNUSED_RESULT setupDstTexture(GrRenderTargetProxy*,
-                                               const GrClip&,
-                                               const SkRect& opBounds,
-                                               GrXferProcessor::DstTexture* result);
+    bool SK_WARN_UNUSED_RESULT setupDstProxy(GrRenderTargetProxy*,
+                                             const GrClip&,
+                                             const SkRect& opBounds,
+                                             GrXferProcessor::DstProxy* result);
 
     GrRenderTargetOpList* getOpList();
 
diff --git a/src/gpu/GrRenderTargetOpList.cpp b/src/gpu/GrRenderTargetOpList.cpp
index fe87bdeef0..acd79b864e 100644
--- a/src/gpu/GrRenderTargetOpList.cpp
+++ b/src/gpu/GrRenderTargetOpList.cpp
@@ -88,7 +88,7 @@ void GrRenderTargetOpList::prepareOps(GrOpFlushState* flushState) {
                 opArgs = {
                     fRecordedOps[i].fRenderTarget.get(),
                     fRecordedOps[i].fAppliedClip,
-                    fRecordedOps[i].fDstTexture
+                    fRecordedOps[i].fDstProxy
                 };
             }
             flushState->setDrawOpArgs(&opArgs);
@@ -167,7 +167,7 @@ bool GrRenderTargetOpList::executeOps(GrOpFlushState* flushState) {
         GrOpFlushState::DrawOpArgs opArgs {
             fRecordedOps[i].fRenderTarget.get(),
             fRecordedOps[i].fAppliedClip,
-            fRecordedOps[i].fDstTexture
+            fRecordedOps[i].fDstProxy
         };
 
         flushState->setDrawOpArgs(&opArgs);
@@ -273,7 +273,7 @@ static inline bool can_reorder(const SkRect& a, const SkRect& b) { return !GrRec
 
 bool GrRenderTargetOpList::combineIfPossible(const RecordedOp& a, GrOp* b,
                                              const GrAppliedClip* bClip,
-                                             const DstTexture* bDstTexture,
+                                             const DstProxy* bDstProxy,
                                              const GrCaps& caps) {
     if (a.fAppliedClip) {
         if (!bClip) {
@@ -285,11 +285,11 @@ bool GrRenderTargetOpList::combineIfPossible(const RecordedOp& a, GrOp* b,
     } else if (bClip) {
         return false;
     }
-    if (bDstTexture) {
-        if (a.fDstTexture != *bDstTexture) {
+    if (bDstProxy) {
+        if (a.fDstProxy != *bDstProxy) {
             return false;
         }
-    } else if (a.fDstTexture.texture()) {
+    } else if (a.fDstProxy.proxy()) {
         return false;
     }
     return a.fOp->combineIfPossible(b, caps);
@@ -298,7 +298,7 @@ bool GrRenderTargetOpList::combineIfPossible(const RecordedOp& a, GrOp* b,
 GrOp* GrRenderTargetOpList::recordOp(std::unique_ptr<GrOp> op,
                                      GrRenderTargetContext* renderTargetContext,
                                      GrAppliedClip* clip,
-                                     const DstTexture* dstTexture) {
+                                     const DstProxy* dstProxy) {
     GrRenderTarget* renderTarget = renderTargetContext->accessRenderTarget();
     if (!renderTarget) {
         SkASSERT(false);
@@ -345,7 +345,7 @@ GrOp* GrRenderTargetOpList::recordOp(std::unique_ptr<GrOp> op,
                           candidate.fOp->uniqueID());
                 break;
             }
-            if (this->combineIfPossible(candidate, op.get(), clip, dstTexture, *caps)) {
+            if (this->combineIfPossible(candidate, op.get(), clip, dstProxy, *caps)) {
                 GrOP_INFO("\t\tBackward: Combining with (%s, opID: %u)\n", candidate.fOp->name(),
                           candidate.fOp->uniqueID());
                 GrOP_INFO("\t\t\tBackward: Combined op info:\n");
@@ -373,7 +373,7 @@ GrOp* GrRenderTargetOpList::recordOp(std::unique_ptr<GrOp> op,
         clip = fClipAllocator.make<GrAppliedClip>(std::move(*clip));
         SkDEBUGCODE(fNumClips++;)
     }
-    fRecordedOps.emplace_back(std::move(op), renderTarget, clip, dstTexture);
+    fRecordedOps.emplace_back(std::move(op), renderTarget, clip, dstProxy);
     fRecordedOps.back().fOp->wasRecorded(this);
     fLastFullClearOp = nullptr;
     fLastFullClearResourceID.makeInvalid();
@@ -404,7 +404,7 @@ void GrRenderTargetOpList::forwardCombine(const GrCaps& caps) {
                 break;
             }
             if (this->combineIfPossible(fRecordedOps[i], candidate.fOp.get(),
-                                        candidate.fAppliedClip, &candidate.fDstTexture, caps)) {
+                                        candidate.fAppliedClip, &candidate.fDstProxy, caps)) {
                 GrOP_INFO("\t\tForward: Combining with (%s, opID: %u)\n", candidate.fOp->name(),
                           candidate.fOp->uniqueID());
                 GR_AUDIT_TRAIL_OPS_RESULT_COMBINED(fAuditTrail, op, candidate.fOp.get());
diff --git a/src/gpu/GrRenderTargetOpList.h b/src/gpu/GrRenderTargetOpList.h
index aa8c6c69f8..9556bfb237 100644
--- a/src/gpu/GrRenderTargetOpList.h
+++ b/src/gpu/GrRenderTargetOpList.h
@@ -30,7 +30,7 @@ class GrRenderTargetProxy;
 
 class GrRenderTargetOpList final : public GrOpList {
 private:
-    using DstTexture = GrXferProcessor::DstTexture;
+    using DstProxy = GrXferProcessor::DstProxy;
 
 public:
     GrRenderTargetOpList(GrRenderTargetProxy*, GrGpu*, GrAuditTrail*);
@@ -70,9 +70,9 @@ public:
         return this->uniqueID();
     }
     uint32_t addOp(std::unique_ptr<GrOp> op, GrRenderTargetContext* renderTargetContext,
-                   GrAppliedClip&& clip, const DstTexture& dstTexture) {
+                   GrAppliedClip&& clip, const DstProxy& dstProxy) {
         this->recordOp(std::move(op), renderTargetContext, clip.doesClip() ? &clip : nullptr,
-                       &dstTexture);
+                       &dstProxy);
         return this->uniqueID();
     }
 
@@ -116,31 +116,31 @@ private:
         RecordedOp(std::unique_ptr<GrOp> op,
                    GrRenderTarget* rt,
                    const GrAppliedClip* appliedClip,
-                   const DstTexture* dstTexture)
+                   const DstProxy* dstProxy)
                 : fOp(std::move(op))
                 , fRenderTarget(rt)
                 , fAppliedClip(appliedClip) {
-            if (dstTexture) {
-                fDstTexture = *dstTexture;
+            if (dstProxy) {
+                fDstProxy = *dstProxy;
             }
         }
         std::unique_ptr<GrOp> fOp;
         // TODO: These ops will all to target the same render target and this won't be needed.
         GrPendingIOResource<GrRenderTarget, kWrite_GrIOType> fRenderTarget;
-        DstTexture fDstTexture;
+        DstProxy fDstProxy;
         const GrAppliedClip* fAppliedClip;
     };
 
     // If the input op is combined with an earlier op, this returns the combined op. Otherwise, it
     // returns the input op.
     GrOp* recordOp(std::unique_ptr<GrOp>, GrRenderTargetContext*, GrAppliedClip* = nullptr,
-                   const DstTexture* = nullptr);
+                   const DstProxy* = nullptr);
 
     void forwardCombine(const GrCaps&);
 
     // If this returns true then b has been merged into a's op.
     bool combineIfPossible(const RecordedOp& a, GrOp* b, const GrAppliedClip* bClip,
-                           const DstTexture* bDstTexture, const GrCaps&);
+                           const DstProxy* bDstTexture, const GrCaps&);
 
     GrClearOp* fLastFullClearOp = nullptr;
     GrGpuResource::UniqueID fLastFullClearResourceID = GrGpuResource::UniqueID::InvalidID();
diff --git a/src/gpu/GrXferProcessor.h b/src/gpu/GrXferProcessor.h
index a739c8b29e..a848a96d0a 100644
--- a/src/gpu/GrXferProcessor.h
+++ b/src/gpu/GrXferProcessor.h
@@ -55,45 +55,55 @@ public:
      * to the space of the texture. Depending on GPU capabilities a DstTexture may be used by a
      * GrXferProcessor for blending in the fragment shader.
      */
-    class DstTexture {
+    class DstProxy {
     public:
-        DstTexture() { fOffset.set(0, 0); }
+        DstProxy() { fOffset.set(0, 0); }
 
-        DstTexture(const DstTexture& other) {
+        DstProxy(const DstProxy& other) {
             *this = other;
         }
 
-        DstTexture(GrTexture* texture, const SkIPoint& offset)
-                : fTexture(SkSafeRef(texture)), fOffset(texture ? offset : SkIPoint{0, 0}) {}
+        DstProxy(sk_sp<GrTextureProxy> proxy, const SkIPoint& offset)
+            : fProxy(std::move(proxy)) {
+            if (fProxy) {
+                fOffset = offset;
+            } else {
+                fOffset.set(0, 0);
+            }
+        }
 
-        DstTexture& operator=(const DstTexture& other) {
-            fTexture = other.fTexture;
+        DstProxy& operator=(const DstProxy& other) {
+            fProxy = other.fProxy;
             fOffset = other.fOffset;
             return *this;
         }
 
-        bool operator==(const DstTexture& that) const {
-            return fTexture == that.fTexture && fOffset == that.fOffset;
+        bool operator==(const DstProxy& that) const {
+            return fProxy == that.fProxy && fOffset == that.fOffset;
         }
-        bool operator!=(const DstTexture& that) const { return !(*this == that); }
+        bool operator!=(const DstProxy& that) const { return !(*this == that); }
 
         const SkIPoint& offset() const { return fOffset; }
 
         void setOffset(const SkIPoint& offset) { fOffset = offset; }
         void setOffset(int ox, int oy) { fOffset.set(ox, oy); }
 
-        GrTexture* texture() const { return fTexture.get(); }
+        GrTextureProxy* proxy() const { return fProxy.get(); }
 
-        void setTexture(sk_sp<GrTexture> texture) {
-            fTexture = std::move(texture);
-            if (!fTexture) {
+        void setProxy(sk_sp<GrTextureProxy> proxy) {
+            fProxy = std::move(proxy);
+            if (!fProxy) {
                 fOffset = {0, 0};
             }
         }
 
+        bool instantiate(GrResourceProvider* resourceProvider) {
+            return SkToBool(fProxy->instantiate(resourceProvider));
+        }
+
     private:
-        sk_sp<GrTexture> fTexture;
-        SkIPoint         fOffset;
+        sk_sp<GrTextureProxy> fProxy;
+        SkIPoint              fOffset;
     };
 
     /**
@@ -234,7 +244,7 @@ private:
 #endif
 class GrXPFactory {
 public:
-    typedef GrXferProcessor::DstTexture DstTexture;
+    typedef GrXferProcessor::DstProxy DstProxy;
 
     enum class AnalysisProperties : unsigned {
         kNone = 0x0,
diff --git a/src/gpu/gl/GrGLProgram.cpp b/src/gpu/gl/GrGLProgram.cpp
index ec08bf4634..8277d6eb4e 100644
--- a/src/gpu/gl/GrGLProgram.cpp
+++ b/src/gpu/gl/GrGLProgram.cpp
@@ -92,7 +92,12 @@ void GrGLProgram::setData(const GrPrimitiveProcessor& primProc, const GrPipeline
 
     const GrXferProcessor& xp = pipeline.getXferProcessor();
     SkIPoint offset;
-    GrTexture* dstTexture = pipeline.dstTexture(&offset);
+    GrTextureProxy* dstProxy = pipeline.dstTextureProxy(&offset);
+    GrTexture* dstTexture = nullptr;
+    if (dstProxy) {
+        dstTexture = dstProxy->priv().peekTexture();
+    }
+
     fXferProcessor->setData(fProgramDataManager, xp, dstTexture, offset);
     if (dstTexture) {
         fGpu->bindTexture(nextTexSamplerIdx++, GrSamplerParams::ClampNoFilter(), true,
diff --git a/src/gpu/glsl/GrGLSLProgramBuilder.cpp b/src/gpu/glsl/GrGLSLProgramBuilder.cpp
index 96b3359d4e..2a895125e8 100644
--- a/src/gpu/glsl/GrGLSLProgramBuilder.cpp
+++ b/src/gpu/glsl/GrGLSLProgramBuilder.cpp
@@ -237,7 +237,10 @@ void GrGLSLProgramBuilder::emitAndInstallXferProc(const SkString& colorIn,
 
     SamplerHandle dstTextureSamplerHandle;
     GrSurfaceOrigin dstTextureOrigin = kTopLeft_GrSurfaceOrigin;
-    if (GrTexture* dstTexture = fPipeline.dstTexture()) {
+
+    if (GrTextureProxy* dstTextureProxy = fPipeline.dstTextureProxy()) {
+        GrTexture* dstTexture = dstTextureProxy->priv().peekTexture();
+
         // GrProcessor::TextureSampler sampler(dstTexture);
         SkString name("DstTextureSampler");
         dstTextureSamplerHandle =
diff --git a/src/gpu/instanced/InstancedOp.cpp b/src/gpu/instanced/InstancedOp.cpp
index 83a10da410..f0f1cc0d2d 100644
--- a/src/gpu/instanced/InstancedOp.cpp
+++ b/src/gpu/instanced/InstancedOp.cpp
@@ -229,6 +229,7 @@ void InstancedOp::onExecute(GrOpFlushState* state) {
     GrPipeline::InitArgs args;
     args.fAppliedClip = state->drawOpArgs().fAppliedClip;
     args.fCaps = &state->caps();
+    args.fResourceProvider = state->resourceProvider();
     args.fProcessors = &fProcessors;
     args.fFlags = GrAATypeIsHW(fInfo.aaType()) ? GrPipeline::kHWAntialias_Flag : 0;
     if (fAllowsSRGBInputs) {
@@ -238,7 +239,7 @@ void InstancedOp::onExecute(GrOpFlushState* state) {
         args.fFlags |= GrPipeline::kDisableOutputConversionToSRGB_Flag;
     }
     args.fRenderTarget = state->drawOpArgs().fRenderTarget;
-    args.fDstTexture = state->drawOpArgs().fDstTexture;
+    args.fDstProxy = state->drawOpArgs().fDstProxy;
     pipeline.init(args);
 
     if (GrXferBarrierType barrierType = pipeline.xferBarrierType(*state->gpu()->caps())) {
diff --git a/src/gpu/ops/GrDrawPathOp.cpp b/src/gpu/ops/GrDrawPathOp.cpp
index ccb12bfe9c..c33af39365 100644
--- a/src/gpu/ops/GrDrawPathOp.cpp
+++ b/src/gpu/ops/GrDrawPathOp.cpp
@@ -48,7 +48,8 @@ void GrDrawPathOpBase::initPipeline(const GrOpFlushState& state, GrPipeline* pip
     args.fAppliedClip = state.drawOpArgs().fAppliedClip;
     args.fRenderTarget = state.drawOpArgs().fRenderTarget;
     args.fCaps = &state.caps();
-    args.fDstTexture = state.drawOpArgs().fDstTexture;
+    args.fResourceProvider = state.resourceProvider();
+    args.fDstProxy = state.drawOpArgs().fDstProxy;
 
     return pipeline->init(args);
 }
diff --git a/src/gpu/ops/GrSimpleMeshDrawOpHelper.h b/src/gpu/ops/GrSimpleMeshDrawOpHelper.h
index 427543bc98..c230257c1c 100644
--- a/src/gpu/ops/GrSimpleMeshDrawOpHelper.h
+++ b/src/gpu/ops/GrSimpleMeshDrawOpHelper.h
@@ -137,8 +137,9 @@ protected:
         args.fProcessors = &this->processors();
         args.fRenderTarget = target->renderTarget();
         args.fAppliedClip = target->clip();
-        args.fDstTexture = target->dstTexture();
+        args.fDstProxy = target->dstProxy();
         args.fCaps = &target->caps();
+        args.fResourceProvider = target->resourceProvider();
         return args;
     }
 
diff --git a/src/gpu/vk/GrVkGpuCommandBuffer.cpp b/src/gpu/vk/GrVkGpuCommandBuffer.cpp
index 124802d3b2..b3aa7c001a 100644
--- a/src/gpu/vk/GrVkGpuCommandBuffer.cpp
+++ b/src/gpu/vk/GrVkGpuCommandBuffer.cpp
@@ -533,7 +533,8 @@ void GrVkGpuCommandBuffer::onDraw(const GrPipeline& pipeline,
     while (const GrFragmentProcessor* fp = iter.next()) {
         prepare_sampled_images(*fp, fGpu);
     }
-    if (GrVkTexture* dstTexture = static_cast<GrVkTexture*>(pipeline.dstTexture())) {
+    if (GrTextureProxy* dstTextureProxy = pipeline.dstTextureProxy()) {
+        GrVkTexture* dstTexture = static_cast<GrVkTexture*>(dstTextureProxy->priv().peekTexture());
         set_texture_layout(dstTexture, fGpu);
     }
 
diff --git a/src/gpu/vk/GrVkPipelineState.cpp b/src/gpu/vk/GrVkPipelineState.cpp
index c4d723f9c2..3948fa87d2 100644
--- a/src/gpu/vk/GrVkPipelineState.cpp
+++ b/src/gpu/vk/GrVkPipelineState.cpp
@@ -7,6 +7,7 @@
 
 #include "GrVkPipelineState.h"
 
+#include "GrContext.h"
 #include "GrPipeline.h"
 #include "GrTexturePriv.h"
 #include "GrVkBufferView.h"
@@ -258,12 +259,17 @@ void GrVkPipelineState::setData(GrVkGpu* gpu,
     SkASSERT(!fp && !glslFP);
 
     SkIPoint offset;
-    GrTexture* dstTexture = pipeline.dstTexture(&offset);
+    GrTextureProxy* dstTextureProxy = nullptr;
+    GrTexture* dstTexture = nullptr;
+    if (dstTextureProxy = pipeline.dstTextureProxy(&offset)) {
+        dstTexture = dstTextureProxy->priv().peekTexture();
+    }
+
     fXferProcessor->setData(fDataManager, pipeline.getXferProcessor(), dstTexture, offset);
     GrResourceIOProcessor::TextureSampler dstTextureSampler;
-    if (dstTexture) {
+    if (dstTextureProxy) {
         // MDB TODO: this is the last usage of a GrTexture-based TextureSampler reset method
-        dstTextureSampler.reset(dstTexture);
+        dstTextureSampler.reset(gpu->getContext()->resourceProvider(), sk_ref_sp(dstTextureProxy));
         textureBindings.push_back(&dstTextureSampler);
     }
 
diff --git a/tests/GrPorterDuffTest.cpp b/tests/GrPorterDuffTest.cpp
index 780573d34f..e43347e641 100644
--- a/tests/GrPorterDuffTest.cpp
+++ b/tests/GrPorterDuffTest.cpp
@@ -1044,11 +1044,12 @@ DEF_GPUTEST(PorterDuffNoDualSourceBlending, reporter, /*factory*/) {
                                                                kRGBA_8888_GrPixelConfig,
                                                                backendTexHandle);
 
-    GrXferProcessor::DstTexture fakeDstTexture;
-    fakeDstTexture.setTexture(
-        ctx->resourceProvider()->wrapBackendTexture(backendTex, kTopLeft_GrSurfaceOrigin,
-                                                    kNone_GrBackendTextureFlag, 0,
-                                                    kBorrow_GrWrapOwnership));
+    GrXferProcessor::DstProxy fakeDstProxy;
+    {
+        sk_sp<GrTextureProxy> proxy = GrSurfaceProxy::MakeWrappedBackend(ctx, backendTex,
+                                                                         kTopLeft_GrSurfaceOrigin);
+        fakeDstProxy.setProxy(std::move(proxy));
+    }
 
     static const GrProcessorAnalysisColor colorInputs[] = {
             GrProcessorAnalysisColor::Opaque::kNo, GrProcessorAnalysisColor::Opaque::kYes,