Remove asTextureRef from SkSpecialImage & update effects accordingly

This CL also renames SkSpecialImage::asTextureProxy to asTextureProxyRef

Change-Id: I5ed8e475bb9688453b825ae4500ed0e8d324b5ac
Reviewed-on: https://skia-review.googlesource.com/7995
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Robert Phillips <robertphillips@google.com>

16 files changed, 371 insertions, 227 deletions

diff --git a/src/core/SkBlurImageFilter.cpp b/src/core/SkBlurImageFilter.cpp
index 71b5cdc82e..462edb545a 100644
--- a/src/core/SkBlurImageFilter.cpp
+++ b/src/core/SkBlurImageFilter.cpp
@@ -141,7 +141,7 @@ sk_sp<SkSpecialImage> SkBlurImageFilterImpl::onFilterImage(SkSpecialImage* sourc
         // xform during the filter itself.
         input = ImageToColorSpace(input.get(), ctx.outputProperties());
 
-        sk_sp<GrTextureProxy> inputTexture(input->asTextureProxy(context));
+        sk_sp<GrTextureProxy> inputTexture(input->asTextureProxyRef(context));
         if (!inputTexture) {
             return nullptr;
         }
diff --git a/src/core/SkSpecialImage.cpp b/src/core/SkSpecialImage.cpp
index 0ec5459127..b1791c99c2 100644
--- a/src/core/SkSpecialImage.cpp
+++ b/src/core/SkSpecialImage.cpp
@@ -50,8 +50,7 @@ public:
     virtual SkColorSpace* onGetColorSpace() const = 0;
 
 #if SK_SUPPORT_GPU
-    virtual sk_sp<GrTexture> onAsTextureRef(GrContext* context) const = 0;
-    virtual sk_sp<GrTextureProxy> onAsTextureProxy(GrContext* context) const = 0;
+    virtual sk_sp<GrTextureProxy> onAsTextureProxyRef(GrContext* context) const = 0;
 #endif
 
     virtual sk_sp<SkSpecialImage> onMakeSubset(const SkIRect& subset) const = 0;
@@ -139,12 +138,8 @@ SkColorSpace* SkSpecialImage::getColorSpace() const {
 }
 
 #if SK_SUPPORT_GPU
-sk_sp<GrTexture> SkSpecialImage::asTextureRef(GrContext* context) const {
-    return as_SIB(this)->onAsTextureRef(context);
-}
-
-sk_sp<GrTextureProxy> SkSpecialImage::asTextureProxy(GrContext* context) const {
-    return as_SIB(this)->onAsTextureProxy(context);
+sk_sp<GrTextureProxy> SkSpecialImage::asTextureProxyRef(GrContext* context) const {
+    return as_SIB(this)->onAsTextureProxyRef(context);
 }
 #endif
 
@@ -242,16 +237,7 @@ public:
     }
 
 #if SK_SUPPORT_GPU
-    sk_sp<GrTexture> onAsTextureRef(GrContext* context) const override {
-        if (context) {
-            return sk_ref_sp(GrRefCachedBitmapTexture(context, fBitmap,
-                                                      GrSamplerParams::ClampNoFilter(), nullptr));
-        }
-
-        return nullptr;
-    }
-
-    sk_sp<GrTextureProxy> onAsTextureProxy(GrContext* context) const override {
+    sk_sp<GrTextureProxy> onAsTextureProxyRef(GrContext* context) const override {
         if (context) {
             sk_sp<GrTexture> tex(sk_ref_sp(GrRefCachedBitmapTexture(
                 context, fBitmap, GrSamplerParams::ClampNoFilter(), nullptr)));
@@ -428,16 +414,7 @@ public:
 
     GrContext* onGetContext() const override { return fContext; }
 
-    // This entry point should go away in favor of asTextureProxy
-    sk_sp<GrTexture> onAsTextureRef(GrContext* context) const override {
-        GrSurface* surf = fSurfaceProxy->instantiate(context->textureProvider());
-        if (!surf) {
-            return nullptr;
-        }
-        return sk_ref_sp(surf->asTexture());
-    }
-
-    sk_sp<GrTextureProxy> onAsTextureProxy(GrContext*) const override {
+    sk_sp<GrTextureProxy> onAsTextureProxyRef(GrContext*) const override {
         return sk_ref_sp(fSurfaceProxy->asTextureProxy());
     }
 
diff --git a/src/core/SkSpecialImage.h b/src/core/SkSpecialImage.h
index bf168f02af..8ccff0e056 100644
--- a/src/core/SkSpecialImage.h
+++ b/src/core/SkSpecialImage.h
@@ -136,15 +136,10 @@ public:
 
 #if SK_SUPPORT_GPU
     /**
-     *  Regardless of the underlying backing store, return the contents as a GrTexture.
+     *  Regardless of the underlying backing store, return the contents as a GrTextureProxy.
      *  The active portion of the texture can be retrieved via 'subset'.
      */
-    sk_sp<GrTexture> asTextureRef(GrContext*) const;
-
-    /**
-     *  The same as above but return the contents as a GrTextureProxy.
-     */
-    sk_sp<GrTextureProxy> asTextureProxy(GrContext*) const;
+    sk_sp<GrTextureProxy> asTextureProxyRef(GrContext*) const;
 #endif
 
     // TODO: hide this whe the imagefilter all have a consistent draw path (see skbug.com/5063)
diff --git a/src/effects/GrAlphaThresholdFragmentProcessor.cpp b/src/effects/GrAlphaThresholdFragmentProcessor.cpp
index a18fb9c1e9..b83ed779c9 100644
--- a/src/effects/GrAlphaThresholdFragmentProcessor.cpp
+++ b/src/effects/GrAlphaThresholdFragmentProcessor.cpp
@@ -9,6 +9,7 @@
 
 #if SK_SUPPORT_GPU
 
+#include "GrContext.h"
 #include "GrInvariantOutput.h"
 #include "SkRefCnt.h"
 
@@ -18,20 +19,6 @@
 #include "glsl/GrGLSLUniformHandler.h"
 #include "../private/GrGLSL.h"
 
-sk_sp<GrFragmentProcessor> GrAlphaThresholdFragmentProcessor::Make(
-                                                           GrTexture* texture,
-                                                           sk_sp<GrColorSpaceXform> colorSpaceXform,
-                                                           GrTexture* maskTexture,
-                                                           float innerThreshold,
-                                                           float outerThreshold,
-                                                           const SkIRect& bounds) {
-    return sk_sp<GrFragmentProcessor>(new GrAlphaThresholdFragmentProcessor(
-                                                                texture, std::move(colorSpaceXform),
-                                                                maskTexture,
-                                                                innerThreshold, outerThreshold,
-                                                                bounds));
-}
-
 inline GrFragmentProcessor::OptimizationFlags GrAlphaThresholdFragmentProcessor::OptFlags(float outerThreshold) {
     if (outerThreshold >= 1.f) {
         return kPreservesOpaqueInput_OptimizationFlag | kModulatesInput_OptimizationFlag;
@@ -65,6 +52,33 @@ GrAlphaThresholdFragmentProcessor::GrAlphaThresholdFragmentProcessor(
     this->addTextureSampler(&fMaskTextureSampler);
 }
 
+GrAlphaThresholdFragmentProcessor::GrAlphaThresholdFragmentProcessor(
+                                                           GrContext* context,
+                                                           sk_sp<GrTextureProxy> proxy,
+                                                           sk_sp<GrColorSpaceXform> colorSpaceXform,
+                                                           GrTexture* maskTexture,
+                                                           float innerThreshold,
+                                                           float outerThreshold,
+                                                           const SkIRect& bounds)
+        : INHERITED(OptFlags(outerThreshold))
+        , fInnerThreshold(innerThreshold)
+        , fOuterThreshold(outerThreshold)
+        , fImageCoordTransform(context, SkMatrix::I(), proxy.get(),
+                               GrSamplerParams::kNone_FilterMode)
+        , fImageTextureSampler(context->textureProvider(), std::move(proxy))
+        , fColorSpaceXform(std::move(colorSpaceXform))
+        , fMaskCoordTransform(
+                  SkMatrix::MakeTrans(SkIntToScalar(-bounds.x()), SkIntToScalar(-bounds.y())),
+                  maskTexture,
+                  GrSamplerParams::kNone_FilterMode)
+        , fMaskTextureSampler(maskTexture) {
+    this->initClassID<GrAlphaThresholdFragmentProcessor>();
+    this->addCoordTransform(&fImageCoordTransform);
+    this->addTextureSampler(&fImageTextureSampler);
+    this->addCoordTransform(&fMaskCoordTransform);
+    this->addTextureSampler(&fMaskTextureSampler);
+}
+
 bool GrAlphaThresholdFragmentProcessor::onIsEqual(const GrFragmentProcessor& sBase) const {
     const GrAlphaThresholdFragmentProcessor& s = sBase.cast<GrAlphaThresholdFragmentProcessor>();
     return (this->fInnerThreshold == s.fInnerThreshold &&
diff --git a/src/effects/GrAlphaThresholdFragmentProcessor.h b/src/effects/GrAlphaThresholdFragmentProcessor.h
index f2c14c64bc..bb5aba7ae1 100644
--- a/src/effects/GrAlphaThresholdFragmentProcessor.h
+++ b/src/effects/GrAlphaThresholdFragmentProcessor.h
@@ -25,7 +25,30 @@ public:
                                            GrTexture* maskTexture,
                                            float innerThreshold,
                                            float outerThreshold,
-                                           const SkIRect& bounds);
+                                           const SkIRect& bounds) {
+        return sk_sp<GrFragmentProcessor>(new GrAlphaThresholdFragmentProcessor(
+                                                                    texture,
+                                                                    std::move(colorSpaceXform),
+                                                                    maskTexture,
+                                                                    innerThreshold, outerThreshold,
+                                                                    bounds));
+    }
+
+    static sk_sp<GrFragmentProcessor> Make(GrContext* context,
+                                           sk_sp<GrTextureProxy> proxy,
+                                           sk_sp<GrColorSpaceXform> colorSpaceXform,
+                                           GrTexture* maskTexture,
+                                           float innerThreshold,
+                                           float outerThreshold,
+                                           const SkIRect& bounds) {
+        return sk_sp<GrFragmentProcessor>(new GrAlphaThresholdFragmentProcessor(
+                                                                    context,
+                                                                    std::move(proxy),
+                                                                    std::move(colorSpaceXform),
+                                                                    maskTexture,
+                                                                    innerThreshold, outerThreshold,
+                                                                    bounds));
+    }
 
     const char* name() const override { return "Alpha Threshold"; }
 
@@ -44,6 +67,14 @@ private:
                                       float outerThreshold,
                                       const SkIRect& bounds);
 
+    GrAlphaThresholdFragmentProcessor(GrContext*,
+                                      sk_sp<GrTextureProxy> proxy,
+                                      sk_sp<GrColorSpaceXform> colorSpaceXform,
+                                      GrTexture* maskTexture,
+                                      float innerThreshold,
+                                      float outerThreshold,
+                                      const SkIRect& bounds);
+
     GrGLSLFragmentProcessor* onCreateGLSLInstance() const override;
 
     void onGetGLSLProcessorKey(const GrShaderCaps&, GrProcessorKeyBuilder*) const override;
diff --git a/src/effects/SkAlphaThresholdFilter.cpp b/src/effects/SkAlphaThresholdFilter.cpp
index 0e38cccd65..bd38fb4ada 100644
--- a/src/effects/SkAlphaThresholdFilter.cpp
+++ b/src/effects/SkAlphaThresholdFilter.cpp
@@ -150,8 +150,8 @@ sk_sp<SkSpecialImage> SkAlphaThresholdFilterImpl::onFilterImage(SkSpecialImage*
     if (source->isTextureBacked()) {
         GrContext* context = source->getContext();
 
-        sk_sp<GrTexture> inputTexture(input->asTextureRef(context));
-        SkASSERT(inputTexture);
+        sk_sp<GrTextureProxy> inputProxy(input->asTextureProxyRef(context));
+        SkASSERT(inputProxy);
 
         offset->fX = bounds.left();
         offset->fY = bounds.top();
@@ -175,7 +175,8 @@ sk_sp<SkSpecialImage> SkAlphaThresholdFilterImpl::onFilterImage(SkSpecialImage*
             return nullptr;
         }
         sk_sp<GrFragmentProcessor> fp(GrAlphaThresholdFragmentProcessor::Make(
-                                            inputTexture.get(),
+                                            context,
+                                            std::move(inputProxy),
                                             std::move(colorSpaceXform),
                                             maskTex,
                                             fInnerThreshold,
diff --git a/src/effects/SkArithmeticImageFilter.cpp b/src/effects/SkArithmeticImageFilter.cpp
index 40560690ee..566b27f049 100644
--- a/src/effects/SkArithmeticImageFilter.cpp
+++ b/src/effects/SkArithmeticImageFilter.cpp
@@ -342,26 +342,26 @@ sk_sp<SkSpecialImage> ArithmeticImageFilterImpl::filterImageGPU(
 
     GrContext* context = source->getContext();
 
-    sk_sp<GrTexture> backgroundTex, foregroundTex;
+    sk_sp<GrTextureProxy> backgroundProxy, foregroundProxy;
 
     if (background) {
-        backgroundTex = background->asTextureRef(context);
+        backgroundProxy = background->asTextureProxyRef(context);
     }
 
     if (foreground) {
-        foregroundTex = foreground->asTextureRef(context);
+        foregroundProxy = foreground->asTextureProxyRef(context);
     }
 
     GrPaint paint;
     sk_sp<GrFragmentProcessor> bgFP;
 
-    if (backgroundTex) {
+    if (backgroundProxy) {
         SkMatrix backgroundMatrix = SkMatrix::MakeTrans(-SkIntToScalar(backgroundOffset.fX),
                                                         -SkIntToScalar(backgroundOffset.fY));
         sk_sp<GrColorSpaceXform> bgXform =
                 GrColorSpaceXform::Make(background->getColorSpace(), outputProperties.colorSpace());
         bgFP = GrTextureDomainEffect::Make(
-                backgroundTex.get(), std::move(bgXform), backgroundMatrix,
+                context, std::move(backgroundProxy), std::move(bgXform), backgroundMatrix,
                 GrTextureDomain::MakeTexelDomain(background->subset()),
                 GrTextureDomain::kDecal_Mode, GrSamplerParams::kNone_FilterMode);
     } else {
@@ -369,7 +369,7 @@ sk_sp<SkSpecialImage> ArithmeticImageFilterImpl::filterImageGPU(
                                            GrConstColorProcessor::kIgnore_InputMode);
     }
 
-    if (foregroundTex) {
+    if (foregroundProxy) {
         SkMatrix foregroundMatrix = SkMatrix::MakeTrans(-SkIntToScalar(foregroundOffset.fX),
                                                         -SkIntToScalar(foregroundOffset.fY));
         sk_sp<GrColorSpaceXform> fgXform =
@@ -377,7 +377,7 @@ sk_sp<SkSpecialImage> ArithmeticImageFilterImpl::filterImageGPU(
         sk_sp<GrFragmentProcessor> foregroundFP;
 
         foregroundFP = GrTextureDomainEffect::Make(
-                foregroundTex.get(), std::move(fgXform), foregroundMatrix,
+                context, std::move(foregroundProxy), std::move(fgXform), foregroundMatrix,
                 GrTextureDomain::MakeTexelDomain(foreground->subset()),
                 GrTextureDomain::kDecal_Mode, GrSamplerParams::kNone_FilterMode);
 
diff --git a/src/effects/SkDisplacementMapEffect.cpp b/src/effects/SkDisplacementMapEffect.cpp
index 67fb761ed4..726be6b780 100644
--- a/src/effects/SkDisplacementMapEffect.cpp
+++ b/src/effects/SkDisplacementMapEffect.cpp
@@ -229,6 +229,19 @@ public:
                                         colorDimensions));
     }
 
+    static sk_sp<GrFragmentProcessor> Make(GrContext* context,
+                SkDisplacementMapEffect::ChannelSelectorType xChannelSelector,
+                SkDisplacementMapEffect::ChannelSelectorType yChannelSelector, SkVector scale,
+                sk_sp<GrTextureProxy> displacement, const SkMatrix& offsetMatrix,
+                sk_sp<GrTextureProxy> color,
+                sk_sp<GrColorSpaceXform> colorSpaceXform, const SkISize& colorDimensions) {
+        return sk_sp<GrFragmentProcessor>(
+            new GrDisplacementMapEffect(context, xChannelSelector, yChannelSelector, scale,
+                                        std::move(displacement),
+                                        offsetMatrix, std::move(color), std::move(colorSpaceXform),
+                                        colorDimensions));
+    }
+
     virtual ~GrDisplacementMapEffect();
 
     SkDisplacementMapEffect::ChannelSelectorType xChannelSelector() const {
@@ -259,6 +272,14 @@ private:
                             GrTexture* color, sk_sp<GrColorSpaceXform> colorSpaceXform,
                             const SkISize& colorDimensions);
 
+    GrDisplacementMapEffect(GrContext*,
+                            SkDisplacementMapEffect::ChannelSelectorType xChannelSelector,
+                            SkDisplacementMapEffect::ChannelSelectorType yChannelSelector,
+                            const SkVector& scale,
+                            sk_sp<GrTextureProxy> displacement, const SkMatrix& offsetMatrix,
+                            sk_sp<GrTextureProxy> color, sk_sp<GrColorSpaceXform> colorSpaceXform,
+                            const SkISize& colorDimensions);
+
     GR_DECLARE_FRAGMENT_PROCESSOR_TEST;
 
     GrCoordTransform            fDisplacementTransform;
@@ -330,9 +351,9 @@ sk_sp<SkSpecialImage> SkDisplacementMapEffect::onFilterImage(SkSpecialImage* sou
     if (source->isTextureBacked()) {
         GrContext* context = source->getContext();
 
-        sk_sp<GrTexture> colorTexture(color->asTextureRef(context));
-        sk_sp<GrTexture> displTexture(displ->asTextureRef(context));
-        if (!colorTexture || !displTexture) {
+        sk_sp<GrTextureProxy> colorProxy(color->asTextureProxyRef(context));
+        sk_sp<GrTextureProxy> displProxy(displ->asTextureProxyRef(context));
+        if (!colorProxy || !displProxy) {
             return nullptr;
         }
 
@@ -343,12 +364,13 @@ sk_sp<SkSpecialImage> SkDisplacementMapEffect::onFilterImage(SkSpecialImage* sou
                                                                            colorSpace);
         GrPaint paint;
         paint.addColorFragmentProcessor(
-            GrDisplacementMapEffect::Make(fXChannelSelector,
+            GrDisplacementMapEffect::Make(context,
+                                          fXChannelSelector,
                                           fYChannelSelector,
                                           scale,
-                                          displTexture.get(),
+                                          std::move(displProxy),
                                           offsetMatrix,
-                                          colorTexture.get(),
+                                          std::move(colorProxy),
                                           std::move(colorSpaceXform),
                                           SkISize::Make(color->width(), color->height())));
         paint.setPorterDuffXPFactory(SkBlendMode::kSrc);
@@ -514,6 +536,36 @@ GrDisplacementMapEffect::GrDisplacementMapEffect(
     this->addTextureSampler(&fColorSampler);
 }
 
+GrDisplacementMapEffect::GrDisplacementMapEffect(
+        GrContext* context,
+        SkDisplacementMapEffect::ChannelSelectorType xChannelSelector,
+        SkDisplacementMapEffect::ChannelSelectorType yChannelSelector,
+        const SkVector& scale,
+        sk_sp<GrTextureProxy> displacement,
+        const SkMatrix& offsetMatrix,
+        sk_sp<GrTextureProxy> color,
+        sk_sp<GrColorSpaceXform> colorSpaceXform,
+        const SkISize& colorDimensions)
+        : INHERITED(GrPixelConfigIsOpaque(color->config()) ? kPreservesOpaqueInput_OptimizationFlag
+                                                           : kNone_OptimizationFlags)
+        , fDisplacementTransform(context, offsetMatrix, displacement.get(),
+                                 GrSamplerParams::kNone_FilterMode)
+        , fDisplacementSampler(context->textureProvider(), displacement)
+        , fColorTransform(context, color.get(), GrSamplerParams::kNone_FilterMode)
+        , fDomain(color.get(), GrTextureDomain::MakeTexelDomain(SkIRect::MakeSize(colorDimensions)),
+                  GrTextureDomain::kDecal_Mode)
+        , fColorSampler(context->textureProvider(), color)
+        , fColorSpaceXform(std::move(colorSpaceXform))
+        , fXChannelSelector(xChannelSelector)
+        , fYChannelSelector(yChannelSelector)
+        , fScale(scale) {
+    this->initClassID<GrDisplacementMapEffect>();
+    this->addCoordTransform(&fDisplacementTransform);
+    this->addTextureSampler(&fDisplacementSampler);
+    this->addCoordTransform(&fColorTransform);
+    this->addTextureSampler(&fColorSampler);
+}
+
 GrDisplacementMapEffect::~GrDisplacementMapEffect() {
 }
 
diff --git a/src/effects/SkImageSource.cpp b/src/effects/SkImageSource.cpp
index 5769e677a1..9c32cf8775 100644
--- a/src/effects/SkImageSource.cpp
+++ b/src/effects/SkImageSource.cpp
@@ -93,6 +93,7 @@ sk_sp<SkSpecialImage> SkImageSource::onFilterImage(SkSpecialImage* source, const
             // The dest is just an un-scaled integer translation of the entire image; return it
             offset->fX = iLeft;
             offset->fY = iTop;
+
             return SkSpecialImage::MakeFromImage(SkIRect::MakeWH(fImage->width(), fImage->height()),
                                                  fImage, ctx.outputProperties().colorSpace(),
                                                  &source->props());
diff --git a/src/effects/SkLightingImageFilter.cpp b/src/effects/SkLightingImageFilter.cpp
index 92057f0802..fefb2ff077 100644
--- a/src/effects/SkLightingImageFilter.cpp
+++ b/src/effects/SkLightingImageFilter.cpp
@@ -365,15 +365,15 @@ protected:
                                          const SkIRect& bounds,
                                          const SkMatrix& matrix,
                                          const OutputProperties& outputProperties) const;
-    virtual sk_sp<GrFragmentProcessor> makeFragmentProcessor(GrTexture*,
+    virtual sk_sp<GrFragmentProcessor> makeFragmentProcessor(GrContext*, sk_sp<GrTextureProxy>,
                                                              const SkMatrix&,
                                                              const SkIRect* srcBounds,
                                                              BoundaryMode boundaryMode) const = 0;
 #endif
 private:
 #if SK_SUPPORT_GPU
-    void drawRect(GrRenderTargetContext* renderTargetContext,
-                  GrTexture* src,
+    void drawRect(GrContext*, GrRenderTargetContext*,
+                  sk_sp<GrTextureProxy> srcProxy,
                   const SkMatrix& matrix,
                   const GrClip& clip,
                   const SkRect& dstRect,
@@ -385,8 +385,9 @@ private:
 };
 
 #if SK_SUPPORT_GPU
-void SkLightingImageFilterInternal::drawRect(GrRenderTargetContext* renderTargetContext,
-                                             GrTexture* src,
+void SkLightingImageFilterInternal::drawRect(GrContext* context,
+                                             GrRenderTargetContext* renderTargetContext,
+                                             sk_sp<GrTextureProxy> srcProxy,
                                              const SkMatrix& matrix,
                                              const GrClip& clip,
                                              const SkRect& dstRect,
@@ -396,7 +397,8 @@ void SkLightingImageFilterInternal::drawRect(GrRenderTargetContext* renderTarget
     SkRect srcRect = dstRect.makeOffset(SkIntToScalar(bounds.x()), SkIntToScalar(bounds.y()));
     GrPaint paint;
     paint.setGammaCorrect(renderTargetContext->isGammaCorrect());
-    sk_sp<GrFragmentProcessor> fp(this->makeFragmentProcessor(src, matrix, srcBounds,
+    sk_sp<GrFragmentProcessor> fp(this->makeFragmentProcessor(context, std::move(srcProxy),
+                                                              matrix, srcBounds,
                                                               boundaryMode));
     paint.addColorFragmentProcessor(std::move(fp));
     paint.setPorterDuffXPFactory(SkBlendMode::kSrc);
@@ -414,8 +416,8 @@ sk_sp<SkSpecialImage> SkLightingImageFilterInternal::filterImageGPU(
 
     GrContext* context = source->getContext();
 
-    sk_sp<GrTexture> inputTexture(input->asTextureRef(context));
-    SkASSERT(inputTexture);
+    sk_sp<GrTextureProxy> inputProxy(input->asTextureProxyRef(context));
+    SkASSERT(inputProxy);
 
     sk_sp<GrRenderTargetContext> renderTargetContext(context->makeDeferredRenderTargetContext(
                                 SkBackingFit::kApprox, offsetBounds.width(), offsetBounds.height(),
@@ -443,23 +445,23 @@ sk_sp<SkSpecialImage> SkLightingImageFilterInternal::filterImageGPU(
     SkRect bottomRight = SkRect::MakeXYWH(dstRect.width() - 1, dstRect.height() - 1, 1, 1);
 
     const SkIRect* pSrcBounds = inputBounds.contains(offsetBounds) ? nullptr : &inputBounds;
-    this->drawRect(renderTargetContext.get(), inputTexture.get(), matrix, clip, topLeft,
+    this->drawRect(context, renderTargetContext.get(), inputProxy, matrix, clip, topLeft,
                    kTopLeft_BoundaryMode, pSrcBounds, offsetBounds);
-    this->drawRect(renderTargetContext.get(), inputTexture.get(), matrix, clip, top,
+    this->drawRect(context, renderTargetContext.get(), inputProxy, matrix, clip, top,
                    kTop_BoundaryMode, pSrcBounds, offsetBounds);
-    this->drawRect(renderTargetContext.get(), inputTexture.get(), matrix, clip, topRight,
+    this->drawRect(context, renderTargetContext.get(), inputProxy, matrix, clip, topRight,
                    kTopRight_BoundaryMode, pSrcBounds, offsetBounds);
-    this->drawRect(renderTargetContext.get(), inputTexture.get(), matrix, clip, left,
+    this->drawRect(context, renderTargetContext.get(), inputProxy, matrix, clip, left,
                    kLeft_BoundaryMode, pSrcBounds, offsetBounds);
-    this->drawRect(renderTargetContext.get(), inputTexture.get(), matrix, clip, interior,
+    this->drawRect(context, renderTargetContext.get(), inputProxy, matrix, clip, interior,
                    kInterior_BoundaryMode, pSrcBounds, offsetBounds);
-    this->drawRect(renderTargetContext.get(), inputTexture.get(), matrix, clip, right,
+    this->drawRect(context, renderTargetContext.get(), inputProxy, matrix, clip, right,
                    kRight_BoundaryMode, pSrcBounds, offsetBounds);
-    this->drawRect(renderTargetContext.get(), inputTexture.get(), matrix, clip, bottomLeft,
+    this->drawRect(context, renderTargetContext.get(), inputProxy, matrix, clip, bottomLeft,
                    kBottomLeft_BoundaryMode, pSrcBounds, offsetBounds);
-    this->drawRect(renderTargetContext.get(), inputTexture.get(), matrix, clip, bottom,
+    this->drawRect(context, renderTargetContext.get(), inputProxy, matrix, clip, bottom,
                    kBottom_BoundaryMode, pSrcBounds, offsetBounds);
-    this->drawRect(renderTargetContext.get(), inputTexture.get(), matrix, clip, bottomRight,
+    this->drawRect(context, renderTargetContext.get(), inputProxy, matrix, clip, bottomRight,
                    kBottomRight_BoundaryMode, pSrcBounds, offsetBounds);
 
     return SkSpecialImage::MakeDeferredFromGpu(
@@ -493,8 +495,8 @@ protected:
                                         SkIPoint* offset) const override;
 
 #if SK_SUPPORT_GPU
-    sk_sp<GrFragmentProcessor> makeFragmentProcessor(GrTexture*, const SkMatrix&,
-                                                     const SkIRect* bounds,
+    sk_sp<GrFragmentProcessor> makeFragmentProcessor(GrContext*, sk_sp<GrTextureProxy>,
+                                                     const SkMatrix&, const SkIRect* bounds,
                                                      BoundaryMode) const override;
 #endif
 
@@ -529,8 +531,8 @@ protected:
                                         SkIPoint* offset) const override;
 
 #if SK_SUPPORT_GPU
-    sk_sp<GrFragmentProcessor> makeFragmentProcessor(GrTexture*, const SkMatrix&,
-                                                     const SkIRect* bounds,
+    sk_sp<GrFragmentProcessor> makeFragmentProcessor(GrContext*, sk_sp<GrTextureProxy>,
+                                                     const SkMatrix&, const SkIRect* bounds,
                                                      BoundaryMode) const override;
 #endif
 
@@ -545,7 +547,8 @@ private:
 
 class GrLightingEffect : public GrSingleTextureEffect {
 public:
-    GrLightingEffect(GrTexture* texture, const SkImageFilterLight* light, SkScalar surfaceScale,
+    GrLightingEffect(GrContext*, sk_sp<GrTextureProxy>,
+                     const SkImageFilterLight* light, SkScalar surfaceScale,
                      const SkMatrix& matrix, BoundaryMode boundaryMode, const SkIRect* srcBounds);
     ~GrLightingEffect() override;
 
@@ -575,7 +578,8 @@ private:
 
 class GrDiffuseLightingEffect : public GrLightingEffect {
 public:
-    static sk_sp<GrFragmentProcessor> Make(GrTexture* texture,
+    static sk_sp<GrFragmentProcessor> Make(GrContext* context,
+                                           sk_sp<GrTextureProxy> proxy,
                                            const SkImageFilterLight* light,
                                            SkScalar surfaceScale,
                                            const SkMatrix& matrix,
@@ -583,8 +587,8 @@ public:
                                            BoundaryMode boundaryMode,
                                            const SkIRect* srcBounds) {
         return sk_sp<GrFragmentProcessor>(
-            new GrDiffuseLightingEffect(texture, light, surfaceScale, matrix, kd, boundaryMode,
-                                         srcBounds));
+            new GrDiffuseLightingEffect(context, std::move(proxy), light,
+                                        surfaceScale, matrix, kd, boundaryMode, srcBounds));
     }
 
     const char* name() const override { return "DiffuseLighting"; }
@@ -598,7 +602,7 @@ private:
 
     bool onIsEqual(const GrFragmentProcessor&) const override;
 
-    GrDiffuseLightingEffect(GrTexture* texture,
+    GrDiffuseLightingEffect(GrContext*, sk_sp<GrTextureProxy>,
                             const SkImageFilterLight* light,
                             SkScalar surfaceScale,
                             const SkMatrix& matrix,
@@ -607,13 +611,15 @@ private:
                             const SkIRect* srcBounds);
 
     GR_DECLARE_FRAGMENT_PROCESSOR_TEST;
-    typedef GrLightingEffect INHERITED;
     SkScalar fKD;
+
+    typedef GrLightingEffect INHERITED;
 };
 
 class GrSpecularLightingEffect : public GrLightingEffect {
 public:
-    static sk_sp<GrFragmentProcessor> Make(GrTexture* texture,
+    static sk_sp<GrFragmentProcessor> Make(GrContext* context,
+                                           sk_sp<GrTextureProxy> proxy,
                                            const SkImageFilterLight* light,
                                            SkScalar surfaceScale,
                                            const SkMatrix& matrix,
@@ -622,7 +628,8 @@ public:
                                            BoundaryMode boundaryMode,
                                            const SkIRect* srcBounds) {
         return sk_sp<GrFragmentProcessor>(
-            new GrSpecularLightingEffect(texture, light, surfaceScale, matrix, ks, shininess,
+            new GrSpecularLightingEffect(context, std::move(proxy),
+                                         light, surfaceScale, matrix, ks, shininess,
                                          boundaryMode, srcBounds));
     }
 
@@ -638,7 +645,7 @@ private:
 
     bool onIsEqual(const GrFragmentProcessor&) const override;
 
-    GrSpecularLightingEffect(GrTexture* texture,
+    GrSpecularLightingEffect(GrContext*, sk_sp<GrTextureProxy>,
                              const SkImageFilterLight* light,
                              SkScalar surfaceScale,
                              const SkMatrix& matrix,
@@ -648,9 +655,10 @@ private:
                              const SkIRect* srcBounds);
 
     GR_DECLARE_FRAGMENT_PROCESSOR_TEST;
-    typedef GrLightingEffect INHERITED;
     SkScalar fKS;
     SkScalar fShininess;
+
+    typedef GrLightingEffect INHERITED;
 };
 
 ///////////////////////////////////////////////////////////////////////////////
@@ -1348,12 +1356,14 @@ void SkDiffuseLightingImageFilter::toString(SkString* str) const {
 
 #if SK_SUPPORT_GPU
 sk_sp<GrFragmentProcessor> SkDiffuseLightingImageFilter::makeFragmentProcessor(
-                                                   GrTexture* texture,
+                                                   GrContext* context,
+                                                   sk_sp<GrTextureProxy> proxy,
                                                    const SkMatrix& matrix,
                                                    const SkIRect* srcBounds,
                                                    BoundaryMode boundaryMode) const {
     SkScalar scale = SkScalarMul(this->surfaceScale(), SkIntToScalar(255));
-    return GrDiffuseLightingEffect::Make(texture, this->light(), scale, matrix, this->kd(),
+    return GrDiffuseLightingEffect::Make(context, std::move(proxy),
+                                         this->light(), scale, matrix, this->kd(),
                                          boundaryMode, srcBounds);
 }
 #endif
@@ -1513,12 +1523,14 @@ void SkSpecularLightingImageFilter::toString(SkString* str) const {
 
 #if SK_SUPPORT_GPU
 sk_sp<GrFragmentProcessor> SkSpecularLightingImageFilter::makeFragmentProcessor(
-                                                    GrTexture* texture,
+                                                    GrContext* context,
+                                                    sk_sp<GrTextureProxy> proxy,
                                                     const SkMatrix& matrix,
                                                     const SkIRect* srcBounds,
                                                     BoundaryMode boundaryMode) const {
     SkScalar scale = SkScalarMul(this->surfaceScale(), SkIntToScalar(255));
-    return GrSpecularLightingEffect::Make(texture, this->light(), scale, matrix, this->ks(),
+    return GrSpecularLightingEffect::Make(context, std::move(proxy), this->light(),
+                                          scale, matrix, this->ks(),
                                           this->shininess(), boundaryMode, srcBounds);
 }
 #endif
@@ -1691,29 +1703,30 @@ private:
 
 ///////////////////////////////////////////////////////////////////////////////
 
-static GrTextureDomain create_domain(GrTexture* texture, const SkIRect* srcBounds,
+static GrTextureDomain create_domain(GrTextureProxy* proxy, const SkIRect* srcBounds,
                                      GrTextureDomain::Mode mode) {
     if (srcBounds) {
         SkRect texelDomain = GrTextureDomain::MakeTexelDomainForMode(*srcBounds, mode);
-        return GrTextureDomain(texture, texelDomain, mode);
+        return GrTextureDomain(proxy, texelDomain, mode);
     } else {
         return GrTextureDomain::IgnoredDomain();
     }
 }
 
-GrLightingEffect::GrLightingEffect(GrTexture* texture,
+GrLightingEffect::GrLightingEffect(GrContext* context,
+                                   sk_sp<GrTextureProxy> proxy,
                                    const SkImageFilterLight* light,
                                    SkScalar surfaceScale,
                                    const SkMatrix& matrix,
                                    BoundaryMode boundaryMode,
                                    const SkIRect* srcBounds)
         // Perhaps this could advertise the opaque or modulating optimizations?
-        : INHERITED(texture, nullptr, SkMatrix::I(), kNone_OptimizationFlags)
+        : INHERITED(context, kNone_OptimizationFlags, proxy, nullptr, SkMatrix::I())
         , fLight(light)
         , fSurfaceScale(surfaceScale)
         , fFilterMatrix(matrix)
         , fBoundaryMode(boundaryMode)
-        , fDomain(create_domain(texture, srcBounds, GrTextureDomain::kDecal_Mode)) {
+        , fDomain(create_domain(proxy.get(), srcBounds, GrTextureDomain::kDecal_Mode)) {
     fLight->ref();
     if (light->requiresFragmentPosition()) {
         this->setWillReadFragmentPosition();
@@ -1733,14 +1746,16 @@ bool GrLightingEffect::onIsEqual(const GrFragmentProcessor& sBase) const {
 
 ///////////////////////////////////////////////////////////////////////////////
 
-GrDiffuseLightingEffect::GrDiffuseLightingEffect(GrTexture* texture,
+GrDiffuseLightingEffect::GrDiffuseLightingEffect(GrContext* context,
+                                                 sk_sp<GrTextureProxy> proxy,
                                                  const SkImageFilterLight* light,
                                                  SkScalar surfaceScale,
                                                  const SkMatrix& matrix,
                                                  SkScalar kd,
                                                  BoundaryMode boundaryMode,
                                                  const SkIRect* srcBounds)
-    : INHERITED(texture, light, surfaceScale, matrix, boundaryMode, srcBounds), fKD(kd) {
+    : INHERITED(context, std::move(proxy), light, surfaceScale, matrix,
+                boundaryMode, srcBounds), fKD(kd) {
     this->initClassID<GrDiffuseLightingEffect>();
 }
 
@@ -1762,9 +1777,9 @@ GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrDiffuseLightingEffect);
 
 #if GR_TEST_UTILS
 sk_sp<GrFragmentProcessor> GrDiffuseLightingEffect::TestCreate(GrProcessorTestData* d) {
-    int texIdx = d->fRandom->nextBool() ? GrProcessorUnitTest::kSkiaPMTextureIdx :
-                                          GrProcessorUnitTest::kAlphaTextureIdx;
-    GrTexture* tex = d->fTextures[texIdx];
+    int texIdx = d->fRandom->nextBool() ? GrProcessorUnitTest::kSkiaPMTextureIdx
+                                        : GrProcessorUnitTest::kAlphaTextureIdx;
+    sk_sp<GrTextureProxy> proxy = d->textureProxy(texIdx);
     SkScalar surfaceScale = d->fRandom->nextSScalar1();
     SkScalar kd = d->fRandom->nextUScalar1();
     sk_sp<SkImageFilterLight> light(create_random_light(d->fRandom));
@@ -1772,13 +1787,14 @@ sk_sp<GrFragmentProcessor> GrDiffuseLightingEffect::TestCreate(GrProcessorTestDa
     for (int i = 0; i < 9; i++) {
         matrix[i] = d->fRandom->nextUScalar1();
     }
-    SkIRect srcBounds = SkIRect::MakeXYWH(d->fRandom->nextRangeU(0, tex->width()),
-                                          d->fRandom->nextRangeU(0, tex->height()),
-                                          d->fRandom->nextRangeU(0, tex->width()),
-                                          d->fRandom->nextRangeU(0, tex->height()));
+    SkIRect srcBounds = SkIRect::MakeXYWH(d->fRandom->nextRangeU(0, proxy->width()),
+                                          d->fRandom->nextRangeU(0, proxy->height()),
+                                          d->fRandom->nextRangeU(0, proxy->width()),
+                                          d->fRandom->nextRangeU(0, proxy->height()));
     BoundaryMode mode = static_cast<BoundaryMode>(d->fRandom->nextU() % kBoundaryModeCount);
-    return GrDiffuseLightingEffect::Make(tex, light.get(), surfaceScale, matrix, kd, mode,
-                                         &srcBounds);
+    return GrDiffuseLightingEffect::Make(d->context(),
+                                         std::move(proxy), light.get(), surfaceScale,
+                                         matrix, kd, mode, &srcBounds);
 }
 #endif
 
@@ -1948,7 +1964,8 @@ void GrGLDiffuseLightingEffect::onSetData(const GrGLSLProgramDataManager& pdman,
 
 ///////////////////////////////////////////////////////////////////////////////
 
-GrSpecularLightingEffect::GrSpecularLightingEffect(GrTexture* texture,
+GrSpecularLightingEffect::GrSpecularLightingEffect(GrContext* context,
+                                                   sk_sp<GrTextureProxy> proxy,
                                                    const SkImageFilterLight* light,
                                                    SkScalar surfaceScale,
                                                    const SkMatrix& matrix,
@@ -1956,7 +1973,7 @@ GrSpecularLightingEffect::GrSpecularLightingEffect(GrTexture* texture,
                                                    SkScalar shininess,
                                                    BoundaryMode boundaryMode,
                                                    const SkIRect* srcBounds)
-    : INHERITED(texture, light, surfaceScale, matrix, boundaryMode, srcBounds)
+    : INHERITED(context, std::move(proxy), light, surfaceScale, matrix, boundaryMode, srcBounds)
     , fKS(ks)
     , fShininess(shininess) {
     this->initClassID<GrSpecularLightingEffect>();
@@ -1982,9 +1999,9 @@ GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrSpecularLightingEffect);
 
 #if GR_TEST_UTILS
 sk_sp<GrFragmentProcessor> GrSpecularLightingEffect::TestCreate(GrProcessorTestData* d) {
-    int texIdx = d->fRandom->nextBool() ? GrProcessorUnitTest::kSkiaPMTextureIdx :
-                                          GrProcessorUnitTest::kAlphaTextureIdx;
-    GrTexture* tex = d->fTextures[texIdx];
+    int texIdx = d->fRandom->nextBool() ? GrProcessorUnitTest::kSkiaPMTextureIdx
+                                        : GrProcessorUnitTest::kAlphaTextureIdx;
+    sk_sp<GrTextureProxy> proxy = d->textureProxy(texIdx);
     SkScalar surfaceScale = d->fRandom->nextSScalar1();
     SkScalar ks = d->fRandom->nextUScalar1();
     SkScalar shininess = d->fRandom->nextUScalar1();
@@ -1994,11 +2011,11 @@ sk_sp<GrFragmentProcessor> GrSpecularLightingEffect::TestCreate(GrProcessorTestD
         matrix[i] = d->fRandom->nextUScalar1();
     }
     BoundaryMode mode = static_cast<BoundaryMode>(d->fRandom->nextU() % kBoundaryModeCount);
-    SkIRect srcBounds = SkIRect::MakeXYWH(d->fRandom->nextRangeU(0, tex->width()),
-                                          d->fRandom->nextRangeU(0, tex->height()),
-                                          d->fRandom->nextRangeU(0, tex->width()),
-                                          d->fRandom->nextRangeU(0, tex->height()));
-    return GrSpecularLightingEffect::Make(d->fTextures[GrProcessorUnitTest::kAlphaTextureIdx],
+    SkIRect srcBounds = SkIRect::MakeXYWH(d->fRandom->nextRangeU(0, proxy->width()),
+                                          d->fRandom->nextRangeU(0, proxy->height()),
+                                          d->fRandom->nextRangeU(0, proxy->width()),
+                                          d->fRandom->nextRangeU(0, proxy->height()));
+    return GrSpecularLightingEffect::Make(d->context(), std::move(proxy),
                                           light.get(), surfaceScale, matrix, ks, shininess, mode,
                                           &srcBounds);
 }
diff --git a/src/effects/SkMagnifierImageFilter.cpp b/src/effects/SkMagnifierImageFilter.cpp
index 93a67104f4..540ed309bc 100644
--- a/src/effects/SkMagnifierImageFilter.cpp
+++ b/src/effects/SkMagnifierImageFilter.cpp
@@ -18,6 +18,7 @@
 #if SK_SUPPORT_GPU
 #include "GrContext.h"
 #include "GrInvariantOutput.h"
+#include "effects/GrProxyMove.h"
 #include "effects/GrSingleTextureEffect.h"
 #include "glsl/GrGLSLColorSpaceXformHelper.h"
 #include "glsl/GrGLSLFragmentProcessor.h"
@@ -25,20 +26,55 @@
 #include "glsl/GrGLSLProgramDataManager.h"
 #include "glsl/GrGLSLUniformHandler.h"
 #include "../private/GrGLSL.h"
+#endif
+
+sk_sp<SkImageFilter> SkMagnifierImageFilter::Make(const SkRect& srcRect, SkScalar inset,
+                                                  sk_sp<SkImageFilter> input,
+                                                  const CropRect* cropRect) {
+    if (!SkScalarIsFinite(inset) || !SkIsValidRect(srcRect)) {
+        return nullptr;
+    }
+    if (inset < 0) {
+        return nullptr;
+    }
+    // Negative numbers in src rect are not supported
+    if (srcRect.fLeft < 0 || srcRect.fTop < 0) {
+        return nullptr;
+    }
+    return sk_sp<SkImageFilter>(new SkMagnifierImageFilter(srcRect, inset,
+                                                           std::move(input),
+                                                           cropRect));
+}
 
+#if SK_SUPPORT_GPU
 class GrMagnifierEffect : public GrSingleTextureEffect {
 public:
     static sk_sp<GrFragmentProcessor> Make(GrTexture* texture,
                                            sk_sp<GrColorSpaceXform> colorSpaceXform,
-                                           const SkRect& bounds,
-                                           float xOffset,
-                                           float yOffset,
+                                           const SkIRect& bounds,
+                                           const SkRect& srcRect,
                                            float xInvZoom,
                                            float yInvZoom,
                                            float xInvInset,
                                            float yInvInset) {
         return sk_sp<GrFragmentProcessor>(new GrMagnifierEffect(texture, std::move(colorSpaceXform),
-                                                                bounds, xOffset, yOffset,
+                                                                bounds, srcRect,
+                                                                xInvZoom, yInvZoom,
+                                                                xInvInset, yInvInset));
+    }
+    static sk_sp<GrFragmentProcessor> Make(GrContext* context,
+                                           sk_sp<GrTextureProxy> proxy,
+                                           sk_sp<GrColorSpaceXform> colorSpaceXform,
+                                           const SkIRect& bounds,
+                                           const SkRect& srcRect,
+                                           float xInvZoom,
+                                           float yInvZoom,
+                                           float xInvInset,
+                                           float yInvInset) {
+        return sk_sp<GrFragmentProcessor>(new GrMagnifierEffect(context,
+                                                                std::move(proxy),
+                                                                std::move(colorSpaceXform),
+                                                                bounds, srcRect,
                                                                 xInvZoom, yInvZoom,
                                                                 xInvInset, yInvInset));
     }
@@ -47,10 +83,8 @@ public:
 
     const char* name() const override { return "Magnifier"; }
 
-    const SkRect& bounds() const { return fBounds; }    // Bounds of source image.
-    // Offset to apply to zoomed pixels, (srcRect position / texture size).
-    float xOffset() const { return fXOffset; }
-    float yOffset() const { return fYOffset; }
+    const SkIRect& bounds() const { return fBounds; }    // Bounds of source image.
+    const SkRect& srcRect() const { return fSrcRect; }
 
     // Scale to apply to zoomed pixels (srcRect size / bounds size).
     float xInvZoom() const { return fXInvZoom; }
@@ -63,9 +97,8 @@ public:
 private:
     GrMagnifierEffect(GrTexture* texture,
                       sk_sp<GrColorSpaceXform> colorSpaceXform,
-                      const SkRect& bounds,
-                      float xOffset,
-                      float yOffset,
+                      const SkIRect& bounds,
+                      const SkRect& srcRect,
                       float xInvZoom,
                       float yInvZoom,
                       float xInvInset,
@@ -73,8 +106,30 @@ private:
             : INHERITED(texture, std::move(colorSpaceXform), SkMatrix::I(),
                         ModulationFlags(texture->config()))
             , fBounds(bounds)
-            , fXOffset(xOffset)
-            , fYOffset(yOffset)
+            , fSrcRect(srcRect)
+            , fXInvZoom(xInvZoom)
+            , fYInvZoom(yInvZoom)
+            , fXInvInset(xInvInset)
+            , fYInvInset(yInvInset) {
+        this->initClassID<GrMagnifierEffect>();
+    }
+
+    GrMagnifierEffect(GrContext* context,
+                      sk_sp<GrTextureProxy> proxy,
+                      sk_sp<GrColorSpaceXform> colorSpaceXform,
+                      const SkIRect& bounds,
+                      const SkRect& srcRect,
+                      float xInvZoom,
+                      float yInvZoom,
+                      float xInvInset,
+                      float yInvInset)
+            : INHERITED{context,
+                        ModulationFlags(proxy->config()),
+                        GR_PROXY_MOVE(proxy),
+                        std::move(colorSpaceXform),
+                        SkMatrix::I()} // TODO: no GrSamplerParams::kBilerp_FilterMode?
+            , fBounds(bounds)
+            , fSrcRect(srcRect)
             , fXInvZoom(xInvZoom)
             , fYInvZoom(yInvZoom)
             , fXInvInset(xInvInset)
@@ -92,9 +147,8 @@ private:
 
     GR_DECLARE_FRAGMENT_PROCESSOR_TEST;
 
-    SkRect fBounds;
-    float fXOffset;
-    float fYOffset;
+    SkIRect fBounds;
+    SkRect  fSrcRect;
     float fXInvZoom;
     float fYInvZoom;
     float fXInvInset;
@@ -187,11 +241,38 @@ void GrGLMagnifierEffect::emitCode(EmitArgs& args) {
 void GrGLMagnifierEffect::onSetData(const GrGLSLProgramDataManager& pdman,
                                     const GrProcessor& effect) {
     const GrMagnifierEffect& zoom = effect.cast<GrMagnifierEffect>();
-    pdman.set2f(fOffsetVar, zoom.xOffset(), zoom.yOffset());
+
+    GrTexture* tex = zoom.textureSampler(0).texture();
+    SkASSERT(tex);
+
+    SkScalar invW = 1.0f / tex->width();
+    SkScalar invH = 1.0f / tex->height();
+
+    {
+        SkScalar y = zoom.srcRect().y() * invH;
+        if (tex->origin() != kTopLeft_GrSurfaceOrigin) {
+            y = 1.0f - (zoom.srcRect().height() / zoom.bounds().height()) - y;
+        }
+
+        pdman.set2f(fOffsetVar, zoom.srcRect().x() * invW, y);
+    }
+
     pdman.set2f(fInvZoomVar, zoom.xInvZoom(), zoom.yInvZoom());
     pdman.set2f(fInvInsetVar, zoom.xInvInset(), zoom.yInvInset());
-    pdman.set4f(fBoundsVar, zoom.bounds().x(), zoom.bounds().y(),
-                            zoom.bounds().width(), zoom.bounds().height());
+
+    {
+        SkScalar y = zoom.bounds().y() * invH;
+        if (tex->origin() != kTopLeft_GrSurfaceOrigin) {
+            y = 1.0f - zoom.bounds().height() * invH;
+        }
+
+        pdman.set4f(fBoundsVar,
+                    zoom.bounds().x() * invW,
+                    y,
+                    SkIntToScalar(tex->width()) / zoom.bounds().width(),
+                    SkIntToScalar(tex->height()) / zoom.bounds().height());
+    }
+
     if (SkToBool(zoom.colorSpaceXform())) {
         pdman.setSkMatrix44(fColorSpaceXformVar, zoom.colorSpaceXform()->srcToDst());
     }
@@ -212,27 +293,28 @@ GR_DEFINE_FRAGMENT_PROCESSOR_TEST(GrMagnifierEffect);
 
 #if GR_TEST_UTILS
 sk_sp<GrFragmentProcessor> GrMagnifierEffect::TestCreate(GrProcessorTestData* d) {
-    GrTexture* texture = d->fTextures[0];
+    sk_sp<GrTextureProxy> proxy = d->textureProxy(0);
     const int kMaxWidth = 200;
     const int kMaxHeight = 200;
-    const int kMaxInset = 20;
+    const SkScalar kMaxInset = 20.0f;
     uint32_t width = d->fRandom->nextULessThan(kMaxWidth);
     uint32_t height = d->fRandom->nextULessThan(kMaxHeight);
-    uint32_t x = d->fRandom->nextULessThan(kMaxWidth - width);
-    uint32_t y = d->fRandom->nextULessThan(kMaxHeight - height);
-    uint32_t inset = d->fRandom->nextULessThan(kMaxInset);
-    auto colorSpaceXform = GrTest::TestColorXform(d->fRandom);
+    SkScalar inset = d->fRandom->nextRangeScalar(1.0f, kMaxInset);
+    sk_sp<GrColorSpaceXform> colorSpaceXform = GrTest::TestColorXform(d->fRandom);
+
+    SkIRect bounds = SkIRect::MakeWH(SkIntToScalar(kMaxWidth), SkIntToScalar(kMaxHeight));
+    SkRect srcRect = SkRect::MakeWH(SkIntToScalar(width), SkIntToScalar(height));
 
     sk_sp<GrFragmentProcessor> effect(GrMagnifierEffect::Make(
-        texture,
+        d->context(),
+        std::move(proxy),
         std::move(colorSpaceXform),
-        SkRect::MakeWH(SkIntToScalar(kMaxWidth), SkIntToScalar(kMaxHeight)),
-        (float) width / texture->width(),
-        (float) height / texture->height(),
-        texture->width() / (float) x,
-        texture->height() / (float) y,
-        (float) inset / texture->width(),
-        (float) inset / texture->height()));
+        bounds,
+        srcRect,
+        srcRect.width() / bounds.width(),
+        srcRect.height() / bounds.height(),
+        bounds.width() / inset,
+        bounds.height() / inset));
     SkASSERT(effect);
     return effect;
 }
@@ -243,8 +325,7 @@ sk_sp<GrFragmentProcessor> GrMagnifierEffect::TestCreate(GrProcessorTestData* d)
 bool GrMagnifierEffect::onIsEqual(const GrFragmentProcessor& sBase) const {
     const GrMagnifierEffect& s = sBase.cast<GrMagnifierEffect>();
     return (this->fBounds == s.fBounds &&
-            this->fXOffset == s.fXOffset &&
-            this->fYOffset == s.fYOffset &&
+            this->fSrcRect == s.fSrcRect &&
             this->fXInvZoom == s.fXInvZoom &&
             this->fYInvZoom == s.fYInvZoom &&
             this->fXInvInset == s.fXInvInset &&
@@ -259,23 +340,6 @@ void GrMagnifierEffect::onComputeInvariantOutput(GrInvariantOutput* inout) const
 
 ////////////////////////////////////////////////////////////////////////////////
 
-sk_sp<SkImageFilter> SkMagnifierImageFilter::Make(const SkRect& srcRect, SkScalar inset,
-                                                  sk_sp<SkImageFilter> input,
-                                                  const CropRect* cropRect) {
-
-    if (!SkScalarIsFinite(inset) || !SkIsValidRect(srcRect)) {
-        return nullptr;
-    }
-    // Negative numbers in src rect are not supported
-    if (srcRect.fLeft < 0 || srcRect.fTop < 0) {
-        return nullptr;
-    }
-    return sk_sp<SkImageFilter>(new SkMagnifierImageFilter(srcRect, inset,
-                                                           std::move(input),
-                                                           cropRect));
-}
-
-
 SkMagnifierImageFilter::SkMagnifierImageFilter(const SkRect& srcRect,
                                                SkScalar inset,
                                                sk_sp<SkImageFilter> input,
@@ -283,7 +347,7 @@ SkMagnifierImageFilter::SkMagnifierImageFilter(const SkRect& srcRect,
     : INHERITED(&input, 1, cropRect)
     , fSrcRect(srcRect)
     , fInset(inset) {
-    SkASSERT(srcRect.x() >= 0 && srcRect.y() >= 0 && inset >= 0);
+    SkASSERT(srcRect.left() >= 0 && srcRect.top() >= 0 && inset >= 0);
 }
 
 sk_sp<SkFlattenable> SkMagnifierImageFilter::CreateProc(SkReadBuffer& buffer) {
@@ -326,35 +390,22 @@ sk_sp<SkSpecialImage> SkMagnifierImageFilter::onFilterImage(SkSpecialImage* sour
     if (source->isTextureBacked()) {
         GrContext* context = source->getContext();
 
-        sk_sp<GrTexture> inputTexture(input->asTextureRef(context));
-        SkASSERT(inputTexture);
+        sk_sp<GrTextureProxy> inputProxy(input->asTextureProxyRef(context));
+        SkASSERT(inputProxy);
 
         offset->fX = bounds.left();
         offset->fY = bounds.top();
         bounds.offset(-inputOffset);
 
-        SkScalar yOffset = inputTexture->origin() == kTopLeft_GrSurfaceOrigin
-            ? fSrcRect.y()
-            : inputTexture->height() -
-                      fSrcRect.height() * inputTexture->height() / bounds.height() - fSrcRect.y();
-        int boundsY = inputTexture->origin() == kTopLeft_GrSurfaceOrigin
-            ? bounds.y()
-            : inputTexture->height() - bounds.height();
-        SkRect effectBounds = SkRect::MakeXYWH(
-            SkIntToScalar(bounds.x()) / inputTexture->width(),
-            SkIntToScalar(boundsY) / inputTexture->height(),
-            SkIntToScalar(inputTexture->width()) / bounds.width(),
-            SkIntToScalar(inputTexture->height()) / bounds.height());
-
         SkColorSpace* dstColorSpace = ctx.outputProperties().colorSpace();
         sk_sp<GrColorSpaceXform> colorSpaceXform = GrColorSpaceXform::Make(input->getColorSpace(),
                                                                            dstColorSpace);
         sk_sp<GrFragmentProcessor> fp(GrMagnifierEffect::Make(
-                                                        inputTexture.get(),
+                                                        context,
+                                                        std::move(inputProxy),
                                                         std::move(colorSpaceXform),
-                                                        effectBounds,
-                                                        fSrcRect.x() / inputTexture->width(),
-                                                        yOffset / inputTexture->height(),
+                                                        bounds,
+                                                        fSrcRect,
                                                         invXZoom,
                                                         invYZoom,
                                                         bounds.width() * invInset,
diff --git a/src/effects/SkMatrixConvolutionImageFilter.cpp b/src/effects/SkMatrixConvolutionImageFilter.cpp
index 8d6dbfc2b7..cec1a7d4f4 100644
--- a/src/effects/SkMatrixConvolutionImageFilter.cpp
+++ b/src/effects/SkMatrixConvolutionImageFilter.cpp
@@ -311,14 +311,15 @@ sk_sp<SkSpecialImage> SkMatrixConvolutionImageFilter::onFilterImage(SkSpecialIma
         // fall-back, which saves us from having to do the xform during the filter itself.
         input = ImageToColorSpace(input.get(), ctx.outputProperties());
 
-        sk_sp<GrTexture> inputTexture(input->asTextureRef(context));
-        SkASSERT(inputTexture);
+        sk_sp<GrTextureProxy> inputProxy(input->asTextureProxyRef(context));
+        SkASSERT(inputProxy);
 
         offset->fX = bounds.left();
         offset->fY = bounds.top();
         bounds.offset(-inputOffset);
 
-        sk_sp<GrFragmentProcessor> fp(GrMatrixConvolutionEffect::Make(inputTexture.get(),
+        sk_sp<GrFragmentProcessor> fp(GrMatrixConvolutionEffect::Make(context,
+                                                                      std::move(inputProxy),
                                                                       bounds,
                                                                       fKernelSize,
                                                                       fKernel,
diff --git a/src/effects/SkMorphologyImageFilter.cpp b/src/effects/SkMorphologyImageFilter.cpp
index 2c813e283a..e6a477f36b 100644
--- a/src/effects/SkMorphologyImageFilter.cpp
+++ b/src/effects/SkMorphologyImageFilter.cpp
@@ -486,7 +486,7 @@ static sk_sp<SkSpecialImage> apply_morphology(
                                           GrMorphologyEffect::MorphologyType morphType,
                                           SkISize radius,
                                           const SkImageFilter::OutputProperties& outputProperties) {
-    sk_sp<GrTextureProxy> srcTexture(input->asTextureProxy(context));
+    sk_sp<GrTextureProxy> srcTexture(input->asTextureProxyRef(context));
     SkASSERT(srcTexture);
     sk_sp<SkColorSpace> colorSpace = sk_ref_sp(outputProperties.colorSpace());
     GrPixelConfig config = GrRenderableConfigForColorSpace(colorSpace.get());
diff --git a/src/effects/SkXfermodeImageFilter.cpp b/src/effects/SkXfermodeImageFilter.cpp
index 5f44919914..c9e5a8a601 100644
--- a/src/effects/SkXfermodeImageFilter.cpp
+++ b/src/effects/SkXfermodeImageFilter.cpp
@@ -235,26 +235,26 @@ sk_sp<SkSpecialImage> SkXfermodeImageFilter_Base::filterImageGPU(
 
     GrContext* context = source->getContext();
 
-    sk_sp<GrTexture> backgroundTex, foregroundTex;
-    
+    sk_sp<GrTextureProxy> backgroundProxy, foregroundProxy;
+
     if (background) {
-        backgroundTex = background->asTextureRef(context);
+        backgroundProxy = background->asTextureProxyRef(context);
     }
 
     if (foreground) {
-        foregroundTex = foreground->asTextureRef(context);
+        foregroundProxy = foreground->asTextureProxyRef(context);
     }
 
     GrPaint paint;
     sk_sp<GrFragmentProcessor> bgFP;
 
-    if (backgroundTex) {
-        SkMatrix backgroundMatrix = SkMatrix::MakeTrans(-SkIntToScalar(backgroundOffset.fX),
-                                                        -SkIntToScalar(backgroundOffset.fY));
+    if (backgroundProxy) {
+        SkMatrix bgMatrix = SkMatrix::MakeTrans(-SkIntToScalar(backgroundOffset.fX),
+                                                -SkIntToScalar(backgroundOffset.fY));
         sk_sp<GrColorSpaceXform> bgXform = GrColorSpaceXform::Make(background->getColorSpace(),
                                                                    outputProperties.colorSpace());
         bgFP = GrTextureDomainEffect::Make(
-                            backgroundTex.get(), std::move(bgXform), backgroundMatrix,
+                            context, std::move(backgroundProxy), std::move(bgXform), bgMatrix,
                             GrTextureDomain::MakeTexelDomain(background->subset()),
                             GrTextureDomain::kDecal_Mode,
                             GrSamplerParams::kNone_FilterMode);
@@ -263,15 +263,15 @@ sk_sp<SkSpecialImage> SkXfermodeImageFilter_Base::filterImageGPU(
                                            GrConstColorProcessor::kIgnore_InputMode);
     }
 
-    if (foregroundTex) {
-        SkMatrix foregroundMatrix = SkMatrix::MakeTrans(-SkIntToScalar(foregroundOffset.fX),
-                                                        -SkIntToScalar(foregroundOffset.fY));
+    if (foregroundProxy) {
+        SkMatrix fgMatrix = SkMatrix::MakeTrans(-SkIntToScalar(foregroundOffset.fX),
+                                                -SkIntToScalar(foregroundOffset.fY));
         sk_sp<GrColorSpaceXform> fgXform = GrColorSpaceXform::Make(foreground->getColorSpace(),
                                                                    outputProperties.colorSpace());
         sk_sp<GrFragmentProcessor> foregroundFP;
 
         foregroundFP = GrTextureDomainEffect::Make(
-                            foregroundTex.get(), std::move(fgXform), foregroundMatrix,
+                            context, std::move(foregroundProxy), std::move(fgXform), fgMatrix,
                             GrTextureDomain::MakeTexelDomain(foreground->subset()),
                             GrTextureDomain::kDecal_Mode,
                             GrSamplerParams::kNone_FilterMode);
diff --git a/src/gpu/SkGpuDevice.cpp b/src/gpu/SkGpuDevice.cpp
index f30057d315..e9d27be0bf 100644
--- a/src/gpu/SkGpuDevice.cpp
+++ b/src/gpu/SkGpuDevice.cpp
@@ -1178,25 +1178,29 @@ void SkGpuDevice::drawSpecial(const SkDraw& draw,
     }
 
     SkASSERT(result->isTextureBacked());
-    sk_sp<GrTexture> texture = result->asTextureRef(fContext.get());
-    if (!texture) {
+    sk_sp<GrTextureProxy> proxy = result->asTextureProxyRef(fContext.get());
+    if (!proxy) {
         return;
     }
 
+    const GrPixelConfig config = proxy->config();
+
     SkPaint tmpUnfiltered(paint);
     tmpUnfiltered.setImageFilter(nullptr);
 
     sk_sp<GrColorSpaceXform> colorSpaceXform =
         GrColorSpaceXform::Make(result->getColorSpace(), fRenderTargetContext->getColorSpace());
-    GrPaint grPaint;
-    sk_sp<GrFragmentProcessor> fp(GrSimpleTextureEffect::Make(texture.get(),
+    sk_sp<GrFragmentProcessor> fp(GrSimpleTextureEffect::Make(fContext.get(),
+                                                              std::move(proxy),
                                                               std::move(colorSpaceXform),
                                                               SkMatrix::I()));
-    if (GrPixelConfigIsAlphaOnly(texture->config())) {
+    if (GrPixelConfigIsAlphaOnly(config)) {
         fp = GrFragmentProcessor::MakeInputPremulAndMulByOutput(std::move(fp));
     } else {
         fp = GrFragmentProcessor::MulOutputByInputAlpha(std::move(fp));
     }
+
+    GrPaint grPaint;
     if (!SkPaintToGrPaintReplaceShader(this->context(), fRenderTargetContext.get(), tmpUnfiltered,
                                        std::move(fp), &grPaint)) {
         return;
diff --git a/src/image/SkImage.cpp b/src/image/SkImage.cpp
index 67c96d7ed2..e798935710 100644
--- a/src/image/SkImage.cpp
+++ b/src/image/SkImage.cpp
@@ -291,9 +291,7 @@ sk_sp<SkImage> SkImage::makeWithFilter(const SkImageFilter* filter, const SkIRec
     SkImageFilter::OutputProperties outputProperties(colorSpace);
     SkImageFilter::Context context(SkMatrix::I(), clipBounds, cache.get(), outputProperties);
 
-    sk_sp<SkSpecialImage> result =
-        filter->filterImage(srcSpecialImage.get(), context, offset);
-
+    sk_sp<SkSpecialImage> result = filter->filterImage(srcSpecialImage.get(), context, offset);
     if (!result) {
         return nullptr;
     }
@@ -302,11 +300,13 @@ sk_sp<SkImage> SkImage::makeWithFilter(const SkImageFilter* filter, const SkIRec
 #if SK_SUPPORT_GPU
     if (result->isTextureBacked()) {
         GrContext* context = result->getContext();
-        sk_sp<GrTexture> texture = result->asTextureRef(context);
-        if (!texture) {
+        sk_sp<GrTextureProxy> proxy = result->asTextureProxyRef(context);
+        if (!proxy) {
             return nullptr;
         }
-        fullSize = SkIRect::MakeWH(texture->width(), texture->height());
+        // MDB TODO: This is okay for now but will need to updated when we have deferred
+        // SkImage_Gpu objects
+        fullSize = SkIRect::MakeWH(proxy->width(), proxy->height());
     }
 #endif
     *outSubset = SkIRect::MakeWH(result->width(), result->height());