Swap over to using SkImageFilter::filterImage instead of filterImageDeprecated

src/core/SkSpecialImage.cpp

 /*
  * Copyright 2016 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file
  */
 
 #include "SkCanvas.h"
 #include "SkImage_Base.h"
 #include "SkSpecialImage.h"
 #include "SkSpecialSurface.h"
 
 ///////////////////////////////////////////////////////////////////////////////
 class SkSpecialImage_Base : public SkSpecialImage {
 public:
     SkSpecialImage_Base(SkImageFilter::Proxy* proxy, const SkIRect& subset, uint32_t uniqueID)
         : INHERITED(proxy, subset, uniqueID) {
     }
     virtual ~SkSpecialImage_Base() { }
 
     virtual void onDraw(SkCanvas*, SkScalar x, SkScalar y, const SkPaint*) const = 0;
 
     virtual bool onPeekPixels(SkPixmap*) const { return false; }
 
     virtual GrTexture* onPeekTexture() const { return nullptr; }
 
+    virtual bool onGetROPixels(SkBitmap*) const = 0;
+
     // Delete this entry point ASAP (see skbug.com/4965)
     virtual bool getBitmap(SkBitmap* result) const = 0;
 
     virtual SkSpecialSurface* onNewSurface(const SkImageInfo& info) const { return nullptr; }
 
 private:
     typedef SkSpecialImage INHERITED;
 };
 
 ///////////////////////////////////////////////////////////////////////////////
 static inline const SkSpecialImage_Base* as_SIB(const SkSpecialImage* image) {
     return static_cast<const SkSpecialImage_Base*>(image);
 }
 
 void SkSpecialImage::draw(SkCanvas* canvas, SkScalar x, SkScalar y, const SkPaint* paint) const {
     return as_SIB(this)->onDraw(canvas, x, y, paint);
 }
 
 bool SkSpecialImage::peekPixels(SkPixmap* pixmap) const {
     return as_SIB(this)->onPeekPixels(pixmap);
 }
 
 GrTexture* SkSpecialImage::peekTexture() const {
     return as_SIB(this)->onPeekTexture();
 }
 
+bool SkSpecialImage::getROPixels(SkBitmap* result) const {
+    return as_SIB(this)->onGetROPixels(result);
+}
+
 SkSpecialSurface* SkSpecialImage::newSurface(const SkImageInfo& info) const {
     return as_SIB(this)->onNewSurface(info);
 }
 
 #if SK_SUPPORT_GPU
 #include "SkGr.h"
 #include "SkGrPixelRef.h"
 #endif
 
 SkSpecialImage* SkSpecialImage::internal_fromBM(SkImageFilter::Proxy* proxy,
@@ skipping 65 matching lines @@
     bool onPeekPixels(SkPixmap* pixmap) const override {
         return fImage->peekPixels(pixmap);
     }
 
     GrTexture* onPeekTexture() const override { return as_IB(fImage.get())->peekTexture(); }
 
     bool getBitmap(SkBitmap* result) const override {
         return false;
     }
 
+    bool onGetROPixels(SkBitmap* result) const override {
+        return false;
+    }
+
     SkSpecialSurface* onNewSurface(const SkImageInfo& info) const override {
 #if SK_SUPPORT_GPU
         GrTexture* texture = as_IB(fImage.get())->peekTexture();
         if (texture) {
             GrSurfaceDesc desc = GrImageInfoToSurfaceDesc(info);
             desc.fFlags = kRenderTarget_GrSurfaceFlag;
 
             return SkSpecialSurface::NewRenderTarget(this->proxy(), texture->getContext(), desc);
         }
 #endif
         return SkSpecialSurface::NewRaster(this->proxy(), info, nullptr);
     }
 
 private:
     SkAutoTUnref<const SkImage> fImage;
 
     typedef SkSpecialImage_Base INHERITED;
 };
 
 #ifdef SK_DEBUG
 static bool rect_fits(const SkIRect& rect, int width, int height) {
+    if (0 == width && 0 == height) {
+        SkASSERT(0 == rect.fLeft && 0 == rect.fRight && 0 == rect.fTop && 0 == rect.fBottom);
+        return true;
+    }
+
     return rect.fLeft >= 0 && rect.fLeft < width && rect.fLeft < rect.fRight &&
            rect.fRight >= 0 && rect.fRight <= width &&
            rect.fTop >= 0 && rect.fTop < height && rect.fTop < rect.fBottom &&
            rect.fBottom >= 0 && rect.fBottom <= height;
 }
 #endif
 
 SkSpecialImage* SkSpecialImage::NewFromImage(const SkIRect& subset, const SkImage* image) {
     SkASSERT(rect_fits(subset, image->width(), image->height()));
     return new SkSpecialImage_Image(nullptr, subset, image);
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 #include "SkBitmap.h"
 #include "SkImageInfo.h"
 #include "SkPixelRef.h"
 
 class SkSpecialImage_Raster : public SkSpecialImage_Base {
 public:
     SkSpecialImage_Raster(SkImageFilter::Proxy* proxy, const SkIRect& subset, const SkBitmap& bm)
         : INHERITED(proxy, subset, bm.getGenerationID())
         , fBitmap(bm) {
-        if (bm.pixelRef()->isPreLocked()) {
+        if (bm.pixelRef() && bm.pixelRef()->isPreLocked()) {
             // we only preemptively lock if there is no chance of triggering something expensive
             // like a lazy decode or imagegenerator. PreLocked means it is flat pixels already.
             fBitmap.lockPixels();
         }
     }
 
     ~SkSpecialImage_Raster() override { }
 
     bool isOpaque() const override { return fBitmap.isOpaque(); }
 
@@ skipping 20 matching lines @@
             return true;
         }
         return false;
     }
 
     bool getBitmap(SkBitmap* result) const override {
         *result = fBitmap;
         return true;
     }
 
+    bool onGetROPixels(SkBitmap* result) const override {
+        *result = fBitmap;
+        return true;
+    }
+
     SkSpecialSurface* onNewSurface(const SkImageInfo& info) const override {
         return SkSpecialSurface::NewRaster(this->proxy(), info, nullptr);
     }
 
 private:
     SkBitmap fBitmap;
 
     typedef SkSpecialImage_Base INHERITED;
 };
 
@@ skipping 46 matching lines @@
                                                        this->width(), this->height(),
                                                        this->isOpaque());
         if (!result->setInfo(info)) {
             return false;
         }
 
         result->setPixelRef(new SkGrPixelRef(info, fTexture))->unref();
         return true;
     }
 
+    bool onGetROPixels(SkBitmap* result) const override {
+
+        const SkImageInfo info = SkImageInfo::MakeN32(this->width(), 
+                                                      this->height(),
+                                                      this->isOpaque() ? kOpaque_SkAlphaType
+                                                                       : kPremul_SkAlphaType);
+        if (!result->tryAllocPixels(info)) {
+            return false;
+        }
+
+        if (!fTexture->readPixels(0, 0, result->width(), result->height(), kSkia8888_GrPixelConfig,
+                                  result->getPixels(), result->rowBytes())) {
+            return false;
+        }
+
+        result->pixelRef()->setImmutable();
+        return true;
+    }
+
     SkSpecialSurface* onNewSurface(const SkImageInfo& info) const override {
         GrSurfaceDesc desc = GrImageInfoToSurfaceDesc(info);
         desc.fFlags = kRenderTarget_GrSurfaceFlag;
 
         return SkSpecialSurface::NewRenderTarget(this->proxy(), fTexture->getContext(), desc);
     }
 
 private:
     SkAutoTUnref<GrTexture> fTexture;
     const SkAlphaType       fAlphaType;
@@ skipping 14 matching lines @@
 
 SkSpecialImage* SkSpecialImage::NewFromGpu(SkImageFilter::Proxy* proxy,
                                            const SkIRect& subset,
                                            uint32_t uniqueID,
                                            GrTexture* tex,
                                            SkAlphaType at) {
     return nullptr;
 }
 
 #endif