From 6f01104b1d86b861b366b3511c8f2567eca4a9f3 Mon Sep 17 00:00:00 2001
From: robertphillips <robertphillips@google.com>
Date: Thu, 7 Apr 2016 08:10:45 -0700
Subject: [PATCH] Revert conversion of SkColorFilterImageFilter to new API

BUG=598028

GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1864263002

Review URL: https://codereview.chromium.org/1864263002
---
 include/effects/SkColorFilterImageFilter.h |  4 +-
 src/effects/SkColorFilterImageFilter.cpp   | 62 ++++++++++------------
 2 files changed, 29 insertions(+), 37 deletions(-)

diff --git a/include/effects/SkColorFilterImageFilter.h b/include/effects/SkColorFilterImageFilter.h
index 5ed051c0de..2aa04d1644 100644
--- a/include/effects/SkColorFilterImageFilter.h
+++ b/include/effects/SkColorFilterImageFilter.h
@@ -33,8 +33,8 @@ public:
 
 protected:
     void flatten(SkWriteBuffer&) const override;
-    sk_sp<SkSpecialImage> onFilterImage(SkSpecialImage* source, const Context&,
-                                        SkIPoint* offset) const override;
+    bool onFilterImageDeprecated(Proxy*, const SkBitmap& src, const Context&, SkBitmap* result,
+                                 SkIPoint* loc) const override;
     bool onIsColorFilterNode(SkColorFilter**) const override;
     bool affectsTransparentBlack() const override;
 
diff --git a/src/effects/SkColorFilterImageFilter.cpp b/src/effects/SkColorFilterImageFilter.cpp
index 8d412cc2f5..63dded6a18 100644
--- a/src/effects/SkColorFilterImageFilter.cpp
+++ b/src/effects/SkColorFilterImageFilter.cpp
@@ -9,9 +9,8 @@
 
 #include "SkCanvas.h"
 #include "SkColorFilter.h"
+#include "SkDevice.h"
 #include "SkReadBuffer.h"
-#include "SkSpecialImage.h"
-#include "SkSpecialSurface.h"
 #include "SkWriteBuffer.h"
 
 sk_sp<SkImageFilter> SkColorFilterImageFilter::Make(sk_sp<SkColorFilter> cf,
@@ -57,62 +56,55 @@ void SkColorFilterImageFilter::flatten(SkWriteBuffer& buffer) const {
     buffer.writeFlattenable(fColorFilter.get());
 }
 
-sk_sp<SkSpecialImage> SkColorFilterImageFilter::onFilterImage(SkSpecialImage* source,
-                                                              const Context& ctx,
-                                                              SkIPoint* offset) const {
-    SkIPoint inputOffset = SkIPoint::Make(0, 0);
-    sk_sp<SkSpecialImage> input(this->filterInput(0, source, ctx, &inputOffset));
+bool SkColorFilterImageFilter::onFilterImageDeprecated(Proxy* proxy, const SkBitmap& source,
+                                                       const Context& ctx,
+                                                       SkBitmap* result,
+                                                       SkIPoint* offset) const {
+    SkBitmap src = source;
+    SkIPoint srcOffset = SkIPoint::Make(0, 0);
+    bool inputResult = this->filterInputDeprecated(0, proxy, source, ctx, &src, &srcOffset);
+
+    SkIRect srcBounds;
 
-    SkIRect inputBounds;
     if (fColorFilter->affectsTransparentBlack()) {
         // If the color filter affects transparent black, the bounds are the entire clip.
-        inputBounds = ctx.clipBounds();
-    } else if (!input) {
-        return nullptr;
+        srcBounds = ctx.clipBounds();
+    } else if (!inputResult) {
+        return false;
     } else {
-        inputBounds = SkIRect::MakeXYWH(inputOffset.x(), inputOffset.y(),
-                                        input->width(), input->height());
+        srcBounds = src.bounds();
+        srcBounds.offset(srcOffset);
     }
 
     SkIRect bounds;
-    if (!this->applyCropRect(ctx, inputBounds, &bounds)) {
-        return nullptr;
+    if (!this->applyCropRect(ctx, srcBounds, &bounds)) {
+        return false;
     }
 
-    SkImageInfo info = SkImageInfo::MakeN32(bounds.width(), bounds.height(), kPremul_SkAlphaType);
-    sk_sp<SkSpecialSurface> surf(source->makeSurface(info));
-    if (!surf) {
-        return nullptr;
+    SkAutoTUnref<SkBaseDevice> device(proxy->createDevice(bounds.width(), bounds.height()));
+    if (nullptr == device.get()) {
+        return false;
     }
-
-    SkCanvas* canvas = surf->getCanvas();
-    SkASSERT(canvas);
+    SkCanvas canvas(device.get());
 
     SkPaint paint;
-
     paint.setXfermodeMode(SkXfermode::kSrc_Mode);
     paint.setColorFilter(fColorFilter);
 
     // TODO: it may not be necessary to clear or drawPaint inside the input bounds
     // (see skbug.com/5075)
     if (fColorFilter->affectsTransparentBlack()) {
-        // The subsequent input->draw() call may not fill the entire canvas. For filters which
+        // The subsequent drawBitmap call may not fill the entire canvas. For filters which
         // affect transparent black, ensure that the filter is applied everywhere.
-        canvas->drawPaint(paint);
-    } else {
-        canvas->clear(0x0);
-    }
-
-    if (input) {
-        input->draw(canvas,
-                    SkIntToScalar(inputOffset.fX - bounds.fLeft),
-                    SkIntToScalar(inputOffset.fY - bounds.fTop),
-                    &paint);
+        canvas.drawPaint(paint);
     }
 
+    canvas.drawBitmap(src, SkIntToScalar(srcOffset.fX - bounds.fLeft),
+                           SkIntToScalar(srcOffset.fY - bounds.fTop), &paint);
+    *result = device.get()->accessBitmap(false);
     offset->fX = bounds.fLeft;
     offset->fY = bounds.fTop;
-    return surf->makeImageSnapshot();
+    return true;
 }
 
 bool SkColorFilterImageFilter::onIsColorFilterNode(SkColorFilter** filter) const {