Revert of Add image as a draw type that can be filtered

tests/SkImageTest.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBitmapDevice.h"
-#include "SkColor.h"
-#include "SkDrawFilter.h"
 #include "SkImagePriv.h"
 #include "Test.h"
 
 static const int gWidth = 20;
 static const int gHeight = 20;
 
 // Tests that SkNewImageFromBitmap obeys pixelref origin.
 DEF_TEST(SkImageFromBitmap_extractSubset, reporter) {
     SkAutoTUnref<SkImage> image;
     {
@@ skipping 21 matching lines @@
     uint32_t pixel = 0;
     SkImageInfo info = SkImageInfo::MakeN32Premul(1, 1);
     canvas.readPixels(info, &pixel, 4, 0, 0);
     REPORTER_ASSERT(reporter, pixel == SK_ColorGREEN);
     canvas.readPixels(info, &pixel, 4, gWidth - 6, gWidth - 6);
     REPORTER_ASSERT(reporter, pixel == SK_ColorGREEN);
 
     canvas.readPixels(info, &pixel, 4, gWidth - 5, gWidth - 5);
     REPORTER_ASSERT(reporter, pixel == SK_ColorTRANSPARENT);
 }
-
-namespace {
-class TestDrawFilterImage : public SkDrawFilter {
-public:
-    TestDrawFilterImage()
-            : fFilteredImage(0)
-            , fFilteredOthers(0)
-            , fPreventImages(true)
-            , fPreventOthers(true) {
-    }
-
-    bool filter(SkPaint*, Type type) SK_OVERRIDE {
-        if (type == SkDrawFilter::kImage_Type) {
-            if (fPreventImages) {
-                fFilteredImage++;
-                return false;
-            }
-            return true;
-        }
-
-        if (fPreventOthers) {
-            fFilteredOthers++;
-            return false;
-        }
-        return true;
-    }
-    int fFilteredImage;
-    int fFilteredOthers;
-    bool fPreventImages;
-    bool fPreventOthers;
-};
-}
-
-DEF_TEST(SkCanvas_test_draw_filter_image, reporter) {
-    SkBitmap bitmap;
-    bitmap.allocN32Pixels(1, 1);
-    bitmap.eraseColor(SK_ColorTRANSPARENT);
-    TestDrawFilterImage drawFilter;
-    SkCanvas canvas(bitmap);
-
-    SkBitmap imageBitmap;
-    imageBitmap.allocN32Pixels(1, 1);
-    imageBitmap.eraseColor(SK_ColorGREEN);
-    SkAutoTUnref<SkImage> image(SkNewImageFromBitmap(imageBitmap, true, NULL));
-    canvas.drawImage(image, 0, 0);
-
-    uint32_t pixel;
-    SkImageInfo info = SkImageInfo::MakeN32Premul(1, 1);
-    canvas.readPixels(info, &pixel, 4, 0, 0);
-    REPORTER_ASSERT(reporter, pixel == SK_ColorGREEN);
-
-    canvas.setDrawFilter(&drawFilter);
-    imageBitmap.eraseColor(SK_ColorRED);
-    image.reset(SkNewImageFromBitmap(imageBitmap, true, NULL));
-    canvas.drawImage(image, 0, 0);
-    canvas.readPixels(info, &pixel, 4, 0, 0);
-    REPORTER_ASSERT(reporter, pixel == SK_ColorGREEN);
-    REPORTER_ASSERT(reporter, drawFilter.fFilteredImage == 1);
-    REPORTER_ASSERT(reporter, drawFilter.fFilteredOthers == 0);
-
-    // Document a strange case: filtering everything but the images does not work as
-    // expected. Images go through, but no pixels appear. (This due to SkCanvas::drawImage() using
-    // SkCanvas::drawBitmap() instead of non-existing SkBaseDevice::drawImage()).
-    drawFilter.fFilteredImage = 0;
-    drawFilter.fPreventImages = false;
-
-    canvas.drawImage(image, 0, 0);
-    canvas.readPixels(info, &pixel, 4, 0, 0);
-    REPORTER_ASSERT(reporter, pixel == SK_ColorGREEN);
-    REPORTER_ASSERT(reporter, drawFilter.fFilteredImage == 0);
-    REPORTER_ASSERT(reporter, drawFilter.fFilteredOthers == 1);
-}
-
-namespace {
-/*
- *  Subclass of looper that just draws once with one pixel offset.
- */
-class OnceTestLooper : public SkDrawLooper {
-public:
-    OnceTestLooper() { }
-
-    SkDrawLooper::Context* createContext(SkCanvas*, void* storage) const SK_OVERRIDE {
-        return SkNEW_PLACEMENT(storage, OnceTestLooperContext());
-    }
-
-    size_t contextSize() const SK_OVERRIDE { return sizeof(OnceTestLooperContext); }
-
-#ifndef SK_IGNORE_TO_STRING
-    void toString(SkString* str) const SK_OVERRIDE {
-        str->append("OnceTestLooper:");
-    }
-#endif
-
-    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(OnceTestLooper);
-
-private:
-    class OnceTestLooperContext : public SkDrawLooper::Context {
-    public:
-        OnceTestLooperContext() : fCount(0) {}
-        virtual ~OnceTestLooperContext() {}
-
-        bool next(SkCanvas* canvas, SkPaint*) SK_OVERRIDE {
-            SkASSERT(fCount <= 1);
-            canvas->translate(0, 1);
-            return fCount++ < 1;
-        }
-    private:
-        unsigned fCount;
-    };
-};
-
-SkFlattenable* OnceTestLooper::CreateProc(SkReadBuffer&) { return SkNEW(OnceTestLooper); }
-}
-
-DEF_TEST(SkCanvas_test_draw_looper_image, reporter) {
-    // Test that drawImage loops with the looper the correct way. At the time of writing, this was
-    // tricky because drawImage was implemented with drawBitmap. The drawBitmap uses applies the
-    // looper.
-    SkBitmap bitmap;
-    bitmap.allocN32Pixels(10, 10);
-    bitmap.eraseColor(SK_ColorRED);
-    OnceTestLooper drawLooper;
-    SkCanvas canvas(bitmap);
-
-    SkBitmap imageBitmap;
-    imageBitmap.allocN32Pixels(1, 1);
-    imageBitmap.eraseColor(SK_ColorGREEN);
-    SkAutoTUnref<SkImage> image(SkNewImageFromBitmap(imageBitmap, true, NULL));
-    SkPaint p;
-    p.setLooper(&drawLooper);
-    canvas.drawImage(image, 0, 0, &p);
-
-    uint32_t pixel;
-    SkImageInfo info = SkImageInfo::MakeN32Premul(1, 1);
-    canvas.readPixels(info, &pixel, 4, 0, 1);
-    REPORTER_ASSERT(reporter, pixel == SK_ColorGREEN);
-    canvas.readPixels(info, &pixel, 4, 0, 0);
-    REPORTER_ASSERT(reporter, pixel == SK_ColorRED);
-    canvas.readPixels(info, &pixel, 4, 0, 2);
-    REPORTER_ASSERT(reporter, pixel == SK_ColorRED);
-}
-