add applyFilter() to SkImage

tests/ImageFilterTest.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBitmap.h"
 #include "SkBitmapDevice.h"
 #include "SkBlurImageFilter.h"
@@ skipping 382 matching lines @@
             break;
         }
     }
 }
 
 DEF_TEST(TestNegativeBlurSigma, reporter) {
     const SkImageInfo info = SkImageInfo::MakeN32Premul(100, 100);
     const SkSurfaceProps props(SkSurfaceProps::kLegacyFontHost_InitType);
 
     SkAutoTUnref<SkBaseDevice> device(SkBitmapDevice::Create(info, props));
-    SkImageFilter::Proxy proxy(device);
+    SkImageFilter::DeviceProxy proxy(device);
 
     test_negative_blur_sigma(&proxy, reporter);
 }
 
 DEF_TEST(ImageFilterDrawTiled, reporter) {
     // Check that all filters when drawn tiled (with subsequent clip rects) exactly
     // match the same filters drawn with a single full-canvas bitmap draw.
     // Tests pass by not asserting.
 
     SkAutoTUnref<SkColorFilter> cf(SkColorFilter::CreateModeFilter(SK_ColorRED, SkXfermode::kSrcIn_Mode));
@@ skipping 352 matching lines @@
     canvas.saveLayer(&bounds, &filterPaint);
     canvas.drawRect(rect, rectPaint);
     canvas.restore();
 }
 
 DEF_TEST(ImageFilterCropRect, reporter) {
     const SkImageInfo info = SkImageInfo::MakeN32Premul(100, 100);
     const SkSurfaceProps props(SkSurfaceProps::kLegacyFontHost_InitType);
 
     SkAutoTUnref<SkBaseDevice> device(SkBitmapDevice::Create(info, props));
-    SkImageFilter::Proxy proxy(device);
+    SkImageFilter::DeviceProxy proxy(device);
 
     test_crop_rects(&proxy, reporter);
 }
 
 DEF_TEST(ImageFilterMatrix, reporter) {
     SkBitmap temp;
     temp.allocN32Pixels(100, 100);
     SkCanvas canvas(temp);
     canvas.scale(SkIntToScalar(2), SkIntToScalar(2));
 
@@ skipping 93 matching lines @@
 
     SkAutoTUnref<SkImageFilter> imageFilter(SkPictureImageFilter::Create(picture.get()));
 
     SkBitmap result;
     SkIPoint offset;
     SkImageFilter::Context ctx(SkMatrix::I(), SkIRect::MakeXYWH(1, 1, 1, 1), nullptr);
     SkBitmap bitmap;
     bitmap.allocN32Pixels(2, 2);
     const SkSurfaceProps props(SkSurfaceProps::kLegacyFontHost_InitType);
     SkBitmapDevice device(bitmap, props);
-    SkImageFilter::Proxy proxy(&device);
+    SkImageFilter::DeviceProxy proxy(&device);
     REPORTER_ASSERT(reporter, !imageFilter->filterImage(&proxy, bitmap, ctx, &result, &offset));
 }
 
 DEF_TEST(ImageFilterEmptySaveLayer, reporter) {
     // Even when there's an empty saveLayer()/restore(), ensure that an image
     // filter or color filter which affects transparent black still draws.
 
     SkBitmap bitmap;
     bitmap.allocN32Pixels(10, 10);
     SkCanvas canvas(bitmap);
@@ skipping 218 matching lines @@
     SkCanvas canvas(temp);
     test_xfermode_cropped_input(&canvas, reporter);
 }
 
 DEF_TEST(ComposedImageFilterOffset, reporter) {
     SkBitmap bitmap;
     bitmap.allocN32Pixels(100, 100);
     bitmap.eraseARGB(0, 0, 0, 0);
     const SkSurfaceProps props(SkSurfaceProps::kLegacyFontHost_InitType);
     SkBitmapDevice device(bitmap, props);
-    SkImageFilter::Proxy proxy(&device);
+    SkImageFilter::DeviceProxy proxy(&device);
 
     SkImageFilter::CropRect cropRect(SkRect::MakeXYWH(1, 0, 20, 20));
     SkAutoTUnref<SkImageFilter> offsetFilter(SkOffsetImageFilter::Create(0, 0, nullptr, &cropRect));
     SkAutoTUnref<SkImageFilter> blurFilter(makeBlur());
     SkAutoTUnref<SkImageFilter> composedFilter(SkComposeImageFilter::Create(blurFilter, offsetFilter.get()));
     SkBitmap result;
     SkIPoint offset;
     SkImageFilter::Context ctx(SkMatrix::I(), SkIRect::MakeLargest(), nullptr);
     REPORTER_ASSERT(reporter, composedFilter->filterImage(&proxy, bitmap, ctx, &result, &offset));
     REPORTER_ASSERT(reporter, offset.fX == 1 && offset.fY == 0);
 }
 
 DEF_TEST(PartialCropRect, reporter) {
     SkBitmap bitmap;
     bitmap.allocN32Pixels(100, 100);
     bitmap.eraseARGB(0, 0, 0, 0);
     const SkSurfaceProps props(SkSurfaceProps::kLegacyFontHost_InitType);
     SkBitmapDevice device(bitmap, props);
-    SkImageFilter::Proxy proxy(&device);
+    SkImageFilter::DeviceProxy proxy(&device);
 
     SkImageFilter::CropRect cropRect(SkRect::MakeXYWH(100, 0, 20, 30),
         SkImageFilter::CropRect::kHasWidth_CropEdge | SkImageFilter::CropRect::kHasHeight_CropEdge);
     SkAutoTUnref<SkImageFilter> filter(make_grayscale(nullptr, &cropRect));
     SkBitmap result;
     SkIPoint offset;
     SkImageFilter::Context ctx(SkMatrix::I(), SkIRect::MakeLargest(), nullptr);
     REPORTER_ASSERT(reporter, filter->filterImage(&proxy, bitmap, ctx, &result, &offset));
     REPORTER_ASSERT(reporter, offset.fX == 0);
     REPORTER_ASSERT(reporter, offset.fY == 0);
@@ skipping 86 matching lines @@
         return;
     }
     const SkSurfaceProps props(SkSurfaceProps::kLegacyFontHost_InitType);
 
     SkAutoTUnref<SkGpuDevice> device(SkGpuDevice::Create(context,
                                                          SkSurface::kNo_Budgeted,
                                                          SkImageInfo::MakeN32Premul(100, 100),
                                                          0,
                                                          &props,
                                                          SkGpuDevice::kUninit_InitContents));
-    SkImageFilter::Proxy proxy(device);
+    SkImageFilter::DeviceProxy proxy(device);
 
     test_crop_rects(&proxy, reporter);
 }
 
 DEF_GPUTEST(HugeBlurImageFilterGPU, reporter, factory) {
     GrContext* context = factory->get(static_cast<GrContextFactory::GLContextType>(0));
     if (nullptr == context) {
         return;
     }
     const SkSurfaceProps props(SkSurfaceProps::kLegacyFontHost_InitType);
@@ skipping 33 matching lines @@
         return;
     }
     const SkSurfaceProps props(SkSurfaceProps::kLegacyFontHost_InitType);
 
     SkAutoTUnref<SkGpuDevice> device(SkGpuDevice::Create(context,
                                                          SkSurface::kNo_Budgeted,
                                                          SkImageInfo::MakeN32Premul(1, 1),
                                                          0,
                                                          &props,
                                                          SkGpuDevice::kUninit_InitContents));
-    SkImageFilter::Proxy proxy(device);
+    SkImageFilter::DeviceProxy proxy(device);
 
     test_negative_blur_sigma(&proxy, reporter);
 }
 #endif