| /* |
| * Copyright 2012 The Android Open Source Project |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SkDeviceImageFilterProxy_DEFINED |
| #define SkDeviceImageFilterProxy_DEFINED |
| |
| #include "SkBitmapDevice.h" |
| #include "SkDevice.h" |
| #include "SkImageFilter.h" |
| #include "SkSurfaceProps.h" |
| |
| class SkDeviceImageFilterProxy : public SkImageFilter::Proxy { |
| public: |
| SkDeviceImageFilterProxy(SkBaseDevice* device, const SkSurfaceProps& props) |
| : fDevice(device) |
| , fProps(props.flags(), kUnknown_SkPixelGeometry) |
| {} |
| |
| SkBaseDevice* createDevice(int w, int h) override { |
| SkBaseDevice::CreateInfo cinfo(SkImageInfo::MakeN32Premul(w, h), |
| SkBaseDevice::kNever_TileUsage, |
| kUnknown_SkPixelGeometry, |
| true /*forImageFilter*/); |
| SkBaseDevice* dev = fDevice->onCreateDevice(cinfo, NULL); |
| if (NULL == dev) { |
| dev = SkBitmapDevice::Create(cinfo.fInfo); |
| } |
| return dev; |
| } |
| bool canHandleImageFilter(const SkImageFilter* filter) override { |
| return fDevice->canHandleImageFilter(filter); |
| } |
| virtual bool filterImage(const SkImageFilter* filter, const SkBitmap& src, |
| const SkImageFilter::Context& ctx, |
| SkBitmap* result, SkIPoint* offset) override { |
| return fDevice->filterImage(filter, src, ctx, result, offset); |
| } |
| |
| const SkSurfaceProps* surfaceProps() const override { |
| return &fProps; |
| } |
| |
| private: |
| SkBaseDevice* fDevice; |
| const SkSurfaceProps fProps; |
| }; |
| |
| #endif |