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/*
* 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 filterImage(const SkImageFilter* filter, const SkBitmap& src,
const SkImageFilter::Context& ctx, SkBitmap* res, SkIPoint* offset) override {
return fDevice->filterImage(filter, src, ctx, res, offset);
}
const SkSurfaceProps* surfaceProps() const override {
return &fProps;
}
private:
SkBaseDevice* fDevice;
const SkSurfaceProps fProps;
};
#endif
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