| /* |
| * 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 "SkRectShaderImageFilter.h" |
| #include "SkBitmap.h" |
| #include "SkCanvas.h" |
| #include "SkDevice.h" |
| #include "SkFlattenableBuffers.h" |
| #include "SkShader.h" |
| |
| SkRectShaderImageFilter* SkRectShaderImageFilter::Create(SkShader* s, const SkRect& rect) { |
| SkASSERT(s); |
| return SkNEW_ARGS(SkRectShaderImageFilter, (s, rect)); |
| } |
| |
| SkRectShaderImageFilter::SkRectShaderImageFilter(SkShader* s, const SkRect& rect) |
| : INHERITED(NULL) |
| , fShader(s) |
| , fRect(rect) { |
| SkASSERT(s); |
| s->ref(); |
| } |
| |
| SkRectShaderImageFilter::SkRectShaderImageFilter(SkFlattenableReadBuffer& buffer) |
| : INHERITED(buffer) { |
| fShader = buffer.readFlattenableT<SkShader>(); |
| buffer.readRect(&fRect); |
| } |
| |
| void SkRectShaderImageFilter::flatten(SkFlattenableWriteBuffer& buffer) const { |
| this->INHERITED::flatten(buffer); |
| |
| buffer.writeFlattenable(fShader); |
| buffer.writeRect(fRect); |
| } |
| |
| SkRectShaderImageFilter::~SkRectShaderImageFilter() { |
| SkSafeUnref(fShader); |
| } |
| |
| bool SkRectShaderImageFilter::onFilterImage(Proxy* proxy, |
| const SkBitmap& source, |
| const SkMatrix&, |
| SkBitmap* result, |
| SkIPoint*) { |
| SkRect rect(fRect); |
| if (rect.isEmpty()) { |
| rect = SkRect::MakeWH(SkIntToScalar(source.width()), SkIntToScalar(source.height())); |
| } |
| |
| if (rect.isEmpty()) { |
| return false; |
| } |
| |
| SkAutoTUnref<SkDevice> device(proxy->createDevice(SkScalarCeilToInt(rect.width()), |
| SkScalarCeilToInt(rect.height()))); |
| SkCanvas canvas(device.get()); |
| SkPaint paint; |
| paint.setShader(fShader); |
| canvas.drawRect(rect, paint); |
| *result = device.get()->accessBitmap(false); |
| return true; |
| } |