97 lines
3.1 KiB
C++
97 lines
3.1 KiB
C++
/*
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* Copyright 2014 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef SkPictureRecorder_DEFINED
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#define SkPictureRecorder_DEFINED
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#include "SkBBHFactory.h"
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#include "SkPicture.h"
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#include "SkRefCnt.h"
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#ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK
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namespace android {
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class Picture;
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};
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#endif
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class SkCanvas;
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class SkPictureRecord;
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class SkRecord;
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class SkRecorder;
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class SK_API SkPictureRecorder : SkNoncopyable {
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public:
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SkPictureRecorder();
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~SkPictureRecorder();
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#ifdef SK_LEGACY_PICTURE_SIZE_API
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SkCanvas* beginRecording(int width, int height,
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SkBBHFactory* bbhFactory = NULL,
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uint32_t recordFlags = 0) {
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return this->beginRecording(SkIntToScalar(width), SkIntToScalar(height),
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bbhFactory, recordFlags);
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}
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#endif
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enum RecordFlags {
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// This flag indicates that, if some BHH is being computed, saveLayer
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// information should also be extracted at the same time.
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kComputeSaveLayerInfo_RecordFlag = 0x01
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};
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/** Returns the canvas that records the drawing commands.
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@param width the width of the cull rect used when recording this picture.
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@param height the height of the cull rect used when recording this picture.
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@param bbhFactory factory to create desired acceleration structure
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@param recordFlags optional flags that control recording.
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@return the canvas.
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*/
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SkCanvas* beginRecording(const SkRect& bounds,
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SkBBHFactory* bbhFactory = NULL,
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uint32_t recordFlags = 0);
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SkCanvas* beginRecording(SkScalar width, SkScalar height,
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SkBBHFactory* bbhFactory = NULL,
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uint32_t recordFlags = 0) {
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return this->beginRecording(SkRect::MakeWH(width, height), bbhFactory, recordFlags);
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}
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/** Returns the recording canvas if one is active, or NULL if recording is
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not active. This does not alter the refcnt on the canvas (if present).
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*/
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SkCanvas* getRecordingCanvas();
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/** Signal that the caller is done recording. This invalidates the canvas
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returned by beginRecording/getRecordingCanvas, and returns the
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created SkPicture. Note that the returned picture has its creation
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ref which the caller must take ownership of.
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*/
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SkPicture* endRecording();
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private:
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void reset();
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/** Replay the current (partially recorded) operation stream into
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canvas. This call doesn't close the current recording.
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*/
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#ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK
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friend class android::Picture;
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#endif
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friend class SkPictureRecorderReplayTester; // for unit testing
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void partialReplay(SkCanvas* canvas) const;
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uint32_t fFlags;
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SkRect fCullRect;
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SkAutoTUnref<SkBBoxHierarchy> fBBH;
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SkAutoTUnref<SkRecorder> fRecorder;
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SkAutoTDelete<SkRecord> fRecord;
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typedef SkNoncopyable INHERITED;
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};
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#endif
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