2008-12-17 15:59:43 +00:00
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/*
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2011-07-28 14:26:00 +00:00
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* Copyright 2007 The Android Open Source Project
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2008-12-17 15:59:43 +00:00
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*
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2011-07-28 14:26:00 +00:00
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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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2008-12-17 15:59:43 +00:00
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*/
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#ifndef SkPicture_DEFINED
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#define SkPicture_DEFINED
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2019-04-23 17:05:21 +00:00
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#include "include/core/SkRect.h"
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#include "include/core/SkRefCnt.h"
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#include "include/core/SkTileMode.h"
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#include "include/core/SkTypes.h"
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2008-12-17 15:59:43 +00:00
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class SkCanvas;
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2016-08-11 10:55:15 +00:00
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class SkData;
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2017-12-05 20:11:24 +00:00
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struct SkDeserialProcs;
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2016-08-11 10:55:15 +00:00
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class SkImage;
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2019-04-02 21:49:12 +00:00
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class SkMatrix;
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2017-12-05 20:11:24 +00:00
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struct SkSerialProcs;
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2019-04-02 21:49:12 +00:00
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class SkShader;
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2008-12-17 15:59:43 +00:00
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class SkStream;
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class SkWStream;
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2013-06-28 21:32:00 +00:00
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2008-12-17 15:59:43 +00:00
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/** \class SkPicture
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2018-08-10 17:11:06 +00:00
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SkPicture records drawing commands made to SkCanvas. The command stream may be
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played in whole or in part at a later time.
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SkPicture is an abstract class. SkPicture may be generated by SkPictureRecorder
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or SkDrawable, or from SkPicture previously saved to SkData or SkStream.
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SkPicture may contain any SkCanvas drawing command, as well as one or more
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SkCanvas matrix or SkCanvas clip. SkPicture has a cull SkRect, which is used as
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a bounding box hint. To limit SkPicture bounds, use SkCanvas clip when
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recording or drawing SkPicture.
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2008-12-17 15:59:43 +00:00
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*/
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2015-05-20 17:55:49 +00:00
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class SK_API SkPicture : public SkRefCnt {
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2008-12-17 15:59:43 +00:00
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public:
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2017-12-15 20:42:14 +00:00
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2018-08-10 17:11:06 +00:00
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/** Recreates SkPicture that was serialized into a stream. Returns constructed SkPicture
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if successful; otherwise, returns nullptr. Fails if data does not permit
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constructing valid SkPicture.
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2018-10-31 14:54:50 +00:00
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procs->fPictureProc permits supplying a custom function to decode SkPicture.
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If procs->fPictureProc is nullptr, default decoding is used. procs->fPictureCtx
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may be used to provide user context to procs->fPictureProc; procs->fPictureProc
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2018-08-10 17:11:06 +00:00
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is called with a pointer to data, data byte length, and user context.
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2018-07-13 12:21:59 +00:00
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@param stream container for serial data
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@param procs custom serial data decoders; may be nullptr
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@return SkPicture constructed from stream data
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*/
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2018-06-11 20:25:43 +00:00
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static sk_sp<SkPicture> MakeFromStream(SkStream* stream,
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const SkDeserialProcs* procs = nullptr);
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2018-07-13 12:21:59 +00:00
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2018-08-10 17:11:06 +00:00
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/** Recreates SkPicture that was serialized into data. Returns constructed SkPicture
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if successful; otherwise, returns nullptr. Fails if data does not permit
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constructing valid SkPicture.
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2018-10-31 14:54:50 +00:00
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procs->fPictureProc permits supplying a custom function to decode SkPicture.
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If procs->fPictureProc is nullptr, default decoding is used. procs->fPictureCtx
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may be used to provide user context to procs->fPictureProc; procs->fPictureProc
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2018-08-10 17:11:06 +00:00
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is called with a pointer to data, data byte length, and user context.
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@param data container for serial data
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@param procs custom serial data decoders; may be nullptr
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@return SkPicture constructed from data
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*/
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2018-06-11 20:25:43 +00:00
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static sk_sp<SkPicture> MakeFromData(const SkData* data,
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const SkDeserialProcs* procs = nullptr);
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2018-07-13 12:21:59 +00:00
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/**
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@param data pointer to serial data
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@param size size of data
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@param procs custom serial data decoders; may be nullptr
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@return SkPicture constructed from data
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*/
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2017-12-20 19:12:07 +00:00
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static sk_sp<SkPicture> MakeFromData(const void* data, size_t size,
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2018-06-11 20:25:43 +00:00
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const SkDeserialProcs* procs = nullptr);
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2014-02-07 12:20:04 +00:00
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2018-07-13 12:21:59 +00:00
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/** \class SkPicture::AbortCallback
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2018-08-10 17:11:06 +00:00
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AbortCallback is an abstract class. An implementation of AbortCallback may
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passed as a parameter to SkPicture::playback, to stop it before all drawing
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commands have been processed.
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If AbortCallback::abort returns true, SkPicture::playback is interrupted.
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2015-01-07 15:28:41 +00:00
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*/
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class SK_API AbortCallback {
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public:
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2018-07-13 12:21:59 +00:00
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/** Has no effect.
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@return abstract class cannot be instantiated
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*/
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2015-01-07 15:28:41 +00:00
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AbortCallback() {}
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2018-07-13 12:21:59 +00:00
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/** Has no effect.
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*/
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2015-01-07 15:28:41 +00:00
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virtual ~AbortCallback() {}
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/** Stops SkPicture playback when some condition is met. A subclass of
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2018-08-10 17:11:06 +00:00
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AbortCallback provides an override for abort() that can stop SkPicture::playback.
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The part of SkPicture drawn when aborted is undefined. SkPicture instantiations are
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free to stop drawing at different points during playback.
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If the abort happens inside one or more calls to SkCanvas::save(), stack
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of SkCanvas matrix and SkCanvas clip values is restored to its state before
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SkPicture::playback was called.
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2018-07-13 12:21:59 +00:00
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@return true to stop playback
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*/
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2015-01-07 15:28:41 +00:00
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virtual bool abort() = 0;
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};
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2018-08-10 17:11:06 +00:00
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/** Replays the drawing commands on the specified canvas. In the case that the
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commands are recorded, each command in the SkPicture is sent separately to canvas.
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To add a single command to draw SkPicture to recording canvas, call
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SkCanvas::drawPicture instead.
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2018-07-13 12:21:59 +00:00
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@param canvas receiver of drawing commands
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@param callback allows interruption of playback
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2008-12-17 15:59:43 +00:00
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*/
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2018-06-11 20:25:43 +00:00
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virtual void playback(SkCanvas* canvas, AbortCallback* callback = nullptr) const = 0;
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2015-05-18 20:47:17 +00:00
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2018-08-10 17:11:06 +00:00
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/** Returns cull SkRect for this picture, passed in when SkPicture was created.
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Returned SkRect does not specify clipping SkRect for SkPicture; cull is hint
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of SkPicture bounds.
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SkPicture is free to discard recorded drawing commands that fall outside
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cull.
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2018-07-13 12:21:59 +00:00
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@return bounds passed when SkPicture was created
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*/
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2015-05-19 18:11:26 +00:00
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virtual SkRect cullRect() const = 0;
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2018-08-10 17:11:06 +00:00
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/** Returns a non-zero value unique among SkPicture in Skia process.
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2018-07-13 12:21:59 +00:00
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@return identifier for SkPicture
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*/
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2018-12-04 14:05:26 +00:00
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uint32_t uniqueID() const { return fUniqueID; }
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2014-04-02 23:51:13 +00:00
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2018-08-10 17:11:06 +00:00
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/** Returns storage containing SkData describing SkPicture, using optional custom
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encoders.
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2018-10-31 14:54:50 +00:00
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procs->fPictureProc permits supplying a custom function to encode SkPicture.
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If procs->fPictureProc is nullptr, default encoding is used. procs->fPictureCtx
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may be used to provide user context to procs->fPictureProc; procs->fPictureProc
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2018-08-10 17:11:06 +00:00
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is called with a pointer to SkPicture and user context.
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2018-07-13 12:21:59 +00:00
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@param procs custom serial data encoders; may be nullptr
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@return storage containing serialized SkPicture
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*/
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2018-06-11 20:25:43 +00:00
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sk_sp<SkData> serialize(const SkSerialProcs* procs = nullptr) const;
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2018-07-13 12:21:59 +00:00
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/** Writes picture to stream, using optional custom encoders.
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2018-10-31 14:54:50 +00:00
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procs->fPictureProc permits supplying a custom function to encode SkPicture.
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If procs->fPictureProc is nullptr, default encoding is used. procs->fPictureCtx
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may be used to provide user context to procs->fPictureProc; procs->fPictureProc
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2018-08-10 17:11:06 +00:00
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is called with a pointer to SkPicture and user context.
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2018-07-13 12:21:59 +00:00
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@param stream writable serial data stream
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@param procs custom serial data encoders; may be nullptr
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*/
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2018-06-11 20:25:43 +00:00
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void serialize(SkWStream* stream, const SkSerialProcs* procs = nullptr) const;
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2017-12-20 19:12:07 +00:00
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2018-08-10 17:11:06 +00:00
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/** Returns a placeholder SkPicture. Result does not draw, and contains only
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cull SkRect, a hint of its bounds. Result is immutable; it cannot be changed
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later. Result identifier is unique.
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Returned placeholder can be intercepted during playback to insert other
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commands into SkCanvas draw stream.
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2018-07-13 12:21:59 +00:00
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@param cull placeholder dimensions
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@return placeholder with unique identifier
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*/
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2018-01-26 14:49:48 +00:00
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static sk_sp<SkPicture> MakePlaceholder(SkRect cull);
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2018-08-10 17:11:06 +00:00
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/** Returns the approximate number of operations in SkPicture. Returned value
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may be greater or less than the number of SkCanvas calls
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recorded: some calls may be recorded as more than one operation, other
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2018-07-13 12:21:59 +00:00
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calls may be optimized away.
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@return approximate operation count
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*/
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2018-01-27 17:30:04 +00:00
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virtual int approximateOpCount() const = 0;
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2018-07-13 12:21:59 +00:00
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/** Returns the approximate byte size of SkPicture. Does not include large objects
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2018-08-10 17:11:06 +00:00
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referenced by SkPicture.
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2018-07-13 12:21:59 +00:00
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@return approximate size
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*/
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2017-12-25 00:50:57 +00:00
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virtual size_t approximateBytesUsed() const = 0;
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2019-04-02 21:49:12 +00:00
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/** Return a new shader that will draw with this picture.
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*
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* @param tmx The tiling mode to use when sampling in the x-direction.
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* @param tmy The tiling mode to use when sampling in the y-direction.
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* @param localMatrix Optional matrix used when sampling
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* @param tile The tile rectangle in picture coordinates: this represents the subset
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* (or superset) of the picture used when building a tile. It is not
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* affected by localMatrix and does not imply scaling (only translation
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* and cropping). If null, the tile rect is considered equal to the picture
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* bounds.
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* @return Returns a new shader object. Note: this function never returns null.
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*/
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sk_sp<SkShader> makeShader(SkTileMode tmx, SkTileMode tmy,
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const SkMatrix* localMatrix, const SkRect* tileRect) const;
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sk_sp<SkShader> makeShader(SkTileMode tmx, SkTileMode tmy,
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const SkMatrix* localMatrix = nullptr) const;
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2015-05-19 18:11:26 +00:00
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private:
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// Subclass whitelist.
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SkPicture();
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friend class SkBigPicture;
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friend class SkEmptyPicture;
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2018-06-11 20:25:43 +00:00
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friend class SkPicturePriv;
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2019-05-20 12:45:50 +00:00
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template <typename> friend class SkMiniPicture;
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Revert of Sketch splitting SkPicture into an interface and SkBigPicture. (patchset #25 id:480001 of https://codereview.chromium.org/1112523006/)
Reason for revert:
win_chromium_compile_dbg_ng
FAILED: ninja -t msvc -e environment.x86 -- E:\b\build\goma/gomacc "E:\b\depot_tools\win_toolchain\vs2013_files\VC\bin\amd64_x86\cl.exe" /nologo /showIncludes /FC @obj\third_party\skia\src\core\skia.SkBitmapHeap.obj.rsp /c ..\..\third_party\skia\src\core\SkBitmapHeap.cpp /Foobj\third_party\skia\src\core\skia.SkBitmapHeap.obj /Fdobj\skia\skia.cc.pdb
e:\b\build\slave\win\build\src\third_party\skia\include\core\skpicture.h(176) : error C2487: 'CURRENT_PICTURE_VERSION' : member of dll interface class may not be declared with dll interface
Original issue's description:
> Sketch splitting SkPicture into an interface and SkBigPicture.
>
> Adds small pictures for drawRect(), drawTextBlob(), and drawPath().
> These cover about 89% of draw calls from Blink SKPs,
> and about 25% of draw calls from our GMs.
>
> SkPicture handles:
> - serialization and deserialization
> - unique IDs
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> Everything else is left to the subclasses:
> - playback(), cullRect()
> - hasBitmap(), hasText(), suitableForGPU(), etc.
> - LayerInfo / AccelData if applicable.
>
> The time to record a 1-op picture improves a good chunk
> (2 mallocs to 1), and the time to record a 0-op picture
> greatly improves (2 mallocs to none):
>
> picture_overhead_draw: 450ns -> 350ns
> picture_overhead_nodraw: 300ns -> 90ns
>
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/c92c129ff85b05a714bd1bf921c02d5e14651f8b
>
> Latest blink_linux_rel:
>
> http://build.chromium.org/p/tryserver.blink/builders/linux_blink_rel/builds/61248
>
> Committed: https://skia.googlesource.com/skia/+/15877b6eae33a9282458bdb904a6d00440eca0ec
TBR=reed@google.com,robertphillips@google.com,fmalita@chromium.org,mtklein@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:
Review URL: https://codereview.chromium.org/1130283004
2015-05-18 21:53:43 +00:00
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2019-06-07 18:40:00 +00:00
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void serialize(SkWStream*, const SkSerialProcs*, class SkRefCntSet* typefaces,
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bool textBlobsOnly=false) const;
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2018-06-11 20:25:43 +00:00
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static sk_sp<SkPicture> MakeFromStream(SkStream*, const SkDeserialProcs*,
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class SkTypefacePlayback*);
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2015-08-18 15:29:59 +00:00
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friend class SkPictureData;
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2017-12-20 19:09:20 +00:00
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/** Return true if the SkStream/Buffer represents a serialized picture, and
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fills out SkPictInfo. After this function returns, the data source is not
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rewound so it will have to be manually reset before passing to
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2018-01-26 14:49:48 +00:00
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MakeFromStream or MakeFromBuffer. Note, MakeFromStream and
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MakeFromBuffer perform this check internally so these entry points are
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2017-12-20 19:09:20 +00:00
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intended for stand alone tools.
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If false is returned, SkPictInfo is unmodified.
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*/
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2018-06-11 20:25:43 +00:00
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static bool StreamIsSKP(SkStream*, struct SkPictInfo*);
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static bool BufferIsSKP(class SkReadBuffer*, struct SkPictInfo*);
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friend bool SkPicture_StreamIsSKP(SkStream*, struct SkPictInfo*);
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// Returns NULL if this is not an SkBigPicture.
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virtual const class SkBigPicture* asSkBigPicture() const { return nullptr; }
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2017-12-20 19:09:20 +00:00
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2019-05-20 12:45:50 +00:00
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friend struct SkPathCounter;
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2014-08-29 15:03:56 +00:00
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// V35: Store SkRect (rather then width & height) in header
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2014-09-29 19:10:27 +00:00
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// V36: Remove (obsolete) alphatype from SkColorTable
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2014-12-04 15:50:14 +00:00
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// V37: Added shadow only option to SkDropShadowImageFilter (last version to record CLEAR)
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2014-12-09 21:07:22 +00:00
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// V38: Added PictureResolution option to SkPictureImageFilter
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// V39: Added FilterLevel option to SkPictureImageFilter
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2015-03-18 20:14:54 +00:00
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// V40: Remove UniqueID serialization from SkImageFilter.
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2015-04-10 15:39:58 +00:00
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// V41: Added serialization of SkBitmapSource's filterQuality parameter
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2015-05-20 19:05:15 +00:00
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// V42: Added a bool to SkPictureShader serialization to indicate did-we-serialize-a-picture?
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2015-06-22 19:48:26 +00:00
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// V43: Added DRAW_IMAGE and DRAW_IMAGE_RECT opt codes to serialized data
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2016-03-05 00:36:20 +00:00
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// V44: Move annotations from paint to drawAnnotation
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2016-04-08 19:19:50 +00:00
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// V45: Add invNormRotation to SkLightingShader.
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2016-07-07 19:47:17 +00:00
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// V46: Add drawTextRSXform
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2016-08-10 23:25:25 +00:00
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// V47: Add occluder rect to SkBlurMaskFilter
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2016-08-30 18:58:33 +00:00
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// V48: Read and write extended SkTextBlobs.
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2016-09-28 18:27:28 +00:00
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// V49: Gradients serialized as SkColor4f + SkColorSpace
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2016-10-06 00:33:02 +00:00
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// V50: SkXfermode -> SkBlendMode
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2016-10-28 19:42:34 +00:00
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// V51: more SkXfermode -> SkBlendMode
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2017-03-13 13:03:24 +00:00
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// V52: Remove SkTextBlob::fRunCount
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2017-04-28 17:48:37 +00:00
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// V53: SaveLayerRec clip mask
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2017-06-09 14:51:52 +00:00
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// V54: ComposeShader can use a Mode or a Lerp
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2017-06-19 03:35:57 +00:00
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// V55: Drop blendmode[] from MergeImageFilter
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2017-07-11 03:20:33 +00:00
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// V56: Add TileMode in SkBlurImageFilter.
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2017-08-01 20:38:08 +00:00
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// V57: Sweep tiling info.
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2017-10-18 20:22:35 +00:00
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// V58: No more 2pt conical flipping.
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2017-11-09 21:50:20 +00:00
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// V59: No more LocalSpace option on PictureImageFilter
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2018-01-03 16:32:13 +00:00
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// V60: Remove flags in picture header
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2018-01-18 20:19:13 +00:00
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// V61: Change SkDrawPictureRec to take two colors rather than two alphas
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2018-03-08 21:29:12 +00:00
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// V62: Don't negate size of custom encoded images (don't write origin x,y either)
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2018-05-29 19:41:27 +00:00
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// V63: Store image bounds (including origin) instead of just width/height to support subsets
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2018-08-17 12:10:27 +00:00
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// V64: Remove occluder feature from blur maskFilter
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2018-12-18 22:38:18 +00:00
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// V65: Float4 paint color
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// V66: Add saveBehind
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2018-12-21 21:19:24 +00:00
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// V67: Blobs serialize fonts instead of paints
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2019-01-04 19:01:06 +00:00
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// V68: Paint doesn't serialize font-related stuff
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2014-02-18 22:08:16 +00:00
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2014-02-25 02:16:10 +00:00
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// Only SKPs within the min/current picture version range (inclusive) can be read.
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2018-01-03 18:17:18 +00:00
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static const uint32_t MIN_PICTURE_VERSION = 56; // august 2017
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2019-01-04 19:01:06 +00:00
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static const uint32_t CURRENT_PICTURE_VERSION = 68;
|
2012-11-13 20:41:18 +00:00
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2016-10-07 19:50:53 +00:00
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static_assert(MIN_PICTURE_VERSION <= 62, "Remove kFontAxes_bad from SkFontDescriptor.cpp");
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2018-06-11 20:25:43 +00:00
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static bool IsValidPictInfo(const struct SkPictInfo& info);
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static sk_sp<SkPicture> Forwardport(const struct SkPictInfo&,
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const class SkPictureData*,
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class SkReadBuffer* buffer);
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Revert of Sketch splitting SkPicture into an interface and SkBigPicture. (patchset #22 id:420001 of https://codereview.chromium.org/1112523006/)
Reason for revert:
speculative revert to fix failures in DEPS roll
Original issue's description:
> Sketch splitting SkPicture into an interface and SkBigPicture.
>
> Adds small pictures for drawRect(), drawTextBlob(), and drawPath().
> These cover about 89% of draw calls from Blink SKPs,
> and about 25% of draw calls from our GMs.
>
> SkPicture handles:
> - serialization and deserialization
> - unique IDs
>
> Everything else is left to the subclasses:
> - playback(), cullRect()
> - hasBitmap(), hasText(), suitableForGPU(), etc.
> - LayerInfo / AccelData if applicable.
>
> The time to record a 1-op picture improves a good chunk
> (2 mallocs to 1), and the time to record a 0-op picture
> greatly improves (2 mallocs to none):
>
> picture_overhead_draw: 450ns -> 350ns
> picture_overhead_nodraw: 300ns -> 90ns
>
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/c92c129ff85b05a714bd1bf921c02d5e14651f8b
TBR=reed@google.com,robertphillips@google.com,mtklein@google.com,mtklein@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:
Review URL: https://codereview.chromium.org/1130333002
2015-05-08 00:30:13 +00:00
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2018-06-11 20:25:43 +00:00
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struct SkPictInfo createHeader() const;
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class SkPictureData* backport() const;
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2014-11-17 14:45:18 +00:00
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2018-12-04 14:05:26 +00:00
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uint32_t fUniqueID;
|
2008-12-17 15:59:43 +00:00
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};
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#endif
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