094ccde238
Coarse workflow:
* Construction
1) build a Json tree
2) collect asset IDs (for preComp/image layer resolution)
3) "attach" pass
- traverse the Json tree
- build an SkSG dom, one fragment at a time
- attach "animator" objects to the dom, for each animated prop
4) done, we can throw away the Json tree
* For each animation tick
1) iterate over active animators and poke their respective dom nodes/attributes
2) revalidate the SkSG dom
3) draw the SkSG dom
Note: post construction, things are super-simple - we just poke SkSG DOM attributes
with interpolated values, and everything else is handled by SkSG (invalidation,
revalidation, render).
Change-Id: I96a02be7eb4fb4cb3831f59bf2b3908ea190c0dd
Reviewed-on: https://skia-review.googlesource.com/89420
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Florin Malita <fmalita@chromium.org>
42 lines
1.1 KiB
C++
42 lines
1.1 KiB
C++
/*
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* Copyright 2017 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 SkottyPriv_DEFINED
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#define SkottyPriv_DEFINED
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#include "SkJSONCPP.h"
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#include "SkScalar.h"
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#include "SkString.h"
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namespace skotty {
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#define LOG SkDebugf
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static inline SkScalar ParseScalar(const Json::Value& v, SkScalar defaultValue) {
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return !v.isNull() && v.isConvertibleTo(Json::realValue)
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? v.asFloat() : defaultValue;
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}
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static inline SkString ParseString(const Json::Value& v, const char defaultValue[]) {
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return SkString(!v.isNull() && v.isConvertibleTo(Json::stringValue)
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? v.asCString() : defaultValue);
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}
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static inline int ParseInt(const Json::Value& v, int defaultValue) {
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return !v.isNull() && v.isConvertibleTo(Json::intValue)
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? v.asInt() : defaultValue;
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}
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static inline bool ParseBool(const Json::Value& v, bool defaultValue) {
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return !v.isNull() && v.isConvertibleTo(Json::booleanValue)
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? v.asBool() : defaultValue;
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}
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} // namespace
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#endif // SkottyPriv_DEFINED
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