commit 41248071aceacd8830558cf431fe8898d2c912bd
author Hal Canary <halcanary@google.com> Thu Jul 11 16:32:53 2019 -0400
committer Skia Commit-Bot <skia-commit-bot@chromium.org> Fri Jul 12 15:05:01 2019 +0000
tree 499da256b3146f48600f3009372684cd831d224c
parent 5043f1f2cd93a1685b012b7bb7d21677108e04d2

tools: separate TimeUtils from AnimTimer

gm, slides, and samples no longer need to know about the implementation
details of AnimTimer.

This
    virtual bool onAnimate(const AnimTimer&);
becomes this:
    virtual bool onAnimate(double /*nanoseconds*/);
which is much easier to reason about.

AnimTimer itself is now part of viewer.

Change-Id: Ib70bf7a0798b1991f25204ae84f70463cdbeb358
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/226838
Reviewed-by: Ben Wagner <bungeman@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>

samplecode/SampleGlyphTransform.cpp

diff --git a/samplecode/SampleGlyphTransform.cpp b/samplecode/SampleGlyphTransform.cpp
index 4259ec5..2260a1a 100644
--- a/samplecode/SampleGlyphTransform.cpp
+++ b/samplecode/SampleGlyphTransform.cpp
@@ -12,7 +12,7 @@
 #include "include/core/SkRRect.h"
 #include "include/core/SkTypeface.h"
 #include "include/utils/SkRandom.h"
-#include "tools/timer/AnimTimer.h"
+#include "tools/timer/TimeUtils.h"
 
 #include <cmath>
 
@@ -54,9 +54,9 @@
                                font, paint);
     }
 
-    bool onAnimate(const AnimTimer& timer) override {
+    bool onAnimate(double nanos) override {
         constexpr SkScalar maxt = 100000;
-        double t = timer.pingPong(20, 0, 0, maxt); // d3 t is in milliseconds
+        double t = TimeUtils::PingPong(1e-9 * nanos, 20, 0, 0, maxt); // d3 t is in milliseconds
 
         fTranslate.set(sin(t / 3000) - t * this->width() * 0.7 / maxt, sin(t / 999) / t);
         fScale = 4.5 - std::sqrt(t) / 99;