Index: samplecode/SampleAnimatedText.cpp |
diff --git a/samplecode/SampleAnimatedText.cpp b/samplecode/SampleAnimatedText.cpp |
deleted file mode 100755 |
index e950472901c9582ccba275af1429e6ed003aee12..0000000000000000000000000000000000000000 |
--- a/samplecode/SampleAnimatedText.cpp |
+++ /dev/null |
@@ -1,161 +0,0 @@ |
-/* |
- * Copyright 2015 Google Inc. |
- * |
- * Use of this source code is governed by a BSD-style license that can be |
- * found in the LICENSE file. |
- */ |
- |
-#include "SampleCode.h" |
-#include "SkView.h" |
-#include "SkCanvas.h" |
-#include "SkUtils.h" |
-#include "SkColorPriv.h" |
-#include "SkColorFilter.h" |
-#include "SkGpuDevice.h" |
-#include "SkRandom.h" |
-#include "SkSystemEventTypes.h" |
-#include "SkTime.h" |
-#include "SkTypeface.h" |
-#include "SkXfermode.h" |
-#include "Timer.h" |
- |
-#include "GrContext.h" |
- |
-SkRandom gRand; |
- |
-static void DrawTheText(SkCanvas* canvas, const char text[], size_t length, SkScalar x, SkScalar y, |
- const SkPaint& paint) { |
- SkPaint p(paint); |
- |
- p.setSubpixelText(true); |
- canvas->drawText(text, length, x, y, p); |
-} |
- |
-// This sample demonstrates the cache behavior of bitmap vs. distance field text |
-// It renders variously sized text with an animated scale and rotation. |
-// Specifically one should: |
-// use 'D' to toggle between bitmap and distance field fonts |
-// use '2' to toggle between scaling the image by 2x |
-// -- this feature boosts the rendering out of the small point-size |
-// SDF-text special case (which falls back to bitmap fonts for small points) |
- |
-class AnimatedTextView : public SampleView { |
-public: |
- AnimatedTextView() : fScale(1.0f), fScaleInc(0.1f), fRotation(0.0f), fSizeScale(1) { |
- fCurrentTime = 0; |
- fTimer.start(); |
- memset(fTimes, 0, sizeof(fTimes)); |
- } |
- |
-protected: |
- // overrides from SkEventSink |
- bool onQuery(SkEvent* evt) override { |
- if (SampleCode::TitleQ(*evt)) { |
- SampleCode::TitleR(evt, "AnimatedText"); |
- return true; |
- } |
- |
- SkUnichar uni; |
- if (SampleCode::CharQ(*evt, &uni)) { |
- if ('2' == uni) { |
- if (fSizeScale == 2) { |
- fSizeScale = 1; |
- } else { |
- fSizeScale = 2; |
- } |
- return true; |
- } |
- } |
- return this->INHERITED::onQuery(evt); |
- } |
- |
- void onDrawContent(SkCanvas* canvas) override { |
- SkPaint paint; |
- SkSafeUnref(paint.setTypeface(SkTypeface::CreateFromFile("/skimages/samplefont.ttf"))); |
- paint.setAntiAlias(true); |
- paint.setFilterQuality(kMedium_SkFilterQuality); |
- |
- SkString outString("fps: "); |
- fTimer.end(); |
- |
- // TODO: generalize this timing code in utils |
- fTimes[fCurrentTime] = (float)(fTimer.fWall); |
- fCurrentTime = (fCurrentTime + 1) & 0x1f; |
- |
- float meanTime = 0.0f; |
- for (int i = 0; i < 32; ++i) { |
- meanTime += fTimes[i]; |
- } |
- meanTime /= 32.f; |
- SkScalar fps = 1000.f / meanTime; |
- outString.appendScalar(fps); |
- outString.append(" ms: "); |
- outString.appendScalar(meanTime); |
- |
- SkString modeString("Text scale: "); |
- modeString.appendU32(fSizeScale); |
- modeString.append("x"); |
- |
- fTimer.start(); |
- |
- canvas->save(); |
- |
- SkBaseDevice* device = canvas->getDevice_just_for_deprecated_compatibility_testing(); |
- GrContext* grContext = canvas->getGrContext(); |
- if (grContext) { |
- grContext->drawFontCache(SkRect::MakeXYWH(512, 10, 512, 512), kA8_GrMaskFormat, paint, |
- reinterpret_cast<SkGpuDevice*>(device)->accessRenderTarget()); |
- } |
- |
- canvas->translate(180, 180); |
- canvas->rotate(fRotation); |
- canvas->scale(fScale, fScale); |
- canvas->translate(-180, -180); |
- |
- const char* text = "Hamburgefons"; |
- size_t length = strlen(text); |
- |
- SkScalar y = SkIntToScalar(0); |
- for (int i = 12; i <= 26; i++) { |
- paint.setTextSize(SkIntToScalar(i*fSizeScale)); |
- y += paint.getFontSpacing(); |
- DrawTheText(canvas, text, length, SkIntToScalar(110), y, paint); |
- } |
- canvas->restore(); |
- |
- paint.setTextSize(16); |
- canvas->drawText(outString.c_str(), outString.size(), 512.f, 540.f, paint); |
- canvas->drawText(modeString.c_str(), modeString.size(), 768.f, 540.f, paint); |
- } |
- |
- bool onAnimate(const SkAnimTimer& timer) override { |
- // We add noise to the scale and rotation animations to |
- // keep the font atlas from falling into a steady state |
- fRotation += (1.0f + gRand.nextRangeF(-0.1f, 0.1f)); |
- fScale += (fScaleInc + gRand.nextRangeF(-0.025f, 0.025f)); |
- if (fScale >= 2.0f) { |
- fScaleInc = -0.1f; |
- } else if (fScale <= 1.0f) { |
- fScaleInc = 0.1f; |
- } |
- return true; |
- } |
- |
-private: |
- float fScale; |
- float fScaleInc; |
- float fRotation; |
- int fSizeScale; |
- |
- WallTimer fTimer; |
- float fTimes[32]; |
- int fCurrentTime; |
- |
- |
- typedef SampleView INHERITED; |
-}; |
- |
-////////////////////////////////////////////////////////////////////////////// |
- |
-static SkView* MyFactory() { return new AnimatedTextView; } |
-static SkViewRegister reg(MyFactory); |