skia2/samplecode/SampleAudio.cpp
John Stiles 7bf799956d Reland "Add format-specifier warnings to SkDebugf."
This is a reland of e58831cd95

Original change's description:
> Add format-specifier warnings to SkDebugf.
>
> This CL fixes up many existing format-specifier violations in Skia.
> Note that GCC has a warning for formatting nothing, so existing calls to
> `SkDebugf("")` have been removed, or replaced with `SkDebugf("%s", "")`.
> These were apparently meant to be used as a place to set a breakpoint.
>
> Some of our clients also use SkDebug with bad format specifiers, so this
> check is currently only enabled when SKIA_IMPLEMENTATION is true.
>
> Change-Id: I8177a1298a624c6936adc24e0d8f481362a356d0
> Bug: skia:12143
> Reviewed-on: https://skia-review.googlesource.com/c/skia/+/420902
> Auto-Submit: John Stiles <johnstiles@google.com>
> Commit-Queue: Brian Osman <brianosman@google.com>
> Reviewed-by: Brian Osman <brianosman@google.com>

Bug: skia:12143
Change-Id: Id3c0c21436ebd13899908d5ed5d44c42a0e23921
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/421918
Commit-Queue: John Stiles <johnstiles@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2021-06-25 17:57:43 +00:00

96 lines
2.7 KiB
C++

/*
* Copyright 2020 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "include/core/SkCanvas.h"
#include "include/core/SkData.h"
#include "modules/audioplayer/SkAudioPlayer.h"
#include "samplecode/Sample.h"
#include "src/core/SkUtils.h"
#include "tools/Resources.h"
class AudioView : public Sample {
std::unique_ptr<SkAudioPlayer> fPlayer;
SkRect fBar;
public:
AudioView() {}
protected:
SkString name() override { return SkString("Audio"); }
void onOnceBeforeDraw() override {
auto data = SkData::MakeFromFileName("/Users/reed/skia/mp3/scott-joplin-peacherine-rag.mp3");
if (data) {
fPlayer = SkAudioPlayer::Make(data);
SkDebugf("make: dur:%g time%g state:%d",
fPlayer->duration(),
fPlayer->time(),
(int)fPlayer->state());
}
fBar = { 10, 10, 510, 30 };
}
void onDrawContent(SkCanvas* canvas) override {
if (!fPlayer) {
return;
}
SkPaint p;
p.setColor(0xFFCCCCCC);
canvas->drawRect(fBar, p);
p.setColor(fPlayer->isPlaying() ? SK_ColorBLUE : 0xFF8888FF);
SkRect r = fBar;
r.fRight = r.fLeft + (float)fPlayer->normalizedTime() * r.width();
canvas->drawRect(r, p);
}
bool onChar(SkUnichar c) override {
if (c == ' ') {
switch (fPlayer->state()) {
case SkAudioPlayer::State::kPlaying: fPlayer->pause(); break;
case SkAudioPlayer::State::kPaused: fPlayer->play(); break;
case SkAudioPlayer::State::kStopped: fPlayer->play(); break;
}
return true;
}
return this->INHERITED::onChar(c);
}
Click* onFindClickHandler(SkScalar x, SkScalar y, skui::ModifierKey) override {
if (fPlayer && fBar.contains(x, y)) {
bool wasPlaying = fPlayer->isPlaying();
if (wasPlaying) {
fPlayer->pause();
}
return new Click([this, wasPlaying](Click* click) {
if (fBar.contains(click->fCurr.fX, click->fCurr.fY)) {
fPlayer->setNormalizedTime((click->fCurr.fX - fBar.fLeft) / fBar.width());
}
if (click->fState == skui::InputState::kUp) {
if (wasPlaying) {
fPlayer->play();
}
}
return true;
});
}
return nullptr;
}
bool onAnimate(double /*nanos*/) override {
return true;
}
private:
using INHERITED = Sample;
};
DEF_SAMPLE( return new AudioView; )