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serenity/Userland/Applications/SoundPlayer/SampleWidget.h

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Meta: Add license header to source files As suggested by Joshua, this commit adds the 2-clause BSD license as a comment block to the top of every source file. For the first pass, I've just added myself for simplicity. I encourage everyone to add themselves as copyright holders of any file they've added or modified in some significant way. If I've added myself in error somewhere, feel free to replace it with the appropriate copyright holder instead. Going forward, all new source files should include a license header.
2020-01-18 08:38:21 +00:00
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
Applications: Use default constructors/destructors https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#cother-other-default-operation-rules "The compiler is more likely to get the default semantics right and you cannot implement these functions better than the compiler."
2022-02-10 19:28:48 +00:00
* Copyright (c) 2022, the SerenityOS developers.
Meta: Add license header to source files As suggested by Joshua, this commit adds the 2-clause BSD license as a comment block to the top of every source file. For the first pass, I've just added myself for simplicity. I encourage everyone to add themselves as copyright holders of any file they've added or modified in some significant way. If I've added myself in error somewhere, feel free to replace it with the appropriate copyright holder instead. Going forward, all new source files should include a license header.
2020-01-18 08:38:21 +00:00
*
Everything: Move to SPDX license identifiers in all files. SPDX License Identifiers are a more compact / standardized way of representing file license information. See: https://spdx.dev/resources/use/#identifiers This was done with the `ambr` search and replace tool. ambr --no-parent-ignore --key-from-file --rep-from-file key.txt rep.txt *
2021-04-22 08:24:48 +00:00
* SPDX-License-Identifier: BSD-2-Clause
Meta: Add license header to source files As suggested by Joshua, this commit adds the 2-clause BSD license as a comment block to the top of every source file. For the first pass, I've just added myself for simplicity. I encourage everyone to add themselves as copyright holders of any file they've added or modified in some significant way. If I've added myself in error somewhere, feel free to replace it with the appropriate copyright holder instead. Going forward, all new source files should include a license header.
2020-01-18 08:38:21 +00:00
*/
SoundPlayer: Start working on a GUI sound player application This can play anything that AWavLoader can load (so obviously only WAV files at the moment.) It works by having a timer that wakes up every 100ms and tries to send a sample buffer to the AudioServer. If our server-side queue is full then we wait until the next timer iteration and try again. We display the most recently enqueued sample buffer in a nice little widget that just plots the samples in green-on-black. :^)
2019-09-04 18:18:41 +00:00
#pragma once
SoundPlayer: Fix inconsistencies and code duplication This is a first pass at refactoring SoundPlayer so that the View widget is decoupled from the player itself. In doing so, this fixed a couple of issues, including possibly inconsistent states (e.g. player could be paused and stopped at the same time). With the change, Player actually controls the show, and calls methods overriden by its subclasses to perform actions, such as update the Seek bar; the hard work of massaging the raw data is done by the Player class, so subclasses don't need to reimplement any of these things. This also removes some copies of playlist management code that happened to be copied+pasted inside callbacks of buttons -- it now lives inside a neatly packaged Playlist class, and the Player only asks for the next song to play. In addition, the menu bar has been slightly rearranged.
2021-09-30 04:55:42 +00:00
#include "VisualizationWidget.h"
LibGUI: Remove leading G from filenames
2020-02-06 19:33:02 +00:00
#include <LibGUI/Frame.h>
SoundPlayer: Start working on a GUI sound player application This can play anything that AWavLoader can load (so obviously only WAV files at the moment.) It works by having a timer that wakes up every 100ms and tries to send a sample buffer to the AudioServer. If our server-side queue is full then we wait until the next timer iteration and try again. We display the most recently enqueued sample buffer in a nice little widget that just plots the samples in green-on-black. :^)
2019-09-04 18:18:41 +00:00
SoundPlayer: Fix inconsistencies and code duplication This is a first pass at refactoring SoundPlayer so that the View widget is decoupled from the player itself. In doing so, this fixed a couple of issues, including possibly inconsistent states (e.g. player could be paused and stopped at the same time). With the change, Player actually controls the show, and calls methods overriden by its subclasses to perform actions, such as update the Seek bar; the hard work of massaging the raw data is done by the Player class, so subclasses don't need to reimplement any of these things. This also removes some copies of playlist management code that happened to be copied+pasted inside callbacks of buttons -- it now lives inside a neatly packaged Playlist class, and the Player only asks for the next song to play. In addition, the menu bar has been slightly rearranged.
2021-09-30 04:55:42 +00:00
class SampleWidget final : public VisualizationWidget {
SoundPlayer: Start working on a GUI sound player application This can play anything that AWavLoader can load (so obviously only WAV files at the moment.) It works by having a timer that wakes up every 100ms and tries to send a sample buffer to the AudioServer. If our server-side queue is full then we wait until the next timer iteration and try again. We display the most recently enqueued sample buffer in a nice little widget that just plots the samples in green-on-black. :^)
2019-09-04 18:18:41 +00:00
C_OBJECT(SampleWidget)
public:
Applications: Use default constructors/destructors https://isocpp.github.io/CppCoreGuidelines/CppCoreGuidelines#cother-other-default-operation-rules "The compiler is more likely to get the default semantics right and you cannot implement these functions better than the compiler."
2022-02-10 19:28:48 +00:00
virtual ~SampleWidget() override = default;
SoundPlayer: Start working on a GUI sound player application This can play anything that AWavLoader can load (so obviously only WAV files at the moment.) It works by having a timer that wakes up every 100ms and tries to send a sample buffer to the AudioServer. If our server-side queue is full then we wait until the next timer iteration and try again. We display the most recently enqueued sample buffer in a nice little widget that just plots the samples in green-on-black. :^)
2019-09-04 18:18:41 +00:00
private:
SoundPlayer: Auto refresh visualization widgets Visualization widgets should only have to tell how many samples they need per frame and have a render method which receives all data relevant to draw the next frame.
2022-01-09 21:46:06 +00:00
SampleWidget();
LibAudio+LibDSP: Switch samples to 32-bit float instead of 64-bit float This has been overkill from the start, and it has been bugging me for a long time. With this change, we're probably a bit slower on most platforms but save huge amounts of space with all in-memory sample datastructures.
2022-05-06 20:14:16 +00:00
virtual void render(GUI::PaintEvent&, FixedArray<float> const& samples) override;
SoundPlayer: Start working on a GUI sound player application This can play anything that AWavLoader can load (so obviously only WAV files at the moment.) It works by having a timer that wakes up every 100ms and tries to send a sample buffer to the AudioServer. If our server-side queue is full then we wait until the next timer iteration and try again. We display the most recently enqueued sample buffer in a nice little widget that just plots the samples in green-on-black. :^)
2019-09-04 18:18:41 +00:00
};
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