osu/osu.Game/Storyboards/Drawables/DrawableStoryboardVideo.cs

140 lines
4.1 KiB
C#

// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
// See the LICENCE file in the repository root for full licence text.
using System;
using System.IO;
using System.Linq;
using osu.Framework.Allocation;
using osu.Framework.Graphics;
using osu.Framework.Graphics.Containers;
using osu.Framework.Graphics.Textures;
using osu.Framework.Graphics.Video;
using osu.Framework.Utils;
using osuTK;
namespace osu.Game.Storyboards.Drawables
{
public partial class DrawableStoryboardVideo : CompositeDrawable
{
public readonly StoryboardVideo Video;
private DrawableVideo? drawableVideo;
public override bool RemoveWhenNotAlive => false;
public DrawableStoryboardVideo(StoryboardVideo video)
{
Video = video;
// In osu-stable, a mapper can add a scale command for a storyboard video.
// This allows scaling based on the video's absolute size.
//
// If not specified we take up the full available space.
bool useRelative = !video.Commands.Scale.Any();
RelativeSizeAxes = useRelative ? Axes.Both : Axes.None;
AutoSizeAxes = useRelative ? Axes.None : Axes.Both;
Anchor = Anchor.Centre;
Origin = Anchor.Centre;
}
[BackgroundDependencyLoader(true)]
private void load(TextureStore textureStore)
{
var stream = textureStore.GetStream(Video.Path);
if (stream == null)
return;
InternalChild = drawableVideo = new DrawableVideo(stream, false)
{
RelativeSizeAxes = RelativeSizeAxes,
FillMode = FillMode.Fill,
Anchor = Anchor.Centre,
Origin = Anchor.Centre,
Alpha = 0,
};
Video.ApplyTransforms(drawableVideo);
}
protected override void LoadComplete()
{
base.LoadComplete();
if (drawableVideo == null) return;
using (drawableVideo.BeginAbsoluteSequence(Video.StartTime))
{
Schedule(() => drawableVideo.PlaybackPosition = Time.Current - Video.StartTime);
drawableVideo.FadeIn(500);
using (drawableVideo.BeginDelayedSequence(drawableVideo.Duration - 500))
drawableVideo.FadeOut(500);
}
}
private partial class DrawableVideo : Video, IFlippable, IVectorScalable
{
private bool flipH;
public bool FlipH
{
get => flipH;
set
{
if (flipH == value)
return;
flipH = value;
Invalidate(Invalidation.MiscGeometry);
}
}
private bool flipV;
public bool FlipV
{
get => flipV;
set
{
if (flipV == value)
return;
flipV = value;
Invalidate(Invalidation.MiscGeometry);
}
}
private Vector2 vectorScale = Vector2.One;
public Vector2 VectorScale
{
get => vectorScale;
set
{
if (vectorScale == value)
return;
if (!Validation.IsFinite(value)) throw new ArgumentException($@"{nameof(VectorScale)} must be finite, but is {value}.");
vectorScale = value;
Invalidate(Invalidation.MiscGeometry);
}
}
protected override Vector2 DrawScale
=> new Vector2(FlipH ? -base.DrawScale.X : base.DrawScale.X, FlipV ? -base.DrawScale.Y : base.DrawScale.Y) * VectorScale;
public override Anchor Origin => StoryboardExtensions.AdjustOrigin(base.Origin, VectorScale, FlipH, FlipV);
public DrawableVideo(Stream stream, bool startAtCurrentTime = true)
: base(stream, startAtCurrentTime)
{
}
}
}
}