foxyzandClaude Opus 5.5
fb2927c094
Vendored Anime4K v4.0.1 GLSL (MIT), extracted to app support once per version. Presets A/B/C/A+A/B+B/C+A in HQ and Fast per Anime4K's mpv templates, plus custom files. Shader button in the video controls (works in fullscreen), Ctrl+1..6 / Ctrl+0, live apply with read-back, failures fall back to Off with a toast. Render mode detected from mpv's GL log; warns when on the software path. Docs include the Jellyfin client section. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
75 lines
2.7 KiB
Dart
75 lines
2.7 KiB
Dart
import 'dart:io';
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import 'package:flutter/services.dart';
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import 'package:path_provider/path_provider.dart';
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import 'shader_presets.dart';
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const anime4kAssetDir = 'assets/shaders/anime4k';
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/// mpv needs real files: copies the shipped Anime4K shaders out of the
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/// asset bundle into `<supportDir>/shaders/anime4k-<version>`, once per
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/// version (a `.complete` marker is written last, so a cut-short copy is
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/// redone). Returns that directory.
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Future<Directory> extractAnime4k(
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Directory supportDir, {
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AssetBundle? bundle,
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}) async {
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final dir = Directory(
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'${supportDir.path}${Platform.pathSeparator}shaders'
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'${Platform.pathSeparator}anime4k-$anime4kVersion');
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final marker = File('${dir.path}${Platform.pathSeparator}.complete');
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final files = anime4kAllFiles;
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if (await marker.exists() &&
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files.every((f) => File(_join(dir, f)).existsSync())) {
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return dir;
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}
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await dir.create(recursive: true);
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final b = bundle ?? rootBundle;
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for (final name in [...files, 'LICENSE']) {
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final data = await b.load('$anime4kAssetDir/$name');
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await File(_join(dir, name)).writeAsBytes(
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data.buffer.asUint8List(data.offsetInBytes, data.lengthInBytes),
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flush: true);
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}
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await marker.writeAsString(anime4kVersion, flush: true);
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return dir;
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}
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/// Absolute paths of [preset]'s Anime4K files inside [dir].
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List<String> anime4kPaths(
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Directory dir, ShaderPreset preset, ShaderQuality quality) =>
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[for (final f in anime4kFiles(preset, quality)) _join(dir, f)];
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String _join(Directory dir, String name) =>
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'${dir.path}${Platform.pathSeparator}$name';
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/// Where the shipped shaders get extracted; swapped in tests.
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Future<Directory> Function() shaderSupportDir = getApplicationSupportDirectory;
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/// Absolute `glsl-shaders` entries for a choice, extracting the shipped
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/// files first when needed. Empty for [ShaderPreset.off].
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Future<List<String>> shaderPathsFor(
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ShaderPreset preset,
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ShaderQuality quality,
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List<String> custom,
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) async {
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if (preset == ShaderPreset.off) return const [];
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if (preset == ShaderPreset.custom) return [...custom];
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final dir = await extractAnime4k(await shaderSupportDir());
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return anime4kPaths(dir, preset, quality);
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}
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/// Why [paths] can't go to mpv (a missing file, or a path holding the
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/// list separator), or null when they can.
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String? shaderPathsProblem(List<String> paths, {bool? windows}) {
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final sep = shaderListSeparator(windows: windows);
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for (final p in paths) {
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final name = p.split(RegExp(r'[/\\]')).last;
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// Windows drive letters ("C:\") are fine: there the separator is ';'.
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if (p.contains(sep)) return '"$name" has "$sep" in its path';
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if (!File(p).existsSync()) return '"$name" not found';
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}
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return null;
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}
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