fix: remove preview image overlay from video player and restore clean black background (v3.6.5)

android/app/src/main/AndroidManifest.xml

@@ -5,7 +5,8 @@
     <application
         android:label="Prisma"
         android:name="${applicationName}"
-        android:icon="@mipmap/ic_launcher">
+        android:icon="@mipmap/ic_launcher"
+        android:largeHeap="true">
         <activity
             android:name=".MainActivity"
             android:exported="true"

lib/app/changelog.dart

@@ -1,4 +1,42 @@
 const prismaChangelog = [
+  PrismaChange(
+    version: '3.6.5',
+    title: 'Исправление наложения превью на видеоплеер',
+    bullets: [
+      'Устранение наложения превью-картинки на воспроизводимое видео: убран фоновый слой постера под видеоплеером и восстановлен классический черный бэкграунд для правильного отображения границ и леттербоксинга видео любого формата.',
+      'Чистый рендеринг видео в карточках ленты: предпросмотр видео в ленте также изолирован от просвечивания подложки.',
+    ],
+  ),
+  PrismaChange(
+    version: '3.6.4',
+    title: 'Полное исправление воспроизведения видео на ПК (устранение синего экрана)',
+    bullets: [
+      'Программный рендеринг (S/W) по умолчанию для ПК: на десктопных платформах отключен проблемный OpenGL FBO мост аппаратного ускорения, вызывавший синий экран из-за отсутствия или конфликтов драйверов VAAPI/VDPAU в Linux/AppImage.',
+      'Переключатель декодера H/W / S/W в плеере: на верхней панели управления видеоплеером добавлена кнопка быстрого переключения между аппаратным (H/W) и программным (S/W) декодированием на лету.',
+      'Отображение постера-превью: под видеоплеером теперь отображается превью-постер на время буферизации, исключая появление пустых областей.',
+      'Безопасное превью в ленте: предпросмотр видео в карточках постов на ПК также переведен на надежный программный рендерер.',
+    ],
+  ),
+  PrismaChange(
+    version: '3.6.3',
+    title: 'Горизонтальный скролл колесиком мыши на ПК и исправление синего экрана в видеоплеере',
+    bullets: [
+      'Горизонтальная прокрутка колесиком мыши в настройках: верхняя панель категорий настроек теперь плавно прокручивается колесиком мыши строго при наведении курсора.',
+      'Горизонтальная прокрутка колесиком мыши в авторах: полоса любимых авторов и лента их медиа теперь поддерживают быструю прокрутку колесиком мыши при наведении курсора.',
+      'Устранение «синего экрана» в видеоплеере на ПК: исправлена нативная инициализация MediaKit перед запуском Flutter-движка и настроен оптимальный режим аппаратного ускорения для десктопных платформ.',
+    ],
+  ),
+  PrismaChange(
+    version: '3.6.2',
+    title: 'Комплексная оптимизация памяти на телефоне и ПК, полное отключение зума колесиком',
+    bullets: [
+      'Полное отключение масштабирования колесиком мыши: перехвачен внутренний обработчик PointerScrollEvent в интерактивном вьюере, что навсегда исключило нежелательный зум при прокрутке.',
+      'Предотвращение вылетов на смартфонах (OOM): включен флаг android:largeHeap="true", расширяющий доступный лимит оперативной памяти процесса до 512–1024 МБ.',
+      'Ограничение аппетита кэша изображений: глобальный ImageCache в Flutter ограничен безопасным лимитом в 180 МБ и 120 изображений (вместо неограниченного роста до 1 ГБ+), неактивные растры своевременно выгружаются сборщиком мусора.',
+      'Оптимизация декодирования тяжелых артов: полноразмерные изображения с экстремальным разрешением (до 10K+) теперь безопасно декодируются с ограничением memCacheWidth под экран устройства, снижая расход RAM на 80–90%.',
+      'Оптимизация сетки и миниатюр: карточки ленты изолированы в RepaintBoundary для гладкого 120 FPS скролла без паразитных перерисовок, а всем каруселям, аватаркам и мозаикам заданы строгие границы кэширования.',
+    ],
+  ),
   PrismaChange(
     version: '3.6.1',
     title: 'Плавная боковая панель без лагов и отключение зума колесиком',

lib/features/artists/presentation/artists_screen.dart

@@ -2,6 +2,7 @@ import 'dart:async';
 import 'dart:convert';
 import 'dart:ui';
 import 'package:cached_network_image/cached_network_image.dart';
+import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
 import 'package:go_router/go_router.dart';
@@ -1328,7 +1329,7 @@ class _FavoriteArtistsModalState extends State<_FavoriteArtistsModal> {
   }
 }
 
-class _FavoriteArtistsSection extends ConsumerWidget {
+class _FavoriteArtistsSection extends StatefulWidget {
   const _FavoriteArtistsSection({
     required this.favorites,
     required this.selectedKey,
@@ -1344,8 +1345,23 @@ class _FavoriteArtistsSection extends ConsumerWidget {
   final ValueChanged<FavoriteArtistItem> onRemoveFavorite;
 
   @override
-  Widget build(BuildContext context, WidgetRef ref) {
+  State<_FavoriteArtistsSection> createState() =>
-    if (favorites.isEmpty) {
+      _FavoriteArtistsSectionState();
+}
+
+class _FavoriteArtistsSectionState extends State<_FavoriteArtistsSection> {
+  final ScrollController _scrollController = ScrollController();
+  bool _isHovered = false;
+
+  @override
+  void dispose() {
+    _scrollController.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    if (widget.favorites.isEmpty) {
       return Padding(
         padding: const EdgeInsets.fromLTRB(16, 4, 16, 8),
         child: _ArtistsLiquidCard(
@@ -1368,9 +1384,9 @@ class _FavoriteArtistsSection extends ConsumerWidget {
       );
     }
 
-    final selected = favorites.firstWhere(
+    final selected = widget.favorites.firstWhere(
-      (f) => f.key == selectedKey,
+      (f) => f.key == widget.selectedKey,
-      orElse: () => favorites.first,
+      orElse: () => widget.favorites.first,
     );
 
     return Padding(
@@ -1385,14 +1401,14 @@ class _FavoriteArtistsSection extends ConsumerWidget {
                 const Icon(Icons.star_rounded, color: Colors.amber, size: 20),
                 const SizedBox(width: 6),
                 Text(
-                  'Любимые авторы (${favorites.length})',
+                  'Любимые авторы (${widget.favorites.length})',
                   style: Theme.of(context).textTheme.titleSmall?.copyWith(
                         fontWeight: FontWeight.bold,
                       ),
                 ),
                 const Spacer(),
                 TextButton(
-                  onPressed: () => onOpenArtist(selected),
+                  onPressed: () => widget.onOpenArtist(selected),
                   style: TextButton.styleFrom(
                     visualDensity: VisualDensity.compact,
                     padding: const EdgeInsets.symmetric(horizontal: 8),
@@ -1409,111 +1425,136 @@ class _FavoriteArtistsSection extends ConsumerWidget {
               ],
             ),
             const SizedBox(height: 8),
-            SizedBox(
+            MouseRegion(
-              height: 88,
+              onEnter: (_) => _isHovered = true,
-              child: ListView.separated(
+              onExit: (_) => _isHovered = false,
-                padding: const EdgeInsets.symmetric(horizontal: 4, vertical: 4),
+              child: Listener(
-                scrollDirection: Axis.horizontal,
+                onPointerSignal: (event) {
-                itemCount: favorites.length,
+                  if (!_isHovered ||
-                separatorBuilder: (_, __) => const SizedBox(width: 10),
+                      event is! PointerScrollEvent ||
-                itemBuilder: (context, index) {
+                      !_scrollController.hasClients) {
-                  final fav = favorites[index];
+                    return;
-                  final isSelected = fav.key == selected.key;
+                  }
-                  final sColor = _serviceColor(fav.service);
+                  final delta = event.scrollDelta.dy != 0
-
+                      ? event.scrollDelta.dy
-                  return InkWell(
+                      : event.scrollDelta.dx;
-                    borderRadius: BorderRadius.circular(16),
+                  if (delta == 0) return;
-                    onTap: () => onSelect(fav),
+                  final target = (_scrollController.offset + delta * 1.5).clamp(
-                    child: AnimatedContainer(
+                    0.0,
-                      duration: const Duration(milliseconds: 200),
+                    _scrollController.position.maxScrollExtent,
-                      padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 6),
-                      decoration: BoxDecoration(
-                        color: isSelected
-                            ? Theme.of(context)
-                                .colorScheme
-                                .primaryContainer
-                                .withValues(alpha: 0.45)
-                            : Colors.transparent,
-                        borderRadius: BorderRadius.circular(16),
-                        border: Border.all(
-                          color: isSelected
-                              ? Theme.of(context).colorScheme.primary
-                              : Colors.transparent,
-                          width: 1.5,
-                        ),
-                        boxShadow: isSelected
-                            ? [
-                                BoxShadow(
-                                  color: Theme.of(context)
-                                      .colorScheme
-                                      .primary
-                                      .withValues(alpha: 0.25),
-                                  blurRadius: 8,
-                                ),
-                              ]
-                            : null,
-                      ),
-                      child: Column(
-                        mainAxisAlignment: MainAxisAlignment.center,
-                        children: [
-                          Container(
-                            width: 44,
-                            height: 44,
-                            decoration: BoxDecoration(
-                              borderRadius: BorderRadius.circular(14),
-                              border: Border.all(
-                                color: isSelected
-                                    ? Theme.of(context).colorScheme.primary
-                                    : sColor.withValues(alpha: 0.4),
-                                width: 1.2,
-                              ),
-                            ),
-                            child: ClipRRect(
-                              borderRadius: BorderRadius.circular(13),
-                              child: fav.avatarUrl != null &&
-                                      fav.avatarUrl!.isNotEmpty
-                                  ? CachedNetworkImage(
-                                      imageUrl: fav.avatarUrl!,
-                                      fit: BoxFit.cover,
-                                      placeholder: (_, __) => const Icon(
-                                          Icons.person_rounded,
-                                          size: 20),
-                                      errorWidget: (_, __, ___) => const Icon(
-                                          Icons.person_rounded,
-                                          size: 20),
-                                    )
-                                  : Center(
-                                      child: Text(
-                                        fav.name.isNotEmpty
-                                            ? fav.name[0].toUpperCase()
-                                            : '?',
-                                        style: const TextStyle(
-                                            fontWeight: FontWeight.bold),
-                                      ),
-                                    ),
-                            ),
-                          ),
-                          const SizedBox(height: 4),
-                          SizedBox(
-                            width: 68,
-                            child: Text(
-                              fav.name,
-                              maxLines: 1,
-                              overflow: TextOverflow.ellipsis,
-                              textAlign: TextAlign.center,
-                              style: TextStyle(
-                                fontSize: 11,
-                                fontWeight: isSelected
-                                    ? FontWeight.bold
-                                    : FontWeight.normal,
-                              ),
-                            ),
-                          ),
-                        ],
-                      ),
-                    ),
                   );
+                  _scrollController.jumpTo(target);
                 },
+                child: SizedBox(
+                  height: 88,
+                  child: ListView.separated(
+                    controller: _scrollController,
+                    padding: const EdgeInsets.symmetric(horizontal: 4, vertical: 4),
+                    scrollDirection: Axis.horizontal,
+                    itemCount: widget.favorites.length,
+                    separatorBuilder: (_, __) => const SizedBox(width: 10),
+                    itemBuilder: (context, index) {
+                      final fav = widget.favorites[index];
+                      final isSelected = fav.key == selected.key;
+                      final sColor = _serviceColor(fav.service);
+
+                      return InkWell(
+                        borderRadius: BorderRadius.circular(16),
+                        onTap: () => widget.onSelect(fav),
+                        child: AnimatedContainer(
+                          duration: const Duration(milliseconds: 200),
+                          padding: const EdgeInsets.symmetric(horizontal: 8, vertical: 6),
+                          decoration: BoxDecoration(
+                            color: isSelected
+                                ? Theme.of(context)
+                                    .colorScheme
+                                    .primaryContainer
+                                    .withValues(alpha: 0.45)
+                                : Colors.transparent,
+                            borderRadius: BorderRadius.circular(16),
+                            border: Border.all(
+                              color: isSelected
+                                  ? Theme.of(context).colorScheme.primary
+                                  : Colors.transparent,
+                              width: 1.5,
+                            ),
+                            boxShadow: isSelected
+                                ? [
+                                    BoxShadow(
+                                      color: Theme.of(context)
+                                          .colorScheme
+                                          .primary
+                                          .withValues(alpha: 0.25),
+                                      blurRadius: 8,
+                                    ),
+                                  ]
+                                : null,
+                          ),
+                          child: Column(
+                            mainAxisAlignment: MainAxisAlignment.center,
+                            children: [
+                              Container(
+                                width: 44,
+                                height: 44,
+                                decoration: BoxDecoration(
+                                  borderRadius: BorderRadius.circular(14),
+                                  border: Border.all(
+                                    color: isSelected
+                                        ? Theme.of(context).colorScheme.primary
+                                        : sColor.withValues(alpha: 0.4),
+                                    width: 1.2,
+                                  ),
+                                ),
+                                child: ClipRRect(
+                                  borderRadius: BorderRadius.circular(13),
+                                  child: fav.avatarUrl != null &&
+                                          fav.avatarUrl!.isNotEmpty
+                                      ? CachedNetworkImage(
+                                          imageUrl: fav.avatarUrl!,
+                                          memCacheWidth: 120,
+                                          memCacheHeight: 120,
+                                          fit: BoxFit.cover,
+                                          placeholder: (_, __) => const Icon(
+                                              Icons.person_rounded,
+                                              size: 20),
+                                          errorWidget: (_, __, ___) => const Icon(
+                                              Icons.person_rounded,
+                                              size: 20),
+                                        )
+                                      : Center(
+                                          child: Text(
+                                            fav.name.isNotEmpty
+                                                ? fav.name[0].toUpperCase()
+                                                : '?',
+                                            style: const TextStyle(
+                                                fontWeight: FontWeight.bold),
+                                          ),
+                                        ),
+                                ),
+                              ),
+                              const SizedBox(height: 4),
+                              SizedBox(
+                                width: 68,
+                                child: Text(
+                                  fav.name,
+                                  maxLines: 1,
+                                  overflow: TextOverflow.ellipsis,
+                                  textAlign: TextAlign.center,
+                                  style: TextStyle(
+                                    fontSize: 11,
+                                    fontWeight: isSelected
+                                        ? FontWeight.bold
+                                        : FontWeight.normal,
+                                  ),
+                                ),
+                              ),
+                            ],
+                          ),
+                        ),
+                      );
+                    },
+                  ),
+                ),
               ),
             ),
             const SizedBox(height: 6),
@@ -1525,18 +1566,34 @@ class _FavoriteArtistsSection extends ConsumerWidget {
   }
 }
 
-class _FavoriteArtistMediaStrip extends ConsumerWidget {
+class _FavoriteArtistMediaStrip extends ConsumerStatefulWidget {
   const _FavoriteArtistMediaStrip({required this.artist});
 
   final FavoriteArtistItem artist;
 
   @override
-  Widget build(BuildContext context, WidgetRef ref) {
+  ConsumerState<_FavoriteArtistMediaStrip> createState() =>
+      _FavoriteArtistMediaStripState();
+}
+
+class _FavoriteArtistMediaStripState
+    extends ConsumerState<_FavoriteArtistMediaStrip> {
+  final ScrollController _scrollController = ScrollController();
+  bool _isHovered = false;
+
+  @override
+  void dispose() {
+    _scrollController.dispose();
+    super.dispose();
+  }
+
+  @override
+  Widget build(BuildContext context) {
     final query = ArtistWorkQuery(
-      providerId: artist.providerId,
+      providerId: widget.artist.providerId,
-      service: artist.service,
+      service: widget.artist.service,
-      artistId: artist.id,
+      artistId: widget.artist.id,
-      artistName: artist.name,
+      artistName: widget.artist.name,
     );
     final asyncPosts = ref.watch(artistPostsProvider(query));
 
@@ -1564,76 +1621,101 @@ class _FavoriteArtistMediaStrip extends ConsumerWidget {
               ),
             );
           }
-          return SizedBox(
+          return MouseRegion(
-            height: 96,
+            onEnter: (_) => _isHovered = true,
-            child: ListView.separated(
+            onExit: (_) => _isHovered = false,
-              scrollDirection: Axis.horizontal,
+            child: Listener(
-              itemCount: posts.length.clamp(0, 15),
+              onPointerSignal: (event) {
-              separatorBuilder: (_, __) => const SizedBox(width: 8),
+                if (!_isHovered ||
-              itemBuilder: (context, index) {
+                    event is! PointerScrollEvent ||
-                final post = posts[index];
+                    !_scrollController.hasClients) {
-                final isVideo = MediaUrlSelector.isVideo(post);
+                  return;
-                return InkWell(
+                }
-                  borderRadius: BorderRadius.circular(14),
+                final delta = event.scrollDelta.dy != 0
-                  onTap: () => AppNavigator.openPost(
+                    ? event.scrollDelta.dy
-                    context,
+                    : event.scrollDelta.dx;
-                    post: post,
+                if (delta == 0) return;
-                    postsList: posts,
+                final target = (_scrollController.offset + delta * 1.5).clamp(
-                  ),
+                  0.0,
-                  child: Container(
+                  _scrollController.position.maxScrollExtent,
-                    decoration: BoxDecoration(
-                      borderRadius: BorderRadius.circular(14),
-                      border: Border.all(
-                        color: Colors.white.withValues(alpha: 0.15),
-                        width: 1.0,
-                      ),
-                    ),
-                    child: ClipRRect(
-                      borderRadius: BorderRadius.circular(13),
-                      child: Stack(
-                        children: [
-                          SizedBox(
-                            width: 96,
-                            height: 96,
-                            child: CachedNetworkImage(
-                              imageUrl: post.previewUrl.isNotEmpty
-                                  ? post.previewUrl
-                                  : post.sampleUrl,
-                              fit: BoxFit.cover,
-                              placeholder: (_, __) => ColoredBox(
-                                color: Theme.of(context)
-                                    .colorScheme
-                                    .surfaceContainerHighest,
-                              ),
-                              errorWidget: (_, __, ___) => ColoredBox(
-                                color: Theme.of(context)
-                                    .colorScheme
-                                    .surfaceContainerHighest,
-                                child: const Icon(Icons.broken_image_rounded,
-                                    size: 24),
-                              ),
-                            ),
-                          ),
-                          if (isVideo)
-                            Positioned(
-                              bottom: 6,
-                              right: 6,
-                              child: Container(
-                                padding: const EdgeInsets.all(4),
-                                decoration: BoxDecoration(
-                                  color: Colors.black.withValues(alpha: 0.7),
-                                  shape: BoxShape.circle,
-                                ),
-                                child: const Icon(Icons.play_arrow_rounded,
-                                    color: Colors.white, size: 14),
-                              ),
-                            ),
-                        ],
-                      ),
-                    ),
-                  ),
                 );
+                _scrollController.jumpTo(target);
               },
+              child: SizedBox(
+                height: 96,
+                child: ListView.separated(
+                  controller: _scrollController,
+                  scrollDirection: Axis.horizontal,
+                  itemCount: posts.length.clamp(0, 15),
+                  separatorBuilder: (_, __) => const SizedBox(width: 8),
+                  itemBuilder: (context, index) {
+                    final post = posts[index];
+                    final isVideo = MediaUrlSelector.isVideo(post);
+                    return InkWell(
+                      borderRadius: BorderRadius.circular(14),
+                      onTap: () => AppNavigator.openPost(
+                        context,
+                        post: post,
+                        postsList: posts,
+                      ),
+                      child: Container(
+                        decoration: BoxDecoration(
+                          borderRadius: BorderRadius.circular(14),
+                          border: Border.all(
+                            color: Colors.white.withValues(alpha: 0.15),
+                            width: 1.0,
+                          ),
+                        ),
+                        child: ClipRRect(
+                          borderRadius: BorderRadius.circular(13),
+                          child: Stack(
+                            children: [
+                              SizedBox(
+                                width: 96,
+                                height: 96,
+                                child: CachedNetworkImage(
+                                  imageUrl: post.previewUrl.isNotEmpty
+                                      ? post.previewUrl
+                                      : post.sampleUrl,
+                                  memCacheWidth: 200,
+                                  memCacheHeight: 200,
+                                  fit: BoxFit.cover,
+                                  placeholder: (_, __) => ColoredBox(
+                                    color: Theme.of(context)
+                                        .colorScheme
+                                        .surfaceContainerHighest,
+                                  ),
+                                  errorWidget: (_, __, ___) => ColoredBox(
+                                    color: Theme.of(context)
+                                        .colorScheme
+                                        .surfaceContainerHighest,
+                                    child: const Icon(Icons.broken_image_rounded,
+                                        size: 24),
+                                  ),
+                                ),
+                              ),
+                              if (isVideo)
+                                Positioned(
+                                  bottom: 6,
+                                  right: 6,
+                                  child: Container(
+                                    padding: const EdgeInsets.all(4),
+                                    decoration: BoxDecoration(
+                                      color: Colors.black.withValues(alpha: 0.7),
+                                      shape: BoxShape.circle,
+                                    ),
+                                    child: const Icon(Icons.play_arrow_rounded,
+                                        color: Colors.white, size: 14),
+                                  ),
+                                ),
+                            ],
+                          ),
+                        ),
+                      ),
+                    );
+                  },
+                ),
+              ),
             ),
           );
         },
@@ -1706,6 +1788,8 @@ class _ArtistAvatar extends StatelessWidget {
             ? fallback
             : CachedNetworkImage(
                 imageUrl: artist.avatarUrl!,
+                memCacheWidth: 140,
+                memCacheHeight: 140,
                 fit: BoxFit.cover,
                 placeholder: (_, __) => fallback,
                 errorWidget: (_, __, ___) => fallback,

lib/features/collections/presentation/collections_screen.dart

@@ -314,6 +314,8 @@ class _CollectionCard extends ConsumerWidget {
     if (urls.length == 1) {
       return CachedNetworkImage(
         imageUrl: urls[0],
+        memCacheWidth: 260,
+        memCacheHeight: 260,
         fit: BoxFit.cover,
         placeholder: (_, __) => Container(color: scheme.surfaceContainerHighest),
         errorWidget: (_, __, ___) => Container(
@@ -333,6 +335,8 @@ class _CollectionCard extends ConsumerWidget {
           if (i < urls.length)
             CachedNetworkImage(
               imageUrl: urls[i],
+              memCacheWidth: 200,
+              memCacheHeight: 200,
               fit: BoxFit.cover,
               placeholder: (_, __) =>
                   Container(color: scheme.surfaceContainerHighest),

lib/features/favorites/presentation/favorites_screen.dart

@@ -1225,6 +1225,8 @@ class _ArtistCard extends StatelessWidget {
                                   ),
                                   child: CachedNetworkImage(
                                     imageUrl: url,
+                                    memCacheWidth: 128,
+                                    memCacheHeight: 128,
                                     fit: BoxFit.cover,
                                     placeholder: (_, __) => Container(
                                       color: scheme.surfaceContainerHighest,

lib/features/post/presentation/post_details_screen.dart

@@ -1155,6 +1155,8 @@ class _NeighborStrip extends StatelessWidget {
                 imageUrl: post.previewUrl.isNotEmpty
                     ? post.previewUrl
                     : post.sampleUrl,
+                memCacheWidth: 160,
+                memCacheHeight: 160,
                 fit: BoxFit.cover,
                 errorWidget: (_, __, ___) =>
                     const Center(child: Icon(Icons.broken_image_rounded)),

lib/features/post/presentation/widgets/post_media_viewer.dart

@@ -4,6 +4,7 @@ import 'dart:io';
 import 'package:cached_network_image/cached_network_image.dart';
 import 'package:dio/dio.dart';
 import 'package:flutter/foundation.dart';
+import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:media_kit/media_kit.dart';
@@ -77,6 +78,8 @@ class _PostMediaViewerState extends State<PostMediaViewer>
   String? _videoError;
   bool _retriedFormatError = false;
   bool _softwareDecodingFallback = false;
+  late bool _useSoftwareDecoding =
+      Platform.isLinux || Platform.isWindows || Platform.isMacOS;
   Timer? _hideTimer;
   StreamSubscription<String>? _errorSubscription;
   StreamSubscription<Duration>? _positionSubscription;
@@ -108,6 +111,8 @@ class _PostMediaViewerState extends State<PostMediaViewer>
       _videoError = null;
       _retriedFormatError = false;
       _softwareDecodingFallback = false;
+      _useSoftwareDecoding =
+          Platform.isLinux || Platform.isWindows || Platform.isMacOS;
       _imageUrls = _buildImageUrls(widget.post);
       _videoUrls = _buildVideoUrls(widget.post);
       if (_isPlayableMedia(widget.post) && _videoUrls.isNotEmpty) {
@@ -225,6 +230,8 @@ class _PostMediaViewerState extends State<PostMediaViewer>
               aspectRatio: widget.post.width > 0 && widget.post.height > 0
                   ? widget.post.width / widget.post.height
                   : 16 / 9,
+              isSoftwareDecoding: _useSoftwareDecoding,
+              onToggleDecoder: _toggleDecoderMode,
               controlsVisible: _controlsVisible,
               coverVideo: _coverVideo,
               muted: _muted,
@@ -316,10 +323,16 @@ class _PostMediaViewerState extends State<PostMediaViewer>
         ),
       );
     } else {
+      final mq = MediaQuery.maybeOf(context);
+      final dpr = mq?.devicePixelRatio ?? 1.5;
+      final screenWidth = mq?.size.width ?? 1280;
+      final maxCacheWidth =
+          (screenWidth * dpr * 1.5).round().clamp(1080, 2560);
       image = CachedNetworkImage(
         key: ValueKey(url),
         imageUrl: url,
         httpHeaders: headers,
+        memCacheWidth: maxCacheWidth,
         fit: BoxFit.contain,
         placeholder: (context, url) =>
             const Center(child: CircularProgressIndicator()),
@@ -437,11 +450,12 @@ class _PostMediaViewerState extends State<PostMediaViewer>
   void _initializeVideo() {
     MediaKit.ensureInitialized();
     _player = Player();
+    final bool enableHw = !_useSoftwareDecoding && !_softwareDecodingFallback;
     _controller = VideoController(
       _player!,
       configuration: VideoControllerConfiguration(
-        enableHardwareAcceleration: !_softwareDecodingFallback,
+        enableHardwareAcceleration: enableHw,
-        hwdec: _softwareDecodingFallback ? 'no' : 'auto-safe',
+        hwdec: enableHw ? (Platform.isAndroid ? 'auto-safe' : 'auto') : 'no',
       ),
     );
     _applyVolume();
@@ -516,6 +530,7 @@ class _PostMediaViewerState extends State<PostMediaViewer>
             lower.contains('failed to recognize file format'))) {
       _retriedFormatError = true;
       _softwareDecodingFallback = true;
+      _useSoftwareDecoding = true;
       _disposeVideo();
       await Future<void>.delayed(const Duration(milliseconds: 250));
       if (mounted) {
@@ -533,6 +548,7 @@ class _PostMediaViewerState extends State<PostMediaViewer>
     _videoIndex = 0;
     _retriedFormatError = false;
     _softwareDecodingFallback = true;
+    _useSoftwareDecoding = true;
     _disposeVideo();
     await Future<void>.delayed(const Duration(milliseconds: 150));
     if (mounted) {
@@ -540,6 +556,26 @@ class _PostMediaViewerState extends State<PostMediaViewer>
     }
   }
 
+  void _toggleDecoderMode() {
+    setState(() {
+      _useSoftwareDecoding = !_useSoftwareDecoding;
+      _softwareDecodingFallback = false;
+      _retriedFormatError = false;
+    });
+    _disposeVideo();
+    _initializeVideo();
+    ScaffoldMessenger.maybeOf(context)?.showSnackBar(
+      SnackBar(
+        content: Text(
+          _useSoftwareDecoding
+              ? 'Включено программное декодирование (S/W)'
+              : 'Включено аппаратное декодирование (H/W)',
+        ),
+        duration: const Duration(seconds: 2),
+      ),
+    );
+  }
+
   void _disposeVideo() {
     _hideTimer?.cancel();
     _errorSubscription?.cancel();
@@ -681,6 +717,8 @@ class _PostMediaViewerState extends State<PostMediaViewer>
           halfVolume: _halfVolume,
           coverVideo: _coverVideo,
           initialVolume: _currentVolume,
+          isSoftwareDecoding: _useSoftwareDecoding,
+          onToggleDecoder: _toggleDecoderMode,
           errorMessage: _videoError,
           onRetry: _retryVideo,
           onChanged: (snapshot) {
@@ -877,6 +915,8 @@ class _FullscreenVideoPage extends StatefulWidget {
     required this.halfVolume,
     required this.coverVideo,
     this.initialVolume = 100.0,
+    required this.isSoftwareDecoding,
+    required this.onToggleDecoder,
     required this.errorMessage,
     required this.onRetry,
     required this.onChanged,
@@ -891,6 +931,8 @@ class _FullscreenVideoPage extends StatefulWidget {
   final bool halfVolume;
   final bool coverVideo;
   final double initialVolume;
+  final bool isSoftwareDecoding;
+  final VoidCallback onToggleDecoder;
   final String? errorMessage;
   final VoidCallback onRetry;
   final ValueChanged<VideoPlaybackSnapshot> onChanged;
@@ -1015,6 +1057,8 @@ class _FullscreenVideoPageState extends State<_FullscreenVideoPage> {
                 player: widget.player,
                 controller: widget.controller,
                 aspectRatio: widget.aspectRatio,
+                isSoftwareDecoding: widget.isSoftwareDecoding,
+                onToggleDecoder: widget.onToggleDecoder,
                 controlsVisible: _controlsVisible,
                 coverVideo: _coverVideo,
                 muted: _muted,
@@ -1566,6 +1610,8 @@ class _VideoSurface extends StatefulWidget {
     required this.player,
     required this.controller,
     required this.aspectRatio,
+    required this.isSoftwareDecoding,
+    required this.onToggleDecoder,
     required this.controlsVisible,
     required this.coverVideo,
     required this.muted,
@@ -1590,6 +1636,8 @@ class _VideoSurface extends StatefulWidget {
   final Player player;
   final VideoController controller;
   final double aspectRatio;
+  final bool isSoftwareDecoding;
+  final VoidCallback onToggleDecoder;
   final bool controlsVisible;
   final bool coverVideo;
   final bool muted;
@@ -1835,6 +1883,8 @@ class _VideoSurfaceState extends State<_VideoSurface> {
                   fullscreen: widget.fullscreen,
                   isLocked: _isLocked,
                   isLandscape: widget.isLandscape,
+                  isSoftwareDecoding: widget.isSoftwareDecoding,
+                  onToggleDecoder: widget.onToggleDecoder,
                   onToggleOrientation: widget.onToggleOrientation,
                   onToggleLock: () => setState(() => _isLocked = !_isLocked),
                   onToggleFit: widget.onToggleFit,
@@ -2205,6 +2255,7 @@ class _ZoomableImageState extends State<_ZoomableImage> {
                     transformationController: _controller,
                     minScale: 1,
                     maxScale: 6,
+                    scaleFactor: 1000000.0,
                     boundaryMargin: const EdgeInsets.all(160),
                     panEnabled: _zoomed,
                     scaleEnabled: true,
@@ -2221,7 +2272,15 @@ class _ZoomableImageState extends State<_ZoomableImage> {
                       if (mounted) setState(() => _zoomed = nextZoomed);
                       _setLocked(nextZoomed || _pointerCount >= 2);
                     },
-                    child: child,
+                    child: Listener(
+                      onPointerSignal: (event) {
+                        if (event is PointerScrollEvent) {
+                          GestureBinding.instance.pointerSignalResolver
+                              .register(event, (_) {});
+                        }
+                      },
+                      child: child,
+                    ),
                   ),
                 ),
               );
@@ -2637,6 +2696,8 @@ class _VideoControls extends StatefulWidget {
     required this.fullscreen,
     required this.isLocked,
     this.isLandscape,
+    required this.isSoftwareDecoding,
+    required this.onToggleDecoder,
     this.onToggleOrientation,
     required this.onToggleLock,
     required this.onToggleFit,
@@ -2656,6 +2717,8 @@ class _VideoControls extends StatefulWidget {
   final bool fullscreen;
   final bool isLocked;
   final bool? isLandscape;
+  final bool isSoftwareDecoding;
+  final VoidCallback onToggleDecoder;
   final VoidCallback? onToggleOrientation;
   final VoidCallback onToggleLock;
   final VoidCallback onToggleFit;
@@ -2755,6 +2818,17 @@ class _VideoControlsState extends State<_VideoControls> {
                         onPressed: widget.onToggleLock,
                       ),
                       const Spacer(),
+                      _RoundControlButton(
+                        tooltip: widget.isSoftwareDecoding
+                            ? 'Декодер: S/W (программный). Нажмите для переключения на H/W'
+                            : 'Декодер: H/W (аппаратный). Нажмите для переключения на S/W',
+                        selected: !widget.isSoftwareDecoding,
+                        icon: widget.isSoftwareDecoding
+                            ? Icons.memory_rounded
+                            : Icons.speed_rounded,
+                        onPressed: widget.onToggleDecoder,
+                      ),
+                      const SizedBox(width: 8),
                       _SpeedBadgeButton(
                         currentRate: currentRate,
                         onSelected: (newRate) => widget.player.setRate(newRate),

lib/features/settings/presentation/settings_screen.dart

@@ -1,6 +1,7 @@
 import 'dart:io';
 import 'dart:ui';
 
+import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart' hide appBuildNumber;
 import 'package:flutter_riverpod/flutter_riverpod.dart';
@@ -1439,7 +1440,7 @@ class _SettingsIconBadge extends StatelessWidget {
   }
 }
 
-class _CategoryQuickNav extends StatelessWidget {
+class _CategoryQuickNav extends StatefulWidget {
   const _CategoryQuickNav({
     required this.categories,
     required this.onSelect,
@@ -1449,103 +1450,143 @@ class _CategoryQuickNav extends StatelessWidget {
       categories;
   final ValueChanged<GlobalKey> onSelect;
 
+  @override
+  State<_CategoryQuickNav> createState() => _CategoryQuickNavState();
+}
+
+class _CategoryQuickNavState extends State<_CategoryQuickNav> {
+  final ScrollController _scrollController = ScrollController();
+  bool _isHovered = false;
+
+  @override
+  void dispose() {
+    _scrollController.dispose();
+    super.dispose();
+  }
+
   @override
   Widget build(BuildContext context) {
     final theme = Theme.of(context);
     final isDark = theme.brightness == Brightness.dark;
 
-    return SizedBox(
+    return MouseRegion(
-      height: 44,
+      onEnter: (_) => _isHovered = true,
-      child: ListView.separated(
+      onExit: (_) => _isHovered = false,
-        padding: const EdgeInsets.symmetric(horizontal: 16),
+      child: Listener(
-        scrollDirection: Axis.horizontal,
+        onPointerSignal: (event) {
-        itemCount: categories.length,
+          if (!_isHovered ||
-        separatorBuilder: (_, __) => const SizedBox(width: 8),
+              event is! PointerScrollEvent ||
-        itemBuilder: (context, index) {
+              !_scrollController.hasClients) {
-          final cat = categories[index];
+            return;
-          return Container(
+          }
-            decoration: BoxDecoration(
+          final delta = event.scrollDelta.dy != 0
-              borderRadius: BorderRadius.circular(22),
+              ? event.scrollDelta.dy
-              boxShadow: [
+              : event.scrollDelta.dx;
-                BoxShadow(
+          if (delta == 0) return;
-                  color: isDark
+          final target = (_scrollController.offset + delta * 1.5).clamp(
-                      ? Colors.black.withValues(alpha: 0.25)
+            0.0,
-                      : cat.color.withValues(alpha: 0.12),
+            _scrollController.position.maxScrollExtent,
-                  blurRadius: 8,
+          );
-                  offset: const Offset(0, 2.5),
+          _scrollController.jumpTo(target);
+        },
+        child: SizedBox(
+          height: 44,
+          child: ListView.separated(
+            controller: _scrollController,
+            padding: const EdgeInsets.symmetric(horizontal: 16),
+            scrollDirection: Axis.horizontal,
+            itemCount: widget.categories.length,
+            separatorBuilder: (_, __) => const SizedBox(width: 8),
+            itemBuilder: (context, index) {
+              final cat = widget.categories[index];
+              return Container(
+                decoration: BoxDecoration(
+                  borderRadius: BorderRadius.circular(22),
+                  boxShadow: [
+                    BoxShadow(
+                      color: isDark
+                          ? Colors.black.withValues(alpha: 0.25)
+                          : cat.color.withValues(alpha: 0.12),
+                      blurRadius: 8,
+                      offset: const Offset(0, 2.5),
+                    ),
+                  ],
                 ),
-              ],
+                child: ClipRRect(
-            ),
+                  borderRadius: BorderRadius.circular(22),
-            child: ClipRRect(
+                  child: BackdropFilter(
-              borderRadius: BorderRadius.circular(22),
+                    filter: ImageFilter.blur(sigmaX: 16, sigmaY: 16),
-              child: BackdropFilter(
+                    child: Material(
-                filter: ImageFilter.blur(sigmaX: 16, sigmaY: 16),
+                      color: isDark
-                child: Material(
+                          ? theme.colorScheme.surfaceContainerHigh
-                  color: isDark
+                              .withValues(alpha: 0.60)
-                      ? theme.colorScheme.surfaceContainerHigh.withValues(alpha: 0.60)
+                          : Colors.white.withValues(alpha: 0.82),
-                      : Colors.white.withValues(alpha: 0.82),
+                      child: InkWell(
-                  child: InkWell(
-                    borderRadius: BorderRadius.circular(22),
-                    onTap: () {
-                      HapticFeedback.selectionClick();
-                      onSelect(cat.key);
-                    },
-                    child: Container(
-                      padding: const EdgeInsets.symmetric(horizontal: 12, vertical: 7),
-                      decoration: BoxDecoration(
                         borderRadius: BorderRadius.circular(22),
-                        border: Border.all(
+                        onTap: () {
-                          color: isDark
+                          HapticFeedback.selectionClick();
-                              ? Colors.white.withValues(alpha: 0.18)
+                          widget.onSelect(cat.key);
-                              : Colors.white.withValues(alpha: 0.85),
+                        },
-                          width: 1.1,
+                        child: Container(
-                        ),
+                          padding: const EdgeInsets.symmetric(
-                      ),
+                              horizontal: 12, vertical: 7),
-                      child: Row(
+                          decoration: BoxDecoration(
-                        mainAxisSize: MainAxisSize.min,
+                            borderRadius: BorderRadius.circular(22),
-                        children: [
+                            border: Border.all(
-                          Container(
+                              color: isDark
-                            width: 24,
+                                  ? Colors.white.withValues(alpha: 0.18)
-                            height: 24,
+                                  : Colors.white.withValues(alpha: 0.85),
-                            decoration: BoxDecoration(
+                              width: 1.1,
-                              gradient: LinearGradient(
+                            ),
-                                begin: Alignment.topLeft,
+                          ),
-                                end: Alignment.bottomRight,
+                          child: Row(
-                                colors: [
+                            mainAxisSize: MainAxisSize.min,
-                                  cat.color,
+                            children: [
-                                  cat.color.withValues(alpha: 0.82),
+                              Container(
-                                ],
+                                width: 24,
-                              ),
+                                height: 24,
-                              borderRadius: BorderRadius.circular(7),
+                                decoration: BoxDecoration(
-                              boxShadow: [
+                                  gradient: LinearGradient(
-                                BoxShadow(
+                                    begin: Alignment.topLeft,
-                                  color: cat.color.withValues(alpha: 0.35),
+                                    end: Alignment.bottomRight,
-                                  blurRadius: 5,
+                                    colors: [
-                                  offset: const Offset(0, 1.5),
+                                      cat.color,
+                                      cat.color.withValues(alpha: 0.82),
+                                    ],
+                                  ),
+                                  borderRadius: BorderRadius.circular(7),
+                                  boxShadow: [
+                                    BoxShadow(
+                                      color: cat.color.withValues(alpha: 0.35),
+                                      blurRadius: 5,
+                                      offset: const Offset(0, 1.5),
+                                    ),
+                                  ],
                                 ),
-                              ],
+                                child: Center(
-                            ),
+                                  child: Icon(cat.icon,
-                            child: Center(
+                                      size: 14, color: Colors.white),
-                              child: Icon(cat.icon, size: 14, color: Colors.white),
+                                ),
-                            ),
+                              ),
+                              const SizedBox(width: 8),
+                              Text(
+                                cat.label,
+                                style: theme.textTheme.labelLarge?.copyWith(
+                                  fontWeight: FontWeight.w600,
+                                  letterSpacing: -0.2,
+                                ),
+                              ),
+                            ],
                           ),
-                          const SizedBox(width: 8),
+                        ),
-                          Text(
-                            cat.label,
-                            style: theme.textTheme.labelLarge?.copyWith(
-                              fontWeight: FontWeight.w600,
-                              letterSpacing: -0.2,
-                            ),
-                          ),
-                        ],
                       ),
                     ),
                   ),
                 ),
-              ),
+              );
-            ),
+            },
-          );
+          ),
-        },
+        ),
       ),
     );
   }

lib/features/viewed/presentation/viewed_screen.dart

@@ -427,6 +427,8 @@ class _ViewedPostTile extends StatelessWidget {
                                   )
                                 : CachedNetworkImage(
                                     imageUrl: image,
+                                    memCacheWidth: 320,
+                                    memCacheHeight: 320,
                                     fit: BoxFit.cover,
                                     placeholder: (_, __) => Container(
                                       color: scheme.surfaceContainerHighest,

lib/main.dart

@@ -1,9 +1,14 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_riverpod/flutter_riverpod.dart';
+import 'package:media_kit/media_kit.dart';
 
 import 'app/app.dart';
 
 void main() {
   WidgetsFlutterBinding.ensureInitialized();
+  MediaKit.ensureInitialized();
+  // Optimize image cache to prevent memory bloat and OOM crashes
+  PaintingBinding.instance.imageCache.maximumSizeBytes = 180 * 1024 * 1024; // 180 MB
+  PaintingBinding.instance.imageCache.maximumSize = 120; // 120 images
   runApp(const ProviderScope(child: GelRuleApp()));
 }

lib/shared/widgets/app_shell.dart

@@ -580,7 +580,7 @@ class _DesktopShellState extends State<_DesktopShell>
                                                         ),
                                                       ),
                                                       child: Text(
-                                                        'v3.6.1',
+                                                        'v3.6.5',
                                                         style: TextStyle(
                                                           fontSize: 10,
                                                           fontWeight:

lib/shared/widgets/post_card.dart

@@ -1,5 +1,6 @@
 import 'dart:async';
 import 'dart:collection';
+import 'dart:io';
 
 import 'package:cached_network_image/cached_network_image.dart';
 import 'package:flutter/material.dart';
@@ -232,7 +233,7 @@ class _PostCardState extends ConsumerState<PostCard>
                         }
                         final dpr = MediaQuery.devicePixelRatioOf(context);
                         final cacheWidth =
-                            (constraints.maxWidth * dpr).round().clamp(320, 1800);
+                            (constraints.maxWidth * dpr).round().clamp(280, 960);
                         final headers = _headersFor(post);
                         final videoUrls = MediaUrlSelector.video(post);
                         if (!mobile &&
@@ -590,7 +591,15 @@ class _FeedVideoPreviewState extends State<_FeedVideoPreview> {
     super.initState();
     MediaKit.ensureInitialized();
     _player = Player();
-    _controller = VideoController(_player);
+    final isDesktop =
+        Platform.isLinux || Platform.isWindows || Platform.isMacOS;
+    _controller = VideoController(
+      _player,
+      configuration: VideoControllerConfiguration(
+        enableHardwareAcceleration: !isDesktop,
+        hwdec: isDesktop ? 'no' : 'auto-safe',
+      ),
+    );
     _player.stream.error.listen((_) {
       if (mounted) setState(() => _failed = true);
     });

lib/shared/widgets/post_masonry_grid.dart

@@ -68,24 +68,26 @@ class PostMasonryGrid extends StatelessWidget {
     final spacing = mobile ? 8.0 : 12.0;
 
     Widget buildCard(Post post) {
-      return PostCard(
+      return RepaintBoundary(
-        post: post,
+        child: PostCard(
-        blurExplicit: blurExplicit && !nsfwEnabled,
+          post: post,
-        showBadges: showBadges,
+          blurExplicit: blurExplicit && !nsfwEnabled,
-        isFavorite: favoriteKeys.contains(post.cacheKey),
+          showBadges: showBadges,
-        isViewed: viewedKeys.contains(post.cacheKey),
+          isFavorite: favoriteKeys.contains(post.cacheKey),
-        isDownloaded: downloadedKeys.contains(post.cacheKey),
+          isViewed: viewedKeys.contains(post.cacheKey),
-        mediaQualityMode: mediaQualityMode,
+          isDownloaded: downloadedKeys.contains(post.cacheKey),
-        onOpen: () => onOpen(post),
+          mediaQualityMode: mediaQualityMode,
-        onFavorite: () => onFavorite(post),
+          onOpen: () => onOpen(post),
-        onPreview: onPreview == null ? null : () => onPreview!(post),
+          onFavorite: () => onFavorite(post),
-        onHide: onHide == null ? null : () => onHide!(post),
+          onPreview: onPreview == null ? null : () => onPreview!(post),
-        selectionMode: selectionMode,
+          onHide: onHide == null ? null : () => onHide!(post),
-        selected: selectedKeys.contains(post.cacheKey),
+          selectionMode: selectionMode,
-        onToggleSelected:
+          selected: selectedKeys.contains(post.cacheKey),
-            onToggleSelected == null ? null : () => onToggleSelected!(post),
+          onToggleSelected:
-        onAddToCollection:
+              onToggleSelected == null ? null : () => onToggleSelected!(post),
-            onAddToCollection == null ? null : () => onAddToCollection!(post),
+          onAddToCollection:
+              onAddToCollection == null ? null : () => onAddToCollection!(post),
+        ),
       );
     }
 

pubspec.yaml

@@ -1,7 +1,7 @@
 name: gel_rule_app
 description: Local backend/core layer for a Flutter booru browser app.
 publish_to: "none"
-version: 3.6.1+83
+version: 3.6.5+87
 
 environment:
   sdk: ">=3.3.0 <4.0.0"