| 1 | /* |
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| 2 | SPDX-FileCopyrightText: 2014 Aleix Pol Gonzalez <aleixpol@blue-systems.com> |
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| 3 | |
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| 4 | SPDX-License-Identifier: LGPL-2.0-or-later |
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| 5 | */ |
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| 6 | |
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| 7 | #include "imagetexturescache.h" |
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| 8 | #include <QSGTexture> |
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| 9 | |
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| 10 | typedef QHash<qint64, QHash<QWindow *, QWeakPointer<QSGTexture>>> TexturesCache; |
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| 11 | |
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| 12 | class ImageTexturesCachePrivate |
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| 13 | { |
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| 14 | public: |
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| 15 | TexturesCache cache; |
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| 16 | }; |
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| 17 | |
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| 18 | ImageTexturesCache::ImageTexturesCache() |
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| 19 | : d(new ImageTexturesCachePrivate) |
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| 20 | { |
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| 21 | } |
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| 22 | |
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| 23 | ImageTexturesCache::~ImageTexturesCache() |
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| 24 | { |
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| 25 | } |
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| 26 | |
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| 27 | QSharedPointer<QSGTexture> ImageTexturesCache::loadTexture(QQuickWindow *window, const QImage &image, QQuickWindow::CreateTextureOptions options) |
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| 28 | { |
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| 29 | qint64 id = image.cacheKey(); |
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| 30 | QSharedPointer<QSGTexture> texture = d->cache.value(key: id).value(key: window).toStrongRef(); |
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| 31 | |
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| 32 | if (!texture) { |
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| 33 | auto cleanAndDelete = [this, window, id](QSGTexture *texture) { |
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| 34 | QHash<QWindow *, QWeakPointer<QSGTexture>> &textures = (d->cache)[id]; |
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| 35 | textures.remove(key: window); |
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| 36 | if (textures.isEmpty()) { |
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| 37 | d->cache.remove(key: id); |
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| 38 | } |
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| 39 | delete texture; |
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| 40 | }; |
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| 41 | texture = QSharedPointer<QSGTexture>(window->createTextureFromImage(image, options), cleanAndDelete); |
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| 42 | (d->cache)[id][window] = texture.toWeakRef(); |
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| 43 | } |
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| 44 | |
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| 45 | // if we have a cache in an atlas but our request cannot use an atlassed texture |
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| 46 | // create a new texture and use that |
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| 47 | // don't use removedFromAtlas() as that requires keeping a reference to the non atlased version |
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| 48 | if (!(options & QQuickWindow::TextureCanUseAtlas) && texture->isAtlasTexture()) { |
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| 49 | texture = QSharedPointer<QSGTexture>(window->createTextureFromImage(image, options)); |
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| 50 | } |
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| 51 | |
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| 52 | return texture; |
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| 53 | } |
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| 54 | |
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| 55 | QSharedPointer<QSGTexture> ImageTexturesCache::loadTexture(QQuickWindow *window, const QImage &image) |
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| 56 | { |
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| 57 | return loadTexture(window, image, options: QQuickWindow::CreateTextureOptions()); |
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| 58 | } |
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| 59 | |
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