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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /dom/canvas/CanvasImageCache.h | |
parent | Initial commit. (diff) | |
download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip |
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/canvas/CanvasImageCache.h')
-rw-r--r-- | dom/canvas/CanvasImageCache.h | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/dom/canvas/CanvasImageCache.h b/dom/canvas/CanvasImageCache.h new file mode 100644 index 0000000000..58486c5a8d --- /dev/null +++ b/dom/canvas/CanvasImageCache.h @@ -0,0 +1,62 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +#ifndef CANVASIMAGECACHE_H_ +#define CANVASIMAGECACHE_H_ + +#include "mozilla/RefPtr.h" +#include "nsSize.h" + +namespace mozilla { +namespace dom { +class Element; +class HTMLCanvasElement; +} // namespace dom +namespace gfx { +class DrawTarget; +class SourceSurface; +} // namespace gfx +} // namespace mozilla +class imgIContainer; + +namespace mozilla { + +class CanvasImageCache { + using SourceSurface = mozilla::gfx::SourceSurface; + + public: + /** + * Notify that image element aImage was drawn to aCanvas element + * using the first frame of aRequest's image. The data for the surface is + * in aSurface, and the image size is in aSize. aIntrinsicSize is the size + * the surface is intended to be rendered at. + */ + static void NotifyDrawImage(dom::Element* aImage, + dom::HTMLCanvasElement* aCanvas, + gfx::DrawTarget* aTarget, SourceSurface* aSource, + const gfx::IntSize& aSize, + const gfx::IntSize& aIntrinsicSize); + + /** + * Check whether aImage has recently been drawn any canvas. If we return + * a non-null surface, then the same image was recently drawn into a canvas. + */ + static SourceSurface* LookupAllCanvas(dom::Element* aImage, + gfx::DrawTarget* aTarget); + + /** + * Like the top above, but restricts the lookup to only aCanvas. This is + * required for CORS security. + */ + static SourceSurface* LookupCanvas(dom::Element* aImage, + dom::HTMLCanvasElement* aCanvas, + gfx::DrawTarget* aTarget, + gfx::IntSize* aSizeOut, + gfx::IntSize* aIntrinsicSizeOut); +}; + +} // namespace mozilla + +#endif /* CANVASIMAGECACHE_H_ */ |