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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /dom/canvas/CanvasImageCache.h
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/canvas/CanvasImageCache.h')
-rw-r--r--dom/canvas/CanvasImageCache.h62
1 files changed, 62 insertions, 0 deletions
diff --git a/dom/canvas/CanvasImageCache.h b/dom/canvas/CanvasImageCache.h
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+/* -*- 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_ */