From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 21:33:14 +0200 Subject: Adding upstream version 115.7.0esr. Signed-off-by: Daniel Baumann --- dom/canvas/ImageUtils.h | 65 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) create mode 100644 dom/canvas/ImageUtils.h (limited to 'dom/canvas/ImageUtils.h') diff --git a/dom/canvas/ImageUtils.h b/dom/canvas/ImageUtils.h new file mode 100644 index 0000000000..46b391515c --- /dev/null +++ b/dom/canvas/ImageUtils.h @@ -0,0 +1,65 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim:set ts=2 sw=2 sts=2 et cindent: */ +/* 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 mozilla_dom_ImageBitmapFormatUtils_h +#define mozilla_dom_ImageBitmapFormatUtils_h + +#include + +#include "nsTArrayForwardDeclare.h" + +namespace mozilla { + +namespace layers { +class Image; +} + +class ErrorResult; + +namespace dom { + +struct ChannelPixelLayout; +enum class ImageBitmapFormat : uint8_t; + +typedef nsTArray ImagePixelLayout; + +/* + * ImageUtils is a wrapper around layers::Image. It provides three unified + * methods to all sub-classes of layers::Image, which are: + * + * (1) GetFormat() converts the image's format into ImageBitmapFormat enum. + * (2) GetBufferLength() returns the number of bytes that are used to store + * the image's underlying raw data. + * + * In theory, the functionalities of this class could be merged into the + * interface of layers::Image. However, this is designed as a isolated wrapper + * because we don't want to pollute the layers::Image's interface with methods + * that are only meaningful to the ImageBitmap. + */ +class ImageUtils { + public: + class Impl; + ImageUtils() = delete; + ImageUtils(const ImageUtils&) = delete; + ImageUtils(ImageUtils&&) = delete; + ImageUtils& operator=(const ImageUtils&) = delete; + ImageUtils& operator=(ImageUtils&&) = delete; + + explicit ImageUtils(layers::Image* aImage); + ~ImageUtils(); + + ImageBitmapFormat GetFormat() const; + + uint32_t GetBufferLength() const; + + protected: + Impl* mImpl; +}; + +} // namespace dom +} // namespace mozilla + +#endif /* mozilla_dom_ImageBitmapFormatUtils_h */ -- cgit v1.2.3