[webkit-changes] [WebKit/WebKit] 2ba4ec: HDR data is clipped in AVIF images

[Said Abou-Hallawa]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 2ba4ecb0408c03ab5abe7896df68492a784ebeff
      https://github.com/WebKit/WebKit/commit/2ba4ecb0408c03ab5abe7896df68492a784ebeff
  Author: Said Abou-Hallawa <said at apple.com>
  Date:   2023-02-18 (Sat, 18 Feb 2023)

  Changed paths:
    A LayoutTests/platform/ios/fast/canvas/canvas-drawImage-hdr-video-expected.txt
    M Source/WebCore/platform/graphics/NativeImage.cpp
    M Source/WebCore/platform/graphics/cairo/NativeImageCairo.cpp
    M Source/WebCore/platform/graphics/cg/NativeImageCG.cpp

  Log Message:
  -----------
  HDR data is clipped in AVIF images
https://bugs.webkit.org/show_bug.cgi?id=245858
rdar://100879401

Reviewed by Simon Fraser.

This implements a temporary fix for rendering images with HDR data on macOS. The
system libraries on macOS BigSur and Ventura do a smooth conversion for the HDR
to SDR if the destination is a CGBitmapContext. This workaround will be used to
fix this problem by drawing the HDR image to a temporary local CGBitmapContext
before drawing it to the destination context.

* LayoutTests/platform/ios/fast/canvas/canvas-drawImage-hdr-video-expected.txt: Added.
* Source/WebCore/platform/graphics/NativeImage.cpp:
(WebCore::NativeImage::draw): Deleted.
* Source/WebCore/platform/graphics/cairo/NativeImageCairo.cpp:
(WebCore::NativeImage::draw):
* Source/WebCore/platform/graphics/cg/NativeImageCG.cpp:
(WebCore::NativeImage::draw):

Canonical link: https://commits.webkit.org/260512@main