[webkit-changes] [WebKit/WebKit] 922f8f: TextureMapper: Calculate zFar and zNear for the pr...

[Fujii Hironori]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 922f8f09f0ca28f6ace19c16c2b7a9a7989d5d2f
      https://github.com/WebKit/WebKit/commit/922f8f09f0ca28f6ace19c16c2b7a9a7989d5d2f
  Author: Fujii Hironori <Hironori.Fujii at sony.com>
  Date:   2022-09-26 (Mon, 26 Sep 2022)

  Changed paths:
    M Source/WebCore/platform/graphics/texmap/TextureMapper.h
    M Source/WebCore/platform/graphics/texmap/TextureMapperGL.cpp
    M Source/WebCore/platform/graphics/texmap/TextureMapperGL.h
    M Source/WebCore/platform/graphics/texmap/TextureMapperLayer.cpp
    M Source/WebCore/platform/graphics/texmap/TextureMapperLayer.h

  Log Message:
  -----------
  TextureMapper: Calculate zFar and zNear for the projection matrix
https://bugs.webkit.org/show_bug.cgi?id=244564

Reviewed by Darin Adler.

TextureMapper was using fixed zFar and zNear values, (-99999,
9999999). These were too big for 16 bits depth buffer on Linux.
<https://bugs.webkit.org/show_bug.cgi?id=244526#c2>

Changed TextureMapperLayer::computeTransformsRecursive to calculate
zFar and zNear.

* LayoutTests/platform/glib/TestExpectations:
Unmarked imported/w3c/web-platform-tests/css/css-transforms/perspective-split-by-zero-w.html
* Source/WebCore/platform/graphics/texmap/TextureMapper.h:
(WebCore::TextureMapper::setDepthRange):
* Source/WebCore/platform/graphics/texmap/TextureMapperGL.cpp:
(WebCore::createProjectionMatrix):
(WebCore::TextureMapperGL::bindDefaultSurface):
(WebCore::TextureMapperGL::bindSurface):
(WebCore::TextureMapperGL::setDepthRange):
* Source/WebCore/platform/graphics/texmap/TextureMapperGL.h:
* Source/WebCore/platform/graphics/texmap/TextureMapperLayer.cpp:
(WebCore::TextureMapperComputeTransformData::updateDepthRange):
(WebCore::TextureMapperLayer::computeTransformsRecursive):
(WebCore::TextureMapperLayer::paint):
* Source/WebCore/platform/graphics/texmap/TextureMapperLayer.h:

Canonical link: https://commits.webkit.org/254897@main