[webkit-changes] [WebKit/WebKit] 030158: [WebGPU] Initial WGSL support for texture_external

[Tadeu Zagallo]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 030158c424b9bb4b9a9df1b3982a419393990435
      https://github.com/WebKit/WebKit/commit/030158c424b9bb4b9a9df1b3982a419393990435
  Author: Tadeu Zagallo <tzagallo at apple.com>
  Date:   2023-05-17 (Wed, 17 May 2023)

  Changed paths:
    M Source/WebGPU/WGSL/Constraints.cpp
    M Source/WebGPU/WGSL/GlobalVariableRewriter.cpp
    M Source/WebGPU/WGSL/Metal/MetalFunctionWriter.cpp
    M Source/WebGPU/WGSL/TypeCheck.cpp
    M Source/WebGPU/WGSL/TypeStore.cpp
    M Source/WebGPU/WGSL/TypeStore.h
    M Source/WebGPU/WGSL/Types.h
    M Source/WebGPU/WGSL/generator/main.rb

  Log Message:
  -----------
  [WebGPU] Initial WGSL support for texture_external
https://bugs.webkit.org/show_bug.cgi?id=256721
rdar://109270814

Reviewed by Mike Wyrzykowski.

Add a new builtin type to represent `texture_external`, keep track of whether the
shader being compile uses external textures and emit a structure to represent it
in Metal if necessary.

* Source/WebGPU/WGSL/Constraints.cpp:
(WGSL::satisfies):
(WGSL::satisfyOrPromote):
* Source/WebGPU/WGSL/GlobalVariableRewriter.cpp:
(WGSL::RewriteGlobalVariables::usesOverride):
(WGSL::RewriteGlobalVariables::insertStructs):
* Source/WebGPU/WGSL/Metal/MetalFunctionWriter.cpp:
(WGSL::Metal::FunctionDefinitionWriter::write):
(WGSL::Metal::FunctionDefinitionWriter::visit):
* Source/WebGPU/WGSL/TypeCheck.cpp:
(WGSL::TypeChecker::TypeChecker):
* Source/WebGPU/WGSL/TypeStore.cpp:
(WGSL::TypeStore::TypeStore):
* Source/WebGPU/WGSL/TypeStore.h:
(WGSL::TypeStore::textureExternalType const):
* Source/WebGPU/WGSL/Types.h:
* Source/WebGPU/WGSL/WGSLShaderModule.h:
(WGSL::ShaderModule::ShaderModule):
(WGSL::ShaderModule::usesExternalTextures const):
(WGSL::ShaderModule::setUsesExternalTextures):
* Source/WebGPU/WGSL/generator/main.rb:

Canonical link: https://commits.webkit.org/264138@main