impeller::compiler::CompilerBackend Struct Reference

#include <compiler_backend.h>

Public Types
enum class	Type {   kMSL ,   kGLSL ,   kGLSLVulkan ,   kSkSL }
enum class	ExtendedResourceIndex {   kPrimary ,   kSecondary }
using	MSLCompiler = std::shared_ptr< spirv_cross::CompilerMSL >
using	GLSLCompiler = std::shared_ptr< spirv_cross::CompilerGLSL >
using	SkSLCompiler = std::shared_ptr< CompilerSkSL >
using	Compiler = std::variant< MSLCompiler, GLSLCompiler, SkSLCompiler >

Public Member Functions
	CompilerBackend (MSLCompiler compiler)
	CompilerBackend (GLSLCompiler compiler)
	CompilerBackend (SkSLCompiler compiler)
	CompilerBackend (Type type, Compiler compiler)
	CompilerBackend ()
	~CompilerBackend ()
Type	GetType () const
const spirv_cross::Compiler *	operator-> () const
spirv_cross::Compiler *	GetCompiler ()
	operator bool () const
uint32_t	GetExtendedMSLResourceBinding (ExtendedResourceIndex index, spirv_cross::ID id) const
const spirv_cross::Compiler *	GetCompiler () const

Detailed Description

Definition at line 19 of file compiler_backend.h.

Member Typedef Documentation

Compiler

using impeller::compiler::CompilerBackend::Compiler = std::variant<MSLCompiler, GLSLCompiler, SkSLCompiler>

Definition at line 23 of file compiler_backend.h.

GLSLCompiler

using impeller::compiler::CompilerBackend::GLSLCompiler = std::shared_ptr<spirv_cross::CompilerGLSL>

Definition at line 21 of file compiler_backend.h.

MSLCompiler

using impeller::compiler::CompilerBackend::MSLCompiler = std::shared_ptr<spirv_cross::CompilerMSL>

Definition at line 20 of file compiler_backend.h.

SkSLCompiler

using impeller::compiler::CompilerBackend::SkSLCompiler = std::shared_ptr<CompilerSkSL>

Definition at line 22 of file compiler_backend.h.

Member Enumeration Documentation

ExtendedResourceIndex

enum class impeller::compiler::CompilerBackend::ExtendedResourceIndex

strong

Enumerator
kPrimary
kSecondary

Definition at line 52 of file compiler_backend.h.

                                   {
    kPrimary,
    kSecondary,
  };

Type

enum class impeller::compiler::CompilerBackend::Type

strong

Enumerator
kMSL
kGLSL
kGLSLVulkan
kSkSL

Definition at line 25 of file compiler_backend.h.

                  {
    kMSL,
    kGLSL,
    kGLSLVulkan,
    kSkSL,
  };

Constructor & Destructor Documentation

CompilerBackend() [1/5]

impeller::compiler::CompilerBackend::CompilerBackend ( MSLCompiler  compiler )

explicit

Definition at line 12 of file compiler_backend.cc.

    : CompilerBackend(Type::kMSL, compiler) {}

CompilerBackend() [2/5]

impeller::compiler::CompilerBackend::CompilerBackend ( GLSLCompiler  compiler )

explicit

Definition at line 15 of file compiler_backend.cc.

    : CompilerBackend(compiler->get_common_options().vulkan_semantics
                          ? Type::kGLSLVulkan
                          : Type::kGLSL,
                      compiler) {}

CompilerBackend() [3/5]

impeller::compiler::CompilerBackend::CompilerBackend ( SkSLCompiler  compiler )

explicit

Definition at line 21 of file compiler_backend.cc.

    : CompilerBackend(Type::kSkSL, compiler) {}

CompilerBackend() [4/5]

impeller::compiler::CompilerBackend::CompilerBackend	(	Type	type,
		Compiler	compiler
	)

Definition at line 26 of file compiler_backend.cc.

    : type_(type), compiler_(std::move(compiler)) {};

CompilerBackend() [5/5]

impeller::compiler::CompilerBackend::CompilerBackend ( )

default

~CompilerBackend()

impeller::compiler::CompilerBackend::~CompilerBackend ( )

default

Member Function Documentation

GetCompiler() [1/2]

spirv_cross::Compiler * impeller::compiler::CompilerBackend::GetCompiler

(

)

Definition at line 70 of file compiler_backend.cc.

                                                  {
  if (auto* msl = std::get_if<MSLCompiler>(&compiler_)) {
    return msl->get();
  }
  if (auto* glsl = std::get_if<GLSLCompiler>(&compiler_)) {
    return glsl->get();
  }
  if (auto* sksl = std::get_if<SkSLCompiler>(&compiler_)) {
    return sksl->get();
  }
  return nullptr;
}

Referenced by impeller::compiler::CreateCompiler(), and operator->().

GetCompiler() [2/2]

const spirv_cross::Compiler * impeller::compiler::CompilerBackend::GetCompiler

(

)

const

Definition at line 54 of file compiler_backend.cc.

                                                              {
  if (auto compiler = GetGLSLCompiler()) {
    return compiler;
  }
 
  if (auto compiler = GetMSLCompiler()) {
    return compiler;
  }
 
  if (auto compiler = GetSkSLCompiler()) {
    return compiler;
  }
 
  return nullptr;
}

GetExtendedMSLResourceBinding()

uint32_t impeller::compiler::CompilerBackend::GetExtendedMSLResourceBinding	(	ExtendedResourceIndex	index,
		spirv_cross::ID	id
	)		const

Definition at line 35 of file compiler_backend.cc.

                            {
  if (auto compiler = GetMSLCompiler()) {
    switch (index) {
      case ExtendedResourceIndex::kPrimary:
        return compiler->get_automatic_msl_resource_binding(id);
      case ExtendedResourceIndex::kSecondary:
        return compiler->get_automatic_msl_resource_binding_secondary(id);
        break;
    }
  }
  if (auto compiler = GetGLSLCompiler()) {
    return compiler->get_decoration(id, spv::Decoration::DecorationBinding);
  }
  const auto kOOBIndex = static_cast<uint32_t>(-1);
  return kOOBIndex;
}

References kPrimary, and kSecondary.

GetType()

CompilerBackend::Type impeller::compiler::CompilerBackend::GetType

(

)

const

Definition at line 108 of file compiler_backend.cc.

                                                   {
  return type_;
}

operator bool()

impeller::compiler::CompilerBackend::operator bool ( ) const

explicit

Definition at line 104 of file compiler_backend.cc.

                                     {
  return !!GetCompiler();
}

operator->()

const spirv_cross::Compiler * impeller::compiler::CompilerBackend::operator->

(

)

const

Definition at line 31 of file compiler_backend.cc.

                                                             {
  return GetCompiler();
}

References GetCompiler().

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The documentation for this struct was generated from the following files:

• impeller/compiler/compiler_backend.h
• impeller/compiler/compiler_backend.cc