impeller::ShaderLibraryGLES Class Reference

#include <shader_library_gles.h>

Inheritance diagram for impeller::ShaderLibraryGLES:

Public Member Functions
	~ShaderLibraryGLES () override
bool	IsValid () const override
Public Member Functions inherited from impeller::ShaderLibrary
virtual	~ShaderLibrary ()

Private Member Functions
std::shared_ptr< const ShaderFunction >	GetFunction (std::string_view name, ShaderStage stage) override
void	RegisterFunction (std::string name, ShaderStage stage, std::shared_ptr< fml::Mapping > code, RegistrationCallback callback) override
void	UnregisterFunction (std::string name, ShaderStage stage) override

Friends
class	ContextGLES

Additional Inherited Members
Public Types inherited from impeller::ShaderLibrary
using	RegistrationCallback = std::function< void(bool)>
Protected Member Functions inherited from impeller::ShaderLibrary
	ShaderLibrary ()

Detailed Description

Definition at line 19 of file shader_library_gles.h.

Constructor & Destructor Documentation

~ShaderLibraryGLES()

impeller::ShaderLibraryGLES::~ShaderLibraryGLES ( )

overridedefault

Member Function Documentation

GetFunction()

std::shared_ptr< const ShaderFunction > impeller::ShaderLibraryGLES::GetFunction ( std::string_view  name, ShaderStage  stage  )

overrideprivatevirtual

Implements impeller::ShaderLibrary.

Definition at line 94 of file shader_library_gles.cc.

                       {
  ReaderLock lock(functions_mutex_);
  const auto key = ShaderKey{name, stage};
  if (auto found = functions_.find(key); found != functions_.end()) {
    return found->second;
  }
  return nullptr;
}

IsValid()

bool impeller::ShaderLibraryGLES::IsValid ( ) const

overridevirtual

Implements impeller::ShaderLibrary.

Definition at line 89 of file shader_library_gles.cc.

                                      {
  return is_valid_;
}

RegisterFunction()

void impeller::ShaderLibraryGLES::RegisterFunction ( std::string  name, ShaderStage  stage, std::shared_ptr< fml::Mapping >  code, RegistrationCallback  callback  )

overrideprivatevirtual

Reimplemented from impeller::ShaderLibrary.

Definition at line 106 of file shader_library_gles.cc.

                                                                        {
  if (!callback) {
    callback = [](auto) {};
  }
  fml::ScopedCleanupClosure auto_fail([callback]() { callback(false); });
  if (name.empty() || stage == ShaderStage::kUnknown || code == nullptr ||
      code->GetMapping() == nullptr) {
    VALIDATION_LOG << "Invalid runtime stage registration.";
    return;
  }
  const auto key = ShaderKey{name, stage};
  WriterLock lock(functions_mutex_);
  if (functions_.count(key) != 0) {
    VALIDATION_LOG << "Runtime stage named " << name
                   << " has already been registered.";
    return;
  }
  functions_[key] = std::shared_ptr<ShaderFunctionGLES>(new ShaderFunctionGLES(
      library_id_,                                 //
      stage,                                       //
      GLESShaderNameToShaderKeyName(name, stage),  //
      code                                         //
      ));
  auto_fail.Release();
  callback(true);
}

UnregisterFunction()

void impeller::ShaderLibraryGLES::UnregisterFunction ( std::string  name, ShaderStage  stage  )

overrideprivatevirtual

Implements impeller::ShaderLibrary.

Definition at line 137 of file shader_library_gles.cc.

                                                              {
  ReaderLock lock(functions_mutex_);
 
  const auto key = ShaderKey{name, stage};
 
  auto found = functions_.find(key);
  if (found == functions_.end()) {
    VALIDATION_LOG << "Library function named " << name
                   << " was not found, so it couldn't be unregistered.";
    return;
  }
 
  functions_.erase(found);
 
  return;
}

Friends And Related Symbol Documentation

ContextGLES

friend class ContextGLES

friend

Definition at line 28 of file shader_library_gles.h.

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

• impeller/renderer/backend/gles/shader_library_gles.h
• impeller/renderer/backend/gles/shader_library_gles.cc