flutter::ImageDecoder Class Reference

#include <image_decoder.h>

Inheritance diagram for flutter::ImageDecoder:

Public Types
using	ImageResult = std::function< void(sk_sp< DlImage >, std::string)>

Public Member Functions
virtual	~ImageDecoder ()
virtual void	Decode (fml::RefPtr< ImageDescriptor > descriptor, uint32_t target_width, uint32_t target_height, const ImageResult &result)=0
fml::TaskRunnerAffineWeakPtr< ImageDecoder >	GetWeakPtr () const

Static Public Member Functions
static std::unique_ptr< ImageDecoder >	Make (const Settings &settings, const TaskRunners &runners, std::shared_ptr< fml::ConcurrentTaskRunner > concurrent_task_runner, const fml::WeakPtr< IOManager > &io_manager, const std::shared_ptr< fml::SyncSwitch > &gpu_disabled_switch)

Protected Member Functions
	ImageDecoder (const TaskRunners &runners, std::shared_ptr< fml::ConcurrentTaskRunner > concurrent_task_runner, fml::WeakPtr< IOManager > io_manager)

Protected Attributes
TaskRunners	runners_
std::shared_ptr< fml::ConcurrentTaskRunner >	concurrent_task_runner_
fml::WeakPtr< IOManager >	io_manager_

Detailed Description

Definition at line 24 of file image_decoder.h.

Member Typedef Documentation

ImageResult

using flutter::ImageDecoder::ImageResult = std::function<void(sk_sp<DlImage>, std::string)>

Definition at line 35 of file image_decoder.h.

Constructor & Destructor Documentation

~ImageDecoder()

flutter::ImageDecoder::~ImageDecoder ( )

virtualdefault

ImageDecoder()

flutter::ImageDecoder::ImageDecoder ( const TaskRunners &  runners, std::shared_ptr< fml::ConcurrentTaskRunner >  concurrent_task_runner, fml::WeakPtr< IOManager >  io_manager  )

protected

Definition at line 43 of file image_decoder.cc.

    : runners_(runners),
      concurrent_task_runner_(std::move(concurrent_task_runner)),
      io_manager_(std::move(io_manager)),
      weak_factory_(this) {
  FML_DCHECK(runners_.IsValid());
  FML_DCHECK(runners_.GetUITaskRunner()->RunsTasksOnCurrentThread())
      << "The image decoder must be created & collected on the UI thread.";
}

References FML_DCHECK, flutter::TaskRunners::GetUITaskRunner(), flutter::TaskRunners::IsValid(), runners_, and fml::TaskRunner::RunsTasksOnCurrentThread().

Member Function Documentation

Decode()

virtual void flutter::ImageDecoder::Decode ( fml::RefPtr< ImageDescriptor >  descriptor, uint32_t  target_width, uint32_t  target_height, const ImageResult &  result  )

pure virtual

Implemented in flutter::ImageDecoderImpeller, and flutter::ImageDecoderSkia.

GetWeakPtr()

fml::TaskRunnerAffineWeakPtr< ImageDecoder > flutter::ImageDecoder::GetWeakPtr

(

)

const

Definition at line 58 of file image_decoder.cc.

                                                                        {
  return weak_factory_.GetWeakPtr();
}

Make()

std::unique_ptr< ImageDecoder > flutter::ImageDecoder::Make ( const Settings &  settings, const TaskRunners &  runners, std::shared_ptr< fml::ConcurrentTaskRunner >  concurrent_task_runner, const fml::WeakPtr< IOManager > &  io_manager, const std::shared_ptr< fml::SyncSwitch > &  gpu_disabled_switch  )

static

Definition at line 15 of file image_decoder.cc.

                                                             {
#if IMPELLER_SUPPORTS_RENDERING
  if (settings.enable_impeller) {
    return std::make_unique<ImageDecoderImpeller>(
        runners,                            //
        std::move(concurrent_task_runner),  //
        io_manager,                         //
        settings.enable_wide_gamut,         //
        gpu_disabled_switch);
  }
#endif  // IMPELLER_SUPPORTS_RENDERING
#if !SLIMPELLER
  return std::make_unique<ImageDecoderSkia>(
      runners,                            //
      std::move(concurrent_task_runner),  //
      io_manager                          //
  );
#else   //  !SLIMPELLER
  FML_LOG(FATAL) << "Could not setup an image decoder.";
  return nullptr;
#endif  //  !SLIMPELLER
}

References flutter::Settings::enable_impeller, flutter::Settings::enable_wide_gamut, and FML_LOG.

Referenced by flutter::testing::TEST_F(), flutter::testing::TEST_F(), flutter::testing::TEST_F(), and flutter::testing::TEST_F().

Member Data Documentation

concurrent_task_runner_

std::shared_ptr<fml::ConcurrentTaskRunner> flutter::ImageDecoder::concurrent_task_runner_

protected

Definition at line 51 of file image_decoder.h.

Referenced by flutter::ImageDecoderSkia::Decode().

io_manager_

fml::WeakPtr<IOManager> flutter::ImageDecoder::io_manager_

protected

Definition at line 52 of file image_decoder.h.

Referenced by flutter::ImageDecoderSkia::Decode().

runners_

TaskRunners flutter::ImageDecoder::runners_

protected

Definition at line 50 of file image_decoder.h.

Referenced by flutter::ImageDecoderSkia::Decode(), ImageDecoder(), and flutter::ImageDecoderImpeller::ImageDecoderImpeller().

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

• lib/ui/painting/image_decoder.h
• lib/ui/painting/image_decoder.cc