#include <device_buffer_gles.h>

Inheritance diagram for impeller::DeviceBufferGLES:

Public Types
enum	BindingType { BindingType::kArrayBuffer, BindingType::kElementArrayBuffer }

Public Member Functions
	DeviceBufferGLES (DeviceBufferDescriptor desc, ReactorGLES::Ref reactor, std::shared_ptr< Allocation > backing_store)

	~DeviceBufferGLES () override

const uint8_t *	GetBufferData () const

void	UpdateBufferData (const std::function< void(uint8_t *, size_t length)> &update_buffer_data)

bool	BindAndUploadDataIfNecessary (BindingType type) const

Public Member Functions inherited from impeller::DeviceBuffer
virtual	~DeviceBuffer ()

bool	CopyHostBuffer (const uint8_t *source, Range source_range, size_t offset=0u)

BufferView	AsBufferView () const

virtual std::shared_ptr< Texture >	AsTexture (Allocator &allocator, const TextureDescriptor &descriptor, uint16_t row_bytes) const

std::shared_ptr< const DeviceBuffer >	GetDeviceBuffer (Allocator &allocator) const

const DeviceBufferDescriptor &	GetDeviceBufferDescriptor () const

Public Member Functions inherited from impeller::Buffer
virtual	~Buffer ()

Additional Inherited Members
Static Public Member Functions inherited from impeller::BackendCast< DeviceBufferGLES, DeviceBuffer >
static DeviceBufferGLES &	Cast (DeviceBuffer &base)

static const DeviceBufferGLES &	Cast (const DeviceBuffer &base)

static DeviceBufferGLES *	Cast (DeviceBuffer *base)

static const DeviceBufferGLES *	Cast (const DeviceBuffer *base)

Protected Member Functions inherited from impeller::DeviceBuffer
	DeviceBuffer (DeviceBufferDescriptor desc)

Protected Attributes inherited from impeller::DeviceBuffer
const DeviceBufferDescriptor	desc_

Detailed Description

Definition at line 17 of file device_buffer_gles.h.

Member Enumeration Documentation

◆ BindingType

enum impeller::DeviceBufferGLES::BindingType

strong

Enumerator
kArrayBuffer
kElementArrayBuffer

Definition at line 33 of file device_buffer_gles.h.

                          {
     kArrayBuffer,
     kElementArrayBuffer,
   };

Constructor & Destructor Documentation

◆ DeviceBufferGLES()

impeller::DeviceBufferGLES::DeviceBufferGLES	(	DeviceBufferDescriptor	desc,
		ReactorGLES::Ref	reactor,
		std::shared_ptr< Allocation >	backing_store
	)

Definition at line 17 of file device_buffer_gles.cc.

     : DeviceBuffer(desc),
       reactor_(std::move(reactor)),
       handle_(reactor_ ? reactor_->CreateHandle(HandleType::kBuffer)
                        : HandleGLES::DeadHandle()),
       backing_store_(std::move(backing_store)) {}

References impeller::kBuffer.

◆ ~DeviceBufferGLES()

impeller::DeviceBufferGLES::~DeviceBufferGLES ( )

override

Definition at line 27 of file device_buffer_gles.cc.

                                     {
   if (!handle_.IsDead()) {
     reactor_->CollectHandle(handle_);
   }
 }

References impeller::HandleGLES::IsDead().

Member Function Documentation

◆ BindAndUploadDataIfNecessary()

bool impeller::DeviceBufferGLES::BindAndUploadDataIfNecessary ( BindingType type ) const

Definition at line 70 of file device_buffer_gles.cc.

                                                                           {
   if (!reactor_) {
     return false;
   }
  
   auto buffer = reactor_->GetGLHandle(handle_);
   if (!buffer.has_value()) {
     return false;
   }
  
   const auto target_type = ToTarget(type);
   const auto& gl = reactor_->GetProcTable();
  
   gl.BindBuffer(target_type, buffer.value());
  
   if (upload_generation_ != generation_) {
     TRACE_EVENT1("impeller", "BufferData", "Bytes",
                  std::to_string(backing_store_->GetLength()).c_str());
     gl.BufferData(target_type, backing_store_->GetLength(),
                   backing_store_->GetBuffer(), GL_STATIC_DRAW);
     upload_generation_ = generation_;
   }
  
   return true;
 }

References impeller::ToTarget().

◆ GetBufferData()

const uint8_t * impeller::DeviceBufferGLES::GetBufferData ( ) const

Definition at line 109 of file device_buffer_gles.cc.

                                                      {
   return backing_store_->GetBuffer();
 }

◆ UpdateBufferData()

void impeller::DeviceBufferGLES::UpdateBufferData ( const std::function< void(uint8_t *, size_t length)> & update_buffer_data )

Definition at line 113 of file device_buffer_gles.cc.

                             {
   if (update_buffer_data) {
     update_buffer_data(backing_store_->GetBuffer(),
                        backing_store_->GetLength());
     ++generation_;
   }
 }

Referenced by impeller::BlitCopyTextureToBufferCommandGLES::Encode().

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

impeller/renderer/backend/gles/device_buffer_gles.h
impeller/renderer/backend/gles/device_buffer_gles.cc

Public Types

Public Member Functions

Additional Inherited Members