impeller::Allocation Class Reference

#include <allocation.h>

Inheritance diagram for impeller::Allocation:

Public Member Functions
	Allocation ()
	~Allocation ()
uint8_t *	GetBuffer () const
size_t	GetLength () const
size_t	GetReservedLength () const
bool	Truncate (size_t length, bool npot=true)

Static Public Member Functions
static uint32_t	NextPowerOfTwoSize (uint32_t x)

Detailed Description

Definition at line 15 of file allocation.h.

Constructor & Destructor Documentation

Allocation()

impeller::Allocation::Allocation ( )

default

~Allocation()

impeller::Allocation::~Allocation

(

)

Definition at line 17 of file allocation.cc.

                        {
  ::free(buffer_);
}

Member Function Documentation

GetBuffer()

uint8_t * impeller::Allocation::GetBuffer

(

)

const

Definition at line 21 of file allocation.cc.

                                     {
  return buffer_;
}

Referenced by impeller::HostBuffer::Emplace(), impeller::ProcTableGLES::GetProgramInfoLogString(), impeller::ArchiveStatement::ReadValue(), and impeller::ArchiveStatement::WriteValue().

GetLength()

size_t impeller::Allocation::GetLength

(

)

const

Definition at line 25 of file allocation.cc.

                                   {
  return length_;
}

Referenced by impeller::HostBuffer::Emplace(), and impeller::ArchiveStatement::WriteValue().

GetReservedLength()

size_t impeller::Allocation::GetReservedLength

(

)

const

Definition at line 29 of file allocation.cc.

                                           {
  return reserved_;
}

Referenced by impeller::HostBuffer::GetSize().

NextPowerOfTwoSize()

uint32_t impeller::Allocation::NextPowerOfTwoSize ( uint32_t  x )

static

Definition at line 42 of file allocation.cc.

                                                  {
  if (x == 0) {
    return 1;
  }
 
  --x;
 
  x |= x >> 1;
  x |= x >> 2;
  x |= x >> 4;
  x |= x >> 8;
  x |= x >> 16;
 
  return x + 1;
}

Referenced by impeller::scene::Skin::GetJointsTexture(), and impeller::OptimumAtlasSizeForFontGlyphPairs().

Truncate()

bool impeller::Allocation::Truncate	(	size_t	length,
		bool	npot = true
	)

Definition at line 33 of file allocation.cc.

                                                  {
  const auto reserved = npot ? ReserveNPOT(length) : Reserve(length);
  if (!reserved) {
    return false;
  }
  length_ = length;
  return true;
}

Referenced by impeller::HostBuffer::Emplace(), impeller::ProcTableGLES::GetProgramInfoLogString(), impeller::ArchiveStatement::ReadValue(), and impeller::HostBuffer::Reset().

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

• impeller/base/allocation.h
• impeller/base/allocation.cc