#include <cfx_gifcontext.h>

Inheritance diagram for fxcodec::CFX_GifContext:

Collaboration diagram for fxcodec::CFX_GifContext:

Public Member Functions
	CFX_GifContext (GifDecoder::Delegate *delegate)

	~CFX_GifContext () override

void	ReadScanline (int32_t row_num, pdfium::span< uint8_t > row_buf)

bool	GetRecordPosition (uint32_t cur_pos, int32_t left, int32_t top, int32_t width, int32_t height, int32_t pal_num, CFX_GifPalette *pal, int32_t trans_index, bool interlace)

GifDecoder::Status	ReadHeader ()

GifDecoder::Status	GetFrame ()

GifDecoder::Status	LoadFrame (size_t frame_num)

void	SetInputBuffer (RetainPtr< CFX_CodecMemory > codec_memory)

uint32_t	GetAvailInput () const

size_t	GetFrameNum () const

Public Member Functions inherited from fxcodec::ProgressiveDecoderIface::Context
virtual	~Context ()=default

Public Attributes
UnownedPtr< GifDecoder::Delegate > const	delegate_

std::vector< CFX_GifPalette >	global_palette_

uint8_t	global_palette_exp_ = 0

uint32_t	img_row_offset_ = 0

uint32_t	img_row_avail_size_ = 0

int32_t	decode_status_ = GIF_D_STATUS_SIG

std::unique_ptr< CFX_GifGraphicControlExtension >	graphic_control_extension_

std::vector< std::unique_ptr< CFX_GifImage > >	images_

std::unique_ptr< LZWDecompressor >	lzw_decompressor_

int	width_ = 0

int	height_ = 0

uint8_t	bc_index_ = 0

uint8_t	global_sort_flag_ = 0

uint8_t	global_color_resolution_ = 0

uint8_t	img_pass_num_ = 0

Protected Member Functions
bool	ReadAllOrNone (uint8_t *dest, uint32_t size)

GifDecoder::Status	ReadGifSignature ()

GifDecoder::Status	ReadLogicalScreenDescriptor ()

Protected Attributes
RetainPtr< CFX_CodecMemory >	input_buffer_

Detailed Description

Definition at line 24 of file cfx_gifcontext.h.

Constructor & Destructor Documentation

◆ CFX_GifContext()

fxcodec::CFX_GifContext::CFX_GifContext ( GifDecoder::Delegate * delegate )

explicit

Definition at line 29 of file cfx_gifcontext.cpp.

References CFX_GifContext().

Referenced by CFX_GifContext(), and fxcodec::CFX_GifContextForTest::CFX_GifContextForTest().

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◆ ~CFX_GifContext()

fxcodec::CFX_GifContext::~CFX_GifContext ( )

overridedefault

Member Function Documentation

◆ GetAvailInput()

uint32_t fxcodec::CFX_GifContext::GetAvailInput ( ) const

Definition at line 324 of file cfx_gifcontext.cpp.

Referenced by fxcodec::GifDecoder::GetAvailInput().

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◆ GetFrame()

GifDecoder::Status fxcodec::CFX_GifContext::GetFrame ( )

Definition at line 60 of file cfx_gifcontext.cpp.

References fxcodec::GifDecoder::kSuccess.

Referenced by fxcodec::GifDecoder::LoadFrameInfo().

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◆ GetFrameNum()

size_t fxcodec::CFX_GifContext::GetFrameNum ( ) const

inline

Definition at line 44 of file cfx_gifcontext.h.

◆ GetRecordPosition()

bool fxcodec::CFX_GifContext::GetRecordPosition	(	uint32_t	cur_pos,
		int32_t	left,
		int32_t	top,
		int32_t	width,
		int32_t	height,
		int32_t	pal_num,
		CFX_GifPalette *	pal,
		int32_t	trans_index,
		bool	interlace )

Definition at line 39 of file cfx_gifcontext.cpp.

Referenced by LoadFrame().

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◆ LoadFrame()

GifDecoder::Status fxcodec::CFX_GifContext::LoadFrame ( size_t frame_num )

Definition at line 158 of file cfx_gifcontext.cpp.

References CFX_GifImage::code_exp, CFX_GifImage::data_pos, decode_status_, GetRecordPosition(), CFX_GifImageInfo::height, CFX_GifImage::image_info, img_pass_num_, img_row_avail_size_, img_row_offset_, CFX_GifLocalFlags::interlace, fxcodec::GifDecoder::kError, fxcodec::LZWDecompressor::kError, fxcodec::LZWDecompressor::kInsufficientDestSize, fxcodec::GifDecoder::kSuccess, fxcodec::LZWDecompressor::kSuccess, fxcodec::GifDecoder::kUnfinished, fxcodec::LZWDecompressor::kUnfinished, CFX_GifImageInfo::left, CFX_GifImageInfo::local_flags, CFX_GifLocalFlags::local_pal, CFX_GifLocalFlags::pal_bits, ReadAllOrNone(), ReadScanline(), CFX_GifImage::row_num, CFX_GifImageInfo::top, and CFX_GifImageInfo::width.

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◆ ReadAllOrNone()

bool fxcodec::CFX_GifContext::ReadAllOrNone	(	uint8_t *	dest,
		uint32_t	size )

protected

Definition at line 332 of file cfx_gifcontext.cpp.

Referenced by LoadFrame(), ReadGifSignature(), ReadLogicalScreenDescriptor(), and fxcodec::TEST().

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◆ ReadGifSignature()

GifDecoder::Status fxcodec::CFX_GifContext::ReadGifSignature ( )

protected

Definition at line 346 of file cfx_gifcontext.cpp.

References fxcodec::GifDecoder::kError, fxcodec::GifDecoder::kSuccess, fxcodec::GifDecoder::kUnfinished, and ReadAllOrNone().

Referenced by ReadHeader(), and fxcodec::TEST().

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◆ ReadHeader()

GifDecoder::Status fxcodec::CFX_GifContext::ReadHeader ( )

Definition at line 53 of file cfx_gifcontext.cpp.

References fxcodec::GifDecoder::kSuccess, ReadGifSignature(), and ReadLogicalScreenDescriptor().

Referenced by fxcodec::GifDecoder::ReadHeader(), and fxcodec::TEST().

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◆ ReadLogicalScreenDescriptor()

GifDecoder::Status fxcodec::CFX_GifContext::ReadLogicalScreenDescriptor ( )

protected

Definition at line 359 of file cfx_gifcontext.cpp.

References CFX_GifLocalScreenDescriptor::bc_index, bc_index_, CFX_GifGlobalFlags::color_resolution, global_color_resolution_, CFX_GifLocalScreenDescriptor::global_flags, CFX_GifGlobalFlags::global_pal, global_palette_exp_, global_sort_flag_, CFX_GifLocalScreenDescriptor::height, height_, fxcodec::GifDecoder::kError, fxcodec::GifDecoder::kSuccess, fxcodec::GifDecoder::kUnfinished, CFX_GifGlobalFlags::pal_bits, ReadAllOrNone(), CFX_GifGlobalFlags::sort_flag, CFX_GifLocalScreenDescriptor::width, and width_.

Referenced by ReadHeader(), and fxcodec::TEST().

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◆ ReadScanline()

void fxcodec::CFX_GifContext::ReadScanline	(	int32_t	row_num,
		pdfium::span< uint8_t >	row_buf )

Definition at line 34 of file cfx_gifcontext.cpp.

Referenced by LoadFrame().

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◆ SetInputBuffer()

void fxcodec::CFX_GifContext::SetInputBuffer ( RetainPtr< CFX_CodecMemory > codec_memory )

Definition at line 320 of file cfx_gifcontext.cpp.

Referenced by fxcodec::GifDecoder::Input(), and fxcodec::CFX_GifContextForTest::SetTestInputBuffer().

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Member Data Documentation

◆ bc_index_

uint8_t fxcodec::CFX_GifContext::bc_index_ = 0

Definition at line 57 of file cfx_gifcontext.h.

Referenced by fxcodec::GifDecoder::ReadHeader(), ReadLogicalScreenDescriptor(), fxcodec::TEST(), and fxcodec::TEST().

◆ decode_status_

int32_t fxcodec::CFX_GifContext::decode_status_ = GIF_D_STATUS_SIG

Definition at line 51 of file cfx_gifcontext.h.

Referenced by LoadFrame().

◆ delegate_

UnownedPtr<GifDecoder::Delegate> const fxcodec::CFX_GifContext::delegate_

Definition at line 46 of file cfx_gifcontext.h.

◆ global_color_resolution_

uint8_t fxcodec::CFX_GifContext::global_color_resolution_ = 0

Definition at line 59 of file cfx_gifcontext.h.

Referenced by ReadLogicalScreenDescriptor(), fxcodec::TEST(), and fxcodec::TEST().

◆ global_palette_

std::vector<CFX_GifPalette> fxcodec::CFX_GifContext::global_palette_

Definition at line 47 of file cfx_gifcontext.h.

◆ global_palette_exp_

uint8_t fxcodec::CFX_GifContext::global_palette_exp_ = 0

Definition at line 48 of file cfx_gifcontext.h.

Referenced by fxcodec::GifDecoder::ReadHeader(), ReadLogicalScreenDescriptor(), fxcodec::TEST(), and fxcodec::TEST().

◆ global_sort_flag_

uint8_t fxcodec::CFX_GifContext::global_sort_flag_ = 0

Definition at line 58 of file cfx_gifcontext.h.

Referenced by ReadLogicalScreenDescriptor(), fxcodec::TEST(), and fxcodec::TEST().

◆ graphic_control_extension_

std::unique_ptr<CFX_GifGraphicControlExtension> fxcodec::CFX_GifContext::graphic_control_extension_

Definition at line 52 of file cfx_gifcontext.h.

◆ height_

int fxcodec::CFX_GifContext::height_ = 0

Definition at line 56 of file cfx_gifcontext.h.

Referenced by fxcodec::GifDecoder::ReadHeader(), ReadLogicalScreenDescriptor(), fxcodec::TEST(), and fxcodec::TEST().

◆ images_

std::vector<std::unique_ptr<CFX_GifImage> > fxcodec::CFX_GifContext::images_

Definition at line 53 of file cfx_gifcontext.h.

◆ img_pass_num_

uint8_t fxcodec::CFX_GifContext::img_pass_num_ = 0

Definition at line 60 of file cfx_gifcontext.h.

Referenced by LoadFrame().

◆ img_row_avail_size_

uint32_t fxcodec::CFX_GifContext::img_row_avail_size_ = 0

Definition at line 50 of file cfx_gifcontext.h.

Referenced by LoadFrame().

◆ img_row_offset_

uint32_t fxcodec::CFX_GifContext::img_row_offset_ = 0

Definition at line 49 of file cfx_gifcontext.h.

Referenced by LoadFrame().

◆ input_buffer_

RetainPtr<CFX_CodecMemory> fxcodec::CFX_GifContext::input_buffer_

protected

Definition at line 67 of file cfx_gifcontext.h.

◆ lzw_decompressor_

std::unique_ptr<LZWDecompressor> fxcodec::CFX_GifContext::lzw_decompressor_

Definition at line 54 of file cfx_gifcontext.h.

◆ width_

int fxcodec::CFX_GifContext::width_ = 0

Definition at line 55 of file cfx_gifcontext.h.

Referenced by fxcodec::GifDecoder::ReadHeader(), ReadLogicalScreenDescriptor(), fxcodec::TEST(), and fxcodec::TEST().

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

qtwebengine/src/3rdparty/chromium/third_party/pdfium/core/fxcodec/gif/cfx_gifcontext.h (3dce9b5818576f04ce21cec4b3686eda012e5b65)
qtwebengine/src/3rdparty/chromium/third_party/pdfium/core/fxcodec/gif/cfx_gifcontext.cpp (9c1f44f67466fea2fb20bb6f31fea388d8c65961)

Public Member Functions

Public Attributes

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ CFX_GifContext()

◆ ~CFX_GifContext()

Member Function Documentation

◆ GetAvailInput()

◆ GetFrame()

◆ GetFrameNum()

◆ GetRecordPosition()

◆ LoadFrame()

◆ ReadAllOrNone()

◆ ReadGifSignature()

◆ ReadHeader()

◆ ReadLogicalScreenDescriptor()

◆ ReadScanline()

◆ SetInputBuffer()

Member Data Documentation

◆ bc_index_

◆ decode_status_

◆ delegate_

◆ global_color_resolution_

◆ global_palette_

◆ global_palette_exp_

◆ global_sort_flag_

◆ graphic_control_extension_

◆ height_

◆ images_

◆ img_pass_num_

◆ img_row_avail_size_

◆ img_row_offset_

◆ input_buffer_

◆ lzw_decompressor_

◆ width_