CStretchEngine Class Reference

#include <cstretchengine.h>

Collaboration diagram for CStretchEngine:

Classes
struct	PixelWeight
class	WeightTable

Public Member Functions
	CStretchEngine (ScanlineComposerIface *pDestBitmap, FXDIB_Format dest_format, int dest_width, int dest_height, const FX_RECT &clip_rect, const RetainPtr< const CFX_DIBBase > &pSrcBitmap, const FXDIB_ResampleOptions &options)
	~CStretchEngine ()
bool	Continue (PauseIndicatorIface *pPause)
bool	StartStretchHorz ()
bool	ContinueStretchHorz (PauseIndicatorIface *pPause)
void	StretchVert ()
const FXDIB_ResampleOptions &	GetResampleOptionsForTest () const

Static Public Member Functions
static uint32_t	FixedFromDouble (double d)
static uint32_t	FixedFromFloat (float f)
static uint8_t	PixelFromFixed (uint32_t fixed)
static bool	UseInterpolateBilinear (const FXDIB_ResampleOptions &options, int dest_width, int dest_height, int src_width, int src_height)

Static Public Attributes
static constexpr uint32_t	kFixedPointBits = 16
static constexpr uint32_t	kFixedPointOne = 1 << kFixedPointBits

Detailed Description

Definition at line 26 of file cstretchengine.h.

Constructor & Destructor Documentation

CStretchEngine()

CStretchEngine::CStretchEngine	(	ScanlineComposerIface *	pDestBitmap,
		FXDIB_Format	dest_format,
		int	dest_width,
		int	dest_height,
		const FX_RECT &	clip_rect,
		const RetainPtr< const CFX_DIBBase > &	pSrcBitmap,
		const FXDIB_ResampleOptions &	options )

Definition at line 180 of file cstretchengine.cpp.

References CStretchEngine(), FX_RECT::FX_RECT(), FX_RECT::FX_RECT(), FXDIB_ResampleOptions::bInterpolateBilinear, FXDIB_ResampleOptions::bNoSmoothing, FX_RECT::bottom, fxge::CalculatePitch32OrDie(), GetBppFromFormat(), FX_RECT::Intersect(), kArgb, FX_RECT::left, FX_RECT::right, FX_RECT::top, UseInterpolateBilinear(), and FX_RECT::Width().

Referenced by CStretchEngine().

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~CStretchEngine()

CStretchEngine::~CStretchEngine ( )

default

Member Function Documentation

Continue()

bool CStretchEngine::Continue

(

PauseIndicatorIface *

pPause

)

Definition at line 263 of file cstretchengine.cpp.

References ContinueStretchHorz(), and StretchVert().

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ContinueStretchHorz()

bool CStretchEngine::ContinueStretchHorz

(

PauseIndicatorIface *

pPause

)

Definition at line 298 of file cstretchengine.cpp.

References FX_RECT::bottom, CStretchEngine::PixelWeight::GetWeightForPosition(), kRgb, FX_RECT::left, CStretchEngine::PixelWeight::m_SrcEnd, CStretchEngine::PixelWeight::m_SrcStart, PauseIndicatorIface::NeedToPauseNow(), PixelFromFixed(), and FX_RECT::right.

Referenced by Continue().

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FixedFromDouble()

static uint32_t CStretchEngine::FixedFromDouble ( double d )

inlinestatic

Definition at line 31 of file cstretchengine.h.

References FXSYS_round(), and kFixedPointOne.

Referenced by CStretchEngine::WeightTable::CalculateWeights().

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FixedFromFloat()

static uint32_t CStretchEngine::FixedFromFloat ( float f )

inlinestatic

Definition at line 35 of file cstretchengine.h.

References FXSYS_roundf(), and kFixedPointOne.

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GetResampleOptionsForTest()

const FXDIB_ResampleOptions & CStretchEngine::GetResampleOptionsForTest ( ) const

inline

Definition at line 124 of file cstretchengine.h.

Referenced by TEST().

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PixelFromFixed()

static uint8_t CStretchEngine::PixelFromFixed ( uint32_t fixed )

inlinestatic

Definition at line 39 of file cstretchengine.h.

References kFixedPointBits.

Referenced by ContinueStretchHorz(), and StretchVert().

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StartStretchHorz()

bool CStretchEngine::StartStretchHorz

(

)

Definition at line 274 of file cstretchengine.cpp.

References FX_RECT::top.

StretchVert()

void CStretchEngine::StretchVert

(

)

Definition at line 423 of file cstretchengine.cpp.

References FX_RECT::bottom, CStretchEngine::WeightTable::CalculateWeights(), CStretchEngine::WeightTable::GetPixelWeight(), CStretchEngine::PixelWeight::GetWeightForPosition(), FX_RECT::left, CStretchEngine::PixelWeight::m_SrcEnd, CStretchEngine::PixelWeight::m_SrcStart, PixelFromFixed(), FX_RECT::right, and FX_RECT::top.

Referenced by Continue().

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UseInterpolateBilinear()

bool CStretchEngine::UseInterpolateBilinear ( const FXDIB_ResampleOptions & options, int dest_width, int dest_height, int src_width, int src_height )

static

Definition at line 30 of file cstretchengine.cpp.

References FXDIB_ResampleOptions::bInterpolateBilinear, and FXDIB_ResampleOptions::bNoSmoothing.

Referenced by CStretchEngine().

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Member Data Documentation

kFixedPointBits

uint32_t CStretchEngine::kFixedPointBits = 16

staticconstexpr

Definition at line 28 of file cstretchengine.h.

Referenced by PixelFromFixed().

kFixedPointOne

uint32_t CStretchEngine::kFixedPointOne = 1 << kFixedPointBits

staticconstexpr

Definition at line 29 of file cstretchengine.h.

Referenced by CStretchEngine::WeightTable::CalculateWeights(), FixedFromDouble(), and FixedFromFloat().

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

• qtwebengine/src/3rdparty/chromium/third_party/pdfium/core/fxge/dib/cstretchengine.h (9c1f44f67466fea2fb20bb6f31fea388d8c65961)
• qtwebengine/src/3rdparty/chromium/third_party/pdfium/core/fxge/dib/cstretchengine.cpp (9c1f44f67466fea2fb20bb6f31fea388d8c65961)