flutter::DisplayListMatrixClipState Class Reference

#include <dl_matrix_clip_tracker.h>

Public Member Functions
	DisplayListMatrixClipState (const DlRect &cull_rect, const DlMatrix &matrix)
	DisplayListMatrixClipState (const SkRect &cull_rect, const SkMatrix &matrix)
	DisplayListMatrixClipState (const SkRect &cull_rect, const SkM44 &matrix)
	DisplayListMatrixClipState (const DisplayListMatrixClipState &other)=default
void	resetDeviceCullRect (const DlRect &cull_rect)
void	resetDeviceCullRect (const SkRect &cull_rect)
void	resetLocalCullRect (const DlRect &cull_rect)
void	resetLocalCullRect (const SkRect &cull_rect)
bool	using_4x4_matrix () const
bool	is_matrix_invertable () const
bool	has_perspective () const
const DlMatrix &	matrix () const
SkM44	matrix_4x4 () const
SkMatrix	matrix_3x3 () const
SkRect	local_cull_rect () const
SkRect	device_cull_rect () const
bool	content_culled (const DlRect &content_bounds) const
bool	content_culled (const SkRect &content_bounds) const
bool	is_cull_rect_empty () const
void	translate (SkScalar tx, SkScalar ty)
void	scale (SkScalar sx, SkScalar sy)
void	skew (SkScalar skx, SkScalar sky)
void	rotate (SkScalar degrees)
void	transform (const DlMatrix &matrix)
void	transform (const SkM44 &m44)
void	transform (const SkMatrix &matrix)
void	transform2DAffine (SkScalar mxx, SkScalar mxy, SkScalar mxt, SkScalar myx, SkScalar myy, SkScalar myt)
void	transformFullPerspective (SkScalar mxx, SkScalar mxy, SkScalar mxz, SkScalar mxt, SkScalar myx, SkScalar myy, SkScalar myz, SkScalar myt, SkScalar mzx, SkScalar mzy, SkScalar mzz, SkScalar mzt, SkScalar mwx, SkScalar mwy, SkScalar mwz, SkScalar mwt)
void	setTransform (const DlMatrix &matrix)
void	setTransform (const SkMatrix &matrix)
void	setTransform (const SkM44 &m44)
void	setIdentity ()
bool	inverseTransform (const DisplayListMatrixClipState &other_tracker)
bool	mapRect (DlRect *rect) const
bool	mapRect (const DlRect &src, DlRect *mapped) const
bool	mapRect (SkRect *rect) const
bool	mapRect (const SkRect &src, SkRect *mapped) const
void	clipRect (const DlRect &rect, ClipOp op, bool is_aa)
void	clipRect (const SkRect &rect, ClipOp op, bool is_aa)
void	clipRRect (const SkRRect &rrect, ClipOp op, bool is_aa)
void	clipPath (const SkPath &path, ClipOp op, bool is_aa)

Friends
class	DisplayListMatrixClipTracker

Detailed Description

Definition at line 24 of file dl_matrix_clip_tracker.h.

Constructor & Destructor Documentation

DisplayListMatrixClipState() [1/4]

flutter::DisplayListMatrixClipState::DisplayListMatrixClipState	(	const DlRect &	cull_rect,
		const DlMatrix &	matrix
	)

Definition at line 21 of file dl_matrix_clip_tracker.cc.

    : cull_rect_(cull_rect), matrix_(matrix) {}

DisplayListMatrixClipState() [2/4]

flutter::DisplayListMatrixClipState::DisplayListMatrixClipState	(	const SkRect &	cull_rect,
		const SkMatrix &	matrix
	)

Definition at line 25 of file dl_matrix_clip_tracker.cc.

    : cull_rect_(ToDlRect(cull_rect)), matrix_(ToDlMatrix(matrix)) {}

DisplayListMatrixClipState() [3/4]

flutter::DisplayListMatrixClipState::DisplayListMatrixClipState	(	const SkRect &	cull_rect,
		const SkM44 &	matrix
	)

Definition at line 29 of file dl_matrix_clip_tracker.cc.

    : cull_rect_(ToDlRect(cull_rect)), matrix_(ToDlMatrix(matrix)) {}

DisplayListMatrixClipState() [4/4]

flutter::DisplayListMatrixClipState::DisplayListMatrixClipState ( const DisplayListMatrixClipState &  other )

default

Member Function Documentation

clipPath()

void flutter::DisplayListMatrixClipState::clipPath	(	const SkPath &	path,
		ClipOp	op,
		bool	is_aa
	)

Definition at line 124 of file dl_matrix_clip_tracker.cc.

                                                      {
  // Map "kDifference of inverse path" to "kIntersect of the original path" and
  // map "kIntersect of inverse path" to "kDifference of the original path"
  if (path.isInverseFillType()) {
    switch (op) {
      case ClipOp::kIntersect:
        op = ClipOp::kDifference;
        break;
      case ClipOp::kDifference:
        op = ClipOp::kIntersect;
        break;
    }
  }
 
  SkRect bounds;
  switch (op) {
    case ClipOp::kIntersect:
      bounds = path.getBounds();
      break;
    case ClipOp::kDifference:
      if (!path.isRect(&bounds)) {
        return;
      }
      break;
  }
  adjustCullRect(ToDlRect(bounds), op, is_aa);
}

clipRect() [1/2]

void flutter::DisplayListMatrixClipState::clipRect	(	const DlRect &	rect,
		ClipOp	op,
		bool	is_aa
	)

Definition at line 102 of file dl_matrix_clip_tracker.cc.

                                                      {
  adjustCullRect(rect, op, is_aa);
}

clipRect() [2/2]

void flutter::DisplayListMatrixClipState::clipRect ( const SkRect &  rect, ClipOp  op, bool  is_aa  )

inline

Definition at line 169 of file dl_matrix_clip_tracker.h.

                                                           {
    clipRect(ToDlRect(rect), op, is_aa);
  }

clipRRect()

void flutter::DisplayListMatrixClipState::clipRRect	(	const SkRRect &	rrect,
		ClipOp	op,
		bool	is_aa
	)

Definition at line 108 of file dl_matrix_clip_tracker.cc.

                                                       {
  SkRect bounds = rrect.getBounds();
  switch (op) {
    case ClipOp::kIntersect:
      break;
    case ClipOp::kDifference:
      if (!rrect.isRect()) {
        return;
      }
      break;
  }
  adjustCullRect(ToDlRect(bounds), op, is_aa);
}

content_culled() [1/2]

bool flutter::DisplayListMatrixClipState::content_culled

(

const DlRect &

content_bounds

)

const

Definition at line 154 of file dl_matrix_clip_tracker.cc.

                                        {
  if (cull_rect_.IsEmpty() || content_bounds.IsEmpty()) {
    return true;
  }
  if (!is_matrix_invertable()) {
    return true;
  }
  if (has_perspective()) {
    return false;
  }
  DlRect mapped;
  mapRect(content_bounds, &mapped);
  return !mapped.IntersectsWithRect(cull_rect_);
}

content_culled() [2/2]

bool flutter::DisplayListMatrixClipState::content_culled ( const SkRect &  content_bounds ) const

inline

Definition at line 104 of file dl_matrix_clip_tracker.h.

                                                          {
    return content_culled(ToDlRect(content_bounds));
  }

device_cull_rect()

SkRect flutter::DisplayListMatrixClipState::device_cull_rect ( ) const

inline

Definition at line 101 of file dl_matrix_clip_tracker.h.

{ return ToSkRect(cull_rect_); }

has_perspective()

bool flutter::DisplayListMatrixClipState::has_perspective ( ) const

inline

Definition at line 94 of file dl_matrix_clip_tracker.h.

{ return matrix_.HasPerspective(); }

inverseTransform()

bool flutter::DisplayListMatrixClipState::inverseTransform

(

const DisplayListMatrixClipState &

other_tracker

)

Definition at line 93 of file dl_matrix_clip_tracker.cc.

                                               {
  if (tracker.is_matrix_invertable()) {
    matrix_ = matrix_ * tracker.matrix_.Invert();
    return true;
  }
  return false;
}

is_cull_rect_empty()

bool flutter::DisplayListMatrixClipState::is_cull_rect_empty ( ) const

inline

Definition at line 107 of file dl_matrix_clip_tracker.h.

{ return cull_rect_.IsEmpty(); }

is_matrix_invertable()

bool flutter::DisplayListMatrixClipState::is_matrix_invertable ( ) const

inline

Definition at line 93 of file dl_matrix_clip_tracker.h.

{ return matrix_.GetDeterminant() != 0.0f; }

local_cull_rect()

SkRect flutter::DisplayListMatrixClipState::local_cull_rect

(

)

const

Definition at line 233 of file dl_matrix_clip_tracker.cc.

                                                         {
  if (cull_rect_.IsEmpty()) {
    return SkRect::MakeEmpty();
  }
  if (!is_matrix_invertable()) {
    return SkRect::MakeEmpty();
  }
  if (matrix_.HasPerspective2D()) {
    // We could do a 4-point long-form conversion, but since this is
    // only used for culling, let's just return a non-constricting
    // cull rect.
    return DisplayListBuilder::kMaxCullRect;
  }
  DlMatrix inverse = matrix_.Invert();
  // We eliminated perspective above so we can use the cheaper non-clipping
  // bounds transform method.
  return ToSkRect(cull_rect_.TransformBounds(inverse));
}

mapRect() [1/4]

bool flutter::DisplayListMatrixClipState::mapRect ( const DlRect &  src, DlRect *  mapped  ) const

inline

Definition at line 158 of file dl_matrix_clip_tracker.h.

                                                        {
    *mapped = src.TransformAndClipBounds(matrix_);
    return matrix_.IsAligned2D();
  }

mapRect() [2/4]

bool flutter::DisplayListMatrixClipState::mapRect ( const SkRect &  src, SkRect *  mapped  ) const

inline

Definition at line 163 of file dl_matrix_clip_tracker.h.

                                                        {
    *mapped = ToSkRect(ToDlRect(src).TransformAndClipBounds(matrix_));
    return matrix_.IsAligned2D();
  }

mapRect() [3/4]

bool flutter::DisplayListMatrixClipState::mapRect ( DlRect *  rect ) const

inline

Definition at line 157 of file dl_matrix_clip_tracker.h.

{ return mapRect(*rect, rect); }

mapRect() [4/4]

bool flutter::DisplayListMatrixClipState::mapRect ( SkRect *  rect ) const

inline

Definition at line 162 of file dl_matrix_clip_tracker.h.

{ return mapRect(*rect, rect); }

matrix()

const DlMatrix & flutter::DisplayListMatrixClipState::matrix ( ) const

inline

Definition at line 96 of file dl_matrix_clip_tracker.h.

{ return matrix_; }

matrix_3x3()

SkMatrix flutter::DisplayListMatrixClipState::matrix_3x3 ( ) const

inline

Definition at line 98 of file dl_matrix_clip_tracker.h.

{ return ToSkMatrix(matrix_); }

matrix_4x4()

SkM44 flutter::DisplayListMatrixClipState::matrix_4x4 ( ) const

inline

Definition at line 97 of file dl_matrix_clip_tracker.h.

{ return SkM44::ColMajor(matrix_.m); }

resetDeviceCullRect() [1/2]

void flutter::DisplayListMatrixClipState::resetDeviceCullRect

(

const DlRect &

cull_rect

)

Definition at line 170 of file dl_matrix_clip_tracker.cc.

                                                                            {
  if (cull_rect.IsEmpty()) {
    cull_rect_ = DlRect();
  } else {
    cull_rect_ = cull_rect;
  }
}

resetDeviceCullRect() [2/2]

void flutter::DisplayListMatrixClipState::resetDeviceCullRect ( const SkRect &  cull_rect )

inline

Definition at line 84 of file dl_matrix_clip_tracker.h.

                                                    {
    resetDeviceCullRect(ToDlRect(cull_rect));
  }

resetLocalCullRect() [1/2]

void flutter::DisplayListMatrixClipState::resetLocalCullRect

(

const DlRect &

cull_rect

)

Definition at line 178 of file dl_matrix_clip_tracker.cc.

                                                                           {
  if (!cull_rect.IsEmpty()) {
    mapRect(cull_rect, &cull_rect_);
    if (!cull_rect_.IsEmpty()) {
      return;
    }
  }
  cull_rect_ = DlRect();
}

resetLocalCullRect() [2/2]

void flutter::DisplayListMatrixClipState::resetLocalCullRect ( const SkRect &  cull_rect )

inline

Definition at line 88 of file dl_matrix_clip_tracker.h.

                                                   {
    resetLocalCullRect(ToDlRect(cull_rect));
  }

rotate()

void flutter::DisplayListMatrixClipState::rotate ( SkScalar  degrees )

inline

Definition at line 118 of file dl_matrix_clip_tracker.h.

                                {
    matrix_ = matrix_ * DlMatrix::MakeRotationZ(DlDegrees(degrees));
  }

scale()

void flutter::DisplayListMatrixClipState::scale ( SkScalar  sx, SkScalar  sy  )

inline

Definition at line 112 of file dl_matrix_clip_tracker.h.

                                       {
    matrix_ = matrix_.Scale({sx, sy, 1.0f});
  }

setIdentity()

void flutter::DisplayListMatrixClipState::setIdentity ( )

inline

Definition at line 151 of file dl_matrix_clip_tracker.h.

{ matrix_ = DlMatrix(); }

setTransform() [1/3]

void flutter::DisplayListMatrixClipState::setTransform ( const DlMatrix &  matrix )

inline

Definition at line 148 of file dl_matrix_clip_tracker.h.

{ matrix_ = matrix; }

setTransform() [2/3]

void flutter::DisplayListMatrixClipState::setTransform ( const SkM44 &  m44 )

inline

Definition at line 150 of file dl_matrix_clip_tracker.h.

{ matrix_ = ToDlMatrix(m44); }

setTransform() [3/3]

void flutter::DisplayListMatrixClipState::setTransform ( const SkMatrix &  matrix )

inline

Definition at line 149 of file dl_matrix_clip_tracker.h.

{ matrix_ = ToDlMatrix(matrix); }

skew()

void flutter::DisplayListMatrixClipState::skew ( SkScalar  skx, SkScalar  sky  )

inline

Definition at line 115 of file dl_matrix_clip_tracker.h.

                                        {
    matrix_ = matrix_ * DlMatrix::MakeSkew(skx, sky);
  }

transform() [1/3]

void flutter::DisplayListMatrixClipState::transform ( const DlMatrix &  matrix )

inline

Definition at line 121 of file dl_matrix_clip_tracker.h.

{ matrix_ = matrix_ * matrix; }

transform() [2/3]

void flutter::DisplayListMatrixClipState::transform ( const SkM44 &  m44 )

inline

Definition at line 122 of file dl_matrix_clip_tracker.h.

{ transform(ToDlMatrix(m44)); }

transform() [3/3]

void flutter::DisplayListMatrixClipState::transform ( const SkMatrix &  matrix )

inline

Definition at line 123 of file dl_matrix_clip_tracker.h.

{ transform(ToDlMatrix(matrix)); }

transform2DAffine()

void flutter::DisplayListMatrixClipState::transform2DAffine ( SkScalar  mxx, SkScalar  mxy, SkScalar  mxt, SkScalar  myx, SkScalar  myy, SkScalar  myt  )

inline

Definition at line 125 of file dl_matrix_clip_tracker.h.

                                                {
    matrix_ = matrix_ * DlMatrix::MakeColumn(
         mxx,  myx, 0.0f, 0.0f,
         mxy,  myy, 0.0f, 0.0f,
        0.0f, 0.0f, 1.0f, 0.0f,
         mxt,  myt, 0.0f, 1.0f
    );
  }

transformFullPerspective()

void flutter::DisplayListMatrixClipState::transformFullPerspective ( SkScalar  mxx, SkScalar  mxy, SkScalar  mxz, SkScalar  mxt, SkScalar  myx, SkScalar  myy, SkScalar  myz, SkScalar  myt, SkScalar  mzx, SkScalar  mzy, SkScalar  mzz, SkScalar  mzt, SkScalar  mwx, SkScalar  mwy, SkScalar  mwz, SkScalar  mwt  )

inline

Definition at line 135 of file dl_matrix_clip_tracker.h.

                                                              {
    matrix_ = matrix_ * DlMatrix::MakeColumn(
        mxx, myx, mzx, mwx,
        mxy, myy, mzy, mwy,
        mxz, myz, mzz, mwz,
        mxt, myt, mzt, mwt
    );
  }

translate()

void flutter::DisplayListMatrixClipState::translate ( SkScalar  tx, SkScalar  ty  )

inline

Definition at line 109 of file dl_matrix_clip_tracker.h.

                                           {
    matrix_ = matrix_.Translate({tx, ty});
  }

using_4x4_matrix()

bool flutter::DisplayListMatrixClipState::using_4x4_matrix ( ) const

inline

Definition at line 92 of file dl_matrix_clip_tracker.h.

{ return !matrix_.IsAffine(); }

Friends And Related Symbol Documentation

DisplayListMatrixClipTracker

friend class DisplayListMatrixClipTracker

friend

Definition at line 181 of file dl_matrix_clip_tracker.h.

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

• display_list/utils/dl_matrix_clip_tracker.h
• display_list/utils/dl_matrix_clip_tracker.cc