flutter::testing::TestParameters Class Reference

Public Member Functions
	TestParameters (const DlRenderer &dl_renderer, const DisplayListAttributeFlags &flags)
bool	uses_paint () const
bool	uses_gradient () const
bool	impeller_compatible (const DlPaint &paint) const
bool	should_match (const RenderEnvironment &env, const CaseParameters &caseP, const DlPaint &attr, const MatrixClipJobRenderer &renderer) const
DlStrokeCap	getCap (const DlPaint &attr, DisplayListSpecialGeometryFlags geo_flags) const
const BoundsTolerance	adjust (const BoundsTolerance &tolerance, const DlPaint &paint, const DlMatrix &matrix) const
const BoundsTolerance	lineAdjust (const BoundsTolerance &tolerance, const DlPaint &paint, const DlMatrix &matrix) const
const DlRenderer &	dl_renderer () const
bool	is_draw_text_blob () const
bool	is_draw_display_list () const
bool	is_draw_line () const
bool	is_draw_arc_center () const
bool	is_draw_path () const
bool	is_horizontal_line () const
bool	is_vertical_line () const
bool	ignores_dashes () const
DisplayListAttributeFlags	flags () const
TestParameters &	set_draw_text_blob ()
TestParameters &	set_draw_display_list ()
TestParameters &	set_draw_line ()
TestParameters &	set_draw_arc_center ()
TestParameters &	set_draw_path ()
TestParameters &	set_ignores_dashes ()
TestParameters &	set_horizontal_line ()
TestParameters &	set_vertical_line ()

Detailed Description

Definition at line 652 of file dl_rendering_unittests.cc.

Constructor & Destructor Documentation

TestParameters()

flutter::testing::TestParameters::TestParameters ( const DlRenderer &  dl_renderer, const DisplayListAttributeFlags &  flags  )

inline

Definition at line 654 of file dl_rendering_unittests.cc.

      : dl_renderer_(dl_renderer), flags_(flags) {}

Member Function Documentation

adjust()

const BoundsTolerance flutter::testing::TestParameters::adjust ( const BoundsTolerance &  tolerance, const DlPaint &  paint, const DlMatrix &  matrix  ) const

inline

Definition at line 773 of file dl_rendering_unittests.cc.

                                                             {
    if (is_draw_text_blob() && tolerance.discrete_offset() > 0) {
      // drawTextBlob needs just a little more leeway when using a
      // discrete path effect.
      return tolerance.addBoundsPadding(2, 2);
    }
    if (is_draw_line()) {
      return lineAdjust(tolerance, paint, matrix);
    }
    if (is_draw_arc_center()) {
      if (paint.getDrawStyle() != DlDrawStyle::kFill &&
          paint.getStrokeJoin() == DlStrokeJoin::kMiter) {
        // the miter join at the center of an arc does not really affect
        // its bounds in any of our test cases, but the bounds code needs
        // to take it into account for the cases where it might, so we
        // relax our tolerance to reflect the miter bounds padding.
        DlScalar miter_pad =
            paint.getStrokeMiter() * paint.getStrokeWidth() * 0.5f;
        return tolerance.addBoundsPadding(miter_pad, miter_pad);
      }
    }
    return tolerance;
  }

References flutter::testing::BoundsTolerance::addBoundsPadding(), flutter::testing::BoundsTolerance::discrete_offset(), flutter::DlPaint::getDrawStyle(), flutter::DlPaint::getStrokeJoin(), flutter::DlPaint::getStrokeMiter(), flutter::DlPaint::getStrokeWidth(), is_draw_arc_center(), is_draw_line(), is_draw_text_blob(), flutter::kFill, flutter::kMiter, and lineAdjust().

Referenced by lineAdjust().

dl_renderer()

const DlRenderer & flutter::testing::TestParameters::dl_renderer ( ) const

inline

Definition at line 844 of file dl_rendering_unittests.cc.

{ return dl_renderer_; }

Referenced by flutter::testing::CanvasCompareTester::RenderWith(), flutter::testing::CanvasCompareTester::RenderWithAttributes(), flutter::testing::CanvasCompareTester::RenderWithSaveRestore(), and flutter::testing::CanvasCompareTester::RenderWithStrokes().

flags()

DisplayListAttributeFlags flutter::testing::TestParameters::flags ( ) const

inline

Definition at line 859 of file dl_rendering_unittests.cc.

{ return flags_; }

getCap()

DlStrokeCap flutter::testing::TestParameters::getCap ( const DlPaint &  attr, DisplayListSpecialGeometryFlags  geo_flags  ) const

inline

Definition at line 764 of file dl_rendering_unittests.cc.

                                                                      {
    DlStrokeCap cap = attr.getStrokeCap();
    if (geo_flags.butt_cap_becomes_square() && cap == DlStrokeCap::kButt) {
      return DlStrokeCap::kSquare;
    }
    return cap;
  }

References flutter::DisplayListSpecialGeometryFlags::butt_cap_becomes_square(), flutter::DlPaint::getStrokeCap(), flutter::kButt, and flutter::kSquare.

Referenced by should_match().

ignores_dashes()

bool flutter::testing::TestParameters::ignores_dashes ( ) const

inline

Definition at line 857 of file dl_rendering_unittests.cc.

{ return ignores_dashes_; }

impeller_compatible()

bool flutter::testing::TestParameters::impeller_compatible ( const DlPaint &  paint ) const

inline

Definition at line 661 of file dl_rendering_unittests.cc.

                                                       {
    if (is_draw_text_blob()) {
      // Non-color text is rendered as paths
      if (paint.getColorSourcePtr()) {
        return false;
      }
      // Non-filled text (stroke or stroke and fill) is rendered as paths
      if (paint.getDrawStyle() != DlDrawStyle::kFill) {
        return false;
      }
    }
    return true;
  }

References flutter::DlPaint::getColorSourcePtr(), flutter::DlPaint::getDrawStyle(), is_draw_text_blob(), and flutter::kFill.

is_draw_arc_center()

bool flutter::testing::TestParameters::is_draw_arc_center ( ) const

inline

Definition at line 853 of file dl_rendering_unittests.cc.

{ return is_draw_arc_center_; }

Referenced by adjust().

is_draw_display_list()

bool flutter::testing::TestParameters::is_draw_display_list ( ) const

inline

Definition at line 851 of file dl_rendering_unittests.cc.

{ return is_draw_display_list_; }

is_draw_line()

bool flutter::testing::TestParameters::is_draw_line ( ) const

inline

Definition at line 852 of file dl_rendering_unittests.cc.

{ return is_draw_line_; }

Referenced by adjust().

is_draw_path()

bool flutter::testing::TestParameters::is_draw_path ( ) const

inline

Definition at line 854 of file dl_rendering_unittests.cc.

{ return is_draw_path_; }

Referenced by flutter::testing::CanvasCompareTester::RenderWithStrokes().

is_draw_text_blob()

bool flutter::testing::TestParameters::is_draw_text_blob ( ) const

inline

Definition at line 850 of file dl_rendering_unittests.cc.

{ return is_draw_text_blob_; }

Referenced by adjust(), and impeller_compatible().

is_horizontal_line()

bool flutter::testing::TestParameters::is_horizontal_line ( ) const

inline

Definition at line 855 of file dl_rendering_unittests.cc.

{ return is_horizontal_line_; }

Referenced by lineAdjust().

is_vertical_line()

bool flutter::testing::TestParameters::is_vertical_line ( ) const

inline

Definition at line 856 of file dl_rendering_unittests.cc.

{ return is_vertical_line_; }

Referenced by lineAdjust().

lineAdjust()

const BoundsTolerance flutter::testing::TestParameters::lineAdjust ( const BoundsTolerance &  tolerance, const DlPaint &  paint, const DlMatrix &  matrix  ) const

inline

Definition at line 799 of file dl_rendering_unittests.cc.

                                                                 {
    DlScalar adjust = 0.0;
    DlScalar half_width = paint.getStrokeWidth() * 0.5f;
    if (tolerance.discrete_offset() > 0) {
      // When a discrete path effect is added, the bounds calculations must
      // allow for miters in any direction, but a horizontal line will not
      // have miters in the horizontal direction, similarly for vertical
      // lines, and diagonal lines will have miters off at a "45 degree"
      // angle that don't expand the bounds much at all.
      // Also, the discrete offset will not move any points parallel with
      // the line, so provide tolerance for both miters and offset.
      adjust =
          half_width * paint.getStrokeMiter() + tolerance.discrete_offset();
    }
 
    DisplayListSpecialGeometryFlags geo_flags = flags_.GeometryFlags(true);
    if (paint.getStrokeCap() == DlStrokeCap::kButt &&
        !geo_flags.butt_cap_becomes_square()) {
      adjust = std::max(adjust, half_width);
    }
    if (adjust == 0) {
      return tolerance;
    }
    DlScalar h_tolerance;
    DlScalar v_tolerance;
    if (is_horizontal_line()) {
      FML_DCHECK(!is_vertical_line());
      h_tolerance = adjust;
      v_tolerance = 0;
    } else if (is_vertical_line()) {
      h_tolerance = 0;
      v_tolerance = adjust;
    } else {
      // The perpendicular miters just do not impact the bounds of
      // diagonal lines at all as they are aimed in the wrong direction
      // to matter. So allow tolerance in both axes.
      h_tolerance = v_tolerance = adjust;
    }
    BoundsTolerance new_tolerance =
        tolerance.addBoundsPadding(h_tolerance, v_tolerance);
    return new_tolerance;
  }

References flutter::testing::BoundsTolerance::addBoundsPadding(), adjust(), flutter::DisplayListSpecialGeometryFlags::butt_cap_becomes_square(), flutter::testing::BoundsTolerance::discrete_offset(), FML_DCHECK, flutter::DisplayListAttributeFlags::GeometryFlags(), flutter::DlPaint::getStrokeCap(), flutter::DlPaint::getStrokeMiter(), flutter::DlPaint::getStrokeWidth(), is_horizontal_line(), is_vertical_line(), and flutter::kButt.

Referenced by adjust().

set_draw_arc_center()

TestParameters & flutter::testing::TestParameters::set_draw_arc_center ( )

inline

Definition at line 873 of file dl_rendering_unittests.cc.

                                        {
    is_draw_arc_center_ = true;
    return *this;
  }

set_draw_display_list()

TestParameters & flutter::testing::TestParameters::set_draw_display_list ( )

inline

Definition at line 865 of file dl_rendering_unittests.cc.

                                          {
    is_draw_display_list_ = true;
    return *this;
  }

set_draw_line()

TestParameters & flutter::testing::TestParameters::set_draw_line ( )

inline

Definition at line 869 of file dl_rendering_unittests.cc.

                                  {
    is_draw_line_ = true;
    return *this;
  }

set_draw_path()

TestParameters & flutter::testing::TestParameters::set_draw_path ( )

inline

Definition at line 877 of file dl_rendering_unittests.cc.

                                  {
    is_draw_path_ = true;
    return *this;
  }

set_draw_text_blob()

TestParameters & flutter::testing::TestParameters::set_draw_text_blob ( )

inline

Definition at line 861 of file dl_rendering_unittests.cc.

                                       {
    is_draw_text_blob_ = true;
    return *this;
  }

set_horizontal_line()

TestParameters & flutter::testing::TestParameters::set_horizontal_line ( )

inline

Definition at line 885 of file dl_rendering_unittests.cc.

                                        {
    is_horizontal_line_ = true;
    return *this;
  }

Referenced by flutter::testing::TEST_F().

set_ignores_dashes()

TestParameters & flutter::testing::TestParameters::set_ignores_dashes ( )

inline

Definition at line 881 of file dl_rendering_unittests.cc.

                                       {
    ignores_dashes_ = true;
    return *this;
  }

Referenced by flutter::testing::TEST_F().

set_vertical_line()

TestParameters & flutter::testing::TestParameters::set_vertical_line ( )

inline

Definition at line 889 of file dl_rendering_unittests.cc.

                                      {
    is_vertical_line_ = true;
    return *this;
  }

Referenced by flutter::testing::TEST_F().

should_match()

bool flutter::testing::TestParameters::should_match ( const RenderEnvironment &  env, const CaseParameters &  caseP, const DlPaint &  attr, const MatrixClipJobRenderer &  renderer  ) const

inline

Definition at line 675 of file dl_rendering_unittests.cc.

                                                                 {
    if (caseP.has_mutating_save_layer()) {
      return false;
    }
    if (env.GetReferenceClipBounds() != renderer.GetSetupClipBounds() ||
        caseP.has_diff_clip()) {
      return false;
    }
    if (env.GetReferenceMatrix() != renderer.GetSetupMatrix() &&
        !flags_.is_flood()) {
      return false;
    }
    if (flags_.ignores_paint()) {
      return true;
    }
    const DlPaint& ref_attr = env.GetReferencePaint();
    if (flags_.applies_anti_alias() &&  //
        ref_attr.isAntiAlias() != attr.isAntiAlias()) {
      if (env.GetProvider()->TargetsImpeller()) {
        // Impeller only does MSAA, ignoring the AA attribute
        // https://github.com/flutter/flutter/issues/104721
      } else {
        return false;
      }
    }
    if (flags_.applies_color() &&  //
        ref_attr.getColor() != attr.getColor()) {
      return false;
    }
    if (flags_.applies_blend() &&  //
        ref_attr.getBlendMode() != attr.getBlendMode()) {
      return false;
    }
    if (flags_.applies_color_filter() &&  //
        (ref_attr.isInvertColors() != attr.isInvertColors() ||
         NotEquals(ref_attr.getColorFilter(), attr.getColorFilter()))) {
      return false;
    }
    if (flags_.applies_mask_filter() &&  //
        NotEquals(ref_attr.getMaskFilter(), attr.getMaskFilter())) {
      return false;
    }
    if (flags_.applies_image_filter() &&  //
        ref_attr.getImageFilter() != attr.getImageFilter()) {
      return false;
    }
    if (flags_.applies_shader() &&  //
        NotEquals(ref_attr.getColorSource(), attr.getColorSource())) {
      return false;
    }
 
    bool is_stroked = flags_.is_stroked(attr.getDrawStyle());
    if (flags_.is_stroked(ref_attr.getDrawStyle()) != is_stroked) {
      return false;
    }
    if (!is_stroked) {
      return true;
    }
    if (ref_attr.getStrokeWidth() != attr.getStrokeWidth()) {
      return false;
    }
    DisplayListSpecialGeometryFlags geo_flags =
        flags_.GeometryFlags(is_stroked);
    if (geo_flags.may_have_end_caps() &&  //
        getCap(ref_attr, geo_flags) != getCap(attr, geo_flags)) {
      return false;
    }
    if (geo_flags.may_have_joins()) {
      if (ref_attr.getStrokeJoin() != attr.getStrokeJoin()) {
        return false;
      }
      if (ref_attr.getStrokeJoin() == DlStrokeJoin::kMiter) {
        DlScalar ref_miter = ref_attr.getStrokeMiter();
        DlScalar test_miter = attr.getStrokeMiter();
        // miter limit < 1.4 affects right angles
        if (geo_flags.may_have_acute_joins() ||  //
            ref_miter < 1.4 || test_miter < 1.4) {
          if (ref_miter != test_miter) {
            return false;
          }
        }
      }
    }
    return true;
  }

References flutter::DisplayListAttributeFlags::applies_anti_alias(), flutter::DisplayListAttributeFlags::applies_blend(), flutter::DisplayListAttributeFlags::applies_color(), flutter::DisplayListAttributeFlags::applies_color_filter(), flutter::DisplayListAttributeFlags::applies_image_filter(), flutter::DisplayListAttributeFlags::applies_mask_filter(), flutter::DisplayListAttributeFlags::applies_shader(), flutter::DisplayListAttributeFlags::GeometryFlags(), flutter::DlPaint::getBlendMode(), getCap(), flutter::DlPaint::getColor(), flutter::DlPaint::getColorFilter(), flutter::DlPaint::getColorSource(), flutter::DlPaint::getDrawStyle(), flutter::DlPaint::getImageFilter(), flutter::DlPaint::getMaskFilter(), flutter::testing::RenderEnvironment::GetProvider(), flutter::testing::RenderEnvironment::GetReferenceClipBounds(), flutter::testing::RenderEnvironment::GetReferenceMatrix(), flutter::testing::RenderEnvironment::GetReferencePaint(), flutter::testing::MatrixClipJobRenderer::GetSetupClipBounds(), flutter::testing::MatrixClipJobRenderer::GetSetupMatrix(), flutter::DlPaint::getStrokeJoin(), flutter::DlPaint::getStrokeMiter(), flutter::DlPaint::getStrokeWidth(), flutter::testing::CaseParameters::has_diff_clip(), flutter::testing::CaseParameters::has_mutating_save_layer(), flutter::DisplayListAttributeFlags::ignores_paint(), flutter::DisplayListAttributeFlags::is_flood(), flutter::DisplayListAttributeFlags::is_stroked(), flutter::DlPaint::isAntiAlias(), flutter::DlPaint::isInvertColors(), flutter::kMiter, flutter::DisplayListSpecialGeometryFlags::may_have_acute_joins(), flutter::DisplayListSpecialGeometryFlags::may_have_end_caps(), flutter::DisplayListSpecialGeometryFlags::may_have_joins(), flutter::NotEquals(), and flutter::testing::DlSurfaceProvider::TargetsImpeller().

Referenced by flutter::testing::CanvasCompareTester::RenderWith().

uses_gradient()

bool flutter::testing::TestParameters::uses_gradient ( ) const

inline

Definition at line 659 of file dl_rendering_unittests.cc.

{ return flags_.applies_shader(); }

References flutter::DisplayListAttributeFlags::applies_shader().

uses_paint()

bool flutter::testing::TestParameters::uses_paint ( ) const

inline

Definition at line 658 of file dl_rendering_unittests.cc.

{ return !flags_.ignores_paint(); }

References flutter::DisplayListAttributeFlags::ignores_paint().

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

• display_list/testing/dl_rendering_unittests.cc