Skwasm Namespace Reference

Classes
struct	FlutterFontCollection
struct	Paragraph
struct	ParagraphBuilder
struct	ParagraphStyle
class	sp_wrapper
class	Surface
struct	SurfaceWrapper
struct	TextStyle
class	TextureSourceWrapper

Typedefs
using	SkwasmObject = __externref_t

Enumerations
enum class	FilterQuality {   none ,   low ,   medium ,   high }
enum class	ImageByteFormat {   rawRgba ,   rawStraightRgba ,   rawUnmodified ,   png }

Functions
flutter::DlMatrix	createDlMatrixFrom3x3 (const flutter::DlScalar *f)
SkMatrix	createSkMatrix (const SkScalar *f)
flutter::DlRect	createDlRect (const float *f)
flutter::DlRoundingRadii	createDlRadii (const float *f)
flutter::DlRoundRect	createDlRRect (const float *f)
SkRRect	createSkRRect (const SkScalar *f)
flutter::DlFilterMode	filterModeForQuality (FilterQuality quality)
flutter::DlImageSampling	samplingOptionsForQuality (FilterQuality quality)
void	makeCurrent (EMSCRIPTEN_WEBGL_CONTEXT_HANDLE handle)

Typedef Documentation

SkwasmObject

using Skwasm::SkwasmObject = typedef __externref_t

Definition at line 16 of file wrappers.h.

Enumeration Type Documentation

FilterQuality

enum class Skwasm::FilterQuality

strong

Enumerator
none
low
medium
high

Definition at line 76 of file helpers.h.

                         {
  none,
  low,
  medium,
  high,
};

ImageByteFormat

enum class Skwasm::ImageByteFormat

strong

Enumerator
rawRgba
rawStraightRgba
rawUnmodified
png

Definition at line 32 of file surface.h.

                           {
  rawRgba,
  rawStraightRgba,
  rawUnmodified,
  png,
};

Function Documentation

createDlMatrixFrom3x3()

flutter::DlMatrix Skwasm::createDlMatrixFrom3x3 ( const flutter::DlScalar *  f )

inline

Definition at line 30 of file helpers.h.

                                                                       {
  // clang-format off
  return flutter::DlMatrix(
    f[0], f[3], 0, f[6],
    f[1], f[4], 0, f[7],
    0, 0, 1, 0,
    f[2], f[5], 0, f[8]
  );
  // clang-format on
}

createDlRadii()

flutter::DlRoundingRadii Skwasm::createDlRadii ( const float *  f )

inline

Definition at line 50 of file helpers.h.

                                                            {
  // Flutter has radii in TL,TR,BR,BL (clockwise) order,
  // but Impeller uses TL,TR,BL,BR (zig-zag) order
  impeller::RoundingRadii radii = {
      .top_left = flutter::DlSize(f[0], f[1]),
      .top_right = flutter::DlSize(f[2], f[3]),
      .bottom_left = flutter::DlSize(f[6], f[7]),
      .bottom_right = flutter::DlSize(f[4], f[5]),
  };
  return radii;
}

References impeller::RoundingRadii::top_left.

Referenced by createDlRRect().

createDlRect()

flutter::DlRect Skwasm::createDlRect ( const float *  f )

inline

Definition at line 46 of file helpers.h.

                                                  {
  return flutter::DlRect::MakeLTRB(f[0], f[1], f[2], f[3]);
}

References impeller::TRect< Scalar >::MakeLTRB().

Referenced by createDlRRect().

createDlRRect()

flutter::DlRoundRect Skwasm::createDlRRect ( const float *  f )

inline

Definition at line 62 of file helpers.h.

                                                        {
  return flutter::DlRoundRect::MakeRectRadii(createDlRect(f),
                                             createDlRadii(f + 4));
}

References createDlRadii(), createDlRect(), and impeller::RoundRect::MakeRectRadii().

createSkMatrix()

SkMatrix Skwasm::createSkMatrix ( const SkScalar *  f )

inline

Definition at line 41 of file helpers.h.

                                                  {
  return SkMatrix::MakeAll(f[0], f[1], f[2], f[3], f[4], f[5], f[6], f[7],
                           f[8]);
}

createSkRRect()

SkRRect Skwasm::createSkRRect ( const SkScalar *  f )

inline

Definition at line 67 of file helpers.h.

                                                {
  const SkRect* rect = reinterpret_cast<const SkRect*>(f);
  const SkVector* radiiValues = reinterpret_cast<const SkVector*>(f + 4);
  SkRRect rr;
  rr.setRectRadii(*rect, radiiValues);
  return rr;
}

filterModeForQuality()

flutter::DlFilterMode Skwasm::filterModeForQuality ( FilterQuality  quality )

inline

Definition at line 83 of file helpers.h.

                                                                       {
  switch (quality) {
    case FilterQuality::none:
      return flutter::DlFilterMode::kNearest;
    case FilterQuality::low:
    case FilterQuality::medium:
    case FilterQuality::high:
      return flutter::DlFilterMode::kLinear;
  }
}

References high, flutter::kLinear, flutter::kNearest, low, medium, and none.

makeCurrent()

void Skwasm::makeCurrent ( EMSCRIPTEN_WEBGL_CONTEXT_HANDLE  handle )

inline

Definition at line 24 of file wrappers.h.

                                                                {
  if (!handle)
    return;
 
  int result = emscripten_webgl_make_context_current(handle);
  if (result != EMSCRIPTEN_RESULT_SUCCESS) {
    printf("make_context failed: %d", result);
  }
}

samplingOptionsForQuality()

flutter::DlImageSampling Skwasm::samplingOptionsForQuality ( FilterQuality  quality )

inline

Definition at line 94 of file helpers.h.

                           {
  switch (quality) {
    case FilterQuality::none:
      return flutter::DlImageSampling::kNearestNeighbor;
    case FilterQuality::low:
      return flutter::DlImageSampling::kLinear;
    case FilterQuality::medium:
      return flutter::DlImageSampling::kMipmapLinear;
    case FilterQuality::high:
      return flutter::DlImageSampling::kCubic;
  }
}

References high, flutter::kCubic, flutter::kLinear, flutter::kMipmapLinear, flutter::kNearestNeighbor, low, medium, and none.