Skwasm Namespace Reference

Classes
struct	FlutterFontCollection
class	Surface
struct	SurfaceWrapper
class	TextureSourceWrapper

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

Functions
SkMatrix	createMatrix (const SkScalar *f)
SkRRect	createRRect (const SkScalar *f)
SkFilterMode	filterModeForQuality (FilterQuality quality)
SkSamplingOptions	samplingOptionsForQuality (FilterQuality quality)
void	makeCurrent (EMSCRIPTEN_WEBGL_CONTEXT_HANDLE handle)

Enumeration Type Documentation

FilterQuality

enum class Skwasm::FilterQuality

strong

Enumerator
none
low
medium
high

Definition at line 29 of file helpers.h.

                         {
  none,
  low,
  medium,
  high,
};

ImageByteFormat

enum class Skwasm::ImageByteFormat

strong

Enumerator
rawRgba
rawStraightRgba
rawUnmodified
png

Definition at line 30 of file surface.h.

                           {
  rawRgba,
  rawStraightRgba,
  rawUnmodified,
  png,
};

Function Documentation

createMatrix()

SkMatrix Skwasm::createMatrix ( const SkScalar *  f )

inline

Definition at line 14 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]);
}

createRRect()

SkRRect Skwasm::createRRect ( const SkScalar *  f )

inline

Definition at line 19 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()

SkFilterMode Skwasm::filterModeForQuality ( FilterQuality  quality )

inline

Definition at line 36 of file helpers.h.

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

makeCurrent()

void Skwasm::makeCurrent ( EMSCRIPTEN_WEBGL_CONTEXT_HANDLE  handle )

inline

Definition at line 22 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()

SkSamplingOptions Skwasm::samplingOptionsForQuality ( FilterQuality  quality )

inline

Definition at line 47 of file helpers.h.

                                                                          {
  switch (quality) {
    case FilterQuality::none:
      return SkSamplingOptions(SkFilterMode::kNearest, SkMipmapMode::kNone);
    case FilterQuality::low:
      return SkSamplingOptions(SkFilterMode::kLinear, SkMipmapMode::kNone);
    case FilterQuality::medium:
      return SkSamplingOptions(SkFilterMode::kLinear, SkMipmapMode::kLinear);
    case FilterQuality::high:
      // Cubic equation coefficients recommended by Mitchell & Netravali
      // in their paper on cubic interpolation.
      return SkSamplingOptions(SkCubicResampler::Mitchell());
  }
}