static sk_sp<SkColorFilter> make_color_filter() {
switch (R(6)) {
case 0: {
SkScalar array[20];
for (int i = 0; i < 20; ++i) {
array[i] = make_scalar();
}
return SkColorFilter::MakeMatrixFilterRowMajor255(array);
}
case 1:
return SkLumaColorFilter::Make();
case 2: {
uint8_t tableA[256];
uint8_t tableR[256];
uint8_t tableG[256];
uint8_t tableB[256];
rand_color_table(tableA);
rand_color_table(tableR);
rand_color_table(tableG);
rand_color_table(tableB);
return SkTableColorFilter::MakeARGB(tableA, tableR, tableG, tableB);
}
case 3:
return SkColorFilter::MakeModeFilter(make_color(), make_xfermode());
case 4:
return SkColorMatrixFilter::MakeLightingFilter(make_color(), make_color());
case 5:
default:
break;
}
return nullptr;
}
static SkPaint make_paint() {
SkPaint paint;
paint.setHinting(make_paint_hinting());
paint.setAntiAlias(make_bool());
paint.setDither(make_bool());
paint.setLinearText(make_bool());
paint.setSubpixelText(make_bool());
paint.setLCDRenderText(make_bool());
paint.setEmbeddedBitmapText(make_bool());
paint.setAutohinted(make_bool());
paint.setVerticalText(make_bool());
paint.setUnderlineText(make_bool());
paint.setStrikeThruText(make_bool());
paint.setFakeBoldText(make_bool());
paint.setDevKernText(make_bool());
paint.setFilterQuality(make_filter_quality());
paint.setStyle(make_paint_style());
paint.setColor(make_color());
paint.setStrokeWidth(make_scalar());
paint.setStrokeMiter(make_scalar());
paint.setStrokeCap(make_paint_cap());
paint.setStrokeJoin(make_paint_join());
paint.setColorFilter(make_color_filter());
paint.setXfermodeMode(make_xfermode());
paint.setPathEffect(make_path_effect());
paint.setMaskFilter(make_mask_filter());
if (false) {
// our validating buffer does not support typefaces yet, so skip this for now
SkAutoTUnref<SkTypeface> typeface(
SkTypeface::CreateFromName(make_font_name().c_str(), make_typeface_style()));
paint.setTypeface(typeface);
}
SkLayerRasterizer::Builder rasterizerBuilder;
SkPaint paintForRasterizer;
if (R(2) == 1) {
paintForRasterizer = make_paint();
}
rasterizerBuilder.addLayer(paintForRasterizer);
paint.setRasterizer(rasterizerBuilder.detach());
paint.setImageFilter(make_image_filter());
sk_sp<SkData> data(make_3Dlut(nullptr, make_bool(), make_bool(), make_bool()));
paint.setTextAlign(make_paint_align());
paint.setTextSize(make_scalar());
paint.setTextScaleX(make_scalar());
paint.setTextSkewX(make_scalar());
paint.setTextEncoding(make_paint_text_encoding());
return paint;
}
static SkPaint make_paint() {
SkPaint paint;
paint.setHinting(make_paint_hinting());
paint.setAntiAlias(make_bool());
paint.setDither(make_bool());
paint.setLinearText(make_bool());
paint.setSubpixelText(make_bool());
paint.setLCDRenderText(make_bool());
paint.setEmbeddedBitmapText(make_bool());
paint.setAutohinted(make_bool());
paint.setVerticalText(make_bool());
paint.setFakeBoldText(make_bool());
paint.setDevKernText(make_bool());
paint.setFilterQuality(make_filter_quality());
paint.setStyle(make_paint_style());
paint.setColor(make_color());
paint.setStrokeWidth(make_scalar());
paint.setStrokeMiter(make_scalar());
paint.setStrokeCap(make_paint_cap());
paint.setStrokeJoin(make_paint_join());
paint.setColorFilter(make_color_filter());
paint.setBlendMode(make_xfermode());
paint.setPathEffect(make_path_effect());
paint.setMaskFilter(make_mask_filter());
if (false) {
// our validating buffer does not support typefaces yet, so skip this for now
paint.setTypeface(SkTypeface::MakeFromName(make_font_name().c_str(),
make_typeface_style()));
}
paint.setImageFilter(make_image_filter());
sk_sp<SkData> data(make_3Dlut(nullptr, make_bool(), make_bool(), make_bool()));
paint.setTextAlign(make_paint_align());
paint.setTextSize(make_scalar());
paint.setTextScaleX(make_scalar());
paint.setTextSkewX(make_scalar());
paint.setTextEncoding(make_paint_text_encoding());
return paint;
}
static SkColorFilter* make_color_filter() {
SkColorFilter* colorFilter;
switch (R(6)) {
case 0: {
SkScalar array[20];
for (int i = 0; i < 20; ++i) {
array[i] = make_scalar();
}
colorFilter = SkColorMatrixFilter::Create(array);
break;
}
case 1:
colorFilter = SkLumaColorFilter::Create();
break;
case 2: {
uint8_t tableA[256];
uint8_t tableR[256];
uint8_t tableG[256];
uint8_t tableB[256];
rand_color_table(tableA);
rand_color_table(tableR);
rand_color_table(tableG);
rand_color_table(tableB);
colorFilter = SkTableColorFilter::CreateARGB(tableA, tableR, tableG, tableB);
break;
}
case 3:
colorFilter = SkColorFilter::CreateModeFilter(make_color(), make_xfermode());
break;
case 4:
colorFilter = SkColorMatrixFilter::CreateLightingFilter(make_color(), make_color());
break;
case 5:
default:
colorFilter = nullptr;
break;
}
return colorFilter;
}
static SkImageFilter* make_image_filter(bool canBeNull) {
SkImageFilter* filter = 0;
// Add a 1 in 3 chance to get a nullptr input
if (canBeNull && (R(3) == 1)) { return filter; }
enum { ALPHA_THRESHOLD, MERGE, COLOR, LUT3D, BLUR, MAGNIFIER,
DOWN_SAMPLE, XFERMODE, OFFSET, MATRIX, MATRIX_CONVOLUTION, COMPOSE,
DISTANT_LIGHT, POINT_LIGHT, SPOT_LIGHT, NOISE, DROP_SHADOW,
MORPHOLOGY, BITMAP, DISPLACE, TILE, PICTURE, PAINT, NUM_FILTERS };
switch (R(NUM_FILTERS)) {
case ALPHA_THRESHOLD:
filter = SkAlphaThresholdFilter::Create(make_region(), make_scalar(), make_scalar());
break;
case MERGE:
filter = SkMergeImageFilter::Create(make_image_filter(), make_image_filter(), make_xfermode());
break;
case COLOR:
{
SkAutoTUnref<SkColorFilter> cf(make_color_filter());
filter = cf.get() ? SkColorFilterImageFilter::Create(cf, make_image_filter()) : 0;
}
break;
case LUT3D:
{
int cubeDimension;
SkAutoDataUnref lut3D(make_3Dlut(&cubeDimension, (R(2) == 1), (R(2) == 1), (R(2) == 1)));
SkAutoTUnref<SkColorFilter> cf(SkColorCubeFilter::Create(lut3D, cubeDimension));
filter = cf.get() ? SkColorFilterImageFilter::Create(cf, make_image_filter()) : 0;
}
break;
case BLUR:
filter = SkBlurImageFilter::Create(make_scalar(true), make_scalar(true), make_image_filter());
break;
case MAGNIFIER:
filter = SkMagnifierImageFilter::Create(make_rect(), make_scalar(true));
break;
case DOWN_SAMPLE:
filter = SkDownSampleImageFilter::Create(make_scalar());
break;
case XFERMODE:
{
SkAutoTUnref<SkXfermode> mode(SkXfermode::Create(make_xfermode()));
filter = SkXfermodeImageFilter::Create(mode, make_image_filter(), make_image_filter());
}
break;
case OFFSET:
filter = SkOffsetImageFilter::Create(make_scalar(), make_scalar(), make_image_filter());
break;
case MATRIX:
filter = SkImageFilter::CreateMatrixFilter(make_matrix(),
(SkFilterQuality)R(4),
make_image_filter());
break;
case MATRIX_CONVOLUTION:
{
SkImageFilter::CropRect cropR(SkRect::MakeWH(SkIntToScalar(kBitmapSize),
SkIntToScalar(kBitmapSize)));
SkISize size = SkISize::Make(R(10)+1, R(10)+1);
int arraySize = size.width() * size.height();
SkTArray<SkScalar> kernel(arraySize);
for (int i = 0; i < arraySize; ++i) {
kernel.push_back() = make_scalar();
}
SkIPoint kernelOffset = SkIPoint::Make(R(SkIntToScalar(size.width())),
R(SkIntToScalar(size.height())));
filter = SkMatrixConvolutionImageFilter::Create(size,
kernel.begin(),
make_scalar(),
make_scalar(),
kernelOffset,
(SkMatrixConvolutionImageFilter::TileMode)R(3),
R(2) == 1,
make_image_filter(),
&cropR);
}
break;
case COMPOSE:
filter = SkComposeImageFilter::Create(make_image_filter(), make_image_filter());
break;
case DISTANT_LIGHT:
filter = (R(2) == 1) ?
SkLightingImageFilter::CreateDistantLitDiffuse(make_point(),
make_color(), make_scalar(), make_scalar(), make_image_filter()) :
SkLightingImageFilter::CreateDistantLitSpecular(make_point(),
make_color(), make_scalar(), make_scalar(), SkIntToScalar(R(10)),
make_image_filter());
break;
case POINT_LIGHT:
filter = (R(2) == 1) ?
SkLightingImageFilter::CreatePointLitDiffuse(make_point(),
make_color(), make_scalar(), make_scalar(), make_image_filter()) :
SkLightingImageFilter::CreatePointLitSpecular(make_point(),
make_color(), make_scalar(), make_scalar(), SkIntToScalar(R(10)),
make_image_filter());
break;
case SPOT_LIGHT:
filter = (R(2) == 1) ?
SkLightingImageFilter::CreateSpotLitDiffuse(SkPoint3::Make(0, 0, 0),
make_point(), make_scalar(), make_scalar(), make_color(),
make_scalar(), make_scalar(), make_image_filter()) :
SkLightingImageFilter::CreateSpotLitSpecular(SkPoint3::Make(0, 0, 0),
make_point(), make_scalar(), make_scalar(), make_color(),
make_scalar(), make_scalar(), SkIntToScalar(R(10)), make_image_filter());
break;
case NOISE:
{
SkAutoTUnref<SkShader> shader((R(2) == 1) ?
SkPerlinNoiseShader::CreateFractalNoise(
make_scalar(true), make_scalar(true), R(10.0f), make_scalar()) :
SkPerlinNoiseShader::CreateTurbulence(
make_scalar(true), make_scalar(true), R(10.0f), make_scalar()));
SkPaint paint;
paint.setShader(shader);
SkImageFilter::CropRect cropR(SkRect::MakeWH(SkIntToScalar(kBitmapSize),
SkIntToScalar(kBitmapSize)));
filter = SkPaintImageFilter::Create(paint, &cropR);
}
break;
case DROP_SHADOW:
filter = SkDropShadowImageFilter::Create(make_scalar(), make_scalar(), make_scalar(true),
make_scalar(true), make_color(), make_shadow_mode(), make_image_filter(),
nullptr);
break;
case MORPHOLOGY:
if (R(2) == 1) {
filter = SkDilateImageFilter::Create(R(static_cast<float>(kBitmapSize)),
R(static_cast<float>(kBitmapSize)), make_image_filter());
} else {
filter = SkErodeImageFilter::Create(R(static_cast<float>(kBitmapSize)),
R(static_cast<float>(kBitmapSize)), make_image_filter());
}
break;
case BITMAP:
{
SkAutoTUnref<SkImage> image(SkImage::NewFromBitmap(make_bitmap()));
if (R(2) == 1) {
filter = SkImageSource::Create(image, make_rect(), make_rect(), kHigh_SkFilterQuality);
} else {
filter = SkImageSource::Create(image);
}
}
break;
case DISPLACE:
filter = SkDisplacementMapEffect::Create(make_channel_selector_type(),
make_channel_selector_type(), make_scalar(),
make_image_filter(false), make_image_filter());
break;
case TILE:
filter = SkTileImageFilter::Create(make_rect(), make_rect(), make_image_filter(false));
break;
case PICTURE:
{
SkRTreeFactory factory;
SkPictureRecorder recorder;
SkCanvas* recordingCanvas = recorder.beginRecording(SkIntToScalar(kBitmapSize),
SkIntToScalar(kBitmapSize),
&factory, 0);
drawSomething(recordingCanvas);
SkAutoTUnref<SkPicture> pict(recorder.endRecording());
filter = SkPictureImageFilter::Create(pict.get(), make_rect());
}
break;
case PAINT:
{
SkImageFilter::CropRect cropR(make_rect());
filter = SkPaintImageFilter::Create(make_paint(), &cropR);
}
default:
break;
}
return (filter || canBeNull) ? filter : make_image_filter(canBeNull);
}
