static void test_sweep_fuzzer(skiatest::Reporter*) {
static const SkColor gColors0[] = { 0x30303030, 0x30303030, 0x30303030 };
static const SkScalar gPos0[] = { -47919293023455565225163489280.0f, 0, 1 };
static const SkScalar gMatrix0[9] = {
1.12116716e-13f, 0 , 8.50489682e+16f,
4.1917041e-41f , 3.51369881e-23f, -2.54344271e-26f,
9.61111907e+17f, -3.35263808e-29f, -1.35659403e+14f
};
static const struct {
SkPoint fCenter;
const SkColor* fColors;
const SkScalar* fPos;
int fCount;
const SkScalar* fGlobalMatrix;
} gConfigs[] = {
{
{ 0, 0 },
gColors0,
gPos0,
SK_ARRAY_COUNT(gColors0),
gMatrix0
},
};
sk_sp<SkSurface> surface = SkSurface::MakeRasterN32Premul(100, 100);
SkCanvas* canvas = surface->getCanvas();
SkPaint paint;
for (const auto& config : gConfigs) {
paint.setShader(SkGradientShader::MakeSweep(config.fCenter.x(),
config.fCenter.y(),
config.fColors,
config.fPos,
config.fCount));
SkAutoCanvasRestore acr(canvas, false);
if (config.fGlobalMatrix) {
SkMatrix m;
m.set9(config.fGlobalMatrix);
canvas->save();
canvas->concat(m);
}
canvas->drawPaint(paint);
}
}
static void test_set9(skiatest::Reporter* reporter) {
SkMatrix m;
m.reset();
assert9(reporter, m, 1, 0, 0, 0, 1, 0, 0, 0, 1);
m.setScale(2, 3);
assert9(reporter, m, 2, 0, 0, 0, 3, 0, 0, 0, 1);
m.postTranslate(4, 5);
assert9(reporter, m, 2, 0, 4, 0, 3, 5, 0, 0, 1);
SkScalar buffer[9];
sk_bzero(buffer, sizeof(buffer));
buffer[SkMatrix::kMScaleX] = 1;
buffer[SkMatrix::kMScaleY] = 1;
buffer[SkMatrix::kMPersp2] = 1;
REPORTER_ASSERT(reporter, !m.isIdentity());
m.set9(buffer);
REPORTER_ASSERT(reporter, m.isIdentity());
}
// "Interesting" fuzzer values.
static void test_linear_fuzzer(skiatest::Reporter*) {
static const SkColor gColors0[] = { 0x30303030, 0x30303030 };
static const SkColor gColors1[] = { 0x30303030, 0x30303030, 0x30303030 };
static const SkScalar gPos1[] = { 0, 0, 1 };
static const SkScalar gMatrix0[9] = {
6.40969056e-10f, 0 , 6.40969056e-10f,
0 , 4.42539023e-39f, 6.40969056e-10f,
0 , 0 , 1
};
static const SkScalar gMatrix1[9] = {
-2.75294113f , 6.40969056e-10f, 6.40969056e-10f,
6.40969056e-10f, 6.40969056e-10f, -3.32810161e+24f,
6.40969056e-10f, 6.40969056e-10f, 0
};
static const SkScalar gMatrix2[9] = {
7.93481258e+17f, 6.40969056e-10f, 6.40969056e-10f,
6.40969056e-10f, 6.40969056e-10f, 6.40969056e-10f,
6.40969056e-10f, 6.40969056e-10f, 0.688235283f
};
static const SkScalar gMatrix3[9] = {
1.89180674e+11f, 6.40969056e-10f, 6.40969056e-10f,
6.40969056e-10f, 6.40969056e-10f, 6.40969056e-10f,
6.40969056e-10f, 11276.0469f , 8.12524808e+20f
};
static const struct {
SkPoint fPts[2];
const SkColor* fColors;
const SkScalar* fPos;
int fCount;
SkTileMode fTileMode;
uint32_t fFlags;
const SkScalar* fLocalMatrix;
const SkScalar* fGlobalMatrix;
} gConfigs[] = {
{
{{0, -2.752941f}, {0, 0}},
gColors0,
nullptr,
SK_ARRAY_COUNT(gColors0),
SkTileMode::kClamp,
0,
gMatrix0,
nullptr
},
{
{{4.42539023e-39f, -4.42539023e-39f}, {9.78041162e-15f, 4.42539023e-39f}},
gColors1,
gPos1,
SK_ARRAY_COUNT(gColors1),
SkTileMode::kClamp,
0,
nullptr,
gMatrix1
},
{
{{4.42539023e-39f, 6.40969056e-10f}, {6.40969056e-10f, 1.49237238e-19f}},
gColors1,
gPos1,
SK_ARRAY_COUNT(gColors1),
SkTileMode::kClamp,
0,
nullptr,
gMatrix2
},
{
{{6.40969056e-10f, 6.40969056e-10f}, {6.40969056e-10f, -0.688235283f}},
gColors0,
nullptr,
SK_ARRAY_COUNT(gColors0),
SkTileMode::kClamp,
0,
gMatrix3,
nullptr
},
};
sk_sp<SkColorSpace> srgb = SkColorSpace::MakeSRGB();
SkColorSpace* colorSpaces[] = {
nullptr, // hits the legacy gradient impl
srgb.get(), // triggers 4f/raster-pipeline
};
SkPaint paint;
for (auto colorSpace : colorSpaces) {
sk_sp<SkSurface> surface = SkSurface::MakeRaster(SkImageInfo::Make(100, 100,
kN32_SkColorType,
kPremul_SkAlphaType,
sk_ref_sp(colorSpace)));
SkCanvas* canvas = surface->getCanvas();
for (const auto& config : gConfigs) {
SkAutoCanvasRestore acr(canvas, false);
SkTLazy<SkMatrix> localMatrix;
if (config.fLocalMatrix) {
localMatrix.init();
localMatrix.get()->set9(config.fLocalMatrix);
}
paint.setShader(SkGradientShader::MakeLinear(config.fPts,
config.fColors,
config.fPos,
config.fCount,
config.fTileMode,
config.fFlags,
localMatrix.getMaybeNull()));
if (config.fGlobalMatrix) {
SkMatrix m;
m.set9(config.fGlobalMatrix);
canvas->save();
canvas->concat(m);
}
canvas->drawPaint(paint);
}
}
}