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| author |  fmalita <fmalita@chromium.org> | 2016-11-01 13:41:34 -0700 |
|---|---|---|
| committer |  Commit bot <commit-bot@chromium.org> | 2016-11-01 13:41:34 -0700 |
| commit | afac581523af9de5e0af0af1dc128cac1b846006 (patch) | |
| tree | c4c8965d894e64eae842ad4a6bc0205b3d24c465 /gm/gradients.cpp | |
| parent | 08ed0d4926e65f41e6db57dbf72efc871eb4d51e (diff) | |
Sk4fLinearGradient fuzzer fixes
1) update in_range() to actually follow the documented rules regarding interval
open/close endpoints
2) detect cases where the intervals provide negligible advance and fall back
to using a color average
BUG=skia:5647
R=reed@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2472483002
Review-Url: https://codereview.chromium.org/2472483002
Diffstat (limited to 'gm/gradients.cpp')
| -rw-r--r-- | gm/gradients.cpp | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/gm/gradients.cpp b/gm/gradients.cpp index 45b6564a64..8ae1dd7901 100644 --- a/gm/gradients.cpp +++ b/gm/gradients.cpp @@ -919,3 +919,20 @@ DEF_SIMPLE_GM(gradient_many_stops, canvas, 500, 500) { DEF_SIMPLE_GM(gradient_many_stops_4f, canvas, 500, 500) { draw_many_stops(canvas, SkLinearGradient::kForce4fContext_PrivateFlag); } + +static void draw_subpixel_gradient(SkCanvas* canvas, uint32_t flags) { + const SkPoint pts[] = { {50, 50}, {50.1f, 50.1f}}; + SkColor colors[] = { SK_ColorRED, SK_ColorGREEN, SK_ColorBLUE }; + SkPaint p; + p.setShader(SkGradientShader::MakeLinear( + pts, colors, nullptr, SK_ARRAY_COUNT(colors), SkShader::kRepeat_TileMode, flags, nullptr)); + canvas->drawRect(SkRect::MakeXYWH(0, 0, 500, 500), p); +} + +DEF_SIMPLE_GM(gradient_subpixel, canvas, 500, 500) { + draw_subpixel_gradient(canvas, 0); +} + +DEF_SIMPLE_GM(gradient_subpixel_4f, canvas, 500, 500) { + draw_subpixel_gradient(canvas, SkLinearGradient::kForce4fContext_PrivateFlag); +} |