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| author |  Stephen White <senorblanco@chromium.org> | 2018-01-04 14:01:10 -0500 |
|---|---|---|
| committer |  Skia Commit-Bot <skia-commit-bot@chromium.org> | 2018-01-04 21:36:06 +0000 |
| commit | 94b7e5425683996c8bc3ca0e7b549ab7235c1180 (patch) | |
| tree | 0a6f412c2825118f754e5990c8d348a732b7fae0 /tests | |
| parent | 7397d7ade8b72f3b75e9384693aa59292a63fd68 (diff) | |
GrTessellator: fix for points which become non-finite on AA stroking.
If input points are near-infinite, they may become inf or NaN when
stroked. Before converting the results of intersection from double
to float, clamp them to the [-FLT_MAX/FLT_MAX] range.
BUG=798679
Change-Id: I7d61130dd26147a9b7cfd38aa96567e3867b5c3e
Reviewed-on: https://skia-review.googlesource.com/90983
Commit-Queue: Stephen White <senorblanco@chromium.org>
Reviewed-by: Brian Osman <brianosman@google.com>
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/TessellatingPathRendererTests.cpp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/tests/TessellatingPathRendererTests.cpp b/tests/TessellatingPathRendererTests.cpp index 42629457f2..6368c47ad4 100644 --- a/tests/TessellatingPathRendererTests.cpp +++ b/tests/TessellatingPathRendererTests.cpp @@ -406,6 +406,17 @@ static SkPath create_path_26() { return path; } + +// A path which results in non-finite points when stroked and bevelled for AA. +static SkPath create_path_27() { + SkPath path; + path.moveTo(8.5027233009104409507e+37, 1.7503381025241130639e+37); + path.lineTo(7.0923661737711584874e+37, 1.4600074517285415699e+37); + path.lineTo(7.0848733446033294691e+37, 1.4584649744781838604e+37); + path.lineTo(-2.0473916115129349496e+37, -4.2146796450364162012e+36); + path.lineTo(2.0473912312177548811e+37, 4.2146815465123165435e+36); + return path; +} static std::unique_ptr<GrFragmentProcessor> create_linear_gradient_processor(GrContext* ctx) { SkPoint pts[2] = { {0, 0}, {1, 1} }; @@ -495,5 +506,6 @@ DEF_GPUTEST_FOR_ALL_CONTEXTS(TessellatingPathRendererTests, reporter, ctxInfo) { test_path(ctx, rtc.get(), create_path_24()); test_path(ctx, rtc.get(), create_path_25(), SkMatrix(), GrAAType::kCoverage); test_path(ctx, rtc.get(), create_path_26(), SkMatrix(), GrAAType::kCoverage); + test_path(ctx, rtc.get(), create_path_27(), SkMatrix(), GrAAType::kCoverage); } #endif |