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[fuzzing] Paint SkParagraph.

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Bug: skia:10894
Change-Id: I5663f126467a7ff9027955de4eee0fcc7967d94a
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/367878
Reviewed-by: Kevin Lubick <kjlubick@google.com>
Commit-Queue: Weston Tracey <westont@google.com>
This commit is contained in:
Weston Tracey 2021-02-08 14:02:53 -05:00 committed by Skia Commit-Bot
parent dfa269f1cd
commit 3dd203d7bd
1 changed files with 11 additions and 3 deletions
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14
fuzz/FuzzSkParagraph.cpp
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@ -56,7 +56,8 @@ using namespace skia::textlayout;
namespace {
const uint8_t MAX_TEXT_LENGTH = 255;
const uint8_t MAX_TEXT_ADDITIONS = 4;
const uint16_t TEST_CANVAS_WIDTH = 1000;
// Use 250 so uint8 can create text and layout width larger than the canvas.
const uint16_t TEST_CANVAS_DIM = 250;
class ResourceFontCollection : public FontCollection {
public:
@ -269,6 +270,13 @@ DEF_FUZZ(SkParagraph, fuzz) {
builder.pop();
auto paragraph = builder.Build();
paragraph->layout(TEST_CANVAS_WIDTH);
SkBitmap bm;
if (!bm.tryAllocN32Pixels(TEST_CANVAS_DIM, TEST_CANVAS_DIM)) {
return;
}
SkCanvas canvas(bm);
uint8_t layout_width;
fuzz->next(&layout_width);
paragraph->layout(layout_width);
paragraph->paint(&canvas, 0, 0);
}