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Randomize the color of the checkerboard pattern per raster cache entry. (flutter/engine#3218)

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This commit is contained in:
Chinmay Garde 2016-11-10 18:21:12 -08:00 committed by GitHub
parent 8ed446e1d0
commit 77d1df9d19
1 changed files with 9 additions and 3 deletions
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12
engine/src/flutter/flow/raster_cache.cc
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@ -4,6 +4,8 @@
#include "flutter/flow/raster_cache.h"
#include <stdlib.h>
#include <vector>
#include "flutter/common/threads.h"
@ -49,13 +51,17 @@ static void DrawCheckerboard(SkCanvas* canvas, const SkRect& rect) {
// Draw a checkerboard
canvas->save();
canvas->clipRect(rect);
DrawCheckerboard(canvas, 0x4400FF00, 0x00000000, 12);
auto checkerboard_color =
SkColorSetARGBInline(64, rand() % 256, rand() % 256, rand() % 256);
DrawCheckerboard(canvas, checkerboard_color, 0x00000000, 12);
canvas->restore();
// Stroke the drawn area
SkPaint debugPaint;
debugPaint.setStrokeWidth(3);
debugPaint.setColor(SK_ColorRED);
debugPaint.setStrokeWidth(8);
debugPaint.setColor(SkColorSetA(checkerboard_color, 255));
debugPaint.setStyle(SkPaint::kStroke_Style);
canvas->drawRect(rect, debugPaint);
}