skia2/gm/imageblur2.cpp
Mike Klein ea3f014e2b sk_tool_utils -> ToolUtils, and git clang-format
sk_tool_utils doesn't really fit the naming convention
the rest of code under tools/ tends to use.

Change-Id: I45326a174101c6eb4b6149e9c742f658f2fd23b1
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/202313
Auto-Submit: Mike Klein <mtklein@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2019-03-20 18:05:42 +00:00

60 lines
1.9 KiB
C++

/*
* Copyright 2011 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "SkBlurImageFilter.h"
#include "SkRandom.h"
#include "ToolUtils.h"
#include "gm.h"
// TODO deprecate imageblur
constexpr int kWidth = 500;
constexpr int kHeight = 500;
DEF_SIMPLE_GM(imageblur2, canvas, kWidth, kHeight) {
constexpr float kBlurSigmas[] = { 0.0, 0.3f, 0.5f, 2.0f, 32.0f, 80.0f };
const char* kTestStrings[] = {
"The quick`~",
"brown fox[]",
"jumped over",
"the lazy@#$",
"dog.{}!%^&",
"*()+=-\\'\"/",
};
constexpr int sigmaCount = SK_ARRAY_COUNT(kBlurSigmas);
constexpr int testStringCount = SK_ARRAY_COUNT(kTestStrings);
constexpr SkScalar dx = kWidth / sigmaCount;
constexpr SkScalar dy = kHeight / sigmaCount;
constexpr SkScalar textSize = 12;
SkFont font(ToolUtils::create_portable_typeface(), textSize);
font.setEdging(SkFont::Edging::kAlias);
for (int x = 0; x < sigmaCount; x++) {
SkScalar sigmaX = kBlurSigmas[x];
for (int y = 0; y < sigmaCount; y++) {
SkScalar sigmaY = kBlurSigmas[y];
SkPaint paint;
paint.setImageFilter(SkBlurImageFilter::Make(sigmaX, sigmaY, nullptr));
canvas->saveLayer(nullptr, &paint);
SkRandom rand;
SkPaint textPaint;
textPaint.setColor(ToolUtils::color_to_565(rand.nextBits(24) | 0xFF000000));
for (int i = 0; i < testStringCount; i++) {
canvas->drawString(kTestStrings[i],
SkIntToScalar(x * dx),
SkIntToScalar(y * dy + textSize * i + textSize),
font,
textPaint);
}
canvas->restore();
}
}
}