skia2/gm/lcdoverlap.cpp
Ben Wagner 7fde8e1728 IWYU for gms.
This almost gets gms to be iwyu clean. The last bit is around gm.cpp
and the tracing framework and its use of atomic. Will also need a way
of keeping things from regressing, which is difficult due to needing to
do this outside-in.

Change-Id: I1393531e99da8b0f1a29f55c53c86d53f459af7d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/211593
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
2019-05-02 17:48:53 +00:00

101 lines
3.1 KiB
C++

/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "gm/gm.h"
#include "include/core/SkBlendMode.h"
#include "include/core/SkCanvas.h"
#include "include/core/SkColor.h"
#include "include/core/SkFont.h"
#include "include/core/SkPaint.h"
#include "include/core/SkRect.h"
#include "include/core/SkRefCnt.h"
#include "include/core/SkScalar.h"
#include "include/core/SkSize.h"
#include "include/core/SkString.h"
#include "include/core/SkTextBlob.h"
#include "include/core/SkTypeface.h"
#include "include/core/SkTypes.h"
#include "tools/ToolUtils.h"
namespace skiagm {
constexpr int kWidth = 750;
constexpr int kHeight = 750;
class LcdOverlapGM : public skiagm::GM {
public:
LcdOverlapGM() {
const int kPointSize = 25;
fTextHeight = SkIntToScalar(kPointSize);
}
protected:
SkString onShortName() override {
return SkString("lcdoverlap");
}
void onOnceBeforeDraw() override {
// build text blob
SkTextBlobBuilder builder;
SkFont font(ToolUtils::create_portable_typeface(), 32);
const char* text = "able was I ere I saw elba";
font.setSubpixel(true);
font.setEdging(SkFont::Edging::kSubpixelAntiAlias);
// If we use SkTextBlob::MakeFromText, we get very different positioning ... why?
ToolUtils::add_to_text_blob(&builder, text, font, 0, 0);
fBlob = builder.make();
}
SkISize onISize() override { return SkISize::Make(kWidth, kHeight); }
void drawTestCase(SkCanvas* canvas, SkScalar x, SkScalar y, SkBlendMode mode,
SkBlendMode mode2) {
const SkColor colors[] {
SK_ColorRED,
SK_ColorGREEN,
SK_ColorBLUE,
SK_ColorYELLOW,
SK_ColorCYAN,
SK_ColorMAGENTA,
};
for (size_t i = 0; i < SK_ARRAY_COUNT(colors); i++) {
canvas->save();
canvas->translate(x, y);
canvas->rotate(360.0f / SK_ARRAY_COUNT(colors) * i);
canvas->translate(-fBlob->bounds().width() / 2.0f + 0.5f, 0);
SkPaint textPaint;
textPaint.setColor(colors[i]);
textPaint.setBlendMode(i % 2 == 0 ? mode : mode2);
canvas->drawTextBlob(fBlob, 0, 0, textPaint);
canvas->restore();
}
}
void onDraw(SkCanvas* canvas) override {
SkScalar offsetX = kWidth / 4.0f;
SkScalar offsetY = kHeight / 4.0f;
drawTestCase(canvas, offsetX, offsetY, SkBlendMode::kSrc, SkBlendMode::kSrc);
drawTestCase(canvas, 3 * offsetX, offsetY, SkBlendMode::kSrcOver, SkBlendMode::kSrcOver);
drawTestCase(canvas, offsetX, 3 * offsetY, SkBlendMode::kHardLight,
SkBlendMode::kLuminosity);
drawTestCase(canvas, 3 * offsetX, 3 * offsetY, SkBlendMode::kSrcOver, SkBlendMode::kSrc);
}
private:
SkScalar fTextHeight;
sk_sp<SkTextBlob> fBlob;
typedef skiagm::GM INHERITED;
};
//////////////////////////////////////////////////////////////////////////////
DEF_GM( return new LcdOverlapGM; )
}