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- /*
- * 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/SkBitmap.h"
- #include "include/core/SkCanvas.h"
- #include "include/core/SkFilterQuality.h"
- #include "include/core/SkFont.h"
- #include "include/core/SkMatrix.h"
- #include "include/core/SkPaint.h"
- #include "include/core/SkRect.h"
- #include "include/core/SkScalar.h"
- #include "include/core/SkShader.h"
- #include "include/core/SkSize.h"
- #include "include/core/SkString.h"
- #include "include/core/SkTileMode.h"
- #include "include/core/SkTypeface.h"
- #include "include/core/SkTypes.h"
- #include "tools/ToolUtils.h"
- // Inspired by svg/as-border-image/svg-as-border-image.html. Draws a four-color checker board bitmap
- // such that it is stretched and repeat tiled with different filter qualities. It is testing whether
- // the bmp filter respects the repeat mode at the tile seams.
- class BmpFilterQualityRepeat : public skiagm::GM {
- public:
- BmpFilterQualityRepeat() { this->setBGColor(ToolUtils::color_to_565(0xFFCCBBAA)); }
- protected:
- void onOnceBeforeDraw() override {
- fBmp.allocN32Pixels(40, 40, true);
- SkCanvas canvas(fBmp);
- SkBitmap colorBmp;
- colorBmp.allocN32Pixels(20, 20, true);
- colorBmp.eraseColor(0xFFFF0000);
- canvas.drawBitmap(colorBmp, 0, 0);
- colorBmp.eraseColor(ToolUtils::color_to_565(0xFF008200));
- canvas.drawBitmap(colorBmp, 20, 0);
- colorBmp.eraseColor(ToolUtils::color_to_565(0xFFFF9000));
- canvas.drawBitmap(colorBmp, 0, 20);
- colorBmp.eraseColor(ToolUtils::color_to_565(0xFF2000FF));
- canvas.drawBitmap(colorBmp, 20, 20);
- }
- SkString onShortName() override { return SkString("bmp_filter_quality_repeat"); }
- SkISize onISize() override { return SkISize::Make(1000, 400); }
- void onDraw(SkCanvas* canvas) override {
- this->drawAll(canvas, 2.5f);
- canvas->translate(0, 250);
- canvas->scale(0.5, 0.5);
- this->drawAll(canvas, 1);
- }
- private:
- void drawAll(SkCanvas* canvas, SkScalar scaleX) const {
- constexpr struct {
- SkFilterQuality fQuality;
- const char* fName;
- } kQualities[] = {
- {kNone_SkFilterQuality, "none"},
- {kLow_SkFilterQuality, "low"},
- {kMedium_SkFilterQuality, "medium"},
- {kHigh_SkFilterQuality, "high"},
- };
- SkRect rect = SkRect::MakeLTRB(20, 60, 220, 210);
- SkMatrix lm = SkMatrix::I();
- lm.setScaleX(scaleX);
- lm.setTranslateX(423);
- lm.setTranslateY(330);
- SkPaint textPaint;
- textPaint.setAntiAlias(true);
- SkPaint bmpPaint(textPaint);
- SkFont font(ToolUtils::create_portable_typeface());
- SkAutoCanvasRestore acr(canvas, true);
- for (size_t q = 0; q < SK_ARRAY_COUNT(kQualities); ++q) {
- constexpr SkTileMode kTM = SkTileMode::kRepeat;
- bmpPaint.setShader(fBmp.makeShader(kTM, kTM, &lm));
- bmpPaint.setFilterQuality(kQualities[q].fQuality);
- canvas->drawRect(rect, bmpPaint);
- canvas->drawString(kQualities[q].fName, 20, 40, font, textPaint);
- canvas->translate(250, 0);
- }
- }
- SkBitmap fBmp;
- typedef skiagm::GM INHERITED;
- };
- //////////////////////////////////////////////////////////////////////////////
- DEF_GM(return new BmpFilterQualityRepeat;)
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