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- /*
- * Copyright 2017 Google Inc.
- *
- * Use of this source code is governed by a BD-style license that can be
- * found in the LICENSE file.
- */
- #include "gm/gm.h"
- #include "include/core/SkBlurTypes.h"
- #include "include/core/SkCanvas.h"
- #include "include/core/SkColor.h"
- #include "include/core/SkFont.h"
- #include "include/core/SkMaskFilter.h"
- #include "include/core/SkPaint.h"
- #include "include/core/SkRRect.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/SkTypeface.h"
- #include "include/core/SkTypes.h"
- #include "src/core/SkBlurMask.h"
- #include "tools/ToolUtils.h"
- // This GM tests out the SkBlurMaskFilter's kIgnoreTransform flag. That flag causes the blur mask
- // filter to not apply the CTM to the blur's radius.
- class BlurIgnoreXformGM : public skiagm::GM {
- public:
- enum class DrawType {
- kCircle,
- kRect,
- kRRect,
- };
- BlurIgnoreXformGM(DrawType drawType) : fDrawType(drawType) { }
- protected:
- bool runAsBench() const override { return true; }
- SkString onShortName() override {
- SkString name;
- name.printf("blur_ignore_xform_%s",
- DrawType::kCircle == fDrawType ? "circle"
- : DrawType::kRect == fDrawType ? "rect" : "rrect");
- return name;
- }
- SkISize onISize() override {
- return SkISize::Make(375, 475);
- }
- void onOnceBeforeDraw() override {
- for (int i = 0; i < kNumBlurs; ++i) {
- fBlurFilters[i] = SkMaskFilter::MakeBlur(
- kNormal_SkBlurStyle,
- SkBlurMask::ConvertRadiusToSigma(SkIntToScalar(20)),
- kBlurFlags[i].fRespectCTM);
- }
- }
- void onDraw(SkCanvas* canvas) override {
- SkPaint paint;
- paint.setColor(SK_ColorBLACK);
- paint.setAntiAlias(true);
- canvas->translate(10, 25);
- canvas->save();
- canvas->translate(80, 0);
- for (size_t i = 0; i < kNumBlurs; ++i) {
- SkAutoCanvasRestore autoRestore(canvas, true);
- canvas->translate(SkIntToScalar(i * 150), 0);
- for (auto scale : kMatrixScales) {
- canvas->save();
- canvas->scale(scale.fScale, scale.fScale);
- static const SkScalar kRadius = 20.0f;
- SkScalar coord = 50.0f * 1.0f / scale.fScale;
- SkRect rect = SkRect::MakeXYWH(coord - kRadius , coord - kRadius,
- 2 * kRadius, 2 * kRadius);
- SkRRect rrect = SkRRect::MakeRectXY(rect, kRadius/2.0f, kRadius/2.0f);
- paint.setMaskFilter(fBlurFilters[i]);
- for (int j = 0; j < 2; ++j) {
- canvas->save();
- canvas->translate(10 * (1 - j), 10 * (1 - j));
- if (DrawType::kCircle == fDrawType) {
- canvas->drawCircle(coord, coord, kRadius, paint);
- } else if (DrawType::kRect == fDrawType) {
- canvas->drawRect(rect, paint);
- } else {
- canvas->drawRRect(rrect, paint);
- }
- paint.setMaskFilter(nullptr);
- canvas->restore();
- }
- canvas->restore();
- canvas->translate(0, SkIntToScalar(150));
- }
- }
- canvas->restore();
- if (kBench_Mode != this->getMode()) {
- this->drawOverlay(canvas);
- }
- }
- void drawOverlay(SkCanvas* canvas) {
- canvas->translate(10, 0);
- SkFont font(ToolUtils::create_portable_typeface());
- canvas->save();
- for (int i = 0; i < kNumBlurs; ++i) {
- canvas->drawString(kBlurFlags[i].fName, 100, 0, font, SkPaint());
- canvas->translate(SkIntToScalar(130), 0);
- }
- canvas->restore();
- for (auto scale : kMatrixScales) {
- canvas->drawString(scale.fName, 0, 50, font, SkPaint());
- canvas->translate(0, SkIntToScalar(150));
- }
- }
- private:
- static constexpr int kNumBlurs = 2;
- static const struct BlurFlags {
- bool fRespectCTM;
- const char* fName;
- } kBlurFlags[kNumBlurs];
- static const struct MatrixScale {
- float fScale;
- const char* fName;
- } kMatrixScales[3];
- DrawType fDrawType;
- sk_sp<SkMaskFilter> fBlurFilters[kNumBlurs];
- typedef skiagm::GM INHERITED;
- };
- const BlurIgnoreXformGM::BlurFlags BlurIgnoreXformGM::kBlurFlags[] = {
- {true, "none"},
- {false, "IgnoreTransform"}
- };
- const BlurIgnoreXformGM::MatrixScale BlurIgnoreXformGM::kMatrixScales[] = {
- {1.0f, "Identity"},
- {0.5f, "Scale = 0.5"},
- {2.0f, "Scale = 2.0"}
- };
- DEF_GM(return new BlurIgnoreXformGM(BlurIgnoreXformGM::DrawType::kCircle);)
- DEF_GM(return new BlurIgnoreXformGM(BlurIgnoreXformGM::DrawType::kRect);)
- DEF_GM(return new BlurIgnoreXformGM(BlurIgnoreXformGM::DrawType::kRRect);)
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