diff options
Diffstat (limited to 'chromium/third_party/skia/gm/morphology.cpp')
-rw-r--r-- | chromium/third_party/skia/gm/morphology.cpp | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/chromium/third_party/skia/gm/morphology.cpp b/chromium/third_party/skia/gm/morphology.cpp new file mode 100644 index 00000000000..ff6c1bac6c8 --- /dev/null +++ b/chromium/third_party/skia/gm/morphology.cpp @@ -0,0 +1,105 @@ +/* + * Copyright 2012 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#include "gm.h" +#include "SkMorphologyImageFilter.h" + +#define WIDTH 700 +#define HEIGHT 560 + +namespace skiagm { + +class MorphologyGM : public GM { +public: + MorphologyGM() { + this->setBGColor(0xFF000000); + fOnce = false; + } + +protected: + virtual SkString onShortName() { + return SkString("morphology"); + } + + void make_bitmap() { + fBitmap.allocN32Pixels(135, 135); + SkCanvas canvas(fBitmap); + canvas.clear(0x0); + SkPaint paint; + paint.setAntiAlias(true); + const char* str1 = "ABC"; + const char* str2 = "XYZ"; + paint.setColor(0xFFFFFFFF); + paint.setTextSize(64); + canvas.drawText(str1, strlen(str1), 10, 55, paint); + canvas.drawText(str2, strlen(str2), 10, 110, paint); + } + + virtual SkISize onISize() { + return SkISize::Make(WIDTH, HEIGHT); + } + + void drawClippedBitmap(SkCanvas* canvas, const SkPaint& paint, int x, int y) { + canvas->save(); + canvas->translate(SkIntToScalar(x), SkIntToScalar(y)); + canvas->clipRect(SkRect::MakeWH( + SkIntToScalar(fBitmap.width()), SkIntToScalar(fBitmap.height()))); + canvas->drawBitmap(fBitmap, 0, 0, &paint); + canvas->restore(); + } + + virtual void onDraw(SkCanvas* canvas) { + if (!fOnce) { + make_bitmap(); + fOnce = true; + } + struct { + int fWidth, fHeight; + int fRadiusX, fRadiusY; + } samples[] = { + { 140, 140, 0, 0 }, + { 140, 140, 0, 2 }, + { 140, 140, 2, 0 }, + { 140, 140, 2, 2 }, + { 24, 24, 25, 25 }, + }; + SkPaint paint; + SkImageFilter::CropRect cropRect(SkRect::MakeXYWH(25, 20, 100, 80)); + + for (unsigned j = 0; j < 4; ++j) { + for (unsigned i = 0; i < SK_ARRAY_COUNT(samples); ++i) { + const SkImageFilter::CropRect* cr = j & 0x02 ? &cropRect : NULL; + if (j & 0x01) { + paint.setImageFilter(SkErodeImageFilter::Create( + samples[i].fRadiusX, + samples[i].fRadiusY, + NULL, + cr))->unref(); + } else { + paint.setImageFilter(SkDilateImageFilter::Create( + samples[i].fRadiusX, + samples[i].fRadiusY, + NULL, + cr))->unref(); + } + drawClippedBitmap(canvas, paint, i * 140, j * 140); + } + } + } + +private: + typedef GM INHERITED; + SkBitmap fBitmap; + bool fOnce; +}; + +////////////////////////////////////////////////////////////////////////////// + +static GM* MyFactory(void*) { return new MorphologyGM; } +static GMRegistry reg(MyFactory); + +} |