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Diffstat (limited to 'gm/tinybitmap.cpp')
-rw-r--r-- | gm/tinybitmap.cpp | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/gm/tinybitmap.cpp b/gm/tinybitmap.cpp new file mode 100644 index 0000000..d532b5b --- /dev/null +++ b/gm/tinybitmap.cpp @@ -0,0 +1,68 @@ + +/* + * 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 "gm.h" +#include "SkColorPriv.h" +#include "SkShader.h" +#include "SkCanvas.h" +#include "SkUtils.h" + +namespace skiagm { + +static SkBitmap make_bitmap() { + SkBitmap bm; + + SkColorTable* ctable = new SkColorTable(1); + SkPMColor* c = ctable->lockColors(); + c[0] = SkPackARGB32(0x80, 0x80, 0, 0); + ctable->unlockColors(true); + + bm.setConfig(SkBitmap::kIndex8_Config, 1, 1); + bm.allocPixels(ctable); + ctable->unref(); + + bm.lockPixels(); + *bm.getAddr8(0, 0) = 0; + bm.unlockPixels(); + return bm; +} + +class TinyBitmapGM : public GM { + SkBitmap fBM; +public: + TinyBitmapGM() { + this->setBGColor(0xFFDDDDDD); + fBM = make_bitmap(); + } + +protected: + SkString onShortName() { + return SkString("tinybitmap"); + } + + virtual SkISize onISize() { return make_isize(100, 100); } + + virtual void onDraw(SkCanvas* canvas) { + SkShader* s = + SkShader::CreateBitmapShader(fBM, SkShader::kRepeat_TileMode, + SkShader::kMirror_TileMode); + SkPaint paint; + paint.setAlpha(0x80); + paint.setShader(s)->unref(); + canvas->drawPaint(paint); + } + +private: + typedef GM INHERITED; +}; + +////////////////////////////////////////////////////////////////////////////// + +static GM* MyFactory(void*) { return new TinyBitmapGM; } +static GMRegistry reg(MyFactory); + +} |