68 lines
1.9 KiB
C++
68 lines
1.9 KiB
C++
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#include "SampleCode.h"
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#include "SkView.h"
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#include "SkCanvas.h"
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#include "SkImageDecoder.h"
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#include "SkStream.h"
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static const struct {
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SkBitmap::Config fPrefConfig;
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bool fDither;
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} gRec[] = {
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{ SkBitmap::kIndex8_Config, false },
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{ SkBitmap::kARGB_8888_Config, false },
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{ SkBitmap::kARGB_4444_Config, false },
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{ SkBitmap::kARGB_4444_Config, true },
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{ SkBitmap::kRGB_565_Config, false },
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{ SkBitmap::kRGB_565_Config, true },
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};
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class DecodeView : public SkView {
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public:
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SkBitmap fBitmap[SK_ARRAY_COUNT(gRec)];
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DecodeView() {
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SkFILEStream stream("/skimages/index.png");
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SkImageDecoder* codec = SkImageDecoder::Factory(&stream);
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for (size_t i = 0; i < SK_ARRAY_COUNT(gRec); i++) {
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stream.rewind();
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codec->setDitherImage(gRec[i].fDither);
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codec->decode(&stream, &fBitmap[i], gRec[i].fPrefConfig,
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SkImageDecoder::kDecodePixels_Mode);
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}
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}
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protected:
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// overrides from SkEventSink
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virtual bool onQuery(SkEvent* evt) {
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if (SampleCode::TitleQ(*evt)) {
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SampleCode::TitleR(evt, "ImageDecoder");
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return true;
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}
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return this->INHERITED::onQuery(evt);
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}
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void drawBG(SkCanvas* canvas) {
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canvas->drawColor(0xFFDDDDDD);
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// canvas->drawColor(SK_ColorWHITE);
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}
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virtual void onDraw(SkCanvas* canvas) {
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this->drawBG(canvas);
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canvas->translate(SkIntToScalar(10), SkIntToScalar(20));
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for (size_t i = 0; i < SK_ARRAY_COUNT(fBitmap); i++) {
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canvas->drawBitmap(fBitmap[i], 0, 0);
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canvas->translate(SkIntToScalar(fBitmap[i].width()), 0);
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}
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}
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private:
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typedef SkView INHERITED;
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};
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//////////////////////////////////////////////////////////////////////////////
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static SkView* MyFactory() { return new DecodeView; }
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static SkViewRegister reg(MyFactory);
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