samplecode/SampleImageDir.cpp - platform/external/skia - Gitiles


 /*
  * 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 "SampleCode.h"
 #include "SkView.h"
 #include "SkCanvas.h"
 #include "SkGradientShader.h"
 #include "SkGraphics.h"
 #include "SkImageDecoder.h"
 #include "SkPath.h"
 #include "SkRegion.h"
 #include "SkShader.h"
 #include "SkUtils.h"
 #include "SkXfermode.h"
 #include "SkComposeShader.h"
 #include "SkColorPriv.h"
 #include "SkColorFilter.h"
 #include "SkTime.h"
 #include "SkTypeface.h"

 #include "SkImageRef_GlobalPool.h"
 #include "SkOSFile.h"
 #include "SkStream.h"

 #include "SkBlurDrawLooper.h"
 #include "SkColorMatrixFilter.h"

 static void drawmarshmallow(SkCanvas* canvas) {
     SkBitmap bitmap;
     SkPaint paint;
     SkRect r;
     SkMatrix m;

     SkImageDecoder::DecodeFile("/Users/reed/Downloads/3elfs.jpg", &bitmap);
     if (!bitmap.pixelRef()) {
         return;
     }

     SkShader* s = SkShader::CreateBitmapShader(bitmap,
                                                SkShader::kRepeat_TileMode,
                                                SkShader::kRepeat_TileMode);
     paint.setShader(s)->unref();
     m.setTranslate(SkIntToScalar(250), SkIntToScalar(134));
     s->setLocalMatrix(m);

     r.set(SkIntToScalar(250),
           SkIntToScalar(134),
           SkIntToScalar(250 + 449),
           SkIntToScalar(134 + 701));
     paint.setFlags(2);

     canvas->drawRect(r, paint);
 }

 static void DrawRoundRect(SkCanvas& canvas) {
    bool ret = false;
    SkPaint  paint;
    SkBitmap bitmap;
    SkMatrix matrix;
    matrix.reset();

    bitmap.setConfig(SkBitmap::kARGB_8888_Config, 1370, 812);
    bitmap.allocPixels();
 #if 0
     SkCanvas canvas;
     canvas.setBitmapDevice(bitmap);
 #endif

    // set up clipper
    SkRect skclip;
    skclip.set(SkIntToScalar(284), SkIntToScalar(40), SkIntToScalar(1370), SkIntToScalar(708));

 //   ret = canvas.clipRect(skclip);
 //   SkASSERT(ret);

    matrix.set(SkMatrix::kMTransX, SkFloatToScalar(-1153.28f));
    matrix.set(SkMatrix::kMTransY, SkFloatToScalar(1180.50f));

    matrix.set(SkMatrix::kMScaleX, SkFloatToScalar(0.177171f));
    matrix.set(SkMatrix::kMScaleY, SkFloatToScalar(0.177043f));

    matrix.set(SkMatrix::kMSkewX, SkFloatToScalar(0.126968f));
    matrix.set(SkMatrix::kMSkewY, SkFloatToScalar(-0.126876f));

    matrix.set(SkMatrix::kMPersp0, SkFloatToScalar(0.0f));
    matrix.set(SkMatrix::kMPersp1, SkFloatToScalar(0.0f));

    ret = canvas.concat(matrix);

    paint.setAntiAlias(true);
    paint.setColor(0xb2202020);
    paint.setStyle(SkPaint::kStroke_Style);
    paint.setStrokeWidth(SkFloatToScalar(68.13f));

    SkRect r;
    r.set(SkFloatToScalar(-313.714417f), SkFloatToScalar(-4.826389f), SkFloatToScalar(18014.447266f), SkFloatToScalar(1858.154541f));
    canvas.drawRoundRect(r, SkFloatToScalar(91.756363f), SkFloatToScalar(91.756363f), paint);
 }

 static bool SetImageRef(SkBitmap* bitmap, SkStream* stream,
                         SkBitmap::Config pref, const char name[] = NULL) {
 #if 0
     // test buffer streams
     SkStream* str = new SkBufferStream(stream, 717);
     stream->unref();
     stream = str;
 #endif

     SkImageRef* ref = new SkImageRef_GlobalPool(stream, pref, 1);
     ref->setURI(name);
     if (!ref->getInfo(bitmap)) {
         delete ref;
         return false;
     }
     bitmap->setPixelRef(ref)->unref();
     return true;
 }

 //#define SPECIFIC_IMAGE  "/skimages/72.jpg"
 #define SPECIFIC_IMAGE  "/Users/reed/Downloads/3elfs.jpg"

 #define IMAGE_DIR       "/skimages/"
 #define IMAGE_SUFFIX    ".gif"

 class ImageDirView : public SkView {
 public:
     SkBitmap*   fBitmaps;
     SkString*   fStrings;
     int         fBitmapCount;
     int         fCurrIndex;
     SkScalar    fSaturation;
     SkScalar    fAngle;

 	ImageDirView() {
         SkImageRef_GlobalPool::SetRAMBudget(320 * 1024);

 #ifdef SPECIFIC_IMAGE
         fBitmaps = new SkBitmap[3];
         fStrings = new SkString[3];
         fBitmapCount = 3;
         const SkBitmap::Config configs[] = {
             SkBitmap::kARGB_8888_Config,
             SkBitmap::kRGB_565_Config,
             SkBitmap::kARGB_4444_Config
         };
         for (int i = 0; i < fBitmapCount; i++) {
 #if 1
             SkStream* stream = new SkFILEStream(SPECIFIC_IMAGE);
             SetImageRef(&fBitmaps[i], stream, configs[i], SPECIFIC_IMAGE);
             stream->unref();
 #else
             SkImageDecoder::DecodeFile(SPECIFIC_IMAGE, &fBitmaps[i]);
 #endif
         }
 #else
         int i, N = 0;
         SkOSFile::Iter  iter(IMAGE_DIR, IMAGE_SUFFIX);
         SkString    name;
         while (iter.next(&name)) {
             N += 1;
         }
         fBitmaps = new SkBitmap[N];
         fStrings = new SkString[N];
         iter.reset(IMAGE_DIR, IMAGE_SUFFIX);
         for (i = 0; i < N; i++) {
             iter.next(&name);
             SkString path(IMAGE_DIR);
             path.append(name);
             SkStream* stream = new SkFILEStream(path.c_str());

             SetImageRef(&fBitmaps[i], stream, SkBitmap::kNo_Config,
                         name.c_str());
             stream->unref();
             fStrings[i] = name;
         }
         fBitmapCount = N;
 #endif
         fCurrIndex = 0;
         fDX = fDY = 0;

         fSaturation = SK_Scalar1;
         fAngle = 0;

         fScale = SK_Scalar1;
     }

     virtual ~ImageDirView() {
         delete[] fBitmaps;
         delete[] fStrings;

         SkImageRef_GlobalPool::DumpPool();
     }

 protected:
     // overrides from SkEventSink
     virtual bool onQuery(SkEvent* evt) {
         if (SampleCode::TitleQ(*evt)) {
             SkString str("ImageDir: ");
 #ifdef SPECIFIC_IMAGE
             str.append(SPECIFIC_IMAGE);
 #else
             str.append(IMAGE_DIR);
 #endif
             SampleCode::TitleR(evt, str.c_str());
             return true;
         }
         return this->INHERITED::onQuery(evt);
     }

     void drawBG(SkCanvas* canvas) {
 //        canvas->drawColor(0xFFDDDDDD);
         canvas->drawColor(SK_ColorGRAY);
         canvas->drawColor(SK_ColorWHITE);
     }

     SkScalar fScale;
     virtual void onDraw(SkCanvas* canvas) {
         this->drawBG(canvas);

         if (true) {
             canvas->scale(SkIntToScalar(2), SkIntToScalar(2));
             drawmarshmallow(canvas);
             return;
         }

         if (false) {
             SkPaint p;
             p.setStyle(SkPaint::kStroke_Style);
             p.setStrokeWidth(SkIntToScalar(4));
             canvas->drawCircle(SkIntToScalar(100), SkIntToScalar(100), SkIntToScalar(50), p);
             p.setAntiAlias(true);
             canvas->drawCircle(SkIntToScalar(300), SkIntToScalar(100), SkIntToScalar(50), p);
         }
         if (false) {
             SkScalar cx = this->width()/2;
             SkScalar cy = this->height()/2;
             canvas->translate(cx, cy);
             canvas->scale(fScale, fScale);
             canvas->translate(-cx, -cy);
             DrawRoundRect(*canvas);
             return;
         }

         canvas->translate(SkIntToScalar(10), SkIntToScalar(10));

         SkScalar x = SkIntToScalar(32), y = SkIntToScalar(32);
         SkPaint paint;

 #if 0
         for (int i = 0; i < fBitmapCount; i++) {
             SkPaint p;

 #if 1
             const SkScalar cm[] = {
                 SkIntToScalar(2), 0, 0, 0, SkIntToScalar(-255),
                 0, SkIntToScalar(2), 0, 0, SkIntToScalar(-255),
                 0, 0, SkIntToScalar(2), 0, SkIntToScalar(-255),
                 0, 0, 0, SkIntToScalar(1), 0
             };
             SkColorFilter* cf = new SkColorMatrixFilter(cm);
             p.setColorFilter(cf)->unref();
 #endif

             canvas->drawBitmap(fBitmaps[i], x, y, &p);
             x += SkIntToScalar(fBitmaps[i].width() + 10);
         }
         return;
 #endif

         canvas->drawBitmap(fBitmaps[fCurrIndex], x, y, &paint);
 #ifndef SPECIFIC_IMAGE
         if (true) {
             fCurrIndex += 1;
             if (fCurrIndex >= fBitmapCount) {
                 fCurrIndex = 0;
             }
             this->inval(NULL);
         }
 #endif
     }

     virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y) {
         if (true) {
             fCurrIndex += 1;
             if (fCurrIndex >= fBitmapCount)
                 fCurrIndex = 0;
             this->inval(NULL);
         }
         return new Click(this);
     }

     virtual bool onClick(Click* click)  {
         SkScalar center = this->width()/2;
         fSaturation = SkScalarDiv(click->fCurr.fX - center, center/2);
         center = this->height()/2;
         fAngle = SkScalarDiv(click->fCurr.fY - center, center) * 180;

         fDX += click->fCurr.fX - click->fPrev.fX;
         fDY += click->fCurr.fY - click->fPrev.fY;

         fScale = SkScalarDiv(click->fCurr.fX, this->width());

         this->inval(NULL);
         return true;
         return this->INHERITED::onClick(click);
     }

 private:
     SkScalar fDX, fDY;
     typedef SkView INHERITED;
 };

 //////////////////////////////////////////////////////////////////////////////

 static SkView* MyFactory() { return new ImageDirView; }
 static SkViewRegister reg(MyFactory);

	/*
	* 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 "SampleCode.h"
	#include "SkView.h"
	#include "SkCanvas.h"
	#include "SkGradientShader.h"
	#include "SkGraphics.h"
	#include "SkImageDecoder.h"
	#include "SkPath.h"
	#include "SkRegion.h"
	#include "SkShader.h"
	#include "SkUtils.h"
	#include "SkXfermode.h"
	#include "SkComposeShader.h"
	#include "SkColorPriv.h"
	#include "SkColorFilter.h"
	#include "SkTime.h"
	#include "SkTypeface.h"

	#include "SkImageRef_GlobalPool.h"
	#include "SkOSFile.h"
	#include "SkStream.h"

	#include "SkBlurDrawLooper.h"
	#include "SkColorMatrixFilter.h"

	static void drawmarshmallow(SkCanvas* canvas) {
	SkBitmap bitmap;
	SkPaint paint;
	SkRect r;
	SkMatrix m;

	SkImageDecoder::DecodeFile("/Users/reed/Downloads/3elfs.jpg", &bitmap);
	if (!bitmap.pixelRef()) {
	return;
	}

	SkShader* s = SkShader::CreateBitmapShader(bitmap,
	SkShader::kRepeat_TileMode,
	SkShader::kRepeat_TileMode);
	paint.setShader(s)->unref();
	m.setTranslate(SkIntToScalar(250), SkIntToScalar(134));
	s->setLocalMatrix(m);

	r.set(SkIntToScalar(250),
	SkIntToScalar(134),
	SkIntToScalar(250 + 449),
	SkIntToScalar(134 + 701));
	paint.setFlags(2);

	canvas->drawRect(r, paint);
	}

	static void DrawRoundRect(SkCanvas& canvas) {
	bool ret = false;
	SkPaint paint;
	SkBitmap bitmap;
	SkMatrix matrix;
	matrix.reset();

	bitmap.setConfig(SkBitmap::kARGB_8888_Config, 1370, 812);
	bitmap.allocPixels();
	#if 0
	SkCanvas canvas;
	canvas.setBitmapDevice(bitmap);
	#endif

	// set up clipper
	SkRect skclip;
	skclip.set(SkIntToScalar(284), SkIntToScalar(40), SkIntToScalar(1370), SkIntToScalar(708));

	// ret = canvas.clipRect(skclip);
	// SkASSERT(ret);

	matrix.set(SkMatrix::kMTransX, SkFloatToScalar(-1153.28f));
	matrix.set(SkMatrix::kMTransY, SkFloatToScalar(1180.50f));

	matrix.set(SkMatrix::kMScaleX, SkFloatToScalar(0.177171f));
	matrix.set(SkMatrix::kMScaleY, SkFloatToScalar(0.177043f));

	matrix.set(SkMatrix::kMSkewX, SkFloatToScalar(0.126968f));
	matrix.set(SkMatrix::kMSkewY, SkFloatToScalar(-0.126876f));

	matrix.set(SkMatrix::kMPersp0, SkFloatToScalar(0.0f));
	matrix.set(SkMatrix::kMPersp1, SkFloatToScalar(0.0f));

	ret = canvas.concat(matrix);

	paint.setAntiAlias(true);
	paint.setColor(0xb2202020);
	paint.setStyle(SkPaint::kStroke_Style);
	paint.setStrokeWidth(SkFloatToScalar(68.13f));

	SkRect r;
	r.set(SkFloatToScalar(-313.714417f), SkFloatToScalar(-4.826389f), SkFloatToScalar(18014.447266f), SkFloatToScalar(1858.154541f));
	canvas.drawRoundRect(r, SkFloatToScalar(91.756363f), SkFloatToScalar(91.756363f), paint);
	}

	static bool SetImageRef(SkBitmap* bitmap, SkStream* stream,
	SkBitmap::Config pref, const char name[] = NULL) {
	#if 0
	// test buffer streams
	SkStream* str = new SkBufferStream(stream, 717);
	stream->unref();
	stream = str;
	#endif

	SkImageRef* ref = new SkImageRef_GlobalPool(stream, pref, 1);
	ref->setURI(name);
	if (!ref->getInfo(bitmap)) {
	delete ref;
	return false;
	}
	bitmap->setPixelRef(ref)->unref();
	return true;
	}

	//#define SPECIFIC_IMAGE "/skimages/72.jpg"
	#define SPECIFIC_IMAGE "/Users/reed/Downloads/3elfs.jpg"

	#define IMAGE_DIR "/skimages/"
	#define IMAGE_SUFFIX ".gif"

	class ImageDirView : public SkView {
	public:
	SkBitmap* fBitmaps;
	SkString* fStrings;
	int fBitmapCount;
	int fCurrIndex;
	SkScalar fSaturation;
	SkScalar fAngle;

	ImageDirView() {
	SkImageRef_GlobalPool::SetRAMBudget(320 * 1024);

	#ifdef SPECIFIC_IMAGE
	fBitmaps = new SkBitmap[3];
	fStrings = new SkString[3];
	fBitmapCount = 3;
	const SkBitmap::Config configs[] = {
	SkBitmap::kARGB_8888_Config,
	SkBitmap::kRGB_565_Config,
	SkBitmap::kARGB_4444_Config
	};
	for (int i = 0; i < fBitmapCount; i++) {
	#if 1
	SkStream* stream = new SkFILEStream(SPECIFIC_IMAGE);
	SetImageRef(&fBitmaps[i], stream, configs[i], SPECIFIC_IMAGE);
	stream->unref();
	#else
	SkImageDecoder::DecodeFile(SPECIFIC_IMAGE, &fBitmaps[i]);
	#endif
	}
	#else
	int i, N = 0;
	SkOSFile::Iter iter(IMAGE_DIR, IMAGE_SUFFIX);
	SkString name;
	while (iter.next(&name)) {
	N += 1;
	}
	fBitmaps = new SkBitmap[N];
	fStrings = new SkString[N];
	iter.reset(IMAGE_DIR, IMAGE_SUFFIX);
	for (i = 0; i < N; i++) {
	iter.next(&name);
	SkString path(IMAGE_DIR);
	path.append(name);
	SkStream* stream = new SkFILEStream(path.c_str());

	SetImageRef(&fBitmaps[i], stream, SkBitmap::kNo_Config,
	name.c_str());
	stream->unref();
	fStrings[i] = name;
	}
	fBitmapCount = N;
	#endif
	fCurrIndex = 0;
	fDX = fDY = 0;

	fSaturation = SK_Scalar1;
	fAngle = 0;

	fScale = SK_Scalar1;
	}

	virtual ~ImageDirView() {
	delete[] fBitmaps;
	delete[] fStrings;

	SkImageRef_GlobalPool::DumpPool();
	}

	protected:
	// overrides from SkEventSink
	virtual bool onQuery(SkEvent* evt) {
	if (SampleCode::TitleQ(*evt)) {
	SkString str("ImageDir: ");
	#ifdef SPECIFIC_IMAGE
	str.append(SPECIFIC_IMAGE);
	#else
	str.append(IMAGE_DIR);
	#endif
	SampleCode::TitleR(evt, str.c_str());
	return true;
	}
	return this->INHERITED::onQuery(evt);
	}

	void drawBG(SkCanvas* canvas) {
	// canvas->drawColor(0xFFDDDDDD);
	canvas->drawColor(SK_ColorGRAY);
	canvas->drawColor(SK_ColorWHITE);
	}

	SkScalar fScale;
	virtual void onDraw(SkCanvas* canvas) {
	this->drawBG(canvas);

	if (true) {
	canvas->scale(SkIntToScalar(2), SkIntToScalar(2));
	drawmarshmallow(canvas);
	return;
	}

	if (false) {
	SkPaint p;
	p.setStyle(SkPaint::kStroke_Style);
	p.setStrokeWidth(SkIntToScalar(4));
	canvas->drawCircle(SkIntToScalar(100), SkIntToScalar(100), SkIntToScalar(50), p);
	p.setAntiAlias(true);
	canvas->drawCircle(SkIntToScalar(300), SkIntToScalar(100), SkIntToScalar(50), p);
	}
	if (false) {
	SkScalar cx = this->width()/2;
	SkScalar cy = this->height()/2;
	canvas->translate(cx, cy);
	canvas->scale(fScale, fScale);
	canvas->translate(-cx, -cy);
	DrawRoundRect(*canvas);
	return;
	}

	canvas->translate(SkIntToScalar(10), SkIntToScalar(10));

	SkScalar x = SkIntToScalar(32), y = SkIntToScalar(32);
	SkPaint paint;

	#if 0
	for (int i = 0; i < fBitmapCount; i++) {
	SkPaint p;

	#if 1
	const SkScalar cm[] = {
	SkIntToScalar(2), 0, 0, 0, SkIntToScalar(-255),
	0, SkIntToScalar(2), 0, 0, SkIntToScalar(-255),
	0, 0, SkIntToScalar(2), 0, SkIntToScalar(-255),
	0, 0, 0, SkIntToScalar(1), 0
	};
	SkColorFilter* cf = new SkColorMatrixFilter(cm);
	p.setColorFilter(cf)->unref();
	#endif

	canvas->drawBitmap(fBitmaps[i], x, y, &p);
	x += SkIntToScalar(fBitmaps[i].width() + 10);
	}
	return;
	#endif

	canvas->drawBitmap(fBitmaps[fCurrIndex], x, y, &paint);
	#ifndef SPECIFIC_IMAGE
	if (true) {
	fCurrIndex += 1;
	if (fCurrIndex >= fBitmapCount) {
	fCurrIndex = 0;
	}
	this->inval(NULL);
	}
	#endif
	}

	virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y) {
	if (true) {
	fCurrIndex += 1;
	if (fCurrIndex >= fBitmapCount)
	fCurrIndex = 0;
	this->inval(NULL);
	}
	return new Click(this);
	}

	virtual bool onClick(Click* click) {
	SkScalar center = this->width()/2;
	fSaturation = SkScalarDiv(click->fCurr.fX - center, center/2);
	center = this->height()/2;
	fAngle = SkScalarDiv(click->fCurr.fY - center, center) * 180;

	fDX += click->fCurr.fX - click->fPrev.fX;
	fDY += click->fCurr.fY - click->fPrev.fY;

	fScale = SkScalarDiv(click->fCurr.fX, this->width());

	this->inval(NULL);
	return true;
	return this->INHERITED::onClick(click);
	}

	private:
	SkScalar fDX, fDY;
	typedef SkView INHERITED;
	};

	//////////////////////////////////////////////////////////////////////////////

	static SkView* MyFactory() { return new ImageDirView; }
	static SkViewRegister reg(MyFactory);