auto import from //depot/cupcake/@135843

1 files changed, 158 insertions, 0 deletions

diff --git a/samplecode/SampleImage.cpp b/samplecode/SampleImage.cpp
new file mode 100644
index 0000000000..4cefd27b83
--- /dev/null
+++ b/samplecode/SampleImage.cpp
@@ -0,0 +1,158 @@
+#include "SampleCode.h"
+#include "SkView.h"
+#include "SkCanvas.h"
+#include "SkGradientShader.h"
+#include "SkGraphics.h"
+#include "SkImageDecoder.h"
+#include "SkPath.h"
+#include "SkPorterDuff.h"
+#include "SkRegion.h"
+#include "SkShader.h"
+#include "SkUtils.h"
+#include "SkXfermode.h"
+#include "SkColorPriv.h"
+#include "SkColorFilter.h"
+#include "SkTime.h"
+#include "SkTypeface.h"
+
+#include "SkImageRef_GlobalPool.h"
+#include "SkStream.h"
+
+static const char* gNames[] = {
+    "1.bmp", "1.gif", "1.jpg", "1.png",
+    "2.bmp", "2.gif", "2.jpg", "2.png"
+};
+
+// ownership of the stream is transferred
+static bool SetImageRef(SkBitmap* bitmap, SkStream* stream,
+                        SkBitmap::Config pref, const char name[] = NULL)
+{
+    if (SkImageDecoder::DecodeStream(stream, bitmap, pref,
+                                     SkImageDecoder::kDecodeBounds_Mode)) {
+        SkASSERT(bitmap->config() != SkBitmap::kNo_Config);
+    
+        SkImageRef* ref = new SkImageRef_GlobalPool(stream, bitmap->config());
+        ref->setURI(name);
+        bitmap->setPixelRef(ref)->unref();
+        return true;
+    } else {
+        delete stream;
+        return false;
+    }
+}
+
+class ImageView : public SkView {
+public:
+    SkBitmap*   fBitmaps;
+    SkShader*   fShader;
+
+	ImageView() {
+        SkImageRef_GlobalPool::SetRAMBudget(32 * 1024);
+        
+        int i, N = SK_ARRAY_COUNT(gNames);
+        fBitmaps = new SkBitmap[N];
+        
+        for (i = 0; i < N; i++) {
+            SkString str("/skimages/");
+            str.append(gNames[i]);
+            SkFILEStream* stream = new SkFILEStream(str.c_str());
+            
+            SetImageRef(&fBitmaps[i], stream, SkBitmap::kNo_Config, gNames[i]);
+            if (i & 1)
+                fBitmaps[i].buildMipMap();
+        }
+        
+        fShader = SkShader::CreateBitmapShader(fBitmaps[5],
+                                               SkShader::kRepeat_TileMode,
+                                               SkShader::kRepeat_TileMode);
+        
+        if (true) {
+            SkMatrix m;
+            
+            m.setRotate(SkIntToScalar(30));
+            fShader->setLocalMatrix(m);
+        }
+        
+#if 0
+        SkImageRef::DumpPool();
+        for (i = 0; i < N; i++) {
+            SkBitmap& bm = fBitmaps[i];
+
+            SkDebugf("<%s> addr=%p", gNames[i], bm.getPixels());
+            bool success = bm.lockPixels();
+            SkDebugf(" addr=%d", bm.getPixels());
+            if (success)
+                bm.unlockPixels();
+            SkDebugf(" addr=%p", bm.getPixels());
+            success = bm.lockPixels();
+            SkDebugf(" addr=%d", bm.getPixels());
+            if (success)
+                bm.unlockPixels();            
+            SkDebugf("\n");
+        }
+        SkImageRef::DumpPool();
+#endif
+    }
+    
+    virtual ~ImageView() {
+        delete[] fBitmaps;
+        delete fShader;
+
+        SkImageRef_GlobalPool::DumpPool();
+    }
+    
+protected:
+    // overrides from SkEventSink
+    virtual bool onQuery(SkEvent* evt) {
+        if (SampleCode::TitleQ(*evt)) {
+            SampleCode::TitleR(evt, "Image");
+            return true;
+        }
+        return this->INHERITED::onQuery(evt);
+    }
+    
+    void drawBG(SkCanvas* canvas) {
+        canvas->drawColor(0xFFDDDDDD);
+//        canvas->drawColor(SK_ColorWHITE);
+    }
+    
+    virtual void onDraw(SkCanvas* canvas) {
+        this->drawBG(canvas);
+        
+        canvas->translate(SkIntToScalar(10), SkIntToScalar(10));
+        
+        SkScalar x = 0, y = 0;
+        
+        for (size_t i = 0; i < SK_ARRAY_COUNT(gNames); i++) {
+            canvas->drawBitmap(fBitmaps[i], x, y);
+            x += SkIntToScalar(fBitmaps[i].width() + 10);
+        }
+        
+        canvas->translate(0, SkIntToScalar(120));
+
+        SkPaint paint;
+        paint.setShader(fShader);
+        paint.setFilterBitmap(true);
+        SkRect r = { 0, 0, SkIntToScalar(300), SkIntToScalar(100) };
+        
+        canvas->drawRect(r, paint);
+    }
+    
+    virtual SkView::Click* onFindClickHandler(SkScalar x, SkScalar y) {
+        this->inval(NULL);
+        return this->INHERITED::onFindClickHandler(x, y);
+    }
+    
+    virtual bool onClick(Click* click) {
+        return this->INHERITED::onClick(click);
+    }
+    
+private:
+    typedef SkView INHERITED;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+
+static SkView* MyFactory() { return new ImageView; }
+static SkViewRegister reg(MyFactory);
+