1 files changed, 80 insertions, 0 deletions
diff --git a/samplecode/SampleTextureDomain.cpp b/samplecode/SampleTextureDomain.cpp
new file mode 100755
index 0000000..be000f9
--- /dev/null
+++ b/samplecode/SampleTextureDomain.cpp
@@ -0,0 +1,80 @@
+#include "SampleCode.h"
+#include "SkCanvas.h"
+#include "SkDevice.h"
+
+namespace {
+SkBitmap make_bitmap() {
+    SkBitmap bm;
+    bm.setConfig(SkBitmap::kARGB_8888_Config , 5, 5);
+    bm.allocPixels();
+
+    for (int y = 0; y < bm.height(); y++) {
+        uint32_t* p = bm.getAddr32(0, y);
+        for (int x = 0; x < bm.width(); x++) {
+            p[x] = ((x + y) & 1) ? SK_ColorWHITE : SK_ColorBLACK;
+        }
+    }
+    bm.unlockPixels();
+    return bm;
+}
+} // unnamed namespace
+
+class TextureDomainView : public SampleView {
+    SkBitmap    fBM;
+
+public:
+    TextureDomainView(){
+        fBM = make_bitmap();
+    }
+
+protected:
+    // overrides from SkEventSink
+    virtual bool onQuery(SkEvent* evt) {
+        if (SampleCode::TitleQ(*evt)) {
+            SampleCode::TitleR(evt, "Texture Domian");
+            return true;
+        }
+        return this->INHERITED::onQuery(evt);
+    }
+
+    virtual void onDrawContent(SkCanvas* canvas) {
+        SkIRect srcRect;
+        SkRect dstRect;
+        SkPaint paint;
+        paint.setFilterBitmap(true);
+
+        // Test that bitmap draws from malloc-backed bitmaps respect
+        // the constrained texture domain.
+        srcRect.setXYWH(1, 1, 3, 3);
+        dstRect.setXYWH(5.0f, 5.0f, 305.0f, 305.0f);
+        canvas->drawBitmapRect(fBM, &srcRect, dstRect, &paint);
+
+        // Test that bitmap draws across separate devices also respect
+        // the constrainted texture domain.
+        // Note:  GPU-backed bitmaps follow a different rendering path
+        // when copying from one GPU device to another.
+        SkRefPtr<SkDevice> primaryDevice(canvas->getDevice());
+        SkRefPtr<SkDevice> secondDevice(canvas->createDevice(
+                SkBitmap::kARGB_8888_Config, 5, 5, true, true));
+        secondDevice->unref();
+        SkCanvas secondCanvas(secondDevice.get());
+
+        srcRect.setXYWH(1, 1, 3, 3);
+        dstRect.setXYWH(1.0f, 1.0f, 3.0f, 3.0f);
+        secondCanvas.drawBitmapRect(fBM, &srcRect, dstRect, &paint);
+
+        SkBitmap deviceBitmap = secondDevice->accessBitmap(false);
+
+        srcRect.setXYWH(1, 1, 3, 3);
+        dstRect.setXYWH(405.0f, 5.0f, 305.0f, 305.0f);
+        canvas->drawBitmapRect(deviceBitmap, &srcRect, dstRect, &paint);
+    }
+private:
+    typedef SkView INHERITED;
+};
+
+//////////////////////////////////////////////////////////////////////////////
+
+static SkView* MyFactory() { return new TextureDomainView; }
+static SkViewRegister reg(MyFactory);
+