1 files changed, 61 insertions, 0 deletions
diff --git a/gm/tinybitmap.cpp b/gm/tinybitmap.cpp
new file mode 100644
index 0000000000..d309970b27
--- /dev/null
+++ b/gm/tinybitmap.cpp
@@ -0,0 +1,61 @@
+#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() {
+        fBM = make_bitmap();
+    }
+    
+protected:
+    SkString onShortName() {
+        return SkString("tinybitmap");
+    }
+
+    virtual SkISize onISize() { return make_isize(100, 100); }
+
+    virtual void onDraw(SkCanvas* canvas) {
+        canvas->drawColor(0xFFDDDDDD);
+        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);
+
+}