skia in ndk SkImageEncoder::EncodeFile failing

[Sarim Khan]

Hello,

I'm using android ndk to run a simple skia example but it's failing.

My Code: 

int drawnow () {

    //

    SkAutoGraphics ag;

    //Output filename

    SkString path("/data/local/tmp/skhello.png");

    //Set Text To Draw

    SkString text("Hydra v0.0.1a");

    SkPaint paint;

    //Set Text ARGB Color

    paint.setARGB(255, 255, 255, 255);

    Turn AntiAliasing On

paint.setAntiAlias(true);

    paint.setLCDRenderText(true);

    paint.setTypeface(SkTypeface::CreateFromName("DroidSans", SkTypeface::kNormal));

    //Set Text Size

    paint.setTextSize(SkIntToScalar(40));

    //Set Image Width & Height

    int width = 500;

    int height = 600;

    SkBitmap bitmap;

    bitmap.setConfig(SkBitmap::kARGB_8888_Config, width, height);

    bitmap.allocPixels();

    //Create Canvas

    SkCanvas canvas(new SkDevice(bitmap));

    canvas.drawARGB(255, 25, 25, 25);

    //Text X, Y Position Varibles

    int x = 80;

    int y = 60;

    //canvas.drawText(text.c_str(), text.size(), x, y, paint);

    //Set Style and Stroke Width

    paint.setStyle(SkPaint::kStroke_Style);

    paint.setStrokeWidth(3);

    //Draw A Rectangle

    SkRect rect;

    paint.setARGB(255, 255, 255, 255);

    //Left, Top, Right, Bottom

    rect.set(50, 100, 200, 200);

    canvas.drawRoundRect(rect, 20, 20, paint);

    canvas.drawOval(rect, paint);

    //Draw A Line

    canvas.drawLine(10, 300, 300, 300, paint);

    //Draw Circle (X, Y, Size, Paint)

    canvas.drawCircle(100, 400, 50, paint);

    //Same Image  (file, bitmap, image_type, quality)

    bool success = SkImageEncoder::EncodeFile(path.c_str(), bitmap, SkImageEncoder::kPNG_Type, 100);

    return success ;

}

 the drawnow function returns "false" and the output file /data/local/tmp/skhello.png is not created also. I'm very new to skia and cant figure how to make it work. Is There any SkError class or any other way to capture error ? Where is the error happening ?

no error is shown is logcat.

i'm using android ics 4.0.4 and linking against the /system/lib/libskia.so (builtin)

[Derek Sollenberger]

You will need to build your own copy of Skia (and statically link it) and not rely on the one already installed on the system as your headers won't match up with what the lib provides.  

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