How does Duff's device work? - Stack Overflow
Duff's device deals with serial copying, rather than just any old problem, but is a classic example of how optimisations can be made by reducing the number of times that a comparison needs to be done in a …
What does PorterDuff.Mode mean in android graphics.What does it do?
Jun 7, 2015 · I would like to know what PorterDuff.Mode means in android graphics. I know that it is a transfer mode. I also know, that it has attributes such as DST_IN, Multiply etc.
gcc - Is Duff's device still useful? - Stack Overflow
Feb 8, 2019 · Duff’s device and other tricks us old guys used to shave machine cycles off functions, interrupts , and overall code is still relevant when the code runs for cpu years.
What does this C code do [Duff's device]? - Stack Overflow
Jan 20, 2017 · Duff's device In computer science, Duff's device is an optimized implementation of a serial copy that uses a technique widely applied in assembly language for loop unwinding.
jetpack compose blendMode or PorterDuff.Mode DST_IN
May 10, 2022 · android android-jetpack-compose porter-duff edited May 10, 2022 at 9:10 asked May 10, 2022 at 6:59 MJakhongir
How to get correct SourceOver alpha compositing in SDL with OpenGL
Aug 20, 2017 · @HolyBlackCat Yes, that function is being passed to OpenGL (via the SDL library) when rendering the quad. The result is the reddish image I have posted. If the resulting image "has …
Alpha Compositing Algorithm (Blend Modes) - Stack Overflow
Jun 22, 2012 · It felt right to me, and Porter and Duff worked in 0 - 1 float values in their original paper. (I'm encountering trouble with some of the compositing modes, which produce wildly different results …
Jetpack Compose Applying PorterDuffMode to Image - Stack Overflow
Jan 10, 2021 · android canvas android-jetpack-compose porter-duff edited Jan 11, 2021 at 16:12 asked Jan 10, 2021 at 13:01 Thracian
Drawing on Canvas - PorterDuff.Mode.CLEAR draws black! Why?
Aug 23, 2013 · arcPaint = new Paint(); arcPaint.setAntiAlias(true); arcPaint.setColor(Color.RED); // Color doesn't matter Now, everything draws great, but... the background is BLACK in whole View. If I …
Can I use Duff's Device on an array in C? - Stack Overflow
Jan 12, 2012 · 2 Duff's Device is simply a technique for loop unrolling. And since any loop can be unrolled, you can use Duff's Device.