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Handle Vulkan pre-rotation properly on Android

Home Page: https://android-developers.googleblog.com/2020/02/handling-device-orientation-efficiently.html

License: Apache License 2.0

CMake 0.91% GLSL 2.23% C++ 95.49% C 1.37%

vulkan vulkan-demos surface-rotations shaders

vulkan-pre-rotation-demo's Introduction

Vulkan Pre-rotation Demo

After git clone

git submodule init
git submodule update

What's covered?

Detect all surface rotations in Android 10+(easier if landscape only without resizing).
Handle swapchain recreation.
Fix the shaders in clipping space with a simple 2x2 matrix.
NativityActivity, AChoreographer, etc.

What's not covered?

Detect surface rotation in Android Pie and below, which can be fixed by either calling vkGetPhysicalDeviceSurfaceCapabilitiesKHR or the jni Display.getRotation() once a while.
Fix advanced shader features like dfdx and dfdy, which can be fixed by mapping the intended derivative to +-dfdx or +-dfdy according to preTransform pushed to the shader.
Other miscellaneous.

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neotim satyamaroraofficial zengjuly zhangyiwei isabella232 ghas-results

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