Hi, I am developing a game for android using the Vulkan APIs. For the most part things work fine, however, on some devices, I have this problem where the x and y coordinates are switched. I draw on what I think of as the top of the screen, and it draws the objects on the side. Also, when I do anything with the view point (the view matrix), x and y are reversed. If I move the view point in the x direction, it actually moves in the y direction.
Also, the width and height reported by the swap chain are reversed. So that if I plug these values into the perspective matrix like so:
glm::perspective(glm::radians(60.0f), swapchainRetrievedWidth / (float) swapchainRetrievedHeight, 0.1f, 10.0f);
it will draw horribly skewed objects. But if I reverse the width and height, like so:
glm::perspective(glm::radians(60.0f), swapchainRetrievedHeight / (float) swapchainRetrievedWidth, 0.1f, 10.0f);
The objects look fine.
One device where this happens on is using an Adreno 530, API version 1.0.49, driver version: 35.143.1455, OS: android 8.0, phone vendor: HTC. For this device, these symptoms only occur if the device is using the split screen mode with the device held in landscape orientation (the app forces portrait mode). I've seen this happen on other devices too and in the full screen (not split screen) mode. So, I don't think it is the way I reinitialized the swap chain, pipeline, depth buffer, render pass and command buffers when the screen size changes. Since the screen would not change size for the devices where this problem occurs in full screen mode.
Am I doing something wrong? Is there a bug? I am willing to give more information on this problem, but do not know what is needed. Thanks for all your support and help.