brkho
/
freedreno-occlusion-vulkan
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Binary that renders a triangle using Vulkan, scans the resulting image to a PNG, and makes an occlusion query to determine the number of fragments shaded. To be used in developing Turnip.
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Brian Ho 47c303ddc5 Count shaded fragments via Vulkan query and manual counting pirms 6 gadiem
.gitignore Initial commit forked from brkho/triangle pirms 6 gadiem
Makefile Initial commit forked from brkho/triangle pirms 6 gadiem
README.md Initial commit forked from brkho/triangle pirms 6 gadiem
occlusion.cc Count shaded fragments via Vulkan query and manual counting pirms 6 gadiem
occlusion.frag Count shaded fragments via Vulkan query and manual counting pirms 6 gadiem
occlusion.vert Count shaded fragments via Vulkan query and manual counting pirms 6 gadiem

README.md

Vulkan occlusion query demo

Overview

This repo contains the source for an applicaiton that renders a triangle using Vulkan, saves the output as a PNG, and outputs the number of shaded fragments via an occlusion query. This applicaiton is used to debug turnip occlusion queries on Chrome OS.

Instructions

  • Enter the CrOS chroot and set up the boards you want to test against (setup_board --board=${BOARD}).
  • Emerge Vulkan, mesa, and libpng to the device under test (emerge vulkan-loader media-libs/mesa libpng && cros deploy ${IP_ADDR} ${PACKAGES}).
  • make shaders
  • target={local, atlas (i915), cheza (adreno)} make