brkho
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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 8a49fbeeaa Deploy to a subdirectory on DUT 5 years ago
.gitignore Initial commit forked from brkho/triangle 6 years ago
Makefile Deploy to a subdirectory on DUT 5 years ago
README.md Initial commit forked from brkho/triangle 6 years ago
occlusion.cc Add a depth buffer 5 years ago
occlusion.frag Add another triangle for occlusion 6 years ago
occlusion.vert Deploy to a subdirectory on DUT 5 years ago

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