fredldotme

1. The texture target needs to be GLES20.GL_TEXTURE_EXTERNAL_OES instead of GL_TEXTURE_2D, e.g. in the glBindTexture calls and glTexParameteri calls.

2. In the fragment shader define a requirement to use the extension:
#extension GL_OES_EGL_image_external : require

3. For the texture sampler used in the fragment shader, use samplerExternalOES instead of sampler2D.

Everything below here is all in the C code, no more Java.

4. In the C code, use glEGLImageTargetTexture2DOES(GL_TEXTURE_EXTERNAL_OES, eglImage) to specify where the data is, instead of using glTexImage2D family of functions.

fredldotme

#!/usr/bin/env bash

if [ -f build-settings.sh ]; then
    source build-settings.sh
else
    echo "ERROR! Could not source build-settings.sh."
    exit 1
fi

SEED_DIR="/var/lib/snapd/seed"

fredldotme

#!/bin/bash -ex

# Build a new Centos8 install on EBS volume in a chroot
# Run from RHEL8 or CentOS8 instance - eg: ami-0c322300a1dd5dc79 in us-east-1 (RHEL 8 official image)
# Script expects a second EBS volume, I add them as /dev/sdf in the console
# When the script completes, turn the second EBS volume into your new AMI through the console.

# Adjust the section below to match the device names you're using. Defaults are for an m5.large

# m5 series requires the updated device names

fredldotme

Extracting Existing Kernel + Ramfs

Enter the machine using adb shell

Run cat /proc/partitions

  #  Path                     Purpose        Size
  0 /dev/block/mmcblk0                       7761920
  1 /dev/block/mmcblk0p1      data           6085631