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John Drinkwater johndrinkwater

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@dogtopus
dogtopus / ds5.desc.xml
Last active June 27, 2024 08:43
DualSense descriptor
<?xml version="1.0"?>
<!--
DualSense (DS5) USB HID Report Descriptor
Documentation WIP
TODO: Extract info from hid-playstation and cross-verify with us.
-->
@glfmn
glfmn / .pre-commit.sh
Last active January 23, 2024 06:46
pre-commit Test Automation Script
#!/usr/bin/env sh
# pre-commit.sh
# Colors
RED='\033[1;31m'
GREEN='\033[1;32m'
YELLOW='\033[1;33m'
NC='\033[0m'
BOLD='\033[1m'
@yifanlu
yifanlu / E80558325.md
Last active October 13, 2023 14:04
Vita 3.65 activation investigation (E-80558325)

On 7/29/2017, all hacked Vitas on 3.60 spoofing the latest firmware (3.65) were blocked from console activation. This is particularly odd because the PSN passphrase did not change in 3.65. Additionally with the release of ensō added to the confusion of what happened. Here is the result of a preliminary investigation of the situation.

Upon game activation, the Vita displays an dialog that shows the error number E-80558325. This error number is used in SceNpKdc, which is found in vs0:external/np_kdc.suprx. The error code itself is created when the activation response is received:

v5 = v45 | 0x80558300;

Here, v5 is the return code and v45 is the string error code from the server converted to a number. The request made to Sony's server looks like the following

@beesandbombs
beesandbombs / winders.pde
Created June 13, 2017 23:02
winders
// gif by dave aka @beesandbombs :)
int[][] result;
float t, c;
float ease(float p) {
return 3*p*p - 2*p*p*p;
}
float ease(float p, float g) {
@jhaberstro
jhaberstro / gpu_arch_resources
Last active October 26, 2023 00:14
GPU Architecture Learning Resources
http://courses.cms.caltech.edu/cs179/
http://www.amd.com/Documents/GCN_Architecture_whitepaper.pdf
https://community.arm.com/graphics/b/blog
http://cdn.imgtec.com/sdk-documentation/PowerVR+Hardware.Architecture+Overview+for+Developers.pdf
http://cdn.imgtec.com/sdk-documentation/PowerVR+Series5.Architecture+Guide+for+Developers.pdf
https://www.imgtec.com/blog/a-look-at-the-powervr-graphics-architecture-tile-based-rendering/
https://www.imgtec.com/blog/the-dr-in-tbdr-deferred-rendering-in-rogue/
http://developer.amd.com/tools-and-sdks/opencl-zone/amd-accelerated-parallel-processing-app-sdk/opencl-optimization-guide/#50401334_pgfId-412605
https://fgiesen.wordpress.com/2011/07/09/a-trip-through-the-graphics-pipeline-2011-index/
https://community.arm.com/graphics/b/documents/posts/moving-mobile-graphics#siggraph2015
@lqd
lqd / gist:1c841dea193698bf50fefa19c6b3fb99
Last active December 10, 2023 19:17
Some of my favorite development streams and shows
Why coding streams/shows are interesting to me: in some livestreams, the experience is very similar to pair programming,
but those people are experts. In VODs, it's more about problem solving and learning skills and approaches. The devs are really good
at what they do and there is *always* a lot to learn.
In no particular order:
1) Handmade Hero
About the author: Casey Muratori. Worked at RAD.
Description and why I like it: It kinda started the whole thing for me. Casey is coding a complete game and engine on stream,
from scratch, one hour a day. He knows what he's doing on so many of the domains of game development and regular programing,
@Reedbeta
Reedbeta / cool-game-programming-blogs.opml
Last active May 5, 2024 18:07
List of cool blogs on game programming, graphics, theoretical physics, and other random stuff
<?xml version="1.0" encoding="UTF-8"?>
<opml version="1.0">
<head>
<title>Graphics, Games, Programming, and Physics Blogs</title>
</head>
<body>
<outline text="Tech News" title="Tech News">
<outline type="rss" text="Ars Technica" title="Ars Technica" xmlUrl="http://feeds.arstechnica.com/arstechnica/index/" htmlUrl="https://arstechnica.com"/>
<outline type="rss" text="Polygon - Full" title="Polygon - Full" xmlUrl="http://www.polygon.com/rss/index.xml" htmlUrl="https://www.polygon.com/"/>
<outline type="rss" text="Road to VR" title="Road to VR" xmlUrl="http://www.roadtovr.com/feed" htmlUrl="https://www.roadtovr.com"/>
@johndrinkwater
johndrinkwater / gist:74753b5542a2d37d8c23
Last active August 30, 2018 17:25
Discovered.
4 3 8 | 7 9 6 | 2 1 5
6 5 9 | 1 3 2 | 4 7 8
2 7 1 | 4 5 8 | 6 9 3
7 4 5 | 6 8 1 | 9 3 2
8 2 3 | 5 4 9 | 7 6 1
1 9 6 | 2 7 3 | 8 5 4
9 8 7 | 3 2 5 | 1 4 6
3 1 4 | 8 6 7 | 5 2 9
5 6 2 | 9 1 4 | 3 8 7
anonymous
anonymous / ds4.cpp
Created December 17, 2015 19:00
example of using libhid to read and write a playstation DS4 controller (wired)
// quick hack job by @mmalex
// thanks to libhid author and @johndrinkwater and https://github.com/chrippa/ds4drv
#include <stdio.h>
#include "hidapi.h" // using http://www.signal11.us/oss/hidapi/
typedef unsigned char u8;
typedef unsigned short u16;
typedef unsigned int u32;
#pragma pack(push, 1)
@davidhund
davidhund / pragmatic-touch-icons.md
Last active September 4, 2020 15:42
Pragmatic Touch Icons

NOTE I'm trying to find the most optimal fav/touch icon setup for my use-cases. Nothing new here. Read Mathias Bynens' articles on re-shortcut-icon and touch icons, a FAQ or a Cheat Sheet for all the details.

I'd like to hear how you approach this: @valuedstandards or comment on this gist.

The issue

You have to include a boatload of link elements pointing to many different images to provide (mobile) devices with a 'favicon' or 'touch icon':

![Touch Icon Links](https://o.twimg.com/2/proxy.jpg?t=HBj6AWh0dHBzOi8vcGhvdG9zLTYuZHJvcGJveC5jb20vdC8yL0FBRGFGY1VRN1dfSExnT3cwR1VhUmtaUWRFcWhxSDVGRjNMdXFfbHRJWG1GNFEvMTIvMjI3OTE2L3BuZy8xMDI0eDc2OC8yL18vMC80L1NjcmVlbnNob3QlMjAyMDE1LTA0LTE0JTIwMTYuNTYuMjYucG5nL0NNejBEU0FCSUFJZ0F5Z0JLQUkvNGR1eDZnMzZmYnlzYWI3