Const-me/Vrmac on Hacker News

…precise memory structure of the data Here’s a C# library for Linux where I’m doing all these things https://github.com/Const-me/Vrmac/blob/master/VrmacVideo/Rea... As you see from that readme, the performance is pretty good too.

comment by Const-me · 2024-10-09 · in My negative views on Rust (2023)

…to make it. Here’s a proof of concept for ARMv7 Debian (Raspberry Pi4), on top of GLES 3.1: https://github.com/Const-me/Vrmac/?tab=readme-ov-file#2d-gra...

comment by Const-me · 2024-06-19 · in ExectOS – brand new operating system which derives from NT architecture

…MKV containers, is memory-safe C# apart from very small pieces, most of them in that static class: https://github.com/Const-me/Vrmac/blob/master/VrmacVideo/Con... And these functions are only used by Mpeg4 container parser. The parser for…

comment by Const-me · 2024-06-14 · in Scan HTML faster with SIMD instructions – Chrome edition

…functions. Here’s couple examples of relatively complicated logic which uses loops instead of LINQ: https://github.com/Const-me/Vrmac/blob/master/VrmacVideo/Aud... https://github.com/Const-me/Vrmac/blob/master/VrmacVideo/Con...

comment by Const-me · 2024-06-14 · in Scan HTML faster with SIMD instructions – Chrome edition

…Another example, here’s a library implementing a subset of ffmpeg for ARM Linux in memory-safe C#: https://github.com/Const-me/Vrmac/tree/master/VrmacVideo

comment by Const-me · 2024-06-14 · in Scan HTML faster with SIMD instructions – Chrome edition

…is not LEB128, it's better. BTW I once implemented my own parser in C#, see that source file: https://github.com/Const-me/Vrmac/blob/master/VrmacVideo/Con...

comment by Const-me · 2024-05-23 · in vu128: Efficient variable-length integers

Couple times in the past I have implemented GPU-targeted GUI renderers, here’s an example: https://github.com/Const-me/Vrmac?tab=readme-ov-file#vector-... https://github.com/Const-me/Vrmac/blob/master/Vrmac/Draw/VAA... 2D graphics have…

comment by Const-me · 2024-01-29 · in New Renderers for GTK

…a subset of ffmpeg for Raspberry Pi4 running 32-bit Linux, with no memory allocations in runtime: https://github.com/Const-me/Vrmac/tree/master/VrmacVideo

comment by Const-me · 2024-01-14 · in OpenD, a D language fork that is open to your contributions

…released in 2019), and unmanaged interop support is available since the very first 1.0 version. [0] https://github.com/Const-me/Vrmac/blob/master/VrmacVideo/Lin... [1] https://github.com/Const-me/Vrmac/blob/master/VrmacVideo/Lin... [2]…

comment by Const-me · 2023-10-26 · in Was Rust Worth It?

…support C interop. For many desktop and embedded projects this is a showstopper, here’s an example https://github.com/Const-me/Vrmac/tree/master/VrmacVideo That C# code directly consumes V4L2 and ASIO Linux kernel APIs, and calls unmanaged…

comment by generichuman · 2023-10-26 · in Was Rust Worth It?

…support C interop. For many desktop and embedded projects this is a showstopper, here’s an example https://github.com/Const-me/Vrmac/tree/master/VrmacVideo That C# code directly consumes V4L2 and ASIO Linux kernel APIs, and calls unmanaged…

comment by Const-me · 2023-10-26 · in Was Rust Worth It?

…a subset of ffmpeg and libavcodec C libraries for one particular platform, Linux on Raspberry Pi4: https://github.com/Const-me/Vrmac/tree/master/VrmacVideo

comment by Const-me · 2023-08-19 · in Stable Diffusion in C/C++

…downloaded 140k times: https://github.com/Const-me/SkyFM Cross-platform graphics library for .NET: https://github.com/Const-me/Vrmac Recently, offline speech-to-text for Windows: https://github.com/Const-me/Whisper At this point, I…

comment by Const-me · 2023-01-27 · in Ask HN: Those making $0/month or less on side projects – Show and tell

…created with high resolution flag. Here's my attempt at making something similar, couple years ago: https://github.com/Const-me/Vrmac

comment by Const-me · 2023-01-24 · in Minimal Cross-Platform Graphics

> For how things actually work in practice Another version of the demuxer, way simpler: https://github.com/Const-me/Vrmac/blob/master/VrmacVideo/Con... A complete mpeg4 media file, with enough features to play the content with hardware…

comment by Const-me · 2022-11-26 · in An MP4 file first draft

…doesn’t need C++ to be good enough. Here’s an example, a video player library for Raspberry Pi4: https://github.com/Const-me/Vrmac/tree/master/VrmacVideo As written on that page, just a few things are in C++ (GLES integration, audio…

comment by Const-me · 2022-09-18 · in Cppfront, Herb Sutter's proposal for a new C++ syntax

…fair, in modern GL versions they fixed some of these things. In GLES 3.1 which I used a lot on Pi4 https://github.com/Const-me/Vrmac/ GPU vertex buffers and shaders worked fine, GLSL compiler in the drivers worked fine too. However, others…

comment by Const-me · 2022-08-03 · in Vulkan update: version 1.2 conformance for Raspberry Pi 4

Here's how I did that https://github.com/Const-me/Vrmac/blob/master/Vrmac/Draw/VAA... Inexact but IMO pretty good still. With some modifications, the approach can be used in GLES2.

comment by Const-me · 2022-07-16 · in Advice for the next dozen Rust GUIs

…implement an equivalent on all modern platforms which have a 3D GPU. An open-source example in C# https://github.com/Const-me/Vrmac#vector-graphics-engine That particular one requires GLES 3.1, but I’m sure (did it before) it’s also…

comment by Const-me · 2022-07-16 · in Advice for the next dozen Rust GUIs

…good hardware support. I think the right way is building on top of 3D GPU APIs, like I did there: https://github.com/const-me/Vrmac#vector-graphics-engine

comment by Const-me · 2022-05-01 · in Ask HN: Modern Alternatives to C

…line in *.csproj file. If you think GC performance is not good enough, see that proof of concept: https://github.com/Const-me/Vrmac/tree/master/VrmacVideo/Con... That C# code implements parser for Mpeg4 format. That format is way more…

comment by Const-me · 2022-02-20 · in A Saudi woman's iPhone revealed hacking around the world

…but still doable. Here’s a relevant documentation from my graphics library for Raspberry Pi4: https://github.com/Const-me/Vrmac/blob/master/Vrmac/Draw/VAA... Update: if you only need to support nVidia GPUs, they have a proprietary GL…

comment by Const-me · 2022-01-01 · in Finding your home in game graphics programming

…I mentioned in my comment. I do use them when performance matters, here’s an open-source example: https://github.com/Const-me/Vrmac/blob/1.2/Vrmac/Draw/Main/I... That code is from a 2D vector graphics library, these interface methods may…

comment by Const-me · 2021-12-27 · in Why Is C Faster Than Java (2009)

…performance over prolonged use. Your requirements are probably similar to this C# queues class: https://github.com/Const-me/Vrmac/blob/master/VrmacVideo/Aud... That library decodes and plays realtime video + audio, both low latency and…

comment by Const-me · 2021-12-23 · in My negative views on Rust

…TGA, it is trivially easy to write. Example in C# for grayscale version, a single page of code: https://github.com/Const-me/Vrmac/blob/1.2/VrmacInterop/Util... BMP is more complicated, unfortunately. The header structure is more complex.…

comment by Const-me · 2021-11-10 · in Image file formats that didn’t make it

…how to bring some abstractions for graphics (2d,3d) that would fit in 99% of the scenarios. I did: https://github.com/const-me/Vrmac/

comment by Const-me · 2021-10-28 · in Microsoft's UWP = Unwanted Windows Platform?

…need it here. Here’s my code which offloads CPU-bound pieces of 2D rendering to other CPU cores: https://github.com/Const-me/Vrmac/tree/master/Vrmac/Draw/Tes... Multithreading helped a lot.

comment by Const-me · 2021-09-09 · in A novel technological approach to vector graphics (“Vector Graphics Complexes”)

…vector graphics libraries. I have once made my own one when I needed something similar: https://github.com/Const-me/Vrmac#vector-graphics-engine

comment by Const-me · 2021-09-09 · in A novel technological approach to vector graphics (“Vector Graphics Complexes”)

This project https://github.com/Const-me/Vrmac implements unified keyboard+mouse input API over 3 distinct lower-level APIs: Win32 messages, XCB packets, and Linux raw input. Here’s for raw input: https://github.com/Const-me/Vrmac/tree/mast…

comment by Const-me · 2021-09-01 · in It's Time for Operating Systems to Rediscover Hardware

…https://github.com/Const-me/SkyFM Here's somewhat similar modern code, also multimedia related: https://github.com/Const-me/Vrmac/tree/master/VrmacVideo

comment by Const-me · 2021-09-01 · in C# for Systems Programming

…_mm_dp_ps, _mm_extract_epi32, _mm_extract_epi64, _mm_shuffle_epi32. A similar list for this project https://github.com/Const-me/Vrmac (a GPU-centric library for 3D and 2D graphics, not using any AVX): _mm_shuffle_epi8, _mm_alignr_epi8,…

comment by Const-me · 2021-08-15 · in AVX512/VBMI2: A Programmer’s Perspective

…be interested in. I wonder do they have support for that in the Linux OS kernel, through V4L2? https://github.com/Const-me/Vrmac/tree/master/VrmacVideo

comment by Const-me · 2021-08-13 · in Ask HN: Do you use Purism, PinePhone, or Fairphone?

…has all the lower-level pieces to implement a comparable equivalent. Here’s a proof of concept: https://github.com/Const-me/Vrmac#vector-graphics-engine

comment by Const-me · 2021-08-12 · in So you want to write a GUI framework

…antialiasing That’s subjective, I think these techniques are awesome fit for 2D. See this library: https://github.com/Const-me/Vrmac#2d-graphics BTW I have recently documented my antialiasing algorithm:…

comment by Const-me · 2021-08-11 · in So you want to write a GUI framework

…3.1 GPU. Still, I might be able to back port to GLES2, the GPU side is not terribly complicated: https://github.com/Const-me/Vrmac/

comment by Const-me · 2021-07-25 · in PinePhone – Open Source Smart Phone Supported by Major Linux Phone Projects

…higher-level libraries. They are possible to implement on top of whichever GPU API is available https://github.com/Const-me/Vrmac#vector-graphics-engine but so far nobody did it well enough. It’s very similar situation with GPU compute on…

comment by Const-me · 2021-06-28 · in The free lunch is over: a fundamental turn toward concurrency in software (2005)

…h264 stateful video decoder is enabled in official OS images, and works great in practice on Pi4: https://github.com/Const-me/Vrmac/tree/master/VrmacVideo VLC player shipped in these OS images uses that one as well. If it doesn’t work for…

comment by Const-me · 2021-04-19 · in MirkoPC – a Raspberry Pi CM4-powered computer made in Poland

…code. If your environment is anywhere similar, and you OK with .NET 2.1.18, you can try my package: https://github.com/Const-me/Vrmac/releases/tag/1.0 Sources: https://github.com/Const-me/Vrmac/tree/master/net-core

comment by Const-me · 2021-03-23 · in Crystal 1.0 – What to expect

…examples from my open-source projects: https://github.com/Const-me/vis_avs_dx/blob/master/legal.txt https://github.com/Const-me/Vrmac/blob/master/Pre-existing%2...

comment by Const-me · 2021-03-21 · in The world needs a software bill of materials

…than C/C++ with intrinsics. Here’s a library which implements media player component for ARM Linux: https://github.com/Const-me/Vrmac/tree/master/VrmacVideo#per... It calls native code to present decoded video frames with GLES, and decode…

comment by Const-me · 2021-03-19 · in Building a shared vision for Async Rust

…will work without virtual calls, boxing, or any other runtime overhead. Example of that approach: https://github.com/Const-me/Vrmac/blob/1.2/Vrmac/Draw/Main/I...

comment by Const-me · 2021-03-18 · in A curated list of .NET performance resources

…GPU-based splines. AFAIK the research is not there just yet.” Verifiable because version control: https://github.com/Const-me/Vrmac/blob/bbe83b9722dcb080f1aed... For text, I think bitmaps are better than splines. I can see how splines are…

comment by Const-me · 2021-03-15 · in 2D Graphics on Modern GPU (2019)

…on the GPU and instead just blits glyphs from an atlas texture rendered with Freetype on the CPU: https://github.com/Const-me/Vrmac/blob/master/Vrmac/Draw/Sha... In contrast, piet-gpu (the subject of the original blog post) has high enough…

comment by glowcoil · 2021-03-15 · in 2D Graphics on Modern GPU (2019)

Good question. If you use the fillRectangle method https://github.com/Const-me/Vrmac/blob/1.2/Vrmac/Draw/iDrawC... to draw them I think you should get solid fill. That particular API doesn’t use AA for that shape. Modern GPU hardware with…

comment by Const-me · 2021-03-15 · in 2D Graphics on Modern GPU (2019)

…that, the GPU abstraction library I’ve picked recompiles the HLSL into GLSL or others on the fly: https://github.com/Const-me/Vrmac/blob/master/Vrmac/Draw/Sha... https://github.com/Const-me/Vrmac/blob/master/Vrmac/Draw/Sha... These shaders…

comment by Const-me · 2021-03-15 · in 2D Graphics on Modern GPU (2019)

The quality is not good, and the performance is not even mentioned. I have used different approach: https://github.com/Const-me/Vrmac#vector-graphics-engine My version is cross-platform, tested with Direct3D 12 and GLES 3.1. My version…

comment by Const-me · 2021-03-15 · in 2D Graphics on Modern GPU (2019)

…with the standards of the formats themselves. I have implemented accelerated video playback myself https://github.com/Const-me/Vrmac/tree/master/VrmacVideo and I disagree. Needed a lot of these standards, not just for containers and audio,…

comment by Const-me · 2021-03-09 · in “ISO obstructs adoption of standards by paywalling them”

…C# programmer can even write code which approaches or outperforms C. My Linux video player library https://github.com/Const-me/Vrmac/tree/master/VrmacVideo#per... uses CPU on par with VLC, and 20% less RAM.

comment by Const-me · 2021-03-04 · in Accidentally quadratic: When Python is faster than C++

…them), for smooth surfaces you want per-vertex normals. Computing them well (like I did there https://github.com/Const-me/Vrmac#3d-gpu-abstraction-layer ) is slow and complicated.

comment by Const-me · 2021-03-04 · in It Can Happen to You

I once did something similar in C++, C# and HLSL: https://github.com/Const-me/Vrmac With more focus on GPU integration, and output quality. Unfortunately, these priorities resulted in more than an order of magnitude of code complexity,…

comment by Const-me · 2021-02-22 · in Nuklear: A cross-platform GUI library in C