seanbaxter’s gists

seanbaxter / life.cxx

Last active July 12, 2021 16:26

Game of life with CIA

	#include <cstdio>
	#include <cstdlib>
	#include <unistd.h>

	// A board is uniquely determined by its height, width and cell data.
	// The timestep is not part of the board.
	template<int height, int width, int... cells>
	struct board_t {
	// Convert the cell data to a string constant.
	static const char string[] {

seanbaxter / user-config.jam

Created June 19, 2021 00:13

	import generators ;

	using clang : : /usr/bin/circle ;

	generators.override clang.compile.c.pch : pch.default-c-pch-generator ;
	generators.override clang.compile.c++.pch : pch.default-cpp-pch-generator ;

seanbaxter / triangle.cxx

Created September 25, 2020 21:18

single-source vulkan triangle

	#include <stdio.h>
	#include <memory>
	#include <iostream>
	#include <fstream>
	#include <vulkan/common.h>

	// Shader interface helper variables.
	template<auto index, typename type_t = @enum_type(index)>
	[[using spirv: in, location((int)index)]]
	type_t shader_in;

seanbaxter / sprites.cxx

Last active September 11, 2020 02:13

compiled sprites with SW framebuffer

	#include <stb_image.h>
	#include <string>
	#include <vector>
	#include <gl3w/GL/gl3w.h>
	#include <GLFW/glfw3.h>

	template<typename type_t>
	const char* enum_to_string(type_t e) {
	static_assert(std::is_enum_v<type_t>);
	switch(e) {

seanbaxter / appglfw.hxx

Last active March 24, 2021 06:25

Circle glTF viewer. C++ shaders.

	#pragma once
	// #include <imgui.h>
	// #include <examples/imgui_impl_glfw.h>
	// #include <examples/imgui_impl_opengl3.h>
	#include <stb_image.h>
	#include <gl3w/GL/gl3w.h>
	#include <GLFW/glfw3.h>
	#include <cmath>
	#include <cstdio>
	#include <cfloat>

seanbaxter / Terminal

Last active August 12, 2020 21:32

Loading vert + tesc shader in one module segfaults nv driver in first call to glSpecializeShader.

	$ glslc --target-env=opengl --target-spv=spv1.5 -o vert.spv vert.vert
	$ glslc --target-env=opengl --target-spv=spv1.5 -o tesc.spv tesc.tesc
	$ spirv-link vert.spv tesc.spv -o program.spv
	$ clang++-9 segfault.cxx -lGL -lgl3w -lsfml-system -lsfml-window -lsfml-graphics -o segfault
	$ ./segfault
	Loaded spv: 1908 bytes
	spv loaded

	Program received signal SIGSEGV, Segmentation fault.
	0x00007ffff1dc7a54 in ?? () from /usr/lib/x86_64-linux-gnu/libnvidia-glcore.so.450.57

seanbaxter / bitfield.cxx

Created October 10, 2019 16:10

Bitfield width specifiers

	#include <cstdio>

	int read_value(const char* prompt) {
	puts(prompt);
	int x = 0;
	scanf("%d", &x);
	return x;
	}

	struct S {

seanbaxter / gist:38dd5dbf7128526056927920291f5920

Created October 5, 2017 14:12

seanbaxter / gist:77f7bab3a647d4bc1a57

Created October 29, 2015 17:44

seanbaxter / gist:2474666

Created April 23, 2012 23:49

Sean Baxter seanbaxter