mosra’s gists

aras-p / GraphicsCapsGLES.h

Created April 26, 2015 07:56

Part of runtime flags that kick in different things on our GL implementaton

	int maxAASamplesConst; // gles2 img/apple/ext extensions all use different constants (facepalm)
	int halfConst; // gles2 and gles3 have different constants for half float type
	int texSRGBAConst; // gles2 (without 'internal format' ext) and gles3 have different constants for SRGB RGBA texture type
	int texSRGBConst; // gles2 (without 'internal format' ext) and gles3 have different constants for SRGB RGB texture type
	int etcFormatConst; // gles2/gles3 have different standard etc formats

	bool isPvrGpu;
	bool isMaliGpu;
	bool isAdrenoGpu;
	bool isTegraGpu;

cdwfs / cube-strip

Last active April 3, 2025 20:48

Rendering a cube as a 14-index triangle strip

	; How to render a cube using a single 14-index triangle strip
	; (Reposted from http://www.asmcommunity.net/forums/topic/?id=6284#post-45209)
	; Drawbacks: no support for per-vertex normals, UVs, etc.
	;
	; 1-------3-------4-------2 Cube = 8 vertices
	; \| E __/\|\__ A \| H __/\| =================
	; \| __/ \| \__ \| __/ \| Single Strip: 4 3 7 8 5 3 1 4 2 7 6 5 2 1
	; \|/ D \| B \\|/ I \| 12 triangles: A B C D E F G H I J K L
	; 5-------8-------7-------6
	; \| C __/\|

dwilliamson / SphereIndexing.glsl

Last active December 8, 2017 17:48

Given a 3D point on the sphere, map to a unique, sub-divided triangle index in O(1) with no recursive searching or table lookups.

	// Some shitty boolean logic code because WebGL...
	bool and(int x, int y)
	{
	return mod(float(x), exp2(float(y))) != 0.0;
	}


	int GetTriangleIndex(vec3 position)
	{
	// TODO: Add integer arithmetic to simplify the boolean logic.

anonymous / gist:de6b81c556b5dc7cdc8b

Created February 20, 2015 01:42

Kernel panic in latest OS X in 10 lines of C

	#include <unistd.h>
	#include <mach/mach.h>
	#include <mach/mach_vm.h>
	#include <mach-o/dyld.h>

	int
	main (int argc, char * argv[])
	{
	volatile char * library;
	const mach_vm_size_t page_size = getpagesize ();

nlguillemot / gist:add8ef4679581c76e000

Last active August 29, 2015 14:14

updated glsl.xml that handles identifiers. previously, the 3 in the identifier or macro name "vertic3s" would become highlighted. Also fixed "0" not being highlighted in layouts along with hex/octal constants being used in layouts.

	<?xml version="1.0" encoding="UTF-8"?>
	<!DOCTYPE language SYSTEM "language.dtd">
	<!-- the version of this file shows the largest supported OpenGL version, second digit is the minor patch level (Y.XP = supports GLSL X.Y0 with patchlevel P -->
	<language name="GLSL" section="Sources" extensions=".glsl;.vsh;.vert;.tcsh;.tcs;.tesh;.tes;.gsh;.geo;.geom;.fsh;.frag;.csh;.cs" mimetype="text/x-glslsrc" version="4.40" kateversion="2.4" author="Robert Menzel ([email protected])" license="LGPL">
	<highlighting>

	<!-- ####################################################################################################### keywords -->
	<list name="keywordsCompatibility">
	<!-- compatibility mode, older GLSL versions -->
	<item>attribute</item>

bjornblissing / CMakeManifest.txt

Last active July 30, 2024 22:12

CMake script to add manifest to exe-file

	# Amend manifest to tell Windows that the application is DPI aware (needed for Windows 8.1 and up)
	IF (MSVC)
	IF (CMAKE_MAJOR_VERSION LESS 3)
	MESSAGE(WARNING "CMake version 3.0 or newer is required use build variable TARGET_FILE")
	ELSE()
	ADD_CUSTOM_COMMAND(
	TARGET ${TARGET_TARGETNAME}
	POST_BUILD
	COMMAND "mt.exe" -manifest \"${CMAKE_CURRENT_SOURCE_DIR}\\dpiawarescaleing.manifest\" -inputresource:\"$<TARGET_FILE:${TARGET_TARGETNAME}>\"\;\#1 -outputresource:\"$<TARGET_FILE:${TARGET_TARGETNAME}>\"\;\#1
	COMMENT "Adding display aware manifest..."

rygorous / winrt_basic.cpp

Created April 7, 2014 18:11

WinRT basic D3D example, one file; all cube rendering/framework-y stuff removed, this just clears the screen every frame.

	#include <wrl/client.h>
	#include <d3d11_1.h>
	#include <agile.h>
	#include <ppl.h>
	#include <ppltasks.h>

	using namespace Microsoft::WRL;
	using namespace Windows::ApplicationModel;
	using namespace Windows::ApplicationModel::Core;
	using namespace Windows::ApplicationModel::Activation;

rygorous / gl_leak_check.c

Last active August 29, 2015 13:57

DYI GL object leak checker.

	static void check_for_leaks()
	{
	GLuint max_id = 10000; // better idea would be to keep track of assigned names.
	GLuint id;

	// if brute force doesn't work, you're not applying it hard enough
	for ( id = 1 ; id <= max_id ; id++ )
	{
	#define CHECK( type ) if ( glIs##type( id ) ) fprintf( stderr, "GLX: leaked " #type " handle 0x%x\n", (unsigned int) id )
	CHECK( Texture );

vittorioromeo / FastFunc.hpp

Last active August 24, 2023 08:15

Don Clugston's fast delegate C++11 implementation

	#ifndef SSVU_FASTFUNC
	#define SSVU_FASTFUNC

	#include <cstring>
	#include <type_traits>
	#include <cassert>
	#include <cstddef>
	#include <memory>
	#include <new>
	#include <utility>

aras-p / preprocessor_fun.h

Last active May 3, 2025 13:47

Things to commit just before leaving your job

	// Just before switching jobs:
	// Add one of these.
	// Preferably into the same commit where you do a large merge.
	//
	// This started as a tweet with a joke of "C++ pro-tip: #define private public",
	// and then it quickly escalated into more and more evil suggestions.
	// I've tried to capture interesting suggestions here.
	//
	// Contributors: @r2d2rigo, @joeldevahl, @msinilo, @_Humus_,
	// @YuriyODonnell, @rygorous, @cmuratori, @mike_acton, @grumpygiant,

Vladimír Vondruš mosra