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citro2d

( ͡° ͜ʖ ͡°)

Library for drawing 2D graphics using the Nintendo 3DS's PICA200 GPU.

This library contains optimized routines that allow 3DS homebrew developers to develop applications that take full advantage of the GPU to draw 2D graphics. The routines in this library have been carefully designed and optimized for the purpose of removing bottlenecks and allowing higher GPU throughput.

citro2d uses citro3d under the hood to talk to the GPU. It is possible to use citro2d on its own, or use it alongside citro3d to draw mixed 2D and 3D content.

Features:

  • Lightweight and straightforward API
  • Full doxygen documentation
  • Drawing on any surface (C3D_RenderTarget)
  • Drawing images and sprites (the latter contain state whereas the former don't)
  • Drawing text using the system font
  • Spritesheet/texture atlas support using tex3ds
  • Scaling, flipping, rotation
  • Drawing untextured triangles and rectangles
  • Per-vertex tinting with configurable blend factor (additive color blending with user specified colors)
  • Flexible and configurable gradients
  • Full-screen fade-out/fade-in transitions (to any color)
  • Concurrent usage of citro2d and citro3d

About

Library for drawing 2D graphics using the Nintendo 3DS's PICA200 GPU

citro2d.devkitpro.org/

Topics

2dcitro2dcitro3ddevkitprogpugraphicshomebrewlibctrunintendonintendo-3dspica200spritesprites

Resources

Readme
Zlib license
Activity
Custom properties

Stars

211 stars

Watchers

14 watching

Forks

37 forks
Report repository

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Packages

Contributors

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, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
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(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
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btn.onmouseover = function() { this.style.opacity = '1'; };
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})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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citro2d
( ͡° ͜ʖ ͡°)
Library for drawing 2D graphics using the Nintendo 3DS's PICA200 GPU.
This library contains optimized routines that allow 3DS homebrew developers to
develop applications that take full advantage of the GPU to draw 2D graphics.
The routines in this library have been carefully designed and optimized for
the purpose of removing bottlenecks and allowing higher GPU throughput.
citro2d uses citro3d under the hood to
talk to the GPU. It is possible to use citro2d on its own, or use it alongside
citro3d to draw mixed 2D and 3D content.
Features:
  • Lightweight and straightforward API
  • Full doxygen documentation
  • Drawing on any surface (C3D_RenderTarget)
  • Drawing images and sprites (the latter contain state whereas the former don't)
  • Drawing text using the system font
  • Spritesheet/texture atlas support using tex3ds
  • Scaling, flipping, rotation
  • Drawing untextured triangles and rectangles
  • Per-vertex tinting with configurable blend factor (additive color blending with user specified colors)
  • Flexible and configurable gradients
  • Full-screen fade-out/fade-in transitions (to any color)
  • Concurrent usage of citro2d and citro3d
About
Library for drawing 2D graphics using the Nintendo 3DS's PICA200 GPU
citro2d.devkitpro.org/
Topics
2dcitro2dcitro3ddevkitprogpugraphicshomebrewlibctrunintendonintendo-3dspica200spritesprites
Resources
Readme
Zlib license
Activity
Custom properties
Stars
211 stars
Watchers
14 watching
Forks
37 forks
Report repository
Releases
Sponsor this project
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
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.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
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document.head.appendChild(style);
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}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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citro2d
( ͡° ͜ʖ ͡°)
Library for drawing 2D graphics using the Nintendo 3DS's PICA200 GPU.
This library contains optimized routines that allow 3DS homebrew developers to
develop applications that take full advantage of the GPU to draw 2D graphics.
The routines in this library have been carefully designed and optimized for
the purpose of removing bottlenecks and allowing higher GPU throughput.
citro2d uses citro3d under the hood to
talk to the GPU. It is possible to use citro2d on its own, or use it alongside
citro3d to draw mixed 2D and 3D content.
Features:
  • Lightweight and straightforward API
  • Full doxygen documentation
  • Drawing on any surface (C3D_RenderTarget)
  • Drawing images and sprites (the latter contain state whereas the former don't)
  • Drawing text using the system font
  • Spritesheet/texture atlas support using tex3ds
  • Scaling, flipping, rotation
  • Drawing untextured triangles and rectangles
  • Per-vertex tinting with configurable blend factor (additive color blending with user specified colors)
  • Flexible and configurable gradients
  • Full-screen fade-out/fade-in transitions (to any color)
  • Concurrent usage of citro2d and citro3d
About
Library for drawing 2D graphics using the Nintendo 3DS's PICA200 GPU
citro2d.devkitpro.org/
Topics
2dcitro2dcitro3ddevkitprogpugraphicshomebrewlibctrunintendonintendo-3dspica200spritesprites
Resources
Readme
Zlib license
Activity
Custom properties
Stars
211 stars
Watchers
14 watching
Forks
37 forks
Report repository
Releases
Sponsor this project
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
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if (q) {
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function highlight(node) {
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var found = false;
terms.forEach(function(term) {
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parts.forEach(function(part, i) {
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span.className = 'userscript-highlight';
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} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
}
}
highlight(document.body);
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var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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citro2d
( ͡° ͜ʖ ͡°)
Library for drawing 2D graphics using the Nintendo 3DS's PICA200 GPU.
This library contains optimized routines that allow 3DS homebrew developers to
develop applications that take full advantage of the GPU to draw 2D graphics.
The routines in this library have been carefully designed and optimized for
the purpose of removing bottlenecks and allowing higher GPU throughput.
citro2d uses citro3d under the hood to
talk to the GPU. It is possible to use citro2d on its own, or use it alongside
citro3d to draw mixed 2D and 3D content.
Features:
  • Lightweight and straightforward API
  • Full doxygen documentation
  • Drawing on any surface (C3D_RenderTarget)
  • Drawing images and sprites (the latter contain state whereas the former don't)
  • Drawing text using the system font
  • Spritesheet/texture atlas support using tex3ds
  • Scaling, flipping, rotation
  • Drawing untextured triangles and rectangles
  • Per-vertex tinting with configurable blend factor (additive color blending with user specified colors)
  • Flexible and configurable gradients
  • Full-screen fade-out/fade-in transitions (to any color)
  • Concurrent usage of citro2d and citro3d
About
Library for drawing 2D graphics using the Nintendo 3DS's PICA200 GPU
citro2d.devkitpro.org/
Topics
2dcitro2dcitro3ddevkitprogpugraphicshomebrewlibctrunintendonintendo-3dspica200spritesprites
Resources
Readme
Zlib license
Activity
Custom properties
Stars
211 stars
Watchers
14 watching
Forks
37 forks
Report repository
Releases
Sponsor this project
Packages
Contributors
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

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citro2d
( ͡° ͜ʖ ͡°)
Library for drawing 2D graphics using the Nintendo 3DS's PICA200 GPU.
This library contains optimized routines that allow 3DS homebrew developers to
develop applications that take full advantage of the GPU to draw 2D graphics.
The routines in this library have been carefully designed and optimized for
the purpose of removing bottlenecks and allowing higher GPU throughput.
citro2d uses citro3d under the hood to
talk to the GPU. It is possible to use citro2d on its own, or use it alongside
citro3d to draw mixed 2D and 3D content.
Features:
  • Lightweight and straightforward API
  • Full doxygen documentation
  • Drawing on any surface (C3D_RenderTarget)
  • Drawing images and sprites (the latter contain state whereas the former don't)
  • Drawing text using the system font
  • Spritesheet/texture atlas support using tex3ds
  • Scaling, flipping, rotation
  • Drawing untextured triangles and rectangles
  • Per-vertex tinting with configurable blend factor (additive color blending with user specified colors)
  • Flexible and configurable gradients
  • Full-screen fade-out/fade-in transitions (to any color)
  • Concurrent usage of citro2d and citro3d
About
Library for drawing 2D graphics using the Nintendo 3DS's PICA200 GPU
citro2d.devkitpro.org/
Topics
2dcitro2dcitro3ddevkitprogpugraphicshomebrewlibctrunintendonintendo-3dspica200spritesprites
Resources
Readme
Zlib license
Activity
Custom properties
Stars
211 stars
Watchers
14 watching
Forks
37 forks
Report repository
Releases
Sponsor this project
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
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setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
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}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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citro2d
( ͡° ͜ʖ ͡°)
Library for drawing 2D graphics using the Nintendo 3DS's PICA200 GPU.
This library contains optimized routines that allow 3DS homebrew developers to
develop applications that take full advantage of the GPU to draw 2D graphics.
The routines in this library have been carefully designed and optimized for
the purpose of removing bottlenecks and allowing higher GPU throughput.
citro2d uses citro3d under the hood to
talk to the GPU. It is possible to use citro2d on its own, or use it alongside
citro3d to draw mixed 2D and 3D content.
Features:
  • Lightweight and straightforward API
  • Full doxygen documentation
  • Drawing on any surface (C3D_RenderTarget)
  • Drawing images and sprites (the latter contain state whereas the former don't)
  • Drawing text using the system font
  • Spritesheet/texture atlas support using tex3ds
  • Scaling, flipping, rotation
  • Drawing untextured triangles and rectangles
  • Per-vertex tinting with configurable blend factor (additive color blending with user specified colors)
  • Flexible and configurable gradients
  • Full-screen fade-out/fade-in transitions (to any color)
  • Concurrent usage of citro2d and citro3d
About
Library for drawing 2D graphics using the Nintendo 3DS's PICA200 GPU
citro2d.devkitpro.org/
Topics
2dcitro2dcitro3ddevkitprogpugraphicshomebrewlibctrunintendonintendo-3dspica200spritesprites
Resources
Readme
Zlib license
Activity
Custom properties
Stars
211 stars
Watchers
14 watching
Forks
37 forks
Report repository
Releases
Sponsor this project
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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citro2d
( ͡° ͜ʖ ͡°)
Library for drawing 2D graphics using the Nintendo 3DS's PICA200 GPU.
This library contains optimized routines that allow 3DS homebrew developers to
develop applications that take full advantage of the GPU to draw 2D graphics.
The routines in this library have been carefully designed and optimized for
the purpose of removing bottlenecks and allowing higher GPU throughput.
citro2d uses citro3d under the hood to
talk to the GPU. It is possible to use citro2d on its own, or use it alongside
citro3d to draw mixed 2D and 3D content.
Features:
  • Lightweight and straightforward API
  • Full doxygen documentation
  • Drawing on any surface (C3D_RenderTarget)
  • Drawing images and sprites (the latter contain state whereas the former don't)
  • Drawing text using the system font
  • Spritesheet/texture atlas support using tex3ds
  • Scaling, flipping, rotation
  • Drawing untextured triangles and rectangles
  • Per-vertex tinting with configurable blend factor (additive color blending with user specified colors)
  • Flexible and configurable gradients
  • Full-screen fade-out/fade-in transitions (to any color)
  • Concurrent usage of citro2d and citro3d
About
Library for drawing 2D graphics using the Nintendo 3DS's PICA200 GPU
citro2d.devkitpro.org/
Topics
2dcitro2dcitro3ddevkitprogpugraphicshomebrewlibctrunintendonintendo-3dspica200spritesprites
Resources
Readme
Zlib license
Activity
Custom properties
Stars
211 stars
Watchers
14 watching
Forks
37 forks
Report repository
Releases
Sponsor this project
Packages
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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citro2d
( ͡° ͜ʖ ͡°)
Library for drawing 2D graphics using the Nintendo 3DS's PICA200 GPU.
This library contains optimized routines that allow 3DS homebrew developers to
develop applications that take full advantage of the GPU to draw 2D graphics.
The routines in this library have been carefully designed and optimized for
the purpose of removing bottlenecks and allowing higher GPU throughput.
citro2d uses citro3d under the hood to
talk to the GPU. It is possible to use citro2d on its own, or use it alongside
citro3d to draw mixed 2D and 3D content.
Features:
  • Lightweight and straightforward API
  • Full doxygen documentation
  • Drawing on any surface (C3D_RenderTarget)
  • Drawing images and sprites (the latter contain state whereas the former don't)
  • Drawing text using the system font
  • Spritesheet/texture atlas support using tex3ds
  • Scaling, flipping, rotation
  • Drawing untextured triangles and rectangles
  • Per-vertex tinting with configurable blend factor (additive color blending with user specified colors)
  • Flexible and configurable gradients
  • Full-screen fade-out/fade-in transitions (to any color)
  • Concurrent usage of citro2d and citro3d
About
Library for drawing 2D graphics using the Nintendo 3DS's PICA200 GPU
citro2d.devkitpro.org/
Topics
2dcitro2dcitro3ddevkitprogpugraphicshomebrewlibctrunintendonintendo-3dspica200spritesprites
Resources
Readme
Zlib license
Activity
Custom properties
Stars
211 stars
Watchers
14 watching
Forks
37 forks
Report repository
Releases
Sponsor this project
Packages
Contributors
Languages