{"passport":{"unfragile":{"@version":"1.0","version":"2026-05","artifact":{"id":"github-dav1dde--glad","slug":"dav1dde--glad","name":"glad","type":"repo","url":"https://gen.glad.sh/","page_url":"https://unfragile.ai/dav1dde--glad","categories":["coding"],"tags":["c","code-generation","cpp","d","egl","generator","gl","glad","gles","gles2","glx","loader-generator","nim","opengl","pascal","python","rust","vulkan","wgl"],"pricing":{"model":"open_source","free":true,"starting_price":null},"status":"inactive","verified":false},"capabilities":[{"id":"github-dav1dde--glad__cap_0","uri":"capability://data.processing.analysis.khronos.xml.specification.parsing.with.feature.set.extraction","name":"khronos xml specification parsing with feature-set extraction","description":"Parses official Khronos XML specifications (OpenGL, Vulkan, EGL, GLX, WGL) into an in-memory object model representing types, commands, enumerations, and extensions. Uses a Specification class that organizes parsed data into FeatureSets, enabling selective inclusion of API versions, profiles (core/compatibility), and individual extensions. The parser builds a complete dependency graph of API features, allowing downstream generators to understand which functions depend on which types and extensions.","intents":["I need to generate loader code for a specific OpenGL version (e.g., 3.3 core) without including deprecated functions","I want to include only the extensions my application actually uses to minimize generated code size","I need to understand which Vulkan functions are available in a specific API version before generating bindings"],"best_for":["Graphics engine developers targeting multiple OpenGL/Vulkan versions","Cross-platform game studios needing minimal loader footprints","Library maintainers generating bindings for multiple graphics APIs"],"limitations":["Specification parsing is one-time operation — changes to Khronos specs require re-running generation","No incremental parsing — entire spec is loaded into memory regardless of selected features","Limited to official Khronos XML format — custom API specifications not supported"],"requires":["Python 3.6+","Official Khronos XML specification files (bundled or downloaded)","Jinja2 template engine for downstream code generation"],"input_types":["Khronos XML specification files","API selection strings (e.g., 'gl:core=3.3', 'vulkan=1.2')","Extension name lists"],"output_types":["In-memory Specification object with FeatureSet hierarchy","Structured data representing types, commands, enumerations"],"categories":["data-processing-analysis","parser"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"github-dav1dde--glad__cap_1","uri":"capability://code.generation.editing.multi.language.code.generation.via.jinja2.template.system","name":"multi-language code generation via jinja2 template system","description":"Generates language-specific loader code (C, C++, Rust, D, Nim, Pascal) using a plugin-based architecture where each language has a BaseGenerator subclass that processes Jinja2 templates. The JinjaGenerator class provides template rendering with access to the parsed specification's types, commands, and extensions. Language-specific generators can override template paths and add custom filters/globals to handle language idioms (e.g., Rust's unsafe blocks, C's function pointers).","intents":["I need to generate OpenGL loaders for both C and Rust projects from a single specification","I want to customize how functions are declared in the generated code (e.g., add debug logging, custom calling conventions)","I need to support a new programming language for graphics API loading without rewriting the entire parser"],"best_for":["Polyglot teams using multiple languages for graphics development","Language binding maintainers needing consistent API coverage across languages","Graphics framework developers supporting multiple target languages"],"limitations":["Template system adds ~50-100ms per generation pass due to Jinja2 rendering overhead","Language-specific idioms must be encoded in templates — complex logic requires custom generator subclasses","No built-in type mapping — developers must manually define how C types map to language-specific equivalents (e.g., GLuint → u32 in Rust)"],"requires":["Python 3.6+","Jinja2 2.11+","Language-specific generator plugin (built-in for C/C++/Rust; custom for others)","Template files for target language in glad/generator/{language}/templates/"],"input_types":["Specification object with selected features","Language identifier string (c, cpp, rust, d, nim, pascal)","Generator configuration options (debug mode, on-demand loading, etc.)"],"output_types":["Language-specific source files (.c, .h, .rs, .d, .nim, .pas)","Header files with function declarations and type definitions"],"categories":["code-generation-editing","template-engine"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"github-dav1dde--glad__cap_10","uri":"capability://code.generation.editing.on.demand.function.loading.with.lazy.initialization","name":"on-demand function loading with lazy initialization","description":"Generates loader code that defers function pointer resolution until first use rather than loading all functions at initialization time. When a function is called for the first time, the loader checks if the function pointer is NULL and loads it on-demand using the platform-specific resolution mechanism. This reduces initialization time and memory usage for applications that only use a subset of available functions. Implemented via optional wrapper macros or inline functions that check and load function pointers.","intents":["I want to reduce graphics API loader initialization time by deferring function loading","I need to support applications that use only a small subset of available functions","I want to minimize memory usage for function pointer storage in embedded graphics applications"],"best_for":["Graphics applications with large feature sets but selective usage patterns","Embedded graphics systems with limited memory","Applications prioritizing startup time over function call overhead"],"limitations":["Lazy loading adds function pointer indirection overhead (~5-10ns per call) due to NULL checks","First call to a function is slower due to on-demand loading","Not thread-safe by default — requires synchronization if multiple threads call functions simultaneously","Complicates error handling — function load failures occur at call time rather than initialization"],"requires":["Generated loader code compiled with lazy loading enabled","Platform-specific function resolution mechanism available at call time","Application handling potential load failures at call time"],"input_types":["Specification with selected features","Generator configuration flag enabling lazy loading"],"output_types":["Generated code with lazy loading wrapper macros or inline functions","Function pointer storage with NULL initialization"],"categories":["code-generation-editing","performance-optimization"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"github-dav1dde--glad__cap_11","uri":"capability://data.processing.analysis.specification.version.and.profile.selection.with.dependency.resolution","name":"specification version and profile selection with dependency resolution","description":"Provides a declarative API for selecting specific graphics API versions (e.g., OpenGL 3.3, Vulkan 1.2) and profiles (core, compatibility, es) with automatic dependency resolution. When a developer specifies 'OpenGL 3.3 core', GLAD automatically includes all types and functions required by that version and profile, resolving dependencies on lower API versions. The selection mechanism prevents invalid combinations (e.g., core profile with deprecated functions) and provides clear error messages when incompatible selections are made.","intents":["I need to generate a loader for OpenGL 3.3 core without accidentally including deprecated functions","I want to understand which functions are available in a specific API version before generating code","I need to generate loaders for multiple API versions and ensure consistent feature coverage"],"best_for":["Graphics developers targeting specific API versions","Cross-platform teams needing consistent API coverage across platforms","Graphics framework developers supporting multiple API versions"],"limitations":["Version selection is static — cannot change API version at runtime","Profile selection is exclusive — cannot mix core and compatibility profiles in a single loader","Dependency resolution is one-way — cannot exclude specific functions from a version","No built-in version negotiation — applications must handle cases where requested version is unavailable"],"requires":["Khronos specification with version and profile information","API selection string or programmatic API specifying version and profile"],"input_types":["API identifier (gl, vulkan, egl, glx, wgl)","Version string (e.g., '3.3', '1.2')","Profile identifier (core, compatibility, es)"],"output_types":["Specification object with selected features","List of included types and functions","Validation errors if selection is invalid"],"categories":["data-processing-analysis","api-selection"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"github-dav1dde--glad__cap_2","uri":"capability://code.generation.editing.dynamic.function.loading.with.platform.specific.resolver.mechanisms","name":"dynamic function loading with platform-specific resolver mechanisms","description":"Generates loader code that dynamically resolves graphics API functions at runtime using platform-specific mechanisms: wglGetProcAddress on Windows, glXGetProcAddress on Linux/X11, and dlopen/dlsym on Unix-like systems. The generated loader provides a consistent cross-platform interface that abstracts these platform differences. Supports both eager loading (all functions loaded at initialization) and lazy loading (functions loaded on first use), with optional debug mode that logs which functions failed to load.","intents":["I need to load OpenGL functions at runtime without linking against platform-specific libraries","I want to support multiple graphics API versions on the same system and load the appropriate one at runtime","I need to detect which extensions are actually available on the user's GPU and only load those functions"],"best_for":["Cross-platform graphics applications avoiding static library dependencies","Game engines supporting multiple GPU vendors and driver versions","Headless rendering applications that need to load graphics APIs without a display server"],"limitations":["Lazy loading adds function pointer indirection overhead (~5-10ns per call) compared to direct linking","Platform-specific code paths required for Windows/Linux/macOS — generated loaders are not portable across platforms","No built-in fallback mechanism — if a required function fails to load, application must handle the error explicitly","Debug mode logging adds ~1-2% performance overhead due to string formatting and I/O"],"requires":["Target platform's graphics API headers (GL/gl.h, vulkan/vulkan.h, etc.)","Platform-specific function resolution API (wglGetProcAddress, glXGetProcAddress, dlopen)","Generated loader code compiled and linked into application"],"input_types":["Specification with selected API version and extensions","Generator configuration (eager vs lazy loading, debug mode)"],"output_types":["C/C++ source files with function pointers and loader initialization code","Header files exposing loader API (e.g., gladLoadGL(), gladLoadVulkan())"],"categories":["code-generation-editing","platform-abstraction"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"github-dav1dde--glad__cap_3","uri":"capability://code.generation.editing.multi.context.graphics.api.support.with.per.context.function.dispatch","name":"multi-context graphics api support with per-context function dispatch","description":"Generates loader code that supports multiple simultaneous graphics API contexts (e.g., multiple OpenGL contexts or Vulkan devices) by storing function pointers in context-specific structures rather than global variables. The generated code provides context-aware function dispatch mechanisms, allowing applications to switch between contexts and have the correct function pointers automatically used. This is particularly important for Vulkan (which is inherently multi-device) and for OpenGL applications using multiple rendering contexts.","intents":["I need to render to multiple OpenGL contexts in the same application (e.g., main window + offscreen rendering)","I want to support multiple Vulkan devices and dispatch function calls to the correct device","I need thread-safe graphics API access where different threads use different contexts"],"best_for":["Multi-threaded graphics applications with per-thread rendering contexts","Vulkan applications managing multiple physical devices","Advanced OpenGL applications using multiple rendering targets and contexts"],"limitations":["Multi-context code generation adds ~20-30% to generated code size due to per-context function pointer storage","Requires explicit context switching API calls — no automatic context detection","Thread-local storage overhead (~5-10ns per function call) if using TLS for context dispatch","Not all graphics APIs benefit equally — OpenGL contexts are more common than Vulkan multi-device scenarios"],"requires":["Generated loader code compiled with multi-context support enabled","Application code managing context lifecycle and switching","Platform support for thread-local storage (TLS) if using thread-aware dispatch"],"input_types":["Specification with selected API version","Generator configuration flag enabling multi-context support"],"output_types":["C/C++ source files with context-specific function pointer structures","Context management API (gladMakeContextCurrent, gladGetCurrentContext, etc.)"],"categories":["code-generation-editing","multi-context-support"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"github-dav1dde--glad__cap_4","uri":"capability://code.generation.editing.extension.availability.detection.and.selective.loading","name":"extension availability detection and selective loading","description":"Generates loader code that queries the graphics API at runtime to determine which extensions are available on the user's GPU/driver, then selectively loads only those extension functions. The generated code provides boolean flags (e.g., GLAD_GL_ARB_multisample) indicating whether each extension is available, allowing applications to conditionally use advanced features. This is implemented via glGetString(GL_EXTENSIONS) for OpenGL or vkEnumerateInstanceExtensionProperties for Vulkan.","intents":["I need to detect which OpenGL extensions are available and use them if present, with fallbacks for older hardware","I want to generate code that only loads Vulkan extensions supported by the target device","I need to provide graceful degradation when advanced graphics features aren't available"],"best_for":["Graphics applications targeting diverse hardware (mobile to desktop)","Game engines supporting multiple GPU generations","Cross-platform applications needing feature detection at runtime"],"limitations":["Extension detection requires graphics context to be initialized first — cannot detect extensions before context creation","Extension string parsing adds ~5-10ms to loader initialization time","Some extensions may be reported as available but not actually functional due to driver bugs","No built-in fallback mechanism — applications must implement feature-specific code paths"],"requires":["Initialized graphics context (OpenGL or Vulkan)","Generated loader code with extension detection enabled","Application code checking extension availability flags before using extension functions"],"input_types":["Specification with selected extensions","Generator configuration enabling extension detection"],"output_types":["C/C++ source files with extension availability flags (GLAD_GL_EXT_*)","Extension detection code querying graphics API at runtime"],"categories":["code-generation-editing","feature-detection"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"github-dav1dde--glad__cap_5","uri":"capability://automation.workflow.cmake.integration.for.build.time.loader.generation","name":"cmake integration for build-time loader generation","description":"Provides CMake functions and modules that invoke GLAD during the build process, generating loader code as part of the project's build pipeline. The integration allows developers to specify API requirements (e.g., OpenGL 3.3 core) in CMakeLists.txt, and GLAD automatically generates the appropriate loader code and adds it to the build. This eliminates the need to pre-generate and commit loader code to version control.","intents":["I want to generate graphics API loaders as part of my CMake build without pre-generating code","I need to update my OpenGL version requirement and have the loader code automatically regenerated","I want to avoid committing generated code to version control and generate it on-demand during builds"],"best_for":["CMake-based graphics projects (game engines, rendering libraries)","Teams using CI/CD pipelines that need reproducible builds","Projects targeting multiple platforms with different API requirements"],"limitations":["CMake integration adds ~2-5 seconds to clean builds due to Python invocation and code generation","Requires Python 3.6+ to be available in the build environment","CMake version 3.10+ required for modern function syntax","No caching of generated code — regenerated on every clean build"],"requires":["CMake 3.10+","Python 3.6+ in build environment","GLAD Python package installed or available in project","CMakeLists.txt with GLAD integration code"],"input_types":["CMake variables specifying API version and extensions (e.g., GLAD_GL_VERSION=3.3, GLAD_GL_PROFILE=core)","Output directory for generated files"],"output_types":["Generated C/C++ loader source files","CMake targets for linking generated code into application"],"categories":["automation-workflow","build-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"github-dav1dde--glad__cap_6","uri":"capability://automation.workflow.python.package.distribution.with.pip.installable.loader.generation","name":"python package distribution with pip-installable loader generation","description":"Packages GLAD as a Python module installable via pip, allowing developers to invoke GLAD programmatically from Python code or the command line. The package includes all specifications, templates, and generators, making it self-contained and easy to integrate into Python-based build systems or scripts. Developers can import glad and call generation functions directly, or use the command-line interface via python -m glad.","intents":["I want to install GLAD via pip and use it in my Python build scripts","I need to programmatically generate loaders from Python code without invoking a separate tool","I want to integrate GLAD into a Python-based build system or CI/CD pipeline"],"best_for":["Python-based graphics projects and build systems","Developers using Python for build automation and code generation","CI/CD pipelines using Python for orchestration"],"limitations":["Requires Python 3.6+ in the environment where generation occurs","Generated code is language-specific (C/C++/Rust) but generation tool is Python-only","No async/await support — generation is synchronous and blocks the calling thread","Package size ~2-5MB due to bundled specifications and templates"],"requires":["Python 3.6+","pip package manager","Jinja2 2.11+ (installed as dependency)"],"input_types":["API selection parameters (api, version, profile, extensions)","Output directory path","Generator configuration options"],"output_types":["Generated loader source files in specified directory","Return value indicating success/failure"],"categories":["automation-workflow","tool-use-integration"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"github-dav1dde--glad__cap_7","uri":"capability://code.generation.editing.alias.handling.and.function.name.mapping.across.api.versions","name":"alias handling and function name mapping across api versions","description":"Handles function name aliases and mappings that occur when graphics APIs evolve — for example, glClearDepth (OpenGL 1.0) was renamed to glClearDepthf in OpenGL ES. The generator tracks these aliases and can generate code that maps old function names to new implementations or provides both names pointing to the same function pointer. This enables applications to use either the old or new function name depending on their compatibility requirements.","intents":["I need to support both old and new OpenGL function names in the same codebase","I want to migrate from OpenGL ES 2.0 to 3.0 but keep using old function names as aliases","I need to understand which functions are aliases of each other across API versions"],"best_for":["Long-lived graphics applications maintaining backward compatibility","Libraries supporting multiple API versions simultaneously","Porting code between OpenGL and OpenGL ES variants"],"limitations":["Alias tracking adds complexity to specification parsing — requires understanding API evolution history","Not all function aliases are documented in Khronos specs — some require manual mapping","Generated code with aliases is slightly larger due to duplicate function pointer entries","Alias resolution is one-way — cannot automatically determine if a function is an alias of another"],"requires":["Specification with alias information (parsed from Khronos XML)","Generator configuration specifying whether to include aliases"],"input_types":["Specification with API version and profile","Alias mapping configuration"],"output_types":["Generated code with function pointer aliases","Mapping information showing which functions are aliases"],"categories":["code-generation-editing","api-compatibility"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"github-dav1dde--glad__cap_8","uri":"capability://code.generation.editing.language.specific.code.generation.with.idiom.aware.templates","name":"language-specific code generation with idiom-aware templates","description":"Generates code that follows language-specific idioms and conventions for each supported language (C, C++, Rust, D, Nim, Pascal). For example, Rust generation wraps unsafe function calls in unsafe blocks, C++ generation uses namespaces, and D generation uses D-specific calling conventions. Each language has its own template directory and generator subclass that can customize how types, functions, and extensions are represented in the target language.","intents":["I need Rust bindings for OpenGL that follow Rust idioms (unsafe blocks, Result types)","I want C++ code with proper namespacing and RAII patterns for graphics API loading","I need to generate loaders for a language not yet supported by GLAD"],"best_for":["Polyglot graphics projects using multiple languages","Language binding maintainers creating idiomatic wrappers","Graphics framework developers supporting multiple target languages"],"limitations":["Each new language requires a custom generator subclass and template set — significant implementation effort","Language-specific features (e.g., Rust's ownership system) cannot be fully expressed in generated code — requires manual wrapping","Type mapping between C and target language must be manually defined — no automatic conversion","Template customization requires understanding both Jinja2 and target language syntax"],"requires":["Language-specific generator plugin (built-in for C/C++/Rust; custom for others)","Jinja2 templates for target language in glad/generator/{language}/templates/","Understanding of target language's calling conventions and idioms"],"input_types":["Specification with selected features","Language identifier (c, cpp, rust, d, nim, pascal)","Language-specific configuration options"],"output_types":["Language-specific source files with idiomatic code","Type definitions and function declarations in target language"],"categories":["code-generation-editing","language-specific"],"confidence":0.5,"matches":0,"success_rate":0},{"id":"github-dav1dde--glad__cap_9","uri":"capability://code.generation.editing.debug.mode.with.function.call.logging.and.error.tracking","name":"debug mode with function call logging and error tracking","description":"Generates loader code that optionally logs all graphics API function calls and tracks which functions failed to load at initialization time. When debug mode is enabled, the generated code wraps each function call with logging statements that record the function name, arguments (if available), and return value. Failed function loads are tracked and reported, helping developers identify missing extensions or driver incompatibilities. This is implemented via optional wrapper functions or macros that intercept function calls.","intents":["I need to debug why certain OpenGL extensions aren't loading on a user's system","I want to log all graphics API calls for performance profiling and debugging","I need to identify which functions are actually being called in my application"],"best_for":["Graphics application developers debugging driver compatibility issues","Performance profilers analyzing graphics API usage patterns","QA teams testing graphics applications on diverse hardware"],"limitations":["Debug logging adds 5-10% performance overhead due to string formatting and I/O","Logging all function calls generates large log files (~100MB+ for typical frame)","Debug mode must be enabled at code generation time — cannot be toggled at runtime","Argument logging is limited — complex types (pointers, structs) cannot be logged without custom code"],"requires":["Generated loader code compiled with debug mode enabled","Logging infrastructure (stdout, file, or custom callback)","Application code to parse and analyze debug logs"],"input_types":["Specification with selected features","Generator configuration flag enabling debug mode","Optional logging callback function"],"output_types":["Generated code with logging wrapper functions","Debug logs containing function call traces and load failures"],"categories":["code-generation-editing","debugging"],"confidence":0.5,"matches":0,"success_rate":0}],"trust":{"score":41,"verified":false,"data_access_risk":"low","permissions":["Python 3.6+","Official Khronos XML specification files (bundled or downloaded)","Jinja2 template engine for downstream code generation","Jinja2 2.11+","Language-specific generator plugin (built-in for C/C++/Rust; custom for others)","Template files for target language in glad/generator/{language}/templates/","Generated loader code compiled with lazy loading enabled","Platform-specific function resolution mechanism available at call time","Application handling potential load failures at call time","Khronos specification with version and profile information"],"failure_modes":["Specification parsing is one-time operation — changes to Khronos specs require re-running generation","No incremental parsing — entire spec is loaded into memory regardless of selected features","Limited to official Khronos XML format — custom API specifications not supported","Template system adds ~50-100ms per generation pass due to Jinja2 rendering overhead","Language-specific idioms must be encoded in templates — complex logic requires custom generator subclasses","No built-in type mapping — developers must manually define how C types map to language-specific equivalents (e.g., GLuint → u32 in Rust)","Lazy loading adds function pointer indirection overhead (~5-10ns per call) due to NULL checks","First call to a function is slower due to on-demand loading","Not thread-safe by default — requires synchronization if multiple threads call functions simultaneously","Complicates error handling — function load failures occur at call time rather than initialization","builder identity is not verified yet","no observed match outcomes yet"],"rank_breakdown":{"adoption":0.5820272846506845,"quality":0.24,"ecosystem":0.6000000000000001,"match_graph":0.25,"freshness":0.5,"weights":{"adoption":0.3,"quality":0.2,"ecosystem":0.15,"match_graph":0.3,"freshness":0.05}},"observed_outcomes":{"matches":0,"success_rate":0,"avg_confidence":0,"top_intents":[],"last_matched_at":null},"maintenance":{"status":"inactive","updated_at":"2026-05-05T11:48:09.006Z","last_scraped_at":"2026-05-03T13:58:37.060Z","last_commit":"2026-04-09T06:36:29Z"},"community":{"stars":4497,"forks":504,"weekly_downloads":null,"model_downloads":null,"model_likes":null}},"distribution":{"claim_url":"https://unfragile.ai/submit?claim=dav1dde--glad","compare_url":"https://unfragile.ai/compare?artifact=dav1dde--glad"}},"signature":"DgFrKLJx7YEhupTZ7mn/txymHy/qJ0FgLEiueK3rJdAbzarIRklMACar4dwgifhKQyGaVF8MRkR/t1XfKNL0Bw==","signedAt":"2026-06-16T18:58:17.515Z","signedBy":"unfragile.ai","version":1},"_links":{"self":"https://unfragile.ai/api/v1/passport/dav1dde--glad","artifact":"https://unfragile.ai/dav1dde--glad","verify":"https://unfragile.ai/api/v1/verify?slug=dav1dde--glad","publicKey":"https://unfragile.ai/api/v1/trust-passport-public-key","spec":"https://unfragile.ai/trust","schema":"https://unfragile.ai/schema.json","docs":"https://unfragile.ai/docs"}}