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author | sanine <sanine.not@pm.me> | 2022-08-21 20:27:25 -0500 |
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committer | sanine <sanine.not@pm.me> | 2022-08-21 20:27:25 -0500 |
commit | 5a1275f661f2d879411411a1376b790f8aec7947 (patch) | |
tree | e552e2290883d3c6a40c4c123fed1ff5bdedeff9 /libs/glfw-3.3.8/docs/internal.dox | |
parent | ced4c513947132cae08c6627fd2030b4345eb39d (diff) |
add glfw library
Diffstat (limited to 'libs/glfw-3.3.8/docs/internal.dox')
-rw-r--r-- | libs/glfw-3.3.8/docs/internal.dox | 115 |
1 files changed, 115 insertions, 0 deletions
diff --git a/libs/glfw-3.3.8/docs/internal.dox b/libs/glfw-3.3.8/docs/internal.dox new file mode 100644 index 0000000..685c6d1 --- /dev/null +++ b/libs/glfw-3.3.8/docs/internal.dox @@ -0,0 +1,115 @@ +/*! + +@page internals_guide Internal structure + +@tableofcontents + +There are several interfaces inside GLFW. Each interface has its own area of +responsibility and its own naming conventions. + + +@section internals_public Public interface + +The most well-known is the public interface, described in the glfw3.h header +file. This is implemented in source files shared by all platforms and these +files contain no platform-specific code. This code usually ends up calling the +platform and internal interfaces to do the actual work. + +The public interface uses the OpenGL naming conventions except with GLFW and +glfw instead of GL and gl. For struct members, where OpenGL sets no precedent, +it use headless camel case. + +Examples: `glfwCreateWindow`, `GLFWwindow`, `GLFW_RED_BITS` + + +@section internals_native Native interface + +The [native interface](@ref native) is a small set of publicly available +but platform-specific functions, described in the glfw3native.h header file and +used to gain access to the underlying window, context and (on some platforms) +display handles used by the platform interface. + +The function names of the native interface are similar to those of the public +interface, but embeds the name of the interface that the returned handle is +from. + +Examples: `glfwGetX11Window`, `glfwGetWGLContext` + + +@section internals_internal Internal interface + +The internal interface consists of utility functions used by all other +interfaces. It is shared code implemented in the same shared source files as +the public and event interfaces. The internal interface is described in the +internal.h header file. + +The internal interface is in charge of GLFW's global data, which it stores in +a `_GLFWlibrary` struct named `_glfw`. + +The internal interface uses the same style as the public interface, except all +global names have a leading underscore. + +Examples: `_glfwIsValidContextConfig`, `_GLFWwindow`, `_glfw.monitorCount` + + +@section internals_platform Platform interface + +The platform interface implements all platform-specific operations as a service +to the public interface. This includes event processing. The platform +interface is never directly called by application code and never directly calls +application-provided callbacks. It is also prohibited from modifying the +platform-independent part of the internal structs. Instead, it calls the event +interface when events interesting to GLFW are received. + +The platform interface mirrors those parts of the public interface that needs to +perform platform-specific operations on some or all platforms. The are also +named the same except that the glfw function prefix is replaced by +_glfwPlatform. + +Examples: `_glfwPlatformCreateWindow` + +The platform interface also defines structs that contain platform-specific +global and per-object state. Their names mirror those of the internal +interface, except that an interface-specific suffix is added. + +Examples: `_GLFWwindowX11`, `_GLFWcontextWGL` + +These structs are incorporated as members into the internal interface structs +using special macros that name them after the specific interface used. This +prevents shared code from accidentally using these members. + +Examples: `window->win32.handle`, `_glfw.x11.display` + + +@section internals_event Event interface + +The event interface is implemented in the same shared source files as the public +interface and is responsible for delivering the events it receives to the +application, either via callbacks, via window state changes or both. + +The function names of the event interface use a `_glfwInput` prefix and the +ObjectEvent pattern. + +Examples: `_glfwInputWindowFocus`, `_glfwInputCursorPos` + + +@section internals_static Static functions + +Static functions may be used by any interface and have no prefixes or suffixes. +These use headless camel case. + +Examples: `isValidElementForJoystick` + + +@section internals_config Configuration macros + +GLFW uses a number of configuration macros to select at compile time which +interfaces and code paths to use. They are defined in the glfw_config.h header file, +which is generated from the `glfw_config.h.in` file by CMake. + +Configuration macros the same style as tokens in the public interface, except +with a leading underscore. + +Examples: `_GLFW_WIN32`, `_GLFW_BUILD_DLL` + +*/ |