app_input.h File Reference

User input orchestration and application state toggles. More...

#include "gl_common.h"

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Functions
void	key_callback (GLFWwindow *window, int key, int scancode, int action, int mods)
	Primary GLFW key callback. More...
void	mouse_callback (GLFWwindow *window, double xpos, double ypos)
	Primary GLFW mouse position callback. More...
void	scroll_callback (GLFWwindow *window, double xoffset, double yoffset)
	Primary GLFW scroll callback. More...
void	framebuffer_size_callback (GLFWwindow *window, int width, int height)
	Primary GLFW framebuffer size callback. More...
void	handle_app_input (App *app, int key, int mods)
	Dispatches application-level logic for key inputs. More...
void	app_handle_env_input (App *app, int action, int mods, int key)
	Handles input for cycling environment maps. More...
void	app_toggle_fullscreen (App *app, GLFWwindow *window)
	Toggles the application window between Windowed and Fullscreen. More...
void	app_save_png_frame (App *app, const char *filename)
	Captures the current framebuffer and saves it as a PNG file. More...

Detailed Description

User input orchestration and application state toggles.

This module manages all high-level input logic, bridging GLFW raw events to application-specific actions like post-processing toggles, environment map switching, and camera movement.

Function Documentation

app_handle_env_input()

void app_handle_env_input	(	App *	app,
		int	action,
		int	mods,
		int	key
	)

Handles input for cycling environment maps.

Parameters

app	Pointer to the application state.
action	GLFW action (Press/Release).
mods	Modifiers.
key	Directional key.

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app_save_png_frame()

void app_save_png_frame	(	App *	app,
		const char *	filename
	)

Captures the current framebuffer and saves it as a PNG file.

Parameters

app	Pointer to the application state.
filename	Output file path (should end in .png).

app_toggle_fullscreen()

void app_toggle_fullscreen	(	App *	app,
		GLFWwindow *	window
	)

Toggles the application window between Windowed and Fullscreen.

Parameters

app	Pointer to the application state.
window	GLFW window handle.

framebuffer_size_callback()

void framebuffer_size_callback	(	GLFWwindow *	window,
		int	width,
		int	height
	)

Primary GLFW framebuffer size callback.

Handles resizing of the OpenGL viewport and all dependent post-processing buffers to match the new window dimensions.

Parameters

window	The GLFW window context.
width	New framebuffer width.
height	New framebuffer height.

Note

Reallocates many GPU textures via postprocess_resize.

handle_app_input()

void handle_app_input	(	App *	app,
		int	key,
		int	mods
	)

Dispatches application-level logic for key inputs.

Handles system-wide shortcuts (ESC to exit, Space to pause, etc.).

Parameters

app	Pointer to the application state.
key	Locked key code.
mods	Active modifiers.

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key_callback()

void key_callback	(	GLFWwindow *	window,
		int	key,
		int	scancode,
		int	action,
		int	mods
	)

Primary GLFW key callback.

Dispatches raw key events to handle_app_input, camera_process_key_callback, and other specific handlers.

Parameters

window	The GLFW window context.
key	The keyboard key code.
scancode	System-specific scancode.
action	GLFW_PRESS, GLFW_RELEASE, or GLFW_REPEAT.
mods	Active modifier keys (Shift, Ctrl, Alt).

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mouse_callback()

void mouse_callback	(	GLFWwindow *	window,
		double	xpos,
		double	ypos
	)

Primary GLFW mouse position callback.

Parameters

window	The GLFW window context.
xpos	Absolute mouse X-coordinate.
ypos	Absolute mouse Y-coordinate.

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scroll_callback()

void scroll_callback	(	GLFWwindow *	window,
		double	xoffset,
		double	yoffset
	)

Primary GLFW scroll callback.

Parameters

window	The GLFW window context.
xoffset	Scroll amount along the X-axis.
yoffset	Scroll amount along the Y-axis.

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