app_ui.h File Reference

UI rendering module for the application. More...

#include "glad/glad.h"
#include "ui.h"
#include <stdbool.h>

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Data Structures
struct	KeyboardLayoutConfig
struct	AppUIOverlay

Enumerations
enum	{ HISTO_BUCKETS = 256 }
enum	HelpMode { HELP_MODE_OFF = 0 , HELP_MODE_KEYBOARD , HELP_MODE_GAMEPAD , HELP_MODE_COUNT }
	States for the F2 help overlay cycling. More...

Functions
void	app_draw_help_overlay (const App *app)
	Draws the help overlay with keyboard shortcuts.
void	app_draw_gamepad_help_overlay (const App *app)
	Draws the gamepad help overlay with controller bindings.
void	app_draw_debug_overlay (const App *app)
	Draws the debug overlay with performance metrics and settings.
void	app_render_ui (const App *app)
	Main UI rendering entry point.
int	compute_luminance_histogram (const App *app, int *buckets, int size, float *min_lum, float *max_lum)
	Computes the luminance histogram from current frame data.
void	app_ui_init (AppUIOverlay *overlay)
void	app_ui_cleanup (AppUIOverlay *overlay)
void	app_ui_update (AppUIOverlay *overlay, double delta_time)
void	app_ui_handle_mouse (AppUIOverlay *overlay, double xpos, double ypos, int width, int height)

Variables
static const float	HELP_PRESS_DURATION = 2.0F

Detailed Description

UI rendering module for the application.

This module handles all UI-related drawing operations, including help overlays, debug information, and luminance statistics.

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
HISTO_BUCKETS

HelpMode

enum HelpMode

States for the F2 help overlay cycling.

Enumerator
HELP_MODE_OFF
HELP_MODE_KEYBOARD
HELP_MODE_GAMEPAD
HELP_MODE_COUNT

Function Documentation

app_draw_debug_overlay()

void app_draw_debug_overlay

(

const App *

app

)

Draws the debug overlay with performance metrics and settings.

Parameters

app	Pointer to the application state.

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app_draw_gamepad_help_overlay()

void app_draw_gamepad_help_overlay

(

const App *

app

)

Draws the gamepad help overlay with controller bindings.

Parameters

app	Pointer to the application state.

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app_draw_help_overlay()

void app_draw_help_overlay

(

const App *

app

)

Draws the help overlay with keyboard shortcuts.

Parameters

app	Pointer to the application state.

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app_render_ui()

void app_render_ui

(

const App *

app

)

Main UI rendering entry point.

Orchestrates all UI elements (overlays, histograms, loading spinners).

Parameters

app	Pointer to the application state.

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app_ui_cleanup()

void app_ui_cleanup

(

AppUIOverlay *

overlay

)

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app_ui_handle_mouse()

void app_ui_handle_mouse	(	AppUIOverlay *	overlay,
		double	xpos,
		double	ypos,
		int	width,
		int	height
	)

app_ui_init()

void app_ui_init

(

AppUIOverlay *

overlay

)

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app_ui_update()

void app_ui_update	(	AppUIOverlay *	overlay,
		double	delta_time
	)

compute_luminance_histogram()

int compute_luminance_histogram	(	const App *	app,
		int *	buckets,
		int	size,
		float *	min_lum,
		float *	max_lum
	)

Computes the luminance histogram from current frame data.

Scans the luminance buffer to populate buckets for visualization.

Parameters

	app	Pointer to the application state.
	buckets	Array to fill with histogram data.
	size	Number of buckets in the array.
[out]	min_lum	Minimum luminance found in the data.
[out]	max_lum	Maximum luminance found in the data.

Returns

Number of samples processed or error code.

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Variable Documentation

HELP_PRESS_DURATION

const float HELP_PRESS_DURATION = 2.0F

static