#include "app_ui.h"
#include "adaptive_sampler.h"
#include "app.h"
#include "app_binding.h"
#include "app_input_state.h"
#include "app_profiling.h"
#include "app_settings.h"
#include "app_ui_layout.h"
#include "bool_utils.h"
#include "effects/fx_bloom.h"
#include "env_manager.h"
#include "gamepad_input.h"
#include "glad/glad.h"
#include "ibl_coordinator.h"
#include "nbody.h"
#include "nbody_types.h"
#include "postprocess_internal.h"
#include "postprocess_readback.h"
#include "postprocess_setters.h"
#include "pp_params.h"
#include "scene.h"
#include "scene_simulation.h"
#include "texture.h"
#include "ui.h"
#include "utils.h"
#include <GLFW/glfw3.h>
#include <cglm/types.h>
#include <cglm/util.h>
#include <cglm/vec3.h>
#include <math.h>
#include <stdbool.h>
#include <string.h>

Include dependency graph for app_ui.c:

Functions
static void	draw_exposure_overlay (const App app, UILayout layout)

static void	draw_nbody_overlay (const App app, UILayout layout)

static void	draw_loading_indicator (const App *app)

static void	draw_help_overlay_keys (const App app, float start_x, float start_y, float total_h, const KeyboardLayoutConfig scaled_cfg)

static void	draw_key_layer_base (UIContext ui_ctx, const AppUIOverlay overlay, const KeyboardLayoutConfig scaled_cfg, const KeyPos pos, float pos_x, float pos_y, const vec3 base_col, bool has_binding, bool is_pressed, bool is_hovered, float global_dim_mult, int screen_width, int screen_height)

static void	draw_key_layer_effects (UIContext ui_ctx, const AppUIOverlay overlay, const KeyboardLayoutConfig scaled_cfg, const KeyPos pos, float pos_x, float pos_y, const vec3 base_col, bool is_pressed, bool is_hovered, int screen_width, int screen_height)

static void	draw_key_layer_label (UIContext ui_ctx, const KeyboardLayoutConfig scaled_cfg, const KeyPos *pos, float pos_x, float pos_y, int screen_width, int screen_height)

static void	draw_text_centered (UIContext ui_ctx, const char text, float pos_x, float pos_y, float scale, int screen_width, int screen_height)

static const AppBinding *	get_active_binding (const AppBindingRegistry registry, int key, int mods, int out_effective_mods)

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 screen_width, int screen_height)

static void	get_key_base_color (const AppBindingRegistry registry, int key, vec3 out_col, bool out_has_binding)

static bool	is_modifier_relevant (int key, int pressed_key, int pressed_mods)

void	app_draw_help_overlay (const App *app)
	Draws the help overlay with keyboard shortcuts.

static void	draw_gamepad_control (const App app, const GamepadControlPos ctrl, float origin_x, float origin_y, float unit_size, float unit_pad, float ui_scale, int hovered_idx, int ctrl_idx, bool is_pressed, float dim_mult)

static bool	gp_axis_active (const float axes, int axis_id, const GamepadState pad)
	Test whether a raw GLFW axis value exceeds its activation threshold.

static void	gp_overlay_poll_active (const App *app, bool active[GAMEPAD_LAYOUT_COUNT])
	Poll live gamepad state and mark active controls.

static int	gp_overlay_find_hovered (float origin_x, float origin_y, float unit_size, float unit_pad, float step)
	Find the hovered gamepad control via mouse hit-test.

void	app_draw_gamepad_help_overlay (const App *app)
	Draws the gamepad help overlay with controller bindings.

static bool	is_key_active_in_overlay (int key_to_test, int active_key, int active_mods)

static void	draw_exposure_debug_text (const App *app)

static void	draw_luminance_histogram_graph (const App app, const int buckets, int size, float min_lum, float max_lum)

static void	draw_bloom_debug_status (const App app, UILayout layout)

void	app_draw_debug_overlay (const App *app)
	Draws the debug overlay with performance metrics and settings.

static void	draw_main_info_overlay (const App app, UILayout layout)

static void	draw_cinematic_overlay (const App app, UILayout layout)

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.

Variables
static const float	GP_LAYOUT_COLS = 12.0F

static const float	GP_LAYOUT_ROWS = 7.0F

static const float	GP_GLOW_BASE_SIZE = 12.0F

static const float	GP_GLOW_SIDES = 2.0F

static const float	GP_SMALL_LABEL_SCALE = 0.7F

static const float	GP_TRIGGER_NORM = 0.5F

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	screen_width,
		int	screen_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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◆ draw_bloom_debug_status()

static void draw_bloom_debug_status	(	const App *	app,
		UILayout *	layout
	)

static

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◆ draw_cinematic_overlay()

static void draw_cinematic_overlay	(	const App *	app,
		UILayout *	layout
	)

static

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◆ draw_exposure_debug_text()

static void draw_exposure_debug_text ( const App * app )

static

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◆ draw_exposure_overlay()

static void draw_exposure_overlay	(	const App *	app,
		UILayout *	layout
	)

static

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◆ draw_gamepad_control()

static void draw_gamepad_control	(	const App *	app,
		const GamepadControlPos *	ctrl,
		float	origin_x,
		float	origin_y,
		float	unit_size,
		float	unit_pad,
		float	ui_scale,
		int	hovered_idx,
		int	ctrl_idx,
		bool	is_pressed,
		float	dim_mult
	)

static

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◆ draw_help_overlay_keys()

static void draw_help_overlay_keys	(	const App *	app,
		float	start_x,
		float	start_y,
		float	total_h,
		const KeyboardLayoutConfig *	scaled_cfg
	)

static

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◆ draw_key_layer_base()

static void draw_key_layer_base	(	UIContext *	ui_ctx,
		const AppUIOverlay *	overlay,
		const KeyboardLayoutConfig *	scaled_cfg,
		const KeyPos *	pos,
		float	pos_x,
		float	pos_y,
		const vec3	base_col,
		bool	has_binding,
		bool	is_pressed,
		bool	is_hovered,
		float	global_dim_mult,
		int	screen_width,
		int	screen_height
	)

static

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◆ draw_key_layer_effects()

static void draw_key_layer_effects	(	UIContext *	ui_ctx,
		const AppUIOverlay *	overlay,
		const KeyboardLayoutConfig *	scaled_cfg,
		const KeyPos *	pos,
		float	pos_x,
		float	pos_y,
		const vec3	base_col,
		bool	is_pressed,
		bool	is_hovered,
		int	screen_width,
		int	screen_height
	)

static

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◆ draw_key_layer_label()

static void draw_key_layer_label	(	UIContext *	ui_ctx,
		const KeyboardLayoutConfig *	scaled_cfg,
		const KeyPos *	pos,
		float	pos_x,
		float	pos_y,
		int	screen_width,
		int	screen_height
	)

static

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◆ draw_loading_indicator()

static void draw_loading_indicator ( const App * app )

static

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◆ draw_luminance_histogram_graph()

static void draw_luminance_histogram_graph	(	const App *	app,
		const int *	buckets,
		int	size,
		float	min_lum,
		float	max_lum
	)

static

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◆ draw_main_info_overlay()

static void draw_main_info_overlay	(	const App *	app,
		UILayout *	layout
	)

static

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◆ draw_nbody_overlay()

static void draw_nbody_overlay	(	const App *	app,
		UILayout *	layout
	)

static

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◆ draw_text_centered()

static void draw_text_centered	(	UIContext *	ui_ctx,
		const char *	text,
		float	pos_x,
		float	pos_y,
		float	scale,
		int	screen_width,
		int	screen_height
	)

static

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◆ get_active_binding()

static const AppBinding * get_active_binding	(	const AppBindingRegistry *	registry,
		int	key,
		int	mods,
		int *	out_effective_mods
	)

static

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◆ get_key_base_color()

static void get_key_base_color	(	const AppBindingRegistry *	registry,
		int	key,
		vec3	out_col,
		bool *	out_has_binding
	)

static

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◆ gp_axis_active()

static bool gp_axis_active	(	const float *	axes,
		int	axis_id,
		const GamepadState *	pad
	)

static

Test whether a raw GLFW axis value exceeds its activation threshold.

Triggers (axes 4-5) rest at -1.0 and range to +1.0, so they are normalised to [0,1] before comparing against the trigger threshold. Stick axes (0-3) are centred at 0.0 and compared via fabsf against the deadzone.

◆ gp_overlay_find_hovered()

static int gp_overlay_find_hovered	(	float	origin_x,
		float	origin_y,
		float	unit_size,
		float	unit_pad,
		float	step
	)

static

Find the hovered gamepad control via mouse hit-test.

◆ gp_overlay_poll_active()

static void gp_overlay_poll_active	(	const App *	app,
		bool	active[GAMEPAD_LAYOUT_COUNT]
	)

static

Poll live gamepad state and mark active controls.

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◆ is_key_active_in_overlay()

static bool is_key_active_in_overlay	(	int	key_to_test,
		int	active_key,
		int	active_mods
	)

static

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◆ is_modifier_relevant()

static bool is_modifier_relevant	(	int	key,
		int	pressed_key,
		int	pressed_mods
	)

static

Variable Documentation

◆ GP_GLOW_BASE_SIZE

const float GP_GLOW_BASE_SIZE = 12.0F

static

◆ GP_GLOW_SIDES

const float GP_GLOW_SIDES = 2.0F

static

◆ GP_LAYOUT_COLS

const float GP_LAYOUT_COLS = 12.0F

static

Gamepad layout spans 12 units wide × 7 units tall.

◆ GP_LAYOUT_ROWS

const float GP_LAYOUT_ROWS = 7.0F

static

◆ GP_SMALL_LABEL_SCALE

const float GP_SMALL_LABEL_SCALE = 0.7F

static

◆ GP_TRIGGER_NORM

const float GP_TRIGGER_NORM = 0.5F

static

Functions

Variables

Function Documentation

◆ app_draw_debug_overlay()

◆ app_draw_gamepad_help_overlay()

◆ app_draw_help_overlay()

◆ app_render_ui()

◆ app_ui_cleanup()

◆ app_ui_handle_mouse()

◆ app_ui_init()

◆ app_ui_update()

◆ compute_luminance_histogram()

◆ draw_bloom_debug_status()

◆ draw_cinematic_overlay()

◆ draw_exposure_debug_text()

◆ draw_exposure_overlay()

◆ draw_gamepad_control()

◆ draw_help_overlay_keys()

◆ draw_key_layer_base()

◆ draw_key_layer_effects()

◆ draw_key_layer_label()

◆ draw_loading_indicator()

◆ draw_luminance_histogram_graph()

◆ draw_main_info_overlay()

◆ draw_nbody_overlay()

◆ draw_text_centered()

◆ get_active_binding()

◆ get_key_base_color()

◆ gp_axis_active()

◆ gp_overlay_find_hovered()

◆ gp_overlay_poll_active()

◆ is_key_active_in_overlay()

◆ is_modifier_relevant()

Variable Documentation

◆ GP_GLOW_BASE_SIZE

◆ GP_GLOW_SIDES

◆ GP_LAYOUT_COLS

◆ GP_LAYOUT_ROWS

◆ GP_SMALL_LABEL_SCALE

◆ GP_TRIGGER_NORM