ref: 7c273d147f0805abbf5753cb32800de176e21884
dir: /src/settings.c/
#include "settings.h"
#include "SDL2_inprint.h"
#include "common.h"
#include <SDL3/SDL.h>
// Internal state
static int g_settings_open = 0;
static int g_selected_index = 0;
static int g_needs_redraw = 1;
static SDL_Texture *g_settings_texture = NULL;
typedef enum capture_mode_t {
CAPTURE_NONE,
CAPTURE_KEY,
CAPTURE_BUTTON,
CAPTURE_AXIS
} capture_mode_t;
static capture_mode_t g_capture_mode = CAPTURE_NONE;
static void *g_capture_target = NULL; // points to conf field
typedef enum item_type_t {
ITEM_HEADER,
ITEM_TOGGLE_BOOL,
ITEM_SAVE,
ITEM_CLOSE,
ITEM_SUBMENU,
ITEM_BIND_KEY,
ITEM_BIND_BUTTON,
ITEM_BIND_AXIS,
ITEM_INT_ADJ
} item_type_t;
typedef struct setting_item_s {
const char *label;
item_type_t type;
void *target;
int step;
int min_val;
int max_val;
} setting_item_s;
typedef enum settings_view_t { VIEW_ROOT, VIEW_KEYS, VIEW_GAMEPAD, VIEW_ANALOG } settings_view_t;
static settings_view_t g_view = VIEW_ROOT;
static void add_item(setting_item_s *items, int *count, const char *label, item_type_t type, void *target,
int step, int min_val, int max_val) {
items[*count] = (setting_item_s){label, type, target, step, min_val, max_val};
(*count)++;
}
static void build_menu(const config_params_s *conf, setting_item_s *items, int *count) {
*count = 0;
switch (g_view) {
case VIEW_ROOT:
add_item(items, count, "Graphics", ITEM_HEADER, NULL, 0, 0, 0);
add_item(items, count, "Integer scaling", ITEM_TOGGLE_BOOL, (void *)&conf->integer_scaling, 0, 0, 0);
add_item(items, count, "Fullscreen", ITEM_TOGGLE_BOOL, (void *)&conf->init_fullscreen, 0, 0, 0);
add_item(items, count, "Audio", ITEM_HEADER, NULL, 0, 0, 0);
add_item(items, count, "Audio enabled", ITEM_TOGGLE_BOOL, (void *)&conf->audio_enabled, 0, 0, 0);
add_item(items, count, "Bindings", ITEM_HEADER, NULL, 0, 0, 0);
add_item(items, count, "Keyboard bindings >", ITEM_SUBMENU, NULL, 0, 0, 0);
add_item(items, count, "Gamepad bindings >", ITEM_SUBMENU, NULL, 0, 0, 0);
add_item(items, count, "Analog settings >", ITEM_SUBMENU, NULL, 0, 0, 0);
add_item(items, count, "Save", ITEM_SAVE, NULL, 0, 0, 0);
add_item(items, count, "Close", ITEM_CLOSE, NULL, 0, 0, 0);
break;
case VIEW_KEYS:
add_item(items, count, "Keyboard bindings", ITEM_HEADER, NULL, 0, 0, 0);
add_item(items, count, "Up", ITEM_BIND_KEY, (void *)&conf->key_up, 0, 0, 0);
add_item(items, count, "Left", ITEM_BIND_KEY, (void *)&conf->key_left, 0, 0, 0);
add_item(items, count, "Down", ITEM_BIND_KEY, (void *)&conf->key_down, 0, 0, 0);
add_item(items, count, "Right", ITEM_BIND_KEY, (void *)&conf->key_right, 0, 0, 0);
add_item(items, count, "Select", ITEM_BIND_KEY, (void *)&conf->key_select, 0, 0, 0);
add_item(items, count, "Start", ITEM_BIND_KEY, (void *)&conf->key_start, 0, 0, 0);
add_item(items, count, "Opt", ITEM_BIND_KEY, (void *)&conf->key_opt, 0, 0, 0);
add_item(items, count, "Edit", ITEM_BIND_KEY, (void *)&conf->key_edit, 0, 0, 0);
add_item(items, count, "Delete", ITEM_BIND_KEY, (void *)&conf->key_delete, 0, 0, 0);
add_item(items, count, "Reset", ITEM_BIND_KEY, (void *)&conf->key_reset, 0, 0, 0);
add_item(items, count, "Toggle audio", ITEM_BIND_KEY, (void *)&conf->key_toggle_audio, 0, 0, 0);
add_item(items, count, "Toggle log", ITEM_BIND_KEY, (void *)&conf->key_toggle_log, 0, 0, 0);
add_item(items, count, "Back", ITEM_CLOSE, NULL, 0, 0, 0);
break;
case VIEW_GAMEPAD:
add_item(items, count, "Gamepad bindings", ITEM_HEADER, NULL, 0, 0, 0);
add_item(items, count, "Up", ITEM_BIND_BUTTON, (void *)&conf->gamepad_up, 0, 0, 0);
add_item(items, count, "Left", ITEM_BIND_BUTTON, (void *)&conf->gamepad_left, 0, 0, 0);
add_item(items, count, "Down", ITEM_BIND_BUTTON, (void *)&conf->gamepad_down, 0, 0, 0);
add_item(items, count, "Right", ITEM_BIND_BUTTON, (void *)&conf->gamepad_right, 0, 0, 0);
add_item(items, count, "Select", ITEM_BIND_BUTTON, (void *)&conf->gamepad_select, 0, 0, 0);
add_item(items, count, "Start", ITEM_BIND_BUTTON, (void *)&conf->gamepad_start, 0, 0, 0);
add_item(items, count, "Opt", ITEM_BIND_BUTTON, (void *)&conf->gamepad_opt, 0, 0, 0);
add_item(items, count, "Edit", ITEM_BIND_BUTTON, (void *)&conf->gamepad_edit, 0, 0, 0);
add_item(items, count, "Quit", ITEM_BIND_BUTTON, (void *)&conf->gamepad_quit, 0, 0, 0);
add_item(items, count, "Reset", ITEM_BIND_BUTTON, (void *)&conf->gamepad_reset, 0, 0, 0);
add_item(items, count, "Back", ITEM_CLOSE, NULL, 0, 0, 0);
break;
case VIEW_ANALOG:
add_item(items, count, "Analog settings", ITEM_HEADER, NULL, 0, 0, 0);
add_item(items, count, "Analog threshold", ITEM_INT_ADJ, (void *)&conf->gamepad_analog_threshold, 1000, 1000, 32767);
add_item(items, count, "Axis Up/Down", ITEM_BIND_AXIS, (void *)&conf->gamepad_analog_axis_updown, 0, 0, 0);
add_item(items, count, "Axis Left/Right", ITEM_BIND_AXIS, (void *)&conf->gamepad_analog_axis_leftright, 0, 0, 0);
add_item(items, count, "Axis Select", ITEM_BIND_AXIS, (void *)&conf->gamepad_analog_axis_select, 0, 0, 0);
add_item(items, count, "Axis Start", ITEM_BIND_AXIS, (void *)&conf->gamepad_analog_axis_start, 0, 0, 0);
add_item(items, count, "Axis Opt", ITEM_BIND_AXIS, (void *)&conf->gamepad_analog_axis_opt, 0, 0, 0);
add_item(items, count, "Axis Edit", ITEM_BIND_AXIS, (void *)&conf->gamepad_analog_axis_edit, 0, 0, 0);
add_item(items, count, "Back", ITEM_CLOSE, NULL, 0, 0, 0);
break;
}
}
static void settings_destroy_texture(SDL_Renderer *rend) {
(void)rend;
if (g_settings_texture != NULL) {
SDL_DestroyTexture(g_settings_texture);
g_settings_texture = NULL;
}
}
void settings_toggle_open(void) {
g_settings_open = !g_settings_open;
g_selected_index = 1; // first actionable item
g_capture_mode = CAPTURE_NONE;
g_capture_target = NULL;
g_needs_redraw = 1;
}
bool settings_is_open(void) { return g_settings_open != 0; }
static void settings_move(int delta) {
if (!g_settings_open)
return;
// We will clamp after building the menu in render
g_selected_index += delta;
if (g_selected_index < 1)
g_selected_index = 1;
g_needs_redraw = 1;
}
static void settings_activate(struct app_context *ctx, const setting_item_s *items, int count) {
if (g_selected_index < 1 || g_selected_index >= count)
return;
const setting_item_s *it = &items[g_selected_index];
config_params_s *conf = &ctx->conf;
switch (it->type) {
case ITEM_TOGGLE_BOOL: {
unsigned int *val = (unsigned int *)it->target;
*val = *val ? 0 : 1;
if (it->target == &conf->init_fullscreen) {
extern void toggle_fullscreen(void);
toggle_fullscreen();
}
g_needs_redraw = 1;
break;
}
case ITEM_SAVE: {
extern void write_config(const config_params_s *conf);
write_config(conf);
g_needs_redraw = 1;
break;
}
case ITEM_CLOSE:
settings_toggle_open();
break;
case ITEM_BIND_KEY:
g_capture_mode = CAPTURE_KEY;
g_capture_target = it->target;
g_needs_redraw = 1;
break;
case ITEM_BIND_BUTTON:
g_capture_mode = CAPTURE_BUTTON;
g_capture_target = it->target;
g_needs_redraw = 1;
break;
case ITEM_BIND_AXIS:
g_capture_mode = CAPTURE_AXIS;
g_capture_target = it->target;
g_needs_redraw = 1;
break;
case ITEM_INT_ADJ:
case ITEM_HEADER:
break;
}
}
void settings_handle_event(struct app_context *ctx, const SDL_Event *e) {
if (!g_settings_open)
return;
if (e->type == SDL_EVENT_KEY_DOWN) {
if (e->key.key == SDLK_ESCAPE || e->key.key == SDLK_F1) {
if (g_capture_mode != CAPTURE_NONE) {
g_capture_mode = CAPTURE_NONE;
g_capture_target = NULL;
g_needs_redraw = 1;
return;
}
if (g_view != VIEW_ROOT) {
g_view = VIEW_ROOT;
g_selected_index = 1;
g_needs_redraw = 1;
return;
}
settings_toggle_open();
return;
}
// Capture key remap
if (g_capture_mode == CAPTURE_KEY) {
if (g_capture_target != NULL) {
unsigned int *dst = (unsigned int *)g_capture_target;
*dst = e->key.scancode;
}
g_capture_mode = CAPTURE_NONE;
g_capture_target = NULL;
g_needs_redraw = 1;
return;
}
if (e->key.key == SDLK_UP) {
settings_move(-1);
return;
}
if (e->key.key == SDLK_DOWN) {
settings_move(1);
return;
}
if (e->key.key == SDLK_LEFT || e->key.key == SDLK_RIGHT) {
setting_item_s items[64];
int count = 0;
build_menu(&ctx->conf, items, &count);
if (g_selected_index > 0 && g_selected_index < count) {
setting_item_s *it = &items[g_selected_index];
if (it->type == ITEM_INT_ADJ && it->target != NULL) {
int *val = (int *)it->target;
int delta = (e->key.key == SDLK_LEFT ? -it->step : it->step);
int newv = *val + delta;
if (newv < it->min_val) newv = it->min_val;
if (newv > it->max_val) newv = it->max_val;
*val = newv;
g_needs_redraw = 1;
return;
}
}
}
if (e->key.key == SDLK_RETURN || e->key.key == SDLK_SPACE) {
setting_item_s items[64];
int count = 0;
build_menu(&ctx->conf, items, &count);
// Handle entering submenus from root based on item type
if (g_view == VIEW_ROOT) {
const setting_item_s *it = &items[g_selected_index];
if (it->type == ITEM_SUBMENU && it->label && SDL_strstr(it->label, "Keyboard bindings") == it->label) {
g_view = VIEW_KEYS;
g_selected_index = 1;
g_needs_redraw = 1;
return;
}
if (it->type == ITEM_SUBMENU && it->label && SDL_strstr(it->label, "Gamepad bindings") == it->label) {
g_view = VIEW_GAMEPAD;
g_selected_index = 1;
g_needs_redraw = 1;
return;
}
if (it->type == ITEM_SUBMENU && it->label && SDL_strstr(it->label, "Analog settings") == it->label) {
g_view = VIEW_ANALOG;
g_selected_index = 1;
g_needs_redraw = 1;
return;
}
}
// Back item in submenus
if (g_view != VIEW_ROOT) {
const setting_item_s *it = &items[g_selected_index];
if (it->type == ITEM_CLOSE && it->label && SDL_strcmp(it->label, "Back") == 0) {
g_view = VIEW_ROOT;
g_selected_index = 1;
g_needs_redraw = 1;
return;
}
}
settings_activate(ctx, items, count);
return;
}
}
// Capture gamepad button
if (g_capture_mode == CAPTURE_BUTTON && e->type == SDL_EVENT_GAMEPAD_BUTTON_DOWN) {
if (g_capture_target != NULL) {
int *dst = (int *)g_capture_target;
*dst = e->gbutton.button;
}
g_capture_mode = CAPTURE_NONE;
g_capture_target = NULL;
g_needs_redraw = 1;
return;
}
// Capture axis on significant motion
if (g_capture_mode == CAPTURE_AXIS && e->type == SDL_EVENT_GAMEPAD_AXIS_MOTION) {
if (SDL_abs(e->gaxis.value) > 16000) {
if (g_capture_target != NULL) {
int *dst = (int *)g_capture_target;
*dst = e->gaxis.axis;
}
g_capture_mode = CAPTURE_NONE;
g_capture_target = NULL;
g_needs_redraw = 1;
return;
}
}
}
void settings_render_overlay(SDL_Renderer *rend, const config_params_s *conf, int texture_w,
int texture_h) {
if (!g_settings_open)
return;
if (g_settings_texture == NULL) {
g_settings_texture = SDL_CreateTexture(rend, SDL_PIXELFORMAT_ARGB8888,
SDL_TEXTUREACCESS_TARGET, texture_w, texture_h);
if (g_settings_texture == NULL) {
return;
}
SDL_SetTextureBlendMode(g_settings_texture, SDL_BLENDMODE_BLEND);
SDL_SetTextureScaleMode(g_settings_texture, SDL_SCALEMODE_NEAREST);
g_needs_redraw = 1;
}
if (!g_needs_redraw)
goto composite;
g_needs_redraw = 0;
SDL_Texture *prev = SDL_GetRenderTarget(rend);
SDL_SetRenderTarget(rend, g_settings_texture);
// Background
SDL_SetRenderDrawColor(rend, 0, 0, 0, 200);
SDL_RenderClear(rend);
// Title and items
const Uint32 fg = 0xFFFFFF;
const Uint32 bg = 0x000000;
int x = 8;
int y = 8;
inprint(rend, "Settings", x, y, 0xFFFF00, bg);
y += 14;
setting_item_s items[64];
int count = 0;
build_menu(conf, items, &count);
if (g_selected_index >= count) g_selected_index = count - 1;
if (g_capture_mode == CAPTURE_KEY) {
inprint(rend, "Press a key... (Esc to cancel)", x, y, 0x00FFFF, bg);
y += 12;
} else if (g_capture_mode == CAPTURE_BUTTON) {
inprint(rend, "Press a gamepad button...", x, y, 0x00FFFF, bg);
y += 12;
} else if (g_capture_mode == CAPTURE_AXIS) {
inprint(rend, "Move a gamepad axis...", x, y, 0x00FFFF, bg);
y += 12;
}
for (int i = 0; i < count; i++) {
const int selected = (i == g_selected_index);
const setting_item_s *it = &items[i];
if (it->type == ITEM_HEADER) {
inprint(rend, it->label, x, y, 0xAAAAFF, bg);
y += 12;
continue;
}
if (it->type == ITEM_TOGGLE_BOOL) {
const unsigned int *val = (const unsigned int *)it->target;
char line[160];
SDL_snprintf(line, sizeof line, "%s [%s]", it->label, (*val ? "On" : "Off"));
inprint(rend, line, x + (selected ? 0 : 2), y, selected ? 0x00FF00 : fg, bg);
y += 12;
continue;
}
if (it->type == ITEM_BIND_KEY || it->type == ITEM_BIND_BUTTON || it->type == ITEM_BIND_AXIS) {
int v = *(int *)it->target;
char line[160];
SDL_snprintf(line, sizeof line, "%s: %d", it->label, v);
inprint(rend, line, x + (selected ? 0 : 2), y, selected ? 0x00FF00 : fg, bg);
y += 12;
continue;
}
if (it->type == ITEM_INT_ADJ) {
char line[160];
SDL_snprintf(line, sizeof line, "%s: %d (Left/Right)", it->label, *(int *)it->target);
inprint(rend, line, x + (selected ? 0 : 2), y, selected ? 0x00FF00 : fg, bg);
y += 12;
continue;
}
if (it->type == ITEM_SAVE || it->type == ITEM_CLOSE) {
char line[160];
SDL_snprintf(line, sizeof line, "%s", it->label);
inprint(rend, line, x + (selected ? 0 : 2), y, selected ? 0x00FF00 : fg, bg);
y += 12;
continue;
}
}
SDL_SetRenderTarget(rend, prev);
composite:
SDL_RenderTexture(rend, g_settings_texture, NULL, NULL);
}
// Handle renderer/size resets: drop the cached texture to recreate at new size on next frame
void settings_on_texture_size_change(SDL_Renderer *rend) { settings_destroy_texture(rend); g_needs_redraw = 1; }