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-rw-r--r--platform/javascript/display_server_javascript.cpp80
-rw-r--r--platform/javascript/display_server_javascript.h2
-rw-r--r--platform/javascript/godot_js.h6
-rw-r--r--platform/javascript/js/libs/library_godot_display.js172
4 files changed, 213 insertions, 47 deletions
diff --git a/platform/javascript/display_server_javascript.cpp b/platform/javascript/display_server_javascript.cpp
index f10627b0b6..915e8eeacf 100644
--- a/platform/javascript/display_server_javascript.cpp
+++ b/platform/javascript/display_server_javascript.cpp
@@ -558,57 +558,51 @@ bool DisplayServerJavaScript::screen_is_touchscreen(int p_screen) const {
}
// Gamepad
-
-EM_BOOL DisplayServerJavaScript::gamepad_change_callback(int p_event_type, const EmscriptenGamepadEvent *p_event, void *p_user_data) {
+void DisplayServerJavaScript::gamepad_callback(int p_index, int p_connected, const char *p_id, const char *p_guid) {
Input *input = Input::get_singleton();
- if (p_event_type == EMSCRIPTEN_EVENT_GAMEPADCONNECTED) {
- String guid = "";
- if (String::utf8(p_event->mapping) == "standard")
- guid = "Default HTML5 Gamepad";
- input->joy_connection_changed(p_event->index, true, String::utf8(p_event->id), guid);
+ if (p_connected) {
+ input->joy_connection_changed(p_index, true, String::utf8(p_id), String::utf8(p_guid));
} else {
- input->joy_connection_changed(p_event->index, false, "");
+ input->joy_connection_changed(p_index, false, "");
}
- return true;
}
void DisplayServerJavaScript::process_joypads() {
- int joypad_count = emscripten_get_num_gamepads();
Input *input = Input::get_singleton();
- for (int joypad = 0; joypad < joypad_count; joypad++) {
- EmscriptenGamepadEvent state;
- EMSCRIPTEN_RESULT query_result = emscripten_get_gamepad_status(joypad, &state);
- // Chromium reserves gamepads slots, so NO_DATA is an expected result.
- ERR_CONTINUE(query_result != EMSCRIPTEN_RESULT_SUCCESS &&
- query_result != EMSCRIPTEN_RESULT_NO_DATA);
- if (query_result == EMSCRIPTEN_RESULT_SUCCESS && state.connected) {
- int button_count = MIN(state.numButtons, 18);
- int axis_count = MIN(state.numAxes, 8);
- for (int button = 0; button < button_count; button++) {
- float value = state.analogButton[button];
- input->joy_button(joypad, button, value);
- }
- for (int axis = 0; axis < axis_count; axis++) {
+ int32_t pads = godot_js_display_gamepad_sample_count();
+ int32_t s_btns_num = 0;
+ int32_t s_axes_num = 0;
+ int32_t s_standard = 0;
+ float s_btns[16];
+ float s_axes[10];
+ for (int idx = 0; idx < pads; idx++) {
+ int err = godot_js_display_gamepad_sample_get(idx, s_btns, &s_btns_num, s_axes, &s_axes_num, &s_standard);
+ if (err) {
+ continue;
+ }
+ for (int b = 0; b < s_btns_num; b++) {
+ float value = s_btns[b];
+ // Buttons 6 and 7 in the standard mapping need to be
+ // axis to be handled as JOY_AXIS_TRIGGER by Godot.
+ if (s_standard && (b == 6 || b == 7)) {
Input::JoyAxis joy_axis;
- joy_axis.min = -1;
- joy_axis.value = state.axis[axis];
- input->joy_axis(joypad, axis, joy_axis);
+ joy_axis.min = 0;
+ joy_axis.value = value;
+ int a = b == 6 ? JOY_AXIS_TRIGGER_LEFT : JOY_AXIS_TRIGGER_RIGHT;
+ input->joy_axis(idx, a, joy_axis);
+ } else {
+ input->joy_button(idx, b, value);
}
}
+ for (int a = 0; a < s_axes_num; a++) {
+ Input::JoyAxis joy_axis;
+ joy_axis.min = -1;
+ joy_axis.value = s_axes[a];
+ input->joy_axis(idx, a, joy_axis);
+ }
}
}
-#if 0
-bool DisplayServerJavaScript::is_joy_known(int p_device) {
- return Input::get_singleton()->is_joy_mapped(p_device);
-}
-
-
-String DisplayServerJavaScript::get_joy_guid(int p_device) const {
- return Input::get_singleton()->get_joy_guid_remapped(p_device);
-}
-#endif
-
Vector<String> DisplayServerJavaScript::get_rendering_drivers_func() {
Vector<String> drivers;
drivers.push_back("dummy");
@@ -766,9 +760,6 @@ DisplayServerJavaScript::DisplayServerJavaScript(const String &p_rendering_drive
#define SET_EM_WINDOW_CALLBACK(ev, cb) \
result = emscripten_set_##ev##_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, NULL, false, &cb); \
EM_CHECK(ev)
-#define SET_EM_CALLBACK_NOTARGET(ev, cb) \
- result = emscripten_set_##ev##_callback(nullptr, true, &cb); \
- EM_CHECK(ev)
// These callbacks from Emscripten's html5.h suffice to access most
// JavaScript APIs.
SET_EM_CALLBACK(canvas_id, mousedown, mouse_button_callback)
@@ -783,9 +774,6 @@ DisplayServerJavaScript::DisplayServerJavaScript(const String &p_rendering_drive
SET_EM_CALLBACK(canvas_id, keypress, keypress_callback)
SET_EM_CALLBACK(canvas_id, keyup, keyup_callback)
SET_EM_CALLBACK(EMSCRIPTEN_EVENT_TARGET_DOCUMENT, fullscreenchange, fullscreen_change_callback)
- SET_EM_CALLBACK_NOTARGET(gamepadconnected, gamepad_change_callback)
- SET_EM_CALLBACK_NOTARGET(gamepaddisconnected, gamepad_change_callback)
-#undef SET_EM_CALLBACK_NOTARGET
#undef SET_EM_CALLBACK
#undef EM_CHECK
@@ -798,6 +786,7 @@ DisplayServerJavaScript::DisplayServerJavaScript(const String &p_rendering_drive
WINDOW_EVENT_FOCUS_OUT);
godot_js_display_paste_cb(update_clipboard_callback);
godot_js_display_drop_files_cb(drop_files_js_callback);
+ godot_js_display_gamepad_cb(&DisplayServerJavaScript::gamepad_callback);
Input::get_singleton()->set_event_dispatch_function(_dispatch_input_event);
}
@@ -1026,8 +1015,9 @@ bool DisplayServerJavaScript::can_any_window_draw() const {
}
void DisplayServerJavaScript::process_events() {
- if (emscripten_sample_gamepad_data() == EMSCRIPTEN_RESULT_SUCCESS)
+ if (godot_js_display_gamepad_sample() == OK) {
process_joypads();
+ }
}
int DisplayServerJavaScript::get_current_video_driver() const {
diff --git a/platform/javascript/display_server_javascript.h b/platform/javascript/display_server_javascript.h
index 916be1ae45..e28fbc56f3 100644
--- a/platform/javascript/display_server_javascript.h
+++ b/platform/javascript/display_server_javascript.h
@@ -86,7 +86,7 @@ private:
static EM_BOOL touch_press_callback(int p_event_type, const EmscriptenTouchEvent *p_event, void *p_user_data);
static EM_BOOL touchmove_callback(int p_event_type, const EmscriptenTouchEvent *p_event, void *p_user_data);
- static EM_BOOL gamepad_change_callback(int p_event_type, const EmscriptenGamepadEvent *p_event, void *p_user_data);
+ static void gamepad_callback(int p_index, int p_connected, const char *p_id, const char *p_guid);
void process_joypads();
static Vector<String> get_rendering_drivers_func();
diff --git a/platform/javascript/godot_js.h b/platform/javascript/godot_js.h
index 5b98253b08..0006848756 100644
--- a/platform/javascript/godot_js.h
+++ b/platform/javascript/godot_js.h
@@ -76,6 +76,12 @@ extern int godot_js_display_cursor_is_hidden();
extern void godot_js_display_cursor_set_custom_shape(const char *p_shape, const uint8_t *p_ptr, int p_len, int p_hotspot_x, int p_hotspot_y);
extern void godot_js_display_cursor_set_visible(int p_visible);
+// Display gamepad
+extern char *godot_js_display_gamepad_cb(void (*p_on_change)(int p_index, int p_connected, const char *p_id, const char *p_guid));
+extern int godot_js_display_gamepad_sample();
+extern int godot_js_display_gamepad_sample_count();
+extern int godot_js_display_gamepad_sample_get(int p_idx, float r_btns[16], int32_t *r_btns_num, float r_axes[10], int32_t *r_axes_num, int32_t *r_standard);
+
// Display listeners
extern void godot_js_display_notification_cb(void (*p_callback)(int p_notification), int p_enter, int p_exit, int p_in, int p_out);
extern void godot_js_display_paste_cb(void (*p_callback)(const char *p_text));
diff --git a/platform/javascript/js/libs/library_godot_display.js b/platform/javascript/js/libs/library_godot_display.js
index d1f4d9595b..2977b7c122 100644
--- a/platform/javascript/js/libs/library_godot_display.js
+++ b/platform/javascript/js/libs/library_godot_display.js
@@ -269,13 +269,140 @@ const GodotDisplayCursor = {
};
mergeInto(LibraryManager.library, GodotDisplayCursor);
+/*
+ * Display Gamepad API helper.
+ */
+const GodotDisplayGamepads = {
+ $GodotDisplayGamepads__deps: ['$GodotRuntime', '$GodotDisplayListeners'],
+ $GodotDisplayGamepads: {
+ samples: [],
+
+ get_pads: function () {
+ try {
+ // Will throw in iframe when permission is denied.
+ // Will throw/warn in the future for insecure contexts.
+ // See https://github.com/w3c/gamepad/pull/120
+ const pads = navigator.getGamepads();
+ if (pads) {
+ return pads;
+ }
+ return [];
+ } catch (e) {
+ return [];
+ }
+ },
+
+ get_samples: function () {
+ return GodotDisplayGamepads.samples;
+ },
+
+ get_sample: function (index) {
+ const samples = GodotDisplayGamepads.samples;
+ return index < samples.length ? samples[index] : null;
+ },
+
+ sample: function () {
+ const pads = GodotDisplayGamepads.get_pads();
+ const samples = [];
+ for (let i = 0; i < pads.length; i++) {
+ const pad = pads[i];
+ if (!pad) {
+ samples.push(null);
+ continue;
+ }
+ const s = {
+ standard: pad.mapping === 'standard',
+ buttons: [],
+ axes: [],
+ connected: pad.connected,
+ };
+ for (let b = 0; b < pad.buttons.length; b++) {
+ s.buttons.push(pad.buttons[b].value);
+ }
+ for (let a = 0; a < pad.axes.length; a++) {
+ s.axes.push(pad.axes[a]);
+ }
+ samples.push(s);
+ }
+ GodotDisplayGamepads.samples = samples;
+ },
+
+ init: function (onchange) {
+ GodotDisplayListeners.samples = [];
+ function add(pad) {
+ const guid = GodotDisplayGamepads.get_guid(pad);
+ const c_id = GodotRuntime.allocString(pad.id);
+ const c_guid = GodotRuntime.allocString(guid);
+ onchange(pad.index, 1, c_id, c_guid);
+ GodotRuntime.free(c_id);
+ GodotRuntime.free(c_guid);
+ }
+ const pads = GodotDisplayGamepads.get_pads();
+ for (let i = 0; i < pads.length; i++) {
+ // Might be reserved space.
+ if (pads[i]) {
+ add(pads[i]);
+ }
+ }
+ GodotDisplayListeners.add(window, 'gamepadconnected', function (evt) {
+ add(evt.gamepad);
+ }, false);
+ GodotDisplayListeners.add(window, 'gamepaddisconnected', function (evt) {
+ onchange(evt.gamepad.index, 0);
+ }, false);
+ },
+
+ get_guid: function (pad) {
+ if (pad.mapping) {
+ return pad.mapping;
+ }
+ const ua = navigator.userAgent;
+ let os = 'Unknown';
+ if (ua.indexOf('Android') >= 0) {
+ os = 'Android';
+ } else if (ua.indexOf('Linux') >= 0) {
+ os = 'Linux';
+ } else if (ua.indexOf('iPhone') >= 0) {
+ os = 'iOS';
+ } else if (ua.indexOf('Macintosh') >= 0) {
+ // Updated iPads will fall into this category.
+ os = 'MacOSX';
+ } else if (ua.indexOf('Windows') >= 0) {
+ os = 'Windows';
+ }
+
+ const id = pad.id;
+ // Chrom* style: NAME (Vendor: xxxx Product: xxxx)
+ const exp1 = /vendor: ([0-9a-f]{4}) product: ([0-9a-f]{4})/i;
+ // Firefox/Safari style (safari may remove leading zeores)
+ const exp2 = /^([0-9a-f]+)-([0-9a-f]+)-/i;
+ let vendor = '';
+ let product = '';
+ if (exp1.test(id)) {
+ const match = exp1.exec(id);
+ vendor = match[1].padStart(4, '0');
+ product = match[2].padStart(4, '0');
+ } else if (exp2.test(id)) {
+ const match = exp2.exec(id);
+ vendor = match[1].padStart(4, '0');
+ product = match[2].padStart(4, '0');
+ }
+ if (!vendor || !product) {
+ return `${os}Unknown`;
+ }
+ return os + vendor + product;
+ },
+ },
+};
+mergeInto(LibraryManager.library, GodotDisplayGamepads);
+
/**
* Display server interface.
*
* Exposes all the functions needed by DisplayServer implementation.
*/
const GodotDisplay = {
- $GodotDisplay__deps: ['$GodotConfig', '$GodotRuntime', '$GodotDisplayCursor', '$GodotDisplayListeners', '$GodotDisplayDragDrop'],
+ $GodotDisplay__deps: ['$GodotConfig', '$GodotRuntime', '$GodotDisplayCursor', '$GodotDisplayListeners', '$GodotDisplayDragDrop', '$GodotDisplayGamepads'],
$GodotDisplay: {
window_icon: '',
},
@@ -491,6 +618,49 @@ const GodotDisplay = {
}, false);
GodotDisplayListeners.add(canvas, 'drop', GodotDisplayDragDrop.handler(dropFiles));
},
+
+ /*
+ * Gamepads
+ */
+ godot_js_display_gamepad_cb__sig: 'vi',
+ godot_js_display_gamepad_cb: function (change_cb) {
+ const onchange = GodotRuntime.get_func(change_cb);
+ GodotDisplayGamepads.init(onchange);
+ },
+
+ godot_js_display_gamepad_sample_count__sig: 'i',
+ godot_js_display_gamepad_sample_count: function () {
+ return GodotDisplayGamepads.get_samples().length;
+ },
+
+ godot_js_display_gamepad_sample__sig: 'i',
+ godot_js_display_gamepad_sample: function () {
+ GodotDisplayGamepads.sample();
+ return 0;
+ },
+
+ godot_js_display_gamepad_sample_get__sig: 'iiiiiii',
+ godot_js_display_gamepad_sample_get: function (p_index, r_btns, r_btns_num, r_axes, r_axes_num, r_standard) {
+ const sample = GodotDisplayGamepads.get_sample(p_index);
+ if (!sample || !sample.connected) {
+ return 1;
+ }
+ const btns = sample.buttons;
+ const btns_len = btns.length < 16 ? btns.length : 16;
+ for (let i = 0; i < btns_len; i++) {
+ GodotRuntime.setHeapValue(r_btns + (i << 2), btns[i], 'float');
+ }
+ GodotRuntime.setHeapValue(r_btns_num, btns_len, 'i32');
+ const axes = sample.axes;
+ const axes_len = axes.length < 10 ? axes.length : 10;
+ for (let i = 0; i < axes_len; i++) {
+ GodotRuntime.setHeapValue(r_axes + (i << 2), axes[i], 'float');
+ }
+ GodotRuntime.setHeapValue(r_axes_num, axes_len, 'i32');
+ const is_standard = sample.standard ? 1 : 0;
+ GodotRuntime.setHeapValue(r_standard, is_standard, 'i32');
+ return 0;
+ },
};
autoAddDeps(GodotDisplay, '$GodotDisplay');