wayland-protocols: Add gaming-input-unstable-v1 protocol

third_party/wayland-protocols/include/protocol/gaming-input-unstable-v1-server-protocol.h

+/* 
+ * Copyright 2016 The Chromium Authors.
+ * 
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ * 
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ * 
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef GAMING_INPUT_UNSTABLE_V1_SERVER_PROTOCOL_H
+#define GAMING_INPUT_UNSTABLE_V1_SERVER_PROTOCOL_H
+
+#ifdef  __cplusplus
+extern "C" {
+#endif
+
+#include <stdint.h>
+#include <stddef.h>
+#include "wayland-util.h"
+
+struct wl_client;
+struct wl_resource;
+
+struct zwp_gaming_input_v1;
+struct zwp_gamepad_v1;
+
+extern const struct wl_interface zwp_gaming_input_v1_interface;
+extern const struct wl_interface zwp_gamepad_v1_interface;
+
+/**
+ * zwp_gaming_input_v1 - extends wl_seat with gaming input devices
+ * @get_gamepad: get gamepad device assigned to seat
+ *
+ * A global interface to provide gaming input devices for a given seat.
+ *
+ * Currently only gamepad devices are supported.
+ *
+ * Warning! The protocol described in this file is experimental and
+ * backward incompatible changes may be made. Backward compatible changes
+ * may be added together with the corresponding uinterface version bump.
+ * Backward incompatible changes are done by bumping the version number in
+ * the protocol and uinterface names and resetting the interface version.
+ * Once the protocol is to be declared stable, the 'z' prefix and the
+ * version number in the protocol and interface names are removed and the
+ * interface version number is reset.
+ */
+struct zwp_gaming_input_v1_interface {
+        /**
+         * get_gamepad - get gamepad device assigned to seat
+         * @id: (none)
+         * @seat: (none)
+         *
+         * Create gamepad object. See zwp_gamepad_v1 interface for
+         * details.
+         */
+        void (*get_gamepad)(struct wl_client *client,
+                            struct wl_resource *resource,
+                            uint32_t id,
+                            struct wl_resource *seat);
+};
+
+#ifndef ZWP_GAMEPAD_V1_GAMEPAD_STATE_ENUM
+#define ZWP_GAMEPAD_V1_GAMEPAD_STATE_ENUM
+/**
+ * zwp_gamepad_v1_gamepad_state - connection state
+ * @ZWP_GAMEPAD_V1_GAMEPAD_STATE_OFF: no gamepads are connected or on.
+ * @ZWP_GAMEPAD_V1_GAMEPAD_STATE_ON: at least one gamepad is connected.
+ *
+ * 
+ */
+enum zwp_gamepad_v1_gamepad_state {
+        ZWP_GAMEPAD_V1_GAMEPAD_STATE_OFF = 0,
+        ZWP_GAMEPAD_V1_GAMEPAD_STATE_ON = 1,
+};
+#endif /* ZWP_GAMEPAD_V1_GAMEPAD_STATE_ENUM */
+
+#ifndef ZWP_GAMEPAD_V1_BUTTON_STATE_ENUM
+#define ZWP_GAMEPAD_V1_BUTTON_STATE_ENUM
+/**
+ * zwp_gamepad_v1_button_state - physical button state
+ * @ZWP_GAMEPAD_V1_BUTTON_STATE_RELEASED: the button is not pressed
+ * @ZWP_GAMEPAD_V1_BUTTON_STATE_PRESSED: the button is pressed
+ *
+ * Describes the physical state of a button that produced the button
+ * event.
+ */
+enum zwp_gamepad_v1_button_state {
+        ZWP_GAMEPAD_V1_BUTTON_STATE_RELEASED = 0,
+        ZWP_GAMEPAD_V1_BUTTON_STATE_PRESSED = 1,
+};
+#endif /* ZWP_GAMEPAD_V1_BUTTON_STATE_ENUM */
+
+/**
+ * zwp_gamepad_v1 - gamepad input device
+ * @destroy: destroy gamepad object
+ *
+ * The zwp_gamepad_v1 interface represents one or more gamepad input
+ * devices, which are reported as a normalized 'Standard Gamepad' as it is
+ * specified by the W3C Gamepad API at:
+ * https://w3c.github.io/gamepad/#remapping
+ */
+struct zwp_gamepad_v1_interface {
+        /**
+         * destroy - destroy gamepad object
+         *
+         * 
+         */
+        void (*destroy)(struct wl_client *client,
+                        struct wl_resource *resource);
+};
+
+#define ZWP_GAMEPAD_V1_STATE_CHANGE     0
+#define ZWP_GAMEPAD_V1_AXIS     1
+#define ZWP_GAMEPAD_V1_BUTTON   2
+#define ZWP_GAMEPAD_V1_FRAME    3
+
+static inline void
+zwp_gamepad_v1_send_state_change(struct wl_resource *resource_, uint32_t state)
+{
+        wl_resource_post_event(resource_, ZWP_GAMEPAD_V1_STATE_CHANGE, state);
+}
+
+static inline void
+zwp_gamepad_v1_send_axis(struct wl_resource *resource_, uint32_t time, uint32_t axis, wl_fixed_t value)
+{
+        wl_resource_post_event(resource_, ZWP_GAMEPAD_V1_AXIS, time, axis, value);
+}
+
+static inline void
+zwp_gamepad_v1_send_button(struct wl_resource *resource_, uint32_t time, uint32_t button, uint32_t state, wl_fixed_t analog)
+{
+        wl_resource_post_event(resource_, ZWP_GAMEPAD_V1_BUTTON, time, button, state, analog);
+}
+
+static inline void
+zwp_gamepad_v1_send_frame(struct wl_resource *resource_, uint32_t time)
+{
+        wl_resource_post_event(resource_, ZWP_GAMEPAD_V1_FRAME, time);
+}
+
+#ifdef  __cplusplus
+}
+#endif
+
+#endif