/**************************************************************************/
/* camera_android.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* 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 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. */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#pragma once
#include "core/os/semaphore.h"
#include "core/templates/safe_refcount.h"
#include "servers/camera/camera_feed.h"
#include "servers/camera/camera_server.h"
#include <camera/NdkCameraDevice.h>
#include <camera/NdkCameraError.h>
#include <camera/NdkCameraManager.h>
#include <camera/NdkCameraMetadataTags.h>
#include <media/NdkImageReader.h>
#include <optional>
enum class CameraFacing {
BACK = 0,
FRONT = 1,
};
struct CameraRotationParams {
int sensor_orientation;
CameraFacing camera_facing;
int display_rotation;
};
class CameraFeedAndroid : public CameraFeed {
GDSOFTCLASS(CameraFeedAndroid, CameraFeed);
private:
String camera_id;
int32_t orientation;
Ref<Image> image_y;
Ref<Image> image_uv;
Vector<uint8_t> data_y;
Vector<uint8_t> data_uv;
// Scratch buffers to avoid reallocations when compacting stride-aligned planes.
Vector<uint8_t> scratch_y;
Vector<uint8_t> scratch_uv;
ACameraManager *manager = nullptr;
ACameraMetadata *metadata = nullptr;
ACameraDevice *device = nullptr;
AImageReader *reader = nullptr;
ACameraCaptureSession *session = nullptr;
ACaptureRequest *request = nullptr;
ACaptureSessionOutput *session_output = nullptr;
ACaptureSessionOutputContainer *session_output_container = nullptr;
ACameraOutputTarget *camera_output_target = nullptr;
Mutex callback_mutex;
Semaphore session_closed_semaphore;
SafeFlag is_deactivating;
SafeFlag session_close_pending;
SafeFlag device_error_occurred;
bool was_active_before_pause = false;
// Callback structures - must be instance members, not static, to ensure
// correct 'this' pointer is captured for each camera feed instance.
ACameraDevice_stateCallbacks device_callbacks = {};
AImageReader_ImageListener image_listener = {};
ACameraCaptureSession_stateCallbacks session_callbacks = {};
void _add_formats();
void _set_rotation();
void refresh_camera_metadata();
static std::optional<int> calculate_rotation(const CameraRotationParams &p_params);
static int normalize_angle(int p_angle);
static int get_display_rotation();
static int get_app_orientation();
static void compact_stride_inplace(uint8_t *data, size_t width, int height, size_t stride);
static void onError(void *context, ACameraDevice *p_device, int error);
static void onDisconnected(void *context, ACameraDevice *p_device);
static void onImage(void *context, AImageReader *p_reader);
static void onSessionReady(void *context, ACameraCaptureSession *session);
static void onSessionActive(void *context, ACameraCaptureSession *session);
static void onSessionClosed(void *context, ACameraCaptureSession *session);
protected:
public:
bool activate_feed() override;
void deactivate_feed() override;
bool set_format(int p_index, const Dictionary &p_parameters) override;
Array get_formats() const override;
FeedFormat get_format() const override;
void handle_pause();
void handle_resume();
void handle_rotation_change();
CameraFeedAndroid(ACameraManager *manager, ACameraMetadata *metadata, const char *id,
CameraFeed::FeedPosition position, int32_t orientation);
~CameraFeedAndroid() override;
};
class CameraAndroid : public CameraServer {
GDSOFTCLASS(CameraAndroid, CameraServer);
private:
ACameraManager *cameraManager = nullptr;
void update_feeds();
void remove_all_feeds();
public:
void set_monitoring_feeds(bool p_monitoring_feeds) override;
void handle_application_pause() override;
void handle_application_resume() override;
void handle_display_rotation_change(int p_orientation) override;
~CameraAndroid();
};