/* SPDX-License-Identifier: LGPL-2.1-or-later */ /* * Copyright (C) 2019, Google Inc. * * camera3_hal.cpp - Android Camera HALv3 module */ #include #include "libcamera/internal/log.h" #include "camera_device.h" #include "camera_hal_manager.h" using namespace libcamera; LOG_DEFINE_CATEGORY(HAL) /*------------------------------------------------------------------------------ * Android Camera HAL callbacks */ static int hal_get_number_of_cameras() { return CameraHalManager::instance()->numCameras(); } static int hal_get_camera_info(int id, struct camera_info *info) { return CameraHalManager::instance()->getCameraInfo(id, info); } static int hal_set_callbacks(const camera_module_callbacks_t *callbacks) { CameraHalManager::instance()->setCallbacks(callbacks); return 0; } static int hal_open_legacy([[maybe_unused]] const struct hw_module_t *module, [[maybe_unused]] const char *id, [[maybe_unused]] uint32_t halVersion, [[maybe_unused]] struct hw_device_t **device) { return -ENOSYS; } static int hal_set_torch_mode([[maybe_unused]] const char *camera_id, [[maybe_unused]] bool enabled) { return -ENOSYS; } /* * First entry point of the camera HAL module. * * Initialize the HAL but does not open any camera device yet (see hal_dev_open) */ static int hal_init() { LOG(HAL, Info) << "Initialising Android camera HAL"; CameraHalManager::instance()->init(); return 0; } /*------------------------------------------------------------------------------ * Android Camera Device */ static int hal_dev_open(const hw_module_t *module, const char *name, hw_device_t **device) { LOG(HAL, Debug) << "Open camera " << name; int id = atoi(name); auto [camera, ret] = CameraHalManager::instance()->open(id, module); if (!camera) { LOG(HAL, Error) << "Failed to open camera module '" << id << "'"; return ret == -EBUSY ? -EUSERS : ret; } *device = &camera->camera3Device()->common; return 0; } static struct hw_module_methods_t hal_module_methods = { .open = hal_dev_open, }; camera_module_t HAL_MODULE_INFO_SYM = { .common = { .tag = HARDWARE_MODULE_TAG, .module_api_version = CAMERA_MODULE_API_VERSION_2_4, .hal_api_version = HARDWARE_HAL_API_VERSION, .id = CAMERA_HARDWARE_MODULE_ID, .name = "libcamera camera HALv3 module", .author = "libcamera", .methods = &hal_module_methods, .dso = nullptr, .reserved = {}, }, .get_number_of_cameras = hal_get_number_of_cameras, .get_camera_info = hal_get_camera_info, .set_callbacks = hal_set_callbacks, .get_vendor_tag_ops = nullptr, .open_legacy = hal_open_legacy, .set_torch_mode = hal_set_torch_mode, .init = hal_init, .reserved = {}, }; itch'/> Jacopo Mondi's clone of libcameragit repository hosting on libcamera.org
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path: root/src/apps/common/image.h
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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2021, Ideas on Board Oy
 *
 * image.h - Multi-planar image with access to pixel data
 */

#pragma once

#include <memory>
#include <stdint.h>
#include <vector>

#include <libcamera/base/class.h>
#include <libcamera/base/flags.h>
#include <libcamera/base/span.h>

#include <libcamera/framebuffer.h>

class Image
{
public:
	enum class MapMode {
		ReadOnly = 1 << 0,
		WriteOnly = 1 << 1,
		ReadWrite = ReadOnly | WriteOnly,
	};

	static std::unique_ptr<Image> fromFrameBuffer(const libcamera::FrameBuffer *buffer,
						      MapMode mode);

	~Image();

	unsigned int numPlanes() const;

	libcamera::Span<uint8_t> data(unsigned int plane);
	libcamera::Span<const uint8_t> data(unsigned int plane) const;

private:
	LIBCAMERA_DISABLE_COPY(Image)

	Image();

	std::vector<libcamera::Span<uint8_t>> maps_;
	std::vector<libcamera::Span<uint8_t>> planes_;
};

namespace libcamera {
LIBCAMERA_FLAGS_ENABLE_OPERATORS(Image::MapMode)
}
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