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/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* ipa_interface.h - Image Processing Algorithm interface
*/
#ifndef __LIBCAMERA_IPA_INTERFACE_H__
#define __LIBCAMERA_IPA_INTERFACE_H__
#include <stddef.h>
#include <stdint.h>
#ifdef __cplusplus
extern "C" {
#endif
struct ipa_context {
const struct ipa_context_ops *ops;
};
struct ipa_settings {
const char *configuration_file;
};
struct ipa_sensor_info {
const char *model;
uint8_t bits_per_pixel;
struct {
uint32_t width;
uint32_t height;
} active_area;
struct {
int32_t left;
int32_t top;
uint32_t width;
uint32_t height;
} analog_crop;
struct {
uint32_t width;
uint32_t height;
} output_size;
uint64_t pixel_rate;
uint32_t line_length;
};
struct ipa_stream {
unsigned int id;
unsigned int pixel_format;
unsigned int width;
unsigned int height;
};
struct ipa_control_info_map {
unsigned int id;
const uint8_t *data;
size_t size;
};
struct ipa_buffer_plane {
int dmabuf;
size_t length;
};
struct ipa_buffer {
unsigned int id;
unsigned int num_planes;
struct ipa_buffer_plane planes[3];
};
struct ipa_control_list {
const uint8_t *data;
unsigned int size;
};
struct ipa_operation_data {
unsigned int operation;
const uint32_t *data;
unsigned int num_data;
const struct ipa_control_list *lists;
unsigned int num_lists;
};
struct ipa_callback_ops {
void (*queue_frame_action)(void *cb_ctx, unsigned int frame,
struct ipa_operation_data &data);
};
struct ipa_context_ops {
void (*destroy)(struct ipa_context *ctx);
void *(*get_interface)(struct ipa_context *ctx);
void (*init)(struct ipa_context *ctx,
const struct ipa_settings *settings);
int (*start)(struct ipa_context *ctx);
void (*stop)(struct ipa_context *ctx);
void (*register_callbacks)(struct ipa_context *ctx,
const struct ipa_callback_ops *callbacks,
void *cb_ctx);
void (*configure)(struct ipa_context *ctx,
const struct ipa_sensor_info *sensor_info,
const struct ipa_stream *streams,
unsigned int num_streams,
const struct ipa_control_info_map *maps,
unsigned int num_maps);
void (*map_buffers)(struct ipa_context *ctx,
const struct ipa_buffer *buffers,
size_t num_buffers);
void (*unmap_buffers)(struct ipa_context *ctx, const unsigned int *ids,
size_t num_buffers);
void (*process_event)(struct ipa_context *ctx,
const struct ipa_operation_data *data);
};
struct ipa_context *ipaCreate();
#ifdef __cplusplus
}
#include <map>
#include <vector>
#include <libcamera/buffer.h>
#include <libcamera/controls.h>
#include <libcamera/geometry.h>
#include <libcamera/signal.h>
namespace libcamera {
struct IPASettings {
std::string configurationFile;
};
struct IPAStream {
unsigned int pixelFormat;
Size size;
};
struct IPABuffer {
unsigned int id;
std::vector<FrameBuffer::Plane> planes;
};
struct IPAOperationData {
unsigned int operation;
std::vector<uint32_t> data;
std::vector<ControlList> controls;
};
struct CameraSensorInfo;
class IPAInterface
{
public:
virtual ~IPAInterface() {}
virtual int init(const IPASettings &settings) = 0;
virtual int start() = 0;
virtual void stop() = 0;
virtual void configure(const CameraSensorInfo &sensorInfo,
const std::map<unsigned int, IPAStream> &streamConfig,
const std::map<unsigned int, const ControlInfoMap &> &entityControls) = 0;
virtual void mapBuffers(const std::vector<IPABuffer> &buffers) = 0;
virtual void unmapBuffers(const std::vector<unsigned int> &ids) = 0;
virtual void processEvent(const IPAOperationData &data) = 0;
Signal<unsigned int, const IPAOperationData &> queueFrameAction;
};
} /* namespace libcamera */
#endif
#endif /* __LIBCAMERA_IPA_INTERFACE_H__ */
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