mpipe_transform.h

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/*
 * Copyright 2025-2026 NXP
 *
 * SPDX-License-Identifier: Apache-2.0
 */

 
#ifndef ZEPHYR_INCLUDE_MPIPE_MPIPE_TRANSFORM_H_
#define ZEPHYR_INCLUDE_MPIPE_MPIPE_TRANSFORM_H_

 
#include <zephyr/mpipe/mpipe_element.h>
#include <zephyr/mpipe/mpipe_pad.h>
#include <zephyr/mpipe/mpipe_structure.h>

enum mpipe_prop_transform {
        MPIPE_PROP_TRANSFORM_LAST,
};

enum mpipe_transform_mode {
        MPIPE_TRANSFORM_MODE_PASSTHROUGH = 0,
        MPIPE_TRANSFORM_MODE_INPLACE = 1,
        MPIPE_TRANSFORM_MODE_NORMAL = 2,
};

struct mpipe_transform {
        struct mpipe_element element;
        struct mpipe_pad sink_pad;
        struct mpipe_pad src_pad;
        struct mpipe_buffer_pool *in_pool;
        struct mpipe_buffer_pool *out_pool;
        enum mpipe_transform_mode mode;

        int (*set_caps)(struct mpipe_transform *self, enum mpipe_pad_direction direction,
                        const struct mpipe_structure *caps);
        int (*transform_caps)(struct mpipe_transform *self, enum mpipe_pad_direction direction,
                              const struct mpipe_structure *in, uint32_t index,
                              struct mpipe_structure *out);

        int (*propose_buffer_pool)(struct mpipe_transform *self, struct mpipe_dispatch *query);
        int (*decide_buffer_pool)(struct mpipe_transform *self, struct mpipe_dispatch *query);
};

int mpipe_transform_init(struct mpipe_transform *transform, uint8_t id);

int mpipe_transform_set_caps(struct mpipe_transform *transform, enum mpipe_pad_direction direction,
                             const struct mpipe_structure *caps);

int mpipe_transform_change_state(struct mpipe_element *self, enum mpipe_state_change transition);

 
#endif /* ZEPHYR_INCLUDE_MPIPE_MPIPE_TRANSFORM_H_ */