Jeff Epler
8aa1969c61
This just delegates to .deinit(). Also, change default __enter__ to a macro that reuses the identically-beving "identity_obj", and harmonize a few sites so that the naming s consistent. Saves about 800 bytes on metro rp2350.
179 lines
8.3 KiB
C
179 lines
8.3 KiB
C
// This file is part of the CircuitPython project: https://circuitpython.org
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//
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// SPDX-FileCopyrightText: Copyright (c) 2021 Jeff Epler for Adafruit Industries
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//
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// SPDX-License-Identifier: MIT
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#include "py/obj.h"
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#include "py/runtime.h"
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#include "shared/runtime/context_manager_helpers.h"
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#include "shared-bindings/imagecapture/ParallelImageCapture.h"
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#include "shared-bindings/microcontroller/Pin.h"
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#include "common-hal/imagecapture/ParallelImageCapture.h"
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//| class ParallelImageCapture:
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//| """Capture image frames from a camera with parallel data interface"""
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//|
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//| def __init__(
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//| self,
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//| *,
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//| data_pins: List[microcontroller.Pin],
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//| clock: microcontroller.Pin,
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//| vsync: Optional[microcontroller.Pin],
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//| href: Optional[microcontroller.Pin],
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//| ) -> None:
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//| """Create a parallel image capture object
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//|
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//| This object is usually used with a camera-specific wrapper library such as `adafruit_ov5640 <https://circuitpython.readthedocs.io/projects/ov5640/en/latest/>`_.
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//|
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//| :param List[microcontroller.Pin] data_pins: The data pins.
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//| :param microcontroller.Pin clock: The pixel clock input.
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//| :param microcontroller.Pin vsync: The vertical sync input, which has a negative-going pulse at the beginning of each frame.
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//| :param microcontroller.Pin href: The horizontal reference input, which is high whenever the camera is transmitting valid pixel information.
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//| """
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//| ...
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//|
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static mp_obj_t imagecapture_parallelimagecapture_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *all_args) {
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enum { ARG_data_pins, ARG_clock, ARG_vsync, ARG_href,
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NUM_ARGS };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_data_pins, MP_ARG_OBJ | MP_ARG_KW_ONLY, { .u_obj = MP_ROM_NONE } },
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{ MP_QSTR_clock, MP_ARG_OBJ | MP_ARG_REQUIRED | MP_ARG_KW_ONLY },
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{ MP_QSTR_vsync, MP_ARG_OBJ | MP_ARG_REQUIRED | MP_ARG_KW_ONLY },
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{ MP_QSTR_href, MP_ARG_OBJ | MP_ARG_REQUIRED | MP_ARG_KW_ONLY },
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};
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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MP_STATIC_ASSERT(MP_ARRAY_SIZE(allowed_args) == NUM_ARGS);
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mp_arg_parse_all_kw_array(n_args, n_kw, all_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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uint8_t pins[32];
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uint8_t pin_count;
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validate_pins(MP_QSTR_data, pins, MP_ARRAY_SIZE(pins), args[ARG_data_pins].u_obj, &pin_count);
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const mcu_pin_obj_t *clock = validate_obj_is_free_pin(args[ARG_clock].u_obj, MP_QSTR_clock);
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const mcu_pin_obj_t *vsync = validate_obj_is_free_pin_or_none(args[ARG_vsync].u_obj, MP_QSTR_vsync);
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const mcu_pin_obj_t *href = validate_obj_is_free_pin_or_none(args[ARG_href].u_obj, MP_QSTR_href);
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imagecapture_parallelimagecapture_obj_t *self =
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mp_obj_malloc(imagecapture_parallelimagecapture_obj_t, &imagecapture_parallelimagecapture_type);
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common_hal_imagecapture_parallelimagecapture_construct(self, pins, pin_count, clock, vsync, href);
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return self;
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}
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//| def capture(self, buffer: WriteableBuffer) -> WriteableBuffer:
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//| """Capture a single frame into the given buffer.
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//|
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//| This will stop a continuous-mode capture, if one is in progress."""
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//| ...
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//|
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static mp_obj_t imagecapture_parallelimagecapture_capture(mp_obj_t self_in, mp_obj_t buffer) {
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imagecapture_parallelimagecapture_obj_t *self = (imagecapture_parallelimagecapture_obj_t *)self_in;
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common_hal_imagecapture_parallelimagecapture_singleshot_capture(self, buffer);
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return buffer;
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}
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static MP_DEFINE_CONST_FUN_OBJ_2(imagecapture_parallelimagecapture_capture_obj, imagecapture_parallelimagecapture_capture);
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//| def continuous_capture_start(
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//| self, buffer1: WriteableBuffer, buffer2: WriteableBuffer, /
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//| ) -> None:
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//| """Begin capturing into the given buffers in the background.
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//|
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//| Call `continuous_capture_get_frame` to get the next available
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//| frame, and `continuous_capture_stop` to stop capturing.
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//|
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//| Until `continuous_capture_stop` (or `deinit`) is called, the
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//| `ParallelImageCapture` object keeps references to ``buffer1`` and
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//| ``buffer2``, so the objects will not be garbage collected."""
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//| ...
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//|
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static mp_obj_t imagecapture_parallelimagecapture_continuous_capture_start(mp_obj_t self_in, mp_obj_t buffer1, mp_obj_t buffer2) {
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imagecapture_parallelimagecapture_obj_t *self = (imagecapture_parallelimagecapture_obj_t *)self_in;
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common_hal_imagecapture_parallelimagecapture_continuous_capture_start(self, buffer1, buffer2);
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return mp_const_none;
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}
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static MP_DEFINE_CONST_FUN_OBJ_3(imagecapture_parallelimagecapture_continuous_capture_start_obj, imagecapture_parallelimagecapture_continuous_capture_start);
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//| def continuous_capture_get_frame(self) -> WriteableBuffer:
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//| """Return the next available frame, one of the two buffers passed to `continuous_capture_start`"""
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//| ...
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//|
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static mp_obj_t imagecapture_parallelimagecapture_continuous_capture_get_frame(mp_obj_t self_in) {
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imagecapture_parallelimagecapture_obj_t *self = (imagecapture_parallelimagecapture_obj_t *)self_in;
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return common_hal_imagecapture_parallelimagecapture_continuous_capture_get_frame(self);
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}
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static MP_DEFINE_CONST_FUN_OBJ_1(imagecapture_parallelimagecapture_continuous_capture_get_frame_obj, imagecapture_parallelimagecapture_continuous_capture_get_frame);
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//| def continuous_capture_stop(self) -> None:
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//| """Stop continuous capture.
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//|
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//| Calling this method also causes the object to release its
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//| references to the buffers passed to `continuous_capture_start`,
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//| potentially allowing the objects to be garbage collected."""
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//| ...
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//|
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static mp_obj_t imagecapture_parallelimagecapture_continuous_capture_stop(mp_obj_t self_in) {
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imagecapture_parallelimagecapture_obj_t *self = (imagecapture_parallelimagecapture_obj_t *)self_in;
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common_hal_imagecapture_parallelimagecapture_continuous_capture_stop(self);
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return mp_const_none;
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}
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static MP_DEFINE_CONST_FUN_OBJ_1(imagecapture_parallelimagecapture_continuous_capture_stop_obj, imagecapture_parallelimagecapture_continuous_capture_stop);
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//| def deinit(self) -> None:
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//| """Deinitialize this instance"""
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//| ...
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//|
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static mp_obj_t imagecapture_parallelimagecapture_deinit(mp_obj_t self_in) {
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imagecapture_parallelimagecapture_obj_t *self = (imagecapture_parallelimagecapture_obj_t *)self_in;
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common_hal_imagecapture_parallelimagecapture_deinit(self);
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return mp_const_none;
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}
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static MP_DEFINE_CONST_FUN_OBJ_1(imagecapture_parallelimagecapture_deinit_obj, imagecapture_parallelimagecapture_deinit);
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//| def __enter__(self) -> ParallelImageCapture:
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//| """No-op used in Context Managers."""
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//| ...
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//|
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// Provided by context manager helper.
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//| def __exit__(self) -> None:
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//| """Automatically deinitializes the hardware on context exit. See
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//| :ref:`lifetime-and-contextmanagers` for more info."""
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//| ...
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//|
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//|
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// Provided by context manager helper.
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static const mp_rom_map_elem_t imagecapture_parallelimagecapture_locals_dict_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&imagecapture_parallelimagecapture_deinit_obj) },
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{ MP_ROM_QSTR(MP_QSTR___enter__), MP_ROM_PTR(&default___enter___obj) },
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{ MP_ROM_QSTR(MP_QSTR___exit__), MP_ROM_PTR(&default___exit___obj) },
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{ MP_ROM_QSTR(MP_QSTR_capture), MP_ROM_PTR(&imagecapture_parallelimagecapture_capture_obj) },
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{ MP_ROM_QSTR(MP_QSTR_continuous_capture_start), MP_ROM_PTR(&imagecapture_parallelimagecapture_continuous_capture_start_obj) },
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{ MP_ROM_QSTR(MP_QSTR_continuous_capture_stop), MP_ROM_PTR(&imagecapture_parallelimagecapture_continuous_capture_stop_obj) },
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{ MP_ROM_QSTR(MP_QSTR_continuous_capture_get_frame), MP_ROM_PTR(&imagecapture_parallelimagecapture_continuous_capture_get_frame_obj) },
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};
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static MP_DEFINE_CONST_DICT(imagecapture_parallelimagecapture_locals_dict, imagecapture_parallelimagecapture_locals_dict_table);
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MP_DEFINE_CONST_OBJ_TYPE(
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imagecapture_parallelimagecapture_type,
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MP_QSTR_ParallelImageCapture,
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MP_TYPE_FLAG_NONE,
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make_new, imagecapture_parallelimagecapture_make_new,
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locals_dict, &imagecapture_parallelimagecapture_locals_dict
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);
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