/* * This file is part of the MicroPython project, http://micropython.org/ * * The MIT License (MIT) * * Copyright (c) 2021 Jeff Epler for Adafruit Industries * * 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. IN NO EVENT SHALL THE * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include "py/obj.h" #include "py/runtime.h" #include "shared/runtime/context_manager_helpers.h" #include "shared-bindings/imagecapture/ParallelImageCapture.h" #include "shared-bindings/microcontroller/Pin.h" #include "common-hal/imagecapture/ParallelImageCapture.h" //| class ParallelImageCapture: //| """Capture image frames from a camera with parallel data interface""" //| //| def __init__( //| self, //| *, //| data_pins: List[microcontroller.Pin], //| clock: microcontroller.Pin, //| vsync: Optional[microcontroller.Pin], //| href: Optional[microcontroller.Pin], //| ) -> None: //| """Create a parallel image capture object //| //| This object is usually used with a camera-specific wrapper library such as `adafruit_ov5640 `_. //| //| :param List[microcontroller.Pin] data_pins: The data pins. //| :param microcontroller.Pin clock: The pixel clock input. //| :param microcontroller.Pin vsync: The vertical sync input, which has a negative-going pulse at the beginning of each frame. //| :param microcontroller.Pin href: The horizontal reference input, which is high whenever the camera is transmitting valid pixel information. //| """ //| ... 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) { enum { ARG_data_pins, ARG_clock, ARG_vsync, ARG_href, NUM_ARGS }; static const mp_arg_t allowed_args[] = { { MP_QSTR_data_pins, MP_ARG_OBJ | MP_ARG_KW_ONLY, { .u_obj = MP_ROM_NONE } }, { MP_QSTR_clock, MP_ARG_OBJ | MP_ARG_REQUIRED | MP_ARG_KW_ONLY }, { MP_QSTR_vsync, MP_ARG_OBJ | MP_ARG_REQUIRED | MP_ARG_KW_ONLY }, { MP_QSTR_href, MP_ARG_OBJ | MP_ARG_REQUIRED | MP_ARG_KW_ONLY }, }; mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)]; MP_STATIC_ASSERT(MP_ARRAY_SIZE(allowed_args) == NUM_ARGS); mp_arg_parse_all_kw_array(n_args, n_kw, all_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args); uint8_t pins[32]; uint8_t pin_count; validate_pins(MP_QSTR_data, pins, MP_ARRAY_SIZE(pins), args[ARG_data_pins].u_obj, &pin_count); const mcu_pin_obj_t *clock = validate_obj_is_free_pin(args[ARG_clock].u_obj, MP_QSTR_clock); const mcu_pin_obj_t *vsync = validate_obj_is_free_pin_or_none(args[ARG_vsync].u_obj, MP_QSTR_vsync); const mcu_pin_obj_t *href = validate_obj_is_free_pin_or_none(args[ARG_href].u_obj, MP_QSTR_href); imagecapture_parallelimagecapture_obj_t *self = mp_obj_malloc(imagecapture_parallelimagecapture_obj_t, &imagecapture_parallelimagecapture_type); common_hal_imagecapture_parallelimagecapture_construct(self, pins, pin_count, clock, vsync, href); return self; } //| def capture(self, buffer: WriteableBuffer) -> WriteableBuffer: //| """Capture a single frame into the given buffer. //| //| This will stop a continuous-mode capture, if one is in progress.""" //| ... STATIC mp_obj_t imagecapture_parallelimagecapture_capture(mp_obj_t self_in, mp_obj_t buffer) { imagecapture_parallelimagecapture_obj_t *self = (imagecapture_parallelimagecapture_obj_t *)self_in; common_hal_imagecapture_parallelimagecapture_singleshot_capture(self, buffer); return buffer; } STATIC MP_DEFINE_CONST_FUN_OBJ_2(imagecapture_parallelimagecapture_capture_obj, imagecapture_parallelimagecapture_capture); //| def continuous_capture_start( //| self, buffer1: WriteableBuffer, buffer2: WriteableBuffer, / //| ) -> None: //| """Begin capturing into the given buffers in the background. //| //| Call `continuous_capture_get_frame` to get the next available //| frame, and `continuous_capture_stop` to stop capturing. //| //| Until `continuous_capture_stop` (or `deinit`) is called, the //| `ParallelImageCapture` object keeps references to ``buffer1`` and //| ``buffer2``, so the objects will not be garbage collected.""" //| ... STATIC mp_obj_t imagecapture_parallelimagecapture_continuous_capture_start(mp_obj_t self_in, mp_obj_t buffer1, mp_obj_t buffer2) { imagecapture_parallelimagecapture_obj_t *self = (imagecapture_parallelimagecapture_obj_t *)self_in; common_hal_imagecapture_parallelimagecapture_continuous_capture_start(self, buffer1, buffer2); return mp_const_none; } STATIC MP_DEFINE_CONST_FUN_OBJ_3(imagecapture_parallelimagecapture_continuous_capture_start_obj, imagecapture_parallelimagecapture_continuous_capture_start); //| def continuous_capture_get_frame(self) -> WriteableBuffer: //| """Return the next available frame, one of the two buffers passed to `continuous_capture_start`""" //| ... STATIC mp_obj_t imagecapture_parallelimagecapture_continuous_capture_get_frame(mp_obj_t self_in) { imagecapture_parallelimagecapture_obj_t *self = (imagecapture_parallelimagecapture_obj_t *)self_in; return common_hal_imagecapture_parallelimagecapture_continuous_capture_get_frame(self); } STATIC MP_DEFINE_CONST_FUN_OBJ_1(imagecapture_parallelimagecapture_continuous_capture_get_frame_obj, imagecapture_parallelimagecapture_continuous_capture_get_frame); //| def continuous_capture_stop(self) -> None: //| """Stop continuous capture. //| //| Calling this method also causes the object to release its //| references to the buffers passed to `continuous_capture_start`, //| potentially allowing the objects to be garbage collected.""" //| ... STATIC mp_obj_t imagecapture_parallelimagecapture_continuous_capture_stop(mp_obj_t self_in) { imagecapture_parallelimagecapture_obj_t *self = (imagecapture_parallelimagecapture_obj_t *)self_in; common_hal_imagecapture_parallelimagecapture_continuous_capture_stop(self); return mp_const_none; } STATIC MP_DEFINE_CONST_FUN_OBJ_1(imagecapture_parallelimagecapture_continuous_capture_stop_obj, imagecapture_parallelimagecapture_continuous_capture_stop); //| def deinit(self) -> None: //| """Deinitialize this instance""" //| ... STATIC mp_obj_t imagecapture_parallelimagecapture_deinit(mp_obj_t self_in) { imagecapture_parallelimagecapture_obj_t *self = (imagecapture_parallelimagecapture_obj_t *)self_in; common_hal_imagecapture_parallelimagecapture_deinit(self); return mp_const_none; } STATIC MP_DEFINE_CONST_FUN_OBJ_1(imagecapture_parallelimagecapture_deinit_obj, imagecapture_parallelimagecapture_deinit); //| def __enter__(self) -> ParallelImageCapture: //| """No-op used in Context Managers.""" //| ... // Provided by context manager helper. //| def __exit__(self) -> None: //| """Automatically deinitializes the hardware on context exit. See //| :ref:`lifetime-and-contextmanagers` for more info.""" //| ... //| STATIC mp_obj_t imagecapture_parallelimagecapture___exit__(size_t n_args, const mp_obj_t *args) { (void)n_args; common_hal_imagecapture_parallelimagecapture_deinit(args[0]); return mp_const_none; } STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(imagecapture_parallelimagecapture___exit___obj, 4, 4, imagecapture_parallelimagecapture___exit__); STATIC const mp_rom_map_elem_t imagecapture_parallelimagecapture_locals_dict_table[] = { { MP_ROM_QSTR(MP_QSTR_deinit), MP_ROM_PTR(&imagecapture_parallelimagecapture_deinit_obj) }, { MP_ROM_QSTR(MP_QSTR___enter__), MP_ROM_PTR(&default___enter___obj) }, { MP_ROM_QSTR(MP_QSTR___exit__), MP_ROM_PTR(&imagecapture_parallelimagecapture___exit___obj) }, { MP_ROM_QSTR(MP_QSTR_capture), MP_ROM_PTR(&imagecapture_parallelimagecapture_capture_obj) }, { MP_ROM_QSTR(MP_QSTR_continuous_capture_start), MP_ROM_PTR(&imagecapture_parallelimagecapture_continuous_capture_start_obj) }, { MP_ROM_QSTR(MP_QSTR_continuous_capture_stop), MP_ROM_PTR(&imagecapture_parallelimagecapture_continuous_capture_stop_obj) }, { MP_ROM_QSTR(MP_QSTR_continuous_capture_get_frame), MP_ROM_PTR(&imagecapture_parallelimagecapture_continuous_capture_get_frame_obj) }, }; STATIC MP_DEFINE_CONST_DICT(imagecapture_parallelimagecapture_locals_dict, imagecapture_parallelimagecapture_locals_dict_table); MP_DEFINE_CONST_OBJ_TYPE( imagecapture_parallelimagecapture_type, MP_QSTR_ParallelImageCapture, MP_TYPE_FLAG_NONE, make_new, imagecapture_parallelimagecapture_make_new, locals_dict, &imagecapture_parallelimagecapture_locals_dict );