113 lines
4.6 KiB
C
113 lines
4.6 KiB
C
/*
|
|
* This file is part of the Micro Python project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2018 Scott Shawcroft 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 "shared-bindings/displayio/Bitmap.h"
|
|
|
|
#include <stdint.h>
|
|
|
|
#include "lib/utils/context_manager_helpers.h"
|
|
#include "py/binary.h"
|
|
#include "py/objproperty.h"
|
|
#include "py/runtime.h"
|
|
#include "shared-bindings/microcontroller/Pin.h"
|
|
#include "shared-bindings/util.h"
|
|
#include "supervisor/shared/translate.h"
|
|
|
|
//| .. currentmodule:: displayio
|
|
//|
|
|
//| :class:`Bitmap` -- Stores values in a 2D array
|
|
//| ==========================================================================
|
|
//|
|
|
//| Stores values of a certain size in a 2D array
|
|
//|
|
|
//| .. warning:: This will likely be changed before 4.0.0. Consider it very experimental.
|
|
//|
|
|
//| .. class:: Bitmap(width, height, value_count)
|
|
//|
|
|
//| Create a Bitmap object with the given fixed size. Each pixel stores a value that is used to
|
|
//| index into a corresponding palette. This enables differently colored sprites to share the
|
|
//| underlying Bitmap. value_count is used to minimize the memory used to store the Bitmap.
|
|
//|
|
|
//| :param int width: The number of values wide
|
|
//| :param int height: The number of values high
|
|
//| :param int value_count: The number of possible pixel values.
|
|
//|
|
|
STATIC mp_obj_t displayio_bitmap_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
|
|
mp_arg_check_num(n_args, kw_args, 3, 3, false);
|
|
uint32_t width = mp_obj_get_int(pos_args[0]);
|
|
uint32_t height = mp_obj_get_int(pos_args[1]);
|
|
uint32_t value_count = mp_obj_get_int(pos_args[2]);
|
|
uint32_t power_of_two = 1;
|
|
while (value_count > (1U << power_of_two)) {
|
|
power_of_two <<= 1;
|
|
}
|
|
|
|
displayio_bitmap_t *self = m_new_obj(displayio_bitmap_t);
|
|
self->base.type = &displayio_bitmap_type;
|
|
common_hal_displayio_bitmap_construct(self, width, height, power_of_two);
|
|
|
|
return MP_OBJ_FROM_PTR(self);
|
|
}
|
|
|
|
|
|
//| .. method:: _load_row(y, data)
|
|
//|
|
|
//| Loads pre-packed data into the given row.
|
|
//|
|
|
STATIC mp_obj_t displayio_bitmap_obj__load_row(mp_obj_t self_in, mp_obj_t y_in, mp_obj_t data_in) {
|
|
displayio_bitmap_t *self = MP_OBJ_TO_PTR(self_in);
|
|
mp_int_t y;
|
|
if (!mp_obj_get_int_maybe(y_in, &y)) {
|
|
mp_raise_ValueError(translate("y should be an int"));
|
|
}
|
|
mp_buffer_info_t bufinfo;
|
|
if (mp_get_buffer(data_in, &bufinfo, MP_BUFFER_READ)) {
|
|
if (bufinfo.typecode != 'b' && bufinfo.typecode != 'B' && bufinfo.typecode != BYTEARRAY_TYPECODE) {
|
|
mp_raise_ValueError(translate("row buffer must be a bytearray or array of type 'b' or 'B'"));
|
|
}
|
|
uint8_t* buf = bufinfo.buf;
|
|
common_hal_displayio_bitmap_load_row(self, y, buf, bufinfo.len);
|
|
} else {
|
|
mp_raise_TypeError(translate("row data must be a buffer"));
|
|
}
|
|
return mp_const_none;
|
|
}
|
|
MP_DEFINE_CONST_FUN_OBJ_3(displayio_bitmap__load_row_obj, displayio_bitmap_obj__load_row);
|
|
|
|
STATIC const mp_rom_map_elem_t displayio_bitmap_locals_dict_table[] = {
|
|
{ MP_ROM_QSTR(MP_QSTR__load_row), MP_ROM_PTR(&displayio_bitmap__load_row_obj) },
|
|
};
|
|
STATIC MP_DEFINE_CONST_DICT(displayio_bitmap_locals_dict, displayio_bitmap_locals_dict_table);
|
|
|
|
const mp_obj_type_t displayio_bitmap_type = {
|
|
{ &mp_type_type },
|
|
.name = MP_QSTR_Bitmap,
|
|
.make_new = displayio_bitmap_make_new,
|
|
// TODO(tannewt): Implement subscr after slices support start, stop and step tuples.
|
|
// .subscr = displayio_bitmap_subscr,
|
|
.locals_dict = (mp_obj_dict_t*)&displayio_bitmap_locals_dict,
|
|
};
|