198 lines
8.1 KiB
C
198 lines
8.1 KiB
C
/*
|
|
* This file is part of the Micro Python project, http://micropython.org/
|
|
*
|
|
* The MIT License (MIT)
|
|
*
|
|
* Copyright (c) 2017 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/Palette.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"
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
//| class Palette:
|
|
//| """.. currentmodule:: displayio
|
|
//|
|
|
//| :class:`Palette` -- Stores a mapping from bitmap pixel palette_indexes to display colors
|
|
//| =========================================================================================
|
|
//|
|
|
//| Map a pixel palette_index to a full color. Colors are transformed to the display's format internally to
|
|
//| save memory."""
|
|
//|
|
|
//| def __init__(self, color_count: int):
|
|
//| """Create a Palette object to store a set number of colors.
|
|
//|
|
|
//| :param int color_count: The number of colors in the Palette"""
|
|
//| ...
|
|
//|
|
|
// TODO(tannewt): Add support for other color formats.
|
|
// TODO(tannewt): Add support for 8-bit alpha blending.
|
|
//|
|
|
STATIC mp_obj_t displayio_palette_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
|
|
enum { ARG_color_count };
|
|
static const mp_arg_t allowed_args[] = {
|
|
{ MP_QSTR_color_count, MP_ARG_REQUIRED | MP_ARG_INT },
|
|
};
|
|
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
|
|
mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
|
|
|
|
displayio_palette_t *self = m_new_obj(displayio_palette_t);
|
|
self->base.type = &displayio_palette_type;
|
|
common_hal_displayio_palette_construct(self, args[ARG_color_count].u_int);
|
|
|
|
return MP_OBJ_FROM_PTR(self);
|
|
}
|
|
|
|
//| def __len__(self, ) -> Any:
|
|
//| """Returns the number of colors in a Palette"""
|
|
//| ...
|
|
//|
|
|
STATIC mp_obj_t group_unary_op(mp_unary_op_t op, mp_obj_t self_in) {
|
|
displayio_palette_t *self = MP_OBJ_TO_PTR(self_in);
|
|
switch (op) {
|
|
case MP_UNARY_OP_BOOL: return mp_const_true;
|
|
case MP_UNARY_OP_LEN:
|
|
return MP_OBJ_NEW_SMALL_INT(common_hal_displayio_palette_get_len(self));
|
|
default: return MP_OBJ_NULL; // op not supported
|
|
}
|
|
}
|
|
|
|
//| def __setitem__(self, index: Any, value: Any) -> Any:
|
|
//| """Sets the pixel color at the given index. The index should be an integer in the range 0 to color_count-1.
|
|
//|
|
|
//| The value argument represents a color, and can be from 0x000000 to 0xFFFFFF (to represent an RGB value).
|
|
//| Value can be an int, bytes (3 bytes (RGB) or 4 bytes (RGB + pad byte)), bytearray,
|
|
//| or a tuple or list of 3 integers.
|
|
//|
|
|
//| This allows you to::
|
|
//|
|
|
//| palette[0] = 0xFFFFFF # set using an integer
|
|
//| palette[1] = b'\xff\xff\x00' # set using 3 bytes
|
|
//| palette[2] = b'\xff\xff\x00\x00' # set using 4 bytes
|
|
//| palette[3] = bytearray(b'\x00\x00\xFF') # set using a bytearay of 3 or 4 bytes
|
|
//| palette[4] = (10, 20, 30) # set using a tuple of 3 integers"""
|
|
//| ...
|
|
//|
|
|
STATIC mp_obj_t palette_subscr(mp_obj_t self_in, mp_obj_t index_in, mp_obj_t value) {
|
|
if (value == MP_OBJ_NULL) {
|
|
// delete item
|
|
return MP_OBJ_NULL; // op not supported
|
|
}
|
|
// Slicing not supported. Use a duplicate Palette to swap multiple colors atomically.
|
|
if (MP_OBJ_IS_TYPE(index_in, &mp_type_slice)) {
|
|
return MP_OBJ_NULL;
|
|
}
|
|
displayio_palette_t *self = MP_OBJ_TO_PTR(self_in);
|
|
size_t index = mp_get_index(&displayio_palette_type, self->color_count, index_in, false);
|
|
// index read
|
|
if (value == MP_OBJ_SENTINEL) {
|
|
return MP_OBJ_NEW_SMALL_INT(common_hal_displayio_palette_get_color(self, index));
|
|
}
|
|
|
|
// Convert a tuple or list to a bytearray.
|
|
if (MP_OBJ_IS_TYPE(value, &mp_type_tuple) ||
|
|
MP_OBJ_IS_TYPE(value, &mp_type_list)) {
|
|
value = mp_type_bytes.make_new(&mp_type_bytes, 1, &value, NULL);
|
|
}
|
|
|
|
uint32_t color;
|
|
mp_int_t int_value;
|
|
mp_buffer_info_t bufinfo;
|
|
if (mp_get_buffer(value, &bufinfo, MP_BUFFER_READ)) {
|
|
if (bufinfo.typecode != 'b' && bufinfo.typecode != 'B' && bufinfo.typecode != BYTEARRAY_TYPECODE) {
|
|
mp_raise_ValueError(translate("color buffer must be a bytearray or array of type 'b' or 'B'"));
|
|
}
|
|
uint8_t* buf = bufinfo.buf;
|
|
if (bufinfo.len == 3 || bufinfo.len == 4) {
|
|
color = buf[0] << 16 | buf[1] << 8 | buf[2];
|
|
} else {
|
|
mp_raise_ValueError(translate("color buffer must be 3 bytes (RGB) or 4 bytes (RGB + pad byte)"));
|
|
}
|
|
} else if (mp_obj_get_int_maybe(value, &int_value)) {
|
|
if (int_value < 0 || int_value > 0xffffff) {
|
|
mp_raise_TypeError(translate("color must be between 0x000000 and 0xffffff"));
|
|
}
|
|
color = int_value;
|
|
} else {
|
|
mp_raise_TypeError(translate("color buffer must be a buffer, tuple, list, or int"));
|
|
}
|
|
common_hal_displayio_palette_set_color(self, index, color);
|
|
return mp_const_none;
|
|
}
|
|
|
|
//| def make_transparent(self, palette_index: Any) -> Any: ...
|
|
//|
|
|
STATIC mp_obj_t displayio_palette_obj_make_transparent(mp_obj_t self_in, mp_obj_t palette_index_obj) {
|
|
displayio_palette_t *self = MP_OBJ_TO_PTR(self_in);
|
|
|
|
mp_int_t palette_index;
|
|
if (!mp_obj_get_int_maybe(palette_index_obj, &palette_index)) {
|
|
mp_raise_ValueError(translate("palette_index should be an int"));
|
|
}
|
|
common_hal_displayio_palette_make_transparent(self, palette_index);
|
|
return mp_const_none;
|
|
}
|
|
MP_DEFINE_CONST_FUN_OBJ_2(displayio_palette_make_transparent_obj, displayio_palette_obj_make_transparent);
|
|
|
|
//| def make_opaque(self, palette_index: Any) -> Any: ...
|
|
//|
|
|
STATIC mp_obj_t displayio_palette_obj_make_opaque(mp_obj_t self_in, mp_obj_t palette_index_obj) {
|
|
displayio_palette_t *self = MP_OBJ_TO_PTR(self_in);
|
|
|
|
mp_int_t palette_index;
|
|
if (!mp_obj_get_int_maybe(palette_index_obj, &palette_index)) {
|
|
mp_raise_ValueError(translate("palette_index should be an int"));
|
|
}
|
|
common_hal_displayio_palette_make_opaque(self, palette_index);
|
|
return mp_const_none;
|
|
}
|
|
MP_DEFINE_CONST_FUN_OBJ_2(displayio_palette_make_opaque_obj, displayio_palette_obj_make_opaque);
|
|
|
|
STATIC const mp_rom_map_elem_t displayio_palette_locals_dict_table[] = {
|
|
{ MP_ROM_QSTR(MP_QSTR_make_transparent), MP_ROM_PTR(&displayio_palette_make_transparent_obj) },
|
|
{ MP_ROM_QSTR(MP_QSTR_make_opaque), MP_ROM_PTR(&displayio_palette_make_opaque_obj) },
|
|
};
|
|
STATIC MP_DEFINE_CONST_DICT(displayio_palette_locals_dict, displayio_palette_locals_dict_table);
|
|
|
|
const mp_obj_type_t displayio_palette_type = {
|
|
{ &mp_type_type },
|
|
.name = MP_QSTR_Palette,
|
|
.make_new = displayio_palette_make_new,
|
|
.subscr = palette_subscr,
|
|
.unary_op = group_unary_op,
|
|
.getiter = mp_obj_new_generic_iterator,
|
|
.locals_dict = (mp_obj_dict_t*)&displayio_palette_locals_dict,
|
|
};
|