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// This file is part of the CircuitPython project: https://circuitpython.org
//
// SPDX-FileCopyrightText: Copyright (c) 2021 Kevin Matocha
//
// SPDX-License-Identifier: MIT
#include "shared-bindings/displayio/Bitmap.h"
#include "shared-bindings/displayio/Palette.h"
#include "shared-bindings/displayio/ColorConverter.h"
#include "shared-bindings/bitmaptools/__init__.h"
#include <stdint.h>
#include "py/binary.h"
#include "py/enum.h"
#include "py/obj.h"
#include "py/runtime.h"
#if MICROPY_VFS
#include "extmod/vfs.h"
#endif
#if defined(MICROPY_VFS_POSIX) && MICROPY_VFS_POSIX
#include "extmod/vfs_posix.h"
#endif
// This assigns to [0] and [2] because the order is x1, y1, x2, y2
static void bitmaptools_validate_coord_range(int16_t out[3], const mp_arg_val_t in[3], int lim, const qstr what[2]) {
out[0] = mp_arg_validate_int_range(mp_arg_validate_type_int(in[0].u_obj, what[0]), 0, lim, what[0]);
if (in[2].u_obj == mp_const_none) {
out[2] = lim;
} else {
out[2] = mp_arg_validate_int_range(mp_arg_validate_type_int(in[2].u_obj, what[1]), out[0], lim, what[1]);
}
}
bitmaptools_rect_t bitmaptools_validate_coord_range_pair(const mp_arg_val_t in[4], int width, int height) {
static const qstr x_names[] = {MP_QSTR_x1, MP_QSTR_x2};
static const qstr y_names[] = {MP_QSTR_y1, MP_QSTR_y2};
bitmaptools_rect_t rect;
bitmaptools_validate_coord_range(&rect.arr[0], in, width, x_names);
bitmaptools_validate_coord_range(&rect.arr[1], in + 1, height, y_names);
return rect;
}
//| """Collection of bitmap manipulation tools
//|
//| .. note:: If you're looking for information about displaying bitmaps on
//| screens in CircuitPython, see `this Learn guide
//| <https://learn.adafruit.com/circuitpython-display-support-using-displayio>`_
//| for information about using the :py:mod:`displayio` module.
//| """
//|
//|
static int16_t validate_point(mp_obj_t point, int16_t default_value) {
// Checks if point is None and returns default_value, otherwise decodes integer value
if (point == mp_const_none) {
return default_value;
}
return mp_obj_get_int(point);
}
static void extract_tuple(mp_obj_t xy_tuple, int16_t *x, int16_t *y, int16_t x_default, int16_t y_default) {
// Helper function for rotozoom
// Extract x,y values from a tuple or default if None
if (xy_tuple == mp_const_none) {
*x = x_default;
*y = y_default;
} else if (!mp_obj_is_obj(xy_tuple)) {
mp_raise_ValueError(MP_ERROR_TEXT("clip point must be (x,y) tuple"));
} else {
mp_obj_t *items;
mp_obj_get_array_fixed_n(xy_tuple, 2, &items);
*x = mp_obj_get_int(items[0]);
*y = mp_obj_get_int(items[1]);
}
}
static void validate_clip_region(displayio_bitmap_t *bitmap, mp_obj_t clip0_tuple, int16_t *clip0_x, int16_t *clip0_y,
mp_obj_t clip1_tuple, int16_t *clip1_x, int16_t *clip1_y) {
// Helper function for rotozoom
// 1. Extract the clip x,y points from the two clip tuples
// 2. Rearrange values such that clip0_ < clip1_
// 3. Constrain the clip points to within the bitmap
extract_tuple(clip0_tuple, clip0_x, clip0_y, 0, 0);
extract_tuple(clip1_tuple, clip1_x, clip1_y, bitmap->width, bitmap->height);
// Ensure the value for clip0 is less than clip1 (for both x and y)
if (*clip0_x > *clip1_x) {
int16_t temp_value = *clip0_x; // swap values
*clip0_x = *clip1_x;
*clip1_x = temp_value;
}
if (*clip0_y > *clip1_y) {
int16_t temp_value = *clip0_y; // swap values
*clip0_y = *clip1_y;
*clip1_y = temp_value;
}
// Constrain the clip window to within the bitmap boundaries
if (*clip0_x < 0) {
*clip0_x = 0;
}
if (*clip0_y < 0) {
*clip0_y = 0;
}
if (*clip0_x > bitmap->width) {
*clip0_x = bitmap->width;
}
if (*clip0_y > bitmap->height) {
*clip0_y = bitmap->height;
}
if (*clip1_x < 0) {
*clip1_x = 0;
}
if (*clip1_y < 0) {
*clip1_y = 0;
}
if (*clip1_x > bitmap->width) {
*clip1_x = bitmap->width;
}
if (*clip1_y > bitmap->height) {
*clip1_y = bitmap->height;
}
}
//| def rotozoom(
//| dest_bitmap: displayio.Bitmap,
//| source_bitmap: displayio.Bitmap,
//| *,
//| ox: int,
//| oy: int,
//| dest_clip0: Tuple[int, int],
//| dest_clip1: Tuple[int, int],
//| px: int,
//| py: int,
//| source_clip0: Tuple[int, int],
//| source_clip1: Tuple[int, int],
//| angle: float,
//| scale: float,
//| skip_index: int,
//| ) -> None:
//| """Inserts the source bitmap region into the destination bitmap with rotation
//| (angle), scale and clipping (both on source and destination bitmaps).
//|
//| :param bitmap dest_bitmap: Destination bitmap that will be copied into
//| :param bitmap source_bitmap: Source bitmap that contains the graphical region to be copied
//| :param int ox: Horizontal pixel location in destination bitmap where source bitmap
//| point (px,py) is placed. Defaults to None which causes it to use the horizontal
//| midway point of the destination bitmap.
//| :param int oy: Vertical pixel location in destination bitmap where source bitmap
//| point (px,py) is placed. Defaults to None which causes it to use the vertical
//| midway point of the destination bitmap.
//| :param Tuple[int,int] dest_clip0: First corner of rectangular destination clipping
//| region that constrains region of writing into destination bitmap
//| :param Tuple[int,int] dest_clip1: Second corner of rectangular destination clipping
//| region that constrains region of writing into destination bitmap
//| :param int px: Horizontal pixel location in source bitmap that is placed into the
//| destination bitmap at (ox,oy). Defaults to None which causes it to use the
//| horizontal midway point in the source bitmap.
//| :param int py: Vertical pixel location in source bitmap that is placed into the
//| destination bitmap at (ox,oy). Defaults to None which causes it to use the
//| vertical midway point in the source bitmap.
//| :param Tuple[int,int] source_clip0: First corner of rectangular source clipping
//| region that constrains region of reading from the source bitmap
//| :param Tuple[int,int] source_clip1: Second corner of rectangular source clipping
//| region that constrains region of reading from the source bitmap
//| :param float angle: Angle of rotation, in radians (positive is clockwise direction).
//| Defaults to None which gets treated as 0.0 radians or no rotation.
//| :param float scale: Scaling factor. Defaults to None which gets treated as 1.0 or same
//| as original source size.
//| :param int skip_index: Bitmap palette index in the source that will not be copied,
//| set to None to copy all pixels"""
//| ...
//|
//|
static mp_obj_t bitmaptools_obj_rotozoom(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
enum {ARG_dest_bitmap, ARG_source_bitmap,
ARG_ox, ARG_oy, ARG_dest_clip0, ARG_dest_clip1,
ARG_px, ARG_py, ARG_source_clip0, ARG_source_clip1,
ARG_angle, ARG_scale, ARG_skip_index};
static const mp_arg_t allowed_args[] = {
{MP_QSTR_dest_bitmap, MP_ARG_REQUIRED | MP_ARG_OBJ},
{MP_QSTR_source_bitmap, MP_ARG_REQUIRED | MP_ARG_OBJ},
{MP_QSTR_ox, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} }, // None convert to destination->width / 2
{MP_QSTR_oy, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} }, // None convert to destination->height / 2
{MP_QSTR_dest_clip0, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} },
{MP_QSTR_dest_clip1, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} },
{MP_QSTR_px, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} }, // None convert to source->width / 2
{MP_QSTR_py, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} }, // None convert to source->height / 2
{MP_QSTR_source_clip0, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} },
{MP_QSTR_source_clip1, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} },
{MP_QSTR_angle, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} }, // None convert to 0.0
{MP_QSTR_scale, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} }, // None convert to 1.0
{MP_QSTR_skip_index, MP_ARG_OBJ | MP_ARG_KW_ONLY, {.u_obj = mp_const_none} },
};
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_bitmap_t *destination = MP_OBJ_TO_PTR(mp_arg_validate_type(args[ARG_dest_bitmap].u_obj, &displayio_bitmap_type, MP_QSTR_dest_bitmap)); // the destination bitmap
displayio_bitmap_t *source = MP_OBJ_TO_PTR(mp_arg_validate_type(args[ARG_source_bitmap].u_obj, &displayio_bitmap_type, MP_QSTR_source_bitmap)); // the source bitmap
// ensure that the destination bitmap has at least as many `bits_per_value` as the source
if (destination->bits_per_value < source->bits_per_value) {
mp_raise_ValueError(MP_ERROR_TEXT("source palette too large"));
}
// Confirm the destination location target (ox,oy); if None, default to bitmap midpoint
int16_t ox, oy;
ox = validate_point(args[ARG_ox].u_obj, destination->width / 2);
oy = validate_point(args[ARG_oy].u_obj, destination->height / 2);
// Confirm the source location target (px,py); if None, default to bitmap midpoint
int16_t px, py;
px = validate_point(args[ARG_px].u_obj, source->width / 2);
py = validate_point(args[ARG_py].u_obj, source->height / 2);
// Validate the clipping regions for the destination bitmap
int16_t dest_clip0_x, dest_clip0_y, dest_clip1_x, dest_clip1_y;
validate_clip_region(destination, args[ARG_dest_clip0].u_obj, &dest_clip0_x, &dest_clip0_y,
args[ARG_dest_clip1].u_obj, &dest_clip1_x, &dest_clip1_y);
// Validate the clipping regions for the source bitmap
int16_t source_clip0_x, source_clip0_y, source_clip1_x, source_clip1_y;
validate_clip_region(source, args[ARG_source_clip0].u_obj, &source_clip0_x, &source_clip0_y,
args[ARG_source_clip1].u_obj, &source_clip1_x, &source_clip1_y);
// Confirm the angle value
mp_float_t angle = 0.0;
if (args[ARG_angle].u_obj != mp_const_none) {
angle = mp_obj_get_float(args[ARG_angle].u_obj);
}
// Confirm the scale value
mp_float_t scale = 1.0;
if (args[ARG_scale].u_obj != mp_const_none) {
scale = mp_obj_get_float(args[ARG_scale].u_obj);
}
if (scale < 0) { // ensure scale >= 0
scale = 1.0;
}
uint32_t skip_index;
bool skip_index_none; // Flag whether input skip_value was None
if (args[ARG_skip_index].u_obj == mp_const_none) {
skip_index = 0;
skip_index_none = true;
} else {
skip_index = mp_obj_get_int(args[ARG_skip_index].u_obj);
skip_index_none = false;
}
common_hal_bitmaptools_rotozoom(destination, ox, oy,
dest_clip0_x, dest_clip0_y,
dest_clip1_x, dest_clip1_y,
source, px, py,
source_clip0_x, source_clip0_y,
source_clip1_x, source_clip1_y,
angle,
scale,
skip_index, skip_index_none);
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_KW(bitmaptools_rotozoom_obj, 0, bitmaptools_obj_rotozoom);
//| class BlendMode:
//| """The blend mode for `alphablend` to operate use"""
//|
//| Normal: BlendMode
//| """Blend with equal parts of the two source bitmaps"""
//|
//| Screen: BlendMode
//| """Blend based on the value in each color channel. The result keeps the lighter colors and discards darker colors."""
//|
//|
MAKE_ENUM_VALUE(bitmaptools_blendmode_type, bitmaptools_blendmode, Normal, BITMAPTOOLS_BLENDMODE_NORMAL);
MAKE_ENUM_VALUE(bitmaptools_blendmode_type, bitmaptools_blendmode, Screen, BITMAPTOOLS_BLENDMODE_SCREEN);
MAKE_ENUM_MAP(bitmaptools_blendmode) {
MAKE_ENUM_MAP_ENTRY(bitmaptools_blendmode, Normal),
MAKE_ENUM_MAP_ENTRY(bitmaptools_blendmode, Screen),
};
static MP_DEFINE_CONST_DICT(bitmaptools_blendmode_locals_dict, bitmaptools_blendmode_locals_table);
MAKE_PRINTER(bitmaptools, bitmaptools_blendmode);
MAKE_ENUM_TYPE(bitmaptools, BlendMode, bitmaptools_blendmode);
// requires at least 2 arguments (destination bitmap and source bitmap)
//| def alphablend(
//| dest_bitmap: displayio.Bitmap,
//| source_bitmap_1: displayio.Bitmap,
//| source_bitmap_2: displayio.Bitmap,
//| colorspace: displayio.Colorspace,
//| factor1: float = 0.5,
//| factor2: Optional[float] = None,
//| blendmode: Optional[BlendMode] = BlendMode.Normal,
//| skip_source1_index: Union[int, None] = None,
//| skip_source2_index: Union[int, None] = None,
//| ) -> None:
//| """Alpha blend the two source bitmaps into the destination.
//|
//| It is permitted for the destination bitmap to be one of the two
//| source bitmaps.
//|
//| :param bitmap dest_bitmap: Destination bitmap that will be written into
//| :param bitmap source_bitmap_1: The first source bitmap
//| :param bitmap source_bitmap_2: The second source bitmap
//| :param float factor1: The proportion of bitmap 1 to mix in
//| :param float factor2: The proportion of bitmap 2 to mix in. If specified as `None`, ``1-factor1`` is used. Usually the proportions should sum to 1.
//| :param displayio.Colorspace colorspace: The colorspace of the bitmaps. They must all have the same colorspace. Only the following colorspaces are permitted: ``L8``, ``RGB565``, ``RGB565_SWAPPED``, ``BGR565`` and ``BGR565_SWAPPED``.
//| :param bitmaptools.BlendMode blendmode: The blend mode to use. Default is Normal.
//| :param int skip_source1_index: Bitmap palette or luminance index in source_bitmap_1 that will not be blended, set to None to blend all pixels
//| :param int skip_source2_index: Bitmap palette or luminance index in source_bitmap_2 that will not be blended, set to None to blend all pixels
//|
//| For the L8 colorspace, the bitmaps must have a bits-per-value of 8.
//| For the RGB colorspaces, they must have a bits-per-value of 16."""
//|
//|
static mp_obj_t bitmaptools_alphablend(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
enum {ARG_dest_bitmap, ARG_source_bitmap_1, ARG_source_bitmap_2, ARG_colorspace, ARG_factor_1, ARG_factor_2, ARG_blendmode, ARG_skip_source1_index, ARG_skip_source2_index};
static const mp_arg_t allowed_args[] = {
{MP_QSTR_dest_bitmap, MP_ARG_REQUIRED | MP_ARG_OBJ, {.u_obj = NULL}},
{MP_QSTR_source_bitmap_1, MP_ARG_REQUIRED | MP_ARG_OBJ, {.u_obj = NULL}},
{MP_QSTR_source_bitmap_2, MP_ARG_REQUIRED | MP_ARG_OBJ, {.u_obj = NULL}},
{MP_QSTR_colorspace, MP_ARG_REQUIRED | MP_ARG_OBJ, {.u_obj = NULL}},
{MP_QSTR_factor_1, MP_ARG_OBJ, {.u_obj = MP_ROM_NONE}},
{MP_QSTR_factor_2, MP_ARG_OBJ, {.u_obj = MP_ROM_NONE}},
{MP_QSTR_blendmode, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = (void *)&bitmaptools_blendmode_Normal_obj}},
{MP_QSTR_skip_source1_index, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} },
{MP_QSTR_skip_source2_index, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = mp_const_none} },
};
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_bitmap_t *destination = MP_OBJ_TO_PTR(mp_arg_validate_type(args[ARG_dest_bitmap].u_obj, &displayio_bitmap_type, MP_QSTR_dest_bitmap)); // the destination bitmap
displayio_bitmap_t *source1 = MP_OBJ_TO_PTR(mp_arg_validate_type(args[ARG_source_bitmap_1].u_obj, &displayio_bitmap_type, MP_QSTR_source_bitmap_1)); // the first source bitmap
displayio_bitmap_t *source2 = MP_OBJ_TO_PTR(mp_arg_validate_type(args[ARG_source_bitmap_2].u_obj, &displayio_bitmap_type, MP_QSTR_source_bitmap_2)); // the second source bitmap
mp_float_t factor1 = (args[ARG_factor_1].u_obj == mp_const_none) ? MICROPY_FLOAT_CONST(.5) : mp_obj_get_float(args[ARG_factor_1].u_obj);
mp_float_t factor2 = (args[ARG_factor_2].u_obj == mp_const_none) ? 1 - factor1 : mp_obj_get_float(args[ARG_factor_2].u_obj);
displayio_colorspace_t colorspace = (displayio_colorspace_t)cp_enum_value(&displayio_colorspace_type, args[ARG_colorspace].u_obj, MP_QSTR_colorspace);
bitmaptools_blendmode_t blendmode = (bitmaptools_blendmode_t)cp_enum_value(&bitmaptools_blendmode_type, args[ARG_blendmode].u_obj, MP_QSTR_blendmode);
if (destination->width != source1->width
|| destination->height != source1->height
|| destination->bits_per_value != source1->bits_per_value
|| destination->width != source2->width
|| destination->height != source2->height
|| destination->bits_per_value != source2->bits_per_value
) {
mp_raise_ValueError(MP_ERROR_TEXT("Bitmap size and bits per value must match"));
}
switch (colorspace) {
case DISPLAYIO_COLORSPACE_L8:
if (destination->bits_per_value != 8) {
mp_raise_ValueError(MP_ERROR_TEXT("For L8 colorspace, input bitmap must have 8 bits per pixel"));
}
break;
case DISPLAYIO_COLORSPACE_RGB565:
case DISPLAYIO_COLORSPACE_RGB565_SWAPPED:
case DISPLAYIO_COLORSPACE_BGR565:
case DISPLAYIO_COLORSPACE_BGR565_SWAPPED:
if (destination->bits_per_value != 16) {
mp_raise_ValueError(MP_ERROR_TEXT("For RGB colorspaces, input bitmap must have 16 bits per pixel"));
}
break;
default:
mp_raise_ValueError(MP_ERROR_TEXT("Unsupported colorspace"));
}
uint32_t skip_source1_index;
bool skip_source1_index_none; // flag whether skip_value was None
if (args[ARG_skip_source1_index].u_obj == mp_const_none) {
skip_source1_index = 0;
skip_source1_index_none = true;
} else {
skip_source1_index = mp_obj_get_int(args[ARG_skip_source1_index].u_obj);
skip_source1_index_none = false;
}
uint32_t skip_source2_index;
bool skip_source2_index_none; // flag whether skip_self_value was None
if (args[ARG_skip_source2_index].u_obj == mp_const_none) {
skip_source2_index = 0;
skip_source2_index_none = true;
} else {
skip_source2_index = mp_obj_get_int(args[ARG_skip_source2_index].u_obj);
skip_source2_index_none = false;
}
common_hal_bitmaptools_alphablend(destination, source1, source2, colorspace, factor1, factor2, blendmode, skip_source1_index,
skip_source1_index_none, skip_source2_index, skip_source2_index_none);
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_KW(bitmaptools_alphablend_obj, 0, bitmaptools_alphablend);
//| def replace_color(
//| dest_bitmap: displayio.Bitmap, old_color: int, new_color: int
//| ) -> None:
//| """Replace any pixels of ``old_color`` with ``new_color`` in the ``bitmap``
//|
//| :param displayio.Bitmap bitmap: Bitmap that will be changed
//| :param int old_color: Bitmap palette index that will overwritten
//| :param int new_color: Bitmap palette index that will get put in the bitmap"""
//| ...
//|
//|
static mp_obj_t bitmaptools_obj_replace_color(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
enum {ARG_bitmap, ARG_old_color, ARG_new_color};
static const mp_arg_t allowed_args[] = {
{MP_QSTR_bitmap, MP_ARG_REQUIRED | MP_ARG_OBJ},
{MP_QSTR_old_color, MP_ARG_REQUIRED | MP_ARG_INT},
{MP_QSTR_new_color, 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_bitmap_t *destination = MP_OBJ_TO_PTR(mp_arg_validate_type(args[ARG_bitmap].u_obj, &displayio_bitmap_type, MP_QSTR_bitmap));
uint32_t old_color, new_color, color_depth;
old_color = args[ARG_old_color].u_int;
new_color = args[ARG_new_color].u_int;
color_depth = (1 << destination->bits_per_value);
if (color_depth <= old_color || color_depth <= new_color) {
mp_raise_ValueError_varg(MP_ERROR_TEXT("%q out of range"), MP_QSTR_color);
}
common_hal_bitmaptools_replace_color(destination, old_color, new_color);
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_KW(bitmaptools_replace_color_obj, 0, bitmaptools_obj_replace_color);
//| def fill_region(
//| dest_bitmap: displayio.Bitmap, x1: int, y1: int, x2: int, y2: int, value: int
//| ) -> None:
//| """Draws the color value into the destination bitmap within the
//| rectangular region bounded by (x1,y1) and (x2,y2), exclusive.
//|
//| :param bitmap dest_bitmap: Destination bitmap that will be written into
//| :param int x1: x-pixel position of the first corner of the rectangular fill region
//| :param int y1: y-pixel position of the first corner of the rectangular fill region
//| :param int x2: x-pixel position of the second corner of the rectangular fill region (exclusive)
//| :param int y2: y-pixel position of the second corner of the rectangular fill region (exclusive)
//| :param int value: Bitmap palette index that will be written into the rectangular
//| fill region in the destination bitmap"""
//| ...
//|
//|
static mp_obj_t bitmaptools_obj_fill_region(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
enum {ARG_dest_bitmap, ARGS_X1_Y1_X2_Y2, ARG_value};
static const mp_arg_t allowed_args[] = {
{MP_QSTR_dest_bitmap, MP_ARG_REQUIRED | MP_ARG_OBJ},
ALLOWED_ARGS_X1_Y1_X2_Y2(MP_ARG_REQUIRED, MP_ARG_REQUIRED),
{MP_QSTR_value, 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_bitmap_t *destination = MP_OBJ_TO_PTR(mp_arg_validate_type(args[ARG_dest_bitmap].u_obj, &displayio_bitmap_type, MP_QSTR_dest_bitmap)); // the destination bitmap
uint32_t value, color_depth;
value = args[ARG_value].u_int;
color_depth = (1 << destination->bits_per_value);
if (color_depth <= value) {
mp_raise_ValueError(MP_ERROR_TEXT("out of range of target"));
}
bitmaptools_rect_t lim = bitmaptools_validate_coord_range_pair(&args[ARG_x1], destination->width, destination->height);
common_hal_bitmaptools_fill_region(destination, lim.x1, lim.y1, lim.x2, lim.y2, value);
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_KW(bitmaptools_fill_region_obj, 0, bitmaptools_obj_fill_region);
//| def boundary_fill(
//| dest_bitmap: displayio.Bitmap,
//| x: int,
//| y: int,
//| fill_color_value: int,
//| replaced_color_value: int,
//| ) -> None:
//| """Draws the color value into the destination bitmap enclosed
//| area of pixels of the background_value color. Like "Paint Bucket"
//| fill tool.
//|
//| :param bitmap dest_bitmap: Destination bitmap that will be written into
//| :param int x: x-pixel position of the first pixel to check and fill if needed
//| :param int y: y-pixel position of the first pixel to check and fill if needed
//| :param int fill_color_value: Bitmap palette index that will be written into the
//| enclosed area in the destination bitmap
//| :param int replaced_color_value: Bitmap palette index that will filled with the
//| value color in the enclosed area in the destination bitmap"""
//| ...
//|
//|
static mp_obj_t bitmaptools_obj_boundary_fill(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
enum {ARG_dest_bitmap, ARG_x, ARG_y, ARG_fill_color_value, ARG_replaced_color_value};
static const mp_arg_t allowed_args[] = {
{MP_QSTR_dest_bitmap, MP_ARG_REQUIRED | MP_ARG_OBJ},
{MP_QSTR_x, MP_ARG_REQUIRED | MP_ARG_INT},
{MP_QSTR_y, MP_ARG_REQUIRED | MP_ARG_INT},
{MP_QSTR_fill_color_value, MP_ARG_REQUIRED | MP_ARG_INT},
{MP_QSTR_replaced_color_value, MP_ARG_INT, {.u_int = INT_MAX} },
};
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_bitmap_t *destination = MP_OBJ_TO_PTR(mp_arg_validate_type(args[ARG_dest_bitmap].u_obj, &displayio_bitmap_type, MP_QSTR_dest_bitmap)); // the destination bitmap
uint32_t fill_color_value, color_depth;
fill_color_value = args[ARG_fill_color_value].u_int;
color_depth = (1 << destination->bits_per_value);
if (color_depth <= fill_color_value) {
mp_raise_ValueError(MP_ERROR_TEXT("value out of range of target"));
}
uint32_t replaced_color_value;
replaced_color_value = args[ARG_replaced_color_value].u_int;
if (replaced_color_value != INT_MAX && color_depth <= replaced_color_value) {
mp_raise_ValueError(MP_ERROR_TEXT("background value out of range of target"));
}
int16_t x = args[ARG_x].u_int;
int16_t y = args[ARG_y].u_int;
if (x < 0 || x >= destination->width) {
mp_raise_ValueError(MP_ERROR_TEXT("out of range of target"));
}
if (y < 0 || y >= destination->height) {
mp_raise_ValueError(MP_ERROR_TEXT("out of range of target"));
}
common_hal_bitmaptools_boundary_fill(destination, x, y, fill_color_value, replaced_color_value);
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_KW(bitmaptools_boundary_fill_obj, 0, bitmaptools_obj_boundary_fill);
// requires all 6 arguments
//| def draw_line(
//| dest_bitmap: displayio.Bitmap, x1: int, y1: int, x2: int, y2: int, value: int
//| ) -> None:
//| """Draws a line into a bitmap specified two endpoints (x1,y1) and (x2,y2).
//|
//| :param bitmap dest_bitmap: Destination bitmap that will be written into
//| :param int x1: x-pixel position of the line's first endpoint
//| :param int y1: y-pixel position of the line's first endpoint
//| :param int x2: x-pixel position of the line's second endpoint
//| :param int y2: y-pixel position of the line's second endpoint
//| :param int value: Bitmap palette index that will be written into the
//| line in the destination bitmap"""
//| ...
//|
//|
static mp_obj_t bitmaptools_obj_draw_line(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
enum {ARG_dest_bitmap, ARG_x1, ARG_y1, ARG_x2, ARG_y2, ARG_value};
static const mp_arg_t allowed_args[] = {
{MP_QSTR_dest_bitmap, MP_ARG_REQUIRED | MP_ARG_OBJ},
{MP_QSTR_x1, MP_ARG_REQUIRED | MP_ARG_INT},
{MP_QSTR_y1, MP_ARG_REQUIRED | MP_ARG_INT},
{MP_QSTR_x2, MP_ARG_REQUIRED | MP_ARG_INT},
{MP_QSTR_y2, MP_ARG_REQUIRED | MP_ARG_INT},
{MP_QSTR_value, 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_bitmap_t *destination = MP_OBJ_TO_PTR(mp_arg_validate_type(args[ARG_dest_bitmap].u_obj, &displayio_bitmap_type, MP_QSTR_dest_bitmap)); // the destination bitmap
uint32_t value, color_depth;
value = args[ARG_value].u_int;
color_depth = (1 << destination->bits_per_value);
if (color_depth <= value) {
mp_raise_ValueError(MP_ERROR_TEXT("out of range of target"));
}
int16_t x1 = args[ARG_x1].u_int;
int16_t y1 = args[ARG_y1].u_int;
int16_t x2 = args[ARG_x2].u_int;
int16_t y2 = args[ARG_y2].u_int;
common_hal_bitmaptools_draw_line(destination, x1, y1, x2, y2, value);
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_KW(bitmaptools_draw_line_obj, 0, bitmaptools_obj_draw_line);
// requires all 6 arguments
//| def draw_polygon(
//| dest_bitmap: displayio.Bitmap,
//| xs: ReadableBuffer,
//| ys: ReadableBuffer,
//| value: int,
//| close: Optional[bool] = True,
//| ) -> None:
//| """Draw a polygon connecting points on provided bitmap with provided value
//|
//| :param bitmap dest_bitmap: Destination bitmap that will be written into
//| :param ReadableBuffer xs: x-pixel position of the polygon's vertices
//| :param ReadableBuffer ys: y-pixel position of the polygon's vertices
//| :param int value: Bitmap palette index that will be written into the
//| line in the destination bitmap
//| :param bool close: (Optional) Whether to connect first and last point. (True)
//|
//| .. code-block:: Python
//|
//| import board
//| import displayio
//| import bitmaptools
//|
//| display = board.DISPLAY
//| main_group = displayio.Group()
//| display.root_group = main_group
//|
//| palette = displayio.Palette(3)
//| palette[0] = 0xffffff
//| palette[1] = 0x0000ff
//| palette[2] = 0xff0000
//|
//| bmp = displayio.Bitmap(128,128, 3)
//| bmp.fill(0)
//|
//| xs = bytes([4, 101, 101, 19])
//| ys = bytes([4, 19, 121, 101])
//| bitmaptools.draw_polygon(bmp, xs, ys, 1)
//|
//| xs = bytes([14, 60, 110])
//| ys = bytes([14, 24, 90])
//| bitmaptools.draw_polygon(bmp, xs, ys, 2)
//|
//| tilegrid = displayio.TileGrid(bitmap=bmp, pixel_shader=palette)
//| main_group.append(tilegrid)
//|
//| while True:
//| pass
//| """
//| ...
//|
//|
static mp_obj_t bitmaptools_obj_draw_polygon(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
enum {ARG_dest_bitmap, ARG_xs, ARG_ys, ARG_value, ARG_close};
static const mp_arg_t allowed_args[] = {
{MP_QSTR_dest_bitmap, MP_ARG_REQUIRED | MP_ARG_OBJ},
{MP_QSTR_xs, MP_ARG_REQUIRED | MP_ARG_OBJ},
{MP_QSTR_ys, MP_ARG_REQUIRED | MP_ARG_OBJ},
{MP_QSTR_value, MP_ARG_REQUIRED | MP_ARG_INT},
{MP_QSTR_close, MP_ARG_BOOL, {.u_bool = true}},
};
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_bitmap_t *destination = MP_OBJ_TO_PTR(mp_arg_validate_type(args[ARG_dest_bitmap].u_obj, &displayio_bitmap_type, MP_QSTR_dest_bitmap)); // the destination bitmap
mp_buffer_info_t xs_buf, ys_buf;
mp_get_buffer_raise(args[ARG_xs].u_obj, &xs_buf, MP_BUFFER_READ);
mp_get_buffer_raise(args[ARG_ys].u_obj, &ys_buf, MP_BUFFER_READ);
size_t xs_size = mp_binary_get_size('@', xs_buf.typecode, NULL);
size_t ys_size = mp_binary_get_size('@', ys_buf.typecode, NULL);
size_t xs_len = xs_buf.len / xs_size;
size_t ys_len = ys_buf.len / ys_size;
if (xs_size != ys_size) {
mp_raise_ValueError(MP_ERROR_TEXT("Coordinate arrays types have different sizes"));
}
if (xs_len != ys_len) {
mp_raise_ValueError(MP_ERROR_TEXT("Coordinate arrays have different lengths"));
}
uint32_t value, color_depth;
value = args[ARG_value].u_int;
color_depth = (1 << destination->bits_per_value);
if (color_depth <= value) {
mp_raise_ValueError(MP_ERROR_TEXT("out of range of target"));
}
bool close = args[ARG_close].u_bool;
common_hal_bitmaptools_draw_polygon(destination, xs_buf.buf, ys_buf.buf, xs_len, xs_size, value, close);
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_KW(bitmaptools_draw_polygon_obj, 0, bitmaptools_obj_draw_polygon);
//| def arrayblit(
//| bitmap: displayio.Bitmap,
//| data: ReadableBuffer,
//| x1: int = 0,
//| y1: int = 0,
//| x2: Optional[int] = None,
//| y2: Optional[int] = None,
//| skip_index: Optional[int] = None,
//| ) -> None:
//| """Inserts pixels from ``data`` into the rectangle of width×height pixels with the upper left corner at ``(x,y)``
//|
//| The values from ``data`` are taken modulo the number of color values
//| available in the destination bitmap.
//|
//| If x1 or y1 are not specified, they are taken as 0. If x2 or y2
//| are not specified, or are given as None, they are taken as the width
//| and height of the image.
//|
//| The coordinates affected by the blit are ``x1 <= x < x2`` and ``y1 <= y < y2``.
//|
//| ``data`` must contain at least as many elements as required. If it
//| contains excess elements, they are ignored.
//|
//| The blit takes place by rows, so the first elements of ``data`` go
//| to the first row, the next elements to the next row, and so on.
//|
//| :param displayio.Bitmap bitmap: A writable bitmap
//| :param ReadableBuffer data: Buffer containing the source pixel values
//| :param int x1: The left corner of the area to blit into (inclusive)
//| :param int y1: The top corner of the area to blit into (inclusive)
//| :param int x2: The right of the area to blit into (exclusive)
//| :param int y2: The bottom corner of the area to blit into (exclusive)
//| :param int skip_index: Bitmap palette index in the source that will not be copied,
//| set to None to copy all pixels
//| """
//| ...
//|
//|
static mp_obj_t bitmaptools_arrayblit(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
enum { ARG_bitmap, ARG_data, ARGS_X1_Y1_X2_Y2, ARG_skip_index };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_bitmap, MP_ARG_REQUIRED | MP_ARG_OBJ },
{ MP_QSTR_data, MP_ARG_REQUIRED | MP_ARG_OBJ },
ALLOWED_ARGS_X1_Y1_X2_Y2(0, 0),
{ MP_QSTR_skip_index, MP_ARG_OBJ, {.u_obj = mp_const_none } },
};
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_bitmap_t *bitmap = mp_arg_validate_type(args[ARG_bitmap].u_obj, &displayio_bitmap_type, MP_QSTR_bitmap);
mp_buffer_info_t bufinfo;
mp_get_buffer_raise(args[ARG_data].u_obj, &bufinfo, MP_BUFFER_READ);
bitmaptools_rect_t lim = bitmaptools_validate_coord_range_pair(&args[ARG_x1], bitmap->width, bitmap->height);
size_t output_element_count = (lim.x2 - lim.x1) * (lim.y2 - lim.y1);
size_t element_size = mp_binary_get_size('@', bufinfo.typecode, NULL);
size_t input_element_count = bufinfo.len / element_size;
bool skip_specified = args[ARG_skip_index].u_obj != mp_const_none;
uint32_t skip_index = skip_specified ? mp_obj_get_int(args[ARG_skip_index].u_obj) : 0;
if (input_element_count < output_element_count) {
mp_raise_IndexError(MP_ERROR_TEXT("index out of range"));
}
common_hal_bitmaptools_arrayblit(bitmap, bufinfo.buf, element_size, lim.x1, lim.y1, lim.x2, lim.y2, skip_specified, skip_index);
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_KW(bitmaptools_arrayblit_obj, 0, bitmaptools_arrayblit);
//| def readinto(
//| bitmap: displayio.Bitmap,
//| file: typing.BinaryIO,
//| bits_per_pixel: int,
//| element_size: int = 1,
//| reverse_pixels_in_element: bool = False,
//| swap_bytes_in_element: bool = False,
//| reverse_rows: bool = False,
//| ) -> None:
//| """Reads from a binary file into a bitmap.
//|
//| The file must be positioned so that it consists of ``bitmap.height`` rows of pixel data, where each row is the smallest multiple of ``element_size`` bytes that can hold ``bitmap.width`` pixels.
//|
//| The bytes in an element can be optionally swapped, and the pixels in an element can be reversed. Also, the
//| row loading direction can be reversed, which may be requires for loading certain bitmap files.
//|
//| This function doesn't parse image headers, but is useful to speed up loading of uncompressed image formats such as PCF glyph data.
//|
//| :param displayio.Bitmap bitmap: A writable bitmap
//| :param typing.BinaryIO file: A file opened in binary mode
//| :param int bits_per_pixel: Number of bits per pixel. Values 1, 2, 4, 8, 16, 24, and 32 are supported;
//| :param int element_size: Number of bytes per element. Values of 1, 2, and 4 are supported, except that 24 ``bits_per_pixel`` requires 1 byte per element.
//| :param bool reverse_pixels_in_element: If set, the first pixel in a word is taken from the Most Significant Bits; otherwise, it is taken from the Least Significant Bits.
//| :param bool swap_bytes_in_element: If the ``element_size`` is not 1, then reverse the byte order of each element read.
//| :param bool reverse_rows: Reverse the direction of the row loading (required for some bitmap images).
//| """
//| ...
//|
//|
static mp_obj_t bitmaptools_readinto(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
enum { ARG_bitmap, ARG_file, ARG_bits_per_pixel, ARG_element_size, ARG_reverse_pixels_in_element, ARG_swap_bytes_in_element, ARG_reverse_rows };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_bitmap, MP_ARG_REQUIRED | MP_ARG_OBJ },
{ MP_QSTR_file, MP_ARG_REQUIRED | MP_ARG_OBJ },
{ MP_QSTR_bits_per_pixel, MP_ARG_REQUIRED | MP_ARG_INT },
{ MP_QSTR_element_size, MP_ARG_INT, { .u_int = 1 } },
{ MP_QSTR_reverse_pixels_in_element, MP_ARG_BOOL, { .u_bool = false } },
{ MP_QSTR_swap_bytes_in_element, MP_ARG_BOOL, { .u_bool = false } },
{ MP_QSTR_reverse_rows, MP_ARG_BOOL, { .u_bool = false } },
};
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_bitmap_t *bitmap = mp_arg_validate_type(args[ARG_bitmap].u_obj, &displayio_bitmap_type, MP_QSTR_bitmap);
mp_obj_t *file = args[ARG_file].u_obj;
int element_size = args[ARG_element_size].u_int;
if (element_size != 1 && element_size != 2 && element_size != 4) {
mp_raise_ValueError_varg(MP_ERROR_TEXT("invalid element_size %d, must be, 1, 2, or 4"), element_size);
}
int bits_per_pixel = args[ARG_bits_per_pixel].u_int;
switch (bits_per_pixel) {
case 24:
if (element_size != 1) {
mp_raise_ValueError_varg(MP_ERROR_TEXT("invalid element size %d for bits_per_pixel %d\n"), element_size, bits_per_pixel);
}
break;
case 1:
case 2:
case 4:
case 8:
case 16:
case 32:
break;
default:
mp_raise_ValueError_varg(MP_ERROR_TEXT("invalid bits_per_pixel %d, must be, 1, 2, 4, 8, 16, 24, or 32"), bits_per_pixel);
}
bool reverse_pixels_in_element = args[ARG_reverse_pixels_in_element].u_bool;
bool swap_bytes_in_element = args[ARG_swap_bytes_in_element].u_bool;
bool reverse_rows = args[ARG_reverse_rows].u_bool;
common_hal_bitmaptools_readinto(bitmap, file, element_size, bits_per_pixel, reverse_pixels_in_element, swap_bytes_in_element, reverse_rows);
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_KW(bitmaptools_readinto_obj, 0, bitmaptools_readinto);
//| class DitherAlgorithm:
//| """Identifies the algorithm for dither to use"""
//|
//| Atkinson: "DitherAlgorithm"
//| """The classic Atkinson dither, often associated with the Hypercard esthetic"""
//|
//| FloydStenberg: "DitherAlgorithm"
//| """The Floyd-Stenberg dither"""
//|
//|
MAKE_ENUM_VALUE(bitmaptools_dither_algorithm_type, dither_algorithm, Atkinson, DITHER_ALGORITHM_ATKINSON);
MAKE_ENUM_VALUE(bitmaptools_dither_algorithm_type, dither_algorithm, FloydStenberg, DITHER_ALGORITHM_FLOYD_STENBERG);
MAKE_ENUM_MAP(bitmaptools_dither_algorithm) {
MAKE_ENUM_MAP_ENTRY(dither_algorithm, Atkinson),
MAKE_ENUM_MAP_ENTRY(dither_algorithm, FloydStenberg),
};
static MP_DEFINE_CONST_DICT(bitmaptools_dither_algorithm_locals_dict, bitmaptools_dither_algorithm_locals_table);
MAKE_PRINTER(bitmaptools, bitmaptools_dither_algorithm);
MAKE_ENUM_TYPE(bitmaptools, DitherAlgorithm, bitmaptools_dither_algorithm);
//| def dither(
//| dest_bitmap: displayio.Bitmap,
//| source_bitmapp: displayio.Bitmap,
//| source_colorspace: displayio.Colorspace,
//| algorithm: DitherAlgorithm = DitherAlgorithm.Atkinson,
//| ) -> None:
//| """Convert the input image into a 2-level output image using the given dither algorithm.
//|
//| :param bitmap dest_bitmap: Destination bitmap. It must have a value_count of 2 or 65536. The stored values are 0 and the maximum pixel value.
//| :param bitmap source_bitmap: Source bitmap that contains the graphical region to be dithered. It must have a value_count of 65536.
//| :param colorspace: The colorspace of the image. The supported colorspaces are ``RGB565``, ``BGR565``, ``RGB565_SWAPPED``, and ``BGR565_SWAPPED``
//| :param algorithm: The dither algorithm to use, one of the `DitherAlgorithm` values.
//| """
//| ...
//|
//|
static mp_obj_t bitmaptools_dither(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
enum { ARG_dest_bitmap, ARG_source_bitmap, ARG_source_colorspace, ARG_algorithm };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_dest_bitmap, MP_ARG_REQUIRED | MP_ARG_OBJ },
{ MP_QSTR_source_bitmap, MP_ARG_REQUIRED | MP_ARG_OBJ },
{ MP_QSTR_source_colorspace, MP_ARG_REQUIRED | MP_ARG_OBJ },
{ MP_QSTR_algorithm, MP_ARG_OBJ, { .u_obj = MP_ROM_PTR((void *)&dither_algorithm_Atkinson_obj) } },
};
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_bitmap_t *source_bitmap = mp_arg_validate_type(args[ARG_source_bitmap].u_obj, &displayio_bitmap_type, MP_QSTR_source_bitmap);
displayio_bitmap_t *dest_bitmap = mp_arg_validate_type(args[ARG_dest_bitmap].u_obj, &displayio_bitmap_type, MP_QSTR_dest_bitmap);
bitmaptools_dither_algorithm_t algorithm = cp_enum_value(&bitmaptools_dither_algorithm_type, args[ARG_algorithm].u_obj, MP_QSTR_algorithm);
displayio_colorspace_t colorspace = cp_enum_value(&displayio_colorspace_type, args[ARG_source_colorspace].u_obj, MP_QSTR_source_colorspace);
if (source_bitmap->width != dest_bitmap->width || source_bitmap->height != dest_bitmap->height) {
mp_raise_TypeError(MP_ERROR_TEXT("bitmap sizes must match"));
}
if (dest_bitmap->bits_per_value != 16 && dest_bitmap->bits_per_value != 1) {
mp_raise_TypeError(MP_ERROR_TEXT("source_bitmap must have value_count of 2 or 65536"));
}
switch (colorspace) {
case DISPLAYIO_COLORSPACE_RGB565:
case DISPLAYIO_COLORSPACE_RGB565_SWAPPED:
case DISPLAYIO_COLORSPACE_BGR565:
case DISPLAYIO_COLORSPACE_BGR565_SWAPPED:
if (source_bitmap->bits_per_value != 16) {
mp_raise_TypeError(MP_ERROR_TEXT("source_bitmap must have value_count of 65536"));
}
break;
case DISPLAYIO_COLORSPACE_L8:
if (source_bitmap->bits_per_value != 8) {
mp_raise_TypeError(MP_ERROR_TEXT("source_bitmap must have value_count of 8"));
}
break;
default:
mp_raise_TypeError(MP_ERROR_TEXT("unsupported colorspace for dither"));
}
common_hal_bitmaptools_dither(dest_bitmap, source_bitmap, colorspace, algorithm);
return mp_const_none;
}
MP_DEFINE_CONST_FUN_OBJ_KW(bitmaptools_dither_obj, 0, bitmaptools_dither);
// requires all 5 arguments
//| def draw_circle(
//| dest_bitmap: displayio.Bitmap, x: int, y: int, radius: int, value: int
//| ) -> None:
//| """Draws a circle into a bitmap specified using a center (x0,y0) and radius r.
//|
//| :param bitmap dest_bitmap: Destination bitmap that will be written into
//| :param int x: x-pixel position of the circle's center
//| :param int y: y-pixel position of the circle's center
//| :param int radius: circle's radius
//| :param int value: Bitmap palette index that will be written into the
//| circle in the destination bitmap
//|
//| .. code-block:: Python
//|
//| import board
//| import displayio
//| import bitmaptools
//|
//| display = board.DISPLAY
//| main_group = displayio.Group()
//| display.root_group = main_group
//|
//| palette = displayio.Palette(2)
//| palette[0] = 0xffffff
//| palette[1] = 0x440044
//|
//| bmp = displayio.Bitmap(128,128, 2)
//| bmp.fill(0)
//|
//| bitmaptools.circle(64,64, 32, 1)
//|
//| tilegrid = displayio.TileGrid(bitmap=bmp, pixel_shader=palette)
//| main_group.append(tilegrid)
//|
//| while True:
//| pass
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