1 files changed, 152 insertions, 0 deletions
diff --git a/circuitpython/shared-bindings/displayio/ColorConverter.c b/circuitpython/shared-bindings/displayio/ColorConverter.c
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+++ b/circuitpython/shared-bindings/displayio/ColorConverter.c
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+/*
+ * 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/ColorConverter.h"
+
+#include <stdint.h>
+
+#include "shared/runtime/context_manager_helpers.h"
+#include "py/binary.h"
+#include "py/enum.h"
+#include "py/objproperty.h"
+#include "py/runtime.h"
+#include "shared-bindings/util.h"
+#include "supervisor/shared/translate.h"
+
+//| class ColorConverter:
+//|     """Converts one color format to another."""
+//|
+//|     def __init__(self, *, input_colorspace: Colorspace=Colorspace.RGB888, dither: bool = False) -> None:
+//|         """Create a ColorConverter object to convert color formats.
+//|
+//|         :param Colorspace colorspace: The source colorspace, one of the Colorspace constants
+//|         :param bool dither: Adds random noise to dither the output image"""
+//|         ...
+//|
+
+STATIC mp_obj_t displayio_colorconverter_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *all_args) {
+    enum { ARG_dither, ARG_input_colorspace };
+
+    static const mp_arg_t allowed_args[] = {
+        { MP_QSTR_dither, MP_ARG_KW_ONLY | MP_ARG_BOOL, {.u_bool = false} },
+        { MP_QSTR_input_colorspace, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_obj = (void *)&displayio_colorspace_RGB888_obj} },
+    };
+    mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
+    mp_arg_parse_all_kw_array(n_args, n_kw, all_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
+
+    displayio_colorconverter_t *self = m_new_obj(displayio_colorconverter_t);
+    self->base.type = &displayio_colorconverter_type;
+
+    common_hal_displayio_colorconverter_construct(self, args[ARG_dither].u_bool, (displayio_colorspace_t)cp_enum_value(&displayio_colorspace_type, args[ARG_input_colorspace].u_obj));
+
+    return MP_OBJ_FROM_PTR(self);
+}
+
+//|     def convert(self, color: int) -> int:
+//|         """Converts the given color to RGB565 according to the Colorspace"""
+//|         ...
+//|
+STATIC mp_obj_t displayio_colorconverter_obj_convert(mp_obj_t self_in, mp_obj_t color_obj) {
+    displayio_colorconverter_t *self = MP_OBJ_TO_PTR(self_in);
+
+    mp_int_t color;
+    if (!mp_obj_get_int_maybe(color_obj, &color)) {
+        mp_raise_ValueError(translate("color should be an int"));
+    }
+    _displayio_colorspace_t colorspace;
+    colorspace.depth = 16;
+    uint32_t output_color;
+    common_hal_displayio_colorconverter_convert(self, &colorspace, color, &output_color);
+    return MP_OBJ_NEW_SMALL_INT(output_color);
+}
+MP_DEFINE_CONST_FUN_OBJ_2(displayio_colorconverter_convert_obj, displayio_colorconverter_obj_convert);
+
+//|     dither: bool
+//|     """When `True` the ColorConverter dithers the output by adding random noise when
+//|     truncating to display bitdepth"""
+//|
+STATIC mp_obj_t displayio_colorconverter_obj_get_dither(mp_obj_t self_in) {
+    displayio_colorconverter_t *self = MP_OBJ_TO_PTR(self_in);
+    return mp_obj_new_bool(common_hal_displayio_colorconverter_get_dither(self));
+}
+MP_DEFINE_CONST_FUN_OBJ_1(displayio_colorconverter_get_dither_obj, displayio_colorconverter_obj_get_dither);
+
+STATIC mp_obj_t displayio_colorconverter_obj_set_dither(mp_obj_t self_in, mp_obj_t dither) {
+    displayio_colorconverter_t *self = MP_OBJ_TO_PTR(self_in);
+
+    common_hal_displayio_colorconverter_set_dither(self, mp_obj_is_true(dither));
+
+    return mp_const_none;
+}
+MP_DEFINE_CONST_FUN_OBJ_2(displayio_colorconverter_set_dither_obj, displayio_colorconverter_obj_set_dither);
+
+MP_PROPERTY_GETSET(displayio_colorconverter_dither_obj,
+    (mp_obj_t)&displayio_colorconverter_get_dither_obj,
+    (mp_obj_t)&displayio_colorconverter_set_dither_obj);
+
+//|     def make_transparent(self, color: int) -> None:
+//|         """Set the transparent color or index for the ColorConverter. This will
+//|         raise an Exception if there is already a selected transparent index.
+//|
+//|         :param int color: The color to be transparent"""
+//|
+STATIC mp_obj_t displayio_colorconverter_make_transparent(mp_obj_t self_in, mp_obj_t transparent_color_obj) {
+    displayio_colorconverter_t *self = MP_OBJ_TO_PTR(self_in);
+
+    mp_int_t transparent_color = mp_obj_get_int(transparent_color_obj);
+    common_hal_displayio_colorconverter_make_transparent(self, transparent_color);
+    return mp_const_none;
+}
+MP_DEFINE_CONST_FUN_OBJ_2(displayio_colorconverter_make_transparent_obj, displayio_colorconverter_make_transparent);
+
+//|     def make_opaque(self, color: int) -> None:
+//|         """Make the ColorConverter be opaque and have no transparent pixels.
+//|
+//|         :param int color: [IGNORED] Use any value"""
+//|
+STATIC mp_obj_t displayio_colorconverter_make_opaque(mp_obj_t self_in, mp_obj_t transparent_color_obj) {
+    displayio_colorconverter_t *self = MP_OBJ_TO_PTR(self_in);
+
+    mp_int_t transparent_color = mp_obj_get_int(transparent_color_obj);
+    common_hal_displayio_colorconverter_make_opaque(self, transparent_color);
+    return mp_const_none;
+}
+MP_DEFINE_CONST_FUN_OBJ_2(displayio_colorconverter_make_opaque_obj, displayio_colorconverter_make_opaque);
+
+STATIC const mp_rom_map_elem_t displayio_colorconverter_locals_dict_table[] = {
+    { MP_ROM_QSTR(MP_QSTR_convert), MP_ROM_PTR(&displayio_colorconverter_convert_obj) },
+    { MP_ROM_QSTR(MP_QSTR_dither), MP_ROM_PTR(&displayio_colorconverter_dither_obj) },
+    { MP_ROM_QSTR(MP_QSTR_make_transparent), MP_ROM_PTR(&displayio_colorconverter_make_transparent_obj) },
+    { MP_ROM_QSTR(MP_QSTR_make_opaque), MP_ROM_PTR(&displayio_colorconverter_make_opaque_obj) },
+};
+STATIC MP_DEFINE_CONST_DICT(displayio_colorconverter_locals_dict, displayio_colorconverter_locals_dict_table);
+
+const mp_obj_type_t displayio_colorconverter_type = {
+    { &mp_type_type },
+    .name = MP_QSTR_ColorConverter,
+    .make_new = displayio_colorconverter_make_new,
+    .locals_dict = (mp_obj_dict_t *)&displayio_colorconverter_locals_dict,
+};