50 lines
2.1 KiB
C
50 lines
2.1 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/ColorConverter.h"
|
|
|
|
void common_hal_displayio_colorconverter_construct(displayio_colorconverter_t* self) {
|
|
}
|
|
|
|
bool common_hal_displayio_colorconverter_convert(displayio_colorconverter_t *self, uint32_t input_color, uint16_t* output_color) {
|
|
// TODO(tannewt): Validate the color input against the input format.
|
|
uint32_t r5 = (input_color >> 19);
|
|
uint32_t g6 = (input_color >> 10) & 0x3f;
|
|
uint32_t b5 = (input_color >> 3) & 0x1f;
|
|
uint32_t packed = r5 << 11 | g6 << 5 | b5;
|
|
// swap bytes
|
|
*output_color = __builtin_bswap16(packed);
|
|
return true;
|
|
}
|
|
|
|
// Currently no refresh logic is needed for a ColorConverter.
|
|
bool displayio_colorconverter_needs_refresh(displayio_colorconverter_t *self) {
|
|
return false;
|
|
}
|
|
|
|
void displayio_colorconverter_finish_refresh(displayio_colorconverter_t *self) {
|
|
}
|