114 lines
4.6 KiB
C
114 lines
4.6 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2017 Radomir Dopieralski
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "__init__.h"
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#include "py/mperrno.h"
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#include "py/runtime.h"
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#include "shared-bindings/busio/SPI.h"
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#include "shared-bindings/displayio/Display.h"
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#include "shared-module/_stage/__init__.h"
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#include "shared-module/displayio/display_core.h"
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#include "Layer.h"
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#include "Text.h"
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//| """C-level helpers for animation of sprites on a stage
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//|
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//| The `_stage` module contains native code to speed-up the ```stage`` Library
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//| <https://github.com/python-ugame/circuitpython-stage>`_."""
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//|
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//| def render(x0: int, y0: int, x1: int, y1: int, layers: List[Layer], buffer: WriteableBuffer, display: displayio.Display, scale: int, background: int) -> None:
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//| """Render and send to the display a fragment of the screen.
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//|
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//| :param int x0: Left edge of the fragment.
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//| :param int y0: Top edge of the fragment.
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//| :param int x1: Right edge of the fragment.
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//| :param int y1: Bottom edge of the fragment.
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//| :param layers: A list of the :py:class:`~_stage.Layer` objects.
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//| :type layers: list[Layer]
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//| :param ~_typing.WriteableBuffer buffer: A buffer to use for rendering.
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//| :param ~displayio.Display display: The display to use.
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//| :param int scale: How many times should the image be scaled up.
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//| :param int background: What color to display when nothing is there.
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//|
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//| There are also no sanity checks, outside of the basic overflow
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//| checking. The caller is responsible for making the passed parameters
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//| valid.
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//|
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//| This function is intended for internal use in the ``stage`` library
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//| and all the necessary checks are performed there."""
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//|
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STATIC mp_obj_t stage_render(size_t n_args, const mp_obj_t *args) {
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uint16_t x0 = mp_obj_get_int(args[0]);
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uint16_t y0 = mp_obj_get_int(args[1]);
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uint16_t x1 = mp_obj_get_int(args[2]);
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uint16_t y1 = mp_obj_get_int(args[3]);
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size_t layers_size = 0;
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mp_obj_t *layers;
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mp_obj_get_array(args[4], &layers_size, &layers);
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mp_buffer_info_t bufinfo;
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mp_get_buffer_raise(args[5], &bufinfo, MP_BUFFER_WRITE);
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uint16_t *buffer = bufinfo.buf;
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size_t buffer_size = bufinfo.len / 2; // 16-bit indexing
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mp_obj_t native_display = mp_obj_cast_to_native_base(args[6],
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&displayio_display_type);
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if (!mp_obj_is_type(native_display, &displayio_display_type)) {
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mp_raise_TypeError(translate("argument num/types mismatch"));
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}
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displayio_display_obj_t *display = MP_OBJ_TO_PTR(native_display);
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uint8_t scale = 1;
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if (n_args > 7) {
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scale = mp_obj_get_int(args[7]);
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}
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uint16_t background = 0;
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if (n_args > 8) {
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background = mp_obj_get_int(args[8]);
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}
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render_stage(x0, y0, x1, y1, layers, layers_size, buffer, buffer_size,
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display, scale, background);
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(stage_render_obj, 7, 8, stage_render);
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STATIC const mp_rom_map_elem_t stage_module_globals_table[] = {
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{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR__stage) },
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{ MP_ROM_QSTR(MP_QSTR_Layer), MP_ROM_PTR(&mp_type_layer) },
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{ MP_ROM_QSTR(MP_QSTR_Text), MP_ROM_PTR(&mp_type_text) },
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{ MP_ROM_QSTR(MP_QSTR_render), MP_ROM_PTR(&stage_render_obj) },
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};
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STATIC MP_DEFINE_CONST_DICT(stage_module_globals, stage_module_globals_table);
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const mp_obj_module_t stage_module = {
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.base = { &mp_type_module },
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.globals = (mp_obj_dict_t *)&stage_module_globals,
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};
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