224 lines
7.1 KiB
C
224 lines
7.1 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) 2014 Paul Sokolovsky
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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 <stdio.h>
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#include <assert.h>
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#include <string.h>
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#include "py/runtime.h"
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#include "py/binary.h"
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//| :mod:`eveL` --- low-level BridgeTek EVE bindings
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//| ================================================
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//|
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//| .. module:: eveL
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//| :synopsis: low-level BridgeTek EVE bindings
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//| :platform: SAMD21/SAMD51
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//|
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//| The `eveL` module provides a class EVEL which
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//| contains methods for constructing EVE command
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//| buffers and appending basic graphics commands.
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//|
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typedef struct _mp_obj_EVEL_t {
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mp_obj_base_t base;
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mp_obj_t dest[3];
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size_t n;
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uint8_t buf[512];
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} mp_obj_EVEL_t;
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STATIC const mp_obj_type_t EVEL_type;
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STATIC void _write(mp_obj_EVEL_t *EVEL, mp_obj_t b) {
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EVEL->dest[2] = b;
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mp_call_method_n_kw(1, 0, EVEL->dest);
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}
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STATIC mp_obj_t _register(mp_obj_t self, mp_obj_t o) {
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mp_obj_EVEL_t *EVEL = mp_instance_cast_to_native_base(self, &EVEL_type);
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EVEL->n = 0;
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mp_load_method(o, MP_QSTR_write, EVEL->dest);
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_2(register_obj, _register);
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STATIC mp_obj_t _flush(mp_obj_t self) {
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mp_obj_EVEL_t *EVEL = mp_instance_cast_to_native_base(self, &EVEL_type);
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if (EVEL->n != 0) {
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_write(EVEL, mp_obj_new_bytearray_by_ref(EVEL->n, EVEL->buf));
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EVEL->n = 0;
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}
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_1(flush_obj, _flush);
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STATIC void *append(mp_obj_t self, size_t m) {
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mp_obj_EVEL_t *EVEL = mp_instance_cast_to_native_base(self, &EVEL_type);
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if ((EVEL->n + m) > sizeof(EVEL->buf))
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_flush((mp_obj_t)EVEL);
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uint8_t *r = EVEL->buf + EVEL->n;
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EVEL->n += m;
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return (void*)r;
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}
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STATIC mp_obj_t _cc(mp_obj_t self, mp_obj_t b) {
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mp_obj_EVEL_t *EVEL = mp_instance_cast_to_native_base(self, &EVEL_type);
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mp_buffer_info_t buffer_info;
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mp_get_buffer_raise(b, &buffer_info, MP_BUFFER_READ);
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if (buffer_info.len <= sizeof(EVEL->buf)) {
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uint8_t *p = (uint8_t*)append(EVEL, buffer_info.len);
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// memcpy(p, buffer_info.buf, buffer_info.len);
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uint8_t *s = buffer_info.buf;
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for (size_t i = 0; i < buffer_info.len; i++)
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*p++ = *s++;
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} else {
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_flush(self);
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_write(EVEL, b);
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}
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_2(cc_obj, _cc);
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#define C4(self, u) (*(uint32_t*)append((self), sizeof(uint32_t)) = (u))
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#include "modeveL-gen.h"
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// Hand-written functions {
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STATIC mp_obj_t _cmd0(mp_obj_t self, mp_obj_t n) {
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C4(self, (0xffffff00 | mp_obj_get_int_truncated(n)));
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_2(cmd0_obj, _cmd0);
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STATIC mp_obj_t _vertex2f(mp_obj_t self , mp_obj_t a0, mp_obj_t a1) {
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int16_t x = (int16_t)(16 * mp_obj_get_float(a0));
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int16_t y = (int16_t)(16 * mp_obj_get_float(a1));
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C4(self, (0x40000000 | ((x & 32767) << 15) | (y & 32767)));
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_3(vertex2f_obj, _vertex2f);
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STATIC mp_obj_t _cmd(size_t n_args, const mp_obj_t *args) {
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mp_obj_t self = args[0];
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mp_obj_t num = args[1];
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mp_buffer_info_t fmt;
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mp_get_buffer_raise(args[2], &fmt, MP_BUFFER_READ);
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size_t len;
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mp_obj_t *items;
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mp_obj_tuple_get(args[3], &len, &items);
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// Count how many 32-bit words required
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size_t n = 0;
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for (size_t i = 0; i < fmt.len; n++) {
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switch (((char*)fmt.buf)[i]) {
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case 'I':
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case 'i':
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i += 1;
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break;
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case 'H':
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case 'h':
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i += 2;
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break;
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default:
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break;
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}
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}
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uint32_t *p = (uint32_t*)append(self, sizeof(uint32_t) * (1 + n));
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*p++ = 0xffffff00 | mp_obj_get_int_truncated(num);
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mp_obj_t *a = items;
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uint32_t lo;
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for (size_t i = 0; i < fmt.len; ) {
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switch (((char*)fmt.buf)[i]) {
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case 'I':
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case 'i':
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*p++ = mp_obj_get_int_truncated(*a++);
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i += 1;
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break;
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case 'H':
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case 'h':
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lo = mp_obj_get_int_truncated(*a++) & 0xffff;
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*p++ = lo | (mp_obj_get_int_truncated(*a++) << 16);
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i += 2;
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break;
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default:
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break;
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}
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}
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return mp_const_none;
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}
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STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(cmd_obj, 4, 4, _cmd);
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STATIC const mp_rom_map_elem_t EVEL_locals_dict_table[] = {
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{ MP_ROM_QSTR(MP_QSTR_register), MP_ROM_PTR(®ister_obj) },
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{ MP_ROM_QSTR(MP_QSTR_cc), MP_ROM_PTR(&cc_obj) },
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{ MP_ROM_QSTR(MP_QSTR_flush), MP_ROM_PTR(&flush_obj) },
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{ MP_ROM_QSTR(MP_QSTR_Vertex2f), MP_ROM_PTR(&vertex2f_obj) },
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{ MP_ROM_QSTR(MP_QSTR_cmd), MP_ROM_PTR(&cmd_obj) },
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{ MP_ROM_QSTR(MP_QSTR_cmd0), MP_ROM_PTR(&cmd0_obj) },
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ROM_DECLS
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};
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STATIC MP_DEFINE_CONST_DICT(EVEL_locals_dict, EVEL_locals_dict_table);
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STATIC void EVEL_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
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(void)self_in;
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(void)kind;
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mp_printf(print, "<EVEL>");
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}
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STATIC mp_obj_t EVEL_make_new(const mp_obj_type_t *type, size_t n_args, const mp_obj_t *args, mp_map_t *kw_args) {
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// mp_arg_check_num(n_args, kw_args, 1, 1, false);
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mp_obj_EVEL_t *o = m_new_obj(mp_obj_EVEL_t);
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mp_printf(&mp_plat_print, "EVEL %p make_new\n", o);
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o->base.type = &EVEL_type;
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return MP_OBJ_FROM_PTR(o);
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}
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STATIC const mp_obj_type_t EVEL_type = {
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{ &mp_type_type },
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// Save on qstr's, reuse same as for module
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.name = MP_QSTR_EVEL,
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.print = EVEL_print,
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.make_new = EVEL_make_new,
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// .attr = EVEL_attr,
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.locals_dict = (void*)&EVEL_locals_dict,
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};
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STATIC const mp_rom_map_elem_t mp_module_eveL_globals_table[] = {
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{ MP_ROM_QSTR(MP_QSTR___name__), MP_ROM_QSTR(MP_QSTR_eveL) },
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{ MP_ROM_QSTR(MP_QSTR_EVEL), MP_OBJ_FROM_PTR(&EVEL_type) },
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};
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STATIC MP_DEFINE_CONST_DICT(mp_module_eveL_globals, mp_module_eveL_globals_table);
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const mp_obj_module_t eveL_module = {
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.base = { &mp_type_module },
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.globals = (mp_obj_dict_t*)&mp_module_eveL_globals,
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};
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