auri.ee
keyboard stuff
1/* Copyright 2021 Nick Brassel (@tzarc)
2 *
3 * This program is free software: you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License as published by
5 * the Free Software Foundation, either version 2 of the License, or
6 * (at your option) any later version.
7 *
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
12 *
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
15 */
16
17#pragma once
18
19#include <stdbool.h>
20#include <stdint.h>
21#include <stdlib.h>
22#include <stdio.h>
23
24#include "qp_internal.h"
25
26////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
27// Stream API
28
29typedef struct qp_stream_t qp_stream_t;
30
31#define qp_stream_get(stream_ptr) (((qp_stream_t *)(stream_ptr))->get((qp_stream_t *)(stream_ptr)))
32#define qp_stream_put(stream_ptr, c) (((qp_stream_t *)(stream_ptr))->put((qp_stream_t *)(stream_ptr), (c)))
33#define qp_stream_seek(stream_ptr, offset, origin) (((qp_stream_t *)(stream_ptr))->seek((qp_stream_t *)(stream_ptr), (offset), (origin)))
34#define qp_stream_tell(stream_ptr) (((qp_stream_t *)(stream_ptr))->tell((qp_stream_t *)(stream_ptr)))
35#define qp_stream_eof(stream_ptr) (((qp_stream_t *)(stream_ptr))->is_eof((qp_stream_t *)(stream_ptr)))
36#define qp_stream_setpos(stream_ptr, offset) qp_stream_seek((stream_ptr), (offset), SEEK_SET)
37#define qp_stream_getpos(stream_ptr) qp_stream_tell((stream_ptr))
38#define qp_stream_read(output_buf, member_size, num_members, stream_ptr) qp_stream_read_impl((output_buf), (member_size), (num_members), (qp_stream_t *)(stream_ptr))
39#define qp_stream_write(input_buf, member_size, num_members, stream_ptr) qp_stream_write_impl((input_buf), (member_size), (num_members), (qp_stream_t *)(stream_ptr))
40
41uint32_t qp_stream_read_impl(void *output_buf, uint32_t member_size, uint32_t num_members, qp_stream_t *stream);
42uint32_t qp_stream_write_impl(const void *input_buf, uint32_t member_size, uint32_t num_members, qp_stream_t *stream);
43
44#define qp_stream_close(stream_ptr) (((qp_stream_t *)(stream_ptr))->close((qp_stream_t *)(stream_ptr)))
45
46#define STREAM_EOF ((int16_t)(-1))
47
48////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
49// Stream definition
50
51typedef struct qp_stream_t {
52 int16_t (*get)(qp_stream_t *stream);
53 bool (*put)(qp_stream_t *stream, uint8_t c);
54 int (*seek)(qp_stream_t *stream, int32_t offset, int origin);
55 int32_t (*tell)(qp_stream_t *stream);
56 bool (*is_eof)(qp_stream_t *stream);
57 void (*close)(qp_stream_t *stream);
58} qp_stream_t;
59
60////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
61// Memory streams
62
63typedef struct qp_memory_stream_t {
64 qp_stream_t base;
65 uint8_t *buffer;
66 int32_t length;
67 int32_t position;
68 bool is_eof;
69} qp_memory_stream_t;
70
71qp_memory_stream_t qp_make_memory_stream(void *buffer, int32_t length);
72
73////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
74// FILE streams
75
76#ifdef QP_STREAM_HAS_FILE_IO
77
78typedef struct qp_file_stream_t {
79 qp_stream_t base;
80 FILE *file;
81} qp_file_stream_t;
82
83qp_file_stream_t qp_make_file_stream(FILE *f);
84
85#endif // QP_STREAM_HAS_FILE_IO