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!27 Support header-only

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idea4good
2020-01-22 11:03:29 +08:00
parent 84199d4733
commit e16f90cccc
56 changed files with 7877 additions and 8361 deletions
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103
workspace/widgets_include/wave_buffer.h
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@@ -1,21 +1,110 @@
#ifndef GUILITE_WIDGETS_INCLUDE_WAVE_BUFFER_H
#define GUILITE_WIDGETS_INCLUDE_WAVE_BUFFER_H
#include "../core_include/api.h"
#include <string.h>
#include <stdio.h>
#define WAVE_BUFFER_LEN 1024
#define WAVE_READ_CACHE_LEN 8
#define BUFFER_EMPTY -1111
#define BUFFER_FULL -2222;
#define MAX(a,b) (((a)>(b))?(a):(b))
#define MIN(a,b) (((a)<(b))?(a):(b))
class c_wave_buffer
{
public:
c_wave_buffer();
int write_wave_data(short data);
int read_wave_data_by_frame(short &max, short &min, short frame_len, unsigned int sequence, short offset);
void reset();
void clear_data();
short get_cnt();
c_wave_buffer()
{
m_head = m_tail = m_min_old = m_max_old =
m_min_older = m_max_older = m_last_data = m_read_cache_sum = m_refresh_sequence = 0;
memset(m_wave_buf, 0, sizeof(m_wave_buf));
memset(m_read_cache_min, 0, sizeof(m_read_cache_min));
memset(m_read_cache_mid, 0, sizeof(m_read_cache_mid));
memset(m_read_cache_max, 0, sizeof(m_read_cache_max));
}
int write_wave_data(short data)
{
if ((m_tail + 1) % WAVE_BUFFER_LEN == m_head)
{//full
//log_out("wave buf full\n");
return BUFFER_FULL;
}
m_wave_buf[m_tail] = data;
m_tail = (m_tail + 1) % WAVE_BUFFER_LEN;
return 1;
}
int read_wave_data_by_frame(short &max, short &min, short frame_len, unsigned int sequence, short offset)
{
if (m_refresh_sequence != sequence)
{
m_refresh_sequence = sequence;
m_read_cache_sum = 0;
}
else if (offset < m_read_cache_sum)//(m_refresh_sequence == sequence && offset < m_fb_sum)
{
max = m_read_cache_max[offset];
min = m_read_cache_min[offset];
return m_read_cache_mid[offset];
}
m_read_cache_sum++;
ASSERT(m_read_cache_sum <= WAVE_READ_CACHE_LEN);
int i, data;
int tmp_min = m_last_data;
int tmp_max = m_last_data;
int mid = (m_min_old + m_max_old) >> 1;
i = 0;
while (i++ < frame_len)
{
data = read_data();
if (BUFFER_EMPTY == data)
{
break;
}
m_last_data = data;
if (data < tmp_min) { tmp_min = data; }
if (data > tmp_max) { tmp_max = data; }
}
min = m_read_cache_min[offset] = MIN(m_min_old, MIN(tmp_min, m_min_older));
max = m_read_cache_max[offset] = MAX(m_max_old, MAX(tmp_max, m_max_older));
m_min_older = m_min_old;
m_max_older = m_max_old;
m_min_old = tmp_min;
m_max_old = tmp_max;
return (m_read_cache_mid[offset] = mid);
}
void reset()
{
m_head = m_tail;
}
void clear_data()
{
m_head = m_tail = 0;
memset(m_wave_buf, 0, sizeof(m_wave_buf));
}
short get_cnt()
{
return (m_tail >= m_head) ? (m_tail - m_head) : (m_tail - m_head + WAVE_BUFFER_LEN);
}
private:
int read_data();
int read_data()
{
if (m_head == m_tail)
{//empty
//log_out("wave buf empty\n");
return BUFFER_EMPTY;
}
int ret = m_wave_buf[m_head];
m_head = (m_head + 1) % WAVE_BUFFER_LEN;
return ret;
}
short m_wave_buf[WAVE_BUFFER_LEN];
short m_head;
short m_tail;