segatools/chuniio/ledoutput.c

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3.5 KiB
C
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#include <windows.h>
#include <process.h>
#include <stdbool.h>
#include <stdint.h>
#include "chuniio/config.h"
#include "chuniio/leddata.h"
#include "chuniio/ledoutput.h"
#include "chuniio/pipeimpl.h"
#include "chuniio/serialimpl.h"
static struct _chuni_led_data_buf_t led_unescaped_buf[LED_BOARDS_TOTAL];
static struct _chuni_led_data_buf_t led_escaped_buf[LED_BOARDS_TOTAL];
static bool led_output_is_init = false;
static struct chuni_io_config* config;
static bool any_outputs_enabled;
HANDLE led_init_mutex;
HRESULT led_output_init(struct chuni_io_config* const cfg)
{
DWORD dwWaitResult = WaitForSingleObject(led_init_mutex, INFINITE);
if (dwWaitResult == WAIT_FAILED)
{
return HRESULT_FROM_WIN32(GetLastError());
// return 1;
}
else if (dwWaitResult != WAIT_OBJECT_0)
{
return E_FAIL;
// return 1;
}
if (!led_output_is_init)
{
config = cfg;
// Setup the framing bytes for the packets
for (int i = 0; i < LED_BOARDS_TOTAL; i++) {
led_unescaped_buf[i].framing = LED_PACKET_FRAMING;
led_unescaped_buf[i].board = i;
led_unescaped_buf[i].data_len = chuni_led_board_data_lens[i];
led_escaped_buf[i].framing = LED_PACKET_FRAMING;
led_escaped_buf[i].board = i;
led_escaped_buf[i].data_len = chuni_led_board_data_lens[i];
}
any_outputs_enabled = config->led_output_pipe || config->slider_led_output_pipe
|| config->led_output_serial || config->slider_led_output_serial;
if (config->led_output_pipe || config->slider_led_output_pipe)
{
led_pipe_init(); // don't really care about errors here tbh
}
if (config->led_output_serial || config->slider_led_output_serial)
{
led_serial_init(config->led_serial_port, config->led_serial_baud);
}
}
led_output_is_init = true;
ReleaseMutex(led_init_mutex);
return S_OK;
// return 0;
}
struct _chuni_led_data_buf_t* escape_led_data(struct _chuni_led_data_buf_t* unescaped)
{
struct _chuni_led_data_buf_t* out_struct = &led_escaped_buf[unescaped->board];
byte* in_buf = unescaped->data;
byte* out_buf = out_struct->data;
int i = 0;
int o = 0;
while (i < unescaped->data_len)
{
byte b = in_buf[i++];
if (b == LED_PACKET_FRAMING || b == LED_PACKET_ESCAPE)
{
out_buf[o++] = LED_PACKET_ESCAPE;
b--;
}
out_buf[o++] = b;
}
out_struct->data_len = o;
return out_struct;
}
void led_output_update(uint8_t board, const byte* rgb)
{
if (board < 0 || board > 2 || !any_outputs_enabled)
{
return;
}
memcpy(led_unescaped_buf[board].data, rgb, led_unescaped_buf[board].data_len);
struct _chuni_led_data_buf_t* escaped_data = escape_led_data(&led_unescaped_buf[board]);
if (board < 2)
{
// billboard
if (config->led_output_pipe)
{
led_pipe_update(escaped_data);
}
if (config->led_output_serial)
{
led_serial_update(escaped_data);
}
}
else
{
// slider
if (config->slider_led_output_pipe)
{
led_pipe_update(escaped_data);
}
if (config->slider_led_output_serial)
{
led_serial_update(escaped_data);
}
}
}