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divaio: Break out Project Diva IO DLL

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This commit is contained in:
Tau
2019-05-03 14:47:09 -04:00
parent 46ab6c3d96
commit 2405526f35
8 changed files with 275 additions and 101 deletions
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89
divahook/slider-hook.c
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@ -1,7 +1,6 @@
#include <windows.h>
#include <assert.h>
#include <process.h>
#include <stdbool.h>
#include <stdint.h>
#include <string.h>
@ -11,6 +10,8 @@
#include "divahook/slider-hook.h"
#include "divaio/divaio.h"
#include "hook/iobuf.h"
#include "hook/iohook.h"
@ -29,16 +30,13 @@ static HRESULT slider_req_auto_scan_start(void);
static HRESULT slider_req_auto_scan_stop(void);
static HRESULT slider_req_set_led(const struct slider_req_set_led *req);
static unsigned int __stdcall slider_thread_proc(void *ctx);
static void slider_res_auto_scan(const uint8_t *pressure);
static CRITICAL_SECTION slider_lock;
static struct uart slider_uart;
static uint8_t slider_written_bytes[520];
static uint8_t slider_readable_bytes[520];
static HANDLE slider_thread;
static bool slider_stop;
void slider_hook_init(void)
{
InitializeCriticalSection(&slider_lock);
@ -175,24 +173,7 @@ static HRESULT slider_req_get_board_info(void)
static HRESULT slider_req_auto_scan_start(void)
{
dprintf("Diva slider: Start slider thread\n");
if (slider_thread != NULL) {
dprintf("Thread is already running\n");
return S_OK;
}
slider_thread = (HANDLE) _beginthreadex(
NULL,
0,
slider_thread_proc,
NULL,
0,
NULL);
if (slider_thread == NULL) {
dprintf("Thread launch failed\n");
}
diva_io_slider_start(slider_res_auto_scan);
/* This message is not acknowledged */
@ -205,19 +186,14 @@ static HRESULT slider_req_auto_scan_stop(void)
dprintf("Diva slider: Stop slider thread\n");
if (slider_thread != NULL) {
slider_stop = true;
LeaveCriticalSection(&slider_lock);
/* IO DLL worker thread might attempt to invoke the callback (which needs
to take slider_lock, which we are currently holding) before noticing that
it needs to shut down. Unlock here so that we don't deadlock in that
situation. */
WaitForSingleObject(slider_thread, INFINITE);
CloseHandle(slider_thread);
slider_thread = NULL;
slider_stop = false;
dprintf("Diva slider: Thread has terminated\n");
EnterCriticalSection(&slider_lock);
}
LeaveCriticalSection(&slider_lock);
diva_io_slider_stop();
EnterCriticalSection(&slider_lock);
resp.sync = SLIDER_FRAME_SYNC;
resp.cmd = SLIDER_CMD_AUTO_SCAN_STOP;
@ -229,44 +205,21 @@ static HRESULT slider_req_auto_scan_stop(void)
static HRESULT slider_req_set_led(const struct slider_req_set_led *req)
{
/* This message is not acknowledged */
diva_io_slider_set_leds(req->payload.rgb);
return S_OK;
}
static unsigned int WINAPI slider_thread_proc(void *ctx)
static void slider_res_auto_scan(const uint8_t *pressure)
{
static const int keys[] = {
'Q', 'W', 'E', 'R', 'U', 'I', 'O', 'P',
};
struct slider_resp_auto_scan resp;
uint8_t pressure;
bool stop;
size_t i;
for (;;) {
resp.hdr.sync = SLIDER_FRAME_SYNC;
resp.hdr.cmd = SLIDER_CMD_AUTO_SCAN;
resp.hdr.nbytes = sizeof(resp.pressure);
resp.hdr.sync = SLIDER_FRAME_SYNC;
resp.hdr.cmd = SLIDER_CMD_AUTO_SCAN;
resp.hdr.nbytes = sizeof(resp.pressure);
memcpy(resp.pressure, pressure, sizeof(resp.pressure));
for (i = 0 ; i < 8 ; i++) {
pressure = GetAsyncKeyState(keys[i]) ? 20 : 0;
memset(&resp.pressure[28 - 4 * i], pressure, 4);
}
EnterCriticalSection(&slider_lock);
stop = slider_stop;
if (!stop) {
slider_frame_encode(&slider_uart.readable, &resp, sizeof(resp));
}
LeaveCriticalSection(&slider_lock);
if (stop) {
return 0;
}
Sleep(1);
}
EnterCriticalSection(&slider_lock);
slider_frame_encode(&slider_uart.readable, &resp, sizeof(resp));
LeaveCriticalSection(&slider_lock);
}