Include chu2to3 engine
This commit is contained in:
357
chuniio/chu2to3.c
Normal file
357
chuniio/chu2to3.c
Normal file
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#include <windows.h>
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#include <process.h>
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#include <stdbool.h>
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#include <stdint.h>
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#include <stdio.h>
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#include "chuniio/chu2to3.h"
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#include "util/dprintf.h"
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// Check windows
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#if _WIN32 || _WIN64
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#if _WIN64
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#define ENV64BIT
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#else
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#define ENV32BIT
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#endif
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#endif
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// Check GCC
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#if __GNUC__
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#if __x86_64__ || __ppc64__
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#define ENV64BIT
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#else
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#define ENV32BIT
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#endif
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#endif
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/* chuniio.dll dynamic loading */
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HMODULE hinstLib;
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typedef uint16_t (*chuni_io_get_api_version_t)(void);
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typedef HRESULT (*chuni_io_jvs_init_t)(void);
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typedef void (*chuni_io_jvs_poll_t)(uint8_t*, uint8_t*);
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typedef void (*chuni_io_jvs_read_coin_counter_t)(uint16_t *);
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typedef HRESULT (*chuni_io_slider_init_t)(void);
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typedef void (*chuni_io_slider_set_leds_t)(const uint8_t *);
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typedef void (*chuni_io_slider_start_t)(chuni_io_slider_callback_t);
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typedef void (*chuni_io_slider_stop_t)(void);
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typedef HRESULT (*chuni_io_led_init_t)(void);
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typedef void (*chuni_io_led_set_colors_t)(uint8_t, uint8_t *);
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chuni_io_get_api_version_t _chuni_io_get_api_version;
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chuni_io_jvs_init_t _chuni_io_jvs_init;
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chuni_io_jvs_poll_t _chuni_io_jvs_poll;
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chuni_io_jvs_read_coin_counter_t _chuni_io_jvs_read_coin_counter;
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chuni_io_slider_init_t _chuni_io_slider_init;
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chuni_io_slider_set_leds_t _chuni_io_slider_set_leds;
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chuni_io_slider_start_t _chuni_io_slider_start;
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chuni_io_slider_stop_t _chuni_io_slider_stop;
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chuni_io_led_init_t _chuni_io_led_init;
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chuni_io_led_set_colors_t _chuni_io_led_set_colors;
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/* SHMEM Handling */
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#define BUF_SIZE 1024
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#define SHMEM_WRITE(buf, size) CopyMemory((PVOID)g_pBuf, buf, size)
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#define SHMEM_READ(buf, size) CopyMemory(buf,(PVOID)g_pBuf, size)
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TCHAR g_shmem_name[]=TEXT("Local\\Chu2to3Shmem");
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HANDLE g_hMapFile;
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LPVOID g_pBuf;
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#pragma pack(1)
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typedef struct shared_data_s {
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uint16_t coin_counter;
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uint8_t opbtn;
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uint8_t beams;
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uint16_t version;
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} shared_data_t;
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shared_data_t g_shared_data;
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bool shmem_create()
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{
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g_hMapFile = CreateFileMapping(
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INVALID_HANDLE_VALUE, // use paging file
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NULL, // default security
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PAGE_READWRITE, // read/write access
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0, // maximum object size (high-order DWORD)
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BUF_SIZE, // maximum object size (low-order DWORD)
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g_shmem_name); // name of mapping object
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if (g_hMapFile == NULL)
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{
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dprintf("shmem_create : Could not create file mapping object (%d).\n",
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GetLastError());
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return 0;
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}
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g_pBuf = MapViewOfFile(g_hMapFile, // handle to map object
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FILE_MAP_ALL_ACCESS, // read/write permission
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0,
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0,
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BUF_SIZE);
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if (g_pBuf == NULL)
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{
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dprintf("shmem_create : Could not map view of file (%d).\n",
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GetLastError());
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CloseHandle(g_hMapFile);
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return 0;
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}
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return 1;
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}
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bool shmem_load()
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{
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g_hMapFile = OpenFileMapping(
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FILE_MAP_ALL_ACCESS, // read/write access
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FALSE, // do not inherit the name
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g_shmem_name); // name of mapping object
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if (g_hMapFile == NULL)
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{
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dprintf("shmem_load : Could not open file mapping object (%d).\n", GetLastError());
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return 0;
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}
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g_pBuf = MapViewOfFile(g_hMapFile, // handle to map object
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FILE_MAP_ALL_ACCESS, // read/write permission
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0,
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0,
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BUF_SIZE);
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if (g_pBuf == NULL)
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{
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dprintf("shmem_load : Could not map view of file (%d).\n", GetLastError());
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CloseHandle(g_hMapFile);
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return 0;
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}
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dprintf("shmem_load : shmem loaded succesfully.\n");
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return 1;
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}
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void shmem_free()
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{
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UnmapViewOfFile(g_pBuf);
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CloseHandle(g_hMapFile);
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}
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/* jvs polling thread (to forward info to x64 dll) */
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static HANDLE jvs_poll_thread;
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static bool jvs_poll_stop_flag;
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static unsigned int __stdcall jvs_poll_thread_proc(void *ctx)
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{
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while (1) {
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_chuni_io_jvs_read_coin_counter(&g_shared_data.coin_counter);
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g_shared_data.opbtn = 0;
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_chuni_io_jvs_poll(&g_shared_data.opbtn, &g_shared_data.beams);
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SHMEM_WRITE(&g_shared_data, sizeof(shared_data_t));
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Sleep(1);
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}
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return 0;
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}
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uint16_t chu2to3_load_dll(wchar_t *dllname)
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{
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#if defined(ENV64BIT)
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/* x64 must just open the shmem and do nothing else */
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int errcount = 0;
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while (!shmem_load())
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{
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if (errcount >= 10)
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return -1;
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Sleep(5000);
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errcount++;
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}
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Sleep(1000);
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return S_OK;
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#endif
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/* this is the first function called so let's setup the chuniio forwarding */
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hinstLib = LoadLibraryW(dllname);
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if (hinstLib == NULL) {
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dprintf("ERROR: unable to load %S (error %d)\n",dllname, GetLastError());
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return -1;
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}
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_chuni_io_get_api_version = (chuni_io_get_api_version_t)GetProcAddress(hinstLib, "chuni_io_get_api_version");
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_chuni_io_jvs_init = (chuni_io_jvs_init_t)GetProcAddress(hinstLib, "chuni_io_jvs_init");
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_chuni_io_jvs_poll = (chuni_io_jvs_poll_t)GetProcAddress(hinstLib, "chuni_io_jvs_poll");
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_chuni_io_jvs_read_coin_counter = (chuni_io_jvs_read_coin_counter_t)GetProcAddress(hinstLib, "chuni_io_jvs_read_coin_counter");
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_chuni_io_slider_init = (chuni_io_slider_init_t)GetProcAddress(hinstLib, "chuni_io_slider_init");
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_chuni_io_slider_set_leds = (chuni_io_slider_set_leds_t)GetProcAddress(hinstLib, "chuni_io_slider_set_leds");
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_chuni_io_slider_start = (chuni_io_slider_start_t)GetProcAddress(hinstLib, "chuni_io_slider_start");
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_chuni_io_slider_stop = (chuni_io_slider_stop_t)GetProcAddress(hinstLib, "chuni_io_slider_stop");
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_chuni_io_led_init = (chuni_io_led_init_t)GetProcAddress(hinstLib, "chuni_io_led_init");
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_chuni_io_led_set_colors = (chuni_io_led_set_colors_t)GetProcAddress(hinstLib, "chuni_io_led_set_colors");
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/* x86 has to create the shmem */
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if (!shmem_create())
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{
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return -1;
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}
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return 0;
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}
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/* chuniio exports */
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uint16_t chu2to3_io_get_api_version(void)
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{
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#if defined(ENV64BIT)
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/* This might be called too soon so let's make sure x86 has time to write to the shmem */
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SHMEM_READ(&g_shared_data, sizeof(shared_data_t));
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int errcount = 0;
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while (g_shared_data.version == 0)
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{
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if (errcount >= 3)
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{
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dprintf("CHU2TO3 X64: Couldn't retrieve api version from shmem, assuming 0x0100\n");
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return 0x0100;
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}
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Sleep(5000);
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errcount++;
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SHMEM_READ(&g_shared_data, sizeof(shared_data_t));
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}
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dprintf("CHU2TO3 X64: api version is %04X\n", g_shared_data.version);
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return g_shared_data.version;
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#endif
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if ( _chuni_io_get_api_version == NULL )
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{
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g_shared_data.version = 0x0100;
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}
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else
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{
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g_shared_data.version = _chuni_io_get_api_version();
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}
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dprintf("CHU2TO3: api version is %04X\n", g_shared_data.version);
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SHMEM_WRITE(&g_shared_data, sizeof(shared_data_t));
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return g_shared_data.version;
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}
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HRESULT chu2to3_io_jvs_init(void)
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{
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#if defined(ENV64BIT)
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/* x86 only */
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return S_OK;
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#endif
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_chuni_io_jvs_init();
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/* start jvs poll thread now that jvs_init is done */
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if (jvs_poll_thread != NULL) {
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return S_OK;
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}
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jvs_poll_thread = (HANDLE) _beginthreadex(NULL,
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0,
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jvs_poll_thread_proc,
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NULL,
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0,
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NULL);
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return S_OK;
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}
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void chu2to3_io_jvs_read_coin_counter(uint16_t *out)
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{
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#if defined(ENV32BIT)
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/* x86 can perform the call and update shmem (although this call never happens) */
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_chuni_io_jvs_read_coin_counter(&g_shared_data.coin_counter);
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SHMEM_WRITE(&g_shared_data, sizeof(shared_data_t));
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return;
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#endif
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/* x64 must read value from shmem and update arg */
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SHMEM_READ(&g_shared_data, sizeof(shared_data_t));
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if (out == NULL) {
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return;
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}
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*out = g_shared_data.coin_counter;
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}
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void chu2to3_io_jvs_poll(uint8_t *opbtn, uint8_t *beams)
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{
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#if defined(ENV32BIT)
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/* x86 can perform the call and update shmem (although this call never happens) */
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_chuni_io_jvs_poll(&g_shared_data.opbtn, &g_shared_data.beams);
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SHMEM_WRITE(&g_shared_data, sizeof(shared_data_t));
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return;
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#endif
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/* x64 must read value from shmem and update args */
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SHMEM_READ(&g_shared_data, sizeof(shared_data_t));
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*opbtn = g_shared_data.opbtn;
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*beams = g_shared_data.beams;
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}
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HRESULT chu2to3_io_slider_init(void)
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{
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#if defined(ENV64BIT)
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/* x86 only */
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return S_OK;
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#endif
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return _chuni_io_slider_init();
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}
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void chu2to3_io_slider_start(chuni_io_slider_callback_t callback)
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{
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#if defined(ENV64BIT)
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/* x86 only */
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return;
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#endif
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_chuni_io_slider_start(callback);
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}
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void chu2to3_io_slider_stop(void)
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{
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#if defined(ENV64BIT)
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/* x86 only */
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return;
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#endif
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_chuni_io_slider_stop();
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}
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void chu2to3_io_slider_set_leds(const uint8_t *rgb)
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{
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#if defined(ENV64BIT)
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/* x86 only */
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return;
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#endif
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_chuni_io_slider_set_leds(rgb);
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}
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HRESULT chu2to3_io_led_init(void)
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{
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#if defined(ENV64BIT)
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/* x86 only */
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return S_OK;
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#endif
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if (_chuni_io_led_init != NULL)
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return _chuni_io_led_init();
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return S_OK;
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}
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void chu2to3_io_led_set_colors(uint8_t board, uint8_t *rgb)
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{
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#if defined(ENV64BIT)
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/* x86 only */
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return;
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#endif
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if (_chuni_io_led_set_colors != NULL)
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{
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_chuni_io_led_set_colors(board, rgb);
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}
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}
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