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https://github.com/CrazyRedMachine/popnhax.git
synced 2024-11-27 23:40:50 +01:00
disable usbPadReadLast and include 5ms debounce
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fc11cceeb6
commit
17e536a090
@ -1908,14 +1908,27 @@ static bool patch_add_to_base_offset(int8_t delta) {
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bool g_enhanced_poll_ready = false;
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int (*usbPadRead)(uint32_t*);
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int (*usbPadReadLast)(unsigned char*);
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#if DEBUG >=2
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FILE *debug_fp;
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#endif
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uint32_t g_last_button_state = 0;
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int32_t g_button_state[9] = {0};
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static unsigned int __stdcall enhanced_polling_proc(void *ctx)
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{
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#if DEBUG >=2
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debug_fp = fopen("polling.log", "w");
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#endif
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HMODULE hinstLib = GetModuleHandleA("ezusb.dll");
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usbPadRead = (int(*)(uint32_t*))GetProcAddress(hinstLib, "?usbPadRead@@YAHPAK@Z");
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static uint8_t button_debounce[9] = {0};
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/*
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usbPadReadLast = (int(*)(unsigned char*)) GetProcAddress(hinstLib, "?usbPadReadLast@@YAHPAE@Z");
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uint8_t history[40] = {0};
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*/
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for (int i=0; i<9; i++)
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{
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g_button_state[i] = -1;
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@ -1926,44 +1939,66 @@ static unsigned int __stdcall enhanced_polling_proc(void *ctx)
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Sleep(500);
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}
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#if DEBUG == 1
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uint32_t curr_time = 0;
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#if DEBUG >= 1
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uint16_t count = 0;
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uint32_t currtime = timeGetTime();
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uint32_t count_time = timeGetTime();
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#endif
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while (g_enhanced_poll_ready)
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{
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#if DEBUG == 1
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curr_time = timeGetTime();
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#if DEBUG >= 1
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if (count == 0)
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{
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currtime = timeGetTime();
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count_time = timeGetTime();
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}
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#endif
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uint32_t pad_bits;
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usbPadRead(&pad_bits);
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g_last_button_state = pad_bits;
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unsigned int buttonState = 0;
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buttonState |= (pad_bits >> 8) & 0x1FF;
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//usbPadReadLast(history);
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#if DEBUG == 2
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fprintf(stderr, "history : ");
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for (int i = 0; i<40; i++)
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{
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fprintf(stderr, "%02x ", history[i]);
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if (!((i+1)%16)) fprintf(stderr, "\n");
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}
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fprintf(stderr, "--------------\n");
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#endif
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int ret = usbPadRead(&pad_bits);
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if (ret == 0)
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g_last_button_state = pad_bits;
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unsigned int buttonState = (g_last_button_state >> 8) & 0x1FF;
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for (int i = 0; i < 9; i++)
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{
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if ( ((buttonState >> i)&1) )
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{
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if (g_button_state[i] == -1)
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{
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g_button_state[i] = timeGetTime();
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g_button_state[i] = curr_time;
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}
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button_debounce[i] = 5; // 5ms of debounce on release (since we're forced to stub usbPadReadLast)
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}
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else
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g_button_state[i] = -1;
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{
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if (button_debounce[i]>0)
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{
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button_debounce[i]--;
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}
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if (button_debounce[i] == 0)
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g_button_state[i] = -1;
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}
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}
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#if DEBUG == 1
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#if DEBUG >= 1
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count++;
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if (count == 100)
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if (count == 1000)
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{
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fprintf(stderr, "did 100 iterations in %ld milliseconds\n", timeGetTime() - currtime);
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fprintf(debug_fp, "did 1000 iterations in %ld milliseconds\n", timeGetTime() - count_time);
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count = 0;
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}
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fflush(debug_fp);
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#endif
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Sleep(1);
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}
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@ -1975,15 +2010,17 @@ uint32_t buttonGetMillis(uint8_t button)
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if (g_button_state[button] == -1)
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return 0;
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uint32_t but = g_button_state[button]; //prevent race
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uint32_t but = g_button_state[button];
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uint32_t curr = timeGetTime();
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if (but <= curr)
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{
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#if DEBUG == 1
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fprintf(stderr, "button %d has been pressed for %d millis already, adjust!\n", button, curr-but);
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uint32_t res = curr - but;
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#if DEBUG >= 2
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/*enabling debug here will mess up timing eval */
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fprintf(debug_fp, "%ld: buttonGetMillis: button %d : %d millis\n", timeGetTime(), button, res);
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fflush(debug_fp);
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#endif
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return curr - but;
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return res;
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}
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return 0;
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@ -1992,15 +2029,14 @@ uint32_t buttonGetMillis(uint8_t button)
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uint32_t usbPadReadHook_addr = 0;
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int usbPadReadHook(uint32_t *pad_bits)
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{
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__asm("nop\n");
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__asm("nop\n");
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/* thread is not running, return real call */
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if (!g_enhanced_poll_ready)
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return usbPadRead(pad_bits);
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g_enhanced_poll_ready = true; // ioboard is ready, game can now poll inputs like crazy
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/* return last known input */
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*pad_bits = g_last_button_state;
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#if DEBUG >= 2
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fprintf(debug_fp, "%ld: usbPadReadHook: %x\n", timeGetTime(), *pad_bits);
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fflush(debug_fp);
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#endif
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return 0;
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}
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@ -2008,7 +2044,6 @@ uint8_t g_poll_index = 0;
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uint32_t g_poll_offset = 0;
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void (*real_enhanced_poll)();
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void patch_enhanced_poll() {
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g_enhanced_poll_ready = true; //thread can now start polling inputs like crazy
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/* eax contains button being checked [0-8] */
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/* esi contains delta about to be evaluated */
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/* we need to do esi -= pressed_since[%eax]; to fix the offset accurately */
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@ -2070,10 +2105,12 @@ static bool patch_enhanced_polling()
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uint32_t as_int = (uint32_t)addr;
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LOG("usbPadReadHook address is %x (and pointer to it at %p, %x)\n", usbPadReadHook_addr, &usbPadReadHook_addr, as_int);
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uint64_t patch_addr = (int64_t)data + pattern_offset - 0x04; //-06 to be at call, -03 is address
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uint64_t patch_addr = (int64_t)data + pattern_offset - 0x04; // usbPadRead function address
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patch_memory(patch_addr, (char*)&as_int, 4); // game will call usbPadReadHook instead of real usbPadRead
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patch_addr = (int64_t)data + pattern_offset - 20;
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patch_memory(patch_addr, (char*)"\x90\x90\x90\x90\x90\x90", 6); // don't call usbPadReadLast
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}
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LOG("popnhax: enhanced polling enabled\n");
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