| /* |
| Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org> |
| |
| This software is provided 'as-is', without any express or implied |
| warranty. In no event will the authors be held liable for any damages |
| arising from the use of this software. |
| |
| Permission is granted to anyone to use this software for any purpose, |
| including commercial applications, and to alter it and redistribute it |
| freely. |
| */ |
| |
| /* Game controller mapping generator */ |
| /* Gabriel Jacobo <gabomdq@gmail.com> */ |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #include "SDL.h" |
| |
| #ifndef SDL_JOYSTICK_DISABLED |
| |
| /* Define this for verbose output while mapping controllers */ |
| #define DEBUG_CONTROLLERMAP |
| |
| #ifdef __IPHONEOS__ |
| #define SCREEN_WIDTH 320 |
| #define SCREEN_HEIGHT 480 |
| #else |
| #define SCREEN_WIDTH 512 |
| #define SCREEN_HEIGHT 320 |
| #endif |
| |
| #define MARKER_BUTTON 1 |
| #define MARKER_AXIS 2 |
| |
| enum |
| { |
| SDL_CONTROLLER_BINDING_AXIS_LEFTX_NEGATIVE, |
| SDL_CONTROLLER_BINDING_AXIS_LEFTX_POSITIVE, |
| SDL_CONTROLLER_BINDING_AXIS_LEFTY_NEGATIVE, |
| SDL_CONTROLLER_BINDING_AXIS_LEFTY_POSITIVE, |
| SDL_CONTROLLER_BINDING_AXIS_RIGHTX_NEGATIVE, |
| SDL_CONTROLLER_BINDING_AXIS_RIGHTX_POSITIVE, |
| SDL_CONTROLLER_BINDING_AXIS_RIGHTY_NEGATIVE, |
| SDL_CONTROLLER_BINDING_AXIS_RIGHTY_POSITIVE, |
| SDL_CONTROLLER_BINDING_AXIS_TRIGGERLEFT, |
| SDL_CONTROLLER_BINDING_AXIS_TRIGGERRIGHT, |
| SDL_CONTROLLER_BINDING_AXIS_MAX, |
| }; |
| |
| #define BINDING_COUNT (SDL_CONTROLLER_BUTTON_MAX + SDL_CONTROLLER_BINDING_AXIS_MAX) |
| |
| static struct |
| { |
| int x, y; |
| double angle; |
| int marker; |
| |
| } s_arrBindingDisplay[BINDING_COUNT] = { |
| { 387, 167, 0.0, MARKER_BUTTON }, /* SDL_CONTROLLER_BUTTON_A */ |
| { 431, 132, 0.0, MARKER_BUTTON }, /* SDL_CONTROLLER_BUTTON_B */ |
| { 342, 132, 0.0, MARKER_BUTTON }, /* SDL_CONTROLLER_BUTTON_X */ |
| { 389, 101, 0.0, MARKER_BUTTON }, /* SDL_CONTROLLER_BUTTON_Y */ |
| { 174, 132, 0.0, MARKER_BUTTON }, /* SDL_CONTROLLER_BUTTON_BACK */ |
| { 233, 132, 0.0, MARKER_BUTTON }, /* SDL_CONTROLLER_BUTTON_GUIDE */ |
| { 289, 132, 0.0, MARKER_BUTTON }, /* SDL_CONTROLLER_BUTTON_START */ |
| { 75, 154, 0.0, MARKER_BUTTON }, /* SDL_CONTROLLER_BUTTON_LEFTSTICK */ |
| { 305, 230, 0.0, MARKER_BUTTON }, /* SDL_CONTROLLER_BUTTON_RIGHTSTICK */ |
| { 77, 40, 0.0, MARKER_BUTTON }, /* SDL_CONTROLLER_BUTTON_LEFTSHOULDER */ |
| { 396, 36, 0.0, MARKER_BUTTON }, /* SDL_CONTROLLER_BUTTON_RIGHTSHOULDER */ |
| { 154, 188, 0.0, MARKER_BUTTON }, /* SDL_CONTROLLER_BUTTON_DPAD_UP */ |
| { 154, 249, 0.0, MARKER_BUTTON }, /* SDL_CONTROLLER_BUTTON_DPAD_DOWN */ |
| { 116, 217, 0.0, MARKER_BUTTON }, /* SDL_CONTROLLER_BUTTON_DPAD_LEFT */ |
| { 186, 217, 0.0, MARKER_BUTTON }, /* SDL_CONTROLLER_BUTTON_DPAD_RIGHT */ |
| { 74, 153, 270.0, MARKER_AXIS }, /* SDL_CONTROLLER_BINDING_AXIS_LEFTX_NEGATIVE */ |
| { 74, 153, 90.0, MARKER_AXIS }, /* SDL_CONTROLLER_BINDING_AXIS_LEFTX_POSITIVE */ |
| { 74, 153, 0.0, MARKER_AXIS }, /* SDL_CONTROLLER_BINDING_AXIS_LEFTY_NEGATIVE */ |
| { 74, 153, 180.0, MARKER_AXIS }, /* SDL_CONTROLLER_BINDING_AXIS_LEFTY_POSITIVE */ |
| { 306, 231, 270.0, MARKER_AXIS }, /* SDL_CONTROLLER_BINDING_AXIS_RIGHTX_NEGATIVE */ |
| { 306, 231, 90.0, MARKER_AXIS }, /* SDL_CONTROLLER_BINDING_AXIS_RIGHTX_POSITIVE */ |
| { 306, 231, 0.0, MARKER_AXIS }, /* SDL_CONTROLLER_BINDING_AXIS_RIGHTY_NEGATIVE */ |
| { 306, 231, 180.0, MARKER_AXIS }, /* SDL_CONTROLLER_BINDING_AXIS_RIGHTY_POSITIVE */ |
| { 91, -20, 180.0, MARKER_AXIS }, /* SDL_CONTROLLER_BINDING_AXIS_TRIGGERLEFT */ |
| { 375, -20, 180.0, MARKER_AXIS }, /* SDL_CONTROLLER_BINDING_AXIS_TRIGGERRIGHT */ |
| }; |
| |
| static int s_arrBindingOrder[BINDING_COUNT] = { |
| SDL_CONTROLLER_BUTTON_A, |
| SDL_CONTROLLER_BUTTON_B, |
| SDL_CONTROLLER_BUTTON_Y, |
| SDL_CONTROLLER_BUTTON_X, |
| SDL_CONTROLLER_BUTTON_MAX + SDL_CONTROLLER_BINDING_AXIS_LEFTX_NEGATIVE, |
| SDL_CONTROLLER_BUTTON_MAX + SDL_CONTROLLER_BINDING_AXIS_LEFTX_POSITIVE, |
| SDL_CONTROLLER_BUTTON_MAX + SDL_CONTROLLER_BINDING_AXIS_LEFTY_NEGATIVE, |
| SDL_CONTROLLER_BUTTON_MAX + SDL_CONTROLLER_BINDING_AXIS_LEFTY_POSITIVE, |
| SDL_CONTROLLER_BUTTON_LEFTSTICK, |
| SDL_CONTROLLER_BUTTON_MAX + SDL_CONTROLLER_BINDING_AXIS_RIGHTX_NEGATIVE, |
| SDL_CONTROLLER_BUTTON_MAX + SDL_CONTROLLER_BINDING_AXIS_RIGHTX_POSITIVE, |
| SDL_CONTROLLER_BUTTON_MAX + SDL_CONTROLLER_BINDING_AXIS_RIGHTY_NEGATIVE, |
| SDL_CONTROLLER_BUTTON_MAX + SDL_CONTROLLER_BINDING_AXIS_RIGHTY_POSITIVE, |
| SDL_CONTROLLER_BUTTON_RIGHTSTICK, |
| SDL_CONTROLLER_BUTTON_LEFTSHOULDER, |
| SDL_CONTROLLER_BUTTON_MAX + SDL_CONTROLLER_BINDING_AXIS_TRIGGERLEFT, |
| SDL_CONTROLLER_BUTTON_RIGHTSHOULDER, |
| SDL_CONTROLLER_BUTTON_MAX + SDL_CONTROLLER_BINDING_AXIS_TRIGGERRIGHT, |
| SDL_CONTROLLER_BUTTON_DPAD_UP, |
| SDL_CONTROLLER_BUTTON_DPAD_RIGHT, |
| SDL_CONTROLLER_BUTTON_DPAD_DOWN, |
| SDL_CONTROLLER_BUTTON_DPAD_LEFT, |
| SDL_CONTROLLER_BUTTON_BACK, |
| SDL_CONTROLLER_BUTTON_GUIDE, |
| SDL_CONTROLLER_BUTTON_START, |
| }; |
| |
| typedef struct |
| { |
| SDL_GameControllerBindType bindType; |
| union |
| { |
| int button; |
| |
| struct { |
| int axis; |
| int axis_min; |
| int axis_max; |
| } axis; |
| |
| struct { |
| int hat; |
| int hat_mask; |
| } hat; |
| |
| } value; |
| |
| SDL_bool committed; |
| |
| } SDL_GameControllerExtendedBind; |
| |
| static SDL_GameControllerExtendedBind s_arrBindings[BINDING_COUNT]; |
| |
| typedef struct |
| { |
| SDL_bool m_bMoving; |
| int m_nLastValue; |
| int m_nStartingValue; |
| int m_nFarthestValue; |
| } AxisState; |
| |
| static int s_nNumAxes; |
| static AxisState *s_arrAxisState; |
| |
| static int s_iCurrentBinding; |
| static Uint32 s_unPendingAdvanceTime; |
| static SDL_bool s_bBindingComplete; |
| |
| static SDL_Window *window; |
| static SDL_bool done = SDL_FALSE; |
| |
| SDL_Texture * |
| LoadTexture(SDL_Renderer *renderer, const char *file, SDL_bool transparent) |
| { |
| SDL_Surface *temp; |
| SDL_Texture *texture; |
| |
| /* Load the sprite image */ |
| temp = SDL_LoadBMP(file); |
| if (temp == NULL) { |
| SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't load %s: %s", file, SDL_GetError()); |
| return NULL; |
| } |
| |
| /* Set transparent pixel as the pixel at (0,0) */ |
| if (transparent) { |
| if (temp->format->palette) { |
| SDL_SetColorKey(temp, SDL_TRUE, *(Uint8 *) temp->pixels); |
| } |
| } |
| |
| /* Create textures from the image */ |
| texture = SDL_CreateTextureFromSurface(renderer, temp); |
| if (!texture) { |
| SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create texture: %s\n", SDL_GetError()); |
| SDL_FreeSurface(temp); |
| return NULL; |
| } |
| SDL_FreeSurface(temp); |
| |
| /* We're ready to roll. :) */ |
| return texture; |
| } |
| |
| static int |
| StandardizeAxisValue(int nValue) |
| { |
| if (nValue > SDL_JOYSTICK_AXIS_MAX/2) { |
| return SDL_JOYSTICK_AXIS_MAX; |
| } else if (nValue < SDL_JOYSTICK_AXIS_MIN/2) { |
| return SDL_JOYSTICK_AXIS_MIN; |
| } else { |
| return 0; |
| } |
| } |
| |
| static void |
| SetCurrentBinding(int iBinding) |
| { |
| int iIndex; |
| SDL_GameControllerExtendedBind *pBinding; |
| |
| if (iBinding < 0) { |
| return; |
| } |
| |
| if (iBinding == BINDING_COUNT) { |
| s_bBindingComplete = SDL_TRUE; |
| return; |
| } |
| |
| s_iCurrentBinding = iBinding; |
| |
| pBinding = &s_arrBindings[s_arrBindingOrder[s_iCurrentBinding]]; |
| SDL_zerop(pBinding); |
| |
| for (iIndex = 0; iIndex < s_nNumAxes; ++iIndex) { |
| s_arrAxisState[iIndex].m_nFarthestValue = s_arrAxisState[iIndex].m_nStartingValue; |
| } |
| |
| s_unPendingAdvanceTime = 0; |
| } |
| |
| static SDL_bool |
| BBindingContainsBinding(const SDL_GameControllerExtendedBind *pBindingA, const SDL_GameControllerExtendedBind *pBindingB) |
| { |
| if (pBindingA->bindType != pBindingB->bindType) |
| { |
| return SDL_FALSE; |
| } |
| switch (pBindingA->bindType) |
| { |
| case SDL_CONTROLLER_BINDTYPE_AXIS: |
| if (pBindingA->value.axis.axis != pBindingB->value.axis.axis) { |
| return SDL_FALSE; |
| } |
| if (!pBindingA->committed) { |
| return SDL_FALSE; |
| } |
| { |
| int minA = SDL_min(pBindingA->value.axis.axis_min, pBindingA->value.axis.axis_max); |
| int maxA = SDL_max(pBindingA->value.axis.axis_min, pBindingA->value.axis.axis_max); |
| int minB = SDL_min(pBindingB->value.axis.axis_min, pBindingB->value.axis.axis_max); |
| int maxB = SDL_max(pBindingB->value.axis.axis_min, pBindingB->value.axis.axis_max); |
| return (minA <= minB && maxA >= maxB); |
| } |
| /* Not reached */ |
| default: |
| return SDL_memcmp(pBindingA, pBindingB, sizeof(*pBindingA)) == 0; |
| } |
| } |
| |
| static void |
| ConfigureBinding(const SDL_GameControllerExtendedBind *pBinding) |
| { |
| SDL_GameControllerExtendedBind *pCurrent; |
| int iIndex; |
| int iCurrentElement = s_arrBindingOrder[s_iCurrentBinding]; |
| |
| /* Do we already have this binding? */ |
| for (iIndex = 0; iIndex < SDL_arraysize(s_arrBindings); ++iIndex) { |
| pCurrent = &s_arrBindings[iIndex]; |
| if (BBindingContainsBinding(pCurrent, pBinding)) { |
| if (iIndex == SDL_CONTROLLER_BUTTON_A && iCurrentElement != SDL_CONTROLLER_BUTTON_B) { |
| /* Skip to the next binding */ |
| SetCurrentBinding(s_iCurrentBinding + 1); |
| return; |
| } |
| |
| if (iIndex == SDL_CONTROLLER_BUTTON_B) { |
| /* Go back to the previous binding */ |
| SetCurrentBinding(s_iCurrentBinding - 1); |
| return; |
| } |
| |
| /* Already have this binding, ignore it */ |
| return; |
| } |
| } |
| |
| #ifdef DEBUG_CONTROLLERMAP |
| switch ( pBinding->bindType ) |
| { |
| case SDL_CONTROLLER_BINDTYPE_NONE: |
| break; |
| case SDL_CONTROLLER_BINDTYPE_BUTTON: |
| SDL_Log("Configuring button binding for button %d\n", pBinding->value.button); |
| break; |
| case SDL_CONTROLLER_BINDTYPE_AXIS: |
| SDL_Log("Configuring axis binding for axis %d %d/%d committed = %s\n", pBinding->value.axis.axis, pBinding->value.axis.axis_min, pBinding->value.axis.axis_max, pBinding->committed ? "true" : "false"); |
| break; |
| case SDL_CONTROLLER_BINDTYPE_HAT: |
| SDL_Log("Configuring hat binding for hat %d %d\n", pBinding->value.hat.hat, pBinding->value.hat.hat_mask); |
| break; |
| } |
| #endif /* DEBUG_CONTROLLERMAP */ |
| |
| /* Should the new binding override the existing one? */ |
| pCurrent = &s_arrBindings[iCurrentElement]; |
| if (pCurrent->bindType != SDL_CONTROLLER_BINDTYPE_NONE) { |
| SDL_bool bNativeDPad, bCurrentDPad; |
| SDL_bool bNativeAxis, bCurrentAxis; |
| |
| bNativeDPad = (iCurrentElement == SDL_CONTROLLER_BUTTON_DPAD_UP || |
| iCurrentElement == SDL_CONTROLLER_BUTTON_DPAD_DOWN || |
| iCurrentElement == SDL_CONTROLLER_BUTTON_DPAD_LEFT || |
| iCurrentElement == SDL_CONTROLLER_BUTTON_DPAD_RIGHT); |
| bCurrentDPad = (pCurrent->bindType == SDL_CONTROLLER_BINDTYPE_HAT); |
| if (bNativeDPad && bCurrentDPad) { |
| /* We already have a binding of the type we want, ignore the new one */ |
| return; |
| } |
| |
| bNativeAxis = (iCurrentElement >= SDL_CONTROLLER_BUTTON_MAX); |
| bCurrentAxis = (pCurrent->bindType == SDL_CONTROLLER_BINDTYPE_AXIS); |
| if (bNativeAxis == bCurrentAxis && |
| (pBinding->bindType != SDL_CONTROLLER_BINDTYPE_AXIS || |
| pBinding->value.axis.axis != pCurrent->value.axis.axis)) { |
| /* We already have a binding of the type we want, ignore the new one */ |
| return; |
| } |
| } |
| |
| *pCurrent = *pBinding; |
| |
| if (pBinding->committed) { |
| s_unPendingAdvanceTime = SDL_GetTicks(); |
| } else { |
| s_unPendingAdvanceTime = 0; |
| } |
| } |
| |
| static SDL_bool |
| BMergeAxisBindings(int iIndex) |
| { |
| SDL_GameControllerExtendedBind *pBindingA = &s_arrBindings[iIndex]; |
| SDL_GameControllerExtendedBind *pBindingB = &s_arrBindings[iIndex+1]; |
| if (pBindingA->bindType == SDL_CONTROLLER_BINDTYPE_AXIS && |
| pBindingB->bindType == SDL_CONTROLLER_BINDTYPE_AXIS && |
| pBindingA->value.axis.axis == pBindingB->value.axis.axis) { |
| if (pBindingA->value.axis.axis_min == pBindingB->value.axis.axis_min) { |
| pBindingA->value.axis.axis_min = pBindingA->value.axis.axis_max; |
| pBindingA->value.axis.axis_max = pBindingB->value.axis.axis_max; |
| pBindingB->bindType = SDL_CONTROLLER_BINDTYPE_NONE; |
| return SDL_TRUE; |
| } |
| } |
| return SDL_FALSE; |
| } |
| |
| static void |
| WatchJoystick(SDL_Joystick * joystick) |
| { |
| SDL_Renderer *screen = NULL; |
| SDL_Texture *background, *button, *axis, *marker; |
| const char *name = NULL; |
| SDL_Event event; |
| SDL_Rect dst; |
| Uint8 alpha=200, alpha_step = -1; |
| Uint32 alpha_ticks = 0; |
| SDL_JoystickID nJoystickID; |
| |
| screen = SDL_CreateRenderer(window, -1, 0); |
| if (screen == NULL) { |
| SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create renderer: %s\n", SDL_GetError()); |
| return; |
| } |
| |
| background = LoadTexture(screen, "controllermap.bmp", SDL_FALSE); |
| button = LoadTexture(screen, "button.bmp", SDL_TRUE); |
| axis = LoadTexture(screen, "axis.bmp", SDL_TRUE); |
| SDL_RaiseWindow(window); |
| |
| /* scale for platforms that don't give you the window size you asked for. */ |
| SDL_RenderSetLogicalSize(screen, SCREEN_WIDTH, SCREEN_HEIGHT); |
| |
| /* Print info about the joystick we are watching */ |
| name = SDL_JoystickName(joystick); |
| SDL_Log("Watching joystick %d: (%s)\n", SDL_JoystickInstanceID(joystick), |
| name ? name : "Unknown Joystick"); |
| SDL_Log("Joystick has %d axes, %d hats, %d balls, and %d buttons\n", |
| SDL_JoystickNumAxes(joystick), SDL_JoystickNumHats(joystick), |
| SDL_JoystickNumBalls(joystick), SDL_JoystickNumButtons(joystick)); |
| |
| SDL_Log("\n\n\ |
| ====================================================================================\n\ |
| Press the buttons on your controller when indicated\n\ |
| (Your controller may look different than the picture)\n\ |
| If you want to correct a mistake, press backspace or the back button on your device\n\ |
| To skip a button, press SPACE or click/touch the screen\n\ |
| To exit, press ESC\n\ |
| ====================================================================================\n"); |
| |
| nJoystickID = SDL_JoystickInstanceID(joystick); |
| |
| s_nNumAxes = SDL_JoystickNumAxes(joystick); |
| s_arrAxisState = (AxisState *)SDL_calloc(s_nNumAxes, sizeof(*s_arrAxisState)); |
| |
| /* Skip any spurious events at start */ |
| while (SDL_PollEvent(&event) > 0) { |
| continue; |
| } |
| |
| /* Loop, getting joystick events! */ |
| while (!done && !s_bBindingComplete) { |
| int iElement = s_arrBindingOrder[s_iCurrentBinding]; |
| |
| switch (s_arrBindingDisplay[iElement].marker) { |
| case MARKER_AXIS: |
| marker = axis; |
| break; |
| case MARKER_BUTTON: |
| marker = button; |
| break; |
| default: |
| break; |
| } |
| |
| dst.x = s_arrBindingDisplay[iElement].x; |
| dst.y = s_arrBindingDisplay[iElement].y; |
| SDL_QueryTexture(marker, NULL, NULL, &dst.w, &dst.h); |
| |
| if (SDL_GetTicks() - alpha_ticks > 5) { |
| alpha_ticks = SDL_GetTicks(); |
| alpha += alpha_step; |
| if (alpha == 255) { |
| alpha_step = -1; |
| } |
| if (alpha < 128) { |
| alpha_step = 1; |
| } |
| } |
| |
| SDL_SetRenderDrawColor(screen, 0xFF, 0xFF, 0xFF, SDL_ALPHA_OPAQUE); |
| SDL_RenderClear(screen); |
| SDL_RenderCopy(screen, background, NULL, NULL); |
| SDL_SetTextureAlphaMod(marker, alpha); |
| SDL_SetTextureColorMod(marker, 10, 255, 21); |
| SDL_RenderCopyEx(screen, marker, NULL, &dst, s_arrBindingDisplay[iElement].angle, NULL, SDL_FLIP_NONE); |
| SDL_RenderPresent(screen); |
| |
| while (SDL_PollEvent(&event) > 0) { |
| switch (event.type) { |
| case SDL_JOYDEVICEREMOVED: |
| if (event.jaxis.which == nJoystickID) { |
| done = SDL_TRUE; |
| } |
| break; |
| case SDL_JOYAXISMOTION: |
| if (event.jaxis.which == nJoystickID) { |
| const int MAX_ALLOWED_JITTER = SDL_JOYSTICK_AXIS_MAX / 80; /* ShanWan PS3 controller needed 96 */ |
| AxisState *pAxisState = &s_arrAxisState[event.jaxis.axis]; |
| int nValue = event.jaxis.value; |
| int nCurrentDistance, nFarthestDistance; |
| if (!pAxisState->m_bMoving) { |
| Sint16 nInitialValue; |
| pAxisState->m_bMoving = SDL_JoystickGetAxisInitialState(joystick, event.jaxis.axis, &nInitialValue); |
| pAxisState->m_nLastValue = nValue; |
| pAxisState->m_nStartingValue = nInitialValue; |
| pAxisState->m_nFarthestValue = nInitialValue; |
| } else if (SDL_abs(nValue - pAxisState->m_nLastValue) <= MAX_ALLOWED_JITTER) { |
| break; |
| } else { |
| pAxisState->m_nLastValue = nValue; |
| } |
| nCurrentDistance = SDL_abs(nValue - pAxisState->m_nStartingValue); |
| nFarthestDistance = SDL_abs(pAxisState->m_nFarthestValue - pAxisState->m_nStartingValue); |
| if (nCurrentDistance > nFarthestDistance) { |
| pAxisState->m_nFarthestValue = nValue; |
| nFarthestDistance = SDL_abs(pAxisState->m_nFarthestValue - pAxisState->m_nStartingValue); |
| } |
| |
| #ifdef DEBUG_CONTROLLERMAP |
| SDL_Log("AXIS %d nValue %d nCurrentDistance %d nFarthestDistance %d\n", event.jaxis.axis, nValue, nCurrentDistance, nFarthestDistance); |
| #endif |
| if (nFarthestDistance >= 16000) { |
| /* If we've gone out far enough and started to come back, let's bind this axis */ |
| SDL_bool bCommitBinding = (nCurrentDistance <= 10000) ? SDL_TRUE : SDL_FALSE; |
| SDL_GameControllerExtendedBind binding; |
| SDL_zero(binding); |
| binding.bindType = SDL_CONTROLLER_BINDTYPE_AXIS; |
| binding.value.axis.axis = event.jaxis.axis; |
| binding.value.axis.axis_min = StandardizeAxisValue(pAxisState->m_nStartingValue); |
| binding.value.axis.axis_max = StandardizeAxisValue(pAxisState->m_nFarthestValue); |
| binding.committed = bCommitBinding; |
| ConfigureBinding(&binding); |
| } |
| } |
| break; |
| case SDL_JOYHATMOTION: |
| if (event.jhat.which == nJoystickID) { |
| if (event.jhat.value != SDL_HAT_CENTERED) { |
| SDL_GameControllerExtendedBind binding; |
| |
| #ifdef DEBUG_CONTROLLERMAP |
| SDL_Log("HAT %d %d\n", event.jhat.hat, event.jhat.value); |
| #endif |
| SDL_zero(binding); |
| binding.bindType = SDL_CONTROLLER_BINDTYPE_HAT; |
| binding.value.hat.hat = event.jhat.hat; |
| binding.value.hat.hat_mask = event.jhat.value; |
| binding.committed = SDL_TRUE; |
| ConfigureBinding(&binding); |
| } |
| } |
| break; |
| case SDL_JOYBALLMOTION: |
| break; |
| case SDL_JOYBUTTONDOWN: |
| if (event.jbutton.which == nJoystickID) { |
| SDL_GameControllerExtendedBind binding; |
| |
| #ifdef DEBUG_CONTROLLERMAP |
| SDL_Log("BUTTON %d\n", event.jbutton.button); |
| #endif |
| SDL_zero(binding); |
| binding.bindType = SDL_CONTROLLER_BINDTYPE_BUTTON; |
| binding.value.button = event.jbutton.button; |
| binding.committed = SDL_TRUE; |
| ConfigureBinding(&binding); |
| } |
| break; |
| case SDL_FINGERDOWN: |
| case SDL_MOUSEBUTTONDOWN: |
| /* Skip this step */ |
| SetCurrentBinding(s_iCurrentBinding + 1); |
| break; |
| case SDL_KEYDOWN: |
| if (event.key.keysym.sym == SDLK_BACKSPACE || event.key.keysym.sym == SDLK_AC_BACK) { |
| SetCurrentBinding(s_iCurrentBinding - 1); |
| break; |
| } |
| if (event.key.keysym.sym == SDLK_SPACE) { |
| SetCurrentBinding(s_iCurrentBinding + 1); |
| break; |
| } |
| |
| if ((event.key.keysym.sym != SDLK_ESCAPE)) { |
| break; |
| } |
| /* Fall through to signal quit */ |
| case SDL_QUIT: |
| done = SDL_TRUE; |
| break; |
| default: |
| break; |
| } |
| } |
| |
| SDL_Delay(15); |
| |
| /* Wait 100 ms for joystick events to stop coming in, |
| in case a controller sends multiple events for a single control (e.g. axis and button for trigger) |
| */ |
| if (s_unPendingAdvanceTime && SDL_GetTicks() - s_unPendingAdvanceTime >= 100) { |
| SetCurrentBinding(s_iCurrentBinding + 1); |
| } |
| } |
| |
| if (s_bBindingComplete) { |
| char mapping[1024]; |
| char trimmed_name[128]; |
| char *spot; |
| int iIndex; |
| char pszElement[12]; |
| |
| SDL_strlcpy(trimmed_name, name, SDL_arraysize(trimmed_name)); |
| while (SDL_isspace(trimmed_name[0])) { |
| SDL_memmove(&trimmed_name[0], &trimmed_name[1], SDL_strlen(trimmed_name)); |
| } |
| while (trimmed_name[0] && SDL_isspace(trimmed_name[SDL_strlen(trimmed_name) - 1])) { |
| trimmed_name[SDL_strlen(trimmed_name) - 1] = '\0'; |
| } |
| while ((spot = SDL_strchr(trimmed_name, ',')) != NULL) { |
| SDL_memmove(spot, spot + 1, SDL_strlen(spot)); |
| } |
| |
| /* Initialize mapping with GUID and name */ |
| SDL_JoystickGetGUIDString(SDL_JoystickGetGUID(joystick), mapping, SDL_arraysize(mapping)); |
| SDL_strlcat(mapping, ",", SDL_arraysize(mapping)); |
| SDL_strlcat(mapping, trimmed_name, SDL_arraysize(mapping)); |
| SDL_strlcat(mapping, ",", SDL_arraysize(mapping)); |
| SDL_strlcat(mapping, "platform:", SDL_arraysize(mapping)); |
| SDL_strlcat(mapping, SDL_GetPlatform(), SDL_arraysize(mapping)); |
| SDL_strlcat(mapping, ",", SDL_arraysize(mapping)); |
| |
| for (iIndex = 0; iIndex < SDL_arraysize(s_arrBindings); ++iIndex) { |
| SDL_GameControllerExtendedBind *pBinding = &s_arrBindings[iIndex]; |
| if (pBinding->bindType == SDL_CONTROLLER_BINDTYPE_NONE) { |
| continue; |
| } |
| |
| if (iIndex < SDL_CONTROLLER_BUTTON_MAX) { |
| SDL_GameControllerButton eButton = (SDL_GameControllerButton)iIndex; |
| SDL_strlcat(mapping, SDL_GameControllerGetStringForButton(eButton), SDL_arraysize(mapping)); |
| } else { |
| const char *pszAxisName; |
| switch (iIndex - SDL_CONTROLLER_BUTTON_MAX) { |
| case SDL_CONTROLLER_BINDING_AXIS_LEFTX_NEGATIVE: |
| if (!BMergeAxisBindings(iIndex)) { |
| SDL_strlcat(mapping, "-", SDL_arraysize(mapping)); |
| } |
| pszAxisName = SDL_GameControllerGetStringForAxis(SDL_CONTROLLER_AXIS_LEFTX); |
| break; |
| case SDL_CONTROLLER_BINDING_AXIS_LEFTX_POSITIVE: |
| SDL_strlcat(mapping, "+", SDL_arraysize(mapping)); |
| pszAxisName = SDL_GameControllerGetStringForAxis(SDL_CONTROLLER_AXIS_LEFTX); |
| break; |
| case SDL_CONTROLLER_BINDING_AXIS_LEFTY_NEGATIVE: |
| if (!BMergeAxisBindings(iIndex)) { |
| SDL_strlcat(mapping, "-", SDL_arraysize(mapping)); |
| } |
| pszAxisName = SDL_GameControllerGetStringForAxis(SDL_CONTROLLER_AXIS_LEFTY); |
| break; |
| case SDL_CONTROLLER_BINDING_AXIS_LEFTY_POSITIVE: |
| SDL_strlcat(mapping, "+", SDL_arraysize(mapping)); |
| pszAxisName = SDL_GameControllerGetStringForAxis(SDL_CONTROLLER_AXIS_LEFTY); |
| break; |
| case SDL_CONTROLLER_BINDING_AXIS_RIGHTX_NEGATIVE: |
| if (!BMergeAxisBindings(iIndex)) { |
| SDL_strlcat(mapping, "-", SDL_arraysize(mapping)); |
| } |
| pszAxisName = SDL_GameControllerGetStringForAxis(SDL_CONTROLLER_AXIS_RIGHTX); |
| break; |
| case SDL_CONTROLLER_BINDING_AXIS_RIGHTX_POSITIVE: |
| SDL_strlcat(mapping, "+", SDL_arraysize(mapping)); |
| pszAxisName = SDL_GameControllerGetStringForAxis(SDL_CONTROLLER_AXIS_RIGHTX); |
| break; |
| case SDL_CONTROLLER_BINDING_AXIS_RIGHTY_NEGATIVE: |
| if (!BMergeAxisBindings(iIndex)) { |
| SDL_strlcat(mapping, "-", SDL_arraysize(mapping)); |
| } |
| pszAxisName = SDL_GameControllerGetStringForAxis(SDL_CONTROLLER_AXIS_RIGHTY); |
| break; |
| case SDL_CONTROLLER_BINDING_AXIS_RIGHTY_POSITIVE: |
| SDL_strlcat(mapping, "+", SDL_arraysize(mapping)); |
| pszAxisName = SDL_GameControllerGetStringForAxis(SDL_CONTROLLER_AXIS_RIGHTY); |
| break; |
| case SDL_CONTROLLER_BINDING_AXIS_TRIGGERLEFT: |
| pszAxisName = SDL_GameControllerGetStringForAxis(SDL_CONTROLLER_AXIS_TRIGGERLEFT); |
| break; |
| case SDL_CONTROLLER_BINDING_AXIS_TRIGGERRIGHT: |
| pszAxisName = SDL_GameControllerGetStringForAxis(SDL_CONTROLLER_AXIS_TRIGGERRIGHT); |
| break; |
| } |
| SDL_strlcat(mapping, pszAxisName, SDL_arraysize(mapping)); |
| } |
| SDL_strlcat(mapping, ":", SDL_arraysize(mapping)); |
| |
| pszElement[0] = '\0'; |
| switch (pBinding->bindType) { |
| case SDL_CONTROLLER_BINDTYPE_BUTTON: |
| SDL_snprintf(pszElement, sizeof(pszElement), "b%d", pBinding->value.button); |
| break; |
| case SDL_CONTROLLER_BINDTYPE_AXIS: |
| if (pBinding->value.axis.axis_min == 0 && pBinding->value.axis.axis_max == SDL_JOYSTICK_AXIS_MIN) { |
| /* The negative half axis */ |
| SDL_snprintf(pszElement, sizeof(pszElement), "-a%d", pBinding->value.axis.axis); |
| } else if (pBinding->value.axis.axis_min == 0 && pBinding->value.axis.axis_max == SDL_JOYSTICK_AXIS_MAX) { |
| /* The positive half axis */ |
| SDL_snprintf(pszElement, sizeof(pszElement), "+a%d", pBinding->value.axis.axis); |
| } else { |
| SDL_snprintf(pszElement, sizeof(pszElement), "a%d", pBinding->value.axis.axis); |
| if (pBinding->value.axis.axis_min > pBinding->value.axis.axis_max) { |
| /* Invert the axis */ |
| SDL_strlcat(pszElement, "~", SDL_arraysize(pszElement)); |
| } |
| } |
| break; |
| case SDL_CONTROLLER_BINDTYPE_HAT: |
| SDL_snprintf(pszElement, sizeof(pszElement), "h%d.%d", pBinding->value.hat.hat, pBinding->value.hat.hat_mask); |
| break; |
| default: |
| SDL_assert(!"Unknown bind type"); |
| break; |
| } |
| SDL_strlcat(mapping, pszElement, SDL_arraysize(mapping)); |
| SDL_strlcat(mapping, ",", SDL_arraysize(mapping)); |
| } |
| |
| SDL_Log("Mapping:\n\n%s\n\n", mapping); |
| /* Print to stdout as well so the user can cat the output somewhere */ |
| printf("%s\n", mapping); |
| } |
| |
| SDL_free(s_arrAxisState); |
| s_arrAxisState = NULL; |
| |
| SDL_DestroyRenderer(screen); |
| } |
| |
| int |
| main(int argc, char *argv[]) |
| { |
| const char *name; |
| int i; |
| SDL_Joystick *joystick; |
| |
| /* Enable standard application logging */ |
| SDL_LogSetPriority(SDL_LOG_CATEGORY_APPLICATION, SDL_LOG_PRIORITY_INFO); |
| |
| /* Initialize SDL (Note: video is required to start event loop) */ |
| if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK) < 0) { |
| SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't initialize SDL: %s\n", SDL_GetError()); |
| exit(1); |
| } |
| |
| /* Create a window to display joystick axis position */ |
| window = SDL_CreateWindow("Game Controller Map", SDL_WINDOWPOS_CENTERED, |
| SDL_WINDOWPOS_CENTERED, SCREEN_WIDTH, |
| SCREEN_HEIGHT, 0); |
| if (window == NULL) { |
| SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create window: %s\n", SDL_GetError()); |
| return 2; |
| } |
| |
| while (SDL_NumJoysticks() == 0) { |
| SDL_Event event; |
| |
| while (SDL_PollEvent(&event) > 0) { |
| switch (event.type) { |
| case SDL_KEYDOWN: |
| if ((event.key.keysym.sym != SDLK_ESCAPE)) { |
| break; |
| } |
| /* Fall through to signal quit */ |
| case SDL_QUIT: |
| done = SDL_TRUE; |
| break; |
| default: |
| break; |
| } |
| } |
| } |
| |
| /* Print information about the joysticks */ |
| SDL_Log("There are %d joysticks attached\n", SDL_NumJoysticks()); |
| for (i = 0; i < SDL_NumJoysticks(); ++i) { |
| name = SDL_JoystickNameForIndex(i); |
| SDL_Log("Joystick %d: %s\n", i, name ? name : "Unknown Joystick"); |
| joystick = SDL_JoystickOpen(i); |
| if (joystick == NULL) { |
| SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "SDL_JoystickOpen(%d) failed: %s\n", i, |
| SDL_GetError()); |
| } else { |
| char guid[64]; |
| SDL_JoystickGetGUIDString(SDL_JoystickGetGUID(joystick), |
| guid, sizeof (guid)); |
| SDL_Log(" axes: %d\n", SDL_JoystickNumAxes(joystick)); |
| SDL_Log(" balls: %d\n", SDL_JoystickNumBalls(joystick)); |
| SDL_Log(" hats: %d\n", SDL_JoystickNumHats(joystick)); |
| SDL_Log(" buttons: %d\n", SDL_JoystickNumButtons(joystick)); |
| SDL_Log("instance id: %d\n", SDL_JoystickInstanceID(joystick)); |
| SDL_Log(" guid: %s\n", guid); |
| SDL_Log(" VID/PID: 0x%.4x/0x%.4x\n", SDL_JoystickGetVendor(joystick), SDL_JoystickGetProduct(joystick)); |
| SDL_JoystickClose(joystick); |
| } |
| } |
| |
| joystick = SDL_JoystickOpen(0); |
| if (joystick == NULL) { |
| SDL_Log("Couldn't open joystick 0: %s\n", SDL_GetError()); |
| } else { |
| WatchJoystick(joystick); |
| SDL_JoystickClose(joystick); |
| } |
| |
| SDL_DestroyWindow(window); |
| |
| SDL_QuitSubSystem(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK); |
| |
| return 0; |
| } |
| |
| #else |
| |
| int |
| main(int argc, char *argv[]) |
| { |
| SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "SDL compiled without Joystick support.\n"); |
| return 1; |
| } |
| |
| #endif |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |
