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Diffstat (limited to 'Stars45/Joystick.cpp')
| -rw-r--r-- | Stars45/Joystick.cpp | 938 |
1 files changed, 938 insertions, 0 deletions
diff --git a/Stars45/Joystick.cpp b/Stars45/Joystick.cpp new file mode 100644 index 0000000..6c3e401 --- /dev/null +++ b/Stars45/Joystick.cpp @@ -0,0 +1,938 @@ +/* Starshatter OpenSource Distribution + Copyright (c) 1997-2004, Destroyer Studios LLC. + All Rights Reserved. + + Redistribution and use in source and binary forms, with or without + modification, are permitted provided that the following conditions are met: + + * Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimer. + * Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimer in the documentation + and/or other materials provided with the distribution. + * Neither the name "Destroyer Studios" nor the names of its contributors + may be used to endorse or promote products derived from this software + without specific prior written permission. + + THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE + LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF + SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS + INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN + CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + POSSIBILITY OF SUCH DAMAGE. + + SUBSYSTEM: nGenEx.lib + FILE: Joystick.cpp + AUTHOR: John DiCamillo + + + OVERVIEW + ======== + Joystick Input class +*/ + +#include "MemDebug.h" +#include "Joystick.h" +#include "MachineInfo.h" +#include "Game.h" + +#define DIRECTINPUT_VERSION 0x0700 + +#include <dinput.h> + +#define JOY_POVUPRIGHT 4500 +#define JOY_POVDNRIGHT 13500 +#define JOY_POVDNLEFT 22500 +#define JOY_POVUPLEFT 31500 + +// +--------------------------------------------------------------------+ +// DIRECT INPUT SUPPORT + +const int MAX_DEVICES = 8; + +static LPDIRECTINPUT7 pdi = 0; +static LPDIRECTINPUTDEVICE7 pdev = 0; +static DIDEVICEINSTANCE devices[MAX_DEVICES]; +static int ndev = 0; +static int idev = -1; +static int strikes = 3; + +static Joystick* joystick = 0; + +void DirectInputError(const char* msg, HRESULT err); +char* DIErrStr(HRESULT hr); +void ReleaseDirectInput(); + +// +--------------------------------------------------------------------+ + +Joystick::Joystick() +: x(0), y(0), z(0), p(0), r(0), w(0), t(0) +{ + if (!joystick) + joystick = this; + + select = 1; + rudder = 0; + throttle = 1; + sensitivity = 25; + dead_zone = 100; + + for (int i = 0; i < MotionController::MaxActions; i++) + action[i] = false; + + for (int i = 0; i < KEY_MAP_SIZE; i++) + map[i] = 0; + + for (int i = 0; i < 4; i++) { + for (int j = 0; j < 4; j++) { + hat[i][j] = false; + } + } + + map_axis[0] = KEY_JOY_AXIS_X; + map_axis[1] = KEY_JOY_AXIS_Y; + map_axis[2] = KEY_JOY_AXIS_RZ; + map_axis[3] = KEY_JOY_AXIS_S0; + + inv_axis[0] = false; + inv_axis[1] = false; + inv_axis[2] = false; + inv_axis[3] = false; + + if (MachineInfo::GetDirectXVersion() < MachineInfo::DX_7) { + Print("Joystick: DI7 not found, using multimedia library\n"); + pdi = 0; + pdev = 0; + } + + else if (!pdi) { + HRESULT hr = DirectInputCreateEx(Game::GetHINST(), + DIRECTINPUT_VERSION, + IID_IDirectInput7, + (void**)&pdi, + NULL); + if FAILED(hr) { + DirectInputError("Failed to initialize DI7", hr); + pdi = 0; + pdev = 0; + } + else { + Print("Joystick: initialized DI7 pdi = %08x\n", (DWORD) pdi); + } + } +} + +Joystick::~Joystick() +{ + ReleaseDirectInput(); + joystick = 0; +} + +void ReleaseDirectInput() +{ + if (pdev) { + pdev->Unacquire(); + pdev->Release(); + pdev = 0; + } + + if (pdi) { + pdi->Release(); + pdi = 0; + } +} + +Joystick* Joystick::GetInstance() +{ + return joystick; +} + +// +--------------------------------------------------------------------+ + +void +Joystick::MapKeys(KeyMapEntry* mapping, int nkeys) +{ + ZeroMemory(map, sizeof(map)); + + for (int i = 0; i < nkeys; i++) { + KeyMapEntry k = mapping[i]; + + if (k.act >= KEY_MAP_FIRST && k.act < KEY_MAP_LAST) { + if (k.act == KEY_JOY_SENSE) + sensitivity = k.key; + + else if (k.act == KEY_JOY_DEAD_ZONE) + dead_zone = k.key; + + else if (k.act == KEY_JOY_SWAP) + swapped = k.key; + + else if (k.act == KEY_JOY_RUDDER) + rudder = k.key; + + else if (k.act == KEY_JOY_THROTTLE) + throttle = k.key; + + else if (k.act == KEY_JOY_SELECT) + select = k.key; + + + else if (k.act == KEY_AXIS_YAW) + map_axis[0] = k.key; + + else if (k.act == KEY_AXIS_PITCH) + map_axis[1] = k.key; + + else if (k.act == KEY_AXIS_ROLL) + map_axis[2] = k.key; + + else if (k.act == KEY_AXIS_THROTTLE) + map_axis[3] = k.key; + + + else if (k.act == KEY_AXIS_YAW_INVERT) + inv_axis[0] = k.key ? true : false; + + else if (k.act == KEY_AXIS_PITCH_INVERT) + inv_axis[1] = k.key ? true : false; + + else if (k.act == KEY_AXIS_ROLL_INVERT) + inv_axis[2] = k.key ? true : false; + + else if (k.act == KEY_AXIS_THROTTLE_INVERT) + inv_axis[3] = k.key ? true : false; + + else if (k.key >= KEY_JOY_1 && k.key <= KEY_JOY_32) + map[k.act] = k.key; + + else if (k.alt >= KEY_JOY_1 && k.alt <= KEY_JOY_32) + map[k.act] = k.alt; + + else if (k.joy >= KEY_JOY_1 && k.joy <= KEY_JOY_32) + map[k.act] = k.joy; + + else if (k.key >= KEY_POV_0_UP && k.key <= KEY_POV_3_RIGHT) + map[k.act] = k.key; + + else if (k.alt >= KEY_POV_0_UP && k.alt <= KEY_POV_3_RIGHT) + map[k.act] = k.alt; + + else if (k.joy >= KEY_POV_0_UP && k.joy <= KEY_POV_3_RIGHT) + map[k.act] = k.joy; + } + } +} + +// +--------------------------------------------------------------------+ + +static inline double sqr(double a) { return a*a; } + +BOOL FAR PASCAL EnumJoystick(LPCDIDEVICEINSTANCE pdinst, LPVOID pvSelect) +{ + CopyMemory(&devices[ndev++], pdinst, pdinst->dwSize); + + ::Print("EnumJoystick %d: '%s'\n", ndev, pdinst->tszInstanceName); + ::Print(" guid: {%08x-%04x-%04x-%02x%02x%02x%02x%02x%02x} \n", + (DWORD) pdinst->guidInstance.Data1, + (WORD) pdinst->guidInstance.Data2, + (WORD) pdinst->guidInstance.Data3, + (BYTE) pdinst->guidInstance.Data4[0], + (BYTE) pdinst->guidInstance.Data4[1], + (BYTE) pdinst->guidInstance.Data4[2], + (BYTE) pdinst->guidInstance.Data4[3], + (BYTE) pdinst->guidInstance.Data4[4], + (BYTE) pdinst->guidInstance.Data4[5]); + + if (ndev < MAX_DEVICES) + return DIENUM_CONTINUE; + + return DIENUM_STOP; +} + +bool CreateDevice(int select) +{ + if (!pdi || ndev < select) + return false; + + LPCDIDEVICEINSTANCE pdinst = &devices[select-1]; + + ::Print("Joystick CreateDevice(%d)\n", select); + ::Print(" name: %s\n\n", pdinst->tszInstanceName); + + // release current device before trying to get another: + if (pdev) { + pdev->Unacquire(); + pdev->Release(); + pdev = 0; + } + + HRESULT hr = DI_OK; + // Create the DirectInput joystick device: + hr = pdi->CreateDeviceEx(pdinst->guidInstance, + IID_IDirectInputDevice7, + (void**)&pdev, + NULL); + + if (hr != DI_OK || pdev == 0) { + DirectInputError("Create Device Ex failed", hr); + return false; + } + + // Set the data format: + hr = pdev->SetDataFormat(&c_dfDIJoystick); + + if (hr != DI_OK) { + DirectInputError("Set Data Format failed", hr); + pdev->Release(); + pdev = 0; + return false; + } + + // Set the coop level: + hr = pdev->SetCooperativeLevel(Game::GetHWND(), DISCL_NONEXCLUSIVE | DISCL_FOREGROUND); + + if (hr != DI_OK) { + DirectInputError("Set Cooperative Level failed", hr); + pdev->Release(); + return false; + } + + // Set data ranges + DIPROPRANGE diprg; + diprg.lMin = -32768; + diprg.lMax = +32768; + + diprg.diph.dwSize = sizeof(diprg); + diprg.diph.dwHeaderSize = sizeof(diprg.diph); + diprg.diph.dwObj = DIJOFS_X; + diprg.diph.dwHow = DIPH_BYOFFSET; + pdev->SetProperty(DIPROP_RANGE, &diprg.diph); + + diprg.diph.dwObj = DIJOFS_Y; + pdev->SetProperty(DIPROP_RANGE, &diprg.diph); + + diprg.diph.dwObj = DIJOFS_Z; + pdev->SetProperty(DIPROP_RANGE, &diprg.diph); + + diprg.diph.dwObj = DIJOFS_RX; + pdev->SetProperty(DIPROP_RANGE, &diprg.diph); + + diprg.diph.dwObj = DIJOFS_RY; + pdev->SetProperty(DIPROP_RANGE, &diprg.diph); + + diprg.diph.dwObj = DIJOFS_RZ; + pdev->SetProperty(DIPROP_RANGE, &diprg.diph); + + diprg.diph.dwObj = DIJOFS_SLIDER(0); + pdev->SetProperty(DIPROP_RANGE, &diprg.diph); + + diprg.diph.dwObj = DIJOFS_SLIDER(1); + pdev->SetProperty(DIPROP_RANGE, &diprg.diph); + + ::Print("Created joystick %d (pdev = %08x)\n", select, (DWORD) pdev); + idev = select; + return true; +} + +void +Joystick::EnumerateDevices() +{ + if (!pdi) { + Print("Joystick: no DI7, unable to enumerate devices\n"); + ndev = 0; + } + + else if (ndev < 1) { + Print("Joystick: preparing to enumerate devices\n"); + + ndev = 0; + HRESULT hr = + pdi->EnumDevices(DIDEVTYPE_JOYSTICK, + EnumJoystick, + (LPVOID) 0, + DIEDFL_ATTACHEDONLY); + + if (FAILED(hr)) { + DirectInputError("Failed to enumerate devices", hr); + ReleaseDirectInput(); + } + + else if (ndev < 1) { + Print("Joystick: no devices found\n"); + ReleaseDirectInput(); + } + } +} + +int +Joystick::NumDevices() +{ + return ndev; +} + +const char* +Joystick::GetDeviceName(int i) +{ + if (i >= 0 && i < ndev) + return devices[i].tszInstanceName; + + return 0; +} + +// +--------------------------------------------------------------------+ + +static DIJOYSTATE joystate; +static JOYINFOEX joyinfo; + +int +Joystick::ReadRawAxis(int a) +{ + if (!joystick) + return 0; + + int result = 0; + + if (pdev) { + switch (a) { + case KEY_JOY_AXIS_X: result = joystate.lX; break; + case KEY_JOY_AXIS_Y: result = joystate.lY; break; + case KEY_JOY_AXIS_Z: result = joystate.lZ; break; + case KEY_JOY_AXIS_RX: result = joystate.lRx; break; + case KEY_JOY_AXIS_RY: result = joystate.lRy; break; + case KEY_JOY_AXIS_RZ: result = joystate.lRz; break; + case KEY_JOY_AXIS_S0: result = joystate.rglSlider[0]; break; + case KEY_JOY_AXIS_S1: result = joystate.rglSlider[1]; break; + } + } + + else { + switch (a) { + case KEY_JOY_AXIS_X: + if (joyinfo.dwFlags & JOY_RETURNX) + result = joyinfo.dwXpos; + break; + + case KEY_JOY_AXIS_Y: + if (joyinfo.dwFlags & JOY_RETURNY) + result = joyinfo.dwYpos; + break; + + case KEY_JOY_AXIS_Z: + if (joyinfo.dwFlags & JOY_RETURNZ) + result = joyinfo.dwZpos; + break; + + case KEY_JOY_AXIS_RZ: + if (joyinfo.dwFlags & JOY_RETURNR) + result = joyinfo.dwRpos; + break; + } + } + + return result; +} + +double +Joystick::ReadAxisDI(int a) +{ + if (a < 0 || a > 3) + return 0; + + double result = 0; + + switch (map_axis[a]) { + case KEY_JOY_AXIS_X: result = joystate.lX; break; + case KEY_JOY_AXIS_Y: result = joystate.lY; break; + case KEY_JOY_AXIS_Z: result = joystate.lZ; break; + case KEY_JOY_AXIS_RX: result = joystate.lRx; break; + case KEY_JOY_AXIS_RY: result = joystate.lRy; break; + case KEY_JOY_AXIS_RZ: result = joystate.lRz; break; + case KEY_JOY_AXIS_S0: result = joystate.rglSlider[0]; break; + case KEY_JOY_AXIS_S1: result = joystate.rglSlider[1]; break; + } + + if (a < 3) { + // ignore small movements: + if (result > dead_zone) result -= dead_zone; + else if (result < -dead_zone) result += dead_zone; + else result = 0; + + double scale = 1.0 / (32768.0-dead_zone); + + if (result >= 0) + result = sqr(result * scale); + else + result = sqr(result * scale) * -1.0; + + if (inv_axis[a]) + result = -result; + } + else { + result = (result+32768.0) / 65536.0; + + if (inv_axis[a]) + result = 1 - result; + } + + + return result; +} + +double +Joystick::ReadAxisMM(int a) +{ + if (a < 0 || a > 3) + return 0; + + double result = 0; + + switch (map_axis[a]) { + case KEY_JOY_AXIS_X: + if (joyinfo.dwFlags & JOY_RETURNX) + result = joyinfo.dwXpos - 32768; + break; + + case KEY_JOY_AXIS_Y: + if (joyinfo.dwFlags & JOY_RETURNY) + result = joyinfo.dwYpos - 32768; + break; + + case KEY_JOY_AXIS_Z: + if (joyinfo.dwFlags & JOY_RETURNZ) + result = joyinfo.dwZpos - 32768; + break; + + case KEY_JOY_AXIS_RZ: + if (joyinfo.dwFlags & JOY_RETURNR) + result = joyinfo.dwRpos - 32768; + break; + } + + if (a < 3) { + // ignore small movements: + if (result > dead_zone) result -= dead_zone; + else if (result < -dead_zone) result += dead_zone; + else result = 0; + + double scale = 1.0 / (32768.0-dead_zone); + + if (result >= 0) + result = sqr(result * scale); + else + result = sqr(result * scale) * -1.0; + + if (inv_axis[a]) + result = -result; + } + else { + result = (result+32768.0) / 65536.0; + + if (inv_axis[a]) + result = 1 - result; + } + + return result; +} + +// +--------------------------------------------------------------------+ + +void +Joystick::Acquire() +{ + t = x = y = z = p = r = w = 0; + for (int i = 0; i < MotionController::MaxActions; i++) + action[i] = false; + + for (int i = 0; i < 4; i++) + for (int j = 0; j < 4; j++) + hat[i][j] = false; + + if (select == 0) + return; + + //============================================================ + // + // FIRST TRY DIRECT INPUT + + bool acquired = false; + + if (pdi) { + if (idev != select) { + if (ndev < 1) + EnumerateDevices(); + + if (CreateDevice(select) && pdev) + pdev->Acquire(); + } + + if (pdev) { + HRESULT hr = 0; + + hr = pdev->Poll(); + hr = pdev->GetDeviceState(sizeof(joystate), &joystate); + + if (hr == DIERR_INPUTLOST) { + pdev->Acquire(); + + hr = pdev->Poll(); + hr = pdev->GetDeviceState(sizeof(joystate), &joystate); + + if (FAILED(hr)) { + strikes--; + ::Print("Joystick could not re-acquire joystick (%08x)\n", hr); + + // give up before you hurt yourself: + if (strikes <= 0) { + ReleaseDirectInput(); + ndev = 0; + select = 0; + } + + return; + } + } + + for (int i = 0; i < 32; i++) + action[i] = (joystate.rgbButtons[i] & 0x80) != 0; + + double joy_x = ReadAxisDI(0); + double joy_y = ReadAxisDI(1); + double joy_r = rudder ? ReadAxisDI(2) : 0; + double joy_t = throttle ? ReadAxisDI(3) : 0; + + int joy_p = joystate.rgdwPOV[0]; + + ProcessAxes(joy_x, joy_y, joy_r, joy_t); + + for (int i = 0; i < 4; i++) + ProcessHat(i, joystate.rgdwPOV[i]); + + acquired = true; + } + } + + //============================================================ + // + // THEN TRY WINDOWS MULTIMEDIA LIBRARY + + if (!acquired) { + memset(&joyinfo, 0, sizeof(JOYINFOEX)); + joyinfo.dwSize = sizeof(JOYINFOEX); + joyinfo.dwFlags = JOY_RETURNALL; + + HRESULT hr = 0; + + if (select == 1) + hr = joyGetPosEx(JOYSTICKID1, &joyinfo); + + else if (select == 2) + hr = joyGetPosEx(JOYSTICKID2, &joyinfo); + + if (hr != 0) { + Print("\nJoystick::Acquire() joyGetPosEx %d failed (err=%08x)\n\n", select, hr); + select = 0; + } + + action[0] = (joyinfo.dwButtons & JOY_BUTTON1) ? true : false; + action[1] = (joyinfo.dwButtons & JOY_BUTTON2) ? true : false; + action[2] = (joyinfo.dwButtons & JOY_BUTTON3) ? true : false; + action[3] = (joyinfo.dwButtons & JOY_BUTTON4) ? true : false; + + double joy_x = ReadAxisMM(0); + double joy_y = ReadAxisMM(1); + double joy_r = rudder ? ReadAxisMM(2) : 0; + double joy_t = throttle ? ReadAxisMM(3) : 0; + + ProcessAxes(joy_x, joy_y, joy_r, joy_t); + ProcessHat(0, joyinfo.dwPOV); + } + + // lateral translations: + if (KeyDownMap(KEY_PLUS_Y)) y = 1; + else if (KeyDownMap(KEY_MINUS_Y)) y = -1; + + if (KeyDownMap(KEY_PLUS_Z)) z = 1; + else if (KeyDownMap(KEY_MINUS_Z)) z = -1; + + if (KeyDownMap(KEY_MINUS_X)) x = -1; + else if (KeyDownMap(KEY_PLUS_X)) x = 1; + + // button-based turns: + const double steps=10; + static double p1=0, r1=0, w1=0; + + // if roll and yaw are swapped -------------------------- + if (swapped) { + // yaw: + if (KeyDownMap(KEY_ROLL_LEFT)) { if (w1<steps) w1+=1; w = -sqr(w1/steps); } + else if (KeyDownMap(KEY_ROLL_RIGHT)) { if (w1<steps) w1+=1; w = sqr(w1/steps); } + + // roll: + if (KeyDownMap(KEY_YAW_LEFT)) { if (r1<steps) r1+=1; r = sqr(r1/steps); } + else if (KeyDownMap(KEY_YAW_RIGHT)) { if (r1<steps) r1+=1; r = -sqr(r1/steps); } + else w1 = 0; + } + + // else roll and yaw are NOT swapped --------------------- + else { + // roll: + if (KeyDownMap(KEY_ROLL_LEFT)) { if (r1<steps) r1+=1; r = sqr(r1/steps); } + else if (KeyDownMap(KEY_ROLL_RIGHT)) { if (r1<steps) r1+=1; r = -sqr(r1/steps); } + + // yaw left-right + if (KeyDownMap(KEY_YAW_LEFT)) { if (w1<steps) w1+=1; w = -sqr(w1/steps); } + else if (KeyDownMap(KEY_YAW_RIGHT)) { if (w1<steps) w1+=1; w = sqr(w1/steps); } + else w1 = 0; + } + + // pitch -------------------------------------------------- + if (KeyDownMap(KEY_PITCH_UP)) { if (p1<steps) p1+=1; p = -sqr(p1/steps); } + else if (KeyDownMap(KEY_PITCH_DOWN)) { if (p1<steps) p1+=1; p = sqr(p1/steps); } + else p1 = 0; +} + +// +--------------------------------------------------------------------+ + +void +Joystick::ProcessAxes(double joy_x, double joy_y, double joy_r, double joy_t) +{ + int roll_enable = 0; + + joy_y *= -1; + joy_t = 1 - joy_t; + + if (map[KEY_ROLL_ENABLE]) + roll_enable = action[map[KEY_ROLL_ENABLE] - KEY_JOY_1]; + + // if roll and yaw are swapped -------------------------- + if (swapped) { + if (roll_enable) { + w = joy_x; + r = joy_r; + } + else { + w = joy_r; + r = -joy_x; + } + } + + // else roll and yaw are NOT swapped --------------------- + else { + if (roll_enable) { + w = joy_r; + r = joy_x; + } + else { + w = joy_x; + r = -joy_r; + } + } + + p = joy_y; + + // read throttle: + if (throttle) { + static double init_throttle = -1; + static bool latch_throttle = false; + + if (init_throttle < 0) + init_throttle = joy_t; + else if (init_throttle != joy_t) + latch_throttle = true; + + if (latch_throttle) + t = joy_t; + else + t = 0; + } + else { + t = 0; + } +} + +void +Joystick::ProcessHat(int i, DWORD joy_pov) +{ + if (i < 0 || i > 3) return; + + if (LOWORD(joy_pov) == 0xFFFF) + return; + + switch (joy_pov) { + case JOY_POVFORWARD: hat[i][0] = true; break; + case JOY_POVBACKWARD: hat[i][1] = true; break; + case JOY_POVLEFT: hat[i][2] = true; break; + case JOY_POVRIGHT: hat[i][3] = true; break; + + case JOY_POVUPRIGHT: hat[i][0] = true; + hat[i][3] = true; break; + + case JOY_POVDNRIGHT: hat[i][1] = true; + hat[i][3] = true; break; + + case JOY_POVDNLEFT: hat[i][1] = true; + hat[i][2] = true; break; + + case JOY_POVUPLEFT: hat[i][0] = true; + hat[i][2] = true; break; + + default: break; + } +} + +// +--------------------------------------------------------------------+ + +bool Joystick::KeyDown(int key) +{ + if (!joystick) + return false; + + if (key >= KEY_JOY_1 && key <= KEY_JOY_32) + return joystick->action[key - KEY_JOY_1]; + + else if (key >= KEY_POV_0_UP && key <= KEY_POV_0_RIGHT) + return joystick->hat[0][key - KEY_POV_0_UP]; + + else if (key >= KEY_POV_1_UP && key <= KEY_POV_1_RIGHT) + return joystick->hat[1][key - KEY_POV_1_UP]; + + else if (key >= KEY_POV_2_UP && key <= KEY_POV_2_RIGHT) + return joystick->hat[2][key - KEY_POV_2_UP]; + + else if (key >= KEY_POV_3_UP && key <= KEY_POV_3_RIGHT) + return joystick->hat[3][key - KEY_POV_3_UP]; + + return false; +} + +// +--------------------------------------------------------------------+ + +bool Joystick::KeyDownMap(int key) +{ + if (!joystick) + return false; + + if (key >= KEY_MAP_FIRST && key <= KEY_MAP_LAST && joystick->map[key]) + return KeyDown(joystick->map[key]); + + return false; +} + +// +--------------------------------------------------------------------+ + +int Joystick::GetAxisMap(int n) +{ + if (!joystick || n < 0 || n > 3) + return -1; + + return joystick->map_axis[n]; +} + +int Joystick::GetAxisInv(int n) +{ + if (!joystick || n < 0 || n > 3) + return -1; + + return joystick->inv_axis[n]; +} + +// +--------------------------------------------------------------------+ + +void +DirectInputError(const char* msg, HRESULT err) +{ + static int report = 50; + if (report > 0) + report--; + else + return; + + Print(" DirectInput7: %s. [%s]\n", msg, DIErrStr(err)); +} + +static char errstrbuf[128]; + +char* DIErrStr(HRESULT hr) +{ + switch (hr) { + default: + sprintf_s(errstrbuf, "Unrecognized error value = %08x.", hr); + return errstrbuf; + + case DI_OK: + return "No error."; + + case DI_BUFFEROVERFLOW: + return "The device buffer overflowed and some input was lost. This value is equal to the S_FALSE standard COM return value."; + case DI_DOWNLOADSKIPPED: + return "The parameters of the effect were successfully updated, but the effect could not be downloaded because the associated device was not acquired in exclusive mode."; + case DI_EFFECTRESTARTED: + return "The effect was stopped, the parameters were updated, and the effect was restarted."; + case DI_POLLEDDEVICE: + return "The device is a polled device. As a result, device buffering does not collect any data and event notifications is not signaled until the IDirectInputDevice7::Poll method is called."; + case DI_TRUNCATED: + return "The parameters of the effect were successfully updated, but some of them were beyond the capabilities of the device and were truncated to the nearest supported value."; + case DI_TRUNCATEDANDRESTARTED: + return "Equal to DI_EFFECTRESTARTED | DI_TRUNCATED"; + case DIERR_ACQUIRED: + return "The operation cannot be performed while the device is acquired."; + case DIERR_ALREADYINITIALIZED: + return "This object is already initialized"; + case DIERR_BADDRIVERVER: + return "The object could not be created due to an incompatible driver version or mismatched or incomplete driver components."; + case DIERR_BETADIRECTINPUTVERSION: + return "The application was written for an unsupported prerelease version of DirectInput."; + case DIERR_DEVICEFULL: + return "The device is full."; + case DIERR_DEVICENOTREG: + return "The device or device instance is not registered with DirectInput. This value is equal to the REGDB_E_CLASSNOTREG standard COM return value."; + case DIERR_EFFECTPLAYING: + return "The parameters were updated in memory but were not downloaded to the device because the device does not support updating an effect while it is still playing."; + case DIERR_HASEFFECTS: + return "The device cannot be reinitialized because there are still effects attached to it."; + case DIERR_GENERIC: + return "An undetermined error occurred inside the DirectInput subsystem. This value is equal to the E_FAIL standard COM return value."; + case DIERR_HANDLEEXISTS: + return "The device already has an event notification associated with it. This value is equal to the E_ACCESSDENIED standard COM return value."; + case DIERR_INCOMPLETEEFFECT: + return "The effect could not be downloaded because essential information is missing. For example, no axes have been associated with the effect, or no type-specific information has been supplied."; + case DIERR_INPUTLOST: + return "Access to the input device has been lost. It must be reacquired."; + case DIERR_INVALIDPARAM: + return "An invalid parameter was passed to the returning function, or the object was not in a state that permitted the function to be called. This value is equal to the E_INVALIDARG standard COM return value."; + case DIERR_MOREDATA: + return "Not all the requested information fit into the buffer."; + case DIERR_NOAGGREGATION: + return "This object does not support aggregation."; + case DIERR_NOINTERFACE: + return "The specified interface is not supported by the object. This value is equal to the E_NOINTERFACE standard COM return value."; + case DIERR_NOTACQUIRED: + return "The operation cannot be performed unless the device is acquired."; + case DIERR_NOTBUFFERED: + return "The device is not buffered. Set the DIPROP_BUFFERSIZE property to enable buffering."; + case DIERR_NOTDOWNLOADED: + return "The effect is not downloaded."; + case DIERR_NOTEXCLUSIVEACQUIRED: + return "The operation cannot be performed unless the device is acquired in DISCL_EXCLUSIVE mode."; + case DIERR_NOTFOUND: + return "The requested object does not exist."; + case DIERR_NOTINITIALIZED: + return "This object has not been initialized."; + case DIERR_OLDDIRECTINPUTVERSION: + return "The application requires a newer version of DirectInput."; + case DIERR_OUTOFMEMORY: + return "The DirectInput subsystem could not allocate sufficient memory to complete the call. This value is equal to the E_OUTOFMEMORY standard COM return value."; + case DIERR_REPORTFULL: + return "More information was requested to be sent than can be sent to the device."; + case DIERR_UNPLUGGED: + return "The operation could not be completed because the device is not plugged in."; + case DIERR_UNSUPPORTED: + return "The function called is not supported at this time. This value is equal to the E_NOTIMPL standard COM return value."; + } +} + |