mirror of https://github.com/ZDoom/raze-gles.git
583 lines
16 KiB
C++
583 lines
16 KiB
C++
/*
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**
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**
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**---------------------------------------------------------------------------
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** Copyright 2005-2016 Randy Heit
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** All rights reserved.
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**
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** Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions
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** are met:
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**
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** 1. Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** 2. Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in the
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** documentation and/or other materials provided with the distribution.
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** 3. The name of the author may not be used to endorse or promote products
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** derived from this software without specific prior written permission.
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**
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** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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**---------------------------------------------------------------------------
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**
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*/
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// HEADER FILES ------------------------------------------------------------
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#define WIN32_LEAN_AND_MEAN
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#define DIRECTINPUT_VERSION 0x800
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#include <windows.h>
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#include <dinput.h>
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#include "i_input.h"
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#include "d_event.h"
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// MACROS ------------------------------------------------------------------
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#define DINPUT_BUFFERSIZE 32
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// MinGW-w64 (TDM5.1 - 2016/11/21)
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#ifndef DIK_PREVTRACK
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#define DIK_PREVTRACK DIK_CIRCUMFLEX
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#endif
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// TYPES -------------------------------------------------------------------
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class FDInputKeyboard : public FKeyboard
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{
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public:
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FDInputKeyboard();
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~FDInputKeyboard();
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bool GetDevice();
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void ProcessInput();
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protected:
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LPDIRECTINPUTDEVICE8 Device;
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};
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class FRawKeyboard : public FKeyboard
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{
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public:
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FRawKeyboard();
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~FRawKeyboard();
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bool GetDevice();
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bool ProcessRawInput(RAWINPUT *rawinput, int code);
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protected:
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USHORT E1Prefix;
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};
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// EXTERNAL FUNCTION PROTOTYPES --------------------------------------------
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// PUBLIC FUNCTION PROTOTYPES ----------------------------------------------
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// PRIVATE FUNCTION PROTOTYPES ---------------------------------------------
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// EXTERNAL DATA DECLARATIONS ----------------------------------------------
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extern HWND Window;
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extern LPDIRECTINPUT8 g_pdi;
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extern LPDIRECTINPUT g_pdi3;
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extern bool GUICapture;
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// PRIVATE DATA DEFINITIONS ------------------------------------------------
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// Convert DIK_* code to ASCII using Qwerty keymap
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static const uint8_t Convert[256] =
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{
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// 0 1 2 3 4 5 6 7 8 9 A B C D E F
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0, 27, '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', '-', '=', 8, 9, // 0
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'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', 'o', 'p', '[', ']', 13, 0, 'a', 's', // 1
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'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', 39, '`', 0,'\\', 'z', 'x', 'c', 'v', // 2
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'b', 'n', 'm', ',', '.', '/', 0, '*', 0, ' ', 0, 0, 0, 0, 0, 0, // 3
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0, 0, 0, 0, 0, 0, 0, '7', '8', '9', '-', '4', '5', '6', '+', '1', // 4
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'2', '3', '0', '.', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 5
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 6
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 7
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, '=', 0, 0, // 8
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0, '@', ':', '_', 0, 0, 0, 0, 0, 0, 0, 0, 13, 0, 0, 0, // 9
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // A
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0, 0, 0, ',', 0, '/', 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // B
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0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // C
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0, 0, 0, 0, 0, 0, 0, 0
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};
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// PUBLIC DATA DEFINITIONS -------------------------------------------------
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FKeyboard *Keyboard;
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// Set this to false to make keypad-enter a usable separate key.
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CVAR (Bool, k_mergekeys, true, CVAR_ARCHIVE|CVAR_GLOBALCONFIG)
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// CODE --------------------------------------------------------------------
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//==========================================================================
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//
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// FKeyboard - Constructor
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//
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//==========================================================================
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FKeyboard::FKeyboard()
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{
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memset(KeyStates, 0, sizeof(KeyStates));
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}
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//==========================================================================
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//
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// FKeyboard - Destructor
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//
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//==========================================================================
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FKeyboard::~FKeyboard()
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{
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AllKeysUp();
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}
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//==========================================================================
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//
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// FKeyboard :: CheckAndSetKey
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//
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// Returns true if the key was already in the desired state, false if it
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// wasn't.
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//
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//==========================================================================
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bool FKeyboard::CheckAndSetKey(int keynum, INTBOOL down)
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{
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uint8_t *statebyte = &KeyStates[keynum >> 3];
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uint8_t mask = 1 << (keynum & 7);
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if (down)
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{
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if (*statebyte & mask)
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{
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return true;
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}
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*statebyte |= mask;
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return false;
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}
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else
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{
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if (*statebyte & mask)
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{
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*statebyte &= ~mask;
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return false;
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}
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return true;
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}
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}
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//==========================================================================
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//
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// FKeyboard :: AllKeysUp
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//
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// For every key currently marked as down, send a key up event and clear it.
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//
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//==========================================================================
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void FKeyboard::AllKeysUp()
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{
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event_t ev = { 0 };
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ev.type = EV_KeyUp;
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for (int i = 0; i < 256/8; ++i)
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{
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if (KeyStates[i] != 0)
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{
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uint8_t states = KeyStates[i];
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int j = 0;
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KeyStates[i] = 0;
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do
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{
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if (states & 1)
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{
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ev.data1 = (i << 3) + j;
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ev.data2 = Convert[ev.data1];
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D_PostEvent(&ev);
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}
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states >>= 1;
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++j;
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}
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while (states != 0);
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}
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}
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}
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//==========================================================================
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//
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// FKeyboard :: PostKeyEvent
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//
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// Posts a keyboard event, but only if the state is different from what we
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// currently think it is. (For instance, raw keyboard input sends key
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// down events every time the key automatically repeats, so we want to
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// discard those.)
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//
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//==========================================================================
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void FKeyboard::PostKeyEvent(int key, INTBOOL down, bool foreground)
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{
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event_t ev = { 0 };
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// Printf("key=%02x down=%02x\n", key, down);
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// "Merge" multiple keys that are considered to be the same. If the
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// original unmerged key is down, it also needs to go up. (In case
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// somebody was holding the key down when they changed this setting.)
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if (k_mergekeys)
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{
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if (key == DIK_NUMPADENTER || key == DIK_RMENU || key == DIK_RCONTROL)
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{
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k_mergekeys = false;
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PostKeyEvent(key, false, foreground);
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k_mergekeys = true;
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key &= 0x7F;
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}
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else if (key == DIK_RSHIFT)
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{
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k_mergekeys = false;
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PostKeyEvent(key, false, foreground);
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k_mergekeys = true;
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key = DIK_LSHIFT;
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}
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}
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if (key == 0x59)
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{ // Turn kp= on a Mac keyboard into kp= on a PC98 keyboard.
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key = DIK_NUMPADEQUALS;
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}
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// Generate the event, if appropriate.
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if (down)
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{
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if (!foreground || GUICapture)
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{ // Do not generate key down events if we are in the background
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// or in "GUI Capture" mode.
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return;
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}
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ev.type = EV_KeyDown;
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}
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else
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{
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ev.type = EV_KeyUp;
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}
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if (CheckAndSetKey(key, down))
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{ // Key is already down or up.
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return;
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}
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ev.data1 = key;
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ev.data2 = Convert[key];
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D_PostEvent(&ev);
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}
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//==========================================================================
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//
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// FDInputKeyboard - Constructor
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//
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//==========================================================================
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FDInputKeyboard::FDInputKeyboard()
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{
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Device = NULL;
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}
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//==========================================================================
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//
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// FDInputKeyboard - Destructor
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//
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//==========================================================================
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FDInputKeyboard::~FDInputKeyboard()
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{
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if (Device != NULL)
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{
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Device->Release();
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Device = NULL;
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}
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}
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//==========================================================================
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//
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// FDInputKeyboard :: GetDevice
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//
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// Create the device interface and initialize it.
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//
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//==========================================================================
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bool FDInputKeyboard::GetDevice()
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{
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HRESULT hr;
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if (g_pdi3 != NULL)
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{ // DirectInput3 interface
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hr = g_pdi3->CreateDevice(GUID_SysKeyboard, (LPDIRECTINPUTDEVICE*)&Device, NULL);
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}
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else if (g_pdi != NULL)
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{ // DirectInput8 interface
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hr = g_pdi->CreateDevice(GUID_SysKeyboard, &Device, NULL);
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}
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else
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{
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hr = -1;
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}
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if (FAILED(hr))
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{
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return false;
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}
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// Yes, this is a keyboard.
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hr = Device->SetDataFormat(&c_dfDIKeyboard);
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if (FAILED(hr))
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{
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ufailit:
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Device->Release();
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Device = NULL;
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return false;
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}
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hr = Device->SetCooperativeLevel(Window, DISCL_NONEXCLUSIVE | DISCL_BACKGROUND);
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if (FAILED(hr))
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{
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goto ufailit;
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}
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// Set buffer size so we can use buffered input.
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DIPROPDWORD prop;
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prop.diph.dwSize = sizeof(prop);
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prop.diph.dwHeaderSize = sizeof(prop.diph);
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prop.diph.dwObj = 0;
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prop.diph.dwHow = DIPH_DEVICE;
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prop.dwData = DINPUT_BUFFERSIZE;
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hr = Device->SetProperty(DIPROP_BUFFERSIZE, &prop.diph);
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if (FAILED(hr))
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{
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goto ufailit;
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}
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Device->Acquire();
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return true;
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}
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//==========================================================================
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//
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// FDInputKeyboard :: ProcessInput
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//
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//==========================================================================
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void FDInputKeyboard::ProcessInput()
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{
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DIDEVICEOBJECTDATA od;
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DWORD dwElements;
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HRESULT hr;
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bool foreground = (GetForegroundWindow() == Window);
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for (;;)
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{
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DWORD cbObjectData = g_pdi3 ? sizeof(DIDEVICEOBJECTDATA_DX3) : sizeof(DIDEVICEOBJECTDATA);
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dwElements = 1;
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hr = Device->GetDeviceData(cbObjectData, &od, &dwElements, 0);
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if (hr == DIERR_INPUTLOST || hr == DIERR_NOTACQUIRED)
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{
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Device->Acquire();
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hr = Device->GetDeviceData(cbObjectData, &od, &dwElements, 0);
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}
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if (FAILED(hr) || !dwElements)
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{
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break;
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}
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if (od.dwOfs >= 1 && od.dwOfs <= 255)
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{
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PostKeyEvent(od.dwOfs, od.dwData & 0x80, foreground);
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}
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}
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}
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/**************************************************************************/
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/**************************************************************************/
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//==========================================================================
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//
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// FRawKeyboard - Constructor
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//
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//==========================================================================
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FRawKeyboard::FRawKeyboard()
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{
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E1Prefix = 0;
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}
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//==========================================================================
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//
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// FRawKeyboard - Destructor
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//
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//==========================================================================
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FRawKeyboard::~FRawKeyboard()
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{
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RAWINPUTDEVICE rid;
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rid.usUsagePage = HID_GENERIC_DESKTOP_PAGE;
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rid.usUsage = HID_GDP_KEYBOARD;
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rid.dwFlags = RIDEV_REMOVE;
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rid.hwndTarget = NULL;
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RegisterRawInputDevices(&rid, 1, sizeof(rid));
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}
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//==========================================================================
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//
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// FRawKeyboard :: GetDevice
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//
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// Ensure the API is present and we can listen for keyboard input.
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//
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//==========================================================================
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bool FRawKeyboard::GetDevice()
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{
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RAWINPUTDEVICE rid;
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rid.usUsagePage = HID_GENERIC_DESKTOP_PAGE;
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rid.usUsage = HID_GDP_KEYBOARD;
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rid.dwFlags = RIDEV_INPUTSINK;
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rid.hwndTarget = Window;
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if (!RegisterRawInputDevices(&rid, 1, sizeof(rid)))
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{
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return false;
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}
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return true;
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}
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//==========================================================================
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//
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// FRawKeyboard :: ProcessRawInput
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//
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// Convert scan codes to DirectInput key codes. For the most part, this is
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// straight forward: Scan codes without any prefix are passed unmodified.
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// Scan codes with an 0xE0 prefix byte are generally passed by ORing them
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// with 0x80. And scan codes with an 0xE1 prefix are the annoying Pause key
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// which will generate another scan code that looks like Num Lock.
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//
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// This is a bit complicated only because the state of PC key codes is a bit
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// of a mess. Keyboards may use simpler codes internally, but for the sake
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// of compatibility, programs are presented with XT-compatible codes. This
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// means that keys which were originally a shifted form of another key and
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// were split off into a separate key all their own, or which were formerly
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// a separate key and are now part of another key (most notable PrtScn and
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// SysRq), will still generate code sequences that XT-era software will
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// still perceive as the original sequences to use those keys.
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//
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//==========================================================================
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bool FRawKeyboard::ProcessRawInput(RAWINPUT *raw, int code)
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{
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if (raw->header.dwType != RIM_TYPEKEYBOARD)
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{
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return false;
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}
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int keycode = raw->data.keyboard.MakeCode;
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if (keycode == 0 && (raw->data.keyboard.Flags & RI_KEY_E0))
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{ // Even if the make code is 0, we might still be able to extract a
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// useful key from the message.
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if (raw->data.keyboard.VKey >= VK_BROWSER_BACK && raw->data.keyboard.VKey <= VK_LAUNCH_APP2)
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{
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static const uint8_t MediaKeys[VK_LAUNCH_APP2 - VK_BROWSER_BACK + 1] =
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{
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DIK_WEBBACK, DIK_WEBFORWARD, DIK_WEBREFRESH, DIK_WEBSTOP,
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DIK_WEBSEARCH, DIK_WEBFAVORITES, DIK_WEBHOME,
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DIK_MUTE, DIK_VOLUMEDOWN, DIK_VOLUMEUP,
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DIK_NEXTTRACK, DIK_PREVTRACK, DIK_MEDIASTOP, DIK_PLAYPAUSE,
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DIK_MAIL, DIK_MEDIASELECT, DIK_MYCOMPUTER, DIK_CALCULATOR
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};
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keycode = MediaKeys[raw->data.keyboard.VKey - VK_BROWSER_BACK];
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}
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}
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if (keycode < 1 || keycode > 0xFF)
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{
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return false;
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}
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if (raw->data.keyboard.Flags & RI_KEY_E1)
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{
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E1Prefix = raw->data.keyboard.MakeCode;
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return false;
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}
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if (raw->data.keyboard.Flags & RI_KEY_E0)
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{
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if (keycode == DIK_LSHIFT || keycode == DIK_RSHIFT)
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{ // Ignore fake shifts.
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return false;
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}
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keycode |= 0x80;
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}
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// The sequence for an unshifted pause is E1 1D 45 (E1 Prefix +
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// Control + Num Lock).
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if (E1Prefix)
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{
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if (E1Prefix == 0x1D && keycode == DIK_NUMLOCK)
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{
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keycode = DIK_PAUSE;
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E1Prefix = 0;
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}
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else
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{
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E1Prefix = 0;
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return false;
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}
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}
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// If you press Ctrl+Pause, the keyboard sends the Break make code
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// E0 46 instead of the Pause make code.
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if (keycode == 0xC6)
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{
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keycode = DIK_PAUSE;
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}
|
|
// If you press Ctrl+PrtScn (to get SysRq), the keyboard sends
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// the make code E0 37. If you press PrtScn without any modifiers,
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|
// it sends E0 2A E0 37. And if you press Alt+PrtScn, it sends 54
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|
// (which is undefined in the charts I can find.)
|
|
if (keycode == 0x54)
|
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{
|
|
keycode = DIK_SYSRQ;
|
|
}
|
|
// If you press any keys in the island between the main keyboard
|
|
// and the numeric keypad with Num Lock turned on, they generate
|
|
// a fake shift before their actual codes. They do not generate this
|
|
// fake shift if Num Lock is off. We unconditionally discard fake
|
|
// shifts above, so we don't need to do anything special for these,
|
|
// since they are also prefixed by E0 so we can tell them apart from
|
|
// their keypad counterparts.
|
|
|
|
// Okay, we're done translating the keycode. Post it (or ignore it.)
|
|
PostKeyEvent(keycode, !(raw->data.keyboard.Flags & RI_KEY_BREAK), code == RIM_INPUT);
|
|
return true;
|
|
}
|
|
|
|
//==========================================================================
|
|
//
|
|
// I_StartupKeyboard
|
|
//
|
|
//==========================================================================
|
|
|
|
void I_StartupKeyboard()
|
|
{
|
|
Keyboard = new FRawKeyboard;
|
|
if (Keyboard->GetDevice())
|
|
{
|
|
return;
|
|
}
|
|
delete Keyboard;
|
|
Keyboard = new FDInputKeyboard;
|
|
if (!Keyboard->GetDevice())
|
|
{
|
|
delete Keyboard;
|
|
}
|
|
}
|
|
|