mirror of
https://github.com/mauiaaron/apple2.git
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495 lines
17 KiB
C
495 lines
17 KiB
C
/*
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* Apple // emulator for Linux: Keyboard handler
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*
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* Copyright 1994 Alexander Jean-Claude Bottema
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* Copyright 1995 Stephen Lee
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* Copyright 1997, 1998 Aaron Culliney
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* Copyright 1998, 1999, 2000 Michael Deutschmann
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*
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* This software package is subject to the GNU General Public License
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* version 2 or later (your choice) as published by the Free Software
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* Foundation.
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*
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* THERE ARE NO WARRANTIES WHATSOEVER.
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*
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*/
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#include "common.h"
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/* from misc.c */
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extern uid_t user, privileged;
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/* mutex used to synchronize between cpu and main threads */
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pthread_mutex_t interface_mutex = PTHREAD_MUTEX_INITIALIZER;
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pthread_cond_t ui_thread_cond = PTHREAD_COND_INITIALIZER;
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pthread_cond_t cpu_thread_cond = PTHREAD_COND_INITIALIZER;
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#ifdef LINUX_JOYSTICK
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#include <linux/joystick.h>
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extern int raw_js_x;
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extern int raw_js_y;
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#endif
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static int next_key = -1;
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static int last_scancode = -1;
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bool caps_lock = false; /* is enabled */
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static bool in_interface = false;
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/* ----------------------------------------------------
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//e Keymap. Mapping scancodes to Apple //e US Keyboard
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---------------------------------------------------- */
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#define MAP_SIZE 128
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static int apple_iie_keymap_plain[MAP_SIZE] =
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{ -1, kESC, '1', '2', '3', '4', '5', '6', /* 00-07 */
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'7', '8', '9', '0', '-', '=', kLT, kTAB, /* 08-15 */
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'q', 'w', 'e', 'r', 't', 'y', 'u', 'i', /* 16-23 */
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'o', 'p', '[', ']', kRET, -1, 'a', 's', /* 24-31 */
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'd', 'f', 'g', 'h', 'j', 'k', 'l', ';', /* 32-39 */
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'\'', '`', -1,'\\', 'z', 'x', 'c', 'v', /* 40-47 */
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'b', 'n', 'm', ',', '.', '/', -1, -1, /* 48-55 */
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JB0, ' ', -1, kF1, kF2, kF3, kF4, kF5, /* 56-63 */
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kF6, kF7, kF8, kF9, kF10, kF11, kF12, JUL, /* 64-71 */
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J_U, JUR, -1, J_L, J_C, J_R, -1, JDL, /* 72-79 */
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J_D, JDR, -1, -1, -1, kF11, kF12, -1, /* 80-87 */
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-1, -1, -1, -1, -1, -1, -1, -1, /* 88-95 */
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-1, -1, -1, -1, JB1, -1, kHOME, kUP, /* 96-103 */
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kPGUP, kLT, kRT, kEND, kDN, kPGDN, JB2, kDEL, /* 104-111 */
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-1, -1, -1, -1, -1, -1, -1, kPAUSE, /* 112-119 */
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-1, -1, -1, -1, -1, -1, -1, -1 }; /* 120-127 */
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// TODO FIXME : remove magic constants and verify ctrl-keys
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static int apple_iie_keymap_ctrl[MAP_SIZE] =
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{ -1, kESC, '1', '2', '3', '4', '5', '6', /* 00-07 */
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'7', '8', '9', '0', '-', '=', kLT, kTAB, /* 08-15 */
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17, 23, 5, 18, 20, 25, kRT, kTAB, /* 16-23 */
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15, 16, kESC, 29, kRET, -1, 1, 19, /* 24-31 */
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4, 6, 7, kLT, kDN, kUP, 12, ';', /* 32-39 */
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'\'', '`', -1,'\\', 26, 24, 3, 22, /* 40-47 */
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2, 14, kRET, ',', '.', '/', -1, -1, /* 48-55 */
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JB0, ' ', -1, kF1, kF2, kF3, kF4, kF5, /* 56-63 */
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kF6, kF7, kF8, kF9, kF10, kF11, kF12, JUL, /* 64-71 */
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J_U, JUR, -1, J_L, J_C, J_R, -1, JDL, /* 72-79 */
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J_D, JDR, -1, -1, -1, kF11, kF12, -1, /* 80-87 */
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-1, -1, -1, -1, -1, -1, -1, -1, /* 88-95 */
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-1, -1, -1, -1, JB1, -1, kHOME, kUP, /* 96-103 */
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kPGUP, kLT, kRT, kEND, kDN, kPGDN, JB2, kDEL, /* 104-111 */
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-1, -1, -1, -1, -1, -1, -1, kPAUSE, /* 112-119 */
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-1, -1, -1, -1, -1, -1, -1, -1 }; /* 120-127 */
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static int apple_iie_keymap_shifted[MAP_SIZE] =
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{ -1, kESC, '!', '@', '#', '$', '%', '^', /* 00-07 */
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'&', '*', '(', ')', '_', '+', kLT, kTAB, /* 08-15 */
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'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', /* 16-23 */
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'O', 'P', '{', '}', kRET, -1, 'A', 'S', /* 24-31 */
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'D', 'F', 'G', 'H', 'J', 'K', 'L', ':', /* 32-39 */
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'"', '~', -1, '|', 'Z', 'X', 'C', 'V', /* 40-47 */
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'B', 'N', 'M', '<', '>', '?', -1, -1, /* 48-55 */
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JB0, ' ', -1, kF1, kF2, kF3, kF4, kF5, /* 56-63 */
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kF6, kF7, kF8, kF9, kF10, kF11, kF12, JUL, /* 64-71 */
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J_U, JUR, -1, J_L, J_C, J_R, -1, JDL, /* 72-79 */
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J_D, JDR, -1, -1, -1, kF11, kF12, -1, /* 80-87 */
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-1, -1, -1, -1, -1, -1, -1, -1, /* 88-95 */
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-1, -1, -1, -1, JB1, -1, kHOME, kUP, /* 96-103 */
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kPGUP, kLT, kRT, kEND, kDN, kPGDN, JB2, kDEL, /* 104-111 */
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-1, -1, -1, -1, -1, -1, -1, kPAUSE, /* 112-119 */
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-1, -1, -1, -1, -1, -1, -1, -1 }; /* 120-127 */
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static int apple_iie_keymap_caps[MAP_SIZE] =
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{ -1, kESC, '1', '2', '3', '4', '5', '6', /* 00-07 */
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'7', '8', '9', '0', '-', '=', kLT, kTAB, /* 08-15 */
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'Q', 'W', 'E', 'R', 'T', 'Y', 'U', 'I', /* 16-23 */
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'O', 'P', '[', ']', kRET, -1, 'A', 'S', /* 24-31 */
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'D', 'F', 'G', 'H', 'J', 'K', 'L', ';', /* 32-39 */
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'\'', '`', -1,'\\', 'Z', 'X', 'C', 'V', /* 40-47 */
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'B', 'N', 'M', ',', '.', '/', -1, -1, /* 48-55 */
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JB0, ' ', -1, kF1, kF2, kF3, kF4, kF5, /* 56-63 */
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kF6, kF7, kF8, kF9, kF10, kF11, kF12, JUL, /* 64-71 */
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J_U, JUR, -1, J_L, J_C, J_R, -1, JDL, /* 72-79 */
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J_D, JDR, -1, -1, -1, kF11, kF12, -1, /* 80-87 */
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-1, -1, -1, -1, -1, -1, -1, -1, /* 88-95 */
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-1, -1, -1, -1, JB1, -1, kHOME, kUP, /* 96-103 */
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kPGUP, kLT, kRT, kEND, kDN, kPGDN, JB2, kDEL, /* 104-111 */
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-1, -1, -1, -1, -1, -1, -1, kPAUSE, /* 112-119 */
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-1, -1, -1, -1, -1, -1, -1, -1 }; /* 120-127 */
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// TODO FIXME : remove magic constants and verify ctrl-keys
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static int apple_iie_keymap_shift_ctrl[MAP_SIZE] =
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{ -1, kESC, '1', 0, '3', '4', '5', 30, /* 00-07 */
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'7', '8', '9', '0', 31, '=', kLT, kTAB, /* 08-15 */
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17, 23, 5, 18, 20, 25, kRT, kTAB, /* 16-23 */
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15, 16, kESC, 29, kRET, -1, 1, 19, /* 24-31 */
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4, 6, 7, kLT, kDN, kUP, 12, ';', /* 32-39 */
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'\'', '`', 28, -1, 26, 24, 3, 22, /* 40-47 */
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2, 14, kRET, ',', '.', '/', -1, -1, /* 48-55 */
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JB0, ' ', -1, kF1, kF2, kF3, kF4, kF5, /* 56-63 */
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kF6, kF7, kF8, kF9, kF10, kF11, kF12, JUL, /* 64-71 */
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J_U, JUR, -1, J_L, J_C, J_R, -1, JDL, /* 72-79 */
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J_D, JDR, -1, -1, -1, kF11, kF12, -1, /* 80-87 */
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-1, -1, -1, -1, -1, -1, -1, -1, /* 88-95 */
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-1, -1, -1, -1, JB1, -1, kHOME, kUP, /* 96-103 */
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kPGUP, kLT, kRT, kEND, kDN, kPGDN, JB2, kDEL, /* 104-111 */
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-1, -1, -1, -1, -1, -1, -1, kPAUSE, /* 112-119 */
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-1, -1, -1, -1, -1, -1, -1, -1 }; /* 120-127 */
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static char key_pressed[ 256 ] = { 0 };
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/* -------------------------------------------------------------------------
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convert ascii character to scancode
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------------------------------------------------------------------------- */
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static int scode_map[MAP_SIZE] =
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{ -1, -1, -1, -1, -1, -1, -1, -1, /* 00-07 */
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SCODE_BS, SCODE_TAB, -1, -1, -1, SCODE_RET, -1, -1, /* 08-15 */
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-1, -1, -1, -1, -1, -1, -1, -1, /* 16-23 */
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-1, -1, -1, SCODE_ESC, -1, -1, -1, -1, /* 24-31 */
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/* */57, /*!*/2 , /*"*/40, /*#*/4 , /*$*/5 , /*%*/6 , /*&*/8 , /*'*/40, /* 32-39 */
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/*(*/10, /*)*/11, /***/9 , /*+*/13, /*,*/51, /*-*/12, /*.*/52, /*/*/53, /* 40-47 */
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/*0*/11, /*1*/2 , /*2*/3 , /*3*/4 , /*4*/5 , /*5*/6 , /*6*/7 , /*7*/8 , /* 48-55 */
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/*8*/9 , /*9*/10, /*:*/39, /*;*/39, /*<*/51, /*=*/13, /*>*/52, /*?*/53, /* 56-63 */
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/*@*/3 , /*A*/30, /*B*/48, /*C*/46, /*D*/32, /*E*/18, /*F*/33, /*G*/34, /* 64-71 */
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/*H*/35, /*I*/23, /*J*/36, /*K*/37, /*L*/38, /*M*/50, /*N*/49, /*O*/24, /* 72-79 */
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/*P*/25, /*Q*/16, /*R*/19, /*S*/31, /*T*/20, /*U*/22, /*V*/47, /*W*/17, /* 80-87 */
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/*X*/45, /*Y*/21, /*Z*/44, /*[*/26, /*\*/43, /*]*/27, /*^*/7 , /*_*/12, /* 88-95 */
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/*`*/41, /*a*/30, /*b*/48, /*c*/46, /*d*/32, /*e*/18, /*f*/33, /*g*/34, /* 96-103 */
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/*h*/35, /*i*/23, /*j*/36, /*k*/37, /*l*/38, /*m*/50, /*n*/49, /*o*/24, /* 104-111 */
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/*p*/25, /*q*/16, /*r*/19, /*s*/31, /*t*/20, /*u*/22, /*v*/47, /*w*/17, /* 112-119 */
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/*x*/45, /*y*/21, /*z*/44, /*{*/26, /*|*/43, /*}*/27, /*~*/41, SCODE_DEL }; /* 120-127 */
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int c_keys_ascii_to_scancode(int c)
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{
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return scode_map[c&0x7f];
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}
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int c_keys_is_shifted()
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{
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return key_pressed[SCODE_L_SHIFT] || key_pressed[SCODE_R_SHIFT];
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}
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/* -------------------------------------------------------------------------
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Handle input : keys and joystick.
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------------------------------------------------------------------------- */
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void c_keys_handle_input(int scancode, int pressed)
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{
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int *keymap = NULL;
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assert(scancode < 0x80);
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if (scancode >= 0)
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{
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last_scancode = scancode;
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if ((key_pressed[ SCODE_L_SHIFT ] || key_pressed[ SCODE_R_SHIFT ]) &&
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(key_pressed[ SCODE_L_CTRL ] || key_pressed[ SCODE_R_CTRL ]))
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{
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keymap = apple_iie_keymap_shift_ctrl;
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}
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else if (key_pressed[ SCODE_L_CTRL ] || key_pressed[ SCODE_R_CTRL ])
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{
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keymap = apple_iie_keymap_ctrl;
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}
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else if (key_pressed[ SCODE_L_SHIFT ] || key_pressed[ SCODE_R_SHIFT ])
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{
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keymap = apple_iie_keymap_shifted;
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}
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else if (caps_lock)
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{
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keymap = apple_iie_keymap_caps;
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}
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else
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{
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keymap = apple_iie_keymap_plain;
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}
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if (pressed)
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{
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key_pressed[ scancode ] = 1;
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switch (keymap[ scancode ])
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{
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case JB0:
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joy_button0 = 0xff; /* open apple */
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break;
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case JB1:
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joy_button1 = 0xff; /* closed apple */
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break;
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default:
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next_key = keymap[scancode];
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break;
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}
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}
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else
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{
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key_pressed[ scancode ] = 0;
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switch (keymap[ scancode ])
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{
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case JB0:
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joy_button0 = 0x00;
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break;
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case JB1:
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joy_button1 = 0x00;
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break;
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default:
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break;
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}
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}
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}
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// key input consumption
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if ((next_key >= 0) && !in_interface)
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{
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do {
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int current_key = next_key;
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next_key = -1;
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if (current_key < 128)
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{
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apple_ii_64k[0][0xC000] = current_key | 0x80;
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apple_ii_64k[1][0xC000] = current_key | 0x80;
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break;
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}
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if (current_key == kF9)
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{
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timing_toggle_cpu_speed();
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break;
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}
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if (current_key == kEND)
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{
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if (key_pressed[ SCODE_L_CTRL ] || key_pressed[ SCODE_R_CTRL ])
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{
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cpu65_interrupt(ResetSig);
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}
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break;
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}
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if ( !(c_keys_is_interface_key(current_key) || (current_key == kPAUSE)) )
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{
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break;
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}
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pthread_mutex_lock(&interface_mutex);
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#ifdef AUDIO_ENABLED
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SoundSystemPause();
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#endif
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in_interface = true;
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switch (current_key)
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{
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#ifdef INTERFACE_CLASSIC
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case kF1:
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c_interface_select_diskette( 0 );
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break;
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case kF2:
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c_interface_select_diskette( 1 );
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break;
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#endif
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case kPAUSE:
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while (c_mygetch(1) == -1)
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{
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struct timespec ts = { .tv_sec=0, .tv_nsec=1 };
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nanosleep(&ts, NULL);
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}
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break;
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#ifdef INTERFACE_CLASSIC
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case kF5:
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c_interface_keyboard_layout();
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break;
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#ifdef DEBUGGER
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case kF7:
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c_interface_debugging();
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break;
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#endif
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case kF8:
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c_interface_credits();
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break;
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case kF10:
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c_interface_parameters();
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break;
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#endif
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default:
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break;
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}
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#ifdef AUDIO_ENABLED
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SoundSystemUnpause();
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#endif
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c_joystick_reset();
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pthread_mutex_unlock(&interface_mutex);
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in_interface = false;
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} while(0);
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}
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// joystick processing
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if (joy_mode == JOY_OFF)
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{
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joy_x = joy_y = 0xFF;
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}
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#if defined(KEYPAD_JOYSTICK)
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// Keypad emulated joystick relies on "raw" keyboard input
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else if (joy_mode == JOY_KPAD)
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{
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bool joy_axis_unpressed = !( key_pressed[SCODE_KPAD_U] || key_pressed[SCODE_KPAD_D] || key_pressed[SCODE_KPAD_L] || key_pressed[SCODE_KPAD_R] ||
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key_pressed[SCODE_KPAD_UL] || key_pressed[SCODE_KPAD_DL] || key_pressed[SCODE_KPAD_UR] || key_pressed[SCODE_KPAD_DR] ||
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// and allow regular PC arrow keys to manipulate joystick...
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key_pressed[SCODE_U] || key_pressed[SCODE_D] || key_pressed[SCODE_L] || key_pressed[SCODE_R]);
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if (key_pressed[ SCODE_KPAD_C ] || (auto_recenter && joy_axis_unpressed))
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{
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joy_x = HALF_JOY_RANGE;
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joy_y = HALF_JOY_RANGE;
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}
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if (key_pressed[ SCODE_KPAD_UL ] || key_pressed[ SCODE_KPAD_U ] || key_pressed[ SCODE_KPAD_UR ] ||/* regular arrow up */key_pressed[ SCODE_U ])
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{
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if (joy_y > joy_step)
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{
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joy_y -= joy_step;
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}
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else
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{
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joy_y = 0;
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}
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}
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if (key_pressed[ SCODE_KPAD_DL ] || key_pressed[ SCODE_KPAD_D ] || key_pressed[ SCODE_KPAD_DR ] ||/* regular arrow dn */key_pressed[ SCODE_D ])
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{
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if (joy_y < JOY_RANGE - joy_step)
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{
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joy_y += joy_step;
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}
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else
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{
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joy_y = JOY_RANGE-1;
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}
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}
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if (key_pressed[ SCODE_KPAD_UL ] || key_pressed[ SCODE_KPAD_L ] || key_pressed[ SCODE_KPAD_DL ] ||/* regular arrow l */key_pressed[ SCODE_L ])
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{
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if (joy_x > joy_step)
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{
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joy_x -= joy_step;
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}
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else
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{
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joy_x = 0;
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}
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}
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if (key_pressed[ SCODE_KPAD_UR ] || key_pressed[ SCODE_KPAD_R ] || key_pressed[ SCODE_KPAD_DR ] ||/* regular arrow r */key_pressed[ SCODE_R ])
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{
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if (joy_x < JOY_RANGE - joy_step)
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{
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joy_x += joy_step;
|
|
}
|
|
else
|
|
{
|
|
joy_x = JOY_RANGE-1;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if defined(LINUX_JOYSTICK)
|
|
else if ((joy_mode == JOY_PCJOY) && !(js_fd < 0))
|
|
{
|
|
if (read(js_fd, &js, JS_RETURN) == -1)
|
|
{
|
|
// error
|
|
}
|
|
|
|
raw_js_x = js.x;
|
|
raw_js_y = js.y;
|
|
|
|
int x_val = (js.x < js_center_x)
|
|
? (js.x - js_offset_x) * js_adjustlow_x
|
|
: (js.x - js_center_x) * js_adjusthigh_x + HALF_JOY_RANGE;
|
|
|
|
int y_val = (js.y < js_center_y)
|
|
? (js.y - js_offset_y) * js_adjustlow_y
|
|
: (js.y - js_center_y) * js_adjusthigh_y + HALF_JOY_RANGE;
|
|
|
|
joy_y = (y_val > 0xff) ? 0xff : (y_val < 0) ? 0 : y_val;
|
|
joy_x = (x_val > 0xff) ? 0xff : (x_val < 0) ? 0 : x_val;
|
|
|
|
/* almost_x = (x_val > 0xff) ? 0xff : (x_val < 0) ? 0 : x_val; */
|
|
/* adj_x = (3-(joy_y/0x40)) + 10; */
|
|
/* turnpt_x = joy_y + adj_x; */
|
|
/* almost_x = (almost_x < turnpt_x) */
|
|
/* ? almost_x */
|
|
/* : (almost_x - turnpt_x) * adjusthigh_x; */
|
|
|
|
/* joy_x = (almost_x > 0xff) ? 0xff : (almost_x < 0) ? 0 : almost_x; */
|
|
|
|
/* sample buttons only if apple keys aren't pressed. keys get set to
|
|
* 0xff, and js buttons are set to 0x80. */
|
|
if (!(joy_button0 & 0x7f))
|
|
{
|
|
joy_button0 = (js.buttons & 0x01) ? 0x80 : 0x0;
|
|
}
|
|
|
|
if (!(joy_button1 & 0x7f))
|
|
{
|
|
joy_button1 = (js.buttons & 0x02) ? 0x80 : 0x0;
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
int c_rawkey()
|
|
{
|
|
return last_scancode;
|
|
}
|
|
|
|
int c_mygetch(int block)
|
|
{
|
|
int retval;
|
|
|
|
if (block)
|
|
{
|
|
while (next_key == -1)
|
|
{
|
|
static struct timespec ts = { .tv_sec=0, .tv_nsec=33333333 };
|
|
nanosleep(&ts, NULL); // 30Hz framerate
|
|
}
|
|
}
|
|
|
|
retval = next_key;
|
|
next_key = -1;
|
|
|
|
return retval;
|
|
}
|
|
|
|
void c_keys_set_key(int key)
|
|
{
|
|
next_key = key;
|
|
}
|
|
|
|
bool c_keys_is_interface_key(int key)
|
|
{
|
|
switch (key)
|
|
{
|
|
case kF1:
|
|
case kF2:
|
|
case kF5:
|
|
#ifdef DEBUGGER
|
|
case kF7:
|
|
#endif
|
|
case kF8:
|
|
case kF10:
|
|
return true;
|
|
default:
|
|
break;
|
|
}
|
|
return false;
|
|
}
|
|
|