/* * Display_Acorn.h - C64 graphics display, emulator window handling, * RISC OS specific stuff * * Frodo (C) 1994-1997,2002-2005 Christian Bauer * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include "C64.h" #include "ROlib.h" #include "AcornGUI.h" #include "SAM.h" #include "VIC.h" // (from Display_x.i) /* C64 keyboard matrix: Bit 7 6 5 4 3 2 1 0 0 CUD F5 F3 F1 F7 CLR RET DEL 1 SHL E S Z 4 A W 3 2 X T F C 6 D R 5 3 V U H B 8 G Y 7 4 N O K M 0 J I 9 5 , @ : . - L P + 6 / ^ = SHR HOM ; * £ 7 R/S Q C= SPC 2 CTL <- 1 */ #define IntKey_MinCode 3 // Scan from ShiftLeft (leave out Shift, Ctrl, Alt) #define IntKey_MaxCode 124 #define IntKey_Copy 105 // Maps internal keyboard numbers (Acorn) to C64 keyboard-matrix. // Format: top nibble - row#, bottom nibble - column (bit#). // Entry == 0xff <==> don't map char KeysAcornToCBM[] = { 0x17, 0x72, 0x75, 0x17, // 0 - 3: SHL, CTRL, ALT(C=), SHL 0x72, 0x75, 0x64, 0x72, // 4 - 7: CTRL, ALT, SHR, CTRL 0x75, 0xff, 0xff, 0xff, // 8 - 11: ALT, MouseSlct, MouseMen, MouseAdj 0xff, 0xff, 0xff, 0xff, // 12 - 15: dummies 0x76, 0x10, 0x13, 0x20, // 16 - 19: q, 3,4,5 0x03, 0x33, 0xff, 0x53, // 20 - 23: F4(F7), 8, F7, - 0x23, 0x02, 0xff, 0xff, // 24 - 27: 6, crsrL, num6, num7 0xff, 0xff, 0xff, 0xff, // 28 - 31: F11, F12, F10, ScrLock 0xff, 0x11, 0x16, 0x26, // 32 - 35: Print, w, e, t 0x30, 0x41, 0x40, 0x43, // 36 - 39: 7, i, 9, 0 0x53, 0x07, 0xff, 0xff, // 40 - 43: -, crsrD, num8, num9 0x77, 0x71, 0x60, 0x00, // 44 - 47: break, `, £, DEL 0x70, 0x73, 0x22, 0x21, // 48 - 51: 1, 2, d, r 0x23, 0x36, 0x46, 0x51, // 52 - 55: 6, u, o, p 0x56, 0x07, 0x50, 0x53, // 56 - 59: [(@), crsrU, num+(+), num-(-) 0xff, 0x00, 0x63, 0xff, // 60 - 63: numENTER, insert, home, pgUp 0x17, 0x12, 0x27, 0x25, // 64 - 67: capsLCK, a, x, f 0x31, 0x42, 0x45, 0x73, // 68 - 71: y, j, k, 2 0x55, 0x01, 0xff, 0xff, // 72 - 75: ;(:), RET, num/, dummy 0xff, 0xff, 0xff, 0x62, // 76 - 79: num., numLCK, pgDown, '(;) 0xff, 0x15, 0x24, 0x32, // 80 - 83: dummy, s, c, g 0x35, 0x47, 0x52, 0x55, // 84 - 87: h, n, l, ;(:) 0x61, 0x00, 0xff, 0xff, // 88 - 91: ](*), Delete, num#, num* 0xff, 0x65, 0xff, 0xff, // 92 - 95: dummy, =, dummies 0x72, 0x14, 0x74, 0x37, // 96 - 99: TAB(CTRL), z, SPACE, v 0x34, 0x44, 0x57, 0x54, // 100-103: b, m, ',', . 0x67, 0xff, 0xff, 0xff, // 104-107: /, Copy, num0, num1 0xff, 0xff, 0xff, 0xff, // 108-111: num3, dummies 0x77, 0x04, 0x05, 0x06, // 112-115: ESC, F1(F1), F2(F3), F3(F5) 0xff, 0xff, 0xff, 0xff, // 116-119: F5, F6, F8, F9 0x66, 0x02, 0xff, 0xff, // 120-123: \(^), crsrR, num4, num5 0xff, 0xff, 0xff, 0xff // 124-127: num2, dummies }; // Special keycodes that have to be processed seperately: #define IntKey_CrsrL 25 #define IntKey_CrsrR 121 #define IntKey_CrsrU 57 #define IntKey_CrsrD 41 #define IntKey_Insert 61 #define IntKey_NumLock 77 #define IntKey_F5 116 #define IntKey_F6 117 #define IntKey_F7 22 #define IntKey_F8 118 #define IntKey_PageUp 63 #define IntKey_PageDown 78 #define IntKey_NumSlash 74 #define IntKey_NumStar 91 #define IntKey_NumCross 90 #define KeyJoy1_Up 108 // num3 #define KeyJoy1_Down 76 // num. #define KeyJoy1_Left 107 // num1 #define KeyJoy1_Right 124 // num2 #define KeyJoy1_Fire 60 // numReturn #define KeyJoy2_Up 67 // "f" #define KeyJoy2_Down 82 // "c" #define KeyJoy2_Left 97 // "z" #define KeyJoy2_Right 66 // "x" #define KeyJoy2_Fire 83 // "g" C64Display::C64Display(C64 *the_c64) : TheC64(the_c64) { int i; bitmap = new uint8[DISPLAY_X * DISPLAY_Y]; screen = new ROScreen(); ModeChange(); for (i=0; i<8; i++) {lastkeys[i] = 0;} // First joystick: mapped to port 2 if numLOCK is on, else port 2 JoystickKeys[0].up = KeyJoy1_Up; JoystickKeys[0].down = KeyJoy1_Down; JoystickKeys[0].left = KeyJoy1_Left; JoystickKeys[0].right = KeyJoy1_Right; JoystickKeys[0].fire = KeyJoy1_Fire; // Second joystick: only active if numLOCK is off! Mapped to port 2 then. JoystickKeys[1].up = KeyJoy2_Up; JoystickKeys[1].down = KeyJoy2_Down; JoystickKeys[1].left = KeyJoy2_Left; JoystickKeys[1].right = KeyJoy2_Right; JoystickKeys[1].fire = KeyJoy2_Fire; } C64Display::~C64Display(void) { delete bitmap; delete screen; } void C64Display::ModeChange(void) { register int i; screen->ReadMode(); // find best matching colours in current mode. switch (screen->ldbpp) { case 0: case 1: case 2: case 3: for (i=0; i<16; i++) // for 1,2,4 and 8bpp { mode_cols[i] = ModeColourNumber((palette_blue[i] << 24) + (palette_green[i] << 16) + (palette_red[i] << 8)); } break; case 4: for (i=0; i<16; i++) // for 16bpp { int r,g,b; r = (palette_red[i] + 4) & 0x1f8; if (r > 0xff) {r = 0xf8;} g = (palette_green[i] + 4) & 0x1f8; if (g > 0xff) {g = 0xf8;} b = (palette_blue[i] + 4) & 0x1f8; if (b > 0xff) {b = 0xf8;} mode_cols[i] = (r >> 3) | (g << 2) | (b << 7); } break; case 5: for (i=0; i<16; i++) // for 32bpp { mode_cols[i] = palette_red[i] | (palette_green[i] << 8) | (palette_blue[i] << 16); } break; } } uint8 *C64Display::BitmapBase(void) { return bitmap; } void C64Display::InitColors(uint8 *colors) { register int i; // write index mapping C64colours -> ROcolours if (screen->ldbpp <= 3) // at most 8bpp ==> use actual colour { for (i=0; i<256; i++) {colors[i] = mode_cols[i&15];} } else // else use index (takes time but can't be changed... { for (i=0; i<256; i++) {colors[i] = i&15;} } } int C64Display::BitmapXMod(void) { return DISPLAY_X; } // This routine reads the raw keyboard data from the host machine. Not entirely // conformant with Acorn's rules but the only way to detect multiple simultaneous // keypresses. void C64Display::PollKeyboard(uint8 *key_matrix, uint8 *rev_matrix, uint8 *joystick, uint8 *joystick2) { register int scan_from=IntKey_MinCode, code, row, col; int status; uint8 kjoy, kjoy2; uint32 newkeys[8]; UBYTE kjoy, kjoy2; // Clear keyboard for (code=0; code<8; code++) {key_matrix[code] = 0xff; rev_matrix[code] = 0xff; newkeys[code] = 0;} kjoy = kjoy2 = 0xff; status = ReadKeyboardStatus(); if ((status & 16) == 0) {key_matrix[1] &= 0x7f; rev_matrix[7] &= 0xfd;} // Caps lock while (scan_from <= IntKey_MaxCode) { if ((code = ScanKeys(scan_from)) != 0xff) { newkeys[code >> 5] |= (1 << (code & 0x1f)); // update keys pressed row = KeysAcornToCBM[code]; if ((status & 4) != 0) // numLOCK off? ==> check for 2nd keyboard joystick too { if (code == JoystickKeys[1].up) {kjoy2 &= 0xfe; row = 0xff;} else if (code == JoystickKeys[1].down) {kjoy2 &= 0xfd; row = 0xff;} else if (code == JoystickKeys[1].left) {kjoy2 &= 0xfb; row = 0xff;} else if (code == JoystickKeys[1].right) {kjoy2 &= 0xf7; row = 0xff;} else if (code == JoystickKeys[1].fire) {kjoy2 &= 0xef; row = 0xff;} } // check 1st keyboard joystick if (code == JoystickKeys[0].up) {kjoy &= 0xfe; row = 0xff;} else if (code == JoystickKeys[0].down) {kjoy &= 0xfd; row = 0xff;} else if (code == JoystickKeys[0].left) {kjoy &= 0xfb; row = 0xff;} else if (code == JoystickKeys[0].right) {kjoy &= 0xf7; row = 0xff;} else if (code == JoystickKeys[0].fire) {kjoy &= 0xef; row = 0xff;} // If key not mapped to joystick: try mapping to keyboard if (row != 0xff) { col = row & 7; row >>= 4; key_matrix[row] &= ~(1<Pause(); SAM(TheC64); TheC64->Resume(); } break; case IntKey_F7: TheC64->NMI(); break; case IntKey_F8: TheC64->Reset(); break; default: break; } // These shouldn't auto-repeat, therefore I check them seperately. if ((lastkeys[code >> 5] & (1 << (code & 0x1f))) == 0) { // Icons should be updated, not force-redrawed (--> single tasking) switch (code) { // decrease framerate case IntKey_PageUp: TheC64->TheWIMP->PrefsWindow-> WriteIconNumberU(Icon_Prefs_SkipFText,++ThePrefs.SkipFrames); break; // increase framerate case IntKey_PageDown: if (ThePrefs.SkipFrames > 0) { TheC64->TheWIMP->PrefsWindow-> WriteIconNumberU(Icon_Prefs_SkipFText,--ThePrefs.SkipFrames); } break; // toggle floppy emulation status case IntKey_NumSlash: { register int eor, i; Prefs *prefs = new Prefs(ThePrefs); // If Emulation active then ungrey icons now, else grey them prefs->Emul1541Proc = !prefs->Emul1541Proc; TheC64->TheWIMP->SetLEDIcons(prefs->Emul1541Proc); TheC64->NewPrefs(prefs); ThePrefs = *prefs; // Show change in prefs window too TheC64->TheWIMP->PrefsWindow-> SetIconState(Icon_Prefs_Emul1541,(prefs->Emul1541Proc)?IFlg_Slct:0,IFlg_Slct); delete prefs; } break; // toggle speed limiter case IntKey_NumStar: ThePrefs.LimitSpeed = !ThePrefs.LimitSpeed; TheC64->TheWIMP->SetSpeedLimiter(ThePrefs.LimitSpeed); break; // toggle sound emulation case IntKey_F5: { Window *pw = TheC64->TheWIMP->PrefsWindow; int i, j; Prefs *prefs = new Prefs(ThePrefs); if (prefs->SIDType == SIDTYPE_NONE) {prefs->SIDType = SIDTYPE_DIGITAL; i = 1;} else {prefs->SIDType = SIDTYPE_NONE; i = 0;} for (j=0; j<3; j++) { pw->SetIconState(SIDtoIcon[j], (j==i) ? IFlg_Slct : 0, IFlg_Slct); } TheC64->TheWIMP->SoundWindow-> SetIconState(Icon_Sound_Notes, (i==0) ? IFlg_Grey : 0, IFlg_Grey); TheC64->NewPrefs(prefs); ThePrefs = *prefs; delete prefs; } break; case IntKey_Copy: TheC64->Pause(); TheC64->TheWIMP->EmuPane->WriteIconTextU(Icon_Pane_Pause,PANE_TEXT_RESUME); break; default: break; } } } scan_from = code+1; } for (code=0; code<8; code++) {lastkeys[code] = newkeys[code];} *joystick = kjoy; *joystick2 = kjoy2; } bool C64Display::NumLock(void) { return(((ReadKeyboardStatus() & 4) == 0) ? true : false); } /* * Prefs may have changed */ void C64Display::NewPrefs(Prefs *prefs) { } void C64Display::Update(void) { int i, state; int *ic; // Do a redraw of the emulator window TheC64->TheWIMP->UpdateEmuWindow(); // Update the LEDs if necessary for (i=0; i<4; i++) { if ((state = led_state[i]) != old_led_state[i]) { ic = (int*)TheC64->TheWIMP->EmuPane->GetIcon(LEDtoIcon[i]); switch(state) { case LED_OFF: case LED_ERROR_OFF: sprintf((char*)ic[5],"led_off"); break; case LED_ON: sprintf((char*)ic[5],"led_on"); break; case LED_ERROR_ON: sprintf((char*)ic[5],"led_error"); break; } TheC64->TheWIMP->EmuPane->UpdateIcon(LEDtoIcon[i]); // update, not force-redraw! old_led_state[i] = state; } } } unsigned int *C64Display::GetColourTable(void) { return (mode_cols); } // Check whether unpause-key (copy) is pressed bool C64Display::CheckForUnpause(bool CheckLastState) { int scan_from = IntKey_MinCode, code; uint32 newkeys[8]; uint32 lastpause; for (code=0; code<8; code++) {newkeys[code] = 0;} while (scan_from <= IntKey_MaxCode) { if ((code = ScanKeys(scan_from)) != 0xff) { newkeys[code >> 5] |= (1 << (code & 0x1f)); } scan_from = code+1; } lastpause = lastkeys[IntKey_Copy >> 5] & (1 << (IntKey_Copy & 0x1f)); for (code=0; code<8; code++) {lastkeys[code] = newkeys[code];} // unpause-key pressed? if ((newkeys[IntKey_Copy >> 5] & (1 << (IntKey_Copy & 0x1f))) != 0) { if ((lastpause == 0) || !CheckLastState) { TheC64->Resume(); TheC64->TheWIMP->EmuPane->WriteIconTextU(Icon_Pane_Pause,PANE_TEXT_PAUSE); return(true); } } return(false); } // Requester dialogue box long ShowRequester(char *str, char *button1, char *button2) { _kernel_oserror myerr; myerr.errnum = 0x0; strcpy(myerr.errmess,str); Wimp_ReportError(&myerr,1,TASKNAME); // always provide an OK box return(1); }