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1.1 root 1: /* Generator is (c) James Ponder, 1997-2001 http://www.squish.net/generator/ */
2:
3: /* user interface for svgalib (15/16 bit) */
4:
1.1.1.2 ! root 5: /* this part of generator is 'slaved' from the ui-console.c file - only
! 6: platform specific code is contained here */
! 7:
1.1 root 8: #include <stdio.h>
9: #include <unistd.h>
10:
11: #include "generator.h"
12: #include <vga.h>
13: #include <vgakeyboard.h>
1.1.1.2 ! root 14: #include <vgajoystick.h>
1.1 root 15:
16: #include "uip.h"
17: #include "ui.h"
18: #include "ui-console.h"
19: #include "vdp.h"
1.1.1.2 ! root 20: #include "cpu68k.h"
1.1 root 21: #include "mem68k.h"
22:
23: #define BANKSIZE 640*480*2
24:
25: /*** forward reference declarations ***/
26:
1.1.1.2 ! root 27: static int uip_getshifts(t_uipinfo * uipinfo);
1.1 root 28:
29: /*** static variables ***/
30:
1.1.1.2 ! root 31: static uint8 uip_vga = 0; /* flag for whether in VGA mode */
! 32: static uint8 uip_key[256]; /* keyboard state */
! 33: static uint8 uip_displaybanknum = 0; /* view this one, write to other one */
! 34: static t_uipinfo *uip_uipinfo = NULL; /* uipinfo */
! 35: static int uip_forceredshift = -1; /* if set, forces red shift pos */
! 36: static int uip_forcegreenshift = -1; /* if set, forces green shift pos */
! 37: static int uip_forceblueshift = -1; /* if set, forces blue shift pos */
1.1 root 38:
39: /*** Code ***/
40:
1.1.1.2 ! root 41: static void uip_keyboardhandler(int scancode, int press)
! 42: {
1.1 root 43: if (scancode >= 256)
44: return;
45: if (uip_key[scancode] == press)
46: return;
47: uip_key[scancode] = press;
48: if (press) {
49: if (scancode == SCANCODE_F1) {
1.1.1.2 ! root 50: ui_fkeys |= 1 << 1;
1.1 root 51: } else if (scancode == SCANCODE_F2) {
1.1.1.2 ! root 52: ui_fkeys |= 1 << 2;
1.1 root 53: } else if (scancode == SCANCODE_F3) {
1.1.1.2 ! root 54: ui_fkeys |= 1 << 3;
1.1 root 55: } else if (scancode == SCANCODE_F4) {
1.1.1.2 ! root 56: ui_fkeys |= 1 << 4;
1.1 root 57: } else if (scancode == SCANCODE_F5) {
1.1.1.2 ! root 58: ui_fkeys |= 1 << 5;
1.1 root 59: } else if (scancode == SCANCODE_F6) {
1.1.1.2 ! root 60: ui_fkeys |= 1 << 6;
1.1 root 61: } else if (scancode == SCANCODE_F7) {
1.1.1.2 ! root 62: ui_fkeys |= 1 << 7;
1.1 root 63: } else if (scancode == SCANCODE_F8) {
1.1.1.2 ! root 64: ui_fkeys |= 1 << 8;
1.1 root 65: } else if (scancode == SCANCODE_F9) {
1.1.1.2 ! root 66: ui_fkeys |= 1 << 9;
1.1 root 67: } else if (scancode == SCANCODE_F10) {
1.1.1.2 ! root 68: ui_fkeys |= 1 << 10;
1.1 root 69: } else if (scancode == SCANCODE_F11) {
1.1.1.2 ! root 70: ui_fkeys |= 1 << 11;
1.1 root 71: } else if (scancode == SCANCODE_F12) {
1.1.1.2 ! root 72: ui_fkeys |= 1 << 12;
1.1 root 73: }
74: }
75: }
76:
1.1.1.2 ! root 77: int uip_init(t_uipinfo * uipinfo)
1.1 root 78: {
79: uip_uipinfo = uipinfo;
1.1.1.2 ! root 80: LOG_REQUEST(("Initialising svgalib..."));
1.1 root 81: sleep(1);
82: if (vga_init()) {
83: LOG_CRITICAL(("Failed to initialise SVGALib"));
84: return 1;
85: }
86: return 0;
87: }
88:
1.1.1.2 ! root 89: int uip_initjoysticks(void)
! 90: {
! 91: LOG_REQUEST(("Checking for svgalib joysticks..."));
! 92: if (joystick_init(0, JOY_CALIB_STDOUT) < 0) {
! 93: LOG_VERBOSE(("Joystick 0 not found"));
! 94: return 0;
! 95: }
! 96: LOG_NORMAL(("Joystick 0 initialised"));
! 97: if (joystick_init(1, JOY_CALIB_STDOUT) < 0) {
! 98: LOG_VERBOSE(("Joystick 1 not found"));
! 99: return 1;
! 100: }
! 101: LOG_NORMAL(("Joystick 1 initialised"));
! 102: return 2;
! 103: }
! 104:
1.1 root 105: int uip_vgamode(void)
106: {
107: vga_modeinfo *modeinfo;
108: int cardmemory;
109:
110: uip_vga = 1;
111: if (vga_setmode(G640x480x32K) == -1) {
112: LOG_CRITICAL(("640x480 @ 32K colours not supported by hardware"));
113: LOG_CRITICAL(("Trying 640x480 @ 64K colours..."));
114: if (vga_setmode(G640x480x64K) == -1) {
115: LOG_CRITICAL(("640x480 @ 64K colours not supported by hardware"));
116: uip_textmode();
117: LOG_CRITICAL(("Unable to change SVGA mode, mode not supported by "
1.1.1.2 ! root 118: "hardware?"));
1.1 root 119: LOG_CRITICAL(("Check /etc/vga/libvga.config to ensure your card "
1.1.1.2 ! root 120: "is not commented out"));
1.1 root 121: return 1;
122: }
123: }
1.1.1.2 ! root 124: if (vga_claimvideomemory(2 * BANKSIZE) == -1) {
1.1 root 125: uip_textmode();
126: LOG_CRITICAL(("Unable to allocated video memory - 2MB video card "
1.1.1.2 ! root 127: "required."));
1.1 root 128: return 1;
129: }
130: if ((modeinfo = vga_getmodeinfo(vga_getcurrentmode())) == NULL) {
131: uip_textmode();
132: LOG_CRITICAL(("Unable to get current mode information"));
133: return 1;
134: }
135: LOG_VERBOSE(("Resolution %dx%d bytesperpixel %d linewidth %d",
1.1.1.2 ! root 136: modeinfo->width, modeinfo->height, modeinfo->bytesperpixel,
! 137: modeinfo->linewidth));
1.1 root 138: if (modeinfo->width != 640 || modeinfo->height != 480 ||
1.1.1.2 ! root 139: modeinfo->bytesperpixel != 2 || modeinfo->linewidth * 480 > BANKSIZE ||
1.1 root 140: (modeinfo->startaddressrange & BANKSIZE) != BANKSIZE) {
141: uip_textmode();
142: LOG_CRITICAL(("Unexpected mode settings"));
143: return 1;
144: }
145: uip_uipinfo->linewidth = modeinfo->linewidth;
146: if (vga_setlinearaddressing() == -1) {
147: uip_textmode();
148: LOG_CRITICAL(("Linear addressing mode not supported by hardware"));
149: return 1;
150: }
151: if ((uip_uipinfo->screenmem0 = vga_getgraphmem()) == NULL) {
152: uip_textmode();
153: LOG_CRITICAL(("Failed to find start of screen memory"));
154: return 1;
155: }
1.1.1.2 ! root 156: uip_uipinfo->screenmem1 = uip_uipinfo->screenmem0 + BANKSIZE;
1.1 root 157: if (uip_forceredshift != -1 && uip_forcegreenshift != -1 &&
158: uip_forceblueshift != -1) {
159: uip_uipinfo->redshift = uip_forceredshift;
160: uip_uipinfo->greenshift = uip_forcegreenshift;
161: uip_uipinfo->blueshift = uip_forceblueshift;
162: } else {
163: switch (modeinfo->colors) {
164: case 32768:
165: LOG_VERBOSE(("Assuming colour bit positions 10,5,0 for 32k colour mode"));
166: uip_uipinfo->blueshift = 0;
167: uip_uipinfo->greenshift = 5;
168: uip_uipinfo->redshift = 10;
169: break;
170: case 65536:
171: LOG_VERBOSE(("Assuming colour bit positions 11,6,0 for 64k colour mode"));
172: uip_uipinfo->blueshift = 0;
173: uip_uipinfo->greenshift = 6;
174: uip_uipinfo->redshift = 11;
175: break;
176: default:
177: LOG_CRITICAL(("Unknown mode - %d colours?? use -c", modeinfo->colors));
178: return 1;
179: }
180: }
1.1.1.2 ! root 181: uip_displaybank(0); /* set current to 0th bank */
! 182: uip_clearscreen(); /* clear bank */
! 183: ui_setupscreen(); /* setup bank */
! 184: uip_displaybank(-1); /* toggle bank */
! 185: uip_clearscreen(); /* clear bank */
! 186: ui_setupscreen(); /* setup bank */
1.1 root 187: if (keyboard_init() == -1) {
188: uip_textmode();
189: LOG_CRITICAL(("Unable to initialise keyboard"));
190: return 1;
191: }
192: memset(uip_key, 0, sizeof(uip_key));
193: keyboard_seteventhandler(uip_keyboardhandler);
194: return 0;
195: }
196:
197: int uip_setcolourbits(int red, int green, int blue)
198: {
199: uip_forceredshift = red;
200: uip_forcegreenshift = green;
201: uip_forceblueshift = blue;
202: return 0;
203: }
204:
1.1.1.2 ! root 205: void uip_displaybank(int bank)
! 206: {
1.1 root 207: if (bank == -1)
208: bank = uip_displaybanknum ^ 1;
209: vga_setdisplaystart(bank ? BANKSIZE : 0);
210: uip_uipinfo->screenmem_w = bank ? uip_uipinfo->screenmem0 :
211: uip_uipinfo->screenmem1;
212: uip_displaybanknum = bank;
213: }
214:
1.1.1.2 ! root 215: void uip_clearscreen(void)
! 216: {
1.1 root 217: memset(uip_uipinfo->screenmem_w, 0, BANKSIZE);
218: }
219:
1.1.1.2 ! root 220: void uip_clearmiddle(void)
! 221: {
1.1 root 222: int i;
223:
224: for (i = 0; i < 240; i++) {
1.1.1.2 ! root 225: memset(uip_uipinfo->screenmem_w +
! 226: (uip_uipinfo->linewidth) * (120 + i) + 160 * 2, 0, 2 * 320);
1.1 root 227: }
228: }
229:
230: /* uip_singlebank sets write address to the current display screen */
231:
1.1.1.2 ! root 232: void uip_singlebank(void)
! 233: {
1.1 root 234: uip_uipinfo->screenmem_w = uip_displaybanknum ? uip_uipinfo->screenmem1 :
235: uip_uipinfo->screenmem0;
236: }
237:
238: /* uip_doublebank sets write address to hidden display screen */
239:
1.1.1.2 ! root 240: void uip_doublebank(void)
! 241: {
1.1 root 242: uip_uipinfo->screenmem_w = uip_displaybanknum ? uip_uipinfo->screenmem0 :
243: uip_uipinfo->screenmem1;
244: }
245:
246: void uip_textmode(void)
247: {
248: if (uip_vga) {
249: keyboard_setdefaulteventhandler();
250: vga_setmode(0);
251: }
252: uip_vga = 0;
253: }
254:
255: int uip_checkkeyboard(void)
256: {
1.1.1.2 ! root 257: int x, y;
! 258: int pad;
! 259: int joystick;
! 260:
! 261: joystick_update();
1.1 root 262: keyboard_update();
1.1.1.2 ! root 263: for (pad = 0; pad < 2; pad++) {
! 264: if ((joystick = ui_bindings[pad].joystick) >= 0) {
! 265: x = joystick_getaxis(joystick, 0);
! 266: y = joystick_getaxis(joystick, 1);
! 267: mem68k_cont[pad].a = joystick_getbutton(joystick, 0);
! 268: mem68k_cont[pad].b = joystick_getbutton(joystick, 1);
! 269: mem68k_cont[pad].c = joystick_getbutton(joystick, 2);
! 270: mem68k_cont[pad].start = joystick_getbutton(joystick, 3);
! 271: mem68k_cont[pad].left = x < -64 ? 1 : 0;
! 272: mem68k_cont[pad].right = x > 64 ? 1 : 0;
! 273: mem68k_cont[pad].up = y < -64 ? 1 : 0;
! 274: mem68k_cont[pad].down = y > 64 ? 1 : 0;
! 275: } else {
! 276: switch (ui_bindings[pad].keyboard) {
! 277: case 0: /* main keys */
! 278: mem68k_cont[pad].a = uip_key[SCANCODE_A] ? 1 : 0;
! 279: mem68k_cont[pad].b = (uip_key[SCANCODE_B] ||
! 280: uip_key[SCANCODE_S]) ? 1 : 0;
! 281: mem68k_cont[pad].c = (uip_key[SCANCODE_C] ||
! 282: uip_key[SCANCODE_D]) ? 1 : 0;
! 283: mem68k_cont[pad].left = uip_key[SCANCODE_CURSORBLOCKLEFT] ? 1 : 0;
! 284: mem68k_cont[pad].up = uip_key[SCANCODE_CURSORBLOCKUP] ? 1 : 0;
! 285: mem68k_cont[pad].right = uip_key[SCANCODE_CURSORBLOCKRIGHT] ? 1 : 0;
! 286: mem68k_cont[pad].down = uip_key[SCANCODE_CURSORBLOCKDOWN] ? 1 : 0;
! 287: mem68k_cont[pad].start = uip_key[SCANCODE_ENTER] ? 1 : 0;
! 288: break;
! 289: case 1: /* left side of keyboard */
! 290: mem68k_cont[pad].a = uip_key[SCANCODE_Z] ? 1 : 0;
! 291: mem68k_cont[pad].b = uip_key[SCANCODE_X] ? 1 : 0;
! 292: mem68k_cont[pad].c = uip_key[SCANCODE_C] ? 1 : 0;
! 293: mem68k_cont[pad].left = uip_key[SCANCODE_D] ? 1 : 0;
! 294: mem68k_cont[pad].up = uip_key[SCANCODE_R] ? 1 : 0;
! 295: mem68k_cont[pad].right = uip_key[SCANCODE_G] ? 1 : 0;
! 296: mem68k_cont[pad].down = uip_key[SCANCODE_F] ? 1 : 0;
! 297: mem68k_cont[pad].start = uip_key[SCANCODE_V] ? 1 : 0;
! 298: break;
! 299: case 2: /* right side of keyboard */
! 300: mem68k_cont[pad].a = uip_key[SCANCODE_COMMA] ? 1 : 0;
! 301: mem68k_cont[pad].b = uip_key[SCANCODE_PERIOD] ? 1 : 0;
! 302: mem68k_cont[pad].c = uip_key[SCANCODE_SLASH] ? 1 : 0;
! 303: mem68k_cont[pad].left = uip_key[SCANCODE_CURSORBLOCKLEFT] ? 1 : 0;
! 304: mem68k_cont[pad].up = uip_key[SCANCODE_CURSORBLOCKUP] ? 1 : 0;
! 305: mem68k_cont[pad].right = uip_key[SCANCODE_CURSORBLOCKRIGHT] ? 1 : 0;
! 306: mem68k_cont[pad].down = uip_key[SCANCODE_CURSORBLOCKDOWN] ? 1 : 0;
! 307: mem68k_cont[pad].start = uip_key[SCANCODE_ENTER] ? 1 : 0;
! 308: break;
! 309: }
! 310: }
! 311: }
1.1 root 312: return (uip_key[SCANCODE_ESCAPE] ? 1 : 0);
313: }
314:
315: void uip_vsync(void)
316: {
317: vga_waitretrace();
318: }
319:
320: unsigned int uip_whichbank(void)
321: {
322: /* returns 0 or 1 - the bank being VIEWED */
323: return uip_displaybanknum;
324: }
325:
326: uint8 uip_getchar(void)
327: {
328: char c;
329:
330: keyboard_setdefaulteventhandler();
331: keyboard_close();
332: c = getchar();
333: keyboard_init();
334: memset(uip_key, 0, sizeof(uip_key));
335: keyboard_seteventhandler(uip_keyboardhandler);
336: return c;
337: }
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