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frodo-wii/Src/Display_x.i

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Imported orig code
2008-12-31 17:16:24 +01:00
/*
* Display_x.i - C64 graphics display, emulator window handling,
* X specific stuff
*
* Frodo (C) 1994-1997,2002 Christian Bauer
* X11 stuff by Bernd Schmidt/Lutz Vieweg
*/
#include "SAM.h"
#include "C64.h"
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/keysym.h>
#include <X11/cursorfont.h>
#if defined(X_USE_SHM)
#include <sys/ipc.h>
#include <sys/shm.h>
#include <X11/extensions/XShm.h>
static XShmSegmentInfo shminfo;
#endif
static Display *display;
static int screen;
static Window rootwin, mywin;
static GC black_gc, led_gc;
static XColor black, fill_gray, shine_gray, shadow_gray, red, green;
static Colormap cmap;
static Font led_font;
static XImage *img;
static Visual *vis;
static XVisualInfo visualInfo;
static int bitdepth;
static char *bufmem;
static int hsize;
// For LED error blinking
static C64Display *c64_disp;
static struct sigaction pulse_sa;
static itimerval pulse_tv;
// Keyboard and joystick
static int keystate[256];
static int joystate = 0xFF;
static bool num_locked = false;
static const long int eventmask = (KeyPressMask|KeyReleaseMask|FocusChangeMask|ExposureMask);
/*
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 ; * <EFBFBD>
7 R/S Q C= SPC 2 CTL <- 1
*/
#define MATRIX(a,b) (((a) << 3) | (b))
#define KEY_F9 512
#define KEY_F10 513
#define KEY_F11 514
#define KEY_F12 515
#ifdef SUN
#define KEY_FIRE 58
#define KEY_JU 135
#define KEY_JD 7
#define KEY_JL 130
#define KEY_JR 2
#else
#define KEY_FIRE 516
#define KEY_JU 517
#define KEY_JD 518
#define KEY_JL 519
#define KEY_JR 520
#endif
#define KEY_JUL 521
#define KEY_JUR 522
#define KEY_JDL 523
#define KEY_JDR 524
#define KEY_KP_PLUS 525
#define KEY_KP_MINUS 526
#define KEY_KP_MULT 527
#define KEY_NUM_LOCK 528
/*
* Decode KeySyms. This function knows about all keys that
* are common between different keyboard languages.
*/
static int kc_decode(KeySym ks)
{
switch (ks) {
case XK_A: case XK_a: return MATRIX(1,2);
case XK_B: case XK_b: return MATRIX(3,4);
case XK_C: case XK_c: return MATRIX(2,4);
case XK_D: case XK_d: return MATRIX(2,2);
case XK_E: case XK_e: return MATRIX(1,6);
case XK_F: case XK_f: return MATRIX(2,5);
case XK_G: case XK_g: return MATRIX(3,2);
case XK_H: case XK_h: return MATRIX(3,5);
case XK_I: case XK_i: return MATRIX(4,1);
case XK_J: case XK_j: return MATRIX(4,2);
case XK_K: case XK_k: return MATRIX(4,5);
case XK_L: case XK_l: return MATRIX(5,2);
case XK_M: case XK_m: return MATRIX(4,4);
case XK_N: case XK_n: return MATRIX(4,7);
case XK_O: case XK_o: return MATRIX(4,6);
case XK_P: case XK_p: return MATRIX(5,1);
case XK_Q: case XK_q: return MATRIX(7,6);
case XK_R: case XK_r: return MATRIX(2,1);
case XK_S: case XK_s: return MATRIX(1,5);
case XK_T: case XK_t: return MATRIX(2,6);
case XK_U: case XK_u: return MATRIX(3,6);
case XK_V: case XK_v: return MATRIX(3,7);
case XK_W: case XK_w: return MATRIX(1,1);
case XK_X: case XK_x: return MATRIX(2,7);
case XK_Y: case XK_y: return MATRIX(3,1);
case XK_Z: case XK_z: return MATRIX(1,4);
case XK_0: return MATRIX(4,3);
case XK_1: return MATRIX(7,0);
case XK_2: return MATRIX(7,3);
case XK_3: return MATRIX(1,0);
case XK_4: return MATRIX(1,3);
case XK_5: return MATRIX(2,0);
case XK_6: return MATRIX(2,3);
case XK_7: return MATRIX(3,0);
case XK_8: return MATRIX(3,3);
case XK_9: return MATRIX(4,0);
case XK_space: return MATRIX(7,4);
case XK_grave: return MATRIX(7,1);
case XK_backslash: return MATRIX(6,6);
case XK_comma: return MATRIX(5,7);
case XK_period: return MATRIX(5,4);
case XK_Escape: return MATRIX(7,7);
case XK_Return: return MATRIX(0,1);
case XK_BackSpace: case XK_Delete: return MATRIX(0,0);
case XK_Insert: return MATRIX(6,3);
case XK_Home: case XK_Help: return MATRIX(6,3);
case XK_End: return MATRIX(6,0);
#ifdef __hpux
case XK_Prior: return MATRIX(6,0);
case XK_Next: return MATRIX(6,5);
#else
case XK_Page_Up: return MATRIX(6,0);
case XK_Page_Down: return MATRIX(6,5);
#endif
case XK_Control_L: return MATRIX(7,2);
case XK_Control_R: return MATRIX(7,5);
case XK_Shift_L: return MATRIX(1,7);
case XK_Shift_R: return MATRIX(6,4);
case XK_Alt_L: return MATRIX(7,5);
case XK_Alt_R: return MATRIX(7,5);
case XK_Up: return MATRIX(0,7)| 0x80;
case XK_Down: return MATRIX(0,7);
case XK_Left: return MATRIX(0,2) | 0x80;
case XK_Right: return MATRIX(0,2);
case XK_F1: return MATRIX(0,4);
case XK_F2: return MATRIX(0,4) | 0x80;
case XK_F3: return MATRIX(0,5);
case XK_F4: return MATRIX(0,5) | 0x80;
case XK_F5: return MATRIX(0,6);
case XK_F6: return MATRIX(0,6) | 0x80;
case XK_F7: return MATRIX(0,3);
case XK_F8: return MATRIX(0,3) | 0x80;
case XK_F9: return KEY_F9;
case XK_F10: return KEY_F10;
case XK_F11: return KEY_F11;
case XK_F12: return KEY_F12;
/* You never know which Keysyms might be missing on some workstation
* This #ifdef should be enough. */
#if defined(XK_KP_Prior) && defined(XK_KP_Left) && defined(XK_KP_Insert) && defined (XK_KP_End)
case XK_KP_0: case XK_KP_Insert: return KEY_FIRE;
case XK_KP_1: case XK_KP_End: return KEY_JDL;
case XK_KP_2: case XK_KP_Down: return KEY_JD;
case XK_KP_3: case XK_KP_Next: return KEY_JDR;
case XK_KP_4: case XK_KP_Left: return KEY_JL;
case XK_KP_5: case XK_KP_Begin: return KEY_FIRE;
case XK_KP_6: case XK_KP_Right: return KEY_JR;
case XK_KP_7: case XK_KP_Home: return KEY_JUL;
case XK_KP_8: case XK_KP_Up: return KEY_JU;
case XK_KP_9: case XK_KP_Prior: return KEY_JUR;
#else
case XK_KP_0: return KEY_FIRE;
case XK_KP_1: return KEY_JDL;
case XK_KP_2: return KEY_JD;
case XK_KP_3: return KEY_JDR;
case XK_KP_4: return KEY_JL;
case XK_KP_5: return KEY_FIRE;
case XK_KP_6: return KEY_JR;
case XK_KP_7: return KEY_JUL;
case XK_KP_8: return KEY_JU;
case XK_KP_9: return KEY_JUR;
#endif
case XK_KP_Add: return KEY_KP_PLUS;
case XK_KP_Subtract: return KEY_KP_MINUS;
case XK_KP_Multiply: return KEY_KP_MULT;
case XK_KP_Divide: return MATRIX(6,7);
case XK_KP_Enter: return MATRIX(0,1);
#ifdef SUN
case XK_Num_Lock: return KEY_NUM_LOCK;
#endif
}
return -1;
}
static int decode_us(KeySym ks)
{
switch(ks) { /* US specific */
case XK_minus: return MATRIX(5,0);
case XK_equal: return MATRIX(5,3);
case XK_bracketleft: return MATRIX(5,6);
case XK_bracketright: return MATRIX(6,1);
case XK_semicolon: return MATRIX(5,5);
case XK_apostrophe: return MATRIX(6,2);
case XK_slash: return MATRIX(6,7);
}
return -1;
}
static int decode_de(KeySym ks)
{
switch(ks) { /* DE specific */
case XK_ssharp: return MATRIX(5,0);
case XK_apostrophe: return MATRIX(5,3);
case XK_Udiaeresis: case XK_udiaeresis: return MATRIX(5,6);
case XK_plus: return MATRIX(6,1);
case XK_Odiaeresis: case XK_odiaeresis: return MATRIX(5,5);
case XK_Adiaeresis: case XK_adiaeresis: return MATRIX(6,2);
case XK_numbersign: return MATRIX(6,5);
case XK_less: case XK_greater: return MATRIX(6,0);
case XK_minus: return MATRIX(6,7);
}
return -1;
}
static int keycode2c64(XKeyEvent *event)
{
KeySym ks;
int as;
int index = 0;
do {
ks = XLookupKeysym(event, index);
as = kc_decode(ks);
if (as == -1)
as = KBD_LANG == 0 ? decode_us(ks) : decode_de(ks);
if (as != -1)
return as;
index++;
} while (ks != NoSymbol);
return -1;
}
/*
* Display constructor: Draw Speedometer/LEDs in window
*/
C64Display::C64Display(C64 *the_c64) : TheC64(the_c64)
{
int i;
char str[16];
quit_requested = false;
// LEDs off
for (i=0; i<4; i++)
led_state[i] = old_led_state[i] = LED_OFF;
// Draw speedometer/LEDs
led_gc = XCreateGC(display, mywin, 0, 0);
XSetFont(display, led_gc, led_font);
XSetForeground(display, led_gc, fill_gray.pixel);
XFillRectangle(display, mywin, led_gc, 0, DISPLAY_Y, DISPLAY_X-1, 16);
XSetForeground(display, led_gc, shine_gray.pixel);
XDrawLine(display, mywin, led_gc, 0, DISPLAY_Y, DISPLAY_X-1, DISPLAY_Y);
for (i=0; i<5; i++)
XDrawLine(display, mywin, led_gc, DISPLAY_X*i/5, DISPLAY_Y, DISPLAY_X*i/5, DISPLAY_Y+14);
for (i=2; i<6; i++) {
XDrawLine(display, mywin, led_gc, DISPLAY_X*i/5-23, DISPLAY_Y+11, DISPLAY_X*i/5-9, DISPLAY_Y+11);
XDrawLine(display, mywin, led_gc, DISPLAY_X*i/5-9, DISPLAY_Y+11, DISPLAY_X*i/5-9, DISPLAY_Y+5);
}
XSetForeground(display, led_gc, shadow_gray.pixel);
XDrawLine(display, mywin, led_gc, 0, DISPLAY_Y+15, DISPLAY_X-1, DISPLAY_Y+15);
for (i=1; i<6; i++)
XDrawLine(display, mywin, led_gc, DISPLAY_X*i/5-1, DISPLAY_Y+1, DISPLAY_X*i/5-1, DISPLAY_Y+15);
for (i=2; i<6; i++) {
XDrawLine(display, mywin, led_gc, DISPLAY_X*i/5-24, DISPLAY_Y+11, DISPLAY_X*i/5-24, DISPLAY_Y+4);
XDrawLine(display, mywin, led_gc, DISPLAY_X*i/5-24, DISPLAY_Y+4, DISPLAY_X*i/5-9, DISPLAY_Y+4);
}
for (i=0; i<4; i++) {
sprintf(str, "Drive %d", i+8);
XSetForeground(display, led_gc, black.pixel);
XDrawString(display, mywin, led_gc, DISPLAY_X*(i+1)/5+8, DISPLAY_Y+12, str, strlen(str));
draw_led(i, LED_OFF);
}
// Start timer for LED error blinking
c64_disp = this;
pulse_sa.sa_handler = (void (*)(int))pulse_handler;
pulse_sa.sa_flags = 0;
sigemptyset(&pulse_sa.sa_mask);
sigaction(SIGALRM, &pulse_sa, NULL);
pulse_tv.it_interval.tv_sec = 0;
pulse_tv.it_interval.tv_usec = 400000;
pulse_tv.it_value.tv_sec = 0;
pulse_tv.it_value.tv_usec = 400000;
setitimer(ITIMER_REAL, &pulse_tv, NULL);
}
/*
* Display destructor
*/
C64Display::~C64Display()
{
XAutoRepeatOn(display);
XSync(display, 0);
}
/*
* Prefs may have changed
*/
void C64Display::NewPrefs(Prefs *prefs)
{
}
/*
* Connect to X server and open window
*/
int init_graphics(void)
{
int i;
char *display_name = 0;
XSetWindowAttributes wattr;
XSizeHints *hints;
XColor exact_color;
int pixbytes;
display = XOpenDisplay(display_name);
if (display == 0) {
fprintf(stderr, "Can't connect to X server %s\n", XDisplayName(display_name));
return 0;
}
screen = XDefaultScreen(display);
rootwin = XRootWindow(display, screen);
if (XMatchVisualInfo(display, screen, 8, PseudoColor, &visualInfo)) {
/* for our HP boxes */
} else if (XMatchVisualInfo(display, screen, 8, GrayScale, &visualInfo)) {
} else {
fprintf(stderr, "Can't obtain appropriate X visual\n");
return 0;
}
vis = visualInfo.visual;
bitdepth = visualInfo.depth;
pixbytes = (bitdepth == 24 || bitdepth == 32 ? 4 : bitdepth == 12 || bitdepth == 16 ? 2 : 1);
fprintf(stderr, "Using %d bit visual\n", bitdepth);
hsize = (DISPLAY_X + 3) & ~3;
#if defined(X_USE_SHM)
img = XShmCreateImage(display, vis, bitdepth, ZPixmap, 0, &shminfo,
hsize, DISPLAY_Y);
shminfo.shmid = shmget(IPC_PRIVATE, DISPLAY_Y * img->bytes_per_line,
IPC_CREAT | 0777);
shminfo.shmaddr = img->data = bufmem = (char *)shmat(shminfo.shmid, 0, 0);
shminfo.readOnly = False;
XShmAttach(display, &shminfo);
XSync(display,0);
/* now deleting means making it temporary */
shmctl(shminfo.shmid, IPC_RMID, 0);
#else
bufmem = (char *)malloc(pixbytes * hsize * DISPLAY_Y);
img = XCreateImage(display, vis, bitdepth, ZPixmap, 0, bufmem, hsize, DISPLAY_Y, 32, 0);
#endif
cmap = XCreateColormap(display, rootwin, vis, AllocNone);
XParseColor(display, cmap, "#000000", &black);
if (!XAllocColor(display, cmap, &black))
fprintf(stderr, "Whoops??\n");
wattr.event_mask = eventmask;
wattr.background_pixel = black.pixel;
wattr.backing_store = Always;
wattr.backing_planes = bitdepth;
wattr.border_pixmap = None;
wattr.border_pixel = black.pixel;
wattr.colormap = cmap;
mywin = XCreateWindow(display, rootwin, 0, 0, DISPLAY_X, DISPLAY_Y + 16, 0,
bitdepth, InputOutput, vis,
CWEventMask|CWBackPixel|CWBorderPixel|CWBackingStore
|CWBackingPlanes|CWColormap,
&wattr);
XMapWindow(display, mywin);
XStoreName(display, mywin, "Frodo");
if ((hints = XAllocSizeHints()) != NULL) {
hints->min_width = DISPLAY_X;
hints->max_width = DISPLAY_X;
hints->min_height = DISPLAY_Y + 16;
hints->max_height = DISPLAY_Y + 16;
hints->flags = PMinSize | PMaxSize;
XSetWMNormalHints(display, mywin, hints);
XFree((char *)hints);
}
black_gc = XCreateGC(display,mywin, 0, 0);
XSetForeground(display, black_gc, black.pixel);
// Allocate colors for speedometer/LEDs
if (!XAllocNamedColor(display, cmap, "rgb:d0/d0/d0", &fill_gray, &exact_color))
return 0;
if (!XAllocNamedColor(display, cmap, "rgb:e8/e8/e8", &shine_gray, &exact_color))
return 0;
if (!XAllocNamedColor(display, cmap, "rgb:98/98/98", &shadow_gray, &exact_color))
return 0;
if (!XAllocNamedColor(display, cmap, "rgb:f0/00/00", &red, &exact_color))
return 0;
if (!XAllocNamedColor(display, cmap, "rgb:00/f0/00", &green, &exact_color))
return 0;
// Load font for speedometer/LED labels
led_font = XLoadFont(display, "-*-helvetica-medium-r-*-*-10-*");
for(i=0; i<256; i++)
keystate[i] = 0;
return 1;
}
/*
* Redraw bitmap
*/
void C64Display::Update(void)
{
// Update C64 display
XSync(display, 0);
#if defined(X_USE_SHM)
XShmPutImage(display, mywin, black_gc, img, 0, 0, 0, 0, DISPLAY_X, DISPLAY_Y, 0);
#else
XPutImage(display, mywin, black_gc, img, 0, 0, 0, 0, DISPLAY_X, DISPLAY_Y);
#endif
// Update drive LEDs
for (int i=0; i<4; i++)
if (led_state[i] != old_led_state[i]) {
draw_led(i, led_state[i]);
old_led_state[i] = led_state[i];
}
}
/*
* Draw one drive LED
*/
void C64Display::draw_led(int num, int state)
{
switch (state) {
case LED_OFF:
case LED_ERROR_OFF:
XSetForeground(display, led_gc, black.pixel);
break;
case LED_ON:
XSetForeground(display, led_gc, green.pixel);
break;
case LED_ERROR_ON:
XSetForeground(display, led_gc, red.pixel);
break;
}
XFillRectangle(display, mywin, led_gc, DISPLAY_X*(num+2)/5-23, DISPLAY_Y+5, 14, 6);
}
/*
* LED error blink
*/
void C64Display::pulse_handler(...)
{
for (int i=0; i<4; i++)
switch (c64_disp->led_state[i]) {
case LED_ERROR_ON:
c64_disp->led_state[i] = LED_ERROR_OFF;
break;
case LED_ERROR_OFF:
c64_disp->led_state[i] = LED_ERROR_ON;
break;
}
}
/*
* Draw speedometer
*/
void C64Display::Speedometer(int speed)
{
static int delay = 0;
if (delay >= 20) {
char str[16];
sprintf(str, "%d%%", speed);
XSetForeground(display, led_gc, fill_gray.pixel);
XFillRectangle(display,mywin, led_gc, 1, DISPLAY_Y+1, DISPLAY_X/5-2, 14);
XSetForeground(display, led_gc, black.pixel);
XDrawString(display, mywin, led_gc, 24, DISPLAY_Y+12, str, strlen(str));
delay = 0;
} else
delay++;
}
/*
* Return pointer to bitmap data
*/
uint8 *C64Display::BitmapBase(void)
{
return (uint8 *)bufmem;
}
/*
* Return number of bytes per row
*/
int C64Display::BitmapXMod(void)
{
return hsize;
}
/*
* Poll the keyboard
*/
void C64Display::PollKeyboard(uint8 *key_matrix, uint8 *rev_matrix, uint8 *joystick)
{
static bool auto_rep = true;
for(;;) {
XEvent event;
if (!XCheckMaskEvent(display, eventmask, &event))
break;
switch(event.type) {
case KeyPress: {
int kc = keycode2c64((XKeyEvent *)&event);
if (kc == -1)
break;
switch (kc) {
case KEY_F9: // F9: Invoke SAM
SAM(TheC64);
break;
case KEY_F10: // F10: Quit
quit_requested = true;
break;
case KEY_F11: // F11: NMI (Restore)
TheC64->NMI();
break;
case KEY_F12: // F12: Reset
TheC64->Reset();
break;
case KEY_NUM_LOCK: // NumLock: Toggle joyport
num_locked = true;
break;
case KEY_FIRE:
joystate &= ~0x10;
break;
case KEY_JD:
joystate &= ~0x02;
break;
case KEY_JU:
joystate &= ~0x01;
break;
case KEY_JL:
joystate &= ~0x04;
break;
case KEY_JR:
joystate &= ~0x08;
break;
case KEY_JUL:
joystate &= ~0x05;
break;
case KEY_JUR:
joystate &= ~0x09;
break;
case KEY_JDL:
joystate &= ~0x06;
break;
case KEY_JDR:
joystate &= ~0x0a;
break;
case KEY_KP_PLUS: // '+' on keypad: Increase SkipFrames
ThePrefs.SkipFrames++;
break;
case KEY_KP_MINUS: // '-' on keypad: Decrease SkipFrames
if (ThePrefs.SkipFrames > 1)
ThePrefs.SkipFrames--;
break;
case KEY_KP_MULT: // '*' on keypad: Toggle speed limiter
ThePrefs.LimitSpeed = !ThePrefs.LimitSpeed;
break;
default:
if (keystate[kc])
break;
keystate[kc] = 1;
int c64_byte, c64_bit, shifted;
c64_byte = kc >> 3;
c64_bit = kc & 7;
shifted = kc & 128;
c64_byte &= 7;
if (shifted) {
key_matrix[6] &= 0xef;
rev_matrix[4] &= 0xbf;
}
key_matrix[c64_byte] &= ~(1 << c64_bit);
rev_matrix[c64_bit] &= ~(1 << c64_byte);
break;
}
break;
}
case KeyRelease: {
int kc = keycode2c64((XKeyEvent *)&event);
if (kc == -1)
break;
switch (kc) {
case KEY_NUM_LOCK:
num_locked = false;
break;
case KEY_FIRE:
joystate |= 0x10;
break;
case KEY_JD:
joystate |= 0x02;
break;
case KEY_JU:
joystate |= 0x01;
break;
case KEY_JL:
joystate |= 0x04;
break;
case KEY_JR:
joystate |= 0x08;
break;
case KEY_JUL:
joystate |= 0x05;
break;
case KEY_JUR:
joystate |= 0x09;
break;
case KEY_JDL:
joystate |= 0x06;
break;
case KEY_JDR:
joystate |= 0x0a;
break;
default:
if (!keystate[kc])
break;
keystate[kc] = 0;
int c64_byte, c64_bit, shifted;
c64_byte = kc >> 3;
c64_bit = kc & 7;
shifted = kc & 128;
c64_byte &= 7;
if (shifted) {
key_matrix[6] |= 0x10;
rev_matrix[4] |= 0x40;
}
key_matrix[c64_byte] |= (1 << c64_bit);
rev_matrix[c64_bit] |= (1 << c64_byte);
break;
}
}
case FocusIn:
if (auto_rep) {
XAutoRepeatOff(display);
auto_rep = false;
}
break;
case FocusOut:
if (!auto_rep) {
XAutoRepeatOn(display);
auto_rep = true;
}
break;
}
}
*joystick = joystate;
}
/*
* Check if NumLock is down (for switching the joystick keyboard emulation)
*/
bool C64Display::NumLock(void)
{
return num_locked;
}
/*
* Allocate C64 colors
*/
void C64Display::InitColors(uint8 *colors)
{
int i;
XColor col;
char str[20];
for (i=0; i< 256; i++) {
sprintf(str, "rgb:%x/%x/%x", palette_red[i & 0x0f], palette_green[i & 0x0f], palette_blue[i & 0x0f]);
XParseColor(display, cmap, str, &col);
if (XAllocColor(display, cmap, &col))
colors[i] = col.pixel;
else
fprintf(stderr, "Couldn't get all colors\n");
}
}
/*
* Show a requester (error message)
*/
long int ShowRequester(char *a,char *b,char *)
{
printf("%s: %s\n", a, b);
return 1;
}
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