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frodo-wii/Src/Display_Amiga.i
simon.kagstrom 2a6bece89d Imported orig code
2008-12-31 16:16:24 +00:00

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/*
* Display_Amiga.i - C64 graphics display, emulator window handling,
* Amiga specific stuff
*
* Frodo (C) 1994-1997,2002 Christian Bauer
*/
#include <exec/types.h>
#include <exec/memory.h>
#include <intuition/intuition.h>
#include <libraries/gadtools.h>
#include <libraries/asl.h>
#include <proto/exec.h>
#include <proto/graphics.h>
#include <proto/intuition.h>
#include <proto/dos.h>
#include <proto/gadtools.h>
#include <proto/diskfont.h>
#include <proto/asl.h>
#include "C64.h"
#include "SAM.h"
#include "Version.h"
/*
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
*/
/*
Tables for key translation
Bit 0..2: row/column in C64 keyboard matrix
Bit 3 : implicit shift
Bit 5 : joystick emulation (bit 0..4: mask)
*/
const int key_byte[128] = {
7, 7, 7, 1, 1, 2, 2, 3,
3, 4, 4, 5, 5, 6, -1,0x30,
7, 1, 1, 2, 2, 3, 3, 4,
4, 5, 5, 6, -1,0x26,0x22,0x2a,
1, 1, 2, 2, 3, 3, 4, 4,
5, 5, 6, 6, -1,0x24,0x30,0x28,
6, 1, 2, 2, 3, 3, 4, 4,
5, 5, 6, -1, -1,0x25,0x21,0x29,
7, 0, -1, 0, 0, 7, 6, -1,
-1, -1, -1, -1,8+0, 0, 0, 8+0,
0,8+0, 0,8+0, 0, 8+0, 0, 8+0,
-1, -1, 6, 6, -1, -1, -1, -1,
1, 6, 1, 7, 7, 7, 7, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1
};
const int key_bit[128] = {
1, 0, 3, 0, 3, 0, 3, 0,
3, 0, 3, 0, 3, 0, -1, -1,
6, 1, 6, 1, 6, 1, 6, 1,
6, 1, 6, 1, -1, -1, -1, -1,
2, 5, 2, 5, 2, 5, 2, 5,
2, 5, 2, 5, -1, -1, -1, -1,
6, 4, 7, 4, 7, 4, 7, 4,
7, 4, 7, -1, -1, -1, -1, -1,
4, 0, -1, 1, 1, 7, 3, -1,
-1, -1, -1, -1, 7, 7, 2, 2,
4, 4, 5, 5, 6, 6, 3, 3,
-1, -1, 6, 5, -1, -1, -1, -1,
7, 4, 7, 2, 5, 5, 5, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1,
-1, -1, -1, -1, -1, -1, -1, -1
};
/*
* Menu definitions
*/
const struct NewMenu new_menus[] = {
NM_TITLE, "Frodo", NULL, 0, 0, NULL,
NM_ITEM, "About Frodo...", NULL, 0, 0, NULL,
NM_ITEM, NM_BARLABEL, NULL, 0, 0, NULL,
NM_ITEM, "Preferences...", "P", 0, 0, NULL,
NM_ITEM, NM_BARLABEL, NULL, 0, 0, NULL,
NM_ITEM, "Reset C64", NULL, 0, 0, NULL,
NM_ITEM, "Insert next disk", "D", 0, 0, NULL,
NM_ITEM, "SAM...", "M", 0, 0, NULL,
NM_ITEM, NM_BARLABEL, NULL, 0, 0, NULL,
NM_ITEM, "Load snapshot...", "O", 0, 0, NULL,
NM_ITEM, "Save snapshot...", "S", 0, 0, NULL,
NM_ITEM, NM_BARLABEL, NULL, 0, 0, NULL,
NM_ITEM, "Quit Frodo", "Q", 0, 0, NULL,
NM_END, NULL, NULL, 0, 0, NULL
};
/*
* Font attributes
*/
const struct TextAttr led_font_attr = {
"Helvetica.font", 11, FS_NORMAL, 0
};
const struct TextAttr speedo_font_attr = {
"Courier.font", 11, FS_NORMAL, 0
};
/*
* Display constructor: Create window/screen
*/
C64Display::C64Display(C64 *the_c64) : TheC64(the_c64)
{
int i;
// LEDs off
for (i=0; i<4; i++)
led_state[i] = old_led_state[i] = LED_OFF;
// Allocate chunky buffer to draw into
chunky_buf = new UBYTE[DISPLAY_X * DISPLAY_Y];
// Open fonts
led_font = OpenDiskFont(&led_font_attr);
speedo_font = OpenDiskFont(&speedo_font_attr);
// Open window on default pubscreen
the_window = OpenWindowTags(NULL,
WA_Left, 0,
WA_Top, 0,
WA_InnerWidth, DISPLAY_X,
WA_InnerHeight, DISPLAY_Y + 16,
WA_Title, (ULONG)"Frodo",
WA_ScreenTitle, (ULONG)"Frodo C64 Emulator",
WA_IDCMP, IDCMP_CLOSEWINDOW | IDCMP_RAWKEY | IDCMP_MENUPICK | IDCMP_REFRESHWINDOW,
WA_DragBar, TRUE,
WA_DepthGadget, TRUE,
WA_CloseGadget, TRUE,
WA_SimpleRefresh, TRUE,
WA_Activate, TRUE,
WA_NewLookMenus, TRUE,
TAG_DONE);
the_screen = the_window->WScreen;
the_rp = the_window->RPort;
xo = the_window->BorderLeft;
yo = the_window->BorderTop;
// Create menus
the_visual_info = GetVisualInfo(the_screen, NULL);
the_menus = CreateMenus(new_menus, GTMN_FullMenu, TRUE, TAG_DONE);
LayoutMenus(the_menus, the_visual_info, GTMN_NewLookMenus, TRUE, TAG_DONE);
SetMenuStrip(the_window, the_menus);
// Obtain 16 pens for the C64 colors
for (i=0; i<16; i++)
pens[i] = ObtainBestPen(the_screen->ViewPort.ColorMap,
palette_red[i] * 0x01010101, palette_green[i] * 0x01010101, palette_blue[i] * 0x01010101);
// Allocate temporary RastPort for WritePixelArra8()
temp_bm = AllocBitMap(DISPLAY_X, 1, 8, 0, NULL);
InitRastPort(&temp_rp);
temp_rp.BitMap = temp_bm;
// Draw LED bar
draw_led_bar();
// Allocate file requesters
open_req = (struct FileRequester *)AllocAslRequestTags(ASL_FileRequest,
ASLFR_Window, (ULONG)the_window,
ASLFR_SleepWindow, TRUE,
ASLFR_TitleText, (ULONG)"Frodo: Load snapshot...",
ASLFR_RejectIcons, TRUE,
TAG_DONE);
save_req = (struct FileRequester *)AllocAslRequestTags(ASL_FileRequest,
ASLFR_Window, (ULONG)the_window,
ASLFR_SleepWindow, TRUE,
ASLFR_TitleText, (ULONG)"Frodo: Save snapshot...",
ASLFR_DoSaveMode, TRUE,
ASLFR_RejectIcons, TRUE,
TAG_DONE);
}
/*
* Display destructor
*/
C64Display::~C64Display()
{
// Free file requesters
if (open_req != NULL)
FreeAslRequest(open_req);
if (save_req != NULL)
FreeAslRequest(save_req);
// Free temporary RastPort
if (temp_bm != NULL)
FreeBitMap(temp_bm);
// Free pens
for (int i=0; i<16; i++)
ReleasePen(the_screen->ViewPort.ColorMap, pens[i]);
// Delete menus
if (the_menus != NULL) {
if (the_window != NULL)
ClearMenuStrip(the_window);
FreeMenus(the_menus);
}
// Delete VisualInfo
if (the_visual_info != NULL)
FreeVisualInfo(the_visual_info);
// Close window
if (the_window != NULL)
CloseWindow(the_window);
// Close fonts
CloseFont(speedo_font);
CloseFont(led_font);
// Free chunky buffer
delete chunky_buf;
}
/*
* Prefs may have changed
*/
void C64Display::NewPrefs(Prefs *prefs)
{
}
/*
* Redraw bitmap
*/
void C64Display::Update(void)
{
// Update C64 display
WritePixelArray8(the_rp, xo, yo, DISPLAY_X + xo - 1, DISPLAY_Y + yo - 1,
chunky_buf, &temp_rp);
// 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 LED bar at the bottom of the window
*/
void C64Display::draw_led_bar(void)
{
int i;
char str[16];
SetAPen(the_rp, pens[15]); // Light gray
SetBPen(the_rp, pens[15]); // Light gray
RectFill(the_rp, xo, yo+DISPLAY_Y, xo+DISPLAY_X-1, yo+DISPLAY_Y+15);
SetAPen(the_rp, pens[1]); // White
Move(the_rp, xo, yo+DISPLAY_Y); Draw(the_rp, xo+DISPLAY_X-1, yo+DISPLAY_Y);
for (i=0; i<5; i++) {
Move(the_rp, xo+DISPLAY_X*i/5, yo+DISPLAY_Y); Draw(the_rp, xo+DISPLAY_X*i/5, yo+DISPLAY_Y+14);
}
for (i=2; i<6; i++) {
Move(the_rp, xo+DISPLAY_X*i/5-23, yo+DISPLAY_Y+11); Draw(the_rp, xo+DISPLAY_X*i/5-9, yo+DISPLAY_Y+11);
Move(the_rp, xo+DISPLAY_X*i/5-9, yo+DISPLAY_Y+11); Draw(the_rp, xo+DISPLAY_X*i/5-9, yo+DISPLAY_Y+5);
}
SetAPen(the_rp, pens[12]); // Medium gray
Move(the_rp, xo, yo+DISPLAY_Y+15); Draw(the_rp, xo+DISPLAY_X-1, yo+DISPLAY_Y+15);
for (i=1; i<6; i++) {
Move(the_rp, xo+DISPLAY_X*i/5-1, yo+DISPLAY_Y+1); Draw(the_rp, xo+DISPLAY_X*i/5-1, yo+DISPLAY_Y+15);
}
for (i=2; i<6; i++) {
Move(the_rp, xo+DISPLAY_X*i/5-24, yo+DISPLAY_Y+11); Draw(the_rp, xo+DISPLAY_X*i/5-24, yo+DISPLAY_Y+4);
Move(the_rp, xo+DISPLAY_X*i/5-24, yo+DISPLAY_Y+4); Draw(the_rp, xo+DISPLAY_X*i/5-9, yo+DISPLAY_Y+4);
}
SetFont(the_rp, led_font);
for (i=0; i<4; i++) {
sprintf(str, "Drive %d", i+8);
SetAPen(the_rp, pens[0]); // Black
Move(the_rp, xo+DISPLAY_X*(i+1)/5+8, yo+DISPLAY_Y+11);
Text(the_rp, str, strlen(str));
draw_led(i, LED_OFF);
}
}
/*
* Draw one LED
*/
void C64Display::draw_led(int num, int state)
{
switch (state) {
case LED_OFF:
case LED_ERROR_OFF:
SetAPen(the_rp, pens[0]); // Black;
break;
case LED_ON:
SetAPen(the_rp, pens[5]); // Green
break;
case LED_ERROR_ON:
SetAPen(the_rp, pens[2]); // Red
break;
}
RectFill(the_rp, xo+DISPLAY_X*(num+2)/5-23, yo+DISPLAY_Y+5, xo+DISPLAY_X*(num+2)/5-10, yo+DISPLAY_Y+10);
}
/*
* Update speedometer
*/
void C64Display::Speedometer(int speed)
{
static int delay = 0;
if (delay >= 20) {
char str[16];
sprintf(str, "%d%%", speed);
SetAPen(the_rp, pens[15]); // Light gray
RectFill(the_rp, xo+1, yo+DISPLAY_Y+1, xo+DISPLAY_X/5-2, yo+DISPLAY_Y+14);
SetAPen(the_rp, pens[0]); // Black
SetFont(the_rp, speedo_font);
Move(the_rp, xo+24, yo+DISPLAY_Y+10);
Text(the_rp, str, strlen(str));
delay = 0;
} else
delay++;
}
/*
* Return pointer to bitmap data
*/
UBYTE *C64Display::BitmapBase(void)
{
return chunky_buf;
}
/*
* Return number of bytes per row
*/
int C64Display::BitmapXMod(void)
{
return DISPLAY_X;
}
/*
* Handle IDCMP messages
*/
void C64Display::PollKeyboard(UBYTE *key_matrix, UBYTE *rev_matrix, UBYTE *joystick)
{
struct IntuiMessage *msg;
// Get and analyze all pending window messages
while ((msg = (struct IntuiMessage *)GetMsg(the_window->UserPort)) != NULL) {
// Extract data and reply message
ULONG iclass = msg->Class;
USHORT code = msg->Code;
ReplyMsg((struct Message *)msg);
// Action depends on message class
switch (iclass) {
case IDCMP_CLOSEWINDOW: // Closing the window quits Frodo
TheC64->Quit();
break;
case IDCMP_RAWKEY:
switch (code) {
case 0x58: // F9: NMI (Restore)
TheC64->NMI();
break;
case 0x59: // F10: Reset
TheC64->Reset();
break;
case 0x5e: // '+' on keypad: Increase SkipFrames
ThePrefs.SkipFrames++;
break;
case 0x4a: // '-' on keypad: Decrease SkipFrames
if (ThePrefs.SkipFrames > 1)
ThePrefs.SkipFrames--;
break;
case 0x5d: // '*' on keypad: Toggle speed limiter
ThePrefs.LimitSpeed = !ThePrefs.LimitSpeed;
break;
case 0x5c:{ // '/' on keypad: Toggle processor-level 1541 emulation
Prefs *prefs = new Prefs(ThePrefs);
prefs->Emul1541Proc = !prefs->Emul1541Proc;
TheC64->NewPrefs(prefs);
ThePrefs = *prefs;
delete prefs;
break;
}
default:{
// Convert Amiga keycode to C64 row/column
int c64_byte = key_byte[code & 0x7f];
int c64_bit = key_bit[code & 0x7f];
if (c64_byte != -1) {
if (!(c64_byte & 0x20)) {
// Normal keys
bool shifted = c64_byte & 8;
c64_byte &= 7;
if (!(code & 0x80)) {
// Key pressed
if (shifted) {
key_matrix[6] &= 0xef;
rev_matrix[4] &= 0xbf;
}
key_matrix[c64_byte] &= ~(1 << c64_bit);
rev_matrix[c64_bit] &= ~(1 << c64_byte);
} else {
// Key released
if (shifted) {
key_matrix[6] |= 0x10;
rev_matrix[4] |= 0x40;
}
key_matrix[c64_byte] |= (1 << c64_bit);
rev_matrix[c64_bit] |= (1 << c64_byte);
}
} else {
// Joystick emulation
c64_byte &= 0x1f;
if (code & 0x80)
*joystick |= c64_byte;
else
*joystick &= ~c64_byte;
}
}
}
}
break;
case IDCMP_MENUPICK:{
if (code == MENUNULL)
break;
// Get item number
int item_number = ITEMNUM(code);
switch (item_number) {
case 0: { // About Frodo
TheC64->Pause();
char str[256];
sprintf(str, "%s by Christian Bauer\n<cbauer@iphcip1.physik.uni-mainz.de>\n© Copyright 1994-1997\nFreely distributable", VERSION_STRING);
ShowRequester(str, "OK");
TheC64->Resume();
break;
}
case 2: // Preferences
TheC64->Pause();
be_app->RunPrefsEditor();
TheC64->Resume();
break;
case 4: // Reset C64
TheC64->Reset();
break;
case 5: // Insert next disk
if (strlen(ThePrefs.DrivePath[0]) > 4) {
char str[256];
strcpy(str, ThePrefs.DrivePath[0]);
char *p = str + strlen(str) - 5;
// If path matches "*.?64", increment character before the '.'
if (p[1] == '.' && p[3] == '6' && p[4] == '4') {
p[0]++;
// If no such file exists, set character before the '.' to '1', 'a' or 'A'
FILE *file;
if ((file = fopen(str, "rb")) == NULL) {
if (isdigit(p[0]))
p[0] = '1';
else if (isupper(p[0]))
p[0] = 'A';
else
p[0] = 'a';
} else
fclose(file);
// Set new prefs
Prefs *prefs = new Prefs(ThePrefs);
strcpy(prefs->DrivePath[0], str);
TheC64->NewPrefs(prefs);
ThePrefs = *prefs;
delete prefs;
}
}
break;
case 6: // SAM
TheC64->Pause();
SAM(TheC64);
TheC64->Resume();
break;
case 8: // Load snapshot
if (open_req != NULL && AslRequest(open_req, NULL)) {
char path[256];
strncpy(path, open_req->fr_Drawer, 255);
AddPart(path, open_req->fr_File, 255);
TheC64->Pause();
TheC64->LoadSnapshot(path);
TheC64->Resume();
}
break;
case 9: // Save snapshot
if (save_req != NULL && AslRequest(save_req, NULL)) {
char path[256];
strncpy(path, save_req->fr_Drawer, 255);
AddPart(path, save_req->fr_File, 255);
TheC64->Pause();
TheC64->SaveSnapshot(path);
TheC64->Resume();
}
break;
case 11: // Quit Frodo
TheC64->Quit();
break;
}
break;
}
case IDCMP_REFRESHWINDOW:
BeginRefresh(the_window);
draw_led_bar();
EndRefresh(the_window, TRUE);
break;
}
}
}
/*
* Check if NumLock is down (for switching the joystick keyboard emulation)
*/
bool C64Display::NumLock(void)
{
return FALSE;
}
/*
* Allocate C64 colors
*/
void C64Display::InitColors(UBYTE *colors)
{
// Spread pens into colors array
for (int i=0; i<256; i++)
colors[i] = pens[i & 0x0f];
}
/*
* Show a requester
*/
long ShowRequester(char *str, char *button1, char *button2)
{
struct EasyStruct es;
char gads[256];
strcpy(gads, button1);
if (button2) {
strcat(gads, "|");
strcat(gads, button2);
}
es.es_StructSize = sizeof(struct EasyStruct);
es.es_Flags = 0;
es.es_Title = "Frodo";
es.es_TextFormat = str;
es.es_GadgetFormat = gads;
return EasyRequestArgs(NULL, &es, NULL, NULL) % 1;
}
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