src/AmigaOS/video_amiga.cpp

/*
 *  video_amiga.cpp - Video/graphics emulation, AmigaOS specific stuff
 *
 *  Basilisk II (C) 1997-2001 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 <exec/types.h>
#include <intuition/intuition.h>
#include <graphics/rastport.h>
#include <graphics/gfx.h>
#include <cybergraphics/cybergraphics.h>
#include <dos/dostags.h>
#include <devices/timer.h>
#include <proto/exec.h>
#include <proto/dos.h>
#include <proto/intuition.h>
#include <proto/graphics.h>
#include <proto/Picasso96.h>
#include <proto/cybergraphics.h>

#include "sysdeps.h"
#include "cpu_emulation.h"
#include "main.h"
#include "adb.h"
#include "prefs.h"
#include "user_strings.h"
#include "video.h"

#define DEBUG 0
#include "debug.h"


// Display types
enum {
        DISPLAY_WINDOW,
        DISPLAY_PIP,
        DISPLAY_SCREEN_P96,
        DISPLAY_SCREEN_CGFX
};

// Global variables
static int32 frame_skip;
static int display_type = DISPLAY_WINDOW;               // See enum above
static struct Screen *the_screen = NULL;
static struct Window *the_win = NULL;
static struct BitMap *the_bitmap = NULL;
static UWORD *null_pointer = NULL;                              // Blank mouse pointer data
static UWORD *current_pointer = (UWORD *)-1;    // Currently visible mouse pointer data
static LONG black_pen = -1, white_pen = -1;
static struct Process *periodic_proc = NULL;    // Periodic process

extern struct Task *MainTask;                                   // Pointer to main task (from main_amiga.cpp)


// Amiga -> Mac raw keycode translation table
static const uint8 keycode2mac[0x80] = {
        0x0a, 0x12, 0x13, 0x14, 0x15, 0x17, 0x16, 0x1a, //   `   1   2   3   4   5   6   7
        0x1c, 0x19, 0x1d, 0x1b, 0x18, 0x2a, 0xff, 0x52, //   8   9   0   -   =   \ inv   0
        0x0c, 0x0d, 0x0e, 0x0f, 0x11, 0x10, 0x20, 0x22, //   Q   W   E   R   T   Y   U   I
        0x1f, 0x23, 0x21, 0x1e, 0xff, 0x53, 0x54, 0x55, //   O   P   [   ] inv   1   2   3
        0x00, 0x01, 0x02, 0x03, 0x05, 0x04, 0x26, 0x28, //   A   S   D   F   G   H   J   K
        0x25, 0x29, 0x27, 0x2a, 0xff, 0x56, 0x57, 0x58, //   L   ;   '   # inv   4   5   6
        0x32, 0x06, 0x07, 0x08, 0x09, 0x0b, 0x2d, 0x2e, //   <   Z   X   C   V   B   N   M
        0x2b, 0x2f, 0x2c, 0xff, 0x41, 0x59, 0x5b, 0x5c, //   ,   .   / inv   .   7   8   9
        0x31, 0x33, 0x30, 0x4c, 0x24, 0x35, 0x75, 0xff, // SPC BSP TAB ENT RET ESC DEL inv
        0xff, 0xff, 0x4e, 0xff, 0x3e, 0x3d, 0x3c, 0x3b, // inv inv   - inv CUP CDN CRT CLF
        0x7a, 0x78, 0x63, 0x76, 0x60, 0x61, 0x62, 0x64, //  F1  F2  F3  F4  F5  F6  F7  F8
        0x65, 0x6d, 0x47, 0x51, 0x4b, 0x43, 0x45, 0x72, //  F9 F10   (   )   /   *   + HLP
        0x38, 0x38, 0x39, 0x36, 0x3a, 0x3a, 0x37, 0x37, // SHL SHR CAP CTL ALL ALR AML AMR
        0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, // inv inv inv inv inv inv inv inv
        0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, // inv inv inv inv inv inv inv inv
        0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff  // inv inv inv inv inv inv inv inv
};


// Prototypes
static void periodic_func(void);


/*
 *  Initialization
 */

// Open window
static bool init_window(int width, int height)
{
        // Set absolute mouse mode
        ADBSetRelMouseMode(false);

        // Open window
        the_win = OpenWindowTags(NULL,
                WA_Left, 0, WA_Top, 0,
                WA_InnerWidth, width, WA_InnerHeight, height,
                WA_SimpleRefresh, TRUE,
                WA_NoCareRefresh, TRUE,
                WA_Activate, TRUE,
                WA_RMBTrap, TRUE,
                WA_ReportMouse, TRUE,
                WA_DragBar, TRUE,
                WA_DepthGadget, TRUE,
                WA_SizeGadget, FALSE,
                WA_Title, (ULONG)GetString(STR_WINDOW_TITLE),
                TAG_END
        );
        if (the_win == NULL) {
                ErrorAlert(GetString(STR_OPEN_WINDOW_ERR));
                return false;
        }

        // Create bitmap ("height + 2" for safety)
        the_bitmap = AllocBitMap(width, height + 2, 1, BMF_CLEAR, NULL);
        if (the_bitmap == NULL) {
                ErrorAlert(GetString(STR_NO_MEM_ERR));
                return false;
        }

        // Set VideoMonitor
        VideoMonitor.mac_frame_base = (uint32)the_bitmap->Planes[0];
        VideoMonitor.bytes_per_row = the_bitmap->BytesPerRow;
        VideoMonitor.x = width;
        VideoMonitor.y = height;
        VideoMonitor.mode = VMODE_1BIT;

        // Set FgPen and BgPen
        black_pen = ObtainBestPenA(the_win->WScreen->ViewPort.ColorMap, 0, 0, 0, NULL);
        white_pen = ObtainBestPenA(the_win->WScreen->ViewPort.ColorMap, 0xffffffff, 0xffffffff, 0xffffffff, NULL);
        SetAPen(the_win->RPort, black_pen);
        SetBPen(the_win->RPort, white_pen);
        SetDrMd(the_win->RPort, JAM2);
        return true;
}

// Open PIP (requires Picasso96)
static bool init_pip(int width, int height)
{
        // Set absolute mouse mode
        ADBSetRelMouseMode(false);

        // Open window
        ULONG error = 0;
        the_win = p96PIP_OpenTags(
                P96PIP_SourceFormat, RGBFB_R5G5B5,
                P96PIP_SourceWidth, width,
                P96PIP_SourceHeight, height,
                P96PIP_ErrorCode, (ULONG)&error,
                WA_Left, 0, WA_Top, 0,
                WA_InnerWidth, width, WA_InnerHeight, height,
                WA_SimpleRefresh, TRUE,
                WA_NoCareRefresh, TRUE,
                WA_Activate, TRUE,
                WA_RMBTrap, TRUE,
                WA_ReportMouse, TRUE,
                WA_DragBar, TRUE,
                WA_DepthGadget, TRUE,
                WA_SizeGadget, FALSE,
                WA_Title, (ULONG)GetString(STR_WINDOW_TITLE),
                WA_PubScreenName, (ULONG)"Workbench",
                TAG_END
        );
        if (the_win == NULL || error) {
                ErrorAlert(GetString(STR_OPEN_WINDOW_ERR));
                return false;
        }

        // Find bitmap
        p96PIP_GetTags(the_win, P96PIP_SourceBitMap, (ULONG)&the_bitmap, TAG_END);

        // Set VideoMonitor
        VideoMonitor.mac_frame_base = p96GetBitMapAttr(the_bitmap, P96BMA_MEMORY);
        VideoMonitor.bytes_per_row = p96GetBitMapAttr(the_bitmap, P96BMA_BYTESPERROW);
        VideoMonitor.x = width;
        VideoMonitor.y = height;
        VideoMonitor.mode = VMODE_16BIT;
        return true;
}

// Open Picasso96 screen
static bool init_screen_p96(ULONG mode_id)
{
        // Set relative mouse mode
        ADBSetRelMouseMode(true);

        // Check if the mode is one we can handle
        uint32 depth = p96GetModeIDAttr(mode_id, P96IDA_DEPTH);
        uint32 format = p96GetModeIDAttr(mode_id, P96IDA_RGBFORMAT);

        switch (depth) {
                case 8:
                        VideoMonitor.mode = VMODE_8BIT;
                        break;
                case 15:
                case 16:
                        if (format != RGBFB_R5G5B5) {
                                ErrorAlert(GetString(STR_WRONG_SCREEN_FORMAT_ERR));
                                return false;
                        }
                        VideoMonitor.mode = VMODE_16BIT;
                        break;
                case 24:
                case 32:
                        if (format != RGBFB_A8R8G8B8) {
                                ErrorAlert(GetString(STR_WRONG_SCREEN_FORMAT_ERR));
                                return false;
                        }
                        VideoMonitor.mode = VMODE_32BIT;
                        break;
                default:
                        ErrorAlert(GetString(STR_WRONG_SCREEN_DEPTH_ERR));
                        return false;
        }

        // Yes, get width and height
        uint32 width = p96GetModeIDAttr(mode_id, P96IDA_WIDTH);
        uint32 height = p96GetModeIDAttr(mode_id, P96IDA_HEIGHT);

        VideoMonitor.x = width;
        VideoMonitor.y = height;

        // Open screen
        the_screen = p96OpenScreenTags(
                P96SA_DisplayID, mode_id,
                P96SA_Title, (ULONG)GetString(STR_WINDOW_TITLE),
                P96SA_Quiet, TRUE,
                P96SA_NoMemory, TRUE,
                P96SA_NoSprite, TRUE,
                P96SA_Exclusive, TRUE,
                TAG_END
        );
        if (the_screen == NULL) {
                ErrorAlert(GetString(STR_OPEN_SCREEN_ERR));
                return false;
        }

        // Open window
        the_win = OpenWindowTags(NULL,
                WA_Left, 0, WA_Top, 0,
                WA_Width, width, WA_Height, height,
                WA_NoCareRefresh, TRUE,
                WA_Borderless, TRUE,
                WA_Activate, TRUE,
                WA_RMBTrap, TRUE,
                WA_ReportMouse, TRUE,
                WA_CustomScreen, (ULONG)the_screen,
                TAG_END
        );
        if (the_win == NULL) {
                ErrorAlert(GetString(STR_OPEN_WINDOW_ERR));
                return false;
        }

        // Set VideoMonitor
        ScreenToFront(the_screen);
        VideoMonitor.mac_frame_base = p96GetBitMapAttr(the_screen->RastPort.BitMap, P96BMA_MEMORY);
        VideoMonitor.bytes_per_row = p96GetBitMapAttr(the_screen->RastPort.BitMap, P96BMA_BYTESPERROW);
        return true;
}

// Open CyberGraphX screen
static bool init_screen_cgfx(ULONG mode_id)
{
        // Set relative mouse mode
        ADBSetRelMouseMode(true);

        // Check if the mode is one we can handle
        uint32 depth = GetCyberIDAttr(CYBRIDATTR_DEPTH, mode_id);
        uint32 format = GetCyberIDAttr(CYBRIDATTR_PIXFMT, mode_id);

        switch (depth) {
                case 8:
                        VideoMonitor.mode = VMODE_8BIT;
                        break;
                case 15:
                case 16:
                        // !!! PIXFMT_RGB15 is correct !!!
                        if (format != PIXFMT_RGB15) {
                                ErrorAlert(GetString(STR_WRONG_SCREEN_FORMAT_ERR));
                                return false;
                        }
                        VideoMonitor.mode = VMODE_16BIT;
                        break;
                case 24:
                case 32:
                        if (format != PIXFMT_ARGB32) {
                                ErrorAlert(GetString(STR_WRONG_SCREEN_FORMAT_ERR));
                                return false;
                        }
                        VideoMonitor.mode = VMODE_32BIT;
                        break;
                default:
                        ErrorAlert(GetString(STR_WRONG_SCREEN_DEPTH_ERR));
                        return false;
        }

        // Yes, get width and height
        uint32 width = GetCyberIDAttr(CYBRIDATTR_WIDTH, mode_id);
        uint32 height = GetCyberIDAttr(CYBRIDATTR_HEIGHT, mode_id);

        VideoMonitor.x = width;
        VideoMonitor.y = height;

        // Open screen
        the_screen = OpenScreenTags(NULL,
                SA_DisplayID, mode_id,
                SA_Title, (ULONG)GetString(STR_WINDOW_TITLE),
                SA_Quiet, TRUE,
                SA_Exclusive, TRUE,
                TAG_END
        );
        if (the_screen == NULL) {
                ErrorAlert(GetString(STR_OPEN_SCREEN_ERR));
                return false;
        }

        // Open window
        the_win = OpenWindowTags(NULL,
                WA_Left, 0, WA_Top, 0,
                WA_Width, width, WA_Height, height,
                WA_NoCareRefresh, TRUE,
                WA_Borderless, TRUE,
                WA_Activate, TRUE,
                WA_RMBTrap, TRUE,
                WA_ReportMouse, TRUE,
                WA_CustomScreen, (ULONG)the_screen,
                TAG_END
        );
        if (the_win == NULL) {
                ErrorAlert(GetString(STR_OPEN_WINDOW_ERR));
                return false;
        }

        // Set VideoMonitor
        ScreenToFront(the_screen);
        static UWORD ptr[] = { 0, 0, 0, 0 };
        SetPointer(the_win, ptr, 0, 0, 0, 0);   // Hide mouse pointer
        APTR handle = LockBitMapTags(the_screen->RastPort.BitMap, 
                        LBMI_BASEADDRESS, (ULONG)&VideoMonitor.mac_frame_base,
                        TAG_END);
        UnLockBitMap(handle);
        VideoMonitor.bytes_per_row = GetCyberMapAttr(the_screen->RastPort.BitMap, CYBRMATTR_XMOD);
        return true;
}

bool VideoInit(bool classic)
{
        // Allocate blank mouse pointer data
        null_pointer = (UWORD *)AllocMem(12, MEMF_PUBLIC | MEMF_CHIP | MEMF_CLEAR);
        if (null_pointer == NULL) {
                ErrorAlert(GetString(STR_NO_MEM_ERR));
                return false;
        }

        // Read frame skip prefs
        frame_skip = PrefsFindInt32("frameskip");
        if (frame_skip == 0)
                frame_skip = 1;

        // Get screen mode from preferences
        const char *mode_str;
        if (classic)
                mode_str = "win/512/342";
        else
                mode_str = PrefsFindString("screen");

        // Determine type and mode
        display_type = DISPLAY_WINDOW;
        int width = 512, height = 384;
        ULONG mode_id = 0;
        if (mode_str) {
                if (sscanf(mode_str, "win/%d/%d", &width, &height) == 2)
                        display_type = DISPLAY_WINDOW;
                else if (sscanf(mode_str, "pip/%d/%d", &width, &height) == 2 && P96Base)
                        display_type = DISPLAY_PIP;
                else if (sscanf(mode_str, "scr/%08lx", &mode_id) == 1 && (CyberGfxBase || P96Base)) {
                        if (P96Base && p96GetModeIDAttr(mode_id, P96IDA_ISP96))
                                display_type = DISPLAY_SCREEN_P96;
                        else if (CyberGfxBase && IsCyberModeID(mode_id))
                                display_type = DISPLAY_SCREEN_CGFX;
                        else {
                                ErrorAlert(GetString(STR_NO_P96_MODE_ERR));
                                return false;
                        }
                }
        }

        // Open display
        switch (display_type) {
                case DISPLAY_WINDOW:
                        if (!init_window(width, height))
                                return false;
                        break;

                case DISPLAY_PIP:
                        if (!init_pip(width, height))
                                return false;
                        break;

                case DISPLAY_SCREEN_P96:
                        if (!init_screen_p96(mode_id))
                                return false;
                        break;

                case DISPLAY_SCREEN_CGFX:
                        if (!init_screen_cgfx(mode_id))
                                return false;
                        break;
        }

        // Start periodic process
        periodic_proc = CreateNewProcTags(
                NP_Entry, (ULONG)periodic_func,
                NP_Name, (ULONG)"Basilisk II IDCMP Handler",
                NP_Priority, 0,
                TAG_END
        );
        if (periodic_proc == NULL) {
                ErrorAlert(GetString(STR_NO_MEM_ERR));
                return false;
        }
        return true;
}


/*
 *  Deinitialization
 */

void VideoExit(void)
{
        // Stop periodic process
        if (periodic_proc) {
                SetSignal(0, SIGF_SINGLE);
                Signal(&periodic_proc->pr_Task, SIGBREAKF_CTRL_C);
                Wait(SIGF_SINGLE);
        }

        switch (display_type) {

                case DISPLAY_WINDOW:

                        // Window mode, free bitmap
                        if (the_bitmap) {
                                WaitBlit();
                                FreeBitMap(the_bitmap);
                        }

                        // Free pens and close window
                        if (the_win) {
                                ReleasePen(the_win->WScreen->ViewPort.ColorMap, black_pen);
                                ReleasePen(the_win->WScreen->ViewPort.ColorMap, white_pen);

                                CloseWindow(the_win);
                        }
                        break;

                case DISPLAY_PIP:

                        // Close PIP
                        if (the_win)
                                p96PIP_Close(the_win);
                        break;

                case DISPLAY_SCREEN_P96:

                        // Close window
                        if (the_win)
                                CloseWindow(the_win);

                        // Close screen
                        if (the_screen) {
                                p96CloseScreen(the_screen);
                                the_screen = NULL;
                        }
                        break;

                case DISPLAY_SCREEN_CGFX:

                        // Close window
                        if (the_win)
                                CloseWindow(the_win);

                        // Close screen
                        if (the_screen) {
                                CloseScreen(the_screen);
                                the_screen = NULL;
                        }
                        break;
        }

        // Free mouse pointer
        if (null_pointer) {
                FreeMem(null_pointer, 12);
                null_pointer = NULL;
        }
}


/*
 *  Set palette
 */

void video_set_palette(uint8 *pal)
{
        if (display_type == DISPLAY_SCREEN_P96 || display_type == DISPLAY_SCREEN_CGFX) {

                // Convert palette to 32 bits
                ULONG table[2 + 256 * 3];
                table[0] = 256 << 16;
                table[256 * 3 + 1] = 0;
                for (int i=0; i<256; i++) {
                        table[i*3+1] = pal[i*3] * 0x01010101;
                        table[i*3+2] = pal[i*3+1] * 0x01010101;
                        table[i*3+3] = pal[i*3+2] * 0x01010101;
                }

                // And load it
                LoadRGB32(&the_screen->ViewPort, table);
        }
}


/*
 *  Video message handling (not neccessary under AmigaOS, handled by periodic_func())
 */

void VideoInterrupt(void)
{
}


/*
 *  Process for window refresh and message handling
 */

static __saveds void periodic_func(void)
{
        struct MsgPort *timer_port = NULL;
        struct timerequest *timer_io = NULL;
        struct IntuiMessage *msg;
        ULONG win_mask = 0, timer_mask = 0;

        // Create message port for window and attach it
        struct MsgPort *win_port = CreateMsgPort();
        if (win_port) {
                win_mask = 1 << win_port->mp_SigBit;
                the_win->UserPort = win_port;
                ModifyIDCMP(the_win, IDCMP_MOUSEBUTTONS | IDCMP_MOUSEMOVE | IDCMP_RAWKEY | ((display_type == DISPLAY_SCREEN_P96 || display_type == DISPLAY_SCREEN_CGFX) ? IDCMP_DELTAMOVE : 0));
        }

        // Start 60Hz timer for window refresh
        if (display_type == DISPLAY_WINDOW) {
                timer_port = CreateMsgPort();
                if (timer_port) {
                        timer_io = (struct timerequest *)CreateIORequest(timer_port, sizeof(struct timerequest));
                        if (timer_io) {
                                if (!OpenDevice((UBYTE *)TIMERNAME, UNIT_MICROHZ, (struct IORequest *)timer_io, 0)) {
                                        timer_mask = 1 << timer_port->mp_SigBit;
                                        timer_io->tr_node.io_Command = TR_ADDREQUEST;
                                        timer_io->tr_time.tv_secs = 0;
                                        timer_io->tr_time.tv_micro = 16667 * frame_skip;
                                        SendIO((struct IORequest *)timer_io);
                                }
                        }
                }
        }

        // Main loop
        for (;;) {

                // Wait for timer and/or window (CTRL_C is used for quitting the task)
                ULONG sig = Wait(win_mask | timer_mask | SIGBREAKF_CTRL_C);

                if (sig & SIGBREAKF_CTRL_C)
                        break;

                if (sig & timer_mask) {

                        // Timer tick, update display
                        BltTemplate(the_bitmap->Planes[0], 0, the_bitmap->BytesPerRow, the_win->RPort,
                                the_win->BorderLeft, the_win->BorderTop, VideoMonitor.x, VideoMonitor.y);

                        // Restart timer
                        timer_io->tr_node.io_Command = TR_ADDREQUEST;
                        timer_io->tr_time.tv_secs = 0;
                        timer_io->tr_time.tv_micro = 16667 * frame_skip;
                        SendIO((struct IORequest *)timer_io);
                }

                if (sig & win_mask) {

                        // Handle window messages
                        while (msg = (struct IntuiMessage *)GetMsg(win_port)) {

                                // Get data from message and reply
                                ULONG cl = msg->Class;
                                UWORD code = msg->Code;
                                UWORD qualifier = msg->Qualifier;
                                WORD mx = msg->MouseX;
                                WORD my = msg->MouseY;
                                ReplyMsg((struct Message *)msg);

                                // Handle message according to class
                                switch (cl) {
                                        case IDCMP_MOUSEMOVE:
                                                if (display_type == DISPLAY_SCREEN_P96 || display_type == DISPLAY_SCREEN_CGFX)
                                                        ADBMouseMoved(mx, my);
                                                else {
                                                        ADBMouseMoved(mx - the_win->BorderLeft, my - the_win->BorderTop);
                                                        if (mx < the_win->BorderLeft
                                                         || my < the_win->BorderTop
                                                         || mx >= the_win->BorderLeft + VideoMonitor.x
                                                         || my >= the_win->BorderTop + VideoMonitor.y) {
                                                                if (current_pointer) {
                                                                        ClearPointer(the_win);
                                                                        current_pointer = NULL;
                                                                }
                                                        } else {
                                                                if (current_pointer != null_pointer) {
                                                                        // Hide mouse pointer inside window
                                                                        SetPointer(the_win, null_pointer, 1, 16, 0, 0);
                                                                        current_pointer = null_pointer;
                                                                }
                                                        }
                                                }
                                                break;

                                        case IDCMP_MOUSEBUTTONS:
                                                if (code == SELECTDOWN)
                                                        ADBMouseDown(0);
                                                else if (code == SELECTUP)
                                                        ADBMouseUp(0);
                                                else if (code == MENUDOWN)
                                                        ADBMouseDown(1);
                                                else if (code == MENUUP)
                                                        ADBMouseUp(1);
                                                else if (code == MIDDLEDOWN)
                                                        ADBMouseDown(2);
                                                else if (code == MIDDLEUP)
                                                        ADBMouseUp(2);
                                                break;

                                        case IDCMP_RAWKEY:
                                                if (qualifier & IEQUALIFIER_REPEAT)     // Keyboard repeat is done by MacOS
                                                        break;
                                                if ((qualifier & (IEQUALIFIER_LALT | IEQUALIFIER_LSHIFT | IEQUALIFIER_CONTROL)) ==
                                                    (IEQUALIFIER_LALT | IEQUALIFIER_LSHIFT | IEQUALIFIER_CONTROL) && code == 0x5f) {
                                                        SetInterruptFlag(INTFLAG_NMI);
                                                        TriggerInterrupt();
                                                        break;
                                                }

                                                if (code & IECODE_UP_PREFIX)
                                                        ADBKeyUp(keycode2mac[code & 0x7f]);
                                                else
                                                        ADBKeyDown(keycode2mac[code & 0x7f]);
                                                break;
                                }
                        }
                }
        }

        // Stop timer
        if (timer_io) {
                if (!CheckIO((struct IORequest *)timer_io))
                        AbortIO((struct IORequest *)timer_io);
                WaitIO((struct IORequest *)timer_io);
                CloseDevice((struct IORequest *)timer_io);
                DeleteIORequest(timer_io);
        }
        if (timer_port)
                DeleteMsgPort(timer_port);

        // Remove port from window and delete it
        Forbid();
        msg = (struct IntuiMessage *)win_port->mp_MsgList.lh_Head;
        struct Node *succ;
        while (succ = msg->ExecMessage.mn_Node.ln_Succ) {
                if (msg->IDCMPWindow == the_win) {
                        Remove((struct Node *)msg);
                        ReplyMsg((struct Message *)msg);
                }
                msg = (struct IntuiMessage *)succ;
        }
        the_win->UserPort = NULL;
        ModifyIDCMP(the_win, 0);
        Permit();
        DeleteMsgPort(win_port);

        // Main task asked for termination, send signal
        Forbid();
        Signal(MainTask, SIGF_SINGLE);
}
Revision:	1.12
Committed:	2001-02-02T20:52:57Z (23 years, 10 months ago) by cebix
Branch:	MAIN
CVS Tags:	snapshot-17022001, snapshot-29052001, release-0_9-1
Changes since 1.11:	+1 -1 lines
Log Message:	- bumped version number to 0.9 - updated copyright dates
#	User	Rev	Content
1	cebix	1.1	/*
2			* video_amiga.cpp - Video/graphics emulation, AmigaOS specific stuff
3			*
4	cebix	1.12	* Basilisk II (C) 1997-2001 Christian Bauer
5	cebix	1.1	*
6			* This program is free software; you can redistribute it and/or modify
7			* it under the terms of the GNU General Public License as published by
8			* the Free Software Foundation; either version 2 of the License, or
9			* (at your option) any later version.
10			*
11			* This program is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with this program; if not, write to the Free Software
18			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19			*/
20
21			#include <exec/types.h>
22			#include <intuition/intuition.h>
23			#include <graphics/rastport.h>
24			#include <graphics/gfx.h>
25	cebix	1.7	#include <cybergraphics/cybergraphics.h>
26	cebix	1.1	#include <dos/dostags.h>
27			#include <devices/timer.h>
28			#include <proto/exec.h>
29			#include <proto/dos.h>
30			#include <proto/intuition.h>
31			#include <proto/graphics.h>
32			#include <proto/Picasso96.h>
33	cebix	1.4	#include <proto/cybergraphics.h>
34	cebix	1.1
35			#include "sysdeps.h"
36	jlachmann	1.9	#include "cpu_emulation.h"
37	cebix	1.1	#include "main.h"
38			#include "adb.h"
39			#include "prefs.h"
40			#include "user_strings.h"
41			#include "video.h"
42
43	cebix	1.4	#define DEBUG 0
44	cebix	1.1	#include "debug.h"
45
46
47			// Display types
48			enum {
49			DISPLAY_WINDOW,
50			DISPLAY_PIP,
51	cebix	1.6	DISPLAY_SCREEN_P96,
52			DISPLAY_SCREEN_CGFX
53	cebix	1.1	};
54
55			// Global variables
56			static int32 frame_skip;
57			static int display_type = DISPLAY_WINDOW; // See enum above
58			static struct Screen *the_screen = NULL;
59			static struct Window *the_win = NULL;
60			static struct BitMap *the_bitmap = NULL;
61	cebix	1.8	static UWORD *null_pointer = NULL; // Blank mouse pointer data
62			static UWORD current_pointer = (UWORD )-1; // Currently visible mouse pointer data
63	cebix	1.1	static LONG black_pen = -1, white_pen = -1;
64			static struct Process *periodic_proc = NULL; // Periodic process
65
66			extern struct Task *MainTask; // Pointer to main task (from main_amiga.cpp)
67
68
69			// Amiga -> Mac raw keycode translation table
70			static const uint8 keycode2mac[0x80] = {
71			0x0a, 0x12, 0x13, 0x14, 0x15, 0x17, 0x16, 0x1a, // ` 1 2 3 4 5 6 7
72			0x1c, 0x19, 0x1d, 0x1b, 0x18, 0x2a, 0xff, 0x52, // 8 9 0 - = \ inv 0
73			0x0c, 0x0d, 0x0e, 0x0f, 0x11, 0x10, 0x20, 0x22, // Q W E R T Y U I
74			0x1f, 0x23, 0x21, 0x1e, 0xff, 0x53, 0x54, 0x55, // O P [ ] inv 1 2 3
75			0x00, 0x01, 0x02, 0x03, 0x05, 0x04, 0x26, 0x28, // A S D F G H J K
76			0x25, 0x29, 0x27, 0x2a, 0xff, 0x56, 0x57, 0x58, // L ; ' # inv 4 5 6
77			0x32, 0x06, 0x07, 0x08, 0x09, 0x0b, 0x2d, 0x2e, // < Z X C V B N M
78			0x2b, 0x2f, 0x2c, 0xff, 0x41, 0x59, 0x5b, 0x5c, // , . / inv . 7 8 9
79			0x31, 0x33, 0x30, 0x4c, 0x24, 0x35, 0x75, 0xff, // SPC BSP TAB ENT RET ESC DEL inv
80			0xff, 0xff, 0x4e, 0xff, 0x3e, 0x3d, 0x3c, 0x3b, // inv inv - inv CUP CDN CRT CLF
81			0x7a, 0x78, 0x63, 0x76, 0x60, 0x61, 0x62, 0x64, // F1 F2 F3 F4 F5 F6 F7 F8
82			0x65, 0x6d, 0x47, 0x51, 0x4b, 0x43, 0x45, 0x72, // F9 F10 ( ) / * + HLP
83			0x38, 0x38, 0x39, 0x36, 0x3a, 0x3a, 0x37, 0x37, // SHL SHR CAP CTL ALL ALR AML AMR
84			0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, // inv inv inv inv inv inv inv inv
85			0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, // inv inv inv inv inv inv inv inv
86			0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff // inv inv inv inv inv inv inv inv
87			};
88
89
90			// Prototypes
91			static void periodic_func(void);
92
93
94			/*
95			* Initialization
96			*/
97
98			// Open window
99			static bool init_window(int width, int height)
100			{
101			// Set absolute mouse mode
102			ADBSetRelMouseMode(false);
103
104			// Open window
105			the_win = OpenWindowTags(NULL,
106			WA_Left, 0, WA_Top, 0,
107			WA_InnerWidth, width, WA_InnerHeight, height,
108			WA_SimpleRefresh, TRUE,
109			WA_NoCareRefresh, TRUE,
110			WA_Activate, TRUE,
111			WA_RMBTrap, TRUE,
112			WA_ReportMouse, TRUE,
113			WA_DragBar, TRUE,
114			WA_DepthGadget, TRUE,
115			WA_SizeGadget, FALSE,
116	cebix	1.2	WA_Title, (ULONG)GetString(STR_WINDOW_TITLE),
117	cebix	1.1	TAG_END
118			);
119			if (the_win == NULL) {
120			ErrorAlert(GetString(STR_OPEN_WINDOW_ERR));
121			return false;
122			}
123
124			// Create bitmap ("height + 2" for safety)
125			the_bitmap = AllocBitMap(width, height + 2, 1, BMF_CLEAR, NULL);
126			if (the_bitmap == NULL) {
127			ErrorAlert(GetString(STR_NO_MEM_ERR));
128			return false;
129			}
130
131			// Set VideoMonitor
132			VideoMonitor.mac_frame_base = (uint32)the_bitmap->Planes[0];
133			VideoMonitor.bytes_per_row = the_bitmap->BytesPerRow;
134			VideoMonitor.x = width;
135			VideoMonitor.y = height;
136			VideoMonitor.mode = VMODE_1BIT;
137
138			// Set FgPen and BgPen
139			black_pen = ObtainBestPenA(the_win->WScreen->ViewPort.ColorMap, 0, 0, 0, NULL);
140			white_pen = ObtainBestPenA(the_win->WScreen->ViewPort.ColorMap, 0xffffffff, 0xffffffff, 0xffffffff, NULL);
141			SetAPen(the_win->RPort, black_pen);
142			SetBPen(the_win->RPort, white_pen);
143			SetDrMd(the_win->RPort, JAM2);
144			return true;
145			}
146
147			// Open PIP (requires Picasso96)
148			static bool init_pip(int width, int height)
149			{
150			// Set absolute mouse mode
151			ADBSetRelMouseMode(false);
152
153			// Open window
154			ULONG error = 0;
155			the_win = p96PIP_OpenTags(
156			P96PIP_SourceFormat, RGBFB_R5G5B5,
157			P96PIP_SourceWidth, width,
158			P96PIP_SourceHeight, height,
159	cebix	1.2	P96PIP_ErrorCode, (ULONG)&error,
160	cebix	1.1	WA_Left, 0, WA_Top, 0,
161			WA_InnerWidth, width, WA_InnerHeight, height,
162			WA_SimpleRefresh, TRUE,
163			WA_NoCareRefresh, TRUE,
164			WA_Activate, TRUE,
165			WA_RMBTrap, TRUE,
166			WA_ReportMouse, TRUE,
167			WA_DragBar, TRUE,
168			WA_DepthGadget, TRUE,
169			WA_SizeGadget, FALSE,
170	cebix	1.2	WA_Title, (ULONG)GetString(STR_WINDOW_TITLE),
171			WA_PubScreenName, (ULONG)"Workbench",
172	cebix	1.1	TAG_END
173			);
174			if (the_win == NULL \|\| error) {
175			ErrorAlert(GetString(STR_OPEN_WINDOW_ERR));
176			return false;
177			}
178
179			// Find bitmap
180	cebix	1.2	p96PIP_GetTags(the_win, P96PIP_SourceBitMap, (ULONG)&the_bitmap, TAG_END);
181	cebix	1.1
182			// Set VideoMonitor
183			VideoMonitor.mac_frame_base = p96GetBitMapAttr(the_bitmap, P96BMA_MEMORY);
184			VideoMonitor.bytes_per_row = p96GetBitMapAttr(the_bitmap, P96BMA_BYTESPERROW);
185			VideoMonitor.x = width;
186			VideoMonitor.y = height;
187			VideoMonitor.mode = VMODE_16BIT;
188			return true;
189			}
190
191	cebix	1.6	// Open Picasso96 screen
192			static bool init_screen_p96(ULONG mode_id)
193	cebix	1.1	{
194			// Set relative mouse mode
195			ADBSetRelMouseMode(true);
196
197	cebix	1.6	// Check if the mode is one we can handle
198			uint32 depth = p96GetModeIDAttr(mode_id, P96IDA_DEPTH);
199			uint32 format = p96GetModeIDAttr(mode_id, P96IDA_RGBFORMAT);
200
201			switch (depth) {
202			case 8:
203			VideoMonitor.mode = VMODE_8BIT;
204			break;
205			case 15:
206			case 16:
207			if (format != RGBFB_R5G5B5) {
208			ErrorAlert(GetString(STR_WRONG_SCREEN_FORMAT_ERR));
209			return false;
210			}
211			VideoMonitor.mode = VMODE_16BIT;
212			break;
213			case 24:
214			case 32:
215			if (format != RGBFB_A8R8G8B8) {
216			ErrorAlert(GetString(STR_WRONG_SCREEN_FORMAT_ERR));
217			return false;
218			}
219			VideoMonitor.mode = VMODE_32BIT;
220			break;
221			default:
222			ErrorAlert(GetString(STR_WRONG_SCREEN_DEPTH_ERR));
223			return false;
224			}
225
226			// Yes, get width and height
227			uint32 width = p96GetModeIDAttr(mode_id, P96IDA_WIDTH);
228			uint32 height = p96GetModeIDAttr(mode_id, P96IDA_HEIGHT);
229
230			VideoMonitor.x = width;
231			VideoMonitor.y = height;
232
233			// Open screen
234			the_screen = p96OpenScreenTags(
235			P96SA_DisplayID, mode_id,
236			P96SA_Title, (ULONG)GetString(STR_WINDOW_TITLE),
237			P96SA_Quiet, TRUE,
238			P96SA_NoMemory, TRUE,
239			P96SA_NoSprite, TRUE,
240			P96SA_Exclusive, TRUE,
241			TAG_END
242			);
243			if (the_screen == NULL) {
244			ErrorAlert(GetString(STR_OPEN_SCREEN_ERR));
245	cebix	1.1	return false;
246			}
247
248	cebix	1.6	// Open window
249			the_win = OpenWindowTags(NULL,
250			WA_Left, 0, WA_Top, 0,
251			WA_Width, width, WA_Height, height,
252			WA_NoCareRefresh, TRUE,
253			WA_Borderless, TRUE,
254			WA_Activate, TRUE,
255			WA_RMBTrap, TRUE,
256			WA_ReportMouse, TRUE,
257			WA_CustomScreen, (ULONG)the_screen,
258			TAG_END
259			);
260			if (the_win == NULL) {
261			ErrorAlert(GetString(STR_OPEN_WINDOW_ERR));
262			return false;
263			}
264
265			// Set VideoMonitor
266			ScreenToFront(the_screen);
267			VideoMonitor.mac_frame_base = p96GetBitMapAttr(the_screen->RastPort.BitMap, P96BMA_MEMORY);
268			VideoMonitor.bytes_per_row = p96GetBitMapAttr(the_screen->RastPort.BitMap, P96BMA_BYTESPERROW);
269			return true;
270			}
271
272			// Open CyberGraphX screen
273			static bool init_screen_cgfx(ULONG mode_id)
274			{
275			// Set relative mouse mode
276			ADBSetRelMouseMode(true);
277	cebix	1.4
278	cebix	1.1	// Check if the mode is one we can handle
279	cebix	1.6	uint32 depth = GetCyberIDAttr(CYBRIDATTR_DEPTH, mode_id);
280			uint32 format = GetCyberIDAttr(CYBRIDATTR_PIXFMT, mode_id);
281	cebix	1.4
282	cebix	1.1	switch (depth) {
283			case 8:
284			VideoMonitor.mode = VMODE_8BIT;
285			break;
286			case 15:
287			case 16:
288	jlachmann	1.9	// !!! PIXFMT_RGB15 is correct !!!
289			if (format != PIXFMT_RGB15) {
290	cebix	1.1	ErrorAlert(GetString(STR_WRONG_SCREEN_FORMAT_ERR));
291			return false;
292			}
293			VideoMonitor.mode = VMODE_16BIT;
294			break;
295			case 24:
296			case 32:
297	cebix	1.6	if (format != PIXFMT_ARGB32) {
298	cebix	1.1	ErrorAlert(GetString(STR_WRONG_SCREEN_FORMAT_ERR));
299			return false;
300			}
301			VideoMonitor.mode = VMODE_32BIT;
302			break;
303			default:
304			ErrorAlert(GetString(STR_WRONG_SCREEN_DEPTH_ERR));
305			return false;
306			}
307
308			// Yes, get width and height
309	cebix	1.6	uint32 width = GetCyberIDAttr(CYBRIDATTR_WIDTH, mode_id);
310			uint32 height = GetCyberIDAttr(CYBRIDATTR_HEIGHT, mode_id);
311	cebix	1.4
312	cebix	1.1	VideoMonitor.x = width;
313			VideoMonitor.y = height;
314
315			// Open screen
316	cebix	1.6	the_screen = OpenScreenTags(NULL,
317			SA_DisplayID, mode_id,
318			SA_Title, (ULONG)GetString(STR_WINDOW_TITLE),
319			SA_Quiet, TRUE,
320			SA_Exclusive, TRUE,
321			TAG_END
322			);
323	cebix	1.1	if (the_screen == NULL) {
324			ErrorAlert(GetString(STR_OPEN_SCREEN_ERR));
325			return false;
326			}
327
328			// Open window
329			the_win = OpenWindowTags(NULL,
330			WA_Left, 0, WA_Top, 0,
331			WA_Width, width, WA_Height, height,
332			WA_NoCareRefresh, TRUE,
333			WA_Borderless, TRUE,
334			WA_Activate, TRUE,
335			WA_RMBTrap, TRUE,
336			WA_ReportMouse, TRUE,
337	cebix	1.2	WA_CustomScreen, (ULONG)the_screen,
338	cebix	1.1	TAG_END
339			);
340			if (the_win == NULL) {
341			ErrorAlert(GetString(STR_OPEN_WINDOW_ERR));
342			return false;
343			}
344
345			// Set VideoMonitor
346			ScreenToFront(the_screen);
347	cebix	1.6	static UWORD ptr[] = { 0, 0, 0, 0 };
348			SetPointer(the_win, ptr, 0, 0, 0, 0); // Hide mouse pointer
349			APTR handle = LockBitMapTags(the_screen->RastPort.BitMap,
350			LBMI_BASEADDRESS, (ULONG)&VideoMonitor.mac_frame_base,
351			TAG_END);
352			UnLockBitMap(handle);
353			VideoMonitor.bytes_per_row = GetCyberMapAttr(the_screen->RastPort.BitMap, CYBRMATTR_XMOD);
354	cebix	1.1	return true;
355			}
356
357			bool VideoInit(bool classic)
358			{
359	cebix	1.8	// Allocate blank mouse pointer data
360			null_pointer = (UWORD *)AllocMem(12, MEMF_PUBLIC \| MEMF_CHIP \| MEMF_CLEAR);
361			if (null_pointer == NULL) {
362			ErrorAlert(GetString(STR_NO_MEM_ERR));
363			return false;
364			}
365
366	cebix	1.1	// Read frame skip prefs
367			frame_skip = PrefsFindInt32("frameskip");
368			if (frame_skip == 0)
369			frame_skip = 1;
370
371			// Get screen mode from preferences
372			const char *mode_str;
373			if (classic)
374			mode_str = "win/512/342";
375			else
376			mode_str = PrefsFindString("screen");
377
378			// Determine type and mode
379			display_type = DISPLAY_WINDOW;
380			int width = 512, height = 384;
381			ULONG mode_id = 0;
382			if (mode_str) {
383			if (sscanf(mode_str, "win/%d/%d", &width, &height) == 2)
384			display_type = DISPLAY_WINDOW;
385			else if (sscanf(mode_str, "pip/%d/%d", &width, &height) == 2 && P96Base)
386			display_type = DISPLAY_PIP;
387	cebix	1.6	else if (sscanf(mode_str, "scr/%08lx", &mode_id) == 1 && (CyberGfxBase \|\| P96Base)) {
388			if (P96Base && p96GetModeIDAttr(mode_id, P96IDA_ISP96))
389			display_type = DISPLAY_SCREEN_P96;
390			else if (CyberGfxBase && IsCyberModeID(mode_id))
391			display_type = DISPLAY_SCREEN_CGFX;
392			else {
393			ErrorAlert(GetString(STR_NO_P96_MODE_ERR));
394			return false;
395			}
396			}
397	cebix	1.1	}
398
399			// Open display
400			switch (display_type) {
401			case DISPLAY_WINDOW:
402			if (!init_window(width, height))
403			return false;
404			break;
405
406			case DISPLAY_PIP:
407			if (!init_pip(width, height))
408			return false;
409			break;
410
411	cebix	1.6	case DISPLAY_SCREEN_P96:
412			if (!init_screen_p96(mode_id))
413			return false;
414			break;
415
416			case DISPLAY_SCREEN_CGFX:
417			if (!init_screen_cgfx(mode_id))
418	cebix	1.1	return false;
419			break;
420			}
421
422			// Start periodic process
423			periodic_proc = CreateNewProcTags(
424	cebix	1.2	NP_Entry, (ULONG)periodic_func,
425			NP_Name, (ULONG)"Basilisk II IDCMP Handler",
426	cebix	1.1	NP_Priority, 0,
427			TAG_END
428			);
429			if (periodic_proc == NULL) {
430			ErrorAlert(GetString(STR_NO_MEM_ERR));
431			return false;
432			}
433			return true;
434			}
435
436
437			/*
438			* Deinitialization
439			*/
440
441			void VideoExit(void)
442			{
443			// Stop periodic process
444			if (periodic_proc) {
445			SetSignal(0, SIGF_SINGLE);
446			Signal(&periodic_proc->pr_Task, SIGBREAKF_CTRL_C);
447			Wait(SIGF_SINGLE);
448			}
449
450			switch (display_type) {
451
452			case DISPLAY_WINDOW:
453
454			// Window mode, free bitmap
455			if (the_bitmap) {
456			WaitBlit();
457			FreeBitMap(the_bitmap);
458			}
459
460			// Free pens and close window
461			if (the_win) {
462			ReleasePen(the_win->WScreen->ViewPort.ColorMap, black_pen);
463			ReleasePen(the_win->WScreen->ViewPort.ColorMap, white_pen);
464
465			CloseWindow(the_win);
466			}
467			break;
468
469			case DISPLAY_PIP:
470
471			// Close PIP
472			if (the_win)
473			p96PIP_Close(the_win);
474			break;
475
476	cebix	1.6	case DISPLAY_SCREEN_P96:
477	cebix	1.1
478			// Close window
479			if (the_win)
480			CloseWindow(the_win);
481
482			// Close screen
483	cebix	1.4	if (the_screen) {
484	cebix	1.6	p96CloseScreen(the_screen);
485			the_screen = NULL;
486			}
487			break;
488
489			case DISPLAY_SCREEN_CGFX:
490
491			// Close window
492			if (the_win)
493			CloseWindow(the_win);
494	cebix	1.4
495	cebix	1.6	// Close screen
496			if (the_screen) {
497			CloseScreen(the_screen);
498	cebix	1.4	the_screen = NULL;
499			}
500	cebix	1.1	break;
501			}
502	cebix	1.8
503			// Free mouse pointer
504			if (null_pointer) {
505			FreeMem(null_pointer, 12);
506			null_pointer = NULL;
507			}
508	cebix	1.1	}
509
510
511			/*
512			* Set palette
513			*/
514
515			void video_set_palette(uint8 *pal)
516			{
517	cebix	1.6	if (display_type == DISPLAY_SCREEN_P96 \|\| display_type == DISPLAY_SCREEN_CGFX) {
518	cebix	1.1
519			// Convert palette to 32 bits
520			ULONG table[2 + 256 * 3];
521			table[0] = 256 << 16;
522			table[256 * 3 + 1] = 0;
523			for (int i=0; i<256; i++) {
524			table[i3+1] = pal[i3] * 0x01010101;
525			table[i3+2] = pal[i3+1] * 0x01010101;
526			table[i3+3] = pal[i3+2] * 0x01010101;
527			}
528
529			// And load it
530			LoadRGB32(&the_screen->ViewPort, table);
531			}
532			}
533
534
535			/*
536			* Video message handling (not neccessary under AmigaOS, handled by periodic_func())
537			*/
538
539			void VideoInterrupt(void)
540			{
541			}
542
543
544			/*
545			* Process for window refresh and message handling
546			*/
547
548			static __saveds void periodic_func(void)
549			{
550			struct MsgPort *timer_port = NULL;
551			struct timerequest *timer_io = NULL;
552			struct IntuiMessage *msg;
553			ULONG win_mask = 0, timer_mask = 0;
554
555			// Create message port for window and attach it
556			struct MsgPort *win_port = CreateMsgPort();
557			if (win_port) {
558			win_mask = 1 << win_port->mp_SigBit;
559			the_win->UserPort = win_port;
560	cebix	1.6	ModifyIDCMP(the_win, IDCMP_MOUSEBUTTONS \| IDCMP_MOUSEMOVE \| IDCMP_RAWKEY \| ((display_type == DISPLAY_SCREEN_P96 \|\| display_type == DISPLAY_SCREEN_CGFX) ? IDCMP_DELTAMOVE : 0));
561	cebix	1.1	}
562
563			// Start 60Hz timer for window refresh
564			if (display_type == DISPLAY_WINDOW) {
565			timer_port = CreateMsgPort();
566			if (timer_port) {
567			timer_io = (struct timerequest *)CreateIORequest(timer_port, sizeof(struct timerequest));
568			if (timer_io) {
569			if (!OpenDevice((UBYTE )TIMERNAME, UNIT_MICROHZ, (struct IORequest )timer_io, 0)) {
570			timer_mask = 1 << timer_port->mp_SigBit;
571			timer_io->tr_node.io_Command = TR_ADDREQUEST;
572			timer_io->tr_time.tv_secs = 0;
573			timer_io->tr_time.tv_micro = 16667 * frame_skip;
574			SendIO((struct IORequest *)timer_io);
575			}
576			}
577			}
578			}
579
580			// Main loop
581			for (;;) {
582
583			// Wait for timer and/or window (CTRL_C is used for quitting the task)
584			ULONG sig = Wait(win_mask \| timer_mask \| SIGBREAKF_CTRL_C);
585
586			if (sig & SIGBREAKF_CTRL_C)
587			break;
588
589			if (sig & timer_mask) {
590
591			// Timer tick, update display
592			BltTemplate(the_bitmap->Planes[0], 0, the_bitmap->BytesPerRow, the_win->RPort,
593			the_win->BorderLeft, the_win->BorderTop, VideoMonitor.x, VideoMonitor.y);
594
595			// Restart timer
596			timer_io->tr_node.io_Command = TR_ADDREQUEST;
597			timer_io->tr_time.tv_secs = 0;
598			timer_io->tr_time.tv_micro = 16667 * frame_skip;
599			SendIO((struct IORequest *)timer_io);
600			}
601
602			if (sig & win_mask) {
603
604			// Handle window messages
605			while (msg = (struct IntuiMessage *)GetMsg(win_port)) {
606
607			// Get data from message and reply
608			ULONG cl = msg->Class;
609			UWORD code = msg->Code;
610			UWORD qualifier = msg->Qualifier;
611			WORD mx = msg->MouseX;
612			WORD my = msg->MouseY;
613			ReplyMsg((struct Message *)msg);
614
615			// Handle message according to class
616			switch (cl) {
617			case IDCMP_MOUSEMOVE:
618	cebix	1.7	if (display_type == DISPLAY_SCREEN_P96 \|\| display_type == DISPLAY_SCREEN_CGFX)
619	cebix	1.1	ADBMouseMoved(mx, my);
620	cebix	1.8	else {
621	cebix	1.1	ADBMouseMoved(mx - the_win->BorderLeft, my - the_win->BorderTop);
622	cebix	1.8	if (mx < the_win->BorderLeft
623			\|\| my < the_win->BorderTop
624			\|\| mx >= the_win->BorderLeft + VideoMonitor.x
625			\|\| my >= the_win->BorderTop + VideoMonitor.y) {
626			if (current_pointer) {
627			ClearPointer(the_win);
628			current_pointer = NULL;
629			}
630			} else {
631			if (current_pointer != null_pointer) {
632			// Hide mouse pointer inside window
633			SetPointer(the_win, null_pointer, 1, 16, 0, 0);
634			current_pointer = null_pointer;
635			}
636			}
637			}
638	cebix	1.1	break;
639
640			case IDCMP_MOUSEBUTTONS:
641			if (code == SELECTDOWN)
642			ADBMouseDown(0);
643			else if (code == SELECTUP)
644			ADBMouseUp(0);
645			else if (code == MENUDOWN)
646			ADBMouseDown(1);
647			else if (code == MENUUP)
648			ADBMouseUp(1);
649			else if (code == MIDDLEDOWN)
650			ADBMouseDown(2);
651			else if (code == MIDDLEUP)
652			ADBMouseUp(2);
653			break;
654
655			case IDCMP_RAWKEY:
656			if (qualifier & IEQUALIFIER_REPEAT) // Keyboard repeat is done by MacOS
657			break;
658	cebix	1.11	if ((qualifier & (IEQUALIFIER_LALT \| IEQUALIFIER_LSHIFT \| IEQUALIFIER_CONTROL)) ==
659			(IEQUALIFIER_LALT \| IEQUALIFIER_LSHIFT \| IEQUALIFIER_CONTROL) && code == 0x5f) {
660	jlachmann	1.9	SetInterruptFlag(INTFLAG_NMI);
661			TriggerInterrupt();
662			break;
663	cebix	1.10	}
664	jlachmann	1.9
665	cebix	1.1	if (code & IECODE_UP_PREFIX)
666			ADBKeyUp(keycode2mac[code & 0x7f]);
667			else
668			ADBKeyDown(keycode2mac[code & 0x7f]);
669			break;
670			}
671			}
672			}
673			}
674
675			// Stop timer
676			if (timer_io) {
677			if (!CheckIO((struct IORequest *)timer_io))
678			AbortIO((struct IORequest *)timer_io);
679			WaitIO((struct IORequest *)timer_io);
680			CloseDevice((struct IORequest *)timer_io);
681			DeleteIORequest(timer_io);
682			}
683			if (timer_port)
684			DeleteMsgPort(timer_port);
685
686			// Remove port from window and delete it
687			Forbid();
688			msg = (struct IntuiMessage *)win_port->mp_MsgList.lh_Head;
689			struct Node *succ;
690			while (succ = msg->ExecMessage.mn_Node.ln_Succ) {
691			if (msg->IDCMPWindow == the_win) {
692			Remove((struct Node *)msg);
693			ReplyMsg((struct Message *)msg);
694			}
695			msg = (struct IntuiMessage *)succ;
696			}
697			the_win->UserPort = NULL;
698			ModifyIDCMP(the_win, 0);
699			Permit();
700			DeleteMsgPort(win_port);
701
702			// Main task asked for termination, send signal
703			Forbid();
704			Signal(MainTask, SIGF_SINGLE);
705			}