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
 */

// Add resolution to list of supported modes and set VideoMonitor
static void set_video_monitor(uint32 width, uint32 height, uint32 bytes_per_row, int depth)
{
        video_mode mode;

        mode.x = width;
        mode.y = height;
        mode.resolution_id = 0x80;
        mode.bytes_per_row = bytes_per_row;

        switch (depth) {
                case 1:
                        mode.depth = VDEPTH_1BIT;
                        break;
                case 2:
                        mode.depth = VDEPTH_2BIT;
                        break;
                case 4:
                        mode.depth = VDEPTH_4BIT;
                        break;
                case 8:
                        mode.depth = VDEPTH_8BIT;
                        break;
                case 15:
                        mode.depth = VDEPTH_16BIT;
                        break;
                case 16:
                        mode.depth = VDEPTH_16BIT;
                        break;
                case 24:
                case 32:
                        mode.depth = VDEPTH_32BIT;
                        break;
        }

        VideoModes.push_back(mode);
        VideoMonitor.mode = mode;
}

// 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;
        }

        // Add resolution and set VideoMonitor
        set_video_monitor(width, height, the_bitmap->BytesPerRow, 1);
        VideoMonitor.mac_frame_base = (uint32)the_bitmap->Planes[0];

        // 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);

        // Add resolution and set VideoMonitor
        set_video_monitor(width, height, p96GetBitMapAttr(the_bitmap, P96BMA_BYTESPERROW), 16);
        VideoMonitor.mac_frame_base = p96GetBitMapAttr(the_bitmap, P96BMA_MEMORY);
        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:
                        break;
                case 15:
                case 16:
                        if (format != RGBFB_R5G5B5) {
                                ErrorAlert(GetString(STR_WRONG_SCREEN_FORMAT_ERR));
                                return false;
                        }
                        break;
                case 24:
                case 32:
                        if (format != RGBFB_A8R8G8B8) {
                                ErrorAlert(GetString(STR_WRONG_SCREEN_FORMAT_ERR));
                                return false;
                        }
                        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);

        // 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;
        }

        ScreenToFront(the_screen);

        // Add resolution and set VideoMonitor
        set_video_monitor(width, height, p96GetBitMapAttr(the_screen->RastPort.BitMap, P96BMA_BYTESPERROW), depth);
        VideoMonitor.mac_frame_base = p96GetBitMapAttr(the_screen->RastPort.BitMap, P96BMA_MEMORY);
        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:
                        break;
                case 15:
                case 16:
                        // !!! PIXFMT_RGB15 is correct !!!
                        if (format != PIXFMT_RGB15) {
                                ErrorAlert(GetString(STR_WRONG_SCREEN_FORMAT_ERR));
                                return false;
                        }
                        break;
                case 24:
                case 32:
                        if (format != PIXFMT_ARGB32) {
                                ErrorAlert(GetString(STR_WRONG_SCREEN_FORMAT_ERR));
                                return false;
                        }
                        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);

        // 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;
        }

        ScreenToFront(the_screen);
        static UWORD ptr[] = { 0, 0, 0, 0 };
        SetPointer(the_win, ptr, 0, 0, 0, 0);   // Hide mouse pointer

        // Set VideoMonitor
        ULONG frame_base;
        APTR handle = LockBitMapTags(the_screen->RastPort.BitMap, 
                LBMI_BASEADDRESS, (ULONG)&frame_base,
                TAG_END
        );
        UnLockBitMap(handle);
        set_video_monitor(width, height, GetCyberMapAttr(the_screen->RastPort.BitMap, CYBRMATTR_XMOD), depth);
        VideoMonitor.mac_frame_base = frame_base;
        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);
        }
}


/*
 *  Switch video mode
 */

void video_switch_to_mode(const video_mode &mode)
{
}


/*
 *  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.mode.x, VideoMonitor.mode.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.mode.x
                                                         || my >= the_win->BorderTop + VideoMonitor.mode.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:	1.14
Committed:	2001-06-27T20:05:29Z (23 years, 4 months ago) by cebix
Branch:	MAIN
Changes since 1.13:	+9 -0 lines
Log Message:	depth/resolution switching infrastructure should be complete now; slot ROM contains all supported depths, default mode is stored in XPRAM upon startup, and added video_switch_to_mode() call (currently unimplemented in all drivers)
#	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	cebix	1.13	// Add resolution to list of supported modes and set VideoMonitor
99			static void set_video_monitor(uint32 width, uint32 height, uint32 bytes_per_row, int depth)
100			{
101			video_mode mode;
102
103			mode.x = width;
104			mode.y = height;
105			mode.resolution_id = 0x80;
106			mode.bytes_per_row = bytes_per_row;
107
108			switch (depth) {
109			case 1:
110			mode.depth = VDEPTH_1BIT;
111			break;
112			case 2:
113			mode.depth = VDEPTH_2BIT;
114			break;
115			case 4:
116			mode.depth = VDEPTH_4BIT;
117			break;
118			case 8:
119			mode.depth = VDEPTH_8BIT;
120			break;
121			case 15:
122			mode.depth = VDEPTH_16BIT;
123			break;
124			case 16:
125			mode.depth = VDEPTH_16BIT;
126			break;
127			case 24:
128			case 32:
129			mode.depth = VDEPTH_32BIT;
130			break;
131			}
132
133			VideoModes.push_back(mode);
134			VideoMonitor.mode = mode;
135			}
136
137	cebix	1.1	// Open window
138			static bool init_window(int width, int height)
139			{
140			// Set absolute mouse mode
141			ADBSetRelMouseMode(false);
142
143			// Open window
144			the_win = OpenWindowTags(NULL,
145			WA_Left, 0, WA_Top, 0,
146			WA_InnerWidth, width, WA_InnerHeight, height,
147			WA_SimpleRefresh, TRUE,
148			WA_NoCareRefresh, TRUE,
149			WA_Activate, TRUE,
150			WA_RMBTrap, TRUE,
151			WA_ReportMouse, TRUE,
152			WA_DragBar, TRUE,
153			WA_DepthGadget, TRUE,
154			WA_SizeGadget, FALSE,
155	cebix	1.2	WA_Title, (ULONG)GetString(STR_WINDOW_TITLE),
156	cebix	1.1	TAG_END
157			);
158			if (the_win == NULL) {
159			ErrorAlert(GetString(STR_OPEN_WINDOW_ERR));
160			return false;
161			}
162
163			// Create bitmap ("height + 2" for safety)
164			the_bitmap = AllocBitMap(width, height + 2, 1, BMF_CLEAR, NULL);
165			if (the_bitmap == NULL) {
166			ErrorAlert(GetString(STR_NO_MEM_ERR));
167			return false;
168			}
169
170	cebix	1.13	// Add resolution and set VideoMonitor
171			set_video_monitor(width, height, the_bitmap->BytesPerRow, 1);
172	cebix	1.1	VideoMonitor.mac_frame_base = (uint32)the_bitmap->Planes[0];
173
174			// Set FgPen and BgPen
175			black_pen = ObtainBestPenA(the_win->WScreen->ViewPort.ColorMap, 0, 0, 0, NULL);
176			white_pen = ObtainBestPenA(the_win->WScreen->ViewPort.ColorMap, 0xffffffff, 0xffffffff, 0xffffffff, NULL);
177			SetAPen(the_win->RPort, black_pen);
178			SetBPen(the_win->RPort, white_pen);
179			SetDrMd(the_win->RPort, JAM2);
180			return true;
181			}
182
183			// Open PIP (requires Picasso96)
184			static bool init_pip(int width, int height)
185			{
186			// Set absolute mouse mode
187			ADBSetRelMouseMode(false);
188
189			// Open window
190			ULONG error = 0;
191			the_win = p96PIP_OpenTags(
192			P96PIP_SourceFormat, RGBFB_R5G5B5,
193			P96PIP_SourceWidth, width,
194			P96PIP_SourceHeight, height,
195	cebix	1.2	P96PIP_ErrorCode, (ULONG)&error,
196	cebix	1.1	WA_Left, 0, WA_Top, 0,
197			WA_InnerWidth, width, WA_InnerHeight, height,
198			WA_SimpleRefresh, TRUE,
199			WA_NoCareRefresh, TRUE,
200			WA_Activate, TRUE,
201			WA_RMBTrap, TRUE,
202			WA_ReportMouse, TRUE,
203			WA_DragBar, TRUE,
204			WA_DepthGadget, TRUE,
205			WA_SizeGadget, FALSE,
206	cebix	1.2	WA_Title, (ULONG)GetString(STR_WINDOW_TITLE),
207			WA_PubScreenName, (ULONG)"Workbench",
208	cebix	1.1	TAG_END
209			);
210			if (the_win == NULL \|\| error) {
211			ErrorAlert(GetString(STR_OPEN_WINDOW_ERR));
212			return false;
213			}
214
215			// Find bitmap
216	cebix	1.2	p96PIP_GetTags(the_win, P96PIP_SourceBitMap, (ULONG)&the_bitmap, TAG_END);
217	cebix	1.1
218	cebix	1.13	// Add resolution and set VideoMonitor
219			set_video_monitor(width, height, p96GetBitMapAttr(the_bitmap, P96BMA_BYTESPERROW), 16);
220	cebix	1.1	VideoMonitor.mac_frame_base = p96GetBitMapAttr(the_bitmap, P96BMA_MEMORY);
221			return true;
222			}
223
224	cebix	1.6	// Open Picasso96 screen
225			static bool init_screen_p96(ULONG mode_id)
226	cebix	1.1	{
227			// Set relative mouse mode
228			ADBSetRelMouseMode(true);
229
230	cebix	1.6	// Check if the mode is one we can handle
231			uint32 depth = p96GetModeIDAttr(mode_id, P96IDA_DEPTH);
232			uint32 format = p96GetModeIDAttr(mode_id, P96IDA_RGBFORMAT);
233
234			switch (depth) {
235			case 8:
236			break;
237			case 15:
238			case 16:
239			if (format != RGBFB_R5G5B5) {
240			ErrorAlert(GetString(STR_WRONG_SCREEN_FORMAT_ERR));
241			return false;
242			}
243			break;
244			case 24:
245			case 32:
246			if (format != RGBFB_A8R8G8B8) {
247			ErrorAlert(GetString(STR_WRONG_SCREEN_FORMAT_ERR));
248			return false;
249			}
250			break;
251			default:
252			ErrorAlert(GetString(STR_WRONG_SCREEN_DEPTH_ERR));
253			return false;
254			}
255
256			// Yes, get width and height
257			uint32 width = p96GetModeIDAttr(mode_id, P96IDA_WIDTH);
258			uint32 height = p96GetModeIDAttr(mode_id, P96IDA_HEIGHT);
259
260			// Open screen
261			the_screen = p96OpenScreenTags(
262			P96SA_DisplayID, mode_id,
263			P96SA_Title, (ULONG)GetString(STR_WINDOW_TITLE),
264			P96SA_Quiet, TRUE,
265			P96SA_NoMemory, TRUE,
266			P96SA_NoSprite, TRUE,
267			P96SA_Exclusive, TRUE,
268			TAG_END
269			);
270			if (the_screen == NULL) {
271			ErrorAlert(GetString(STR_OPEN_SCREEN_ERR));
272	cebix	1.1	return false;
273			}
274
275	cebix	1.6	// Open window
276			the_win = OpenWindowTags(NULL,
277			WA_Left, 0, WA_Top, 0,
278			WA_Width, width, WA_Height, height,
279			WA_NoCareRefresh, TRUE,
280			WA_Borderless, TRUE,
281			WA_Activate, TRUE,
282			WA_RMBTrap, TRUE,
283			WA_ReportMouse, TRUE,
284			WA_CustomScreen, (ULONG)the_screen,
285			TAG_END
286			);
287			if (the_win == NULL) {
288			ErrorAlert(GetString(STR_OPEN_WINDOW_ERR));
289			return false;
290			}
291
292			ScreenToFront(the_screen);
293	cebix	1.13
294			// Add resolution and set VideoMonitor
295			set_video_monitor(width, height, p96GetBitMapAttr(the_screen->RastPort.BitMap, P96BMA_BYTESPERROW), depth);
296	cebix	1.6	VideoMonitor.mac_frame_base = p96GetBitMapAttr(the_screen->RastPort.BitMap, P96BMA_MEMORY);
297			return true;
298			}
299
300			// Open CyberGraphX screen
301			static bool init_screen_cgfx(ULONG mode_id)
302			{
303			// Set relative mouse mode
304			ADBSetRelMouseMode(true);
305	cebix	1.4
306	cebix	1.1	// Check if the mode is one we can handle
307	cebix	1.6	uint32 depth = GetCyberIDAttr(CYBRIDATTR_DEPTH, mode_id);
308			uint32 format = GetCyberIDAttr(CYBRIDATTR_PIXFMT, mode_id);
309	cebix	1.4
310	cebix	1.1	switch (depth) {
311			case 8:
312			break;
313			case 15:
314			case 16:
315	jlachmann	1.9	// !!! PIXFMT_RGB15 is correct !!!
316			if (format != PIXFMT_RGB15) {
317	cebix	1.1	ErrorAlert(GetString(STR_WRONG_SCREEN_FORMAT_ERR));
318			return false;
319			}
320			break;
321			case 24:
322			case 32:
323	cebix	1.6	if (format != PIXFMT_ARGB32) {
324	cebix	1.1	ErrorAlert(GetString(STR_WRONG_SCREEN_FORMAT_ERR));
325			return false;
326			}
327			break;
328			default:
329			ErrorAlert(GetString(STR_WRONG_SCREEN_DEPTH_ERR));
330			return false;
331			}
332
333			// Yes, get width and height
334	cebix	1.6	uint32 width = GetCyberIDAttr(CYBRIDATTR_WIDTH, mode_id);
335			uint32 height = GetCyberIDAttr(CYBRIDATTR_HEIGHT, mode_id);
336	cebix	1.4
337	cebix	1.1	// Open screen
338	cebix	1.6	the_screen = OpenScreenTags(NULL,
339			SA_DisplayID, mode_id,
340			SA_Title, (ULONG)GetString(STR_WINDOW_TITLE),
341			SA_Quiet, TRUE,
342			SA_Exclusive, TRUE,
343			TAG_END
344			);
345	cebix	1.1	if (the_screen == NULL) {
346			ErrorAlert(GetString(STR_OPEN_SCREEN_ERR));
347			return false;
348			}
349
350			// Open window
351			the_win = OpenWindowTags(NULL,
352			WA_Left, 0, WA_Top, 0,
353			WA_Width, width, WA_Height, height,
354			WA_NoCareRefresh, TRUE,
355			WA_Borderless, TRUE,
356			WA_Activate, TRUE,
357			WA_RMBTrap, TRUE,
358			WA_ReportMouse, TRUE,
359	cebix	1.2	WA_CustomScreen, (ULONG)the_screen,
360	cebix	1.1	TAG_END
361			);
362			if (the_win == NULL) {
363			ErrorAlert(GetString(STR_OPEN_WINDOW_ERR));
364			return false;
365			}
366
367			ScreenToFront(the_screen);
368	cebix	1.6	static UWORD ptr[] = { 0, 0, 0, 0 };
369			SetPointer(the_win, ptr, 0, 0, 0, 0); // Hide mouse pointer
370	cebix	1.13
371			// Set VideoMonitor
372			ULONG frame_base;
373	cebix	1.6	APTR handle = LockBitMapTags(the_screen->RastPort.BitMap,
374	cebix	1.13	LBMI_BASEADDRESS, (ULONG)&frame_base,
375			TAG_END
376			);
377	cebix	1.6	UnLockBitMap(handle);
378	cebix	1.13	set_video_monitor(width, height, GetCyberMapAttr(the_screen->RastPort.BitMap, CYBRMATTR_XMOD), depth);
379			VideoMonitor.mac_frame_base = frame_base;
380	cebix	1.1	return true;
381			}
382
383			bool VideoInit(bool classic)
384			{
385	cebix	1.8	// Allocate blank mouse pointer data
386			null_pointer = (UWORD *)AllocMem(12, MEMF_PUBLIC \| MEMF_CHIP \| MEMF_CLEAR);
387			if (null_pointer == NULL) {
388			ErrorAlert(GetString(STR_NO_MEM_ERR));
389			return false;
390			}
391
392	cebix	1.1	// Read frame skip prefs
393			frame_skip = PrefsFindInt32("frameskip");
394			if (frame_skip == 0)
395			frame_skip = 1;
396
397			// Get screen mode from preferences
398			const char *mode_str;
399			if (classic)
400			mode_str = "win/512/342";
401			else
402			mode_str = PrefsFindString("screen");
403
404			// Determine type and mode
405			display_type = DISPLAY_WINDOW;
406			int width = 512, height = 384;
407			ULONG mode_id = 0;
408			if (mode_str) {
409			if (sscanf(mode_str, "win/%d/%d", &width, &height) == 2)
410			display_type = DISPLAY_WINDOW;
411			else if (sscanf(mode_str, "pip/%d/%d", &width, &height) == 2 && P96Base)
412			display_type = DISPLAY_PIP;
413	cebix	1.6	else if (sscanf(mode_str, "scr/%08lx", &mode_id) == 1 && (CyberGfxBase \|\| P96Base)) {
414			if (P96Base && p96GetModeIDAttr(mode_id, P96IDA_ISP96))
415			display_type = DISPLAY_SCREEN_P96;
416			else if (CyberGfxBase && IsCyberModeID(mode_id))
417			display_type = DISPLAY_SCREEN_CGFX;
418			else {
419			ErrorAlert(GetString(STR_NO_P96_MODE_ERR));
420			return false;
421			}
422			}
423	cebix	1.1	}
424
425			// Open display
426			switch (display_type) {
427			case DISPLAY_WINDOW:
428			if (!init_window(width, height))
429			return false;
430			break;
431
432			case DISPLAY_PIP:
433			if (!init_pip(width, height))
434			return false;
435			break;
436
437	cebix	1.6	case DISPLAY_SCREEN_P96:
438			if (!init_screen_p96(mode_id))
439			return false;
440			break;
441
442			case DISPLAY_SCREEN_CGFX:
443			if (!init_screen_cgfx(mode_id))
444	cebix	1.1	return false;
445			break;
446			}
447
448			// Start periodic process
449			periodic_proc = CreateNewProcTags(
450	cebix	1.2	NP_Entry, (ULONG)periodic_func,
451			NP_Name, (ULONG)"Basilisk II IDCMP Handler",
452	cebix	1.1	NP_Priority, 0,
453			TAG_END
454			);
455			if (periodic_proc == NULL) {
456			ErrorAlert(GetString(STR_NO_MEM_ERR));
457			return false;
458			}
459			return true;
460			}
461
462
463			/*
464			* Deinitialization
465			*/
466
467			void VideoExit(void)
468			{
469			// Stop periodic process
470			if (periodic_proc) {
471			SetSignal(0, SIGF_SINGLE);
472			Signal(&periodic_proc->pr_Task, SIGBREAKF_CTRL_C);
473			Wait(SIGF_SINGLE);
474			}
475
476			switch (display_type) {
477
478			case DISPLAY_WINDOW:
479
480			// Window mode, free bitmap
481			if (the_bitmap) {
482			WaitBlit();
483			FreeBitMap(the_bitmap);
484			}
485
486			// Free pens and close window
487			if (the_win) {
488			ReleasePen(the_win->WScreen->ViewPort.ColorMap, black_pen);
489			ReleasePen(the_win->WScreen->ViewPort.ColorMap, white_pen);
490
491			CloseWindow(the_win);
492			}
493			break;
494
495			case DISPLAY_PIP:
496
497			// Close PIP
498			if (the_win)
499			p96PIP_Close(the_win);
500			break;
501
502	cebix	1.6	case DISPLAY_SCREEN_P96:
503	cebix	1.1
504			// Close window
505			if (the_win)
506			CloseWindow(the_win);
507
508			// Close screen
509	cebix	1.4	if (the_screen) {
510	cebix	1.6	p96CloseScreen(the_screen);
511			the_screen = NULL;
512			}
513			break;
514
515			case DISPLAY_SCREEN_CGFX:
516
517			// Close window
518			if (the_win)
519			CloseWindow(the_win);
520	cebix	1.4
521	cebix	1.6	// Close screen
522			if (the_screen) {
523			CloseScreen(the_screen);
524	cebix	1.4	the_screen = NULL;
525			}
526	cebix	1.1	break;
527			}
528	cebix	1.8
529			// Free mouse pointer
530			if (null_pointer) {
531			FreeMem(null_pointer, 12);
532			null_pointer = NULL;
533			}
534	cebix	1.1	}
535
536
537			/*
538			* Set palette
539			*/
540
541			void video_set_palette(uint8 *pal)
542			{
543	cebix	1.6	if (display_type == DISPLAY_SCREEN_P96 \|\| display_type == DISPLAY_SCREEN_CGFX) {
544	cebix	1.1
545			// Convert palette to 32 bits
546			ULONG table[2 + 256 * 3];
547			table[0] = 256 << 16;
548			table[256 * 3 + 1] = 0;
549			for (int i=0; i<256; i++) {
550			table[i3+1] = pal[i3] * 0x01010101;
551			table[i3+2] = pal[i3+1] * 0x01010101;
552			table[i3+3] = pal[i3+2] * 0x01010101;
553			}
554
555			// And load it
556			LoadRGB32(&the_screen->ViewPort, table);
557			}
558			}
559
560
561			/*
562	cebix	1.14	* Switch video mode
563			*/
564
565			void video_switch_to_mode(const video_mode &mode)
566			{
567			}
568
569
570			/*
571	cebix	1.1	* Video message handling (not neccessary under AmigaOS, handled by periodic_func())
572			*/
573
574			void VideoInterrupt(void)
575			{
576			}
577
578
579			/*
580			* Process for window refresh and message handling
581			*/
582
583			static __saveds void periodic_func(void)
584			{
585			struct MsgPort *timer_port = NULL;
586			struct timerequest *timer_io = NULL;
587			struct IntuiMessage *msg;
588			ULONG win_mask = 0, timer_mask = 0;
589
590			// Create message port for window and attach it
591			struct MsgPort *win_port = CreateMsgPort();
592			if (win_port) {
593			win_mask = 1 << win_port->mp_SigBit;
594			the_win->UserPort = win_port;
595	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));
596	cebix	1.1	}
597
598			// Start 60Hz timer for window refresh
599			if (display_type == DISPLAY_WINDOW) {
600			timer_port = CreateMsgPort();
601			if (timer_port) {
602			timer_io = (struct timerequest *)CreateIORequest(timer_port, sizeof(struct timerequest));
603			if (timer_io) {
604			if (!OpenDevice((UBYTE )TIMERNAME, UNIT_MICROHZ, (struct IORequest )timer_io, 0)) {
605			timer_mask = 1 << timer_port->mp_SigBit;
606			timer_io->tr_node.io_Command = TR_ADDREQUEST;
607			timer_io->tr_time.tv_secs = 0;
608			timer_io->tr_time.tv_micro = 16667 * frame_skip;
609			SendIO((struct IORequest *)timer_io);
610			}
611			}
612			}
613			}
614
615			// Main loop
616			for (;;) {
617
618			// Wait for timer and/or window (CTRL_C is used for quitting the task)
619			ULONG sig = Wait(win_mask \| timer_mask \| SIGBREAKF_CTRL_C);
620
621			if (sig & SIGBREAKF_CTRL_C)
622			break;
623
624			if (sig & timer_mask) {
625
626			// Timer tick, update display
627			BltTemplate(the_bitmap->Planes[0], 0, the_bitmap->BytesPerRow, the_win->RPort,
628	cebix	1.13	the_win->BorderLeft, the_win->BorderTop, VideoMonitor.mode.x, VideoMonitor.mode.y);
629	cebix	1.1
630			// Restart timer
631			timer_io->tr_node.io_Command = TR_ADDREQUEST;
632			timer_io->tr_time.tv_secs = 0;
633			timer_io->tr_time.tv_micro = 16667 * frame_skip;
634			SendIO((struct IORequest *)timer_io);
635			}
636
637			if (sig & win_mask) {
638
639			// Handle window messages
640			while (msg = (struct IntuiMessage *)GetMsg(win_port)) {
641
642			// Get data from message and reply
643			ULONG cl = msg->Class;
644			UWORD code = msg->Code;
645			UWORD qualifier = msg->Qualifier;
646			WORD mx = msg->MouseX;
647			WORD my = msg->MouseY;
648			ReplyMsg((struct Message *)msg);
649
650			// Handle message according to class
651			switch (cl) {
652			case IDCMP_MOUSEMOVE:
653	cebix	1.7	if (display_type == DISPLAY_SCREEN_P96 \|\| display_type == DISPLAY_SCREEN_CGFX)
654	cebix	1.1	ADBMouseMoved(mx, my);
655	cebix	1.8	else {
656	cebix	1.1	ADBMouseMoved(mx - the_win->BorderLeft, my - the_win->BorderTop);
657	cebix	1.8	if (mx < the_win->BorderLeft
658			\|\| my < the_win->BorderTop
659	cebix	1.13	\|\| mx >= the_win->BorderLeft + VideoMonitor.mode.x
660			\|\| my >= the_win->BorderTop + VideoMonitor.mode.y) {
661	cebix	1.8	if (current_pointer) {
662			ClearPointer(the_win);
663			current_pointer = NULL;
664			}
665			} else {
666			if (current_pointer != null_pointer) {
667			// Hide mouse pointer inside window
668			SetPointer(the_win, null_pointer, 1, 16, 0, 0);
669			current_pointer = null_pointer;
670			}
671			}
672			}
673	cebix	1.1	break;
674
675			case IDCMP_MOUSEBUTTONS:
676			if (code == SELECTDOWN)
677			ADBMouseDown(0);
678			else if (code == SELECTUP)
679			ADBMouseUp(0);
680			else if (code == MENUDOWN)
681			ADBMouseDown(1);
682			else if (code == MENUUP)
683			ADBMouseUp(1);
684			else if (code == MIDDLEDOWN)
685			ADBMouseDown(2);
686			else if (code == MIDDLEUP)
687			ADBMouseUp(2);
688			break;
689
690			case IDCMP_RAWKEY:
691			if (qualifier & IEQUALIFIER_REPEAT) // Keyboard repeat is done by MacOS
692			break;
693	cebix	1.11	if ((qualifier & (IEQUALIFIER_LALT \| IEQUALIFIER_LSHIFT \| IEQUALIFIER_CONTROL)) ==
694			(IEQUALIFIER_LALT \| IEQUALIFIER_LSHIFT \| IEQUALIFIER_CONTROL) && code == 0x5f) {
695	jlachmann	1.9	SetInterruptFlag(INTFLAG_NMI);
696			TriggerInterrupt();
697			break;
698	cebix	1.10	}
699	jlachmann	1.9
700	cebix	1.1	if (code & IECODE_UP_PREFIX)
701			ADBKeyUp(keycode2mac[code & 0x7f]);
702			else
703			ADBKeyDown(keycode2mac[code & 0x7f]);
704			break;
705			}
706			}
707			}
708			}
709
710			// Stop timer
711			if (timer_io) {
712			if (!CheckIO((struct IORequest *)timer_io))
713			AbortIO((struct IORequest *)timer_io);
714			WaitIO((struct IORequest *)timer_io);
715			CloseDevice((struct IORequest *)timer_io);
716			DeleteIORequest(timer_io);
717			}
718			if (timer_port)
719			DeleteMsgPort(timer_port);
720
721			// Remove port from window and delete it
722			Forbid();
723			msg = (struct IntuiMessage *)win_port->mp_MsgList.lh_Head;
724			struct Node *succ;
725			while (succ = msg->ExecMessage.mn_Node.ln_Succ) {
726			if (msg->IDCMPWindow == the_win) {
727			Remove((struct Node *)msg);
728			ReplyMsg((struct Message *)msg);
729			}
730			msg = (struct IntuiMessage *)succ;
731			}
732			the_win->UserPort = NULL;
733			ModifyIDCMP(the_win, 0);
734			Permit();
735			DeleteMsgPort(win_port);
736
737			// Main task asked for termination, send signal
738			Forbid();
739			Signal(MainTask, SIGF_SINGLE);
740			}