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:
                case 16:
                        mode.depth = VDEPTH_16BIT;
                        break;
                case 24:
                case 32:
                        mode.depth = VDEPTH_32BIT;
                        break;
        }

        VideoModes.push_back(mode);
        video_init_depth_list();
        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(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(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(STR_OPEN_WINDOW_ERR);
                return false;
        }

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

        // Add resolution and set VideoMonitor
        VideoMonitor.mac_frame_base = p96GetBitMapAttr(the_bitmap, P96BMA_MEMORY);
        set_video_monitor(width, height, p96GetBitMapAttr(the_bitmap, P96BMA_BYTESPERROW), 16);
        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(STR_WRONG_SCREEN_FORMAT_ERR);
                                return false;
                        }
                        break;
                case 24:
                case 32:
                        if (format != RGBFB_A8R8G8B8) {
                                ErrorAlert(STR_WRONG_SCREEN_FORMAT_ERR);
                                return false;
                        }
                        break;
                default:
                        ErrorAlert(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(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(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(STR_WRONG_SCREEN_FORMAT_ERR);
                                return false;
                        }
                        break;
                case 24:
                case 32:
                        if (format != PIXFMT_ARGB32) {
                                ErrorAlert(STR_WRONG_SCREEN_FORMAT_ERR);
                                return false;
                        }
                        break;
                default:
                        ErrorAlert(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(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(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(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(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(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, in num)
{
        if ((display_type == DISPLAY_SCREEN_P96 || display_type == DISPLAY_SCREEN_CGFX)
         && !IsDirectMode(VideoMonitor.mode)) {

                // Convert palette to 32 bits
                ULONG table[2 + 256 * 3];
                table[0] = num << 16;
                table[num * 3 + 1] = 0;
                for (int i=0; i<num; 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:	1.18
Committed:	2001-07-03T19:20:45Z (23 years, 5 months ago) by cebix
Branch:	MAIN
Changes since 1.17:	+1 -0 lines
Log Message:	- improved compatibility of multiple depth/resolution handling with versions of MacOS before 7.6: - Apple mode IDs are now allocated contiguously from 0x80 (the video_*.cpp module must call video_init_depth_list() after adding all modes) - if the video driver didn't receive a GetVideoParameters call, it patches ScrnBase and the main GDevice upon a video mode switch (otherwise MacOS will continue to use the old frame buffer base) - the rowBytes values in the video parameters slot resources are correct for all bit depths
#	Content
1	/*
2	* video_amiga.cpp - Video/graphics emulation, AmigaOS specific stuff
3	*
4	* Basilisk II (C) 1997-2001 Christian Bauer
5	*
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	#include <cybergraphics/cybergraphics.h>
26	#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	#include <proto/cybergraphics.h>
34
35	#include "sysdeps.h"
36	#include "cpu_emulation.h"
37	#include "main.h"
38	#include "adb.h"
39	#include "prefs.h"
40	#include "user_strings.h"
41	#include "video.h"
42
43	#define DEBUG 0
44	#include "debug.h"
45
46
47	// Display types
48	enum {
49	DISPLAY_WINDOW,
50	DISPLAY_PIP,
51	DISPLAY_SCREEN_P96,
52	DISPLAY_SCREEN_CGFX
53	};
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	static UWORD *null_pointer = NULL; // Blank mouse pointer data
62	static UWORD current_pointer = (UWORD )-1; // Currently visible mouse pointer data
63	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	// 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	case 16:
123	mode.depth = VDEPTH_16BIT;
124	break;
125	case 24:
126	case 32:
127	mode.depth = VDEPTH_32BIT;
128	break;
129	}
130
131	VideoModes.push_back(mode);
132	video_init_depth_list();
133	VideoMonitor.mode = mode;
134	}
135
136	// Open window
137	static bool init_window(int width, int height)
138	{
139	// Set absolute mouse mode
140	ADBSetRelMouseMode(false);
141
142	// Open window
143	the_win = OpenWindowTags(NULL,
144	WA_Left, 0, WA_Top, 0,
145	WA_InnerWidth, width, WA_InnerHeight, height,
146	WA_SimpleRefresh, TRUE,
147	WA_NoCareRefresh, TRUE,
148	WA_Activate, TRUE,
149	WA_RMBTrap, TRUE,
150	WA_ReportMouse, TRUE,
151	WA_DragBar, TRUE,
152	WA_DepthGadget, TRUE,
153	WA_SizeGadget, FALSE,
154	WA_Title, (ULONG)GetString(STR_WINDOW_TITLE),
155	TAG_END
156	);
157	if (the_win == NULL) {
158	ErrorAlert(STR_OPEN_WINDOW_ERR);
159	return false;
160	}
161
162	// Create bitmap ("height + 2" for safety)
163	the_bitmap = AllocBitMap(width, height + 2, 1, BMF_CLEAR, NULL);
164	if (the_bitmap == NULL) {
165	ErrorAlert(STR_NO_MEM_ERR);
166	return false;
167	}
168
169	// Add resolution and set VideoMonitor
170	set_video_monitor(width, height, the_bitmap->BytesPerRow, 1);
171	VideoMonitor.mac_frame_base = (uint32)the_bitmap->Planes[0];
172
173	// Set FgPen and BgPen
174	black_pen = ObtainBestPenA(the_win->WScreen->ViewPort.ColorMap, 0, 0, 0, NULL);
175	white_pen = ObtainBestPenA(the_win->WScreen->ViewPort.ColorMap, 0xffffffff, 0xffffffff, 0xffffffff, NULL);
176	SetAPen(the_win->RPort, black_pen);
177	SetBPen(the_win->RPort, white_pen);
178	SetDrMd(the_win->RPort, JAM2);
179	return true;
180	}
181
182	// Open PIP (requires Picasso96)
183	static bool init_pip(int width, int height)
184	{
185	// Set absolute mouse mode
186	ADBSetRelMouseMode(false);
187
188	// Open window
189	ULONG error = 0;
190	the_win = p96PIP_OpenTags(
191	P96PIP_SourceFormat, RGBFB_R5G5B5,
192	P96PIP_SourceWidth, width,
193	P96PIP_SourceHeight, height,
194	P96PIP_ErrorCode, (ULONG)&error,
195	WA_Left, 0, WA_Top, 0,
196	WA_InnerWidth, width, WA_InnerHeight, height,
197	WA_SimpleRefresh, TRUE,
198	WA_NoCareRefresh, TRUE,
199	WA_Activate, TRUE,
200	WA_RMBTrap, TRUE,
201	WA_ReportMouse, TRUE,
202	WA_DragBar, TRUE,
203	WA_DepthGadget, TRUE,
204	WA_SizeGadget, FALSE,
205	WA_Title, (ULONG)GetString(STR_WINDOW_TITLE),
206	WA_PubScreenName, (ULONG)"Workbench",
207	TAG_END
208	);
209	if (the_win == NULL \|\| error) {
210	ErrorAlert(STR_OPEN_WINDOW_ERR);
211	return false;
212	}
213
214	// Find bitmap
215	p96PIP_GetTags(the_win, P96PIP_SourceBitMap, (ULONG)&the_bitmap, TAG_END);
216
217	// Add resolution and set VideoMonitor
218	VideoMonitor.mac_frame_base = p96GetBitMapAttr(the_bitmap, P96BMA_MEMORY);
219	set_video_monitor(width, height, p96GetBitMapAttr(the_bitmap, P96BMA_BYTESPERROW), 16);
220	return true;
221	}
222
223	// Open Picasso96 screen
224	static bool init_screen_p96(ULONG mode_id)
225	{
226	// Set relative mouse mode
227	ADBSetRelMouseMode(true);
228
229	// Check if the mode is one we can handle
230	uint32 depth = p96GetModeIDAttr(mode_id, P96IDA_DEPTH);
231	uint32 format = p96GetModeIDAttr(mode_id, P96IDA_RGBFORMAT);
232
233	switch (depth) {
234	case 8:
235	break;
236	case 15:
237	case 16:
238	if (format != RGBFB_R5G5B5) {
239	ErrorAlert(STR_WRONG_SCREEN_FORMAT_ERR);
240	return false;
241	}
242	break;
243	case 24:
244	case 32:
245	if (format != RGBFB_A8R8G8B8) {
246	ErrorAlert(STR_WRONG_SCREEN_FORMAT_ERR);
247	return false;
248	}
249	break;
250	default:
251	ErrorAlert(STR_WRONG_SCREEN_DEPTH_ERR);
252	return false;
253	}
254
255	// Yes, get width and height
256	uint32 width = p96GetModeIDAttr(mode_id, P96IDA_WIDTH);
257	uint32 height = p96GetModeIDAttr(mode_id, P96IDA_HEIGHT);
258
259	// Open screen
260	the_screen = p96OpenScreenTags(
261	P96SA_DisplayID, mode_id,
262	P96SA_Title, (ULONG)GetString(STR_WINDOW_TITLE),
263	P96SA_Quiet, TRUE,
264	P96SA_NoMemory, TRUE,
265	P96SA_NoSprite, TRUE,
266	P96SA_Exclusive, TRUE,
267	TAG_END
268	);
269	if (the_screen == NULL) {
270	ErrorAlert(STR_OPEN_SCREEN_ERR);
271	return false;
272	}
273
274	// Open window
275	the_win = OpenWindowTags(NULL,
276	WA_Left, 0, WA_Top, 0,
277	WA_Width, width, WA_Height, height,
278	WA_NoCareRefresh, TRUE,
279	WA_Borderless, TRUE,
280	WA_Activate, TRUE,
281	WA_RMBTrap, TRUE,
282	WA_ReportMouse, TRUE,
283	WA_CustomScreen, (ULONG)the_screen,
284	TAG_END
285	);
286	if (the_win == NULL) {
287	ErrorAlert(STR_OPEN_WINDOW_ERR);
288	return false;
289	}
290
291	ScreenToFront(the_screen);
292
293	// Add resolution and set VideoMonitor
294	set_video_monitor(width, height, p96GetBitMapAttr(the_screen->RastPort.BitMap, P96BMA_BYTESPERROW), depth);
295	VideoMonitor.mac_frame_base = p96GetBitMapAttr(the_screen->RastPort.BitMap, P96BMA_MEMORY);
296	return true;
297	}
298
299	// Open CyberGraphX screen
300	static bool init_screen_cgfx(ULONG mode_id)
301	{
302	// Set relative mouse mode
303	ADBSetRelMouseMode(true);
304
305	// Check if the mode is one we can handle
306	uint32 depth = GetCyberIDAttr(CYBRIDATTR_DEPTH, mode_id);
307	uint32 format = GetCyberIDAttr(CYBRIDATTR_PIXFMT, mode_id);
308
309	switch (depth) {
310	case 8:
311	break;
312	case 15:
313	case 16:
314	// !!! PIXFMT_RGB15 is correct !!!
315	if (format != PIXFMT_RGB15) {
316	ErrorAlert(STR_WRONG_SCREEN_FORMAT_ERR);
317	return false;
318	}
319	break;
320	case 24:
321	case 32:
322	if (format != PIXFMT_ARGB32) {
323	ErrorAlert(STR_WRONG_SCREEN_FORMAT_ERR);
324	return false;
325	}
326	break;
327	default:
328	ErrorAlert(STR_WRONG_SCREEN_DEPTH_ERR);
329	return false;
330	}
331
332	// Yes, get width and height
333	uint32 width = GetCyberIDAttr(CYBRIDATTR_WIDTH, mode_id);
334	uint32 height = GetCyberIDAttr(CYBRIDATTR_HEIGHT, mode_id);
335
336	// Open screen
337	the_screen = OpenScreenTags(NULL,
338	SA_DisplayID, mode_id,
339	SA_Title, (ULONG)GetString(STR_WINDOW_TITLE),
340	SA_Quiet, TRUE,
341	SA_Exclusive, TRUE,
342	TAG_END
343	);
344	if (the_screen == NULL) {
345	ErrorAlert(STR_OPEN_SCREEN_ERR);
346	return false;
347	}
348
349	// Open window
350	the_win = OpenWindowTags(NULL,
351	WA_Left, 0, WA_Top, 0,
352	WA_Width, width, WA_Height, height,
353	WA_NoCareRefresh, TRUE,
354	WA_Borderless, TRUE,
355	WA_Activate, TRUE,
356	WA_RMBTrap, TRUE,
357	WA_ReportMouse, TRUE,
358	WA_CustomScreen, (ULONG)the_screen,
359	TAG_END
360	);
361	if (the_win == NULL) {
362	ErrorAlert(STR_OPEN_WINDOW_ERR);
363	return false;
364	}
365
366	ScreenToFront(the_screen);
367	static UWORD ptr[] = { 0, 0, 0, 0 };
368	SetPointer(the_win, ptr, 0, 0, 0, 0); // Hide mouse pointer
369
370	// Set VideoMonitor
371	ULONG frame_base;
372	APTR handle = LockBitMapTags(the_screen->RastPort.BitMap,
373	LBMI_BASEADDRESS, (ULONG)&frame_base,
374	TAG_END
375	);
376	UnLockBitMap(handle);
377	set_video_monitor(width, height, GetCyberMapAttr(the_screen->RastPort.BitMap, CYBRMATTR_XMOD), depth);
378	VideoMonitor.mac_frame_base = frame_base;
379	return true;
380	}
381
382	bool VideoInit(bool classic)
383	{
384	// Allocate blank mouse pointer data
385	null_pointer = (UWORD *)AllocMem(12, MEMF_PUBLIC \| MEMF_CHIP \| MEMF_CLEAR);
386	if (null_pointer == NULL) {
387	ErrorAlert(STR_NO_MEM_ERR);
388	return false;
389	}
390
391	// Read frame skip prefs
392	frame_skip = PrefsFindInt32("frameskip");
393	if (frame_skip == 0)
394	frame_skip = 1;
395
396	// Get screen mode from preferences
397	const char *mode_str;
398	if (classic)
399	mode_str = "win/512/342";
400	else
401	mode_str = PrefsFindString("screen");
402
403	// Determine type and mode
404	display_type = DISPLAY_WINDOW;
405	int width = 512, height = 384;
406	ULONG mode_id = 0;
407	if (mode_str) {
408	if (sscanf(mode_str, "win/%d/%d", &width, &height) == 2)
409	display_type = DISPLAY_WINDOW;
410	else if (sscanf(mode_str, "pip/%d/%d", &width, &height) == 2 && P96Base)
411	display_type = DISPLAY_PIP;
412	else if (sscanf(mode_str, "scr/%08lx", &mode_id) == 1 && (CyberGfxBase \|\| P96Base)) {
413	if (P96Base && p96GetModeIDAttr(mode_id, P96IDA_ISP96))
414	display_type = DISPLAY_SCREEN_P96;
415	else if (CyberGfxBase && IsCyberModeID(mode_id))
416	display_type = DISPLAY_SCREEN_CGFX;
417	else {
418	ErrorAlert(STR_NO_P96_MODE_ERR);
419	return false;
420	}
421	}
422	}
423
424	// Open display
425	switch (display_type) {
426	case DISPLAY_WINDOW:
427	if (!init_window(width, height))
428	return false;
429	break;
430
431	case DISPLAY_PIP:
432	if (!init_pip(width, height))
433	return false;
434	break;
435
436	case DISPLAY_SCREEN_P96:
437	if (!init_screen_p96(mode_id))
438	return false;
439	break;
440
441	case DISPLAY_SCREEN_CGFX:
442	if (!init_screen_cgfx(mode_id))
443	return false;
444	break;
445	}
446
447	// Start periodic process
448	periodic_proc = CreateNewProcTags(
449	NP_Entry, (ULONG)periodic_func,
450	NP_Name, (ULONG)"Basilisk II IDCMP Handler",
451	NP_Priority, 0,
452	TAG_END
453	);
454	if (periodic_proc == NULL) {
455	ErrorAlert(STR_NO_MEM_ERR);
456	return false;
457	}
458	return true;
459	}
460
461
462	/*
463	* Deinitialization
464	*/
465
466	void VideoExit(void)
467	{
468	// Stop periodic process
469	if (periodic_proc) {
470	SetSignal(0, SIGF_SINGLE);
471	Signal(&periodic_proc->pr_Task, SIGBREAKF_CTRL_C);
472	Wait(SIGF_SINGLE);
473	}
474
475	switch (display_type) {
476
477	case DISPLAY_WINDOW:
478
479	// Window mode, free bitmap
480	if (the_bitmap) {
481	WaitBlit();
482	FreeBitMap(the_bitmap);
483	}
484
485	// Free pens and close window
486	if (the_win) {
487	ReleasePen(the_win->WScreen->ViewPort.ColorMap, black_pen);
488	ReleasePen(the_win->WScreen->ViewPort.ColorMap, white_pen);
489
490	CloseWindow(the_win);
491	}
492	break;
493
494	case DISPLAY_PIP:
495
496	// Close PIP
497	if (the_win)
498	p96PIP_Close(the_win);
499	break;
500
501	case DISPLAY_SCREEN_P96:
502
503	// Close window
504	if (the_win)
505	CloseWindow(the_win);
506
507	// Close screen
508	if (the_screen) {
509	p96CloseScreen(the_screen);
510	the_screen = NULL;
511	}
512	break;
513
514	case DISPLAY_SCREEN_CGFX:
515
516	// Close window
517	if (the_win)
518	CloseWindow(the_win);
519
520	// Close screen
521	if (the_screen) {
522	CloseScreen(the_screen);
523	the_screen = NULL;
524	}
525	break;
526	}
527
528	// Free mouse pointer
529	if (null_pointer) {
530	FreeMem(null_pointer, 12);
531	null_pointer = NULL;
532	}
533	}
534
535
536	/*
537	* Set palette
538	*/
539
540	void video_set_palette(uint8 *pal, in num)
541	{
542	if ((display_type == DISPLAY_SCREEN_P96 \|\| display_type == DISPLAY_SCREEN_CGFX)
543	&& !IsDirectMode(VideoMonitor.mode)) {
544
545	// Convert palette to 32 bits
546	ULONG table[2 + 256 * 3];
547	table[0] = num << 16;
548	table[num * 3 + 1] = 0;
549	for (int i=0; i<num; 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	* Switch video mode
563	*/
564
565	void video_switch_to_mode(const video_mode &mode)
566	{
567	}
568
569
570	/*
571	* 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	ModifyIDCMP(the_win, IDCMP_MOUSEBUTTONS \| IDCMP_MOUSEMOVE \| IDCMP_RAWKEY \| ((display_type == DISPLAY_SCREEN_P96 \|\| display_type == DISPLAY_SCREEN_CGFX) ? IDCMP_DELTAMOVE : 0));
596	}
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	the_win->BorderLeft, the_win->BorderTop, VideoMonitor.mode.x, VideoMonitor.mode.y);
629
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	if (display_type == DISPLAY_SCREEN_P96 \|\| display_type == DISPLAY_SCREEN_CGFX)
654	ADBMouseMoved(mx, my);
655	else {
656	ADBMouseMoved(mx - the_win->BorderLeft, my - the_win->BorderTop);
657	if (mx < the_win->BorderLeft
658	\|\| my < the_win->BorderTop
659	\|\| mx >= the_win->BorderLeft + VideoMonitor.mode.x
660	\|\| my >= the_win->BorderTop + VideoMonitor.mode.y) {
661	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	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	if ((qualifier & (IEQUALIFIER_LALT \| IEQUALIFIER_LSHIFT \| IEQUALIFIER_CONTROL)) ==
694	(IEQUALIFIER_LALT \| IEQUALIFIER_LSHIFT \| IEQUALIFIER_CONTROL) && code == 0x5f) {
695	SetInterruptFlag(INTFLAG_NMI);
696	TriggerInterrupt();
697	break;
698	}
699
700	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	}