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dosbox-wii/src/ints/mouse.cpp

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DOSBox for Windows, as of 3 May 2009, from the DOSBox CVS on SourceForge. Version 0.72 + many CVS changes, probably close to 0.73 release.
2009-05-02 22:30:39 +02:00
/*
* Copyright (C) 2002-2009 The DOSBox Team
*
* 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.
*/
/* $Id: mouse.cpp,v 1.79 2009/04/16 12:11:45 qbix79 Exp $ */
#include <string.h>
#include <math.h>
#include "dosbox.h"
#include "callback.h"
#include "mem.h"
#include "regs.h"
#include "cpu.h"
#include "mouse.h"
#include "pic.h"
#include "inout.h"
#include "int10.h"
#include "bios.h"
#include "dos_inc.h"
static Bitu call_int33,call_int74,int74_ret_callback,call_mouse_bd;
static Bit16u ps2cbseg,ps2cbofs;
static bool useps2callback,ps2callbackinit;
static Bitu call_ps2;
static RealPt ps2_callback;
static Bit16s oldmouseX, oldmouseY;
// forward
void WriteMouseIntVector(void);
struct button_event {
Bit8u type;
Bit8u buttons;
};
#define QUEUE_SIZE 32
#define MOUSE_BUTTONS 3
#define MOUSE_IRQ 12
#define POS_X (Bit16s)(mouse.x)
#define POS_Y (Bit16s)(mouse.y)
#define CURSORX 16
#define CURSORY 16
#define HIGHESTBIT (1<<(CURSORX-1))
static Bit16u defaultTextAndMask = 0x77FF;
static Bit16u defaultTextXorMask = 0x7700;
static Bit16u defaultScreenMask[CURSORY] = {
0x3FFF, 0x1FFF, 0x0FFF, 0x07FF,
0x03FF, 0x01FF, 0x00FF, 0x007F,
0x003F, 0x001F, 0x01FF, 0x00FF,
0x30FF, 0xF87F, 0xF87F, 0xFCFF
};
static Bit16u defaultCursorMask[CURSORY] = {
0x0000, 0x4000, 0x6000, 0x7000,
0x7800, 0x7C00, 0x7E00, 0x7F00,
0x7F80, 0x7C00, 0x6C00, 0x4600,
0x0600, 0x0300, 0x0300, 0x0000
};
static Bit16u userdefScreenMask[CURSORY];
static Bit16u userdefCursorMask[CURSORY];
static struct {
Bit8u buttons;
Bit16u times_pressed[MOUSE_BUTTONS];
Bit16u times_released[MOUSE_BUTTONS];
Bit16u last_released_x[MOUSE_BUTTONS];
Bit16u last_released_y[MOUSE_BUTTONS];
Bit16u last_pressed_x[MOUSE_BUTTONS];
Bit16u last_pressed_y[MOUSE_BUTTONS];
Bit16u hidden;
float add_x,add_y;
Bit16s min_x,max_x,min_y,max_y;
float mickey_x,mickey_y;
float x,y;
button_event event_queue[QUEUE_SIZE];
Bit8u events;//Increase if QUEUE_SIZE >255 (currently 32)
Bit16u sub_seg,sub_ofs;
Bit16u sub_mask;
bool background;
Bit16s backposx, backposy;
Bit8u backData[CURSORX*CURSORY];
Bit16u* screenMask;
Bit16u* cursorMask;
Bit16s clipx,clipy;
Bit16s hotx,hoty;
Bit16u textAndMask, textXorMask;
float mickeysPerPixel_x;
float mickeysPerPixel_y;
float pixelPerMickey_x;
float pixelPerMickey_y;
Bit16u senv_x_val;
Bit16u senv_y_val;
Bit16u dspeed_val;
float senv_x;
float senv_y;
Bit16u updateRegion_x[2];
Bit16u updateRegion_y[2];
Bit16u doubleSpeedThreshold;
Bit16u language;
Bit16u cursorType;
Bit16u oldhidden;
Bit8u page;
bool enabled;
bool inhibit_draw;
bool timer_in_progress;
bool in_UIR;
Bit8u mode;
} mouse;
bool Mouse_SetPS2State(bool use) {
if (use && (!ps2callbackinit)) {
useps2callback = false;
PIC_SetIRQMask(MOUSE_IRQ,true);
return false;
}
useps2callback = use;
Mouse_AutoLock(useps2callback);
PIC_SetIRQMask(MOUSE_IRQ,!useps2callback);
return true;
}
void Mouse_ChangePS2Callback(Bit16u pseg, Bit16u pofs) {
if ((pseg==0) && (pofs==0)) {
ps2callbackinit = false;
Mouse_AutoLock(false);
} else {
ps2callbackinit = true;
ps2cbseg = pseg;
ps2cbofs = pofs;
}
Mouse_AutoLock(ps2callbackinit);
}
void DoPS2Callback(Bit16u data, Bit16s mouseX, Bit16s mouseY) {
if (useps2callback) {
Bit16u mdat = (data & 0x03) | 0x08;
Bit16s xdiff = mouseX-oldmouseX;
Bit16s ydiff = oldmouseY-mouseY;
oldmouseX = mouseX;
oldmouseY = mouseY;
if ((xdiff>0xff) || (xdiff<-0xff)) mdat |= 0x40; // x overflow
if ((ydiff>0xff) || (ydiff<-0xff)) mdat |= 0x80; // y overflow
xdiff %= 256;
ydiff %= 256;
if (xdiff<0) {
xdiff = (0x100+xdiff);
mdat |= 0x10;
}
if (ydiff<0) {
ydiff = (0x100+ydiff);
mdat |= 0x20;
}
CPU_Push16((Bit16u)mdat);
CPU_Push16((Bit16u)(xdiff % 256));
CPU_Push16((Bit16u)(ydiff % 256));
CPU_Push16((Bit16u)0);
CPU_Push16(RealSeg(ps2_callback));
CPU_Push16(RealOff(ps2_callback));
SegSet16(cs, ps2cbseg);
reg_ip = ps2cbofs;
}
}
Bitu PS2_Handler(void) {
CPU_Pop16();CPU_Pop16();CPU_Pop16();CPU_Pop16();// remove the 4 words
return CBRET_NONE;
}
#define X_MICKEY 8
#define Y_MICKEY 8
#define MOUSE_HAS_MOVED 1
#define MOUSE_LEFT_PRESSED 2
#define MOUSE_LEFT_RELEASED 4
#define MOUSE_RIGHT_PRESSED 8
#define MOUSE_RIGHT_RELEASED 16
#define MOUSE_MIDDLE_PRESSED 32
#define MOUSE_MIDDLE_RELEASED 64
#define MOUSE_DELAY 5.0
void MOUSE_Limit_Events(Bitu /*val*/) {
mouse.timer_in_progress = false;
if (mouse.events) {
mouse.timer_in_progress = true;
PIC_AddEvent(MOUSE_Limit_Events,MOUSE_DELAY);
PIC_ActivateIRQ(MOUSE_IRQ);
}
}
INLINE void Mouse_AddEvent(Bit8u type) {
if (mouse.events<QUEUE_SIZE) {
if (mouse.events>0) {
/* Skip duplicate events */
if (type==MOUSE_HAS_MOVED) return;
/* Always put the newest element in the front as that the events are
* handled backwards (prevents doubleclicks while moving)
*/
for(Bitu i = mouse.events ; i ; i--)
mouse.event_queue[i] = mouse.event_queue[i-1];
}
mouse.event_queue[0].type=type;
mouse.event_queue[0].buttons=mouse.buttons;
mouse.events++;
}
if (!mouse.timer_in_progress) {
mouse.timer_in_progress = true;
PIC_AddEvent(MOUSE_Limit_Events,MOUSE_DELAY);
PIC_ActivateIRQ(MOUSE_IRQ);
}
}
// ***************************************************************************
// Mouse cursor - text mode
// ***************************************************************************
/* Write and read directly to the screen. Do no use int_setcursorpos (LOTUS123) */
extern void WriteChar(Bit16u col,Bit16u row,Bit8u page,Bit8u chr,Bit8u attr,bool useattr);
extern void ReadCharAttr(Bit16u col,Bit16u row,Bit8u page,Bit16u * result);
void RestoreCursorBackgroundText() {
if (mouse.hidden || mouse.inhibit_draw) return;
if (mouse.background) {
WriteChar(mouse.backposx,mouse.backposy,real_readb(BIOSMEM_SEG,BIOSMEM_CURRENT_PAGE),mouse.backData[0],mouse.backData[1],true);
mouse.background = false;
}
}
void DrawCursorText() {
// Restore Background
RestoreCursorBackgroundText();
// Save Background
mouse.backposx = POS_X>>3;
mouse.backposy = POS_Y>>3;
//use current page (CV program)
Bit8u page = real_readb(BIOSMEM_SEG,BIOSMEM_CURRENT_PAGE);
Bit16u result;
ReadCharAttr(mouse.backposx,mouse.backposy,page,&result);
mouse.backData[0] = (Bit8u)(result & 0xFF);
mouse.backData[1] = (Bit8u)(result>>8);
mouse.background = true;
// Write Cursor
result = (result & mouse.textAndMask) ^ mouse.textXorMask;
WriteChar(mouse.backposx,mouse.backposy,page,(Bit8u)(result&0xFF),(Bit8u)(result>>8),true);
}
// ***************************************************************************
// Mouse cursor - graphic mode
// ***************************************************************************
static Bit8u gfxReg3CE[9];
static Bit8u index3C4,gfxReg3C5;
void SaveVgaRegisters() {
if (IS_VGA_ARCH) {
for (Bit8u i=0; i<9; i++) {
IO_Write (0x3CE,i);
gfxReg3CE[i] = IO_Read(0x3CF);
}
/* Setup some default values in GFX regs that should work */
IO_Write(0x3CE,3); IO_Write(0x3Cf,0); //disable rotate and operation
IO_Write(0x3CE,5); IO_Write(0x3Cf,gfxReg3CE[5]&0xf0); //Force read/write mode 0
//Set Map to all planes. Celtic Tales
index3C4 = IO_Read(0x3c4); IO_Write(0x3C4,2);
gfxReg3C5 = IO_Read(0x3C5); IO_Write(0x3C5,0xF);
} else if (machine==MCH_EGA) {
//Set Map to all planes.
IO_Write(0x3C4,2);
IO_Write(0x3C5,0xF);
}
}
void RestoreVgaRegisters() {
if (IS_VGA_ARCH) {
for (Bit8u i=0; i<9; i++) {
IO_Write(0x3CE,i);
IO_Write(0x3CF,gfxReg3CE[i]);
}
IO_Write(0x3C4,2);
IO_Write(0x3C5,gfxReg3C5);
IO_Write(0x3C4,index3C4);
}
}
void ClipCursorArea(Bit16s& x1, Bit16s& x2, Bit16s& y1, Bit16s& y2,
Bit16u& addx1, Bit16u& addx2, Bit16u& addy) {
addx1 = addx2 = addy = 0;
// Clip up
if (y1<0) {
addy += (-y1);
y1 = 0;
}
// Clip down
if (y2>mouse.clipy) {
y2 = mouse.clipy;
};
// Clip left
if (x1<0) {
addx1 += (-x1);
x1 = 0;
};
// Clip right
if (x2>mouse.clipx) {
addx2 = x2 - mouse.clipx;
x2 = mouse.clipx;
};
}
void RestoreCursorBackground() {
if (mouse.hidden || mouse.inhibit_draw) return;
SaveVgaRegisters();
if (mouse.background) {
// Restore background
Bit16s x,y;
Bit16u addx1,addx2,addy;
Bit16u dataPos = 0;
Bit16s x1 = mouse.backposx;
Bit16s y1 = mouse.backposy;
Bit16s x2 = x1 + CURSORX - 1;
Bit16s y2 = y1 + CURSORY - 1;
ClipCursorArea(x1, x2, y1, y2, addx1, addx2, addy);
dataPos = addy * CURSORX;
for (y=y1; y<=y2; y++) {
dataPos += addx1;
for (x=x1; x<=x2; x++) {
INT10_PutPixel(x,y,mouse.page,mouse.backData[dataPos++]);
};
dataPos += addx2;
};
mouse.background = false;
};
RestoreVgaRegisters();
}
void DrawCursor() {
if (mouse.hidden || mouse.inhibit_draw) return;
// In Textmode ?
if (CurMode->type==M_TEXT) {
DrawCursorText();
return;
}
// Check video page. Seems to be ignored for text mode.
// hence the text mode handled above this
if (real_readb(BIOSMEM_SEG,BIOSMEM_CURRENT_PAGE)!=mouse.page) return;
// Check if cursor in update region
/* if ((POS_X >= mouse.updateRegion_x[0]) && (POS_X <= mouse.updateRegion_x[1]) &&
(POS_Y >= mouse.updateRegion_y[0]) && (POS_Y <= mouse.updateRegion_y[1])) {
if (CurMode->type==M_TEXT16)
RestoreCursorBackgroundText();
else
RestoreCursorBackground();
mouse.shown--;
return;
}
*/ /*Not sure yet what to do update region should be set to ??? */
// Get Clipping ranges
mouse.clipx = (Bit16s)((Bits)CurMode->swidth-1); /* Get from bios ? */
mouse.clipy = (Bit16s)((Bits)CurMode->sheight-1);
/* might be vidmode == 0x13?2:1 */
Bit16s xratio = 640;
if (CurMode->swidth>0) xratio/=CurMode->swidth;
if (xratio==0) xratio = 1;
RestoreCursorBackground();
SaveVgaRegisters();
// Save Background
Bit16s x,y;
Bit16u addx1,addx2,addy;
Bit16u dataPos = 0;
Bit16s x1 = POS_X / xratio - mouse.hotx;
Bit16s y1 = POS_Y - mouse.hoty;
Bit16s x2 = x1 + CURSORX - 1;
Bit16s y2 = y1 + CURSORY - 1;
ClipCursorArea(x1,x2,y1,y2, addx1, addx2, addy);
dataPos = addy * CURSORX;
for (y=y1; y<=y2; y++) {
dataPos += addx1;
for (x=x1; x<=x2; x++) {
INT10_GetPixel(x,y,mouse.page,&mouse.backData[dataPos++]);
};
dataPos += addx2;
};
mouse.background= true;
mouse.backposx = POS_X / xratio - mouse.hotx;
mouse.backposy = POS_Y - mouse.hoty;
// Draw Mousecursor
dataPos = addy * CURSORX;
for (y=y1; y<=y2; y++) {
Bit16u scMask = mouse.screenMask[addy+y-y1];
Bit16u cuMask = mouse.cursorMask[addy+y-y1];
if (addx1>0) { scMask<<=addx1; cuMask<<=addx1; dataPos += addx1; };
for (x=x1; x<=x2; x++) {
Bit8u pixel = 0;
// ScreenMask
if (scMask & HIGHESTBIT) pixel = mouse.backData[dataPos];
scMask<<=1;
// CursorMask
if (cuMask & HIGHESTBIT) pixel = pixel ^ 0x0F;
cuMask<<=1;
// Set Pixel
INT10_PutPixel(x,y,mouse.page,pixel);
dataPos++;
};
dataPos += addx2;
};
RestoreVgaRegisters();
}
void Mouse_CursorMoved(float xrel,float yrel,float x,float y,bool emulate) {
float dx = xrel * mouse.pixelPerMickey_x;
float dy = yrel * mouse.pixelPerMickey_y;
if((fabs(xrel) > 1.0) || (mouse.senv_x < 1.0)) dx *= mouse.senv_x;
if((fabs(yrel) > 1.0) || (mouse.senv_y < 1.0)) dy *= mouse.senv_y;
if (useps2callback) dy *= 2;
mouse.mickey_x += dx;
mouse.mickey_y += dy;
if (emulate) {
mouse.x += dx;
mouse.y += dy;
} else {
if (CurMode->type == M_TEXT) {
mouse.x = x*CurMode->swidth;
mouse.y = y*CurMode->sheight * 8 / CurMode->cheight;
} else if ((mouse.max_x < 2048) || (mouse.max_y < 2048) || (mouse.max_x != mouse.max_y)) {
if ((mouse.max_x > 0) && (mouse.max_y > 0)) {
mouse.x = x*mouse.max_x;
mouse.y = y*mouse.max_y;
} else {
mouse.x += xrel;
mouse.y += yrel;
}
} else { // Games faking relative movement through absolute coordinates. Quite surprising that this actually works..
mouse.x += xrel;
mouse.y += yrel;
}
}
/* ignore constraints if using PS2 mouse callback in the bios */
if (!useps2callback) {
if (mouse.x > mouse.max_x) mouse.x = mouse.max_x;
if (mouse.x < mouse.min_x) mouse.x = mouse.min_x;
if (mouse.y > mouse.max_y) mouse.y = mouse.max_y;
if (mouse.y < mouse.min_y) mouse.y = mouse.min_y;
}
Mouse_AddEvent(MOUSE_HAS_MOVED);
DrawCursor();
}
void Mouse_CursorSet(float x,float y) {
mouse.x=x;
mouse.y=y;
DrawCursor();
}
void Mouse_ButtonPressed(Bit8u button) {
switch (button) {
case 0:
mouse.buttons|=1;
Mouse_AddEvent(MOUSE_LEFT_PRESSED);
break;
case 1:
mouse.buttons|=2;
Mouse_AddEvent(MOUSE_RIGHT_PRESSED);
break;
case 2:
mouse.buttons|=4;
Mouse_AddEvent(MOUSE_MIDDLE_PRESSED);
break;
}
mouse.times_pressed[button]++;
mouse.last_pressed_x[button]=POS_X;
mouse.last_pressed_y[button]=POS_Y;
}
void Mouse_ButtonReleased(Bit8u button) {
switch (button) {
case 0:
mouse.buttons&=~1;
Mouse_AddEvent(MOUSE_LEFT_RELEASED);
break;
case 1:
mouse.buttons&=~2;
Mouse_AddEvent(MOUSE_RIGHT_RELEASED);
break;
case 2:
mouse.buttons&=~4;
Mouse_AddEvent(MOUSE_MIDDLE_RELEASED);
break;
}
mouse.times_released[button]++;
mouse.last_released_x[button]=POS_X;
mouse.last_released_y[button]=POS_Y;
}
static void Mouse_SetMickeyPixelRate(Bit16s px, Bit16s py){
if ((px!=0) && (py!=0)) {
mouse.mickeysPerPixel_x = (float)px/X_MICKEY;
mouse.mickeysPerPixel_y = (float)py/Y_MICKEY;
mouse.pixelPerMickey_x = X_MICKEY/(float)px;
mouse.pixelPerMickey_y = Y_MICKEY/(float)py;
}
}
static void Mouse_SetSensitivity(Bit16u px, Bit16u py, Bit16u dspeed){
if(px>100) px=100;
if(py>100) py=100;
if(dspeed>100) dspeed=100;
// save values
mouse.senv_x_val=px;
mouse.senv_y_val=py;
mouse.dspeed_val=dspeed;
if ((px!=0) && (py!=0)) {
px--; //Inspired by cutemouse
py--; //Although their cursor update routine is far more complex then ours
mouse.senv_x=(static_cast<float>(px)*px)/3600.0f +1.0f/3.0f;
mouse.senv_y=(static_cast<float>(py)*py)/3600.0f +1.0f/3.0f;
}
}
static void Mouse_ResetHardware(void){
PIC_SetIRQMask(MOUSE_IRQ,false);
}
//Does way to much. Many things should be moved to mouse reset one day
void Mouse_NewVideoMode(void) {
mouse.inhibit_draw=false;
/* Get the correct resolution from the current video mode */
Bit8u mode=mem_readb(BIOS_VIDEO_MODE);
if(mode == mouse.mode) {LOG(LOG_MOUSE,LOG_NORMAL)("New video is the same as the old"); /*return;*/}
switch (mode) {
case 0x00:
case 0x01:
case 0x02:
case 0x03: {
Bitu rows=real_readb(BIOSMEM_SEG,BIOSMEM_NB_ROWS);
if ((rows==0) || (rows>250)) rows=25-1;
mouse.max_y=8*(rows+1)-1;
break;
}
case 0x04:
case 0x05:
case 0x06:
case 0x07:
case 0x08:
case 0x09:
case 0x0a:
case 0x0d:
case 0x0e:
case 0x13:
mouse.max_y=199;
break;
case 0x0f:
case 0x10:
mouse.max_y=349;
break;
case 0x11:
case 0x12:
mouse.max_y=479;
break;
default:
LOG(LOG_MOUSE,LOG_ERROR)("Unhandled videomode %X on reset",mode);
mouse.inhibit_draw=true;
return;
}
mouse.mode = mode;
mouse.hidden = 1;
mouse.max_x = 639;
mouse.min_x = 0;
mouse.min_y = 0;
mouse.events = 0;
mouse.timer_in_progress = false;
PIC_RemoveEvents(MOUSE_Limit_Events);
mouse.hotx = 0;
mouse.hoty = 0;
mouse.background = false;
mouse.screenMask = defaultScreenMask;
mouse.cursorMask = defaultCursorMask;
mouse.textAndMask= defaultTextAndMask;
mouse.textXorMask= defaultTextXorMask;
mouse.language = 0;
mouse.page = 0;
mouse.doubleSpeedThreshold = 64;
mouse.updateRegion_x[0] = 1;
mouse.updateRegion_y[0] = 1;
mouse.updateRegion_x[1] = 1;
mouse.updateRegion_y[1] = 1;
mouse.cursorType = 0;
mouse.enabled=true;
mouse.oldhidden=1;
oldmouseX = static_cast<Bit16s>(mouse.x);
oldmouseY = static_cast<Bit16s>(mouse.y);
}
//Much too empty, Mouse_NewVideoMode contains stuff that should be in here
static void Mouse_Reset(void) {
/* Remove drawn mouse Legends of Valor */
if (CurMode->type!=M_TEXT) RestoreCursorBackground();
else RestoreCursorBackgroundText();
mouse.hidden = 1;
Mouse_NewVideoMode();
Mouse_SetMickeyPixelRate(8,16);
mouse.mickey_x = 0;
mouse.mickey_y = 0;
// Dont set max coordinates here. it is done by SetResolution!
mouse.x = static_cast<float>((mouse.max_x + 1)/ 2);
mouse.y = static_cast<float>((mouse.max_y + 1)/ 2);
mouse.sub_mask = 0;
mouse.in_UIR = false;
}
static Bitu INT33_Handler(void) {
// LOG(LOG_MOUSE,LOG_NORMAL)("MOUSE: %04X %X %X %d %d",reg_ax,reg_bx,reg_cx,POS_X,POS_Y);
switch (reg_ax) {
case 0x00: /* Reset Driver and Read Status */
Mouse_ResetHardware(); /* fallthrough */
case 0x21: /* Software Reset */
reg_ax=0xffff;
reg_bx=MOUSE_BUTTONS;
Mouse_Reset();
Mouse_AutoLock(true);
break;
case 0x01: /* Show Mouse */
if(mouse.hidden) mouse.hidden--;
Mouse_AutoLock(true);
DrawCursor();
break;
case 0x02: /* Hide Mouse */
{
if (CurMode->type!=M_TEXT) RestoreCursorBackground();
else RestoreCursorBackgroundText();
mouse.hidden++;
}
break;
case 0x03: /* Return position and Button Status */
reg_bx=mouse.buttons;
reg_cx=POS_X;
reg_dx=POS_Y;
break;
case 0x04: /* Position Mouse */
/* If position isn't different from current position
* don't change it then. (as position is rounded so numbers get
* lost when the rounded number is set) (arena/simulation Wolf) */
if ((Bit16s)reg_cx >= mouse.max_x) mouse.x = static_cast<float>(mouse.max_x);
else if (mouse.min_x >= (Bit16s)reg_cx) mouse.x = static_cast<float>(mouse.min_x);
else if ((Bit16s)reg_cx != POS_X) mouse.x = static_cast<float>(reg_cx);
if ((Bit16s)reg_dx >= mouse.max_y) mouse.y = static_cast<float>(mouse.max_y);
else if (mouse.min_y >= (Bit16s)reg_dx) mouse.y = static_cast<float>(mouse.min_y);
else if ((Bit16s)reg_dx != POS_Y) mouse.y = static_cast<float>(reg_dx);
DrawCursor();
break;
case 0x05: /* Return Button Press Data */
{
Bit16u but=reg_bx;
reg_ax=mouse.buttons;
if (but>=MOUSE_BUTTONS) but = MOUSE_BUTTONS - 1;
reg_cx=mouse.last_pressed_x[but];
reg_dx=mouse.last_pressed_y[but];
reg_bx=mouse.times_pressed[but];
mouse.times_pressed[but]=0;
break;
}
case 0x06: /* Return Button Release Data */
{
Bit16u but=reg_bx;
reg_ax=mouse.buttons;
if (but>=MOUSE_BUTTONS) but = MOUSE_BUTTONS - 1;
reg_cx=mouse.last_released_x[but];
reg_dx=mouse.last_released_y[but];
reg_bx=mouse.times_released[but];
mouse.times_released[but]=0;
break;
}
case 0x07: /* Define horizontal cursor range */
{ //lemmings set 1-640 and wants that. iron seeds set 0-640 but doesn't like 640
//Iron seed works if newvideo mode with mode 13 sets 0-639
//Larry 6 actually wants newvideo mode with mode 13 to set it to 0-319
Bit16s max,min;
if ((Bit16s)reg_cx<(Bit16s)reg_dx) { min=(Bit16s)reg_cx;max=(Bit16s)reg_dx;}
else { min=(Bit16s)reg_dx;max=(Bit16s)reg_cx;}
mouse.min_x=min;
mouse.max_x=max;
/* Battlechess wants this */
if(mouse.x > mouse.max_x) mouse.x = mouse.max_x;
if(mouse.x < mouse.min_x) mouse.x = mouse.min_x;
/* Or alternatively this:
mouse.x = (mouse.max_x - mouse.min_x + 1)/2;*/
LOG(LOG_MOUSE,LOG_NORMAL)("Define Hortizontal range min:%d max:%d",min,max);
}
break;
case 0x08: /* Define vertical cursor range */
{ // not sure what to take instead of the CurMode (see case 0x07 as well)
// especially the cases where sheight= 400 and we set it with the mouse_reset to 200
//disabled it at the moment. Seems to break syndicate who want 400 in mode 13
Bit16s max,min;
if ((Bit16s)reg_cx<(Bit16s)reg_dx) { min=(Bit16s)reg_cx;max=(Bit16s)reg_dx;}
else { min=(Bit16s)reg_dx;max=(Bit16s)reg_cx;}
mouse.min_y=min;
mouse.max_y=max;
/* Battlechess wants this */
if(mouse.y > mouse.max_y) mouse.y = mouse.max_y;
if(mouse.y < mouse.min_y) mouse.y = mouse.min_y;
/* Or alternatively this:
mouse.y = (mouse.max_y - mouse.min_y + 1)/2;*/
LOG(LOG_MOUSE,LOG_NORMAL)("Define Vertical range min:%d max:%d",min,max);
}
break;
case 0x09: /* Define GFX Cursor */
{
PhysPt src = SegPhys(es)+reg_dx;
MEM_BlockRead(src ,userdefScreenMask,CURSORY*2);
MEM_BlockRead(src+CURSORY*2,userdefCursorMask,CURSORY*2);
mouse.screenMask = userdefScreenMask;
mouse.cursorMask = userdefCursorMask;
mouse.hotx = reg_bx;
mouse.hoty = reg_cx;
mouse.cursorType = 2;
DrawCursor();
}
break;
case 0x0a: /* Define Text Cursor */
mouse.cursorType = reg_bx;
mouse.textAndMask = reg_cx;
mouse.textXorMask = reg_dx;
break;
case 0x0b: /* Read Motion Data */
reg_cx=(Bit16s)(mouse.mickey_x*mouse.mickeysPerPixel_x);
reg_dx=(Bit16s)(mouse.mickey_y*mouse.mickeysPerPixel_y);
mouse.mickey_x=0;
mouse.mickey_y=0;
break;
case 0x0c: /* Define interrupt subroutine parameters */
mouse.sub_mask=reg_cx;
mouse.sub_seg=SegValue(es);
mouse.sub_ofs=reg_dx;
Mouse_AutoLock(true); //Some games don't seem to reset the mouse before using
break;
case 0x0f: /* Define mickey/pixel rate */
Mouse_SetMickeyPixelRate(reg_cx,reg_dx);
break;
case 0x10: /* Define screen region for updating */
mouse.updateRegion_x[0]=reg_cx;
mouse.updateRegion_y[0]=reg_dx;
mouse.updateRegion_x[1]=reg_si;
mouse.updateRegion_y[1]=reg_di;
break;
case 0x11: /* Get number of buttons */
reg_ax=0xffff;
reg_bx=MOUSE_BUTTONS;
break;
case 0x13: /* Set double-speed threshold */
mouse.doubleSpeedThreshold=(reg_bx ? reg_bx : 64);
break;
case 0x14: /* Exchange event-handler */
{
Bit16u oldSeg = mouse.sub_seg;
Bit16u oldOfs = mouse.sub_ofs;
Bit16u oldMask= mouse.sub_mask;
// Set new values
mouse.sub_mask= reg_cx;
mouse.sub_seg = SegValue(es);
mouse.sub_ofs = reg_dx;
// Return old values
reg_cx = oldMask;
reg_dx = oldOfs;
SegSet16(es,oldSeg);
}
break;
case 0x15: /* Get Driver storage space requirements */
reg_bx = sizeof(mouse);
break;
case 0x16: /* Save driver state */
{
LOG(LOG_MOUSE,LOG_WARN)("Saving driver state...");
PhysPt dest = SegPhys(es)+reg_dx;
MEM_BlockWrite(dest, &mouse, sizeof(mouse));
}
break;
case 0x17: /* load driver state */
{
LOG(LOG_MOUSE,LOG_WARN)("Loading driver state...");
PhysPt src = SegPhys(es)+reg_dx;
MEM_BlockRead(src, &mouse, sizeof(mouse));
}
break;
case 0x1a: /* Set mouse sensitivity */
// ToDo : double mouse speed value
Mouse_SetSensitivity(reg_bx,reg_cx,reg_dx);
LOG(LOG_MOUSE,LOG_WARN)("Set sensitivity used with %d %d (%d)",reg_bx,reg_cx,reg_dx);
break;
case 0x1b: /* Get mouse sensitivity */
reg_bx = mouse.senv_x_val;
reg_cx = mouse.senv_y_val;
reg_dx = mouse.dspeed_val;
LOG(LOG_MOUSE,LOG_WARN)("Get sensitivity %d %d",reg_bx,reg_cx);
break;
case 0x1c: /* Set interrupt rate */
/* Can't really set a rate this is host determined */
break;
case 0x1d: /* Set display page number */
mouse.page=reg_bl;
break;
case 0x1e: /* Get display page number */
reg_bx=mouse.page;
break;
case 0x1f: /* Disable Mousedriver */
/* ES:BX old mouse driver Zero at the moment TODO */
reg_bx=0;
SegSet16(es,0);
mouse.enabled=false; /* Just for reporting not doing a thing with it */
mouse.oldhidden=mouse.hidden;
mouse.hidden=1;
break;
case 0x20: /* Enable Mousedriver */
mouse.enabled=true;
mouse.hidden=mouse.oldhidden;
break;
case 0x22: /* Set language for messages */
/*
* Values for mouse driver language:
*
* 00h English
* 01h French
* 02h Dutch
* 03h German
* 04h Swedish
* 05h Finnish
* 06h Spanish
* 07h Portugese
* 08h Italian
*
*/
mouse.language=reg_bx;
break;
case 0x23: /* Get language for messages */
reg_bx=mouse.language;
break;
case 0x24: /* Get Software version and mouse type */
reg_bx=0x805; //Version 8.05 woohoo
reg_ch=0x04; /* PS/2 type */
reg_cl=0; /* PS/2 (unused) */
break;
case 0x26: /* Get Maximum virtual coordinates */
reg_bx=(mouse.enabled ? 0x0000 : 0xffff);
reg_cx=(Bit16u)mouse.max_x;
reg_dx=(Bit16u)mouse.max_y;
break;
default:
LOG(LOG_MOUSE,LOG_ERROR)("Mouse Function %04X not implemented!",reg_ax);
break;
}
return CBRET_NONE;
}
static Bitu MOUSE_BD_Handler(void) {
// the stack contains offsets to register values
Bit16u raxpt=real_readw(SegValue(ss),reg_sp+0x0a);
Bit16u rbxpt=real_readw(SegValue(ss),reg_sp+0x08);
Bit16u rcxpt=real_readw(SegValue(ss),reg_sp+0x06);
Bit16u rdxpt=real_readw(SegValue(ss),reg_sp+0x04);
// read out the actual values, registers ARE overwritten
Bit16u rax=real_readw(SegValue(ds),raxpt);
reg_ax=rax;
reg_bx=real_readw(SegValue(ds),rbxpt);
reg_cx=real_readw(SegValue(ds),rcxpt);
reg_dx=real_readw(SegValue(ds),rdxpt);
// LOG_MSG("MOUSE BD: %04X %X %X %X %d %d",reg_ax,reg_bx,reg_cx,reg_dx,POS_X,POS_Y);
// some functions are treated in a special way (additional registers)
switch (rax) {
case 0x09: /* Define GFX Cursor */
case 0x16: /* Save driver state */
case 0x17: /* load driver state */
SegSet16(es,SegValue(ds));
break;
case 0x0c: /* Define interrupt subroutine parameters */
case 0x14: /* Exchange event-handler */
if (reg_bx!=0) SegSet16(es,reg_bx);
else SegSet16(es,SegValue(ds));
break;
case 0x10: /* Define screen region for updating */
reg_cx=real_readw(SegValue(ds),rdxpt);
reg_dx=real_readw(SegValue(ds),rdxpt+2);
reg_si=real_readw(SegValue(ds),rdxpt+4);
reg_di=real_readw(SegValue(ds),rdxpt+6);
break;
default:
break;
}
INT33_Handler();
// save back the registers, too
real_writew(SegValue(ds),raxpt,reg_ax);
real_writew(SegValue(ds),rbxpt,reg_bx);
real_writew(SegValue(ds),rcxpt,reg_cx);
real_writew(SegValue(ds),rdxpt,reg_dx);
switch (rax) {
case 0x1f: /* Disable Mousedriver */
real_writew(SegValue(ds),rbxpt,SegValue(es));
break;
case 0x14: /* Exchange event-handler */
real_writew(SegValue(ds),rcxpt,SegValue(es));
break;
default:
break;
}
reg_ax=rax;
return CBRET_NONE;
}
static Bitu INT74_Handler(void) {
if (mouse.events>0) {
mouse.events--;
/* Check for an active Interrupt Handler that will get called */
if (mouse.sub_mask & mouse.event_queue[mouse.events].type) {
reg_ax=mouse.event_queue[mouse.events].type;
reg_bx=mouse.event_queue[mouse.events].buttons;
reg_cx=POS_X;
reg_dx=POS_Y;
reg_si=(Bit16s)(mouse.mickey_x*mouse.mickeysPerPixel_x);
reg_di=(Bit16s)(mouse.mickey_y*mouse.mickeysPerPixel_y);
CPU_Push16(RealSeg(CALLBACK_RealPointer(int74_ret_callback)));
CPU_Push16(RealOff(CALLBACK_RealPointer(int74_ret_callback)));
SegSet16(cs, mouse.sub_seg);
reg_ip = mouse.sub_ofs;
if(mouse.in_UIR) LOG(LOG_MOUSE,LOG_ERROR)("Already in UIR!");
mouse.in_UIR = true;
} else if (useps2callback) {
CPU_Push16(RealSeg(CALLBACK_RealPointer(int74_ret_callback)));
CPU_Push16(RealOff(CALLBACK_RealPointer(int74_ret_callback)));
DoPS2Callback(mouse.event_queue[mouse.events].buttons, POS_X, POS_Y);
} else {
SegSet16(cs, RealSeg(CALLBACK_RealPointer(int74_ret_callback)));
reg_ip = RealOff(CALLBACK_RealPointer(int74_ret_callback));
}
} else {
SegSet16(cs, RealSeg(CALLBACK_RealPointer(int74_ret_callback)));
reg_ip = RealOff(CALLBACK_RealPointer(int74_ret_callback));
}
return CBRET_NONE;
}
Bitu MOUSE_UserInt_CB_Handler(void) {
mouse.in_UIR = false;
if (mouse.events) {
if (!mouse.timer_in_progress) {
mouse.timer_in_progress = true;
PIC_AddEvent(MOUSE_Limit_Events,MOUSE_DELAY);
}
}
return CBRET_NONE;
}
void MOUSE_Init(Section* /*sec*/) {
// Callback for mouse interrupt 0x33
call_int33=CALLBACK_Allocate();
// RealPt i33loc=RealMake(CB_SEG+1,(call_int33*CB_SIZE)-0x10);
RealPt i33loc=RealMake(DOS_GetMemory(0x1)-1,0x10);
CALLBACK_Setup(call_int33,&INT33_Handler,CB_MOUSE,Real2Phys(i33loc),"Mouse");
// Wasteland needs low(seg(int33))!=0 and low(ofs(int33))!=0
real_writed(0,0x33<<2,i33loc);
call_mouse_bd=CALLBACK_Allocate();
CALLBACK_Setup(call_mouse_bd,&MOUSE_BD_Handler,CB_RETF8,
PhysMake(RealSeg(i33loc),RealOff(i33loc)+2),"MouseBD");
// pseudocode for CB_MOUSE (including the special backdoor entry point):
// jump near i33hd
// callback MOUSE_BD_Handler
// retf 8
// label i33hd:
// callback INT33_Handler
// iret
// Callback for ps2 irq
call_int74=CALLBACK_Allocate();
CALLBACK_Setup(call_int74,&INT74_Handler,CB_IRQ12,"int 74");
// pseudocode for CB_IRQ12:
// push ds
// push es
// pushad
// sti
// callback INT74_Handler
// doesn't return here, but rather to CB_IRQ12_RET
// (ps2 callback/user callback inbetween if requested)
int74_ret_callback=CALLBACK_Allocate();
CALLBACK_Setup(int74_ret_callback,&MOUSE_UserInt_CB_Handler,CB_IRQ12_RET,"int 74 ret");
// pseudocode for CB_IRQ12_RET:
// callback MOUSE_UserInt_CB_Handler
// cli
// mov al, 0x20
// out 0xa0, al
// out 0x20, al
// popad
// pop es
// pop ds
// iret
Bit8u hwvec=(MOUSE_IRQ>7)?(0x70+MOUSE_IRQ-8):(0x8+MOUSE_IRQ);
RealSetVec(hwvec,CALLBACK_RealPointer(call_int74));
// Callback for ps2 user callback handling
useps2callback = false; ps2callbackinit = false;
call_ps2=CALLBACK_Allocate();
CALLBACK_Setup(call_ps2,&PS2_Handler,CB_RETF,"ps2 bios callback");
ps2_callback=CALLBACK_RealPointer(call_ps2);
memset(&mouse,0,sizeof(mouse));
mouse.hidden = 1; //Hide mouse on startup
mouse.timer_in_progress = false;
mouse.mode = 0xFF; //Non existing mode
mouse.sub_mask=0;
mouse.sub_seg=0x6362; // magic value
mouse.sub_ofs=0;
Mouse_ResetHardware();
Mouse_Reset();
Mouse_SetSensitivity(50,50,50);
}
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