valter/dosbox-staging
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Fill out VBE2 mode information

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Added Pmode interface code
Corrected some return codes with far page change function


Imported-from: https://svn.code.sf.net/p/dosbox/code-0/dosbox/trunk@1223
This commit is contained in:
Sjoerd van der Berg 2003-09-03 20:26:52 +00:00
parent 7cb8ed12e0
commit 2676825d87
1 changed files with 56 additions and 16 deletions
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72
src/ints/int10_vesa.cpp
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@ -31,6 +31,10 @@ static struct {
Bitu setwindow;
} callback;
static char string_oem[]="S3 Incorporated. Trio64";
static char string_vendorname[]="DOSBox Development Team";
static char string_productname[]="DOSBox - The DOS Emulator";
static char string_productrev[]="DOSBox "VERSION;
#ifdef _MSC_VER
#pragma pack (1)
@ -80,7 +84,7 @@ Bit8u VESA_GetSVGAInformation(Bit16u seg,Bit16u off) {
/* Fill 256 byte buffer with VESA information */
PhysPt buffer=PhysMake(seg,off);
Bitu i;
bool vbe2=false;
bool vbe2=false;Bit16u vbe2_pos=256+off;
if (mem_readd(buffer)==0x32454256) vbe2=true;
if (vbe2) {
for (i=0;i<0x200;i++) mem_writeb(buffer+i,0);
@ -88,9 +92,22 @@ Bit8u VESA_GetSVGAInformation(Bit16u seg,Bit16u off) {
for (i=0;i<0x100;i++) mem_writeb(buffer+i,0);
}
/* Fill common data */
MEM_BlockWrite(buffer,(void *)"VESA",4); //Identification
mem_writew(buffer+0x04,0x102); //Vesa version
mem_writed(buffer+0x06,int10.rom.oemstring); //Oemstring
MEM_BlockWrite(buffer,(void *)"VESA",4); //Identification
if (vbe2) {
mem_writew(buffer+0x04,0x200); //Vesa version 0x200
mem_writed(buffer+0x06,RealMake(seg,vbe2_pos));
for (i=0;i<sizeof(string_oem);i++) real_writeb(seg,vbe2_pos++,string_oem[i]);
mem_writew(buffer+0x14,0x200); //VBE 2 software revision
mem_writed(buffer+0x16,RealMake(seg,vbe2_pos));
for (i=0;i<sizeof(string_vendorname);i++) real_writeb(seg,vbe2_pos++,string_vendorname[i]);
mem_writed(buffer+0x1a,RealMake(seg,vbe2_pos));
for (i=0;i<sizeof(string_productname);i++) real_writeb(seg,vbe2_pos++,string_productname[i]);
mem_writed(buffer+0x1e,RealMake(seg,vbe2_pos));
for (i=0;i<sizeof(string_productrev);i++) real_writeb(seg,vbe2_pos++,string_productrev[i]);
} else {
mem_writew(buffer+0x04,0x102); //Vesa version 0x102
mem_writed(buffer+0x06,int10.rom.oemstring); //Oemstring
}
mem_writed(buffer+0x0a,0x0); //Capabilities and flags
mem_writed(buffer+0x0e,int10.rom.vesa_modes); //VESA Mode list
mem_writew(buffer+0x12,32); //32 64kb blocks for 2 mb memory
@ -114,12 +131,12 @@ foundit:
VideoModeBlock * mblock=&ModeList[i];
switch (mblock->type) {
case M_LIN8: //Linear 8-bit
WLE(minfo.ModeAttributes,0x1b); //No bios output support, although would be easy
WLE(minfo.ModeAttributes,0x9b);
WLE(minfo.WinAAttributes,0x7); //Exists/readable/writable
WLE(minfo.WinGranularity,64);
WLE(minfo.WinSize,64);
WLE(minfo.WinASegment,0xa000);
WLE(minfo.WinBSegment,0xa000);
// WLE(minfo.WinBSegment,0xa000);
WLE(minfo.WinFuncPtr,CALLBACK_RealPointer(callback.setwindow));
WLE(minfo.BytesPerScanLine,mblock->swidth);
WLE(minfo.NumberOfPlanes,0x1);
@ -134,6 +151,8 @@ foundit:
WLE(minfo.YResolution,mblock->sheight);
WLE(minfo.XCharSize,mblock->cwidth);
WLE(minfo.YCharSize,mblock->cheight);
WLE(minfo.PhysBasePtr,S3_LFB_BASE);
MEM_BlockWrite(buf,&minfo,sizeof(MODE_INFO));
return 0x00;
}
@ -150,7 +169,7 @@ Bit8u VESA_GetSVGAMode(Bit16u & mode) {
}
Bit8u VESA_SetCPUWindow(Bit8u window,Bit16u address) {
//TODO Check with univbe if it doesn't check for window param either
if (window) return 0x1;
if ((address<32)) {
IO_Write(0x3d4,0x6a);
IO_Write(0x3d5,(Bit8u)address);
@ -159,7 +178,7 @@ Bit8u VESA_SetCPUWindow(Bit8u window,Bit16u address) {
}
Bit8u VESA_GetCPUWindow(Bit8u window,Bit16u & address) {
//TODO Check with univbe if it doesn't check for window param either
if (window) return 0x1;
IO_Write(0x3d4,0x6a);
address=IO_Read(0x3d5);
return 0x0;
@ -230,12 +249,26 @@ Bit8u VESA_ScanLineLength(Bit8u subcall,Bit16u & bytes,Bit16u & pixels,Bit16u &
return 0x0;
}
/* Based of the s3 univbe driver */
static Bit8u PmodeInterface[]={
0x08,0x00,0x19,0x00,0x57,0x00,0x00,0x00,0x50,0x52,0x8b,0xc2,0x8a,0xe0,0xb0,0x6a,
0x66,0xba,0xd4,0x03,0x66,0xef,0x5a,0x58,0xc3,0x52,0x66,0xba,0xda,0x03,0xec,0xa8,
0x01,0x75,0xfb,0x5a,0x53,0x8a,0xf9,0xb3,0x0d,0xb1,0x0c,0x66,0x8b,0xf2,0x66,0xba,
0xd4,0x03,0x66,0x8b,0xc3,0x66,0xef,0x66,0x8b,0xc1,0x66,0xef,0x66,0x8b,0xde,0x8a,
0xe3,0xb0,0x69,0x66,0xef,0x5b,0x52,0xf6,0xc3,0x80,0x74,0x09,0x66,0xba,0xda,0x03,
0xec,0xa8,0x08,0x74,0xfb,0x5a,0xc3,0xf6,0xc3,0x80,0x74,0x10,0x52,0x66,0xba,0xda,
0x03,0xec,0xa8,0x08,0x75,0xfb,0xec,0xa8,0x08,0x74,0xfb,0x5a,0x1e,0x06,0x1f,0x0f,
0xb7,0xc9,0x8b,0xc2,0x66,0xba,0xc8,0x03,0xee,0x42,0xfc,0x8a,0x47,0x02,0xee,0x8a,
0x47,0x01,0xee,0x8a,0x07,0xee,0x83,0xc7,0x04,0x49,0x75,0xef,0x1f,0xc3
};
Bit8u VESA_SetDisplayStart(Bit16u x,Bit16u y) {
//TODO Maybe do things differently with lowres double line modes?
Bitu start;
switch (CurMode->type) {
case M_LIN8:
start=vga.config.scan_len*4*y+x;
start=vga.config.scan_len*8*y+x;
vga.config.display_start=start/4;
IO_Read(0x3da);
IO_Write(0x3c0,0x13+32);
@ -248,8 +281,8 @@ Bit8u VESA_SetDisplayStart(Bit16u x,Bit16u y) {
}
Bit8u VESA_GetDisplayStart(Bit16u & x,Bit16u & y) {
Bitu times=vga.config.display_start/(vga.config.scan_len*4);
Bitu rem=vga.config.display_start % (vga.config.scan_len*4);
Bitu times=(vga.config.display_start*4)/(vga.config.scan_len*8);
Bitu rem=(vga.config.display_start*4) % (vga.config.scan_len*8);
Bitu pan=vga.config.pel_panning;
switch (CurMode->type) {
case M_LIN8:
@ -265,11 +298,11 @@ Bit8u VESA_GetDisplayStart(Bit16u & x,Bit16u & y) {
}
static char oemstring[]="S3 Incorporated. Trio64";
static Bitu SetWindowPositionHandler(void) {
if (reg_bh) VESA_GetCPUWindow(reg_bl,reg_dx);
else VESA_SetCPUWindow(reg_bl,reg_dx);
if (reg_bh) reg_ah=VESA_GetCPUWindow(reg_bl,reg_dx);
else reg_ah=VESA_SetCPUWindow(reg_bl,reg_dx);
reg_al=0x4f;
return 0;
}
@ -290,10 +323,17 @@ void INT10_SetupVESA(void) {
phys_writew(PhysMake(0xc000,int10.rom.used),0xffff);
int10.rom.used+=2;
int10.rom.oemstring=RealMake(0xc000,int10.rom.used);
Bitu len=strlen(oemstring)+1;
Bitu len=strlen(string_oem)+1;
for (i=0;i<len;i++) {
phys_writeb(0xc0000+i+int10.rom.used++,oemstring[i]);
phys_writeb(0xc0000+i+int10.rom.used++,string_oem[i]);
}
/* Copy the pmode interface block */
int10.rom.pmode_interface=RealMake(0xc000,int10.rom.used);
int10.rom.pmode_interface_size=sizeof(PmodeInterface);
for (i=0;i<sizeof(PmodeInterface);i++) {
phys_writeb(0xc0000+int10.rom.used++,PmodeInterface[i]);
}
callback.setwindow=CALLBACK_Allocate();
CALLBACK_Setup(callback.setwindow,SetWindowPositionHandler,CB_RETF);
}