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singrdk/base/Drivers/S3Trio64/S3Trio64.sg

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RDK 1.1
2008-03-05 09:52:00 -05:00
////////////////////////////////////////////////////////////////////////////////
//
// Microsoft Research Singularity
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
// File: S3Trio64.sg
//
// Note:
//
using System;
using System.Collections;
using System.Configuration.Assemblies;
using System.Runtime.InteropServices;
using System.Runtime.Remoting;
using System.Text;
using System.Threading;
using Microsoft.SingSharp;
using Microsoft.Contracts;
using Microsoft.Singularity;
using Microsoft.Singularity.Channels;
using Microsoft.Singularity.Extending;
using Microsoft.Singularity.Directory;
using Microsoft.Singularity.Io;
using Microsoft.Singularity.Configuration;
using Microsoft.Singularity.V1.Services;
using Microsoft.Singularity.V1.Threads;
using Allocation = Microsoft.Singularity.V1.Services.SharedHeapService.Allocation;
namespace Microsoft.Singularity.Drivers.S3Trio64
{
// create the resource object for CTR to fill in
[DriverCategory]
[Signature("pci/ven_5333&dev_8811&cc_0300")]
internal class S3TrioResources : DriverCategoryDeclaration
{
[IoMemoryRange(0, Default = 0xf8000000, Length = 0x400000)]
internal IoMemoryRange frameBuffer;
[IoFixedMemoryRange(Base = 0xb8000, Length = 0x8000, Shared = true)]
internal IoMemoryRange textBuffer;
[IoFixedMemoryRange(Base = 0xa0000, Length = 0x8000, Shared = true)]
internal IoMemoryRange fontBuffer;
[IoFixedPortRange(Base = 0x03c0, Length = 0x20, Shared = true)]
internal IoPortRange dev;
[IoFixedPortRange(Base = 0x4ae8, Length = 0x02)]
internal IoPortRange adv;
[IoFixedPortRange(Base = 0x9ae8, Length = 0x02)]
internal IoPortRange gps;
[ExtensionEndpoint]
internal TRef<ExtensionContract.Exp:Start> ec;
[ServiceEndpoint(typeof(VideoDeviceContract))]
internal TRef<ServiceProviderContract.Exp:Start> video;
[ServiceEndpoint(typeof(ConsoleDeviceContract))]
internal TRef<ServiceProviderContract.Exp:Start> console;
// This should have a custom attribute.
internal static S3TrioResources Values;
// LTR will create the rest of this class:
// LTR creates a private constructor so that the app writer can't
// instantiate objects of this class
private S3TrioResources()
{
// endpoint initialization
ec = new TRef<ExtensionContract.Exp:Start>
((!)(Process.GetStartupEndpoint(0) as ExtensionContract.Exp));
video = new TRef<ServiceProviderContract.Exp:Start>
((!)(Process.GetStartupEndpoint(1) as ServiceProviderContract.Exp));
console = new TRef<ServiceProviderContract.Exp:Start>
((!)(Process.GetStartupEndpoint(2) as ServiceProviderContract.Exp));
// Io Resource initialization
IoConfig config = (IoConfig!)IoConfig.GetConfig();
// dynamic resources
frameBuffer = (IoMemoryRange)config.DynamicRanges[0];
// fixed resources
textBuffer = (IoMemoryRange)config.FixedRanges[0];
fontBuffer = (IoMemoryRange)config.FixedRanges[1];
dev = (IoPortRange)config.FixedRanges[2];
adv = (IoPortRange)config.FixedRanges[3];
gps = (IoPortRange)config.FixedRanges[4];
base();
}
static S3TrioResources()
{
Values = new S3TrioResources();
}
}
public class S3Control
{
private static S3Device device;
public static int Main(String[] args)
{
ExtensionContract.Exp! ec = S3TrioResources.Values.ec.Acquire();
ServiceProviderContract.Exp! ve = S3TrioResources.Values.video.Acquire();
ServiceProviderContract.Exp! te = S3TrioResources.Values.console.Acquire();
// Create the device
device = new S3Device(S3TrioResources.Values);
device.Initialize();
// Signal I/O system that we are initialized.
ec.SendSuccess();
// create a set of all client endpoints connected to the video
// interface.
ESet<VideoDeviceContract.Exp:Ready> vs
= new ESet<VideoDeviceContract.Exp:Ready>();
// create a set of all client endpoints connected to the text
// interface.
ESet<ConsoleDeviceContract.Exp:Ready> ts
= new ESet<ConsoleDeviceContract.Exp:Ready>();
try {
for (bool run = true; run;) {
switch receive {
///////////////////////////////////// I/O System Messages.
case ec.Shutdown():
ec.SendAckShutdown();
run = false;
break;
/////////////////////////////// Service Provider Messages.
case ve.Connect(candidate):
VideoDeviceContract.Exp newClient
= candidate as VideoDeviceContract.Exp;
if (newClient != null) {
newClient.SendSuccess();
vs.Add(newClient);
ve.SendAckConnect();
}
else {
ve.SendNackConnect(candidate);
}
break;
case te.Connect(candidate):
ConsoleDeviceContract.Exp newClient
= candidate as ConsoleDeviceContract.Exp;
if (newClient != null) {
newClient.SendSuccess();
ts.Add(newClient);
te.SendAckConnect();
}
else {
te.SendNackConnect(candidate);
}
break;
////////////////////////////////// Video Service Messages.
case ep.Plot(x, y, color32) in vs:
device.Plot(x, y, new RGB(color32));
ep.SendAckPlot();
vs.Add(ep);
break;
case ep.Fill(x1, y1, x2, y2, color32) in vs:
device.Fill(x1, y1, x2, y2, new RGB(color32));
ep.SendAckFill();
vs.Add(ep);
break;
case ep.BitBltBmp(x, y, buffer) in vs:
device.BitBltBmp(x, y, (!)buffer);
ep.SendAckBitBltBmp(buffer);
vs.Add(ep);
break;
case ep.BitBltPng(x, y, buffer) in vs:
device.BitBltPng(x, y, (!)buffer);
ep.SendAckBitBltPng(buffer);
vs.Add(ep);
break;
case ep.Scroll(x1, y1, x2, y2, dy) in vs:
device.Scroll(x1, y1, x2, y2, dy);
ep.SendAckScroll();
vs.Add(ep);
break;
case ep.ChannelClosed() in vs:
Tracing.Log(Tracing.Debug, "Client channel closes.");
delete ep;
break;
//////////////////////////////// Console Service Messages.
case ep.Clear() in ts:
device.Window.Clear();
ep.SendAckClear();
ts.Add(ep);
break;
case ep.ClearCursorToEndOfLine() in ts:
device.Window.ClearCursorToEndOfLine();
ep.SendAckClearCursorToEndOfLine();
ts.Add(ep);
break;
case ep.Write(buffer, offset, count) in ts:
if (offset + count <= buffer.Length) {
device.Window.Write(buffer, offset, count);
ep.SendAckWrite(buffer);
}
else {
ep.SendNakWrite(buffer);
}
ts.Add(ep);
break;
case ep.PutChar(c) in ts:
device.Window.PutChar(c);
ep.SendAckPutChar();
ts.Add(ep);
break;
case ep.PutCharAt(c, column, row) in ts:
if (device.Window.PutCharAt(c, column, row)) {
ep.SendAckPutCharAt();
}
else {
ep.SendInvalidPosition();
}
ts.Add(ep);
break;
case ep.GetDisplayDimensions() in ts:
ep.SendDisplayDimensions(device.Window.TextColumns,
device.Window.TextRows);
ts.Add(ep);
break;
case ep.GetCursorPosition() in ts:
ep.SendCursorPosition(device.Window.TextColumn,
device.Window.TextRow);
ts.Add(ep);
break;
case ep.SetCursorPosition(int column, int row) in ts:
if (device.Window.SetTextCursor(column, row)) {
ep.SendAckSetCursorPosition();
}
else {
ep.SendInvalidPosition();
}
ts.Add(ep);
break;
case ep.SetCursorSize(cursorSize) in ts:
ep.SendNotSupported();
ts.Add(ep);
break;
case ep.CursorFlash() in ts:
device.Window.CursorFlash();
ep.SendAckCursorFlash();
ts.Add(ep); // add client endpoint back into set.
break;
case ep.CursorHide() in ts:
device.Window.CursorHide();
ep.SendAckCursorHide();
ts.Add(ep); // add client endpoint back into set.
break;
case ep.CursorShow() in ts:
device.Window.CursorShow();
ep.SendAckCursorShow();
ts.Add(ep); // add client endpoint back into set.
break;
case ep.ChannelClosed() in ts:
Tracing.Log(Tracing.Debug, "Client channel closes.");
delete ep;
break;
case unsatisfiable:
Tracing.Log(Tracing.Debug, "Unsatisfiable.");
run = false;
break;
}
}
}
finally {
Tracing.Log(Tracing.Debug, "S3Trio64 finished message pump.");
}
// Close the device
device.Finalize();
Tracing.Log(Tracing.Audit, "Shutdown");
delete ec;
delete te;
delete ve;
vs.Dispose();
ts.Dispose();
return 0;
}
}
internal delegate void InitMode(S3Device! self);
internal class S3_VIDEO_MODE
{
public readonly int BytesPerPixel;
public readonly int ScreenWidth;
public readonly int ScreenStride;
public readonly int ScreenHeight;
public readonly int ScreenFrequency;
public readonly int Clock;
public readonly InitMode Init;
public S3_VIDEO_MODE(int BPP,int SW,int SH, int SF, int Clk, InitMode I)
{
BytesPerPixel = BPP;
ScreenStride = SW * BPP;
ScreenWidth = SW;
ScreenHeight = SH;
ScreenFrequency = SF;
Clock = Clk;
Init = I;
}
}
public class S3Device
{
public const ushort ATC_ADDR_REG = 0x00; // 0x03C0
public const ushort ATC_DATA_REG = 0x01; // 0x03C1
public const ushort MISC_OUT_REG = 0x02; // 0x03C2
public const ushort MISC_OUTR_REG = 0x0C; // 0x03CC
public const ushort SEQ_ADDR_REG = 0x04; // 0x03C4
public const ushort SEQ_DATA_REG = 0x05; // 0x03C5
public const ushort DAC_MASK_REG = 0x06; // 0x03C6
public const ushort GRAPH_ADDR_REG = 0x0E; // 0x03CE
public const ushort GRAPH_DATA_REG = 0x0F; // 0x03CF
public const ushort CRT_ADDR_REG = 0x14; // 0x03D4
public const ushort CRT_DATA_REG = 0x15; // 0x03D5
public const ushort SYS_CTRL_REG = 0x1A; // 0x03DA
public const ushort ADV_CTRL_REG = 0x4AE8;
public const ushort GP_STAT_REG = 0x9AE8;
private SvgaWindow console;
private bool Ready;
private S3_VIDEO_MODE ActiveMode;
private int AdapterMemorySize;
private IoPort! CrtAddrPort;
private IoPort! CrtDataPort;
private IoPort! GpStatPort;
private IoPort! SysCtrlPort;
private IoPort! DacMaskPort;
private IoPort! SeqAddrPort;
private IoPort! SeqDataPort;
private IoPort! MiscOutPort;
private IoPort! MiscOutRPort;
private IoPort! AtcAddrPort;
private IoPort! AtcDataPort;
private IoPort! AdvCtrlPort;
private IoPort! GraphAddrPort;
private IoPort! GraphDataPort;
static S3_VIDEO_MODE[]! Modes = new S3_VIDEO_MODE[3] {
new S3_VIDEO_MODE(2,1024,768,60,0xd, new InitMode(set_1024x60Hz_16bpp)),
new S3_VIDEO_MODE(2,800,600,60,0xd, new InitMode(set_800x60Hz_16bpp)),
new S3_VIDEO_MODE(2,640,400,60,0, new InitMode(set_640x60Hz_16bpp)),
};
private ushort[]! lineBuffer;
private IoMemory! screenBuffer; // Screen buffer within PCI-mapped memory.
private IoMemory! textBuffer; // VGA limited text buffer.
private IoMemory! fontBuffer; // VGA limited font buffer.
internal S3Device(S3TrioResources! res)
{
// Allow access to first 2MB for device's memory.
screenBuffer = (!)res.frameBuffer.MemoryAtOffset(0, 0x400000, Access.ReadWrite);
textBuffer = (!)res.textBuffer.MemoryAtOffset(0, 0x8000, true, true);
fontBuffer = (!)res.fontBuffer.MemoryAtOffset(0, 0x8000, true, true);
#if DONT
DebugStub.WriteLine("S3Trio64 linear buffer at {0:x}",
__arglist((uint)screenBuffer.PhysicalAddress.Value));
#endif
AtcAddrPort = (!)res.dev.PortAtOffset(ATC_ADDR_REG, 2, Access.Write);
AtcDataPort = (!)res.dev.PortAtOffset(ATC_DATA_REG, 2, Access.ReadWrite);
GraphAddrPort = (!)res.dev.PortAtOffset(GRAPH_ADDR_REG, 2, Access.Write);
GraphDataPort = (!)res.dev.PortAtOffset(GRAPH_DATA_REG, 2, Access.ReadWrite);
CrtAddrPort = (!)res.dev.PortAtOffset(CRT_ADDR_REG, 2, Access.Write);
CrtDataPort = (!)res.dev.PortAtOffset(CRT_DATA_REG, 2, Access.ReadWrite);
SysCtrlPort = (!)res.dev.PortAtOffset(SYS_CTRL_REG, 2, Access.Read);
DacMaskPort = (!)res.dev.PortAtOffset(DAC_MASK_REG, 2, Access.ReadWrite);
SeqAddrPort = (!)res.dev.PortAtOffset(SEQ_ADDR_REG, 2, Access.Write);
SeqDataPort = (!)res.dev.PortAtOffset(SEQ_DATA_REG, 2, Access.ReadWrite);
MiscOutPort = (!)res.dev.PortAtOffset(MISC_OUT_REG, 2, Access.Write);
MiscOutRPort = (!)res.dev.PortAtOffset(MISC_OUTR_REG, 2, Access.ReadWrite);
AdvCtrlPort = (!)res.adv.PortAtOffset(0, 2, Access.ReadWrite);
GpStatPort = (!)res.gps.PortAtOffset(0, 2, Access.Read);
lineBuffer = new ushort [2048];
base();
Ready = true;
}
#if DONT_DUMP
private static void Dump(IoMemory buffer, int beg, int end)
{
for (int i = beg; i < end; i += 0x08) {
DebugStub.Write(" {0,4:x}: ", __arglist(i));
for (int j = i; j < i + 0x08 && j < end; j++) {
byte v = buffer.Read8(j);
DebugStub.Write("{0,2:x2} ", __arglist(v));
}
DebugStub.WriteLine();
}
}
private static void DumpRegs(IoPort addr, IoPort data, byte beg, byte end)
{
for (byte i = beg; i < end; i += 0x10) {
DebugStub.Print(" {0}:{1,2:x2} = ", __arglist(addr, i));
for (byte j = i; j < i + 0x10 && j < end; j++) {
addr.Write8(j);
byte v = data.Read8();
DebugStub.Print("{0,2:x2} ", __arglist(v));
}
DebugStub.Print("\n");
}
}
private static void DumpAtc(IoPort reset,
IoPort addr, IoPort data,
byte beg, byte end)
{
for (byte i = beg; i < end; i += 0x10) {
DebugStub.Print(" {0}:{1,2:x2} = ", __arglist(addr, i));
for (byte j = i; j < i + 0x10 && j < end; j++) {
reset.Read8();
addr.Write8(j);
byte v = data.Read8();
DebugStub.Print("{0,2:x2} ", __arglist(v));
}
DebugStub.Print("\n");
}
}
private void Dump()
{
DumpRegs(SeqAddrPort, SeqDataPort, 0x00, 0x05);
DumpRegs(GraphAddrPort, GraphDataPort, 0x00, 0x09);
DumpRegs(CrtAddrPort, CrtDataPort, 0x00, 0x68);
DumpAtc(SysCtrlPort, AtcAddrPort, AtcDataPort, 0x00, 0x15);
DebugStub.Print(" {0}:{1,2:x2} = {2,2:x2}\n",
__arglist(MiscOutRPort, 0x00, MiscOutRPort.Read8()));
}
#endif
public void Initialize()
{
#if DONT
DebugStub.Print("Initializing S3 Display\n");
#endif
ActiveMode = (!)Modes[0];
S3FindAdapter();
S3Initialize();
Fill(0, 0, ActiveMode.ScreenWidth - 1, ActiveMode.ScreenHeight - 1, RGB.Black);
console = new SvgaWindow(this, 12, 12,
ActiveMode.ScreenWidth-13, ActiveMode.ScreenHeight-13);
console.Write("Singularity S3Trio64 Driver\n");
console.Write("");
console.Write("");
console.Write("");
}
public SvgaWindow! Window
{
get { return console; }
}
public void Finalize()
{
Ready = false;
VgaTextMode();
textBuffer.Write16(0, 0x1f20, 50 * 80);
}
/* public static VIDEO_ACCESS_RANGE []S3AccessRanges = new VIDEO_ACCESS_RANGE[]
{
{0x000003C0, 0x00000000, 0x00000010, 1, 1, 1, 0}, // 2 Various VGA regs
{0x000003D4, 0x00000000, 0x00000008, 1, 1, 1, 0}, // 3 System Control Registers
{0x000042E8, 0x00000000, 0x00000002, 1, 1, 0, 0}, // 4 SubSys-Stat/Cntl
{0x00004AE8, 0x00000000, 0x00000002, 1, 1, 0, 0}, // 5 AdvFunc-Cntl
{0x000082E8, 0x00000000, 0x00000004, 1, 1, 0, 0}, // 6 Cur-Y
{0x000086E8, 0x00000000, 0x00000004, 1, 1, 0, 0}, // 7 Cur-X
{0x00008AE8, 0x00000000, 0x00000004, 1, 1, 0, 0}, // 8 DestY-AxStp
{0x00008EE8, 0x00000000, 0x00000004, 1, 1, 0, 0}, // 9 DestX-SiaStp
{0x000092E8, 0x00000000, 0x00000004, 1, 1, 0, 0}, // 10 Err-Term
{0x000096E8, 0x00000000, 0x00000004, 1, 1, 0, 0}, // 11 Maj-Axis-Pcnt(Rec-Width)
{0x00009AE8, 0x00000000, 0x00000004, 1, 1, 0, 0}, // 12 Gp-Stat/Cmd
{0x00009EE8, 0x00000000, 0x00000004, 1, 1, 0, 0}, // 13 Short-Stroke
{0x0000A2E8, 0x00000000, 0x00000004, 1, 1, 0, 0}, // 14 Bkgd-Color
{0x0000A6E8, 0x00000000, 0x00000004, 1, 1, 0, 0}, // 15 Frgd-Color
{0x0000AAE8, 0x00000000, 0x00000004, 1, 1, 0, 0}, // 16 Wrt_Mask
{0x0000AEE8, 0x00000000, 0x00000004, 1, 1, 0, 0}, // 17 Rd-Mask
{0x0000B6E8, 0x00000000, 0x00000004, 1, 1, 0, 0}, // 18 Bkgd-Mix
{0x0000BAE8, 0x00000000, 0x00000004, 1, 1, 0, 0}, // 19 Frgd-Mix
{0x0000BEE8, 0x00000000, 0x00000004, 1, 1, 0, 0}, // 20 Mulitfucn_Cntl
{0x0000E2E8, 0x00000000, 0x00000004, 1, 1, 0, 0}, // 21 Pix-Trans
//
// All S3 boards decode more ports than are documented. If we
// don't reserve these extra ports, the PCI arbitrator may grant
// one to a PCI device, and thus clobber the S3.
//
// The aliased ports seem to be any ports where bit 15 is set;
// for these, the state of bit 14 is effectively ignored.
//
{0x0000C2E8, 0x00000000, 0x00000004, 1, 1, 0, 1}, // 22 Alt Cur-Y
{0x0000C6E8, 0x00000000, 0x00000004, 1, 1, 0, 1}, // 23 Alt Cur-X
{0x0000CAE8, 0x00000000, 0x00000004, 1, 1, 0, 1}, // 24 Alt DestY-AxStp
{0x0000CEE8, 0x00000000, 0x00000004, 1, 1, 0, 1}, // 25 Alt DestX-SiaStp
{0x0000D2E8, 0x00000000, 0x00000004, 1, 1, 0, 1}, // 26 Alt Err-Term
{0x0000D6E8, 0x00000000, 0x00000004, 1, 1, 0, 1}, // 27 Alt Maj-Axis-Pcnt(Rec-Width)
{0x0000DAE8, 0x00000000, 0x00000004, 1, 1, 0, 1}, // 28 Alt Gp-Stat/Cmd
{0x0000DEE8, 0x00000000, 0x00000004, 1, 1, 0, 1}, // 29 Alt Short-Stroke
{0x0000E6E8, 0x00000000, 0x00000004, 1, 1, 0, 1}, // 30 Alt Frgd-Color
{0x0000EAE8, 0x00000000, 0x00000004, 1, 1, 0, 1}, // 31 Alt Wrt_Mask
{0x0000EEE8, 0x00000000, 0x00000004, 1, 1, 0, 1}, // 32 Alt Rd-Mask
{0x0000F6E8, 0x00000000, 0x00000004, 1, 1, 0, 1}, // 33 Alt Bkgd-Mix
{0x0000FAE8, 0x00000000, 0x00000004, 1, 1, 0, 1}, // 34 Alt Frgd-Mix
{0x0000FEE8, 0x00000000, 0x00000004, 1, 1, 0, 1}, // 35 Alt Mulitfucn_Cntl
};*/
/*****************************************************************************
* 864 IoMemory Timing Table(s)
****************************************************************************/
//
// M parameter values, used in Set864MemoryTiming()
//
// access to this table is controlled by constants in Set864MemoryTiming()
// if you change the table make sure you change the constants
//
public static byte[] MParameterTable = new byte[]
{
// 8 bit color 16 bit color
// 60Hz 72Hz 60Hz 72Hz
0xd8, 0xa8, 0x58, 0x38, // 640 x 480, 1 Mb frame buffer
0x78, 0x58, 0x20, 0x08, // 800 x 600, 1 Mb frame buffer
0x38, 0x28, 0x00, 0x00, // 1024 x 768, 1 Mb frame buffer
0xf8, 0xf8, 0xf8, 0xe0, // 640 x 480, 2 Mb or greater frame buffer
0xf8, 0xf8, 0xa8, 0x68, // 800 x 600, 2 Mb or greater frame buffer
0xd8, 0xa0, 0x40, 0x20 // 1024 x 768, 2 Mb or greater frame buffer
};
public void S3FindAdapter()
{
#if DONT
DebugStub.Print("S3FindAdapter\n");
#endif
// Unlocked the extended registers.
CrtAddrPort.Write16(0x4838);
CrtAddrPort.Write16(0xA039);
//
// Get the size of the video memory.
//
CrtAddrPort.Write8(0x36);
AdapterMemorySize = (8 - ((CrtDataPort.Read8() >> 5) & 0x7)) * 0x80000;
} // end S3FindAdapter()
private void VideoPortStallExecution(int delay)
{
// dummy definition
}
private void WaitForGpuIdle()
{
//verifying that bit 9 of 9AE8H is 0
while ((GpStatPort.Read16() & 0x0200) != 0) { }
}
private void S3Initialize()
{
byte bt;
#if DONT
DebugStub.Print("S3Initialize\n");
#endif
// Turn off the screen at the DAC.
DacMaskPort.Write8(0x00);
SeqAddrPort.Write16(0x0100); // Async Reset
#if DONT
DebugStub.Print("S3Initialize 001\n");
#endif
Wait_VSync();
//
// Wait for vertical sync to make sure that bit 3 of SR1
// is not changed to a different value during an active video
// period as suggested by S3 errata sheet.
//
IndxOut(SeqAddrPort, new byte[] { 0x03,0x01,0x0F,0x00,0x0e } );
#if DONT
DebugStub.Print("S3Initialize 002\n");
#endif
// program graphics controller registers
IndxOut(GraphAddrPort, new byte[] { 0x00,0x00,0x00,0x00,0x00,0x00,0x05,0x0f,0xff});
CrtAddrPort.Write16(0x4838); // Unlock the S3 specific regs
CrtAddrPort.Write16(0xA039); // Unlock the more S3 specific regs
CrtAddrPort.Write16(0x0140); // Do this before SETCRTC because CRTC streams have to write to 0x4ae8
// Enable 8514/a reg access
#if DONT
DebugStub.Print("S3Initialize 003\n");
#endif
AdvCtrlPort.Write16(0x0001);
CrtAddrPort.Write16(0x4838); // Unlock the S3 specific regs
CrtAddrPort.Write16(0xa039); // Unlock the more S3 specific regs
CrtAddrPort.Write16(0x0011); // Unprotect CRTC regs
ActiveMode.Init(this);
// Program the CRTC regs
#if DONT
DebugStub.Print("S3Initialize 6\n");
#endif
CrtAddrPort.Write16(0x0042); // make sure that CR42 is 0 before it
// is enabled as a clock select source
CrtAddrPort.Write16(0x8d31); // memory configuration reg
CrtAddrPort.Write16(0x2033); // backward compatibility 2 reg
CrtAddrPort.Write8(0x43); // extended mode reg
bt=CrtDataPort.Read8(); //reset every bit other than 4th bit
bt &= 0x10;
CrtDataPort.Write8(bt);
CrtAddrPort.Write8(0x51); // extended system control reg 2
// use MASKOUT operation to prevent
// wiping out the extension bits of
#if DONT
DebugStub.Print("S3Initialize 7\n");
#endif
bt=CrtDataPort.Read8(); // CR13 (logical line width) in 16
bt &= 0x30; // bit per pixel color mode
CrtDataPort.Write8(bt);
#if DONT
DebugStub.Print("S3Initialize 7.1\n");
#endif
CrtAddrPort.Write16(0x0025); // general output port
//
// Set the address for the frame buffer window and set the window
// size.
//
#if DONT
DebugStub.Print("S3Trio64 linear buffer at {0:x}\n",
__arglist((uint)screenBuffer.PhysicalAddress.Value));
#endif
CrtAddrPort.Write8(0x59);
CrtDataPort.Write8((byte)(screenBuffer.PhysicalAddress.Value >> 24));
CrtAddrPort.Write8(0x5A);
CrtDataPort.Write8((byte)(screenBuffer.PhysicalAddress.Value >> 16));
#if DONT
DebugStub.Print("S3Initialize 7.2\n");
#endif
// Enable Linear Addressing, and select 4MB window.
CrtAddrPort.Write8(0x58);
bt=CrtDataPort.Read8();
bt &= 0xEC;
bt |= 0x13;
CrtDataPort.Write8(bt);
#if DONT
DebugStub.Print("S3Initialize 7.4\n");
#endif
#if DONT
DebugStub.Print("S3Initialize 00\n");
#endif
SysCtrlPort.Read8(); // Prepare to program the ATC
if (ActiveMode.ScreenWidth == 640) {
AtcOut(AtcAddrPort, new byte[] { 0x00,0x01,0x02,0x03,0x04,0x05,0x06,0x07,
0x08,0x09,0x0a,0x0b,0x0c,0x0d,0x0e,0x0f,
0x41,0x00,0x0f,0x00,0x00 } );
}
else {
AtcOut(AtcAddrPort, new byte[] { 0x00,0x01,0x02,0x03,0x04,0x05,0x14,0x07,
0x38,0x39,0x3a,0x3b,0x3c,0x3d,0x3e,0x3f,
0x01,0x00,0x0f,0x00,0x00 } );
}
#if DONT
DebugStub.Print("S3Initialize 8\n");
#endif
Wait_VSync();
//
// Wait for vertical sync to make sure that the display
// is not reactivated in the middle of a line/frame as suggested
// by the S3 errata sheet; not doing this causes the screen to
// flash momentarily.
//
SysCtrlPort.Read8(); // Set ATC FF to index
AtcAddrPort.Write8(0x20); // Enable the palette
CrtAddrPort.Write8(0x45); // Turn off H/W Graphics Cursor
bt=CrtDataPort.Read8();
bt &= 0xfe;
CrtDataPort.Write8(bt);
CrtAddrPort.Write16(0xff0e); // Set the graphic cursor foreground color
CrtAddrPort.Write16(0x000f); // Set the graphic cursor background color
CrtAddrPort.Write8(0x3a); // Set the Misc 1 reg
bt=CrtDataPort.Read8();
bt &= 0x62;
bt |= 0x15;
CrtDataPort.Write8(bt);
#if DONT
DebugStub.Print("S3Initialize 9\n");
#endif
CrtAddrPort.Write8(0x31); // Disable 2K X 1K X 4 plane
bt=CrtDataPort.Read8();
bt &= 0xe4;
bt |= 0x08;
CrtDataPort.Write8(bt);
CrtAddrPort.Write8(0x32); // Disable multiple pages
bt=CrtDataPort.Read8();
bt &= 0xbf;
CrtDataPort.Write8(bt);
MiscOutPort.Write8(0xef); // Set Misc out reg for external clock
/*Set_Oem_Clock(); // starts : Set the clock*/
int ul;
ul = ActiveMode.Clock;
CrtAddrPort.Write8(0x42);
CrtDataPort.Write8((byte) ul);
/*Set_Oem_Clock(); // ends : Set the clock*/
VideoPortStallExecution(0x400); // Wait for the clock to settle down
// S3 product alert Synchronization &
// Clock Skew.
#if DONT
DebugStub.Print("S3Initialize 10\n");
#endif
Wait_VSync();
Wait_VSync();
#if DONT
DebugStub.Print("S3Initialize 11\n");
#endif
SeqAddrPort.Write8(0x01);
bt = SeqDataPort.Read8();
bt &= 0xdf; //
SeqDataPort.Write8(bt);
VideoPortStallExecution(0x400); // Wait for about 1 millisecond
// for the monitor to settle down
// Turn on the screen at the DAC.
DacMaskPort.Write8(0xFF);
CrtAddrPort.Write16(0x0038); // Lock S3 specific regs
CrtAddrPort.Write16(0x0039); // Lock more S3 specific regs
// EOD
#if DONT
DebugStub.Print("S3Initialize 12\n");
#endif
Set864MemoryTiming();
#if DONT
DebugStub.Print("S3Initialize 13\n");
#endif
//////////////////////////////////////////////////////////////////
// Unlock the S3 registers, we need to unlock the registers a second
// time since the interpreter has them locked when it returns to us.
//
CrtAddrPort.Write16(0x4838);
CrtAddrPort.Write16(0xA039);
//////////////////////////////////////////////////////////////////
// Warm up the hardware for the new mode, and work around any
// BIOS bugs.
//
//
// Make sure 16-bit memory reads/writes are enabled.
//
CrtAddrPort.Write8(0x31);
bt = CrtDataPort.Read8();
bt |= 0x04;
CrtDataPort.Write8(bt);
#if DONT
DebugStub.Print("S3Initialize 16\n");
#endif
//
// Set the colours for the built-in S3 pointer.
//
CrtAddrPort.Write16(0xff0e);
CrtAddrPort.Write16(0x000f);
CrtAddrPort.Write8(0x45);
CrtDataPort.Read8();
CrtAddrPort.Write8(0x4A);
CrtDataPort.Write8(0xFF);
CrtDataPort.Write8(0xFF);
CrtDataPort.Write8(0xFF);
CrtDataPort.Write8(0xFF);
CrtAddrPort.Write8(0x45);
CrtDataPort.Read8();
CrtAddrPort.Write8(0x4B);
CrtDataPort.Write8(0x00);
CrtDataPort.Write8(0x00);
CrtDataPort.Write8(0x00);
CrtDataPort.Write8(0x00);
#if DONT
DebugStub.Print("S3Initialize 17\n");
#endif
//
// Some BIOSes don't disable linear addressing by default, so
// make sure we do it here.
//
WaitForGpuIdle();
//
// Enable the Graphics engine.
//
CrtAddrPort.Write8(0x40);
bt = CrtDataPort.Read8();
bt |= 0x01;
CrtDataPort.Write8(bt);
} // end S3Initialize()
static public void set_640x60Hz_16bpp(S3Device! self)
{
self.set_640x60Hz_16bpp();
}
private void IndxOut(IoPort! port, byte beg, byte[]! values)
{
for (ushort i = 0; i < values.Length; i++) {
port.Write16((ushort)(beg + i + ((ushort)values[i] << 8)));
}
}
private void IndxOut(IoPort! port, byte[]! values)
{
IndxOut(port, 0, values);
}
private void AtcOut(IoPort! port, byte[]! values)
{
for (byte i = 0; i < values.Length; i++) {
port.Write8(i);
port.Write8(values[i]);
}
}
//
// VGA indexed register indexes.
//
private const byte GRAPH_SET_REG = 0;
private const byte GRAPH_ENABLE_REG = 1;
private const byte GRAPH_COMPARE_REG = 2;
private const byte GRAPH_OPERATION_REG = 3;
private const byte GRAPH_READSEL_REG = 4;
private const byte GRAPH_MODE_REG = 5;
private const byte GRAPH_MISC_REG = 6;
private const byte GRAPH_DONTCARE_REG = 7;
private const byte GRAPH_BITMASK_REG = 8;
//
private void VgaTextMode()
{
WaitForGpuIdle();
// Turn off the screen at the DAC.
DacMaskPort.Write8(0x00);
// SetHWMode: S3 VGA
CrtAddrPort.Write16(0x4838); // Unlock the S3 regs
CrtAddrPort.Write16(0xa539); // Unlock the SC regs
CrtAddrPort.Write8(0x40); // Enable the S3 graphics engine
byte bt = CrtDataPort.Read8();
bt &= 0xfe;
bt |= 0x01;
CrtDataPort.Write8(bt);
AdvCtrlPort.Write16(0x0000); // reset to normal VGA operation
CrtAddrPort.Write8(0x40); // Disable the S3 graphics engine
bt = CrtDataPort.Read8();
bt &= 0xfe;
CrtDataPort.Write8(bt);
CrtAddrPort.Write8(0x31); // Memory Control
bt=CrtDataPort.Read8();
bt &= 0x75;
bt |= 0x85;
CrtDataPort.Write8(bt);
CrtAddrPort.Write8(0x32); // Backward Compat 1
bt=CrtDataPort.Read8();
bt &= 0x40;
CrtDataPort.Write8(bt);
CrtAddrPort.Write16(0x0033); // Backward Compat 2
CrtAddrPort.Write16(0x0034); // Backward Compat 3
CrtAddrPort.Write16(0x0035); // CRTC Lock
CrtAddrPort.Write8(0x3a); // S3 Misc 1
bt=CrtDataPort.Read8();
bt &= 0x88;
bt |= 0x05;
CrtDataPort.Write8(bt);
CrtAddrPort.Write16(0x5a3b); // Data Transfer Exec Pos
CrtAddrPort.Write16(0x103c); // Interlace Retrace start
CrtAddrPort.Write16(0x0043); // Extended Mode
CrtAddrPort.Write16(0x0045); // HW graphics Cursor Mode
CrtAddrPort.Write16(0x0046); // HW graphics Cursor Orig x
CrtAddrPort.Write16(0xff47); // HW graphics Cursor Orig x
CrtAddrPort.Write16(0xfc48); // HW graphics Cursor Orig y
CrtAddrPort.Write16(0xff49); // HW graphics Cursor Orig y
CrtAddrPort.Write16(0xff4a); // HW graphics Cursor Orig y
CrtAddrPort.Write16(0xff4b); // HW graphics Cursor Orig y
CrtAddrPort.Write16(0xff4c); // HW graphics Cursor Orig y
CrtAddrPort.Write16(0xff4d); // HW graphics Cursor Orig y
CrtAddrPort.Write16(0xff4e); // Dsp Start x pixel pos
CrtAddrPort.Write16(0xdf4d); // Dsp Start y pixel pos
CrtAddrPort.Write8(0x42); // MODE-CNTL
bt=CrtDataPort.Read8();
bt &= 0xdf;
CrtDataPort.Write8(bt);
// Disable linear addressing.
CrtAddrPort.Write8(0x58);
bt = CrtDataPort.Read8();
bt &= 0xEC;
CrtDataPort.Write8(bt);
// start sync reset program up sequencer
IndxOut(SeqAddrPort, new byte[] { 0x01,0x00,0x03,0x00,0x03 } );
MiscOutPort.Write8(0x67);
GraphAddrPort.Write16(0x0e06);
// EndSyncResetCmd
SeqAddrPort.Write16(0x0300);
// Unlock the CTC registers.
CrtAddrPort.Write16(0x0E11);
// Unlocked the extended registers.
CrtAddrPort.Write16(0x4838);
CrtAddrPort.Write16(0xA039);
// program crtc registers
IndxOut(CrtAddrPort, new byte[] { 0x5F,0x4f,0x50,0x82,0x55,0x81,0xbf,0x1f,
0x00,0x47,0x06,0x07,0x00,0x00,0x01,0x40,
0x9c,0x0e,0x8f,0x28,0x1f,0x96,0xb9,0xa3,
0xFF } );
IndxOut(CrtAddrPort, 0x30, new byte[] {0xe1,0x85,0x00,0x00,
0x00,0x00,0x02,0x00,
0x48,0xa0,0x05,0x5a,
0x10 } );
IndxOut(CrtAddrPort, 0x40, new byte[] {0x08,0x00,0x08,0x00 } );
CrtAddrPort.Write16(0xff4d);
IndxOut(CrtAddrPort, 0x50, new byte[] {0x00,0x00,0x00,0x00,
0x38,0x00,0x00,0x00,
0xc0,0xf8,0x00,0x00,
0x80,0x00,0x00,0x00,
0x07,0x00,0xa1,0x00,
0x00,0x00,0x00,0x00, } );
// prepare atc for writing
SysCtrlPort.Read8();
AtcOut(AtcAddrPort, new byte[] { 0x00,0x01,0x02,0x03,0x04,0x05,0x14,0x07,
0x38,0x39,0x3a,0x3b,0x3c,0x3d,0x3e,0x3f,
0x04,0x00,0x0F,0x08,0x00 } );
// program graphics controller registers
IndxOut(GraphAddrPort, new byte[] { 0x00,0x00,0x00,0x00,0x00,0x10,0x0e,0x00,0xff});
// Reload the font.
LoadFont(Fonts.Font8);
// Turn on the screen at the DAC.
DacMaskPort.Write8(0xFF);
// Lock the CTC registers.
CrtAddrPort.Write16(0x8E11);
// prepare atc for writing
SysCtrlPort.Read8();
AtcAddrPort.Write8(0x20);
}
private void LoadFont(byte[]! font)
{
// Enable A000 Data
SeqAddrPort.Write16(0x0100);
GraphAddrPort.Write16(0x0204); // Read Map = plane 2
GraphAddrPort.Write16(0x0005); // Graphics Mode = read mode 0, write mode 0
GraphAddrPort.Write16(0x0406); // A0000 for 64K, not odd/even,
SeqAddrPort.Write16(0x0402); // Map Mask = write to plane 2 only
SeqAddrPort.Write16(0x0404); // Memory Mode = not odd/even, not full memory
SeqAddrPort.Write16(0x0300); // end sync reset
int height = font.Length / 256;
for (int i = 0; i < 256; i++) {
for (int j = 0; j < height; j++) {
fontBuffer.Write8(32 * i + j, font[height * i + j]);
}
}
// Disable A000 Color
SeqAddrPort.Write16(0x0100);
GraphAddrPort.Write16(0x0004);
GraphAddrPort.Write16(0x1005);
GraphAddrPort.Write16(0x0E06);
SeqAddrPort.Write16(0x0302);
SeqAddrPort.Write16(0x0204);
SeqAddrPort.Write16(0x0300); // end sync reset
}
public void set_640x60Hz_16bpp()
{
CrtAddrPort.Write16(0xbe3b); // Data Xfer Execution Position reg
CrtAddrPort.Write16(0x1034); // S3R4 - Backwards Compatibility 3
IndxOut(CrtAddrPort, new byte[] {
0xc3,0x9f,0xa0,0x04,0xa8,0x80,0x0b,0x3e,
0x00,0x40,0x00,0x00,0x00,0x00,0x00,0x00,
0xea,0x0c,0xdf,0x00,0x60,0xe7,0x04,0xab,
0xff } );
CrtAddrPort.Write8(0x51); // overflow bits for CR13
byte bt=CrtDataPort.Read8();//setting 4th bit , resetting 5,6 & 7 th bit
bt &= 0x0f; // bit 5,4 = 01
bt |= 0x10;
CrtDataPort.Write8(bt);
CrtAddrPort.Write16(0x005d);
CrtAddrPort.Write16(0x005e);
CrtAddrPort.Write16(0x1050); // 16 bit pixel length
CrtAddrPort.Write16(0x5067); // mode 10: 16 bit color, 1 VCLK/pixel
CrtAddrPort.Write16(0x026d); // recover pixel on right hand edge in 16 bpp mode
}
static public void set_800x60Hz_16bpp(S3Device! self)
{
self.set_800x60Hz_16bpp();
}
public void set_800x60Hz_16bpp()
{
CrtAddrPort.Write16(0xfe3b); // Data Xfer Execution Position reg
CrtAddrPort.Write16(0x1034); // S3R4 - Backwards Compatibility 3
IndxOut(CrtAddrPort, new byte[] {
0x03,0xc7,0xc8,0x84,0xd4,0x14,0x74,0xf0,
0x00,0x60,0x00,0x00,0x00,0x00,0x00,0x00,
0x58,0x0c,0x57,0xc8,0x00,0x57,0x73,0xe3,
0xff } );
CrtAddrPort.Write8(0x51); // overflow bits for CR13
byte bt=CrtDataPort.Read8(); // resetting 4,5,6 & 7 th bit
bt &= 0x0f; // bit 5,4 = 00
CrtDataPort.Write8(bt);
CrtAddrPort.Write16(0x015d);
CrtAddrPort.Write16(0x005e);
CrtAddrPort.Write16(0x9050); // 16 bit pixel length
CrtAddrPort.Write16(0x5067); // mode 10: 16 bit color, 1 VCLK/pixel
CrtAddrPort.Write16(0x026d); // recover pixel on right hand edge in 16 bpp mode
}
static public void set_1024x60Hz_16bpp(S3Device! self)
{
self.set_1024x60Hz_16bpp();
}
public void set_1024x60Hz_16bpp()
{
CrtAddrPort.Write16(0x0034); // S3R4 - Backwards Compatibility 3
IndxOut(CrtAddrPort, new byte[] {
0x4b,0xff,0x00,0x8c,0x08,0x8a,0x25,0xf5,
0x00,0x60,0x00,0x00,0x00,0x00,0x00,0x00,
0x02,0x0f,0xff,0x00,0x60,0xff,0x21,0xeb,
0xff } );
CrtAddrPort.Write8(0x51); // overflow bits for CR13
byte bt=CrtDataPort.Read8();//setting 4th bit , resetting 5,6 & 7 th bit
bt &= 0x0f; // bit 5,4 = 01
bt |= 0x10;
CrtDataPort.Write8(bt);
CrtAddrPort.Write16(0x355d);
CrtAddrPort.Write16(0x005e);
CrtAddrPort.Write16(0x1050); // 16 bit pixel length
CrtAddrPort.Write16(0x5067); // mode 10: 16 bit color, 1 VCLK/pixel
CrtAddrPort.Write16(0x026d); // recover pixel on right hand edge in 16 bpp mode
}
// Wait for the vertical blanking interval on the chip.
public void Wait_VSync()
{
byte bt;
// It's possible that this routine will get called
// when the 911 is in a zombie state, meaning there is no
// vertical sync being generated. This is why we have some long
// time out loops here.
// First wait for getting into vertical blanking.
for (int i = 0; i < 0x100000; i++) {
if ((SysCtrlPort.Read8() & 0x08)!=0) {
break;
}
}
//
// We are either in a vertical blanking interval or we have timed out.
// Wait for the Vertical display interval.
// This is done to make sure we exit this routine at the beginning
// of a vertical blanking interval, and not in the middle or near
// the end of one.
//
for (int i = 0; i < 0x100000; i++) {
if ((SysCtrlPort.Read8() & 0x08)==0) {
break;
}
}
//
// Now wait to get into the vertical blank interval again.
//
for (int i = 0; i < 0x100000; i++) {
if ((SysCtrlPort.Read8() & 0x08)!=0) {
break;
}
}
}
public bool Set864MemoryTiming()
/*++
Routine Description:
Sets L, M and N timing parameters, also sets and enables the
Start Display FIFO register
Arguments:
None
Return Value:
TRUE if success, FALSE if failure
--*/
{
int MIndex, ScreenWidth, failure = 0;
ushort data16;
byte data8;
//
// unlock registers
//
CrtAddrPort.Write16(0x4838);
CrtAddrPort.Write16(0xA039);
//
// make sure this is an 864
//
CrtAddrPort.Write8(0x30);
data8 = CrtDataPort.Read8();
if ((data8 & 0xf0) != 0xc0)
failure = 1;
//
// make sure there is an entry in the M parameter table for this mode
//
MIndex = (AdapterMemorySize < 0x200000) ? 0 : 12;
switch (ActiveMode.ScreenWidth)
{
case 640:
MIndex += 0;
break;
case 800:
MIndex += 4;
break;
case 1024:
MIndex += 8;
break;
default:
failure = 1;
break;
}
switch (ActiveMode.BytesPerPixel)
{
case 1:
MIndex += 0;
break;
case 2:
MIndex += 2;
break;
default:
failure = 1;
break;
}
switch (ActiveMode.ScreenFrequency)
{
case 60:
MIndex += 0;
break;
case 72:
MIndex += 1;
break;
default:
failure = 1;
break;
}
if (failure!=0)
{
return false;
}
//
// set and enable L parameter, 1 Mb frame buffer configurations are
// restricted to a 32 bit data path and therefore make twice as many
// transfers
//
ScreenWidth = ActiveMode.ScreenWidth;
if (AdapterMemorySize < 0x200000)
data16 = (ushort) ((ScreenWidth * ActiveMode.BytesPerPixel) / 4);
else
data16 = (ushort) ((ScreenWidth * ActiveMode.BytesPerPixel) / 8);
CrtAddrPort.Write8(0x62);
CrtDataPort.Write8((byte) (data16 & 0xff));
data16 = (ushort)((data16 >> 8) & 0x07);
CrtAddrPort.Write8(0x61);
CrtDataPort.Write8((byte) ((data16 & 0x07) | 0x80));
//
// set Start Display FIFO register
//
CrtAddrPort.Write8(0x5d);
data8 = CrtDataPort.Read8();
data16 =(ushort) (data8 & 0x01);
data16 <<= 8;
CrtAddrPort.Write8(0x00);
data8 = CrtDataPort.Read8();
data16 |= data8;
data16 -= 5; // typical CR3B is CR0 - 5 (with extension bits)
CrtAddrPort.Write8(0x3b);
CrtDataPort.Write8((byte) (data16 & 0xff));
CrtAddrPort.Write8(0x5d);
data8 = CrtDataPort.Read8();
data8 &= 0xbf;
data8 = (byte)(data8 | (byte) ((data16 & 0x100) >> 2));
CrtDataPort.Write8(data8);
//
// enable Start Display FIFO register
//
CrtAddrPort.Write8(0x34);
data8 = CrtDataPort.Read8();
data8 |= 0x10;
CrtDataPort.Write8(data8);
//
// set M parameter
//
CrtAddrPort.Write8(0x54);
CrtDataPort.Write8((byte) MParameterTable[MIndex]);
//
// set N parameter
//
CrtAddrPort.Write8(0x60);
CrtDataPort.Write8((byte) 0xff);
return true;
}
public void Plot(int x, int y, RGB color)
{
if (!Ready) {
return;
}
int offset = y * ActiveMode.ScreenStride + x * ActiveMode.BytesPerPixel;
// The read triggers the latch register.
screenBuffer.Write16(offset, (ushort)color);
}
public void Fill(int x1, int y1, int x2, int y2, RGB color)
{
if (!Ready) {
return;
}
if (x1 < 0 || x1 >= ActiveMode.ScreenWidth ||
x2 < 0 || x2 >= ActiveMode.ScreenWidth ||
y1 < 0 || y1 >= ActiveMode.ScreenHeight ||
y2 < 0 || y2 >= ActiveMode.ScreenHeight)
{
throw new OverflowException("Draw bounds invalid.");
}
ushort clr = (ushort)color;
int pDst = y1 * ActiveMode.ScreenStride + x1 * ActiveMode.BytesPerPixel;
for (int y = y1; y <= y2; y++)
{
screenBuffer.Write16(pDst, clr, x2 - x1 + 1);
pDst += ActiveMode.ScreenStride;
}
}
public void BitBltChr(int x, int y, int width, int height,
byte[]! buffer, int offset, int ScanWidth,
RGB color, RGB background)
{
if (!Ready) {
return;
}
ushort clr = (ushort)color;
ushort bkg = (ushort)background;
int pSrc = offset;
int pDst = (y + height - 1) * ActiveMode.ScreenStride + x * ActiveMode.BytesPerPixel;
for (int j = 0; j < height; j++)
{
int pSrcTemp = pSrc;
for (int i = 0; i < width;)
{
byte b = buffer[pSrcTemp++];
lineBuffer[i++] = ((b & 0x80) != 0) ? clr : bkg;
lineBuffer[i++] = ((b & 0x40) != 0) ? clr : bkg;
lineBuffer[i++] = ((b & 0x20) != 0) ? clr : bkg;
lineBuffer[i++] = ((b & 0x10) != 0) ? clr : bkg;
lineBuffer[i++] = ((b & 0x08) != 0) ? clr : bkg;
lineBuffer[i++] = ((b & 0x04) != 0) ? clr : bkg;
lineBuffer[i++] = ((b & 0x02) != 0) ? clr : bkg;
lineBuffer[i++] = ((b & 0x01) != 0) ? clr : bkg;
}
screenBuffer.Write16(pDst, lineBuffer, 0, width);
pSrc += ScanWidth;
pDst -= ActiveMode.ScreenStride;
}
}
private void BitBlt24(int x, int y, int width, int height,
byte[]! in ExHeap buffer, int offset, int ScanWidth)
{
int pDst = (y + height - 1) * ActiveMode.ScreenStride + x * ActiveMode.BytesPerPixel;
int pSrc = offset;
byte[] raw = new byte[ScanWidth];
for (int j = 0; j < height; j++)
{
int pRaw = 0;
// Decompress first
while (pRaw < ScanWidth)
{
ushort len = (ushort)(buffer[pSrc] + ((ushort)buffer[pSrc+1] << 8));
pSrc += 2;
short val = unchecked((short)len);
if (val < 0)
{
for (int i = 0; i > val; i--)
{
raw[pRaw++] = buffer[pSrc+0];
raw[pRaw++] = buffer[pSrc+1];
raw[pRaw++] = buffer[pSrc+2];
}
pSrc += 3;
}
else
{
for (int i = 0; i < val; i++)
{
raw[pRaw++] = buffer[pSrc++];
}
}
}
// Now draw the decompressed bits.
pRaw = 0;
for (int i = 0; i < width;)
{
lineBuffer[i++] = RGB.Compute16(raw[pRaw+2],
raw[pRaw+1],
raw[pRaw+0]);
pRaw += 3;
}
screenBuffer.Write16(pDst, lineBuffer, 0, width);
pDst -= ActiveMode.ScreenStride;
}
}
private void BitBlt8(int x, int y, int width, int height,
byte[]! in ExHeap buffer, int offset, int ScanWidth,
ushort[]! palette)
{
int pDst = (y + height - 1) * ActiveMode.ScreenStride + x * ActiveMode.BytesPerPixel;
int pSrc = offset;
for (int j = 0; j < height; j++)
{
int pSrcTemp = pSrc;
for (int i = 0; i < width;)
{
lineBuffer[i++] = palette[buffer[pSrcTemp++]];
}
screenBuffer.Write16(pDst, lineBuffer, 0, width);
pSrc += ScanWidth;
pDst -= ActiveMode.ScreenStride;
}
}
private void BitBlt4(int x, int y, int width, int height,
byte[]! in ExHeap buffer, int offset, int ScanWidth,
ushort[]! palette)
{
int pDst = (y + height - 1) * ActiveMode.ScreenStride + x * ActiveMode.BytesPerPixel;
int pSrc = offset;
for (int j = 0; j < height; j++)
{
int pSrcTemp = pSrc;
for (int i = 0; i < width;)
{
byte b = buffer[pSrcTemp++];
lineBuffer[i++] = palette[b >> 4];
lineBuffer[i++] = palette[b & 0xf];
}
screenBuffer.Write16(pDst, lineBuffer, 0, width);
pSrc += ScanWidth;
pDst -= ActiveMode.ScreenStride;
}
}
public void BitBlt1(int x, int y, int width, int height,
byte[]! in ExHeap buffer, int offset, int ScanWidth,
RGB color, RGB background)
{
if (!Ready) {
return;
}
ushort clr = (ushort)color;
ushort bkg = (ushort)background;
int pSrc = offset;
int pDst = (y + height - 1) * ActiveMode.ScreenStride + x * ActiveMode.BytesPerPixel;
for (int j = 0; j < height; j++)
{
int pSrcTemp = pSrc;
for (int i = 0; i < width;)
{
byte b = buffer[pSrcTemp++];
lineBuffer[i++] = ((b & 0x80) != 0) ? clr : bkg;
lineBuffer[i++] = ((b & 0x40) != 0) ? clr : bkg;
lineBuffer[i++] = ((b & 0x20) != 0) ? clr : bkg;
lineBuffer[i++] = ((b & 0x10) != 0) ? clr : bkg;
lineBuffer[i++] = ((b & 0x08) != 0) ? clr : bkg;
lineBuffer[i++] = ((b & 0x04) != 0) ? clr : bkg;
lineBuffer[i++] = ((b & 0x02) != 0) ? clr : bkg;
lineBuffer[i++] = ((b & 0x01) != 0) ? clr : bkg;
}
screenBuffer.Write16(pDst, lineBuffer, 0, width);
pSrc += ScanWidth;
pDst -= ActiveMode.ScreenStride;
}
}
public void BitBltBmp(int x, int y, byte[]! in ExHeap buffer)
{
if (!Ready) {
return;
}
BITMAPFILEHEADER bfh;
BITMAPINFOHEADER bih;
int lDelta;
int cbScanLine;
int used;
int offset = 0;
bfh = BITMAPFILEHEADER.Read(buffer, offset, out used);
bih = BITMAPINFOHEADER.Read(buffer, used, out used);
RGB[] Palette = bih.ReadPalette(buffer, used, out used);
if (bih.biWidth == 0 || bih.biHeight == 0)
{
return;
}
if (x < 0)
{
x = ActiveMode.ScreenWidth + x - bih.biWidth;
}
if (y < 0)
{
y = ActiveMode.ScreenHeight + y - bih.biHeight;
}
if (x < 0 || x + bih.biWidth > ActiveMode.ScreenWidth ||
y < 0 || y + bih.biHeight > ActiveMode.ScreenHeight)
{
throw new OverflowException("Draw bounds invalid.");
}
offset = offset + bfh.bfOffBits;
used = offset;
ushort[] palette = null;
if (Palette != null)
{
palette = new ushort [Palette.Length];
for (int i = 0; i < Palette.Length; i++)
{
palette[i] = (ushort)Palette[i];
}
}
//
// Make sure this is a 1bpp, 4bpp, or 8bpp bitmap.
//
if (bih.biPlanes != 1)
{
DebugStub.Print("biPlanes != 1");
return;
}
cbScanLine = (((bih.biWidth * bih.biBitCount) + 31) & ~31) / 8;
if (bih.biHeight < 0)
{
DebugStub.Print("bih.biHeight = {0} < 0\n",
__arglist(bih.biHeight));
return;
}
#if DONT
if (used + cbScanLine * bih.biHeight > buffer.Length) {
DebugStub.Print("{0} + {1} * {2} = {3} > {4}\n",
__arglist(used,
cbScanLine,
bih.biHeight,
used + cbScanLine * bih.biHeight,
buffer.Length));
throw new OverflowException("Bitmap invalid.");
}
#endif
if (bih.biBitCount == 1)
{
BitBlt1(x, y, bih.biWidth, bih.biHeight, buffer, offset, cbScanLine,
RGB.White, RGB.Black);
}
else if (bih.biBitCount == 4)
{
assert palette != null;
BitBlt4(x, y, bih.biWidth, bih.biHeight, buffer, offset, cbScanLine,
palette);
}
else if (bih.biBitCount == 8)
{
assert palette != null;
BitBlt8(x, y, bih.biWidth, bih.biHeight, buffer, offset, cbScanLine,
palette);
}
else if (bih.biBitCount == 24)
{
BitBlt24(x, y, bih.biWidth, bih.biHeight, buffer, offset, cbScanLine);
}
else
{
//
// We don't support this type of bitmap.
//
DebugStub.Print("((bih.biBitCount * bih.biPlanes) <= 4");
}
}
public void BitBltPng(int x, int y, byte[]! in ExHeap buffer)
{
DebugStub.Print("BitBltPng not supported currently.\n");
}
public void Scroll(int x1, int y1, int x2, int y2, int CharHeight)
{
if (!Ready) {
return;
}
if (x1 < 0 || x1 >= ActiveMode.ScreenWidth ||
x2 < 0 || x2 >= ActiveMode.ScreenWidth ||
y1 < 0 || y1 >= ActiveMode.ScreenHeight ||
y2 < 0 || y2 >= ActiveMode.ScreenHeight ||
y2 - y1 < CharHeight)
{
throw new OverflowException("Draw bounds invalid.");
}
int width = x2 - x1 + 1;
int pDst = y1 * ActiveMode.ScreenStride + x1 * ActiveMode.BytesPerPixel;
int pSrc = pDst + ActiveMode.ScreenStride * CharHeight;
for (int i = y1; i <= y2 - CharHeight; i++)
{
screenBuffer.Copy16(pSrc, pDst, width);
pDst += ActiveMode.ScreenStride;
pSrc += ActiveMode.ScreenStride;
}
}
}
public class SvgaWindow
{
private readonly S3Device screen;
private readonly int regionLeft;
private readonly int regionTop;
private readonly int regionRight;
private readonly int regionBottom;
private int cursorX = 0;
private int cursorY = 0;
private bool cursorVisible = true;
private bool cursorView = true;
private RGB foreColor = RGB.White;
private RGB backColor = RGB.Black;
public const int FONT_HEIGHT = 12;
public const int FONT_WIDTH = 8;
[NotDelayed]
public SvgaWindow(S3Device! screen, int x1, int y1, int x2, int y2)
requires x1 < x2 && y1 < y2;
{
this.screen = screen;
regionLeft = x1;
regionTop = y1;
regionRight = x2;
regionBottom = y2;
cursorX = regionLeft;
cursorY = regionTop;
screen.Fill(regionLeft, regionTop, regionRight, regionBottom, backColor);
}
public void Initialize()
{
}
public void Finalize()
{
}
public void SetTextColor(RGB color, RGB background)
{
foreColor = color;
backColor = background;
}
public int TextColumn
{
get { return (cursorX - regionLeft) / FONT_WIDTH; }
}
public int TextRow
{
get { return (cursorY - regionTop) / FONT_HEIGHT; }
}
public bool SetTextCursor(int column, int row)
{
if (column >= 0 && column < TextColumns &&
row >= 0 && row < TextRows) {
bool wasVisible = cursorVisible;
CursorHide();
cursorX = regionLeft + column * FONT_WIDTH;
cursorY = regionTop + row * FONT_HEIGHT;
if (wasVisible) {
CursorShow();
}
return true;
}
return false;
}
public int TextColumns
{
get { return (regionRight - regionLeft) / FONT_WIDTH; }
}
public int TextRows
{
get { return (regionBottom - regionTop) / FONT_HEIGHT; }
}
private void DrawCursor()
{
cursorView = true;
CursorFlash();
}
public void CursorHide()
{
cursorView = false;
CursorFlash();
cursorVisible = false;
}
public void CursorShow()
{
cursorVisible = true;
DrawCursor();
}
public void CursorFlash()
{
if (cursorVisible) {
int x = cursorX;
int y = cursorY;
if (x + FONT_WIDTH > regionRight) {
x -= FONT_WIDTH;
}
if (cursorView) {
screen.BitBltChr(x, y, FONT_WIDTH, FONT_HEIGHT,
Fonts.FontData, 256 * FONT_HEIGHT, 1, foreColor, backColor);
}
else {
screen.BitBltChr(x, y, FONT_WIDTH, FONT_HEIGHT,
Fonts.FontData, 32 * FONT_HEIGHT, 1, foreColor, backColor);
}
cursorView = !cursorView;
}
}
public void Clear()
{
screen.Fill(regionLeft, regionTop, regionRight, regionBottom, backColor);
cursorX = regionLeft;
cursorY = regionTop;
DrawCursor();
}
public void ClearCursorToEndOfLine()
{
screen.Fill(cursorX, cursorY,
regionRight, cursorY + FONT_HEIGHT,
backColor);
}
public void Write(String! s)
{
for (int i = 0; i < s.Length; i++) {
Write((byte)s[i]);
}
DrawCursor();
}
public void Write(char[]! in ExHeap buffer, int offset, int count)
{
while (count-- > 0) {
Write((byte)buffer[offset++]);
}
DrawCursor();
}
public void PutChar(char c)
{
Write((byte)c);
DrawCursor();
}
public bool PutCharAt(char c, int column, int row)
{
if (column >= 0 && column < TextColumns &&
row >= 0 && row < TextRows) {
screen.BitBltChr(regionLeft + column * FONT_WIDTH,
regionTop + row * FONT_HEIGHT,
FONT_WIDTH, FONT_HEIGHT,
Fonts.FontData, c * FONT_HEIGHT, 1,
foreColor, backColor);
return true;
}
return false;
}
private void Write(byte c)
{
switch (c) {
case (byte)'\n':
cursorY += FONT_HEIGHT;
cursorX = regionLeft;
break;
case (byte)'\r':
screen.Fill(cursorX, cursorY, regionRight,
cursorY + FONT_HEIGHT,
backColor);
cursorX = regionLeft;
break;
case (byte)'\b':
CursorHide();
cursorX = cursorX - FONT_WIDTH;
CursorShow();
break;
default:
screen.BitBltChr(cursorX, cursorY, FONT_WIDTH, FONT_HEIGHT,
Fonts.FontData, c * FONT_HEIGHT, 1, foreColor, backColor);
cursorX += FONT_WIDTH;
break;
}
if (cursorX + FONT_WIDTH > regionRight) {
cursorY += FONT_HEIGHT;
cursorX = regionLeft;
}
if (cursorY + FONT_HEIGHT > regionBottom) {
screen.Scroll(regionLeft, regionTop, regionRight, regionBottom,
FONT_HEIGHT);
cursorY = cursorY - FONT_HEIGHT;
screen.Fill(regionLeft, cursorY, regionRight, regionBottom, backColor);
}
}
}
}