/// <summary>
/// Calculates the code for the Brightness HDMA with the desired channel, Table and possibly SA-1 compatible
/// </summary>
/// <param name="channel"></param>
/// <param name="table"></param>
/// <param name="sa1"></param>
/// <returns></returns>
public override string Code(int channel, HDMATable table, bool sa1)
{
DMAMode mode = (table[0].Values.Length == 1 ? DMAMode.P : DMAMode.PP);
ASMCodeBuilder code = new ASMCodeBuilder();
int channelAdd = 16 * channel;
table.Name = ".BrightTable";
code.AppendLabel(INITLabel, "Code to be inserted INIT");
code.OpenNewBlock();
code.AppendCode("\tREP #$20", "16 bit mode");
code.AppendCode("\tLDA #$" + (((Registers.Brightness & 0xFF) << 8) + (int)mode).ToString("X4"));
code.AppendCode("\tSTA $" + (Registers.DMAMode + channelAdd).ToString("X4"));
code.AppendCode("\tLDA #" + table.Name, "load high and low byte of table address");
code.AppendCode("\tSTA $" + (Registers.DMALowByte + channelAdd).ToString("X4"));
code.AppendCode("\tSEP #$20", "back to 8 bit mode");
code.AppendCode("\tLDA.b #" + table.Name + ">>16", "load bank byte of table address");
code.AppendCode("\tSTA $" + (Registers.DMABankByte + channelAdd).ToString("X4"));
code.AppendCode("\tLDA #$" + (1 << channel).ToString("X2"));
code.AppendCode("\tTSB $" + RAM.HDMAEnable[sa1].ToString("X4"), "enable HDMA channel " + channel);
code.AppendCode("\tRTS");
code.CloseBlock();
code.AppendEmptyLine();
code.AppendTable(table);
return(code.ToString());
}
public static bool Merge(HDMATable Table1, HDMATable Table2, out HDMATable Merged)
{
Merged = null;
if (Table1.Count != Table2.Count)
{
return(false);
}
if (Table1.SequenceEqual(Table2, new HDMATableEntryComparer()))
{
Merged = new HDMATable();
for (int i = 0; i < Table1.Count; i++)
{
List <byte> values = new List <byte>();
values.AddRange(Table1[i].Values);
values.AddRange(Table2[i].Values);
Merged.Add(new HDMATableEntry(TableValueType.db, Table1[i].Scanlines, values.ToArray()));
}
if (!Merged.HasEnded())
{
Merged.Add(HDMATableEntry.End);
}
return(true);
}
return(false);
}
/// <summary>
/// Calculates the code for overlapping multiple brightness gradients.
/// <para>The final code will use the channel of the first BrightnessHDMA object passed.</para>
/// </summary>
/// <param name="hdma">An array of BrightnessHDMA object that will be overlapped for the final code.</param>
/// <returns>The final code.</returns>
public static string MultiCode(params BrightnessHDMA[] hdma)
{
if (hdma == null || hdma.Length == 0)
{
return(null);
}
int channel = hdma[0].Channel;
EffectClasses.HDMATable table = new HDMATable(".BrightTable");
using (Bitmap b = BitmapEffects.OverlapImages(hdma.Select(h => h.EffectImage).ToArray()))
{
byte scanlines = 1;
int now = 0;
int compare = 0x0F - (b.GetPixel(0, 0).A / 17);
for (int y = 1; y < b.Height; y++, scanlines++)
{
now = 0x0F - (b.GetPixel(0, y).A / 17);
if (compare != now || scanlines >= 0x80)
{
table.Add(new HDMATableEntry(TableValueType.db, scanlines, (byte)compare));
compare = now;
scanlines = 0;
}
}
if (table.TotalScanlines != Scanlines)
{
table.Add(new HDMATableEntry(TableValueType.db, scanlines, (byte)now));
}
table.Add(HDMATableEntry.End);
DMAMode mode = (table[0].Values.Length == 1 ? DMAMode.P : DMAMode.PP);
ASMCodeBuilder code = new ASMCodeBuilder();
int channelAdd = 16 * channel;
table.Name = ".BrightTable";
code.AppendLabel(INITLabel, "Code to be inserted INIT");
code.OpenNewBlock();
code.AppendCode("\tREP #$20", "16 bit mode");
code.AppendCode("\tLDA #$" + (((Registers.Brightness & 0xFF) << 8) + (int)mode).ToString("X4"));
code.AppendCode("\tSTA $" + (Registers.DMAMode + channelAdd).ToString("X4"));
code.AppendCode("\tLDA #" + table.Name, "load high and low byte of table address");
code.AppendCode("\tSTA $" + (Registers.DMALowByte + channelAdd).ToString("X4"));
code.AppendCode("\tSEP #$20", "back to 8 bit mode");
code.AppendCode("\tLDA.b #" + table.Name + ">>16", "load bank byte of table address");
code.AppendCode("\tSTA $" + (Registers.DMABankByte + channelAdd).ToString("X4"));
code.AppendCode("\tLDA #$" + (1 << channel).ToString("X2"));
code.AppendCode("\tTSB $" + RAM.HDMAEnable[RAM.SA1].ToString("X4"), "enable HDMA channel " + channel);
code.AppendCode("\tRTS");
code.CloseBlock();
code.AppendEmptyLine();
code.AppendTable(table);
return(code.ToString());
}
}
public PixelationHDMA()
{
Values = new List <PixelScanline>();
Table = new HDMATable(".PixelTable");
ColorMath = new ColorMath();
OriginalImages = new BitmapCollection();
}
public void AppendTable(HDMATable table)
{
AppendLabel(table.Name);
foreach (var entry in table)
{
AppendCode(entry.ToString());
}
}
public void FromTable(HDMATable table)
{
if (!table.HasEnded())
{
table.Add(HDMATableEntry.End);
}
Table = table;
UpdateImage();
}
/// <summary>
/// Draws the image and sets the internal table based on a string array.
/// Returns every line that couldn't be translated.
/// </summary>
/// <param name="Lines">The lines that will be turned into an image</param>
/// <param name="eightBit">Whether the values should be interpreted as 8 or 5 bit.</param>
/// <returns>An array of error containing lines.</returns>
public string[] FromString(string[] Lines, bool eightBit)
{
Table = new HDMATable();
List <string> errorLines = new List <string>();
foreach (string s in Lines)
{
try
{
string[] values = s.Split(", ".ToCharArray(), StringSplitOptions.RemoveEmptyEntries);
if (values.Length < 2)
{
throw new ArgumentException("Too few arguments.");
}
byte[] bytes = new byte[values.Length - 1];
for (int i = 1; i < values.Length; i++)
{
if (!eightBit)
{
bytes[i - 1] = (byte)((byte)ColorEffect | (0x1F & values[i].ToHexInt()));
}
else
{
bytes[i - 1] = (byte)((byte)ColorEffect | values[i].ToHexInt() / 8);
}
}
if (bytes.Any(b => b < (byte)ColorEffect))
{
throw new Exception("Wrong Convertion");
}
Table.Add(new HDMATableEntry(TableValueType.db, (byte)values[0].ToHexInt(), bytes));
if (Table.TotalScanlines > Scanlines)
{
break;
}
}
catch (Exception ex)
{
#if (DEBUG)
Console.WriteLine("ColorHDMA.FromString ex: " + ex.Message);
#endif
errorLines.Add(s);
}
}
if (Table.TotalScanlines < Scanlines)
{
Table.Add(new HDMATableEntry(TableValueType.db, 1, (byte)ColorEffect));
}
Table.Add(HDMATableEntry.End);
UpdateImage();
return(errorLines.ToArray());
}
public void FromImage(Bitmap image)
{
if (Table == null)
{
Table = new HDMATable();
}
else
{
Table.Clear();
}
if ((Math.Log((double)ColorEffect) / Math.Log(2)) % 1 != 0)
{
throw new ArgumentException("Can't call method with ColorEffect having multiple colors.\nIt's currently set to: " + ColorEffect);
}
string color = "";
if (ColorEffect == ColorHDMAValues.Red)
{
color = "R";
}
else if (ColorEffect == ColorHDMAValues.Green)
{
color = "G";
}
else if (ColorEffect == ColorHDMAValues.Blue)
{
color = "B";
}
else
{
throw new ArgumentException("No color selected");
}
byte check_color = (byte)(Convert.ToInt32(typeof(Color).GetProperty(color).GetValue(image.GetPixel(0, 0), null)) / 8);
for (int y = 1, lines = 1; y < image.Height; y++, lines++)
{
byte cur_color = (byte)(Convert.ToInt32(typeof(Color).GetProperty(color).GetValue(image.GetPixel(0, y), null)) / 8);
if (cur_color != check_color || lines >= 0x80)
{
Table.Add(new HDMATableEntry(TableValueType.db, (byte)lines, (byte)((byte)ColorEffect | check_color)));
lines = 0;
check_color = cur_color;
}
}
if (Table.TotalScanlines != Scanlines)
{
Table.Add(new HDMATableEntry(TableValueType.db, (byte)(Scanlines - Table.TotalScanlines), (byte)((byte)ColorEffect | check_color)));
}
Table.Add(HDMATableEntry.End);
UpdateImage();
}
public string[] FromString(string[] lines)
{
Table = new HDMATable();
List <string> errorLines = new List <string>();
foreach (string s in lines)
{
try
{
string[] values = s.Split(",".ToCharArray(), StringSplitOptions.RemoveEmptyEntries);
if (values.Length < 2)
{
throw new ArgumentException("Too few arguments.");
}
byte scanlines = (byte)values[0].ToHexInt();
if (scanlines > 0x80 && scanlines - 0x80 != values.Length - 1)
{
throw new ArgumentException("Invalid use of scanline counter $80+");
}
byte[] bytes = new byte[values.Length - 1];
for (int i = 1; i < values.Length; i++)
{
bytes[i - 1] = (byte)(values[i].ToHexInt().Range(0, 15));
}
Table.Add(new HDMATableEntry(TableValueType.db, scanlines, bytes));
if (Table.TotalScanlines > Scanlines)
{
break;
}
}
catch (Exception ex)
{
#if (DEBUG)
Console.WriteLine("BrightnessHDMA.FromString ex: " + ex.Message);
#endif
errorLines.Add(s);
}
}
if (Table.TotalScanlines < Scanlines)
{
Table.Add(new HDMATableEntry(TableValueType.db, 1, 0xF));
}
Table.Add(HDMATableEntry.End);
UpdateImage();
return(errorLines.ToArray());
}
/// <summary>
///
/// </summary>
/// <param name="channel"></param>
/// <param name="table"></param>
/// <returns></returns>
public override string Code(int Channel, HDMATable Table, bool SA1)
{
string tablename = "";
if (ColorEffect.HasFlag(ColorHDMAValues.Red))
{
tablename += "Red";
}
if (ColorEffect.HasFlag(ColorHDMAValues.Green))
{
tablename += "Green";
}
if (ColorEffect.HasFlag(ColorHDMAValues.Blue))
{
tablename += "Blue";
}
return(ColorHDMA.Code(Channel, Table, SA1, "." + tablename + "Table"));
}
/// <summary>
/// Checks if the color HDMA table contains date that verifies it's need in the final code
/// </summary>
/// <returns></returns>
public bool IsEmpty()
{
if (Table == null)
{
Table = new HDMATable();
return(true);
}
foreach (HDMATableEntry entry in Table)
{
foreach (byte b in entry.Values)
{
if ((b & 0x1F) != 0)
{
return(false);
}
}
}
return(true);
}
public override string Code(int channel, HDMATable table, bool SA1)
{
Setup();
ASMCodeBuilder CodeBuilder = new ASMCodeBuilder();
if (Values.Count == 1 && Values[0].Scanline == Scanlines)
{
CodeBuilder.AppendLabel(MAINLabel, "Caution, not INIT");
CodeBuilder.OpenNewBlock();
CodeBuilder.AppendCode("LDA #$" + table[0].Values[0].ToString("X2"), "pixelise BGs");
CodeBuilder.AppendCode("STA $" + Registers.Pixelation.ToString("X4"));
CodeBuilder.AppendCode("RTS", "Return");
CodeBuilder.CloseBlock();
return(CodeBuilder.ToString());
}
int channelAdd = 16 * channel;
CodeBuilder.AppendLabel(INITLabel, "Code to be put in INIT ASM");
CodeBuilder.OpenNewBlock();
CodeBuilder.AppendCode("\tREP #$20");
CodeBuilder.AppendCode("\tLDA #$" + ((Registers.Pixelation & 0xFF) << 8).ToString("X4"));
CodeBuilder.AppendCode("\tSTA $" + (Registers.DMAMode + channelAdd).ToString("X4"));
CodeBuilder.AppendCode("\tLDA #" + table.Name);
CodeBuilder.AppendCode("\tSTA $" + (Registers.DMALowByte + channelAdd).ToString("X4"));
CodeBuilder.AppendCode("\tLDY.b #" + table.Name + ">>16");
CodeBuilder.AppendCode("\tSTY $" + (Registers.DMABankByte + channelAdd).ToString("X4"));
CodeBuilder.AppendCode("\tSEP #$20");
CodeBuilder.AppendCode("\tLDA #$" + (1 << channel).ToString("X2"));
CodeBuilder.AppendCode("\tTSB $" + RAM.HDMAEnable[SA1].ToString("X4"));
CodeBuilder.AppendCode("\tRTS");
CodeBuilder.CloseBlock();
CodeBuilder.AppendEmptyLine();
CodeBuilder.AppendTable(table);
return(CodeBuilder.ToString());
//return PixelationHDMA.Code(channel, table, SA1);
}
public static string Code(int Channel, HDMATable Table, bool SA1, string TableName)
{
DMAMode mode = (Table[0].Values.Length == 1 ? DMAMode.P : DMAMode.PP);
StringBuilder sbCode = new StringBuilder();
int channelAdd = 16 * Channel;
string tableName = "." + TableName.TrimStart('.');
sbCode.AppendLine("\tREP #$20");
sbCode.AppendLine("\tLDA #$" + (((Registers.FixedColor & 0xFF) << 8) + (int)mode).ToString("X4"));
sbCode.AppendLine("\tSTA $" + (Registers.DMAMode + channelAdd).ToString("X4"));
sbCode.AppendLine("\tLDA #" + tableName);
sbCode.AppendLine("\tSTA $" + (Registers.DMALowByte + channelAdd).ToString("X4"));
sbCode.AppendLine("\tLDY.b #" + tableName + ">>16");
sbCode.AppendLine("\tSTY $" + (Registers.DMABankByte + channelAdd).ToString("X4"));
sbCode.AppendLine("\tSEP #$20");
sbCode.AppendLine("\tLDA #$" + (1 << Channel).ToString("X2"));
sbCode.AppendLine("\tTSB $" + RAM.HDMAEnable[SA1].ToString("X4"));
sbCode.AppendLine("\tRTS");
sbCode.AppendLine();
sbCode.Append(Table.ToString(tableName));
return(sbCode.ToString());
}
public static string Code(int Channel, HDMATable Table, string TableName)
{
return(ColorHDMA.Code(Channel, Table, RAM.SA1, TableName));
}
public override string Code(int channel, HDMATable table, bool sa1)
{
bool bothWindows = (Table.Any(t => (t.ValueType == TableValueType.db && (t.Values[2] != 0xFF || t.Values[3] != 0x00))));
int mode = GetMode(false, bothWindows ? DMAMode.PP1P2P3 : DMAMode.PP1);
int register = Registers.WindowMask1Left;
if (!bothWindows && OneWindowEvent != null)
{
OneWindowEventArgs e = new OneWindowEventArgs(Window.Window1);
OneWindowEvent(this, e);
if (e.Cancel)
{
return("");
}
register += (int)e.Window;
}
if (!bothWindows)
{
foreach (HDMATableEntry entry in table)
{
if (entry.ValueType == TableValueType.db)
{
byte[] values = entry.Values;
Array.Resize(ref values, 2);
entry.Values = values;
}
}
}
int regmode = ((register & 0xFF) << 8) + mode;
int baseChannel = 0x4300 + (channel * 0x10);
ASMCodeBuilder code = new ASMCodeBuilder();
code.OpenNewBlock();
code.AppendCode("REP #$20", "Get into 16 bit mode");
code.AppendCode("LDA #$" + regmode.ToASMString(), "Register $" + register.ToASMString() + " using mode " + mode);
code.AppendCode("STA $" + baseChannel.ToASMString(), baseChannel.ToASMString() + " = transfer mode, " + (baseChannel + 1).ToASMString() + " = register");
code.AppendCode("LDA #" + table.Name, "High byte and low byte of table addresse.");
code.AppendCode("STA $" + (baseChannel + 2).ToASMString(), (baseChannel + 2).ToASMString() + " = low byte, " + (baseChannel + 3).ToASMString() + " = high byte");
code.AppendCode("SEP #$20", "Back to 8 bit mode");
code.AppendCode("LDA.b #" + table.Name + ">>16", "Bank byte of table addresse.");
code.AppendCode("STA $" + (baseChannel + 4).ToASMString(), "= bank byte");
code.CloseBlock();
code.OpenNewBlock();
code.AppendCode("LDA #$" + (1 << channel).ToASMString());
code.AppendCode("TSB $" + RAM.HDMAEnable[sa1].ToASMString() + "|!addr", "enable HDMA channel " + channel);
code.CloseBlock();
code.AppendCode("RTL", "Return");
code.AppendEmptyLine();
code.AppendTable(table);
return(code.ToString());
}
/// <summary>
///
/// </summary>
internal void UseCollection()
{
//http://www.codeproject.com/Articles/20018/Gradients-made-easy
List <ColorPosition> _list = new List <ColorPosition>(DarknessPositions);
_list.Sort();
if (_list[0].Position != 0)
{
_list.Insert(0, new ColorPosition(0, 0xF));
}
if (_list[_list.Count - 1].Position < Scanlines)
{
_list.Add(new ColorPosition(Scanlines, 0xF));
}
List <float> positions = new List <float>();
//positions.Add(0.0f);
int maxpos = _list.Max(cp => cp.Position);
foreach (ColorPosition cp in _list)
{
positions.Add((float)cp.Position / (float)maxpos);
}
//positions.Add(1.0f);
List <float> factors = new List <float>();
//factors.Add(0.0f);
foreach (ColorPosition cp in _list)
{
factors.Add((float)cp.Orignal8Bit / 15.0f);
}
//factors.Add(1.0f);
Bitmap bm = new Bitmap(1, maxpos);
using (Graphics g = Graphics.FromImage(bm))
{
Rectangle r = new Rectangle(0, 0, bm.Width, maxpos);
using (LinearGradientBrush lgb = new LinearGradientBrush(r, Color.FromArgb(_list.Min(cp => cp.Orignal8Bit) * 17, 0, 0),
Color.FromArgb(_list.Max(cp => cp.Orignal8Bit) * 17, 0, 0), 90.0f))
{
Blend blend = new Blend();
blend.Factors = factors.ToArray();
blend.Positions = positions.ToArray();
lgb.Blend = blend;
g.FillRectangle(lgb, r);
}
}
byte Compare = (byte)(bm.GetPixel(0, 0).R / 17);
Table = new HDMATable();
for (int y = 0, scan = 1; y < maxpos; y++, scan++)
{
byte darkness = (byte)(bm.GetPixel(0, y).R / 17);
if (Compare != darkness || scan >= 0x80 || y == maxpos - 1)
{
Table.Add(new HDMATableEntry(TableValueType.db, (byte)scan, Compare));
Compare = darkness;
scan = 0;
}
for (int x = 0; x < bm.Width; x++)
{
bm.SetPixel(x, y, Color.FromArgb(255 - darkness * 17, 0, 0, 0));
}
}
Table.Add(HDMATableEntry.End);
Bitmap retImg = new Bitmap(256, maxpos);
using (TextureBrush brush = new TextureBrush(bm, WrapMode.Tile))
using (Graphics gr = Graphics.FromImage(retImg))
gr.FillRectangle(brush, 0, 0, retImg.Width, retImg.Height);
bm.Dispose();
EffectImage = retImg;
}
/// <summary>
/// Generates the code for the desired effect
/// </summary>
/// <param name="channel"></param>
/// <param name="table"></param>
/// <param name="sa1"></param>
/// <returns></returns>
public override string Code(int channel, HDMATable table, bool sa1)
{
int Base = 0x4300 + (channel * 0x10);
int Register = (int)Layers;
int BaseAddress = RAM.Layer1X[sa1] + ((int)Layers - (int)LayerRegister.Layer1_X) * 2;
int RegMode = ((Register & 0xFF) << 8) + 0x02;
int LSRs = (int)((1.0 / _speed) / 2.0);
int Tablesize = (Scanlines / _width) >= 15 ? 15 : (Scanlines / _width);
int TableInRAM = CountRAMBytes();
string tableString = "The Table takes up " + TableInRAM + " bytes of the free RAM\n" +
"It ranges from $" + FreeRAM.ToString("X6") + " - $" + (FreeRAM + TableInRAM - 1).ToString("X6") + " (both addresses included)";
ASMTable codeTable = new ASMTable(".WaveTable");
for (int i = 0; i <= Tablesize; i++)
{
codeTable.Add(new ASMTableEntry((byte)_IArr[i]));
}
char xy = (((int)Layers & 0x01) == 0 ? 'Y' : 'X');
ASMCodeBuilder CodeBuilder = new ASMCodeBuilder();
CodeBuilder.OpenNewBlock();
CodeBuilder.AppendLabel(INITLabel, "This section is to be used in the INIT code of levelASM");
CodeBuilder.AppendCode("REP #$20");
CodeBuilder.AppendCode("LDA #$" + RegMode.ToASMString(), "Use Mode 02 on register " + Register.ToASMString());
CodeBuilder.AppendCode("STA $" + Base.ToASMString(), "43" + Channel + "0 = Mode, 43" + Channel + "1 = Register");
CodeBuilder.AppendCode("LDA #$" + (FreeRAM & 0xFFFF).ToASMString(), "Address of HDMA table");
CodeBuilder.AppendCode("STA $" + (Base + 2).ToASMString(), "43" + Channel + "2 = Low-Byte of table, 43" + Channel + "3 = High-Byte of table");
CodeBuilder.AppendCode("SEP #$20");
CodeBuilder.AppendCode("LDA.b #$" + (FreeRAM >> 16).ToASMString(), "Address of HDMA table, get bank byte");
CodeBuilder.AppendCode("STA $" + (Base + 4).ToASMString(), "43" + Channel + "4 = Bank-Byte of table");
CodeBuilder.AppendCode("LDA #$" + (0x01 << Channel).ToASMString());
CodeBuilder.AppendCode("TSB $" + RAM.HDMAEnable[sa1].ToASMString(), "Enable HDMA channel " + Channel);
CodeBuilder.AppendCode("RTS", "End HDMA setup" + MAINSeperator);
CodeBuilder.CloseBlock();
CodeBuilder.AppendCommentLine(tableString);
CodeBuilder.AppendEmptyLine();
CodeBuilder.OpenNewBlock();
CodeBuilder.AppendLabel(MAINLabel, "This section is to be used in the MAIN code of levelASM");
CodeBuilder.AppendCode("LDY #$00", "Y will be the loop counter.");
CodeBuilder.AppendCode("LDX #$00", "X the index for writing the table to the RAM");
CodeBuilder.AppendCode("LDA $" + RAM.FrameCounter[sa1].ToASMString(), "Speed of waves");
CodeBuilder.AppendCode("LSR #" + LSRs, "Slowing down A");
CodeBuilder.AppendCode("STA $00", "Save for later use.");
CodeBuilder.CloseBlock();
CodeBuilder.AppendEmptyLine();
CodeBuilder.OpenNewBlock();
CodeBuilder.AppendCode("PHB : PHK : PLB", "Preservev bank");
CodeBuilder.AppendLabel(".Loop", "Jump back if not finished writing table");
CodeBuilder.AppendCode("LDA #$" + _width.ToASMString(), "Set scanline height");
CodeBuilder.AppendCode("STA $" + FreeRAM.ToASMString() + ",x", "for each wave");
CodeBuilder.AppendCode("TYA", "Transfer Y to A, to calculate next index");
CodeBuilder.AppendCode("ADC $00", "Add frame counter");
CodeBuilder.AppendCode("AND #$" + Tablesize.ToASMString());
CodeBuilder.AppendCode("PHY", "Preserve loop counter");
CodeBuilder.AppendCode("TAY", "Get the index in Y");
CodeBuilder.CloseBlock();
CodeBuilder.AppendEmptyLine();
CodeBuilder.OpenNewBlock();
CodeBuilder.AppendCode("LDA.w " + codeTable.Name + ",y", "Load in wave value");
CodeBuilder.AppendCode("LSR", "Half only");
CodeBuilder.AppendCode("CLC", "Clear Carry for addition");
CodeBuilder.AppendCode("ADC $" + (BaseAddress).ToASMString(), "Add value to layer " + xy + " position (low byte)");
CodeBuilder.AppendCode("STA $" + (FreeRAM + 1).ToASMString() + ",x", "store to HDMA table (low byte)");
CodeBuilder.AppendCode("LDA $" + (BaseAddress + 1).ToASMString(), "Get high byte of X position");
CodeBuilder.AppendCode("ADC #$00", "Add value to layer X position (low byte)");
CodeBuilder.AppendCode("STA $" + (FreeRAM + 2).ToASMString() + ",x", "store to HDMA table (high byte)");
CodeBuilder.CloseBlock();
CodeBuilder.AppendEmptyLine();
CodeBuilder.OpenNewBlock();
CodeBuilder.AppendCode("PLY", "Pull original loop counter");
CodeBuilder.AppendCode("CPY #$" + (Scanlines / _width).ToASMString(), "Compare if we have written enough HDMA entries.");
CodeBuilder.AppendCode("BPL .End", "If bigger, end HDMA");
CodeBuilder.AppendCode("INX", "Increase X, so that in the next loop, it writes the new table data...");
CodeBuilder.AppendCode("INX", "... at the end of the old one instead of overwritting it.");
CodeBuilder.AppendCode("INX");
CodeBuilder.AppendCode("INY", "Increase loop counter");
CodeBuilder.AppendCode("BRA .Loop", "Repeat loop");
CodeBuilder.CloseBlock();
CodeBuilder.AppendEmptyLine();
CodeBuilder.OpenNewBlock();
CodeBuilder.AppendLabel(".End", "Jump here when at the end of HDMA");
CodeBuilder.AppendCode("PLB", "Pull back data bank.");
CodeBuilder.AppendCode("LDA #$00", "End HDMA by writting 00...");
CodeBuilder.AppendCode("STA $" + (FreeRAM + 3).ToASMString() + ",x", "...at the end of the table.");
CodeBuilder.AppendCode("RTS");
CodeBuilder.CloseBlock();
CodeBuilder.AppendEmptyLine();
CodeBuilder.OpenNewBlock();
CodeBuilder.AppendTable(codeTable);
CodeBuilder.CloseBlock();
return(CodeBuilder.ToString()); // +"\n\n" + tableString;
}
public static string Code(ColorHDMA red, ColorHDMA green, ColorHDMA blue,
PickSingleChannel single, PickMultiChannel multi, PickMultiChannel tripple)
{
bool redEmpty = red.IsEmpty();
bool greenEmpty = green.IsEmpty();
bool blueEmpty = blue.IsEmpty();
if (redEmpty && blueEmpty && greenEmpty)
{
//fixme Exception
throw new ArgumentException("Cannot generate code from the provided arguments");
}
if (redEmpty && blueEmpty)
{
return(green.Code(single()));
}
if (greenEmpty && blueEmpty)
{
return(red.Code(single()));
}
if (redEmpty && greenEmpty)
{
return(blue.Code(single()));
}
int[] newChannels = new int[] { 3, 4, 5 };
Dictionary <string, HDMATable> dicTable = new Dictionary <string, HDMATable>();
HDMATable merged = null;
if (greenEmpty)
{
if (HDMATable.Merge(red.Table, blue.Table, out merged))
{
return(ColorHDMA.Code(single(), merged, ".RedBlueTable"));
}
else
{
newChannels = multi();
dicTable.Add(".RedTable", red.Table);
dicTable.Add(".BlueTable", blue.Table);
}
}
else if (redEmpty)
{
if (HDMATable.Merge(green.Table, blue.Table, out merged))
{
return(ColorHDMA.Code(single(), merged, ".GreenBlueTable"));
}
else
{
newChannels = multi();
dicTable.Add(".GreenTable", green.Table);
dicTable.Add(".BlueTable", blue.Table);
}
}
else if (blueEmpty)
{
if (HDMATable.Merge(green.Table, red.Table, out merged))
{
return(ColorHDMA.Code(single(), merged, ".RedGreenTable"));
}
else
{
newChannels = multi();
dicTable.Add(".GreenTable", green.Table);
dicTable.Add(".RedTable", red.Table);
}
}
else
{
if (HDMATable.Merge(green.Table, red.Table, out merged))
{
newChannels = multi();
dicTable.Add(".RedGreenTable", merged);
dicTable.Add(".BlueTable", blue.Table);
}
else if (HDMATable.Merge(green.Table, blue.Table, out merged))
{
newChannels = multi();
dicTable.Add(".GreenBlueTable", merged);
dicTable.Add(".RedTable", red.Table);
}
else if (HDMATable.Merge(red.Table, blue.Table, out merged))
{
newChannels = multi();
dicTable.Add(".RedBlueTable", merged);
dicTable.Add(".GreenTable", red.Table);
}
else
{
newChannels = tripple();
dicTable.Add(".RedTable", red.Table);
dicTable.Add(".GreenTable", green.Table);
dicTable.Add(".BlueTable", blue.Table);
}
}
if (dicTable.Count != newChannels.Length)
{
throw new ArgumentException("Number of channels doesn't match number of tables.");
}
Func <KeyValuePair <string, HDMATable>, string> getTablename = old => "." + old.Key.TrimStart('.');
int channelTrigger = 0;
StringBuilder sbCode = new StringBuilder();
//sbCode.AppendLine("init:");
sbCode.AppendLine("\tREP #$20");
for (int i = 0; i < dicTable.Count; i++)
{
KeyValuePair <string, HDMATable> tablePair = dicTable.ElementAt(i);
DMAMode mode = (tablePair.Value[0].Values.Length == 1 ? DMAMode.P : DMAMode.PP);
int channelAdd = 16 * newChannels[i];
string tableName = getTablename(tablePair);
sbCode.AppendLine("\tLDA #$" + (((Registers.FixedColor & 0xFF) << 8) + (int)mode).ToString("X4"));
sbCode.AppendLine("\tSTA $" + (Registers.DMAMode + channelAdd).ToString("X4"));
sbCode.AppendLine("\tLDA #" + tableName);
sbCode.AppendLine("\tSTA $" + (Registers.DMALowByte + channelAdd).ToString("X4"));
sbCode.AppendLine("\tLDY.b #" + tableName + ">>16");
sbCode.AppendLine("\tSTY $" + (Registers.DMABankByte + channelAdd).ToString("X4"));
channelTrigger += (1 << newChannels[i]);
}
sbCode.AppendLine("\tSEP #$20");
sbCode.AppendLine("\tLDA #$" + channelTrigger.ToString("X2"));
sbCode.AppendLine("\tTSB $" + RAM.HDMAEnable[RAM.SA1].ToString("X4") + "|!addr");
sbCode.AppendLine("\tRTL");
for (int i = 0; i < dicTable.Count; i++)
{
KeyValuePair <string, HDMATable> tablePair = dicTable.ElementAt(i);
string tableName = getTablename(tablePair);
sbCode.AppendLine();
sbCode.Append(tablePair.Value.ToString(tableName));
}
return(sbCode.ToString());
}
/// <summary>
/// Creates a HDMATable instance that has the exact same values as this one
/// </summary>
/// <returns>The object that can be casted to an HDMATable</returns>
public object Clone()
{
HDMATable table = new HDMATable(this.Name, this._entries);
return(table);
}
/// <summary>
///
/// </summary>
protected HDMA()
{
Table = new HDMATable();
}
/// <summary>
///
/// </summary>
/// <param name="table"></param>
/// <returns></returns>
public virtual string Code(HDMATable table)
{
return(Code(this.Channel, table, RAM.SA1));
}
public bool CheckAndSplitMask(Bitmap mask, ColorMath math)
{
//array of with array for each line.
//each line has entrys with the color and the start position of that color in that line
ColPos[][] C_Arr = new ColPos[Scanlines][];
BitmapData data = mask.LockBits(new Rectangle(new Point(0, 0), mask.Size), ImageLockMode.ReadWrite, mask.PixelFormat);
byte[] bytes = new byte[data.Height * data.Stride];
System.Runtime.InteropServices.Marshal.Copy(data.Scan0, bytes, 0, bytes.Length);
for (int y = 0; y < mask.Height; y++)
{
Color ColorToCheck = BitmapEffects.GetPixel(data, bytes, 0, y); //mask.GetPixel(0, y);
List <ColPos> CList = new List <ColPos>();
CList.Add(new ColPos(ColorToCheck, 0));
for (int x = 1; x < mask.Width; x++)
{
Color c = BitmapEffects.GetPixel(data, bytes, x, y);
if (ColorToCheck == c) //mask.GetPixel(x, y))
{
continue;
}
ColorToCheck = c; //mask.GetPixel(x, y);
CList.Add(new ColPos(ColorToCheck, x));
}
C_Arr[y] = CList.ToArray();
}
mask.UnlockBits(data);
//if more then two black/white transitions appear in (any) line
bool black3 = C_Arr.Any((CA => CA.Count(c => c.Color.Name == "ff000000") > 2));
bool white3 = C_Arr.Any((CA => CA.Count(c => c.Color.Name == "ffffffff") > 2));
//3 transitions in both won't work eg. black-white-black-white-black-white
if (black3 && white3)
{
return(false);
}
int[] BlackLines;
int[] WhiteLines;
//get all the lines with 3 black transitions.
//can't be more then 3 because that would result in more then 3 white trans. in the same line.
IEnumerable <ColPos[]> Puff = C_Arr.Where((CA => CA.Count(c => c.Color.Name == "ff000000") > 2));
//an array of indeces to those lines.
BlackLines = new int[Puff.Count()];
int i = 0;
foreach (ColPos[] cp in Puff)
{
BlackLines[i] = Array.IndexOf(C_Arr, cp);
i++;
}
//same for white.
Puff = C_Arr.Where((CA => CA.Count(c => c.Color.Name == "ffffffff") > 2));
WhiteLines = new int[Puff.Count()];
i = 0;
foreach (ColPos[] cp in Puff)
{
WhiteLines[i] = Array.IndexOf(C_Arr, cp);
i++;
}
Bitmap w1 = BitmapEffects.FromColor(Color.White, 256, 224);
Bitmap w2 = BitmapEffects.FromColor(Color.White, 256, 224);
BitmapData w1Data = w1.LockBits(new Rectangle(0, 0, w1.Width, w1.Height), ImageLockMode.ReadWrite, w1.PixelFormat);
BitmapData w2Data = w2.LockBits(new Rectangle(0, 0, w2.Width, w2.Height), ImageLockMode.ReadWrite, w2.PixelFormat);
byte[] w1Bytes = new byte[w1Data.Height * w1Data.Stride];
byte[] w2Bytes = new byte[w2Data.Height * w2Data.Stride];
System.Runtime.InteropServices.Marshal.Copy(w1Data.Scan0, w1Bytes, 0, w1Bytes.Length);
System.Runtime.InteropServices.Marshal.Copy(w2Data.Scan0, w2Bytes, 0, w2Bytes.Length);
Table = new HDMATable(".windowTable");
HDMATableEntry entry = null;
HDMATableEntry lastEntry = null;
//if any line in this image requires 3 black and 2 white, one window (bm1) has to be inverted.
bool WindowInverted = C_Arr.Any(cp => (cp.Count(c => c.Color.Name == "ff000000") == 3 &&
cp.Count(c => c.Color.Name == "ffffffff") == 2));
for (int y = 0; y < Scanlines; y++)
{
entry = new HDMATableEntry(TableValueType.db, (byte)(1 + y - Table.TotalScanlines),
0xFF, 0x00, 0xFF, 0x00);
int countBlack = C_Arr[y].Count(cp => cp.Color.Name == "ff000000");
int countWhite = C_Arr[y].Count(cp => cp.Color.Name == "ffffffff");
Func <int, int, int, bool> BlackFromTill = (window, from, till) =>
{
if (till == 0x100)
{
till = 0xFF;
}
if (window == 1)
{
for (int x = from; x < till; x++)
{
BitmapEffects.SetPixel(w1Data, ref w1Bytes, x, y, Color.Black);
}
entry.Values[0] = (byte)from;
entry.Values[1] = (byte)till;
return(true);
}
else if (window == 2)
{
for (int x = from; x < till; x++)
{
BitmapEffects.SetPixel(w2Data, ref w2Bytes, x, y, Color.Black);
}
entry.Values[2] = (byte)from;
entry.Values[3] = (byte)till;
return(true);
}
return(false);
};
if (countBlack == 1 && countWhite == 0)
{
// whole line black.
// if window get's inverted, line can be left unchanged.
if (!WindowInverted)
{
BlackFromTill(1, 0, w1.Width); // if not, whole line black
}
}
else if (countBlack == 2 && countWhite == 1)
{
//outer black, inner white (black-white-black)
if (WindowInverted) //if window 1 is inverted it can be done using one window.
{
BlackFromTill(1, C_Arr[y][1].Position, C_Arr[y][2].Position); //The part white in the mask will be black in w1
}
else //window 1 not inveted:
{
BlackFromTill(1, C_Arr[y][0].Position, C_Arr[y][1].Position); // first black part of mask in window 1,
BlackFromTill(2, C_Arr[y][2].Position, w2.Width); // and the second in window 2.
}
}
else if (countBlack == 3 && countWhite == 2)
{
//black-white-black-white-black
//1 window inverted, the other not (not possible otherwise).
//meaning window 1 will be inverted.
BlackFromTill(1, C_Arr[y][1].Position, C_Arr[y][4].Position); // windows 1 will be black from the beginning of the first white
BlackFromTill(2, C_Arr[y][2].Position, C_Arr[y][3].Position); // till the end of the second. Windows 2 is the middle black part.
}
//else if (countBlack == 3 && countWhite == 3)
//... IMPOSSIBRU <.<
else if (countBlack == 2 && countWhite == 3)
{
//white-black-white-black-white
//both windows have to be uninverted. (or playing with XOR setting)
BlackFromTill(1, C_Arr[y][1].Position, C_Arr[y][2].Position); // window 1 black for first black part of mask
BlackFromTill(2, C_Arr[y][3].Position, C_Arr[y][4].Position); // windows 2 black for second part.
}
else if (countBlack == 1 && countWhite == 2)
{
//outer white inner black (white-black-white)
if (WindowInverted) //if windows 1 is inverted, we have to use window 2 and set window 1 black on the whole line
{
BlackFromTill(1, 0, w1.Width); // window 1 completly black
BlackFromTill(2, C_Arr[y][1].Position, C_Arr[y][2].Position); // window 2 black where mask is black.
}
else
{
BlackFromTill(1, C_Arr[y][1].Position, C_Arr[y][2].Position); // if not inverted, simply use window 1.
}
}
else if (countBlack == 0 && countWhite == 1)
{
//whole line visible
if (WindowInverted)
{
BlackFromTill(1, 0, w1.Width); // if window 1 inverted, whole line black
}
}
else if (countBlack == 2 && countWhite == 2)
{
//problem: unknown if black-white-black-white or white-black-white-black
#region 2/2
if (C_Arr[y][0].Color.Name == "ff000000") //if fisrt part black then B-W-B-W
{
if (WindowInverted) //inverted:
{
BlackFromTill(1, C_Arr[y][1].Position, w1.Width); // the -W-B-W area will be black, so inverted makes the first bar black
BlackFromTill(2, C_Arr[y][2].Position, C_Arr[y][3].Position); // window 2 simply makes second bar black
}
else //not inverted
{
BlackFromTill(1, C_Arr[y][0].Position, C_Arr[y][1].Position); // first bar in window 1
BlackFromTill(2, C_Arr[y][2].Position, C_Arr[y][3].Position); // guess what
}
}
else // first bar not black, thus W-B-W-B
{
if (WindowInverted) //inverted:
{
BlackFromTill(1, C_Arr[y][0].Position, C_Arr[y][3].Position); // the W-B-W- area will be black, inverting makes the last bar black.
BlackFromTill(2, C_Arr[y][1].Position, C_Arr[y][2].Position); // window 2 will be black where the first bar is.
}
else //not inverted
{
BlackFromTill(1, C_Arr[y][1].Position, C_Arr[y][2].Position); // first bar in window 2
BlackFromTill(2, C_Arr[y][3].Position, w2.Width); // ...
}
}
#endregion
}
else if (countBlack == 1 && countWhite == 1)
{
//problem: unknown if black-white or white-black
if (C_Arr[y][0].Color.Name == "ff000000") //first bar is black thus B-W
{
if (WindowInverted) //inverted:
{
BlackFromTill(1, C_Arr[y][1].Position, w1.Width); //set second bar (white) to black due to inverting
}
else //not inverted
{
BlackFromTill(1, C_Arr[y][0].Position, C_Arr[y][1].Position); //first bar (black) in window one to black
}
}
else //first bar not black thus W-B
{
if (WindowInverted) //inverted:
{
BlackFromTill(1, C_Arr[y][0].Position, C_Arr[y][1].Position); // set white part black;
}
else //not inverted
{
BlackFromTill(1, C_Arr[y][1].Position, w1.Width); //set second bar black.
}
}
}
if ((lastEntry != null && !entry.Values.SequenceEqual(lastEntry.Values)) || entry.Scanlines == 0x81)
{
Table.Add(lastEntry);
entry.Scanlines = 1;
}
lastEntry = (HDMATableEntry)entry.Clone();
} //end of for-loop
Table.Add(lastEntry); //the last last entry
Table.Add(HDMATableEntry.End); //the actual end.
System.Runtime.InteropServices.Marshal.Copy(w1Bytes, 0, w1Data.Scan0, w1Bytes.Length);
System.Runtime.InteropServices.Marshal.Copy(w2Bytes, 0, w2Data.Scan0, w2Bytes.Length);
w1.UnlockBits(w1Data);
w2.UnlockBits(w2Data);
math.WindowingMask1 = w1;
math.WindowingMask2 = w2;
math.Window1Inverted = WindowInverted ? (WindowingLayers)0x3F : 0;
return(true);
}
/// <summary> /// /// </summary> /// <param name="channel"></param> /// <param name="table"></param> /// <returns></returns> public abstract string Code(int channel, HDMATable table, bool sa1);
public override string Code(int channel, HDMATable table, bool sa1)
{
int Base = 0x4300 + (channel * 0x10);
int Register = (int)Layers;
int BaseAddress = RAM.Layer1X[sa1] + ((int)Layers - (int)LayerRegister.Layer1_X) * 2;
int RegMode = ((Register & 0xFF) << 8) + GetMode(true, DMAMode.PP);
var grouped = Bars.GroupBy(b => b.Multiplier);
HDMATable _table = new HDMATable("ParallaxTable_" + DateTime.Now.ToString("HHmmssfff"));
int tableInRAM = grouped.Count() * 2;
Dictionary <int, int> multiplierAddressMapping = new Dictionary <int, int>();
int addresseForOne = 0; //address that has the scrollrate of 1 to finish the table.
string tableString = "The Table takes up " + tableInRAM + " bytes of the free RAM\n" +
"It ranges from $" + FreeRAM.ToString("X6") + " - $" + (FreeRAM + tableInRAM - 1).ToString("X6") + " (both addresses included)";
ASMCodeBuilder CodeBuilder = new ASMCodeBuilder();
if (Original.Height > Scanlines)
{
CodeBuilder.AppendCommentLine("IMPORTANT! Please edit the JMP command below for the level you use this on");
}
CodeBuilder.AppendEmptyLine();
CodeBuilder.OpenNewBlock();
CodeBuilder.AppendLabel(INITLabel, "This section is to be used in the INIT code of levelASM");
CodeBuilder.AppendCode("REP #$20");
CodeBuilder.AppendCode("LDA #$" + RegMode.ToASMString(), "Use indeirect and mode " + (int)DMAMode.PP + " on register " + Register.ToASMString());
CodeBuilder.AppendCode("STA $" + Base.ToASMString(), "43" + Channel + "0 = Mode, 43" + Channel + "1 = Register");
if (Original.Height <= Scanlines)
{
CodeBuilder.AppendCode("LDA #" + _table.Name, "Address of HDMA table, get high and low byte");
CodeBuilder.AppendCode("STA $" + (Base + 2).ToASMString(), "43" + Channel + "2 = Low-Byte of table, 43" + Channel + "3 = High-Byte of table");
}
CodeBuilder.AppendCode("SEP #$20");
CodeBuilder.AppendCode("LDA.b #" + _table.Name + ">>16", "Address of HDMA table, get bank byte");
CodeBuilder.AppendCode("STA $" + (Base + 4).ToASMString(), "43" + Channel + "4 = Bank-Byte of table");
CodeBuilder.AppendCode("LDA #$" + (FreeRAM >> 16).ToASMString(), "Address of indirect table in RAM bank byte");
CodeBuilder.AppendCode("STA $" + (Base + 7).ToASMString(), "43" + Channel + "4 = Bank-Byte of indirect table");
CodeBuilder.AppendCode("LDA #$" + (0x01 << Channel).ToASMString());
CodeBuilder.AppendCode("TSB $" + RAM.HDMAEnable[sa1].ToASMString() + "|!addr", "Enable HDMA channel " + Channel);
if (Original.Height > Scanlines)
{
CodeBuilder.AppendCode("JMP level105_" + MAINLabel.TrimStart('.'), "Jump to main code" + MAINSeperator);
}
else
{
CodeBuilder.AppendCode("RTL", "Return" + MAINSeperator);
}
CodeBuilder.CloseBlock();
CodeBuilder.AppendCommentLine(tableString);
CodeBuilder.AppendEmptyLine();
CodeBuilder.OpenNewBlock();
CodeBuilder.AppendLabel(MAINLabel, "This section is to be used in the MAIN code of levelASM");
CodeBuilder.AppendCode("REP #$20", "16 bit action starts here. (To load the x position of the BG)");
CodeBuilder.CloseBlock();
//index for HDMA table entry calculation
if (Original.Height > Scanlines)
{
CodeBuilder.OpenNewBlock();
CodeBuilder.AppendCode("LDA $" + (BaseAddress + 2).ToASMString(), "Get Y position of BG");
CodeBuilder.AppendCode("ASL", "times 2");
CodeBuilder.AppendCode("CLC : ADC $" + (BaseAddress + 2).ToASMString(), "+1 = times 3");
CodeBuilder.AppendCode("CLC : ADC #" + _table.Name + "+3", "plus Address of HDMA table +3");
//CodeBuilder.AppendCode("INC : INC : INC", "I have no idea why, but the result is off by 1 entry (3 bytes) so this is to fix it.");
CodeBuilder.AppendCode("STA $" + (Base + 2).ToASMString(), "43" + Channel + "2 = Low-Byte of table, 43" + Channel + "3 = High-Byte of table");
CodeBuilder.CloseBlock();
}
CodeBuilder.AppendEmptyLine();
int i = 0;
//grouped by multiplier
foreach (var bar in grouped)
{
CodeBuilder.OpenNewBlock();
if (bar.Key != 0.0)
{
CodeBuilder.AppendCode("LDA $" + BaseAddress.ToASMString(), "Load BG x Position");
}
CodeBuilder.AppendCode(ParallaxHDMAEntry.LsrAsl(bar.Key), "Multiplied by " + bar.Key);
var windGroup = bar.GroupBy(b => b.Autospeed);
foreach (var singleBar in windGroup)
{
//if there is no wind, don't add or preserve A
if (singleBar.ElementAt(0).Autoscroll&& singleBar.Key != 0)
{
CodeBuilder.AppendCode("PHA", "Preserve A (current multiplication result)");
CodeBuilder.AppendCode("CLC : ADC #$" + singleBar.Key.ToString("X4"), "Add rate.");
}
CodeBuilder.AppendCode("STA $" + (FreeRAM + i).ToASMString(), "Store to FreeRAM for indirect HDMA");
//also don't restore A if there is no wind.
if (singleBar.ElementAt(0).Autoscroll&& singleBar.Key != 0)
{
CodeBuilder.AppendCode("PLA", "Restore A (current multiplication result)");
}
//keep track of the address for normal scrolling behaviour (multiplier = 1, no auto scroll)
if (bar.Key == 1.0 && singleBar.ElementAt(0).Autoscroll&& singleBar.Key != 0)
{
addresseForOne = FreeRAM + i;
}
//remember which address has this specs in dictionary with hashcode
multiplierAddressMapping.Add(singleBar.ElementAt(0).GetHashCode(), FreeRAM + i);
i += 2;
}
CodeBuilder.CloseBlock();
}
//if the normal scrolling hasn't been set yet, make one.
if (addresseForOne == 0)
{
CodeBuilder.OpenNewBlock();
CodeBuilder.AppendCode("LDA $" + BaseAddress.ToASMString(), "Load BG x Position");
CodeBuilder.AppendCode("STA $" + (FreeRAM + i).ToASMString(), "Store to FreeRAM for indirect HDMA");
CodeBuilder.CloseBlock();
addresseForOne = FreeRAM + i;
i += 2;
}
//build the table
foreach (var bar in Bars)
{
//fetch indirect HDMA address
int adr = multiplierAddressMapping[bar.GetHashCode()] & 0xFFFF;
//split it
byte low = (byte)(adr & 0xFF);
byte high = (byte)((adr >> 8) & 0xFF);
//make as many 1 scanline high entries as needed.
var entry = new HDMATableEntry(TableValueType.dw, 1, low, high);
_table.AddRange(Enumerable.Repeat <HDMATableEntry>(entry, bar.Scanline));
}
//if there aren't enough entries for the whole screen yet, fill it up with scrollrate 1.
if (_table.Count < Original.Height)
{
//fetch indirect HDMA address for normal scrolling
int adr = addresseForOne & 0xFFFF;
//split it
byte low = (byte)(adr & 0xFF);
byte high = (byte)((adr >> 8) & 0xFF);
var entry = new HDMATableEntry(TableValueType.dw, 1, low, high);
_table.AddRange(Enumerable.Repeat <HDMATableEntry>(entry, Original.Height - _table.Count));
}
//cut down table
for (int l = _table.Count - 1; l >= Original.Height; l--)
{
_table.RemoveAt(l);
}
//add end.
_table.Add(HDMATableEntry.End);
CodeBuilder.AppendCode("SEP #$20", "Back to 8bit");
CodeBuilder.AppendCode("RTL", "Return");
CodeBuilder.CloseBlock();
CodeBuilder.AppendEmptyLine();
CodeBuilder.OpenNewBlock();
CodeBuilder.AppendTable(_table);
CodeBuilder.CloseBlock();
return(CodeBuilder.ToString()); // +"\n\n" + tableString;
}