/// <summary>
/// Draw the frame buffer to the screen.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void Gpu_Paint(object sender, PaintEventArgs e)
{
Graphics g = e.Graphics;
g.Clear(BackColor);
if (VRAM == null)
{
g.DrawString("VRAM Not initialized", this.Font, TextBrush, 0, 0);
return;
}
if (CodeRAM == null)
{
g.DrawString("CodeRAM Not initialized", this.Font, TextBrush, 0, 0);
return;
}
if (ColumnsVisible < 1 || ColumnsVisible > 128)
{
g.DrawString("ColumnsVisible invalid:" + ColumnsVisible.ToString(), this.Font, TextBrush, 0, 0);
return;
}
if (LinesVisible < 1)
{
g.DrawString("LinesVisible invalid:" + LinesVisible.ToString(), this.Font, TextBrush, 0, 0);
return;
}
//DrawVectorText(e.Graphics);
DrawBitmapText(e.Graphics);
}
void Gpu_Paint(object sender, PaintEventArgs e)
{
paintCycle++;
//if (VICKY == null)
//{
// e.Graphics.DrawString("IO Memory Not Initialized", this.Font, TextBrush, 0, 0);
// return;
//}
//if (VRAM == null)
//{
// e.Graphics.DrawString("VRAM Not Initialized", this.Font, TextBrush, 0, 0);
// return;
//}
//if (RAM == null || DesignMode)
if (DesignMode)
{
e.Graphics.DrawString("RAM Not Initialized", this.Font, TextBrush, 0, 0);
return;
}
// Read the Master Control Register
//byte MCRegister = VICKY.ReadByte(0); // Reading address $AF:0000
byte MCRegister = FoenixSystem.Current.MemoryManager.ReadByte(MemoryMap.VICKY_BASE_ADDR); // Reading address $AF:0000
if (MCRegister == 0 || (MCRegister & 0x80) == 0x80)
{
e.Graphics.DrawString("Graphics Mode disabled", this.Font, TextBrush, 0, 0);
return;
}
if (drawing)
{
return;
}
drawing = true;
e.Graphics.CompositingMode = System.Drawing.Drawing2D.CompositingMode.SourceCopy;
e.Graphics.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighSpeed;
e.Graphics.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.NearestNeighbor;
e.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighSpeed;
if (MCRegister != 0 && MCRegister != 0x80)
{
StartOfFrame?.Invoke();
}
Graphics g = Graphics.FromImage(frameBuffer);
// Determine if we display a border
int border_register = FoenixSystem.Current.MemoryManager.ReadByte(MemoryMap.VICKY_BASE_ADDR + 4); //VICKY.ReadByte(4);
bool displayBorder = (border_register & 1) == 1;
int colOffset = FoenixSystem.Current.MemoryManager.ReadByte(MemoryMap.VICKY_BASE_ADDR + 8); //VICKY.ReadByte(8);
int rowOffset = FoenixSystem.Current.MemoryManager.ReadByte(MemoryMap.VICKY_BASE_ADDR + 9); //VICKY.ReadByte(9);
// Load Graphical LUTs
graphicsLUT = LoadLUT();
// Apply gamma correct
if ((MCRegister & 0x40) == 0x40)
{
gammaCorrection = LoadGammaCorrection();
}
else
{
gammaCorrection = null;
}
// Default background color to border color
// In Text mode, the border color is stored at $AF:0005.
byte borderRed = FoenixSystem.Current.MemoryManager.ReadByte(MemoryMap.VICKY_BASE_ADDR + 5); //VICKY.ReadByte(5);
byte borderGreen = FoenixSystem.Current.MemoryManager.ReadByte(MemoryMap.VICKY_BASE_ADDR + 6); //VICKY.ReadByte(6);
byte borderBlue = FoenixSystem.Current.MemoryManager.ReadByte(MemoryMap.VICKY_BASE_ADDR + 7); //VICKY.ReadByte(7);
if (gammaCorrection != null)
{
borderRed = gammaCorrection[0x200 + borderRed];
borderGreen = gammaCorrection[0x100 + borderGreen];
borderBlue = gammaCorrection[borderBlue];
}
int borderColor = (int)(0xFF000000 + (borderBlue << 16) + (borderGreen << 8) + borderRed);
if (tileEditorMode)
{
g.Clear(Color.LightGray);
DrawTextWithBackground("Tile Editing Mode", g, Color.Black, 240, 10);
DrawTextWithBackground("Tile Editing Mode", g, Color.Black, 240, 455);
}
else
{
g.Clear(Color.FromArgb(borderColor));
}
// Graphics Mode
if ((MCRegister & 0x4) == 0x4)
{
byte backRed = FoenixSystem.Current.MemoryManager.ReadByte(MemoryMap.VICKY_BASE_ADDR + 0xD); //VICKY.ReadByte(0xD);
byte backGreen = FoenixSystem.Current.MemoryManager.ReadByte(MemoryMap.VICKY_BASE_ADDR + 0xE); //VICKY.ReadByte(0XE);
byte backBlue = FoenixSystem.Current.MemoryManager.ReadByte(MemoryMap.VICKY_BASE_ADDR + 0xF); //VICKY.ReadByte(0xF);
if (gammaCorrection != null)
{
backRed = gammaCorrection[0x200 + backRed];
backGreen = gammaCorrection[0x100 + backGreen];
backBlue = gammaCorrection[backBlue];
}
int backgroundColor = (int)(0xFF000000 + (backBlue << 16) + (backGreen << 8) + backRed);
Brush graphBackgroundBrush = new SolidBrush(Color.FromArgb(backgroundColor));
g.FillRectangle(graphBackgroundBrush, colOffset, rowOffset, 640 - 2 * colOffset, 480 - 2 * rowOffset);
}
// Bitmap Mode
if ((MCRegister & 0x8) == 0x8)
{
DrawBitmap(frameBuffer, displayBorder);
}
for (int layer = 4; layer > 0; --layer)
{
if ((MCRegister & 0x10) == 0x10)
{
DrawTiles(frameBuffer, layer - 1, displayBorder);
}
if ((MCRegister & 0x20) == 0x20)
{
DrawSprites(frameBuffer, layer - 1, displayBorder);
}
}
if ((MCRegister & 0x1) == 0x1)
{
int top = 0;
if (ColumnsVisible < 1 || ColumnsVisible > MAX_TEXT_COLS)
{
Graphics graphics = Graphics.FromImage(frameBuffer);
DrawTextWithBackground("ColumnsVisible invalid:" + ColumnsVisible.ToString(), graphics, Color.Black, 0, top);
top += 12;
}
if (LinesVisible < 1 || LinesVisible > MAX_TEXT_LINES)
{
Graphics graphics = Graphics.FromImage(frameBuffer);
DrawTextWithBackground("LinesVisible invalid:" + LinesVisible.ToString(), graphics, Color.Black, 0, top);
top += 12;
}
if (top == 0)
{
DrawBitmapText(frameBuffer, colOffset, rowOffset);
}
}
byte mouseReg = FoenixSystem.Current.MemoryManager.ReadByte(MemoryMap.VICKY_BASE_ADDR + 0x700); //VICKY.ReadByte(0x700);
MousePointerMode = (mouseReg & 1) == 1;
if (MousePointerMode && !TileEditorMode)
{
DrawMouse(frameBuffer);
}
e.Graphics.DrawImage(frameBuffer, ClientRectangle);
drawing = false;
}
void Gpu_Paint(object sender, PaintEventArgs e)
{
paintCycle++;
if (DesignMode)
{
e.Graphics.DrawString("Design Mode", this.Font, TextBrush, 0, 0);
return;
}
if (VICKY == null)
{
e.Graphics.DrawString("IO Memory Not Initialized", this.Font, TextBrush, 0, 0);
return;
}
if (VRAM == null)
{
e.Graphics.DrawString("VRAM Not Initialized", this.Font, TextBrush, 0, 0);
return;
}
if (RAM == null)
{
e.Graphics.DrawString("RAM Not Initialized", this.Font, TextBrush, 0, 0);
return;
}
// Read the Master Control Register
byte MCRegister = VICKY.ReadByte(0); // Reading address $AF:0000
int top = 0; // top gets modified if error messages are displayed
Graphics g = Graphics.FromImage(frameBuffer);
if (MCRegister == 0 || (MCRegister & 0x80) == 0x80)
{
e.Graphics.DrawString("Graphics Mode disabled", this.Font, TextBrush, 0, 0);
return;
}
else if ((MCRegister & 0x1) == 0x1)
{
if (ColumnsVisible < 1 || ColumnsVisible > MAX_TEXT_COLS)
{
DrawTextWithBackground("ColumnsVisible invalid:" + ColumnsVisible.ToString(), g, Color.Black, 0, top);
top += 12;
}
if (LinesVisible < 1 || LinesVisible > MAX_TEXT_LINES)
{
DrawTextWithBackground("LinesVisible invalid:" + LinesVisible.ToString(), g, Color.Black, 0, top);
top += 12;
}
}
if (drawing)
{
// drop the frame
return;
}
drawing = true;
Stopwatch stopWatch = new Stopwatch();
stopWatch.Start();
e.Graphics.CompositingMode = System.Drawing.Drawing2D.CompositingMode.SourceCopy;
e.Graphics.CompositingQuality = System.Drawing.Drawing2D.CompositingQuality.HighSpeed;
e.Graphics.InterpolationMode = System.Drawing.Drawing2D.InterpolationMode.NearestNeighbor;
e.Graphics.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighSpeed;
// Determine if we display a border
int border_register = VICKY.ReadByte(4);
bool displayBorder = (border_register & 1) == 1;
int colOffset = VICKY.ReadByte(8);
int rowOffset = VICKY.ReadByte(9);
// Load Graphical LUTs
graphicsLUT = LoadLUT(VICKY);
// Apply gamma correct
if ((MCRegister & 0x40) == 0x40)
{
gammaCorrection = LoadGammaCorrection(VICKY);
}
else
{
gammaCorrection = null;
}
// Default background color to border color
// In Text mode, the border color is stored at $AF:0005.
byte borderRed = VICKY.ReadByte(5);
byte borderGreen = VICKY.ReadByte(6);
byte borderBlue = VICKY.ReadByte(7);
if (gammaCorrection != null)
{
borderRed = gammaCorrection[0x200 + borderRed];
borderGreen = gammaCorrection[0x100 + borderGreen];
borderBlue = gammaCorrection[borderBlue];
}
int borderColor = (int)(0xFF000000 + (borderBlue << 16) + (borderGreen << 8) + borderRed);
if (tileEditorMode)
{
g.Clear(Color.LightGray);
DrawTextWithBackground("Tile Editing Mode", g, Color.Black, 240, 10);
DrawTextWithBackground("Tile Editing Mode", g, Color.Black, 240, 455);
}
else
{
g.Clear(Color.FromArgb(borderColor));
}
// Graphics Mode
if ((MCRegister & 0x4) == 0x4)
{
byte backRed = VICKY.ReadByte(0xD);
byte backGreen = VICKY.ReadByte(0XE);
byte backBlue = VICKY.ReadByte(0xF);
if (gammaCorrection != null)
{
backRed = gammaCorrection[0x200 + backRed];
backGreen = gammaCorrection[0x100 + backGreen];
backBlue = gammaCorrection[backBlue];
}
int backgroundColor = (int)(0xFF000000 + (backBlue << 16) + (backGreen << 8) + backRed);
Brush graphBackgroundBrush = new SolidBrush(Color.FromArgb(backgroundColor));
g.FillRectangle(graphBackgroundBrush, colOffset, rowOffset, 640 - 2 * colOffset, 480 - 2 * rowOffset);
}
Rectangle rect = new Rectangle(0, 0, 640, 480);
BitmapData bitmapData = frameBuffer.LockBits(rect, ImageLockMode.WriteOnly, PixelFormat.Format32bppArgb);
// Bitmap Mode
if ((MCRegister & 0x4) == 0x4 || tileEditorMode)
{
if ((MCRegister & 0x8) == 0x8)
{
DrawBitmap(ref bitmapData, displayBorder);
}
for (int layer = 4; layer > 0; --layer)
{
if ((MCRegister & 0x10) == 0x10)
{
DrawTiles(ref bitmapData, layer - 1, 640, displayBorder);
}
if ((MCRegister & 0x20) == 0x20)
{
DrawSprites(ref bitmapData, layer - 1, 640, displayBorder);
}
}
}
if ((MCRegister & 7) == 0x1 || (MCRegister & 7) == 3 || (MCRegister & 7) == 7)
{
if (top == 0)
{
DrawBitmapText(ref bitmapData, colOffset, rowOffset);
}
}
byte mouseReg = VICKY.ReadByte(0x700);
MousePointerMode = (mouseReg & 1) == 1;
if (MousePointerMode && !TileEditorMode)
{
DrawMouse(ref bitmapData, 640);
}
frameBuffer.UnlockBits(bitmapData);
e.Graphics.DrawImage(frameBuffer, ClientRectangle);
drawing = false;
stopWatch.Stop();
TimeSpan ts = stopWatch.Elapsed;
if (ts.Milliseconds > 10)
{
Console.WriteLine("Drawing Time: " + ts.Milliseconds + "ms");
}
// This seems to make the rendering much better. Do we care if this is 1 frame off?
if (MCRegister != 0 && MCRegister != 0x80)
{
StartOfFrame?.Invoke();
}
}