/// <summary>
/// Initialize the device objects
/// </summary>
/// <param name="dev">The grpahics device used to initialize</param>
public void InitializeDeviceObjects(Device dev)
{
if (dev != null) {
// Set up our events
dev.DeviceReset += new System.EventHandler(this.RestoreDeviceObjects);
}
// Keep a local copy of the device
device = dev;
textureState0 = device.TextureState[0];
textureState1 = device.TextureState[1];
samplerState0 = device.SamplerState[0];
renderState = device.RenderState;
// Create a bitmap on which to measure the alphabet
Bitmap bmp = new Bitmap(1, 1, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
Graphics g = Graphics.FromImage(bmp);
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
g.TextContrast = 0;
// Establish the font and texture size
textureScale = 1.0f; // Draw fonts into texture without scaling
// Calculate the dimensions for the smallest power-of-two texture which
// can hold all the printable characters
textureWidth = textureHeight = 128;
for (;;) {
try {
// Measure the alphabet
PaintAlphabet(g, true);
}
catch (System.InvalidOperationException) {
// Scale up the texture size and try again
textureWidth *= 2;
textureHeight *= 2;
continue;
}
break;
}
// If requested texture is too big, use a smaller texture and smaller font,
// and scale up when rendering.
Direct3D.Caps d3dCaps = device.DeviceCaps;
// If the needed texture is too large for the video card...
if (textureWidth > d3dCaps.MaxTextureWidth) {
// Scale the font size down to fit on the largest possible texture
textureScale = (float)d3dCaps.MaxTextureWidth / (float)textureWidth;
textureWidth = textureHeight = d3dCaps.MaxTextureWidth;
for(;;) {
// Create a new, smaller font
ourFontHeight = (int) Math.Floor(ourFontHeight * textureScale);
systemFont = new System.Drawing.Font(systemFont.Name, ourFontHeight, systemFont.Style);
try {
// Measure the alphabet
PaintAlphabet(g, true);
}
catch (System.InvalidOperationException) {
// If that still doesn't fit, scale down again and continue
textureScale *= 0.9F;
continue;
}
break;
}
}
// Release the bitmap used for measuring and create one for drawing
bmp.Dispose();
bmp = new Bitmap(textureWidth, textureHeight, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
g = Graphics.FromImage(bmp);
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
g.TextContrast = 0;
// Draw the alphabet
PaintAlphabet(g, false);
// Create a new texture for the font from the bitmap we just created
fontTexture = Texture.FromBitmap(device, bmp, 0, Pool.Managed);
RestoreDeviceObjects(null, null);
}
/// <summary>
/// Initialize the device objects
/// </summary>
/// <param name="dev">The grpahics device used to initialize</param>
public void InitializeDeviceObjects(Device dev)
{
if (dev != null)
{
// Set up our events
dev.DeviceReset += new System.EventHandler(this.RestoreDeviceObjects);
}
// Keep a local copy of the device
device = dev;
textureState0 = device.TextureState[0];
textureState1 = device.TextureState[1];
samplerState0 = device.SamplerState[0];
renderState = device.RenderState;
// Establish the font and texture size
textureScale = 1.0f; // Draw fonts into texture without scaling
// Large fonts need larger textures
if (ourFontHeight > 60)
{
textureWidth = textureHeight = 2048;
}
else if (ourFontHeight > 30)
{
textureWidth = textureHeight = 1024;
}
else if (ourFontHeight > 15)
{
textureWidth = textureHeight = 512;
}
else
{
textureWidth = textureHeight = 256;
}
// If requested texture is too big, use a smaller texture and smaller font,
// and scale up when rendering.
Direct3D.Caps d3dCaps = device.DeviceCaps;
if (textureWidth > d3dCaps.MaxTextureWidth)
{
textureScale = (float)d3dCaps.MaxTextureWidth / (float)textureWidth;
textureWidth = textureHeight = d3dCaps.MaxTextureWidth;
}
Bitmap bmp = new Bitmap(textureWidth, textureHeight, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
Graphics g = Graphics.FromImage(bmp);
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
g.TextContrast = 0;
string str;
float x = 0;
float y = 0;
Point p = new Point(0, 0);
Size size = new Size(0, 0);
// Calculate the spacing between characters based on line height
size = g.MeasureString(" ", systemFont).ToSize();
x = spacingPerChar = (int)Math.Ceiling(size.Height * 0.3);
for (char c = (char)32; c < (char)127; c++)
{
str = c.ToString();
// We need to do some things here to get the right sizes. The default implemententation of MeasureString
// will return a resolution independant size. For our height, this is what we want. However, for our width, we
// want a resolution dependant size.
Size resSize = g.MeasureString(str, systemFont).ToSize();
size.Height = resSize.Height + 1;
// Now the Resolution independent width
if (c != ' ') // We need the special case here because a space has a 0 width in GenericTypoGraphic stringformats
{
resSize = g.MeasureString(str, systemFont, p, StringFormat.GenericTypographic).ToSize();
size.Width = resSize.Width;
}
else
{
size.Width = resSize.Width;
}
if ((x + size.Width + spacingPerChar) > textureWidth)
{
x = spacingPerChar;
y += size.Height;
}
if (c != ' ') // We need the special case here because a space has a 0 width in GenericTypoGraphic stringformats
{
g.DrawString(str, systemFont, Brushes.White, new Point((int)x, (int)y), StringFormat.GenericTypographic);
}
else
{
g.DrawString(str, systemFont, Brushes.White, new Point((int)x, (int)y));
}
textureCoords[c - 32, 0] = ((float)(x + 0 - spacingPerChar)) / textureWidth;
textureCoords[c - 32, 1] = ((float)(y + 0 + 0)) / textureHeight;
textureCoords[c - 32, 2] = ((float)(x + size.Width + spacingPerChar)) / textureWidth;
textureCoords[c - 32, 3] = ((float)(y + size.Height + 0)) / textureHeight;
x += size.Width + (2 * spacingPerChar);
}
// Create a new texture for the font from the bitmap we just created
fontTexture = Texture.FromBitmap(device, bmp, 0, Pool.Managed);
RestoreDeviceObjects(null, null);
}
/// <summary>
/// Initialize the device objects
/// </summary>
/// <param name="dev">The grpahics device used to initialize</param>
public void InitializeDeviceObjects(Device dev)
{
if (dev != null)
{
// Set up our events
dev.DeviceReset += new System.EventHandler(this.RestoreDeviceObjects);
}
// Keep a local copy of the device
device = dev;
textureState0 = device.TextureState[0];
textureState1 = device.TextureState[1];
samplerState0 = device.SamplerState[0];
renderState = device.RenderState;
// Create a bitmap on which to measure the alphabet
Bitmap bmp = new Bitmap(1, 1, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
Graphics g = Graphics.FromImage(bmp);
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
g.TextContrast = 0;
// Establish the font and texture size
textureScale = 1.0f; // Draw fonts into texture without scaling
// Calculate the dimensions for the smallest power-of-two texture which
// can hold all the printable characters
textureWidth = textureHeight = 128;
for (;;)
{
try {
// Measure the alphabet
PaintAlphabet(g, true);
}
catch (System.InvalidOperationException) {
// Scale up the texture size and try again
textureWidth *= 2;
textureHeight *= 2;
continue;
}
break;
}
// If requested texture is too big, use a smaller texture and smaller font,
// and scale up when rendering.
Direct3D.Caps d3dCaps = device.DeviceCaps;
// If the needed texture is too large for the video card...
if (textureWidth > d3dCaps.MaxTextureWidth)
{
// Scale the font size down to fit on the largest possible texture
textureScale = (float)d3dCaps.MaxTextureWidth / (float)textureWidth;
textureWidth = textureHeight = d3dCaps.MaxTextureWidth;
for (;;)
{
// Create a new, smaller font
ourFontHeight = (int)Math.Floor(ourFontHeight * textureScale);
systemFont = new System.Drawing.Font(systemFont.Name, ourFontHeight, systemFont.Style);
try {
// Measure the alphabet
PaintAlphabet(g, true);
}
catch (System.InvalidOperationException) {
// If that still doesn't fit, scale down again and continue
textureScale *= 0.9F;
continue;
}
break;
}
}
// Release the bitmap used for measuring and create one for drawing
bmp.Dispose();
bmp = new Bitmap(textureWidth, textureHeight, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
g = Graphics.FromImage(bmp);
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.AntiAlias;
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
g.TextContrast = 0;
// Draw the alphabet
PaintAlphabet(g, false);
// Create a new texture for the font from the bitmap we just created
fontTexture = Texture.FromBitmap(device, bmp, 0, Pool.Managed);
RestoreDeviceObjects(null, null);
}
public override void Draw()
{
base.Draw();
System.Diagnostics.Debug.WriteLine("ILDXGraphPlot2D_Draw");
bool antAlias = m_dxPanel.Device.RenderState.AntiAliasedLineEnable;
m_dxPanel.Device.RenderState.AntiAliasedLineEnable = true;
#region draw line
// draw linestrip - simple case - fast vertex rendering
if (m_properties.Style == LineStyle.Solid && m_properties.Width == 1)
{
m_dxPanel.Device.SetStreamSource(0, m_vertexBuffer, 0);
m_dxPanel.Device.VertexFormat = m_vertexBuffer.Description.VertexFormat;
m_dxPanel.Device.DrawPrimitives(m_primitiveType, 0, m_primCount);
}
else if (m_properties.Style == LineStyle.None)
{
}
else
{
// generate line pattern
if (m_properties.Style == LineStyle.UserPattern)
{
m_line.Pattern = m_properties.Pattern;
}
else
{
m_line.Pattern = (int)m_properties.Style;
}
m_line.PatternScale = m_properties.PatternScale;
m_line.Width = m_properties.Width;
// extract points
CustomVertex.PositionColored[] vertices = (CustomVertex.PositionColored[])m_vertexBuffer.Lock(0, 0);
Vector3[] pointCoords = new Vector3[m_Vertcount];
for (int i = 0; i < m_Vertcount; i++)
{
pointCoords[i] = new Vector3(vertices[i].X, vertices[i].Y, vertices[i].Z);
}
m_vertexBuffer.Unlock();
vertices = null;
// extract trafo matrix(/-ces)
Matrix mat = Matrix.Identity;
mat *= m_dxPanel.Device.Transform.World;
mat *= m_dxPanel.Device.Transform.View;
mat *= m_dxPanel.Device.Transform.Projection;
m_line.Antialias = false;
// draw all lines
//m_line.Antialias = true;
m_line.Begin();
for (int i = 0; i < m_primCount; i++)
{
m_line.DrawTransform(pointCoords, mat, m_properties.Color);
}
m_line.End();
}
#endregion
#region draw points
if (m_marker.Style == MarkerStyle.Square)
{
float pSize = m_dxPanel.Device.RenderState.PointSize;
m_dxPanel.Device.RenderState.PointSize = m_marker.Size;
m_dxPanel.Device.SetStreamSource(0, m_vertexBuffer, 0);
m_dxPanel.Device.VertexFormat = m_vertexBuffer.Description.VertexFormat;
m_dxPanel.Device.DrawPrimitives(PrimitiveType.PointList, 0, m_primCount + 1);
m_dxPanel.Device.RenderState.PointSize = pSize;
}
else if (m_marker.Style == MarkerStyle.None)
{
}
else
{
// draw all other marker styles as bitmap
float pSize = m_dxPanel.Device.RenderState.PointSize;
TextureStateManager oldStage = m_dxPanel.Device.TextureState[0];
m_dxPanel.Device.RenderState.PointSize = m_marker.Size;
m_dxPanel.Device.SetTexture(0, m_pointShape);
m_dxPanel.Device.RenderState.PointSpriteEnable = true;
m_dxPanel.Device.RenderState.SourceBlend = Blend.InvSourceColor;
m_dxPanel.Device.RenderState.DestinationBlend = Blend.BothSourceAlpha;
m_dxPanel.Device.RenderState.AlphaBlendEnable = true;
m_dxPanel.Device.SetStreamSource(0, m_vertexBuffer, 0);
m_dxPanel.Device.VertexFormat = m_vertexBuffer.Description.VertexFormat;
m_dxPanel.Device.DrawPrimitives(PrimitiveType.PointList, 0, m_primCount + 1);
m_dxPanel.Device.RenderState.PointSize = pSize;
m_dxPanel.Device.RenderState.AlphaBlendEnable = false;
}
#endregion
m_dxPanel.Device.RenderState.AntiAliasedLineEnable = antAlias;
}
