private void miGDIPerlin_Click(object sender, System.EventArgs e)
{
if (m_spProcedural == null)
{
#region Procedural noise bitmap
Random rnd = new Random();
Endogine.Procedural.Noise procedural = null;
switch (rnd.Next(4))
{
case 0:
procedural = new Endogine.Procedural.Plasma();
procedural.Decay = 0.5f;
procedural.Frequency = 0.1f;
procedural.Octaves = 3;
break;
case 1:
procedural = new Endogine.Procedural.Wood();
procedural.Decay = 0.5f;
procedural.Frequency = 0.1f;
procedural.Octaves = 3;
((Endogine.Procedural.Wood)procedural).NumCircles = 5;
((Endogine.Procedural.Wood)procedural).Turbulence = 0.3f;
break;
case 2:
procedural = new Endogine.Procedural.Marble();
procedural.Decay = 0.5f;
procedural.Frequency = 0.1f;
procedural.Octaves = 3;
((Endogine.Procedural.Marble)procedural).Periods = new EPointF(15, 30);
((Endogine.Procedural.Marble)procedural).Turbulence = 3.3f;
break;
case 3:
procedural = new Endogine.Procedural.Noise();
procedural.Decay = 0.5f;
procedural.Frequency = 1f;
procedural.Octaves = 3;
break;
}
Bitmap bmp;
Graphics g;
bmp = new Bitmap(200, 200);
Endogine.BitmapHelpers.Canvas canvas = Endogine.BitmapHelpers.Canvas.Create(bmp);
//create a color table that makes it look like lakes and mountains:
System.Collections.SortedList aColors = new System.Collections.SortedList();
aColors.Add(0.0, Color.FromArgb(0, 0, 190));
aColors.Add(0.1, Color.FromArgb(0, 0, 255));
aColors.Add(0.11, Color.FromArgb(0, 200, 0));
aColors.Add(0.5, Color.FromArgb(150, 100, 0));
aColors.Add(1.0, Color.FromArgb(255, 255, 255));
procedural.SetColors(aColors);
//write pixels to bitmap:
canvas.Locked = true;
procedural.WriteToBitmap(canvas);
canvas.Locked = false;
#endregion
#region Create gradient bitmap
//Create two gradients using GDI+, and merge them with my CopyPixels for special effects
Bitmap bmpGradient = new Bitmap(200, 200);
g = Graphics.FromImage(bmpGradient);
LinearGradientBrush brush = new LinearGradientBrush(new Rectangle(4, 0, bmpGradient.Width, bmpGradient.Height), Color.FromArgb(255, 0, 0), Color.FromArgb(0, 255, 0), 0f);
g.FillRectangle(brush, brush.Rectangle);
Bitmap bmp2 = new Bitmap(bmpGradient.Width, bmpGradient.Height);
brush = new LinearGradientBrush(new Rectangle(0, 0, bmp2.Width, bmp2.Height), Color.FromArgb(0, 0, 255), Color.FromArgb(0, 0, 0), (float)90);
Graphics g2 = Graphics.FromImage(bmp2);
g2.FillRectangle(brush, brush.Rectangle);
RasterOps.CopyPixels(bmpGradient, bmp2, (int)RasterOps.ROPs.AddPin, 255);
RasterOps.CopyPixels(bmp, bmpGradient, (int)RasterOps.ROPs.Lightest, 255);
g.Dispose();
#endregion
MemberSpriteBitmap mb = new MemberSpriteBitmap(bmp);
m_spProcedural = new Sprite();
m_spProcedural.Name = "Procedural";
m_spProcedural.Member = mb;
m_spProcedural.Scaling = new EPointF(2, 2);
m_spProcedural.Ink = 0;
}
else
{
//TODO: the bitmap will still remain in memory, should have an "autodispose" option,
//so that resources gets disposed when no sprites are using them
m_spProcedural.Dispose();
m_spProcedural = null;
}
}
public static extern bool StretchBlt(IntPtr hdc, int nXDest, int nYDest, int nWidthDest, int nHeightDest,
IntPtr hdcSrc, int nXSrc, int nYSrc, int nWidthSrc, int nHeightSrc, RasterOps dwRop);
public override void SubDraw()
{
ERectangleF rctDraw = _sp.CalcRectInDrawTarget();
//attribs.SetColorMatrix(new ColorMatrix(), ColorMatrixFlag.Default, ColorAdjustType.Bitmap);
if (_sp.Ink == RasterOps.ROPs.Copy || _sp.Ink == RasterOps.ROPs.BgTransparent || _sp.DrawToSprite == null) //TODO: allow RasterOps on root sprite.
//if (false)
{
if (_sp.Rect.Width <= 0 || _sp.Rect.Height <= 0)
{
return;
}
PointF ulCorner1 = new PointF(rctDraw.X, rctDraw.Y);
PointF urCorner1 = new PointF(rctDraw.OppositeX, rctDraw.Y);
PointF llCorner1 = new PointF(rctDraw.X, rctDraw.OppositeY);
PointF[] destPara1 = { ulCorner1, urCorner1, llCorner1 };
ERectangle rctSrc = _sp.SourceRect; //m_sp.Member.GetRectForFrame(m_sp.MemberAnimationFrame);
//RectangleF rctfCropped = m_sp.GetPortionOfMemberToDisplay();
//g.FillRectangle(new SolidBrush(Color.Red), rctDraw);
Graphics g = Graphics.FromImage(_sp.DrawToSprite.Member.Bitmap);
ImageAttributes attribs = new ImageAttributes();
attribs.SetWrapMode(WrapMode.Tile);
if (_sp.Ink == RasterOps.ROPs.BgTransparent)
{
attribs.SetColorKey(_sp.Member.ColorKey, _sp.Member.ColorKey);
}
g.SmoothingMode = SmoothingMode.None;
g.CompositingMode = CompositingMode.SourceOver;
g.CompositingQuality = CompositingQuality.Invalid;
g.DrawImage(_sp.Member.Bitmap, destPara1, rctSrc.ToRectangleF(), GraphicsUnit.Pixel, attribs);
g.Dispose();
}
else
{
//since it's difficult to write a RasterOp algorithm that both does effects and scales/interpolates properly,
//I cheat by creating a temporary scaled bitmap
if (_sp.Rect.ToERectangle().Width <= 0 || _sp.Rect.ToERectangle().Height <= 0)
{
return;
}
Bitmap bmp = _sp.Member.Bitmap;
ERectangle rctSrc = _sp.SourceRect;
if (_sp.Scaling.X != 1 || _sp.Scaling.Y != 1 || _sp.Color != Color.White)
{
//TODO: other/faster resizing algorithms at
//http://www.codeproject.com/csharp/ImgResizOutperfGDIPlus.asp
rctSrc = _sp.Rect.ToERectangle();
rctSrc.Offset(-rctSrc.X, -rctSrc.Y);
bmp = new Bitmap(_sp.Rect.ToERectangle().Width, _sp.Rect.ToERectangle().Height, _sp.Member.Bitmap.PixelFormat); //m_sp.Member.Bitmap, new Size(m_sp.RectInt.Width, m_sp.RectInt.Height));
Graphics g = Graphics.FromImage(bmp);
ImageAttributes attribs = new ImageAttributes();
ColorMatrix colorMatrix = new ColorMatrix();
colorMatrix.Matrix00 = (float)_sp.Color.R / 255;
colorMatrix.Matrix11 = (float)_sp.Color.G / 255;
colorMatrix.Matrix22 = (float)_sp.Color.B / 255;
colorMatrix.Matrix33 = 1.00f; // alpha
colorMatrix.Matrix44 = 1.00f; // w
attribs.SetColorMatrix(colorMatrix);
g.DrawImage(_sp.Member.Bitmap, rctSrc.ToRectangle(),
_sp.SourceRect.X, _sp.SourceRect.Y, _sp.SourceRect.Width, _sp.SourceRect.Height,
GraphicsUnit.Pixel, attribs);
g.Dispose();
}
RasterOps.CopyPixels(_sp.DrawToSprite.Member.Bitmap, bmp,
rctDraw, rctSrc, _sp.DrawToSprite.SourceRect, (int)_sp.Ink, _sp.Blend);
}
}
public static extern bool BitBlt(IntPtr hdc, int nXDest, int nYDest, int nWidth, int nHeight,
IntPtr hdcSrc, int nXSrc, int nYSrc, RasterOps dwRop);