public void DrawGeometry(GLGeometry geo, GLBrush brush, float lineWidth = 1.0f)
{
GL.PushMatrix();
if (lineWidth == 1.0f)
{
AddHalfPixelOffset();
}
GL.Enable(EnableCap.LineSmooth);
GL.Color4(brush.Color0);
#if FAMISTUDIO_LINUX
if (!supportsLineWidth && lineWidth > 1)
{
var pts = new float[geo.Points.Length * 2 + (geo.Closed ? 2 : 0)];
for (int i = 0; i < geo.Points.GetLength(0); i++)
{
pts[i * 2 + 0] = geo.Points[i, 0];
pts[i * 2 + 1] = geo.Points[i, 1];
}
if (geo.Closed)
{
pts[geo.Points.Length * 2 + 0] = geo.Points[0, 0];
pts[geo.Points.Length * 2 + 1] = geo.Points[0, 1];
}
DrawThickLineAsPolygon(pts, brush, lineWidth);
}
else
#endif
{
GL.LineWidth(lineWidth);
GL.EnableClientState(ArrayCap.VertexArray);
GL.VertexPointer(2, VertexPointerType.Float, 0, geo.Points);
GL.DrawArrays(geo.Closed ? BeginMode.LineLoop : BeginMode.LineStrip, 0, geo.Points.GetLength(0));
GL.DisableClientState(ArrayCap.VertexArray);
}
GL.Disable(EnableCap.LineSmooth);
GL.PopMatrix();
}
public void FillGeometry(GLGeometry geo, GLBrush brush, bool smooth = false)
{
if (!brush.IsGradient)
{
if (smooth)
{
GL.Enable(EnableCap.PolygonSmooth);
}
GL.Color4(brush.Color0);
GL.EnableClientState(ArrayCap.VertexArray);
GL.VertexPointer(2, VertexPointerType.Float, 0, geo.Points);
GL.DrawArrays(BeginMode.TriangleFan, 0, geo.Points.GetLength(0));
GL.DisableClientState(ArrayCap.VertexArray);
if (smooth)
{
GL.Disable(EnableCap.PolygonSmooth);
}
}
else
{
Debug.Assert(brush.GradientSizeX == 0.0f);
GL.Begin(BeginMode.TriangleFan);
for (int i = 0; i < geo.Points.GetLength(0); i++)
{
float lerp = geo.Points[i, 1] / (float)brush.GradientSizeY;
byte r = (byte)(brush.Color0.R * (1.0f - lerp) + (brush.Color1.R * lerp));
byte g = (byte)(brush.Color0.G * (1.0f - lerp) + (brush.Color1.G * lerp));
byte b = (byte)(brush.Color0.B * (1.0f - lerp) + (brush.Color1.B * lerp));
byte a = (byte)(brush.Color0.A * (1.0f - lerp) + (brush.Color1.A * lerp));
GL.Color4(r, g, b, a);
GL.Vertex2(geo.Points[i, 0], geo.Points[i, 1]);
}
GL.End();
}
}
public void FillAndDrawGeometry(GLGeometry geo, GLBrush fillBrush, GLBrush lineBrush, float lineWidth = 1.0f)
{
FillGeometry(geo, fillBrush);
DrawGeometry(geo, lineBrush, lineWidth);
}