/// <summary>
/// Draw waveform. Argument's units are grid divisions (GD)
/// </summary>
/// <param name="channel">Channel</param>
/// <param name="smpBeg">Index of first sample</param>
/// <param name="smpEnd">Index of last sample</param>
/// <param name="pxStart">Start pixel</param>
/// <param name="pxPerSample">Pixels per sample</param>
/// <param name="color">Waveform color</param>
public void PlotFloatLogic(
OscChannel channel,
int smpBeg,
int smpEnd,
float pxStart,
float pxPerSample,
Color color)
{
// do not render empty buffer
const int CHAR_OFFSET_Y = -10;
const int CHAR_OFFSET_X = -66;
var position = channel.Position;
var texCenterY = oscSettings.textureCenter.y;
var pixPerDivs = oscSettings.pixelsPerDivision;
var topY = Mathf.RoundToInt((position + channel.Scale) * pixPerDivs + texCenterY);
var botY = Mathf.RoundToInt(position * pixPerDivs + texCenterY);
// first sample position
var fpx = pxStart;
var x1 = Mathf.RoundToInt(pxStart - pxPerSample);
var v1 = (int)(channel.GetFloat(smpBeg - 1) - position);
// iterate over all samples (starts from sample 2)
for (var i = smpBeg; i <= smpEnd; i++)
{
var x2 = Mathf.RoundToInt(fpx);
var v2 = (int)(channel.GetFloat(i) - position);
if (v1 == v2)
{
if (i != smpEnd)
{
v1 = v2;
fpx += pxPerSample;
continue; // skip
}
else
{
// horizontal lines
OscUtils.PlotLine(screenTexture, x1, topY, x2 - 1, topY, color);
OscUtils.PlotLine(screenTexture, x1, botY, x2 - 1, botY, color);
return;
}
}
// horizontal lines
OscUtils.PlotLine(screenTexture, x1, topY, x2 - 2, topY, color);
OscUtils.PlotLine(screenTexture, x1, botY, x2 - 2, botY, color);
// cross over lines
OscUtils.PlotLine(screenTexture, x2 - 2, topY, x2, botY, color);
OscUtils.PlotLine(screenTexture, x2 - 2, botY, x2, topY, color);
// display value (previous value)
OscFont.DrawText(screenTexture, v1.ToString("x8"), x2 + CHAR_OFFSET_X, botY + CHAR_OFFSET_Y, color);
x1 = x2;
v1 = v2;
fpx += pxPerSample;
}
}
/// <summary>
/// Draw marker at the x,y position in the division units
/// </summary>
/// <param name="text"></param>
/// <param name="color"></param>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="scale">Vertical scale</param>
/// <param name="position">Vertical position</param>
/// <param name="clampPosition">If label does not fit on screen render it with blinking</param>
public void DrawLabel(string text, float x, float y, Color color, bool clampPosition = false)
{
var pxX = oscSettings.GetPixelPositionIntX(x);
var pxY = oscSettings.GetPixelPositionIntY(y);
var isNotFit = !oscSettings.TestPixelInsideScreenY(pxY);
if (isNotFit)
{
// if the label outside it modify name
if (clampPosition)
{
pxY = oscSettings.ClampPixelInsideScreenY(pxY);
text += '!'; // mark it clamped
}
else
{
return; // do not render label outside
}
}
// Render little cross hor. and vert. lines.
OscUtils.PlotLine(screenTexture, pxX, pxY, pxX + 16, pxY, color);
OscUtils.PlotLine(screenTexture, pxX, pxY - 8, pxX, pxY + 8, color);
// Render text (if text is not fit move it below the line)
const int CHAR_HEIGHT = 8;
const int CHAR_OFFSET = 2;
if (pxY < oscSettings.textureSize.y - (CHAR_HEIGHT + CHAR_OFFSET))
{
// fit on screen
OscFont.DrawText(screenTexture, text, pxX + 1, pxY + CHAR_OFFSET, color);
}
else
{
// does not fit on screen
OscFont.DrawText(screenTexture, text, pxX + 1, pxY - (CHAR_HEIGHT + CHAR_OFFSET), color);
}
}
