/// <summary>
/// Performs an object lookup in the picking map that was rendered last
/// time <see cref="RenderSetup.RenderPointOfView"/> was called.
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <param name="w"></param>
/// <param name="h"></param>
public IEnumerable <ICmpRenderer> LookupPickingMap(int x, int y, int w, int h)
{
if (this.pickingBuffer == null)
{
return(Enumerable.Empty <ICmpRenderer>());
}
if ((x + w) + (y + h) * this.pickingTex.ContentWidth >= this.pickingBuffer.Length)
{
return(Enumerable.Empty <ICmpRenderer>());
}
Rect dstRect = new Rect(x, y, w, h);
Rect availRect = new Rect(this.pickingTex.ContentSize);
if (!dstRect.Intersects(availRect))
{
return(Enumerable.Empty <ICmpRenderer>());
}
dstRect = dstRect.Intersection(availRect);
x = Math.Max((int)dstRect.X, 0);
y = Math.Max((int)dstRect.Y, 0);
w = Math.Min((int)dstRect.W, this.pickingTex.ContentWidth - x);
h = Math.Min((int)dstRect.H, this.pickingTex.ContentHeight - y);
HashSet <ICmpRenderer> result = new HashSet <ICmpRenderer>();
int rendererIdLast = 0;
for (int j = 0; j < h; ++j)
{
int offset = 4 * (x + (y + j) * this.pickingTex.ContentWidth);
for (int i = 0; i < w; ++i)
{
int rendererId =
(this.pickingBuffer[offset] << 16) |
(this.pickingBuffer[offset + 1] << 8) |
(this.pickingBuffer[offset + 2] << 0);
if (rendererId != rendererIdLast)
{
if (rendererId - 1 > this.pickingMap.Count)
{
Logs.Core.WriteWarning("Unexpected picking result: {0}", ColorRgba.FromIntArgb(rendererId));
}
else if (rendererId != 0 && !(this.pickingMap[rendererId - 1] as Component).Disposed)
{
result.Add(this.pickingMap[rendererId - 1]);
}
rendererIdLast = rendererId;
}
offset += 4;
}
}
return(result);
}
/// <summary>
/// Picks the <see cref="Duality.ICmpRenderer"/> that owns the pixel at the specified position.
/// The resulting information is only accurate if <see cref="RenderPickingMap"/> has been called this frame.
/// </summary>
/// <param name="x">x-Coordinate of the pixel to check.</param>
/// <param name="y">y-Coordinate of the pixel to check.</param>
/// <returns>The <see cref="Duality.ICmpRenderer"/> that owns the pixel.</returns>
public ICmpRenderer PickRendererAt(int x, int y)
{
if (this.pickingBuffer == null)
{
return(null);
}
if (x < 0 || x >= this.pickingTex.PixelWidth)
{
return(null);
}
if (y < 0 || y >= this.pickingTex.PixelHeight)
{
return(null);
}
x = MathF.Clamp(x, 0, this.pickingTex.PixelWidth - 1);
y = MathF.Clamp(y, 0, this.pickingTex.PixelHeight - 1);
int baseIndex = 4 * (x + y * this.pickingTex.PixelWidth);
if (baseIndex + 4 >= this.pickingBuffer.Length)
{
return(null);
}
int rendererId =
(this.pickingBuffer[baseIndex + 0] << 16) |
(this.pickingBuffer[baseIndex + 1] << 8) |
(this.pickingBuffer[baseIndex + 2] << 0);
if (rendererId > this.pickingMap.Count)
{
Log.Core.WriteWarning("Unexpected picking result: {0}", ColorRgba.FromIntArgb(rendererId));
return(null);
}
else if (rendererId != 0)
{
if ((this.pickingMap[rendererId - 1] as Component).Disposed)
{
return(null);
}
else
{
return(this.pickingMap[rendererId - 1]);
}
}
else
{
return(null);
}
}
/// <summary>
/// Performs an object lookup in the picking map that was rendered last
/// time <see cref="RenderSetup.RenderPointOfView"/> was called.
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
/// <returns></returns>
public ICmpRenderer LookupPickingMap(int x, int y)
{
if (this.pickingBuffer == null)
{
return(null);
}
if (x < 0 || x >= this.pickingTex.ContentWidth)
{
return(null);
}
if (y < 0 || y >= this.pickingTex.ContentHeight)
{
return(null);
}
int baseIndex = 4 * (x + y * this.pickingTex.ContentWidth);
if (baseIndex + 4 >= this.pickingBuffer.Length)
{
return(null);
}
int rendererId =
(this.pickingBuffer[baseIndex + 0] << 16) |
(this.pickingBuffer[baseIndex + 1] << 8) |
(this.pickingBuffer[baseIndex + 2] << 0);
if (rendererId > this.pickingMap.Count)
{
App.Log("Unexpected picking result: {0}", ColorRgba.FromIntArgb(rendererId));
return(null);
}
else if (rendererId != 0)
{
if ((this.pickingMap[rendererId - 1] as Component).Disposed)
{
return(null);
}
else
{
return(this.pickingMap[rendererId - 1]);
}
}
else
{
return(null);
}
}
/// <summary>
/// Picks all <see cref="Duality.ICmpRenderer">ICmpRenderers</see> contained within the specified
/// rectangular area.
/// </summary>
/// <param name="x">x-Coordinate of the Rect.</param>
/// <param name="y">y-Coordinate of the Rect.</param>
/// <param name="w">Width of the Rect.</param>
/// <param name="h">Height of the Rect.</param>
/// <param name="viewportRect">The viewport area to which will be rendered.</param>
/// <returns>A set of all <see cref="Duality.ICmpRenderer">ICmpRenderers</see> that have been picked.</returns>
public HashSet <ICmpRenderer> PickRenderersIn(Rect viewportRect, int x, int y, int w, int h)
{
Rect dstRect = new Rect(x, y, w, h);
if (!dstRect.Intersects(viewportRect))
{
return(new HashSet <ICmpRenderer>());
}
dstRect = dstRect.Intersection(viewportRect);
dstRect.X -= viewportRect.X;
dstRect.Y -= viewportRect.Y;
this.RenderPickingMap(viewportRect.Size);
x = Math.Max((int)dstRect.X, 0);
y = Math.Max((int)dstRect.Y, 0);
w = Math.Min((int)dstRect.W, this.pickingTex.PixelWidth - x);
h = Math.Min((int)dstRect.H, this.pickingTex.PixelHeight - y);
HashSet <ICmpRenderer> result = new HashSet <ICmpRenderer>();
int rendererIdLast = 0;
for (int j = 0; j < h; ++j)
{
int offset = 4 * (x + (y + j) * this.pickingTex.PixelWidth);
for (int i = 0; i < w; ++i)
{
int rendererId = (this.pickingBuffer[offset] << 16) |
(this.pickingBuffer[offset + 1] << 8) |
(this.pickingBuffer[offset + 2] << 0);
if (rendererId != rendererIdLast)
{
if (rendererId - 1 > this.pickingMap.Count)
{
Log.Core.WriteWarning("Unexpected picking result: {0}", ColorRgba.FromIntArgb(rendererId));
}
else if (rendererId != 0 && !(this.pickingMap[rendererId - 1] as Component).Disposed)
{
result.Add(this.pickingMap[rendererId - 1]);
}
rendererIdLast = rendererId;
}
offset += 4;
}
}
return(result);
}
/// <summary>
/// Picks the <see cref="Duality.ICmpRenderer"/> that owns the pixel at the specified position.
/// </summary>
/// <param name="x">x-Coordinate of the pixel to check.</param>
/// <param name="y">y-Coordinate of the pixel to check.</param>
/// <param name="viewportRect">The viewport area to which will be rendered.</param>
/// <returns>The <see cref="Duality.ICmpRenderer"/> that owns the pixel.</returns>
public ICmpRenderer PickRendererAt(Rect viewportRect, int x, int y)
{
if (x < viewportRect.LeftX || x >= viewportRect.RightX)
{
return(null);
}
if (y < viewportRect.TopY || y >= viewportRect.BottomY)
{
return(null);
}
this.RenderPickingMap(viewportRect.Size);
x = MathF.Clamp(x - (int)viewportRect.X, 0, this.pickingTex.PixelWidth - 1);
y = MathF.Clamp(y - (int)viewportRect.Y, 0, this.pickingTex.PixelHeight - 1);
int rendererId =
(this.pickingBuffer[4 * (x + y * this.pickingTex.PixelWidth) + 0] << 16) |
(this.pickingBuffer[4 * (x + y * this.pickingTex.PixelWidth) + 1] << 8) |
(this.pickingBuffer[4 * (x + y * this.pickingTex.PixelWidth) + 2] << 0);
if (rendererId > this.pickingMap.Count)
{
Log.Core.WriteWarning("Unexpected picking result: {0}", ColorRgba.FromIntArgb(rendererId));
return(null);
}
else if (rendererId != 0)
{
if ((this.pickingMap[rendererId - 1] as Component).Disposed)
{
return(null);
}
else
{
return(this.pickingMap[rendererId - 1]);
}
}
else
{
return(null);
}
}
/// <summary>
/// Picks the <see cref="Duality.ICmpRenderer"/> that owns the pixel at the specified position.
/// </summary>
/// <param name="x">x-Coordinate of the pixel to check.</param>
/// <param name="y">y-Coordinate of the pixel to check.</param>
/// <returns>The <see cref="Duality.ICmpRenderer"/> that owns the pixel.</returns>
public ICmpRenderer PickRendererAt(int x, int y)
{
if (x < 0 || x >= DualityApp.TargetResolution.X)
{
return(null);
}
if (y < 0 || y >= DualityApp.TargetResolution.Y)
{
return(null);
}
this.RenderPickingMap();
x = MathF.Clamp(x, 0, this.pickingTex.PixelWidth - 1);
y = MathF.Clamp(y, 0, this.pickingTex.PixelHeight - 1);
int rendererId =
(this.pickingBuffer[4 * (x + y * this.pickingTex.PixelWidth) + 0] << 16) |
(this.pickingBuffer[4 * (x + y * this.pickingTex.PixelWidth) + 1] << 8) |
(this.pickingBuffer[4 * (x + y * this.pickingTex.PixelWidth) + 2] << 0);
if (rendererId > this.pickingMap.Count)
{
Log.Core.WriteWarning("Unexpected picking result: {0}", ColorRgba.FromIntArgb(rendererId));
return(null);
}
else if (rendererId != 0)
{
if ((this.pickingMap[rendererId - 1] as Component).Disposed)
{
return(null);
}
else
{
return(this.pickingMap[rendererId - 1]);
}
}
else
{
return(null);
}
}
/// <summary>
/// Picks all <see cref="Duality.ICmpRenderer">ICmpRenderers</see> contained within the specified
/// rectangular area.
/// </summary>
/// <param name="x">x-Coordinate of the Rect.</param>
/// <param name="y">y-Coordinate of the Rect.</param>
/// <param name="w">Width of the Rect.</param>
/// <param name="h">Height of the Rect.</param>
/// <returns>A set of all <see cref="Duality.ICmpRenderer">ICmpRenderers</see> that have been picked.</returns>
public HashSet <ICmpRenderer> PickRenderersIn(int x, int y, int w, int h)
{
Rect dstRect = new Rect(x, y, w, h);
Rect srcRect = new Rect(DualityApp.TargetResolution);
if (!dstRect.Intersects(srcRect))
{
return(new HashSet <ICmpRenderer>());
}
dstRect = dstRect.Intersection(srcRect);
this.RenderPickingMap();
x = Math.Max((int)dstRect.X, 0);
y = Math.Max((int)dstRect.Y, 0);
w = Math.Min((int)dstRect.W, this.pickingTex.PixelWidth - x);
h = Math.Min((int)dstRect.H, this.pickingTex.PixelHeight - y);
HashSet <ICmpRenderer> result = new HashSet <ICmpRenderer>();
int rendererIdLast = 0;
unsafe
{
fixed(byte *pDataBegin = this.pickingBuffer)
{
for (int j = 0; j < h; ++j)
{
byte *pData = pDataBegin + 4 * (x + (y + j) * this.pickingTex.PixelWidth);
for (int i = 0; i < w; ++i)
{
int rendererId = (*pData << 16) |
(*(pData + 1) << 8) |
(*(pData + 2) << 0);
if (rendererId != rendererIdLast)
{
if (rendererId - 1 > this.pickingMap.Count)
{
Log.Core.WriteWarning("Unexpected picking result: {0}", ColorRgba.FromIntArgb(rendererId));
}
else if (rendererId != 0 && !(this.pickingMap[rendererId - 1] as Component).Disposed)
{
result.Add(this.pickingMap[rendererId - 1]);
}
rendererIdLast = rendererId;
}
pData += 4;
}
}
}
}
return(result);
}
