private void OnValidate()
{
Texture2D sourceTexture = (Texture2D)sourceImage.texture;
Color[] data = sourceTexture.GetPixels();
DownSampledImage downSampledImage = DownSampling.CompressImage(data);
byte[] uncompressedData = DownSampling.DecompressImage(downSampledImage);
Texture2D tex = new Texture2D(sourceImage.texture.width, sourceImage.texture.height, TextureFormat.RGBA32, false);
tex.LoadRawTextureData(uncompressedData);
tex.Apply();
targetImage.texture = tex;
}
private Texture2D getUncompressedTextureFromBytes(byte[] byteArray)
{
byte compressionRate = byteArray[byteArray.Length - 1];
byteArray = byteArray.Take(byteArray.Count() - 1).ToArray();
DownSampledImage image = new DownSampledImage(byteArray, compressionRate);
byte[] uncompressedData = DownSampling.DecompressImage(image);
int rowSize = (int)Mathf.Sqrt(byteArray.Length) * compressionRate;
Texture2D tex = new Texture2D(rowSize, rowSize, TextureFormat.RGBA32, false);
tex.LoadRawTextureData(uncompressedData);
tex.Apply();
return(tex);
}
public void SendImageToMaster(RawImage image, string playerNickname)
{
Texture2D sourceTexture = (Texture2D)image.texture;
Color[] data = sourceTexture.GetPixels();
DownSampledImage downSampledImage = DownSampling.CompressImage(data);
byte[] byteArray = new byte[downSampledImage.data.Length + 1];
for (int i = 0; i < byteArray.Length; i++)
{
if (i == byteArray.Length - 1)
{
byteArray[i] = downSampledImage.comppresionRate;
break;
}
byteArray[i] = downSampledImage.data[i];
}
photonView.RPC("ReceiveImageFromPlayer", RpcTarget.MasterClient, byteArray as object, playerNickname);
}
public DownSamplingProFunctionChart(ChartView BaseChart)
{
points = new Points();
line = new Line();
downSampling = new DownSampling();
var = new Variables.Variables();
BaseChart.Chart.Title.Text = "Downsampling";
BaseChart.Chart.Axes.Left.Automatic = true;
BaseChart.Chart.Axes.Left.Ticks.Transparency = 100;
BaseChart.Chart.Axes.Bottom.Automatic = true;
BaseChart.Chart.Axes.Left.Increment = 200;
points.FillSampleValues(500);
points.Title = "Data";
points.Color = var.GetPaletteBasic[0];
points.Pointer.VertSize -= 2;
points.Pointer.HorizSize -= 2;
points.Pointer.Style = PointerStyles.Triangle;
points.Marks.Transparency = 100;
line.DataSource = points;
line.Function = downSampling;
line.Title = "Reduced Data";
line.LinePen.Width = 3;
line.Color = var.GetPaletteBasic[1];
line.Marks.DrawEvery = 3;
downSampling.Tolerance = 10;
downSampling.DisplayedPointCount = 0;
downSampling.Period = 1;
downSampling.Method = DownSamplingMethod.Average;
BaseChart.Chart.Series.Add(points);
BaseChart.Chart.Series.Add(line);
}
public void Update
(
Texture sourceTexture, float sourceValueThreshold,
DownSampling downSampling = DownSampling.None, Precision precision = Precision._32,
bool _showSource = false
)
{
if (!sourceTexture)
{
return;
}
if (!_computeShader)
{
_computeShader = Object.Instantiate <ComputeShader>(Resources.Load <ComputeShader>(nameof(SDFTextureGenerator) + "Compute"));
_computeShader.hideFlags = HideFlags.HideAndDontSave;
_seedKernel = _computeShader.FindKernel("Seed");
_floodKernel = _computeShader.FindKernel("Flood");
_distKernel = _computeShader.FindKernel("Dist");
_showSeedsKernel = _computeShader.FindKernel("ShowSeeds");
}
Vector2Int resolution = new Vector2Int(sourceTexture.width, sourceTexture.height);
switch (downSampling)
{
case DownSampling.Half: resolution /= 2; break;
case DownSampling.Quater: resolution /= 4; break;
}
GraphicsFormat sdfFormat = precision == Precision._32 ? GraphicsFormat.R32_SFloat : GraphicsFormat.R16_SFloat;
if (!_sdfTexture || _sdfTexture.width != resolution.x || _sdfTexture.height != resolution.y || _sdfTexture.graphicsFormat != sdfFormat)
{
if (_sdfTexture)
{
_sdfTexture.Release();
}
_sdfTexture = new RenderTexture(resolution.x, resolution.y, 0, sdfFormat, 0);
_sdfTexture.name = "SDFTexture";
_sdfTexture.autoGenerateMips = false;
_sdfTexture.enableRandomWrite = true;
_sdfTexture.Create();
}
if (!_jfaTexture || _jfaTexture.width != resolution.x || _jfaTexture.height != resolution.y)
{
if (_jfaTexture)
{
_jfaTexture.Release();
}
//_jfaTexture = new RenderTexture( resolution.x, resolution.y, 0, GraphicsFormat.R16G16B16A16_SInt, 0 );
_jfaTexture = new RenderTexture(resolution.x, resolution.y, 0, RenderTextureFormat.ARGBInt, RenderTextureReadWrite.Linear);
_jfaTexture.name = "JFATexture";
_jfaTexture.autoGenerateMips = false;
_jfaTexture.enableRandomWrite = true;
_jfaTexture.Create();
_computeShader.SetTexture(_seedKernel, "_FloodTex", _jfaTexture);
_computeShader.SetTexture(_floodKernel, "_FloodTex", _jfaTexture);
_computeShader.SetTexture(_distKernel, "_FloodTexRead", _jfaTexture);
}
_computeShader.SetTexture(_seedKernel, ShaderIDs.seedTexRead, sourceTexture);
_computeShader.SetTexture(_distKernel, ShaderIDs.sdfTex, _sdfTexture);
// Seed.
_computeShader.SetTexture(_seedKernel, ShaderIDs.seedTexRead, sourceTexture);
_computeShader.SetVector(ShaderIDs.texelSize, _sdfTexture.texelSize);
_computeShader.SetFloat(ShaderIDs.seedThreshold, sourceValueThreshold);
_computeShader.Dispatch(_seedKernel, resolution.x, resolution.y, 1);
//Debug.Log( "Dispatch: " + resolution.x + "x" + resolution.y );
// Show seeds.
if (_showSource)
{
_computeShader.SetTexture(_showSeedsKernel, ShaderIDs.floodTexRead, _jfaTexture);
_computeShader.SetTexture(_showSeedsKernel, ShaderIDs.sdfTex, _sdfTexture);
_computeShader.Dispatch(_showSeedsKernel, resolution.x, resolution.y, 1);
return;
}
// Flood.
int sizeMax = Mathf.Max(resolution.x, resolution.y);
int stepMax = (int)Mathf.Log(Mathf.NextPowerOfTwo(sizeMax), 2); // 2^c_maxSteps is max image size on x and y
for (int n = stepMax; n >= 0; n--)
{
int stepSize = n > 0 ? (int)Mathf.Pow(2, n) : 1;
_computeShader.SetInt(ShaderIDs.stepSize, stepSize);
_computeShader.Dispatch(_floodKernel, resolution.x, resolution.y, 1);
}
// Compute SDF.
_computeShader.Dispatch(_distKernel, resolution.x, resolution.y, 1);
}
