/*
* Set Texture Data. Setting a pixel out of bound does nothing
*/
protected void SetPixel(int x, int y, HColor pixel)
{
if (IndexInBounds(x, y))
{
m_pixels[ToArrayCoords(x, y)] = pixel;
}
}
/// <summary>
/// Set Data from Texture2D
/// </summary>
private bool SetPixels(Texture2D source)
{
if (!TextureOperations.IsReadableWritable(source))
{
Console.LogError("TexturePixelSource GetData(): source Texture2D(" + source.name + ") is compressed and therefore not readable");
return(false);
}
else
{
// If the source is not the desired size resize it
if (source.width != Width || source.height != Height)
{
source = TextureOperations.ResizeTexture(source, Width, Height);
}
// Get Mip level 0 pixels
for (int x = 0; x < Width; ++x)
{
for (int y = 0; y < Height; ++y)
{
mPixels[(y * Width) + x] = new HColor(source.GetPixel(x, y));
}
}
return(true);
}
}
// ** SINGLE PIXEL BLEND FUNCTIONS ** //
/*
* Pixel2 is the 'top' pixel, Pixel1 is the bottom
*/
static public HColor BlendPixelsLayer(HColor pixel1, HColor pixel2)
{
float a = pixel2.a / 255f;
float aComplement = 1 - (pixel2.a / 255f);
byte r = (byte)((pixel1.r * aComplement) + (pixel2.r * a));
byte g = (byte)((pixel1.g * aComplement) + (pixel2.g * a));
byte b = (byte)((pixel1.b * aComplement) + (pixel2.b * a));
return(new HColor(r, g, b, pixel2.a));
}
/* Filter a pixel based on some parameters and return a color value */
public override HColor FilterPixel(HColor source)
{
HSVA pixel = HueSaturationValue.ColorToHSV(source);
pixel.h = (pixel.h + mHSVA.h) % 360;
pixel.s = Mathf.Clamp01(pixel.s + mHSVA.s);
pixel.v = Mathf.Clamp01(pixel.v * mHSVA.v);
pixel.a = Mathf.Clamp01(pixel.a * mHSVA.a);
return(HueSaturationValue.HSVToHColor(pixel));
}
/* Filter a pixel based on some parameters and return a color value */
public override HColor FilterPixel(HColor source)
{
HSVA pixel = HueSaturationValue.ColorToHSV(source);
/* Set the source pixel Hue */
pixel.h = mHSVA.h;
pixel.s = pixel.s * mHSVA.s;
pixel.v = pixel.v * mHSVA.v;
/* Apply alpha as a multiplier */
pixel.a *= mHSVA.a;
return(HueSaturationValue.HSVToHColor(pixel));
}
/*
* We combine the layers using a Top down per pixel approach
* for each pixel we traverse down
* the layers but only if the lower layer's pixel is visible
*/
protected virtual void FlattenDirtyPixels(int interval, int offset)
{
int startX = (int)mDirtyPixels.x + offset;
int startY = (int)mDirtyPixels.y;
int endX = (int)mDirtyPixels.x + (int)mDirtyPixels.width;
int endY = (int)mDirtyPixels.y + (int)mDirtyPixels.height;
// For each Dirty Pixel
for (int x = startX; x < endX; x += interval)
{
for (int y = startY; y < endY; ++y)
{
mResultTexture.SetPixel(x, y, HColor.ToUnityColor(FlattenPixel(x, y, mLayers.Count, mLayers)));
}
}
}
/// <summary>
/// Flatten a Pixel of the Complex Texture. Recurse down the layers and combine pixels
/// </summary>
protected HColor FlattenPixel(int x, int y, int level, List <PixelSourceLayer> layers)
{
// Base Case 1
switch (level)
{
case 0:
return(new HColor(0, 0, 0, 0));
case 1:
return(layers[0][x, y]);
default:
PixelSourceLayer currentLayer = layers[level - 1];
// Optimization 1: Out of PixelSource Bounds
// If we are out of bounds for this layer don't bother Blending Pixels, go to next layer
if (!currentLayer.IndexInBounds(x, y))
{
return(FlattenPixel(x, y, level - 1, layers));
}
HColor pixel = currentLayer[x, y];
Pixel.PixelBlendMode blendMode = currentLayer.PixelBlendMode;
// Optimization 2
// If layer Blendmode == Layer, and alpha is 1, get the hell out of here
if (blendMode == Pixel.PixelBlendMode.Layer)
{
// Quick Exit
if (pixel.a == 255)
{
return(pixel);
}
// If 100% transparent go down to next layer
if (pixel.a == 0)
{
return(FlattenPixel(x, y, level - 1, layers));
}
}
// Else recurse down and combine pixel with the result of the lower pixel
Pixel.BlendPixels blendFunction = Pixel.GetBlendFunction(blendMode);
return(blendFunction(FlattenPixel(x, y, level - 1, layers), pixel));
}
}
/*
* We combine the layers using a Top down per pixel approach
* for each pixel we traverse down
* the layers but only if the lower layer's pixel is visible
*/
protected override void FlattenDirtyPixels(int interval, int offset)
{
// for each zone
List <PixelSourceLayer> zoneLayers;
Rect dirtyPixels;
int startX;
int startY;
int endX;
int endY;
// For each Zone check if it has dirty pixels
for (int z = 0; z < mZones.Count; ++z)
{
// If there is a intersection with Dirty Rect
dirtyPixels = RectUtility.PixelIntersection(mDirtyPixels, mZones[z].Area);
if (dirtyPixels.width > 0 && dirtyPixels.height > 0)
{
// Flatten only layers that belong to this zone in dirty rect
zoneLayers = mZones[z].ZoneLayers;
if (zoneLayers.Count > 0)
{
startX = (int)dirtyPixels.x + offset;
startY = (int)dirtyPixels.y;
endX = (int)dirtyPixels.x + (int)dirtyPixels.width;
endY = (int)dirtyPixels.y + (int)dirtyPixels.height;
// For each Dirty Pixel
for (int x = startX; x < endX; x += interval)
{
for (int y = startY; y < endY; ++y)
{
// If the Dirty mask is set to true
mResultTexture.SetPixel(x, y, HColor.ToUnityColor(FlattenPixel(x, y, zoneLayers.Count, zoneLayers)));
}
}
}
}
}
}
/* Filter a pixel based on some parameters and return a color value */
public override HColor FilterPixel(HColor source)
{
HSVA pixel = HueSaturationValue.ColorToHSV(source);
/* Set the source pixel Hue */
pixel.h = mHSVA.h;
/*
* Assume the source pixel has saturation 1 and subtract inverse of saturation from it
* This subtractive process will not saturate white pixels like highlites
*/
pixel.s = Mathf.Clamp01(pixel.s - (1 - mHSVA.s));
/*
* Use the value as an exponent to darken pixels
* This method does not darken white pixels ( to maintain highlights )
*/
pixel.v = Mathf.Clamp01(Mathf.Pow(pixel.v, 1 + (1 - (mHSVA.v)) * 2.5f));
/* Apply alpha as a multiplier */
pixel.a *= mHSVA.a;
return(HueSaturationValue.HSVToHColor(pixel));
}
/*
* Constructor
*/
public SolidColorPixelSource(int width, int height, Color color)
: base(width, height)
{
mColor = new HColor(color);
mIsWhite = (color == Color.white);
}
public static HColor Multiply(HColor c1, HColor c2)
{
return(new HColor((byte)((c1.r * c2.r) / 255), (byte)((c1.g * c2.g) / 255), (byte)((c1.b * c2.b) / 255), (byte)((c1.a * c2.a) / 255)));
}
public static HSVA ColorToHSV(HColor source)
{
return(ColorToHSV((float)source.r / 255, (float)source.g / 255, (float)source.b / 255, (float)source.a / 255));
}
public static bool IsWhite(HColor c)
{
return(c.r == 255 && c.g == 255 && c.b == 255);
}
public static Color ToUnityColor(HColor c)
{
return(new Color(c.r / 255f, c.g / 255f, c.b / 255f, c.a / 255f));
}
public override bool IsPixelWhite(int x, int y)
{
return(HColor.IsWhite(this[x, y]));
}
public static HColor Add(HColor c1, HColor c2)
{
return(new HColor(c1.r + c2.g, c1.b + c2.g, c1.b + c2.b, c1.a + c2.a));
}
/*
* Filter a pixel based on some parameters and return a color value
* This base class doesn't modify the pixel source
*/
public override HColor FilterPixel(HColor source)
{
return(source);
}
/* Filter a pixel based on some parameters and return a color value */
public override HColor FilterPixel(HColor source)
{
float alpha = Mathf.Floor(((source.a * mColor.a) / 65025f) * 255);
return(new HColor(mColor.r, mColor.g, mColor.b, (byte)alpha));
}
public SolidColorFilter()
: base()
{
mColor = new HColor(1f, 1f, 1f, 1f);
}
/* * Filter a pixel based on some parameters and return a color value * This base class doesn't modify the pixel source */ public abstract HColor FilterPixel(HColor source);
