/*
* Copyright (c) 2009-2012 jMonkeyEngine
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* * Redistributions in binary form must reproduce the above copyright
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package com.jme3.scene.plugins.blender.textures.blending;
import com.jme3.math.FastMath;
import com.jme3.scene.plugins.blender.BlenderContext;
import com.jme3.scene.plugins.blender.textures.TexturePixel;
import com.jme3.scene.plugins.blender.textures.io.PixelIOFactory;
import com.jme3.scene.plugins.blender.textures.io.PixelInputOutput;
import com.jme3.texture.Image;
import com.jme3.texture.Image.Format;
import com.jme3.util.BufferUtils;
import java.nio.ByteBuffer;
import java.util.ArrayList;
/**
* The class that is responsible for blending the following texture types: <li>RGBA8 <li>ABGR8 <li>BGR8 <li>RGB8 Not yet supported (but will be): <li>ARGB4444: <li>RGB10: <li>RGB111110F: <li>RGB16: <li>RGB16F: <li>RGB16F_to_RGB111110F: <li>RGB16F_to_RGB9E5: <li>RGB32F: <li>RGB565: <li>RGB5A1: <li>RGB9E5: <li>RGBA16: <li>RGBA16F
* @author Marcin Roguski (Kaelthas)
*/
public class TextureBlenderAWT extends AbstractTextureBlender {
public TextureBlenderAWT(int flag, boolean negateTexture, int blendType, float[] materialColor, float[] color, float blendFactor) {
super(flag, negateTexture, blendType, materialColor, color, blendFactor);
}
@Override
public Image blend(Image image, Image baseImage, BlenderContext blenderContext) {
this.prepareImagesForBlending(image, baseImage);
float[] pixelColor = new float[] { color[0], color[1], color[2], 1.0f };
Format format = image.getFormat();
PixelInputOutput basePixelIO = null, pixelReader = PixelIOFactory.getPixelIO(format);
TexturePixel basePixel = null, pixel = new TexturePixel();
float[] materialColor = this.materialColor;
if (baseImage != null) {
basePixelIO = PixelIOFactory.getPixelIO(baseImage.getFormat());
materialColor = new float[this.materialColor.length];
basePixel = new TexturePixel();
}
int width = image.getWidth();
int height = image.getHeight();
int depth = image.getDepth();
if (depth == 0) {
depth = 1;
}
int bytesPerPixel = image.getFormat().getBitsPerPixel() >> 3;
ArrayList<ByteBuffer> dataArray = new ArrayList<ByteBuffer>(depth);
float[] resultPixel = new float[4];
for (int dataLayerIndex = 0; dataLayerIndex < depth; ++dataLayerIndex) {
ByteBuffer data = image.getData(dataLayerIndex);
data.rewind();
int imagePixelCount = data.limit() / bytesPerPixel;
ByteBuffer newData = BufferUtils.createByteBuffer(imagePixelCount * 4);
int dataIndex = 0, x = 0, y = 0, index = 0;
while (index < data.limit()) {
// getting the proper material color if the base texture is applied
if (basePixelIO != null) {
basePixelIO.read(baseImage, dataLayerIndex, basePixel, x, y);
basePixel.toRGBA(materialColor);
++x;
if (x >= width) {
x = 0;
++y;
}
}
// reading the current texture's pixel
pixelReader.read(image, dataLayerIndex, pixel, index);
index += bytesPerPixel;
pixel.toRGBA(pixelColor);
if (negateTexture) {
pixel.negate();
}
this.blendPixel(resultPixel, materialColor, pixelColor, blenderContext);
newData.put(dataIndex++, (byte) (resultPixel[0] * 255.0f));
newData.put(dataIndex++, (byte) (resultPixel[1] * 255.0f));
newData.put(dataIndex++, (byte) (resultPixel[2] * 255.0f));
newData.put(dataIndex++, (byte) (pixelColor[3] * 255.0f));
}
dataArray.add(newData);
}
Image result = depth > 1 ? new Image(Format.RGBA8, width, height, depth, dataArray) : new Image(Format.RGBA8, width, height, dataArray.get(0));
if (image.getMipMapSizes() != null) {
result.setMipMapSizes(image.getMipMapSizes().clone());
}
return result;
}
/**
* This method blends the single pixel depending on the blending type.
*
* @param result
* the result pixel
* @param materialColor
* the material color
* @param pixelColor
* the pixel color
* @param blenderContext
* the blender context
*/
protected void blendPixel(float[] result, float[] materialColor, float[] pixelColor, BlenderContext blenderContext) {
float blendFactor = this.blendFactor * pixelColor[3];
float oneMinusFactor = 1.0f - blendFactor, col;
switch (blendType) {
case MTEX_BLEND:
result[0] = blendFactor * pixelColor[0] + oneMinusFactor * materialColor[0];
result[1] = blendFactor * pixelColor[1] + oneMinusFactor * materialColor[1];
result[2] = blendFactor * pixelColor[2] + oneMinusFactor * materialColor[2];
break;
case MTEX_MUL:
result[0] = (oneMinusFactor + blendFactor * materialColor[0]) * pixelColor[0];
result[1] = (oneMinusFactor + blendFactor * materialColor[1]) * pixelColor[1];
result[2] = (oneMinusFactor + blendFactor * materialColor[2]) * pixelColor[2];
break;
case MTEX_DIV:
if (pixelColor[0] != 0.0) {
result[0] = (oneMinusFactor * materialColor[0] + blendFactor * materialColor[0] / pixelColor[0]) * 0.5f;
}
if (pixelColor[1] != 0.0) {
result[1] = (oneMinusFactor * materialColor[1] + blendFactor * materialColor[1] / pixelColor[1]) * 0.5f;
}
if (pixelColor[2] != 0.0) {
result[2] = (oneMinusFactor * materialColor[2] + blendFactor * materialColor[2] / pixelColor[2]) * 0.5f;
}
break;
case MTEX_SCREEN:
result[0] = 1.0f - (oneMinusFactor + blendFactor * (1.0f - materialColor[0])) * (1.0f - pixelColor[0]);
result[1] = 1.0f - (oneMinusFactor + blendFactor * (1.0f - materialColor[1])) * (1.0f - pixelColor[1]);
result[2] = 1.0f - (oneMinusFactor + blendFactor * (1.0f - materialColor[2])) * (1.0f - pixelColor[2]);
break;
case MTEX_OVERLAY:
if (materialColor[0] < 0.5f) {
result[0] = pixelColor[0] * (oneMinusFactor + 2.0f * blendFactor * materialColor[0]);
} else {
result[0] = 1.0f - (oneMinusFactor + 2.0f * blendFactor * (1.0f - materialColor[0])) * (1.0f - pixelColor[0]);
}
if (materialColor[1] < 0.5f) {
result[1] = pixelColor[1] * (oneMinusFactor + 2.0f * blendFactor * materialColor[1]);
} else {
result[1] = 1.0f - (oneMinusFactor + 2.0f * blendFactor * (1.0f - materialColor[1])) * (1.0f - pixelColor[1]);
}
if (materialColor[2] < 0.5f) {
result[2] = pixelColor[2] * (oneMinusFactor + 2.0f * blendFactor * materialColor[2]);
} else {
result[2] = 1.0f - (oneMinusFactor + 2.0f * blendFactor * (1.0f - materialColor[2])) * (1.0f - pixelColor[2]);
}
break;
case MTEX_SUB:
result[0] = materialColor[0] - blendFactor * pixelColor[0];
result[1] = materialColor[1] - blendFactor * pixelColor[1];
result[2] = materialColor[2] - blendFactor * pixelColor[2];
result[0] = FastMath.clamp(result[0], 0.0f, 1.0f);
result[1] = FastMath.clamp(result[1], 0.0f, 1.0f);
result[2] = FastMath.clamp(result[2], 0.0f, 1.0f);
break;
case MTEX_ADD:
result[0] = (blendFactor * pixelColor[0] + materialColor[0]) * 0.5f;
result[1] = (blendFactor * pixelColor[1] + materialColor[1]) * 0.5f;
result[2] = (blendFactor * pixelColor[2] + materialColor[2]) * 0.5f;
break;
case MTEX_DIFF:
result[0] = oneMinusFactor * materialColor[0] + blendFactor * Math.abs(materialColor[0] - pixelColor[0]);
result[1] = oneMinusFactor * materialColor[1] + blendFactor * Math.abs(materialColor[1] - pixelColor[1]);
result[2] = oneMinusFactor * materialColor[2] + blendFactor * Math.abs(materialColor[2] - pixelColor[2]);
break;
case MTEX_DARK:
col = blendFactor * pixelColor[0];
result[0] = col < materialColor[0] ? col : materialColor[0];
col = blendFactor * pixelColor[1];
result[1] = col < materialColor[1] ? col : materialColor[1];
col = blendFactor * pixelColor[2];
result[2] = col < materialColor[2] ? col : materialColor[2];
break;
case MTEX_LIGHT:
col = blendFactor * pixelColor[0];
result[0] = col > materialColor[0] ? col : materialColor[0];
col = blendFactor * pixelColor[1];
result[1] = col > materialColor[1] ? col : materialColor[1];
col = blendFactor * pixelColor[2];
result[2] = col > materialColor[2] ? col : materialColor[2];
break;
case MTEX_BLEND_HUE:
case MTEX_BLEND_SAT:
case MTEX_BLEND_VAL:
case MTEX_BLEND_COLOR:
System.arraycopy(materialColor, 0, result, 0, 3);
this.blendHSV(blendType, result, blendFactor, pixelColor, blenderContext);
break;
default:
throw new IllegalStateException("Unknown blend type: " + blendType);
}
}
}