diff options
Diffstat (limited to 'awt/com/android/internal/awt/AndroidJavaBlitter.java')
| -rw-r--r-- | awt/com/android/internal/awt/AndroidJavaBlitter.java | 536 |
1 files changed, 0 insertions, 536 deletions
diff --git a/awt/com/android/internal/awt/AndroidJavaBlitter.java b/awt/com/android/internal/awt/AndroidJavaBlitter.java deleted file mode 100644 index 423b534..0000000 --- a/awt/com/android/internal/awt/AndroidJavaBlitter.java +++ /dev/null @@ -1,536 +0,0 @@ -/* - * Copyright 2007, The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -package com.android.internal.awt; - -import android.graphics.Bitmap; -import android.graphics.Canvas; -import android.graphics.Matrix; -import android.graphics.Paint; -import org.apache.harmony.awt.gl.MultiRectArea; -import org.apache.harmony.awt.gl.Surface; -import org.apache.harmony.awt.gl.XORComposite; -import org.apache.harmony.awt.gl.render.Blitter; - -import java.awt.*; -import java.awt.geom.AffineTransform; -import java.awt.geom.Rectangle2D; -import java.awt.image.ColorModel; -import java.awt.image.DataBuffer; -import java.awt.image.DataBufferInt; -import java.awt.image.Raster; -import java.awt.image.WritableRaster; - -public class AndroidJavaBlitter implements Blitter { - - private Canvas canvas; - private Paint paint; - private int colorCache; - - public AndroidJavaBlitter(Canvas c) { - this.canvas = c; - this.paint = new Paint(); - this.paint.setStrokeWidth(1); - } - - /** - * Instead of multiplication and division we are using values from - * Lookup tables. - */ - static byte mulLUT[][]; // Lookup table for multiplication - static byte divLUT[][]; // Lookup table for division - - static{ - mulLUT = new byte[256][256]; - for(int i = 0; i < 256; i++){ - for(int j = 0; j < 256; j++){ - mulLUT[i][j] = (byte)((float)(i * j)/255 + 0.5f); - } - } - divLUT = new byte[256][256]; - for(int i = 1; i < 256; i++){ - for(int j = 0; j < i; j++){ - divLUT[i][j] = (byte)(((float)j / 255) / ((float)i/ 255) * 255 + 0.5f); - } - for(int j = i; j < 256; j++){ - divLUT[i][j] = (byte)255; - } - } - } - - final static int AlphaCompositeMode = 1; - final static int XORMode = 2; - - public void blit(int srcX, int srcY, Surface srcSurf, int dstX, int dstY, - Surface dstSurf, int width, int height, AffineTransform sysxform, - AffineTransform xform, Composite comp, Color bgcolor, - MultiRectArea clip) { - - if(xform == null){ - blit(srcX, srcY, srcSurf, dstX, dstY, dstSurf, width, height, - sysxform, comp, bgcolor, clip); - }else{ - double scaleX = xform.getScaleX(); - double scaleY = xform.getScaleY(); - double scaledX = dstX / scaleX; - double scaledY = dstY / scaleY; - AffineTransform at = new AffineTransform(); - at.setToTranslation(scaledX, scaledY); - xform.concatenate(at); - sysxform.concatenate(xform); - blit(srcX, srcY, srcSurf, 0, 0, dstSurf, width, height, - sysxform, comp, bgcolor, clip); - } - - } - - public void blit(int srcX, int srcY, Surface srcSurf, int dstX, int dstY, - Surface dstSurf, int width, int height, AffineTransform sysxform, - Composite comp, Color bgcolor, MultiRectArea clip) { - - if(sysxform == null) { - sysxform = new AffineTransform(); - } - int type = sysxform.getType(); - switch(type){ - case AffineTransform.TYPE_TRANSLATION: - dstX += sysxform.getTranslateX(); - dstY += sysxform.getTranslateY(); - case AffineTransform.TYPE_IDENTITY: - simpleBlit(srcX, srcY, srcSurf, dstX, dstY, dstSurf, - width, height, comp, bgcolor, clip); - break; - default: - int srcW = srcSurf.getWidth(); - int srcH = srcSurf.getHeight(); - - int w = srcX + width < srcW ? width : srcW - srcX; - int h = srcY + height < srcH ? height : srcH - srcY; - - ColorModel srcCM = srcSurf.getColorModel(); - Raster srcR = srcSurf.getRaster().createChild(srcX, srcY, - w, h, 0, 0, null); - - ColorModel dstCM = dstSurf.getColorModel(); - WritableRaster dstR = dstSurf.getRaster(); - - transformedBlit(srcCM, srcR, 0, 0, dstCM, dstR, dstX, dstY, w, h, - sysxform, comp, bgcolor, clip); - - } - } - - public void simpleBlit(int srcX, int srcY, Surface srcSurf, int dstX, int dstY, - Surface dstSurf, int width, int height, Composite comp, - Color bgcolor, MultiRectArea clip) { - - // TODO It's possible, though unlikely that we might encounter non-int[] - // data buffers. In this case the following code needs to have several - // branches that take this into account. - data = (DataBufferInt)srcSurf.getRaster().getDataBuffer(); - int[] pixels = data.getData(); - if (!srcSurf.getColorModel().hasAlpha()) { - // This wouldn't be necessary if Android supported RGB_888. - for (int i = 0; i < pixels.length; i++) { - pixels[i] = pixels[i] | 0xff000000; - } - } - bmap = Bitmap.createBitmap(pixels, width, height, Bitmap.Config.ARGB_8888); - canvas.drawBitmap(bmap, dstX, dstY, paint); - } - - public void blit(int srcX, int srcY, Surface srcSurf, int dstX, int dstY, - Surface dstSurf, int width, int height, Composite comp, - Color bgcolor, MultiRectArea clip) { - - javaBlt(srcX, srcY, srcSurf.getWidth(), srcSurf.getHeight(), - srcSurf.getColorModel(), srcSurf.getRaster(), dstX, dstY, - dstSurf.getWidth(), dstSurf.getHeight(), - dstSurf.getColorModel(), dstSurf.getRaster(), - width, height, comp, bgcolor, clip); - - } - - public void javaBlt(int srcX, int srcY, int srcW, int srcH, - ColorModel srcCM, Raster srcRast, int dstX, int dstY, - int dstW, int dstH, ColorModel dstCM, WritableRaster dstRast, - int width, int height, Composite comp, Color bgcolor, - MultiRectArea clip){ - - int srcX2 = srcW - 1; - int srcY2 = srcH - 1; - int dstX2 = dstW - 1; - int dstY2 = dstH - 1; - - if(srcX < 0){ - width += srcX; - srcX = 0; - } - if(srcY < 0){ - height += srcY; - srcY = 0; - } - - if(dstX < 0){ - width += dstX; - srcX -= dstX; - dstX = 0; - } - if(dstY < 0){ - height += dstY; - srcY -= dstY; - dstY = 0; - } - - if(srcX > srcX2 || srcY > srcY2) { - return; - } - if(dstX > dstX2 || dstY > dstY2) { - return; - } - - if(srcX + width > srcX2) { - width = srcX2 - srcX + 1; - } - if(srcY + height > srcY2) { - height = srcY2 - srcY + 1; - } - if(dstX + width > dstX2) { - width = dstX2 - dstX + 1; - } - if(dstY + height > dstY2) { - height = dstY2 - dstY + 1; - } - - if(width <= 0 || height <= 0) { - return; - } - - int clipRects[]; - if(clip != null) { - clipRects = clip.rect; - } else { - clipRects = new int[]{5, 0, 0, dstW - 1, dstH - 1}; - } - - boolean isAlphaComp = false; - int rule = 0; - float alpha = 0; - boolean isXORComp = false; - Color xorcolor = null; - CompositeContext cont = null; - - if(comp instanceof AlphaComposite){ - isAlphaComp = true; - AlphaComposite ac = (AlphaComposite) comp; - rule = ac.getRule(); - alpha = ac.getAlpha(); - }else if(comp instanceof XORComposite){ - isXORComp = true; - XORComposite xcomp = (XORComposite) comp; - xorcolor = xcomp.getXORColor(); - }else{ - cont = comp.createContext(srcCM, dstCM, null); - } - - for(int i = 1; i < clipRects[0]; i += 4){ - int _sx = srcX; - int _sy = srcY; - - int _dx = dstX; - int _dy = dstY; - - int _w = width; - int _h = height; - - int cx = clipRects[i]; // Clipping left top X - int cy = clipRects[i + 1]; // Clipping left top Y - int cx2 = clipRects[i + 2]; // Clipping right bottom X - int cy2 = clipRects[i + 3]; // Clipping right bottom Y - - if(_dx > cx2 || _dy > cy2 || dstX2 < cx || dstY2 < cy) { - continue; - } - - if(cx > _dx){ - int shx = cx - _dx; - _w -= shx; - _dx = cx; - _sx += shx; - } - - if(cy > _dy){ - int shy = cy - _dy; - _h -= shy; - _dy = cy; - _sy += shy; - } - - if(_dx + _w > cx2 + 1){ - _w = cx2 - _dx + 1; - } - - if(_dy + _h > cy2 + 1){ - _h = cy2 - _dy + 1; - } - - if(_sx > srcX2 || _sy > srcY2) { - continue; - } - - if(isAlphaComp){ - alphaCompose(_sx, _sy, srcCM, srcRast, _dx, _dy, - dstCM, dstRast, _w, _h, rule, alpha, bgcolor); - }else if(isXORComp){ - xorCompose(_sx, _sy, srcCM, srcRast, _dx, _dy, - dstCM, dstRast, _w, _h, xorcolor); - }else{ - Raster sr = srcRast.createChild(_sx, _sy, _w, _h, 0, 0, null); - WritableRaster dr = dstRast.createWritableChild(_dx, _dy, - _w, _h, 0, 0, null); - cont.compose(sr, dr, dr); - } - } - - } - - DataBufferInt data; - Bitmap bmap, bmp; - - void alphaCompose(int srcX, int srcY, ColorModel srcCM, Raster srcRast, - int dstX, int dstY, ColorModel dstCM, WritableRaster dstRast, - int width, int height, int rule, float alpha, Color bgcolor){ - - Object srcPixel = getTransferArray(srcRast, 1); - data = (DataBufferInt)srcRast.getDataBuffer(); - int pix[] = data.getData(); - bmap = Bitmap.createBitmap(pix, width, height, Bitmap.Config.RGB_565); - canvas.drawBitmap(bmap, dstX, dstY, paint); - } - - void render(int[] img, int x, int y, int width, int height) { - canvas.drawBitmap(Bitmap.createBitmap(img, width, height, Bitmap.Config.ARGB_8888), x, y, paint); - } - - void xorCompose(int srcX, int srcY, ColorModel srcCM, Raster srcRast, - int dstX, int dstY, ColorModel dstCM, WritableRaster dstRast, - int width, int height, Color xorcolor){ - - data = (DataBufferInt)srcRast.getDataBuffer(); - int pix[] = data.getData(); - bmap = Bitmap.createBitmap(pix, width, height, Bitmap.Config.RGB_565); - canvas.drawBitmap(bmap, dstX, dstY, paint); - } - - private void transformedBlit(ColorModel srcCM, Raster srcR, int srcX, int srcY, - ColorModel dstCM, WritableRaster dstR, int dstX, int dstY, - int width, int height, AffineTransform at, Composite comp, - Color bgcolor, MultiRectArea clip) { - - data = (DataBufferInt)srcR.getDataBuffer(); - int[] pixels = data.getData(); - if (!srcCM.hasAlpha()) { - // This wouldn't be necessary if Android supported RGB_888. - for (int i = 0; i < pixels.length; i++) { - pixels[i] = pixels[i] | 0xff000000; - } - } - bmap = Bitmap.createBitmap(pixels, width, height, Bitmap.Config.ARGB_8888); - - Matrix tm = new Matrix(); - tm.setConcat(canvas.getMatrix(), AndroidGraphics2D.createMatrixObj(at)); - if(at.getType() > 1) { - bmp = Bitmap.createBitmap(bmap, 0, 0, width, height, tm, true); - } else { - bmp = Bitmap.createBitmap(bmap, 0, 0, width, height, tm, false); - } - canvas.drawBitmap(bmp, dstX + (float)at.getTranslateX(), dstY + (float)at.getTranslateY(), paint); - } - - private Rectangle2D getBounds2D(AffineTransform at, Rectangle r) { - int x = r.x; - int y = r.y; - int width = r.width; - int height = r.height; - - float[] corners = { - x, y, - x + width, y, - x + width, y + height, - x, y + height - }; - - at.transform(corners, 0, corners, 0, 4); - - Rectangle2D.Float bounds = new Rectangle2D.Float(corners[0], corners[1], 0 , 0); - bounds.add(corners[2], corners[3]); - bounds.add(corners[4], corners[5]); - bounds.add(corners[6], corners[7]); - - return bounds; - } - - private int compose(int srcRGB, boolean isSrcAlphaPre, - int dstRGB, boolean dstHasAlpha, boolean isDstAlphaPre, - int rule, int srcConstAlpha){ - - int sa, sr, sg, sb, da, dr, dg, db; - - sa = (srcRGB >> 24) & 0xff; - sr = (srcRGB >> 16) & 0xff; - sg = (srcRGB >> 8) & 0xff; - sb = srcRGB & 0xff; - - if(isSrcAlphaPre){ - sa = mulLUT[srcConstAlpha][sa] & 0xff; - sr = mulLUT[srcConstAlpha][sr] & 0xff; - sg = mulLUT[srcConstAlpha][sg] & 0xff; - sb = mulLUT[srcConstAlpha][sb] & 0xff; - }else{ - sa = mulLUT[srcConstAlpha][sa] & 0xff; - sr = mulLUT[sa][sr] & 0xff; - sg = mulLUT[sa][sg] & 0xff; - sb = mulLUT[sa][sb] & 0xff; - } - - da = (dstRGB >> 24) & 0xff; - dr = (dstRGB >> 16) & 0xff; - dg = (dstRGB >> 8) & 0xff; - db = dstRGB & 0xff; - - if(!isDstAlphaPre){ - dr = mulLUT[da][dr] & 0xff; - dg = mulLUT[da][dg] & 0xff; - db = mulLUT[da][db] & 0xff; - } - - int Fs = 0; - int Fd = 0; - switch(rule){ - case AlphaComposite.CLEAR: - break; - - case AlphaComposite.DST: - Fd = 255; - break; - - case AlphaComposite.DST_ATOP: - Fs = 255 - da; - Fd = sa; - break; - - case AlphaComposite.DST_IN: - Fd = sa; - break; - - case AlphaComposite.DST_OUT: - Fd = 255 - sa; - break; - - case AlphaComposite.DST_OVER: - Fs = 255 - da; - Fd = 255; - break; - - case AlphaComposite.SRC: - Fs = 255; - break; - - case AlphaComposite.SRC_ATOP: - Fs = da; - Fd = 255 - sa; - break; - - case AlphaComposite.SRC_IN: - Fs = da; - break; - - case AlphaComposite.SRC_OUT: - Fs = 255 - da; - break; - - case AlphaComposite.SRC_OVER: - Fs = 255; - Fd = 255 - sa; - break; - - case AlphaComposite.XOR: - Fs = 255 - da; - Fd = 255 - sa; - break; - } - dr = (mulLUT[sr][Fs] & 0xff) + (mulLUT[dr][Fd] & 0xff); - dg = (mulLUT[sg][Fs] & 0xff) + (mulLUT[dg][Fd] & 0xff); - db = (mulLUT[sb][Fs] & 0xff) + (mulLUT[db][Fd] & 0xff); - - da = (mulLUT[sa][Fs] & 0xff) + (mulLUT[da][Fd] & 0xff); - - if(!isDstAlphaPre){ - if(da != 255){ - dr = divLUT[da][dr] & 0xff; - dg = divLUT[da][dg] & 0xff; - db = divLUT[da][db] & 0xff; - } - } - if(!dstHasAlpha) { - da = 0xff; - } - dstRGB = (da << 24) | (dr << 16) | (dg << 8) | db; - - return dstRGB; - - } - - /** - * Allocate an array that can be use to store the result for a - * Raster.getDataElements call. - * @param raster Raster (type) where the getDataElements call will be made. - * @param nbPixels How many pixels to store in the array at most - * @return the result array or null - */ - private Object getTransferArray(Raster raster, int nbPixels) { - int transferType = raster.getTransferType(); - int nbDataElements = raster.getSampleModel().getNumDataElements(); - int n = nbDataElements * nbPixels; - switch (transferType) { - case DataBuffer.TYPE_BYTE: - return new byte[n]; - case DataBuffer.TYPE_SHORT: - case DataBuffer.TYPE_USHORT: - return new short[n]; - case DataBuffer.TYPE_INT: - return new int[n]; - case DataBuffer.TYPE_FLOAT: - return new float[n]; - case DataBuffer.TYPE_DOUBLE: - return new double[n]; - case DataBuffer.TYPE_UNDEFINED: - default: - return null; - } - } - - /** - * Draw a pixel - */ - private void dot(int x, int y, int clr) { - if (colorCache != clr) { - paint.setColor(clr); - colorCache = clr; - } - canvas.drawLine(x, y, x + 1, y + 1, paint); - } -} |