diff options
Diffstat (limited to 'awt/org/apache/harmony/awt/gl/render/JavaBlitter.java')
| -rw-r--r-- | awt/org/apache/harmony/awt/gl/render/JavaBlitter.java | 611 |
1 files changed, 0 insertions, 611 deletions
diff --git a/awt/org/apache/harmony/awt/gl/render/JavaBlitter.java b/awt/org/apache/harmony/awt/gl/render/JavaBlitter.java deleted file mode 100644 index 67e0a59..0000000 --- a/awt/org/apache/harmony/awt/gl/render/JavaBlitter.java +++ /dev/null @@ -1,611 +0,0 @@ -/* - * Licensed to the Apache Software Foundation (ASF) under one or more - * contributor license agreements. See the NOTICE file distributed with - * this work for additional information regarding copyright ownership. - * The ASF licenses this file to You 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. - */ -/** - * @author Igor V. Stolyarov - * @version $Revision$ - * Created on 18.11.2005 - * - */ -package org.apache.harmony.awt.gl.render; - -import java.awt.AlphaComposite; -import java.awt.Color; -import java.awt.Composite; -import java.awt.CompositeContext; -import java.awt.Rectangle; -import java.awt.geom.AffineTransform; -import java.awt.geom.NoninvertibleTransformException; -import java.awt.geom.Rectangle2D; -import java.awt.image.ColorModel; -import java.awt.image.Raster; -import java.awt.image.WritableRaster; - -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.internal.nls.Messages; - -/** - * Java implenetation of the Blitter interface. Using when we can't - * draw images natively. - */ -public class JavaBlitter implements Blitter { - - /** - * 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; - - final static JavaBlitter inst = new JavaBlitter(); - - public static JavaBlitter getInstance(){ - return inst; - } - - 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: - blit(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 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); - } - } - } - - 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, dstPixel; - int srcConstAllpha = (int)(alpha * 255 + 0.5f); - int srcRGB, dstRGB = 0; - - if(bgcolor != null){ - dstRGB = bgcolor.getRGB(); - } - - for(int sy = srcY, dy = dstY, srcYMax = srcY + height; sy < srcYMax; sy++, dy++){ - for(int sx = srcX, dx = dstX, srcXMax = srcX + width; sx < srcXMax; sx++, dx++){ - srcPixel = srcRast.getDataElements(sx, sy, null); - srcRGB = srcCM.getRGB(srcPixel); - if(bgcolor == null){ - dstPixel = dstRast.getDataElements(dx, dy, null); - dstRGB = dstCM.getRGB(dstPixel); - } - - dstRGB = compose(srcRGB, srcCM.isAlphaPremultiplied(), - dstRGB, dstCM.hasAlpha(), dstCM.isAlphaPremultiplied(), - rule, srcConstAllpha); - - dstPixel = dstCM.getDataElements(dstRGB, null); - dstRast.setDataElements(dx,dy,dstPixel); - } - } - } - - void xorCompose(int srcX, int srcY, ColorModel srcCM, Raster srcRast, - int dstX, int dstY, ColorModel dstCM, WritableRaster dstRast, - int width, int height, Color xorcolor){ - - Object srcPixel, dstPixel; - int xorRGB = xorcolor.getRGB(); - int srcRGB, dstRGB; - - for(int sy = srcY, dy = dstY, srcYMax = srcY + height; sy < srcYMax; sy++, dy++){ - for(int sx = srcX, dx = dstX, srcXMax = srcX + width; sx < srcXMax; sx++, dx++){ - srcPixel = srcRast.getDataElements(sx, sy, null); - dstPixel = dstRast.getDataElements(dx, dy, null); - - srcRGB = srcCM.getRGB(srcPixel); - dstRGB = dstCM.getRGB(dstPixel); - dstRGB = srcRGB ^ xorRGB ^ dstRGB; - - dstRGB = 0xff000000 | dstRGB; - dstPixel = dstCM.getDataElements(dstRGB, dstPixel); - dstRast.setDataElements(dx,dy,dstPixel); - - } - } - - } - - 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) { - - Rectangle srcBounds = new Rectangle(width, height); - Rectangle dstBlitBounds = new Rectangle(dstX, dstY, srcR.getWidth(), srcR.getHeight()); - - Rectangle transSrcBounds = getBounds2D(at, srcBounds).getBounds(); - Rectangle transDstBlitBounds = getBounds2D(at, dstBlitBounds).getBounds(); - - int translateX = transDstBlitBounds.x - transSrcBounds.x; - int translateY = transDstBlitBounds.y - transSrcBounds.y; - - AffineTransform inv = null; - try { - inv = at.createInverse(); - } catch (NoninvertibleTransformException e) { - return; - } - - double[] m = new double[6]; - inv.getMatrix(m); - - int clipRects[]; - if(clip != null) { - clipRects = clip.rect; - } else { - clipRects = new int[]{5, 0, 0, dstR.getWidth(), dstR.getHeight()}; - } - - int compType = 0; - int srcConstAlpha = 0; - int rule = 0; - int bgRGB = bgcolor == null ? 0 : bgcolor.getRGB(); - int srcRGB = 0, dstRGB = 0; - Object srcVal = null, dstVal = null; - if(comp instanceof AlphaComposite){ - compType = AlphaCompositeMode; - AlphaComposite ac = (AlphaComposite) comp; - rule = ac.getRule(); - srcConstAlpha = (int)(ac.getAlpha() * 255 + 0.5f); - }else if(comp instanceof XORComposite){ - compType = XORMode; - XORComposite xor = (XORComposite) comp; - bgRGB = xor.getXORColor().getRGB(); - } - - for(int i = 1; i < clipRects[0]; i += 4){ - Rectangle dstBounds = new Rectangle(clipRects[i], clipRects[i + 1], 0, 0); - dstBounds.add(clipRects[i + 2] + 1, clipRects[i + 1]); - dstBounds.add(clipRects[i + 2] + 1, clipRects[i + 3] + 1); - dstBounds.add(clipRects[i], clipRects[i + 3] + 1); - - Rectangle bounds = dstBounds.intersection(transDstBlitBounds); - - int minSrcX = srcBounds.x; - int minSrcY = srcBounds.y; - int maxSrcX = minSrcX + srcBounds.width; - int maxSrcY = minSrcY + srcBounds.height; - - int minX = bounds.x; - int minY = bounds.y; - int maxX = minX + bounds.width; - int maxY = minY + bounds.height; - - int hx = (int)((m[0] * 256) + 0.5); - int hy = (int)((m[1] * 256) + 0.5); - int vx = (int)((m[2] * 256) + 0.5); - int vy = (int)((m[3] * 256) + 0.5); - int sx = (int)((m[4] + m[0] * (bounds.x - translateX) + m[2] * (bounds.y - translateY)) * 256 + 0.5); - int sy = (int)((m[5] + m[1] * (bounds.x - translateX) + m[3] * (bounds.y - translateY)) * 256 + 0.5); - - vx -= hx * bounds.width; - vy -= hy * bounds.width; - - for(int y = minY; y < maxY; y++) { - for(int x = minX; x < maxX; x++) { - int px = sx >> 8; - int py = sy >> 8; - if (px >= minSrcX && py >= minSrcY && px < maxSrcX && py < maxSrcY) { - switch(compType){ - case AlphaCompositeMode: - srcVal = srcR.getDataElements(px , py , null); - srcRGB = srcCM.getRGB(srcVal); - if(bgcolor != null){ - dstRGB = bgRGB; - }else{ - dstVal = dstR.getDataElements(x, y, null); - dstRGB = dstCM.getRGB(dstVal); - } - dstRGB = compose(srcRGB, srcCM.isAlphaPremultiplied(), - dstRGB, dstCM.hasAlpha(), dstCM.isAlphaPremultiplied(), - rule, srcConstAlpha); - dstVal = dstCM.getDataElements(dstRGB, null); - dstR.setDataElements(x, y, dstVal); - break; - - case XORMode: - srcVal = srcR.getDataElements(px , py , null); - srcRGB = srcCM.getRGB(srcVal); - dstVal = dstR.getDataElements(x, y, null); - dstRGB = dstCM.getRGB(dstVal); - dstRGB = srcRGB ^ bgRGB; - - dstRGB = 0xff000000 | dstRGB; - dstVal = dstCM.getDataElements(dstRGB, null); - dstR.setDataElements(x, y, dstVal); - break; - - default: - // awt.37=Unknown composite type {0} - throw new IllegalArgumentException(Messages.getString("awt.37", //$NON-NLS-1$ - comp.getClass())); - } - } - sx += hx; - sy += hy; - } - sx += vx; - sy += vy; - } - } - - } - - 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; - - } - -} |