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src/java.desktop/share/classes/sun/java2d/marlin/MarlinTileGenerator.java

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*** 1,7 **** /* ! * Copyright (c) 2007, 2017, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this --- 1,7 ---- /* ! * Copyright (c) 2007, 2018, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation. Oracle designates this
*** 29,38 **** --- 29,40 ---- import sun.java2d.pipe.AATileGenerator; import jdk.internal.misc.Unsafe; final class MarlinTileGenerator implements AATileGenerator, MarlinConst { + private static final boolean DISABLE_BLEND = false; + private static final int MAX_TILE_ALPHA_SUM = TILE_W * TILE_H * MAX_AA_ALPHA; private static final int TH_AA_ALPHA_FILL_EMPTY = ((MAX_AA_ALPHA + 1) / 3); // 33% private static final int TH_AA_ALPHA_FILL_FULL = ((MAX_AA_ALPHA + 1) * 2 / 3); // 66%
*** 41,54 **** static { if (MAX_TILE_ALPHA_SUM <= 0) { throw new IllegalStateException("Invalid MAX_TILE_ALPHA_SUM: " + MAX_TILE_ALPHA_SUM); } if (DO_TRACE) { ! System.out.println("MAX_AA_ALPHA : " + MAX_AA_ALPHA); ! System.out.println("TH_AA_ALPHA_FILL_EMPTY : " + TH_AA_ALPHA_FILL_EMPTY); ! System.out.println("TH_AA_ALPHA_FILL_FULL : " + TH_AA_ALPHA_FILL_FULL); ! System.out.println("FILL_TILE_W : " + FILL_TILE_W); } } private final Renderer rdrF; private final DRenderer rdrD; --- 43,56 ---- static { if (MAX_TILE_ALPHA_SUM <= 0) { throw new IllegalStateException("Invalid MAX_TILE_ALPHA_SUM: " + MAX_TILE_ALPHA_SUM); } if (DO_TRACE) { ! MarlinUtils.logInfo("MAX_AA_ALPHA : " + MAX_AA_ALPHA); ! MarlinUtils.logInfo("TH_AA_ALPHA_FILL_EMPTY : " + TH_AA_ALPHA_FILL_EMPTY); ! MarlinUtils.logInfo("TH_AA_ALPHA_FILL_FULL : " + TH_AA_ALPHA_FILL_FULL); ! MarlinUtils.logInfo("FILL_TILE_W : " + FILL_TILE_W); } } private final Renderer rdrF; private final DRenderer rdrD;
*** 139,148 **** --- 141,154 ---- * @return 0x00 for no coverage, 0xff for total coverage, or any other * value for partial coverage of the tile */ @Override public int getTypicalAlpha() { + if (DISABLE_BLEND) { + // always return empty tiles to disable blending operations + return 0x00; + } int al = cache.alphaSumInTile(x); // Note: if we have a filled rectangle that doesn't end on a tile // border, we could still return 0xff, even though al!=maxTileAlphaSum // This is because if we return 0xff, our users will fill a rectangle // starting at x,y that has width = Math.min(TILE_SIZE, bboxX1-x),
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