1 /* 2 * Copyright (c) 2000, 2008, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 #ifndef ByteGray_h_Included 27 #define ByteGray_h_Included 28 29 #include "IntDcm.h" 30 31 /* 32 * This file contains macro and type definitions used by the macros in 33 * LoopMacros.h to manipulate a surface of type "ByteGray". 34 */ 35 36 typedef jubyte ByteGrayPixelType; 37 typedef jubyte ByteGrayDataType; 38 39 #define ByteGrayIsOpaque 1 40 41 #define ByteGrayPixelStride 1 42 #define ByteGrayBitsPerPixel 8 43 44 #define DeclareByteGrayLoadVars(PREFIX) 45 #define DeclareByteGrayStoreVars(PREFIX) 46 #define SetByteGrayStoreVarsYPos(PREFIX, pRasInfo, y) 47 #define SetByteGrayStoreVarsXPos(PREFIX, pRasInfo, x) 48 #define InitByteGrayLoadVars(PREFIX, pRasInfo) 49 #define InitByteGrayStoreVarsY(PREFIX, pRasInfo) 50 #define InitByteGrayStoreVarsX(PREFIX, pRasInfo) 51 #define NextByteGrayStoreVarsX(PREFIX) 52 #define NextByteGrayStoreVarsY(PREFIX) 53 #define DeclareByteGrayPixelData(PREFIX) 54 #define ExtractByteGrayPixelData(PIXEL, PREFIX) 55 56 #define ByteGrayXparLutEntry -1 57 #define ByteGrayIsXparLutEntry(pix) (pix < 0) 58 #define StoreByteGrayNonXparFromArgb StoreByteGrayFrom1IntArgb 59 60 61 #define ComposeByteGrayFrom3ByteRgb(r, g, b) \ 62 (ByteGrayDataType)(((77*(r)) + (150*(g)) + (29*(b)) + 128) / 256) 63 64 65 #define StoreByteGrayPixel(pRas, x, pixel) \ 66 ((pRas)[x] = (jubyte) (pixel)) 67 68 #define StoreByteGrayPixelData(pPix, x, pixel, PREFIX) \ 69 StoreByteGrayPixel(pPix, x, pixel) 70 71 #define ByteGrayPixelFromArgb(pixel, rgb, pRasInfo) \ 72 do { \ 73 jint r, g, b; \ 74 ExtractIntDcmComponentsX123(rgb, r, g, b); \ 75 (pixel) = ComposeByteGrayFrom3ByteRgb(r, g, b); \ 76 } while (0) 77 78 79 #define LoadByteGrayTo1IntRgb(pRas, PREFIX, x, rgb) \ 80 do { \ 81 int gray = (pRas)[x]; \ 82 (rgb) = (((gray << 8) | gray) << 8) | gray; \ 83 } while (0) 84 85 #define LoadByteGrayTo1IntArgb(pRas, PREFIX, x, argb) \ 86 do { \ 87 int gray = (pRas)[x]; \ 88 (argb) = (((((0xff << 8) | gray) << 8) | gray) << 8) | gray; \ 89 } while (0) 90 91 #define LoadByteGrayTo3ByteRgb(pRas, PREFIX, x, r, g, b) \ 92 ((r) = (g) = (b) = (pRas)[x]) 93 94 #define LoadByteGrayTo4ByteArgb(pRas, PREFIX, x, a, r, g, b) \ 95 do { \ 96 LoadByteGrayTo3ByteRgb(pRas, PREFIX, x, r, g, b); \ 97 (a) = 0xff; \ 98 } while (0) 99 100 #define LoadByteGrayTo1ByteGray(pRas, PREFIX, x, gray) \ 101 (gray) = (pRas)[x] 102 103 #define StoreByteGrayFrom1IntRgb(pRas, PREFIX, x, rgb) \ 104 do { \ 105 int r, g, b; \ 106 ExtractIntDcmComponentsX123(rgb, r, g, b); \ 107 StoreByteGrayFrom3ByteRgb(pRas, PREFIX, x, r, g, b); \ 108 } while (0) 109 110 #define StoreByteGrayFrom1IntArgb(pRas, PREFIX, x, argb) \ 111 StoreByteGrayFrom1IntRgb(pRas, PREFIX, x, argb) 112 113 #define StoreByteGrayFrom3ByteRgb(pRas, PREFIX, x, r, g, b) \ 114 (pRas)[x] = ComposeByteGrayFrom3ByteRgb(r, g, b) 115 116 #define StoreByteGrayFrom4ByteArgb(pRas, PREFIX, x, a, r, g, b) \ 117 StoreByteGrayFrom3ByteRgb(pRas, PREFIX, x, r, g, b) 118 119 #define StoreByteGrayFrom1ByteGray(pRas, PREFIX, x, gray) \ 120 StoreByteGrayPixel(pRas, x, gray) 121 122 #define CopyByteGrayToIntArgbPre(pRGB, i, PREFIX, pRow, x) \ 123 LoadByteGrayTo1IntArgb(pRow, PREFIX, x, pRGB[i]) 124 125 126 #define DeclareByteGrayAlphaLoadData(PREFIX) 127 #define InitByteGrayAlphaLoadData(PREFIX, pRasInfo) 128 129 #define LoadAlphaFromByteGrayFor1ByteGray(pRas, PREFIX, COMP_PREFIX) \ 130 COMP_PREFIX ## A = 0xff 131 132 #define Postload1ByteGrayFromByteGray(pRas, PREFIX, COMP_PREFIX) \ 133 COMP_PREFIX ## G = pRas[0] 134 135 136 #define ByteGrayIsPremultiplied 0 137 138 #define DeclareByteGrayBlendFillVars(PREFIX) \ 139 jubyte PREFIX; 140 141 #define ClearByteGrayBlendFillVars(PREFIX, argb) \ 142 PREFIX = 0 143 144 #define InitByteGrayBlendFillVarsNonPre(PREFIX, argb, COMP_PREFIX) \ 145 PREFIX = (jubyte) COMP_PREFIX ## G 146 147 #define InitByteGrayBlendFillVarsPre(PREFIX, argb, COMP_PREFIX) 148 149 #define StoreByteGrayBlendFill(pRas, PREFIX, x, argb, COMP_PREFIX) \ 150 (pRas)[x] = PREFIX 151 152 #define StoreByteGrayFrom1ByteGrayComps(pRas, PREFIX, x, COMP_PREFIX) \ 153 StoreByteGrayPixel(pRas, x, COMP_PREFIX ## G) 154 155 #endif /* ByteGray_h_Included */ 156