1 /*
   2  * Copyright (c) 2000, 2013, 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 ByteIndexed_h_Included
  27 #define ByteIndexed_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 "ByteIndexed".
  34  */
  35 
  36 typedef jubyte  ByteIndexedPixelType;
  37 typedef jubyte  ByteIndexedDataType;
  38 
  39 #define ByteIndexedPixelStride          1
  40 #define ByteIndexedBitsPerPixel         8
  41 
  42 #define DeclareByteIndexedLoadVars(PREFIX) \
  43     jint *PREFIX ## Lut;
  44 
  45 #define DeclareByteIndexedStoreVars(PREFIX) \
  46     int PREFIX ## XDither, PREFIX ## YDither; \
  47     char *PREFIX ## rerr, *PREFIX ## gerr, *PREFIX ## berr; \
  48     unsigned char *PREFIX ## InvLut;
  49 
  50 #define SetByteIndexedStoreVarsYPos(PREFIX, pRasInfo, LOC) \
  51     do { \
  52          PREFIX ## YDither = ((LOC & 7) << 3); \
  53     } while (0)
  54 
  55 #define SetByteIndexedStoreVarsXPos(PREFIX, pRasInfo, LOC) \
  56     do { \
  57         PREFIX ## rerr = (pRasInfo)->redErrTable + PREFIX ## YDither; \
  58         PREFIX ## gerr = (pRasInfo)->grnErrTable + PREFIX ## YDither; \
  59         PREFIX ## berr = (pRasInfo)->bluErrTable + PREFIX ## YDither; \
  60         PREFIX ## XDither = (LOC & 7); \
  61     } while (0)
  62 
  63 #define InitByteIndexedLoadVars(PREFIX, pRasInfo) \
  64     PREFIX ## Lut = (pRasInfo)->lutBase
  65 
  66 /* REMIND Could collapse Init..Store..X and Init..Store..Y into one Init
  67  * and factor out the Set.. macros.
  68  */
  69 #define InitByteIndexedStoreVarsY(PREFIX, pRasInfo) \
  70     do { \
  71         SetByteIndexedStoreVarsYPos(PREFIX, pRasInfo, (pRasInfo)->bounds.y1); \
  72         PREFIX ## InvLut = (pRasInfo)->invColorTable; \
  73     } while (0)
  74 
  75 #define InitByteIndexedStoreVarsX(PREFIX, pRasInfo) \
  76     SetByteIndexedStoreVarsXPos(PREFIX, pRasInfo, (pRasInfo)->bounds.x1);
  77 
  78 
  79 #define NextByteIndexedStoreVarsX(PREFIX) \
  80     PREFIX ## XDither = (PREFIX ## XDither + 1) & 7
  81 
  82 #define NextByteIndexedStoreVarsY(PREFIX) \
  83     PREFIX ## YDither = (PREFIX ## YDither + (1 << 3)) & (7 << 3)
  84 
  85 typedef jubyte  ByteIndexedBmPixelType;
  86 typedef jubyte  ByteIndexedBmDataType;
  87 
  88 #define ByteIndexedBmPixelStride        1
  89 #define ByteIndexedBmBitsPerPixel       8
  90 
  91 #define DeclareByteIndexedBmLoadVars    DeclareByteIndexedLoadVars
  92 #define DeclareByteIndexedBmStoreVars   DeclareByteIndexedStoreVars
  93 #define InitByteIndexedBmLoadVars       InitByteIndexedLoadVars
  94 #define InitByteIndexedBmStoreVarsY     InitByteIndexedStoreVarsY
  95 #define InitByteIndexedBmStoreVarsX     InitByteIndexedStoreVarsX
  96 #define NextByteIndexedBmStoreVarsX     NextByteIndexedStoreVarsX
  97 #define NextByteIndexedBmStoreVarsY     NextByteIndexedStoreVarsY
  98 
  99 #define LoadByteIndexedBmTo1IntArgb     LoadByteIndexedTo1IntArgb
 100 
 101 #define CopyByteIndexedBmToIntArgbPre(pRGB, i, PREFIX, pRow, x) \
 102     do { \
 103         jint argb = PREFIX ## Lut[pRow[x]]; \
 104         (pRGB)[i] = argb & (argb >> 24); \
 105     } while (0)
 106 
 107 
 108 #define ByteIndexedXparLutEntry                 -1
 109 #define ByteIndexedIsXparLutEntry(pix)          (pix < 0)
 110 #define StoreByteIndexedNonXparFromArgb         StoreByteIndexedFrom1IntArgb
 111 
 112 #define StoreByteIndexedPixel(pRas, x, pixel) \
 113     ((pRas)[x] = (jubyte) (pixel))
 114 
 115 #define DeclareByteIndexedPixelData(PREFIX)
 116 #define ExtractByteIndexedPixelData(PIXEL, PREFIX)
 117 
 118 #define StoreByteIndexedPixelData(pPix, x, pixel, PREFIX) \
 119     (pPix)[x] = (jubyte) (pixel)
 120 
 121 #define ByteIndexedPixelFromArgb(pixel, rgb, pRasInfo) \
 122     do { \
 123         jint r, g, b; \
 124         ExtractIntDcmComponentsX123(rgb, r, g, b); \
 125         (pixel) = SurfaceData_InvColorMap((pRasInfo)->invColorTable, \
 126                                           r, g, b); \
 127     } while (0)
 128 
 129 #define LoadByteIndexedTo1IntRgb(pRas, PREFIX, x, rgb) \
 130     (rgb) = PREFIX ## Lut[pRas[x]]
 131 
 132 #define LoadByteIndexedTo1IntArgb(pRas, PREFIX, x, argb) \
 133     (argb) = PREFIX ## Lut[pRas[x]]
 134 
 135 #define LoadByteIndexedTo3ByteRgb(pRas, PREFIX, x, r, g, b) \
 136     do { \
 137         jint rgb = PREFIX ## Lut[pRas[x]]; \
 138         ExtractIntDcmComponentsX123(rgb, r, g, b); \
 139     } while (0)
 140 
 141 #define LoadByteIndexedTo4ByteArgb(pRas, PREFIX, x, a, r, g, b) \
 142     do { \
 143         jint argb = PREFIX ## Lut[pRas[x]]; \
 144         ExtractIntDcmComponents1234(argb, a, r, g, b); \
 145     } while (0)
 146 
 147 #define ByteClamp1Component(X)  \
 148     do { if (((X) >> 8) != 0) {X = (~(X >> 31)) & 255; } } while (0)
 149 
 150 #define ByteClamp3Components(R, G, B) \
 151     do { \
 152         if (((R|G|B) >> 8) != 0) { \
 153             ByteClamp1Component(R); \
 154             ByteClamp1Component(G); \
 155             ByteClamp1Component(B); \
 156         } \
 157     } while (0)
 158 
 159 #define StoreByteIndexedFrom1IntRgb(pRas, PREFIX, x, rgb) \
 160     do { \
 161         int r, g, b; \
 162         ExtractIntDcmComponentsX123(rgb, r, g, b); \
 163         StoreByteIndexedFrom3ByteRgb(pRas, PREFIX, x, r, g, b); \
 164     } while (0)
 165 
 166 #define StoreByteIndexedFrom1IntArgb(pRas, PREFIX, x, argb) \
 167     StoreByteIndexedFrom1IntRgb(pRas, PREFIX, x, argb)
 168 
 169 #define StoreByteIndexedFrom3ByteRgb(pRas, PREFIX, x, r, g, b) \
 170     do { \
 171         r += PREFIX ## rerr[PREFIX ## XDither]; \
 172         g += PREFIX ## gerr[PREFIX ## XDither]; \
 173         b += PREFIX ## berr[PREFIX ## XDither]; \
 174         ByteClamp3Components(r, g, b); \
 175         (pRas)[x] = SurfaceData_InvColorMap(PREFIX ## InvLut, r, g, b); \
 176     } while (0)
 177 
 178 #define StoreByteIndexedFrom4ByteArgb(pRas, PREFIX, x, a, r, g, b) \
 179     StoreByteIndexedFrom3ByteRgb(pRas, PREFIX, x, r, g, b)
 180 
 181 #define CopyByteIndexedToIntArgbPre(pRGB, i, PREFIX, pRow, x) \
 182     do { \
 183         jint argb = PREFIX ## Lut[pRow[x]]; \
 184         jint a = URShift(argb, 24); \
 185         if (a == 0) { \
 186             argb = 0; \
 187         } else if (a < 0xff) { \
 188             jint r = (argb >> 16) & 0xff; \
 189             jint g = (argb >>  8) & 0xff; \
 190             jint b = (argb      ) & 0xff; \
 191             r = MUL8(a, r); \
 192             g = MUL8(a, g); \
 193             b = MUL8(a, b); \
 194             argb = ComposeIntDcmComponents1234(a, r, g, b); \
 195         } \
 196         (pRGB)[i] = argb; \
 197     } while (0)
 198 
 199 
 200 #define DeclareByteIndexedAlphaLoadData(PREFIX) \
 201     jint *PREFIX ## Lut; \
 202     jint PREFIX ## rgb;
 203 
 204 #define InitByteIndexedAlphaLoadData(PREFIX, pRasInfo) \
 205     do { \
 206         PREFIX ## Lut = (pRasInfo)->lutBase; \
 207         PREFIX ## rgb = 0; \
 208     } while (0)
 209 
 210 #define LoadAlphaFromByteIndexedFor4ByteArgb(pRas, PREFIX, COMP_PREFIX) \
 211     do { \
 212         PREFIX ## rgb = PREFIX ## Lut[(pRas)[0]]; \
 213         COMP_PREFIX ## A = ((juint) PREFIX ## rgb) >> 24; \
 214     } while (0)
 215 
 216 #define Postload4ByteArgbFromByteIndexed(pRas, PREFIX, COMP_PREFIX) \
 217     do { \
 218         COMP_PREFIX ## R = (PREFIX ## rgb >> 16) & 0xff; \
 219         COMP_PREFIX ## G = (PREFIX ## rgb >>  8) & 0xff; \
 220         COMP_PREFIX ## B = (PREFIX ## rgb >>  0) & 0xff; \
 221     } while (0)
 222 
 223 
 224 #define ByteIndexedIsPremultiplied      0
 225 
 226 #define StoreByteIndexedFrom4ByteArgbComps(pRas, PREFIX, x, COMP_PREFIX) \
 227     StoreByteIndexedFrom4ByteArgb(pRas, PREFIX, x, \
 228                                   COMP_PREFIX ## A, COMP_PREFIX ## R, \
 229                                   COMP_PREFIX ## G, COMP_PREFIX ## B)
 230 
 231 #endif /* ByteIndexed_h_Included */