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 IntArgbPre_h_Included
  27 #define IntArgbPre_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 "IntArgbPre".
  34  */
  35 
  36 typedef jint    IntArgbPrePixelType;
  37 typedef jint    IntArgbPreDataType;
  38 
  39 #define IntArgbPreIsOpaque 0
  40 
  41 #define IntArgbPrePixelStride   4
  42 
  43 #define DeclareIntArgbPreLoadVars(PREFIX)
  44 #define DeclareIntArgbPreStoreVars(PREFIX)
  45 #define InitIntArgbPreLoadVars(PREFIX, pRasInfo)
  46 #define SetIntArgbPreStoreVarsYPos(PREFIX, pRasInfo, y)
  47 #define SetIntArgbPreStoreVarsXPos(PREFIX, pRasInfo, x)
  48 #define InitIntArgbPreStoreVarsY(PREFIX, pRasInfo)
  49 #define InitIntArgbPreStoreVarsX(PREFIX, pRasInfo)
  50 #define NextIntArgbPreStoreVarsX(PREFIX)
  51 #define NextIntArgbPreStoreVarsY(PREFIX)
  52 
  53 
  54 #define IntArgbPrePixelFromArgb(pixel, rgb, pRasInfo) \
  55     do { \
  56         if ((((rgb) >> 24) + 1) == 0) { \
  57             (pixel) = (rgb); \
  58         } else { \
  59             jint a, r, g, b; \
  60             ExtractIntDcmComponents1234(rgb, a, r, g, b); \
  61             r = MUL8(a, r); \
  62             g = MUL8(a, g); \
  63             b = MUL8(a, b); \
  64             (pixel) = ComposeIntDcmComponents1234(a, r, g, b); \
  65         } \
  66     } while (0)
  67 
  68 #define StoreIntArgbPrePixel(pRas, x, pixel) \
  69     (pRas)[x] = (pixel)
  70 
  71 #define DeclareIntArgbPrePixelData(PREFIX)
  72 
  73 #define ExtractIntArgbPrePixelData(PIXEL, PREFIX)
  74 
  75 #define StoreIntArgbPrePixelData(pPix, x, pixel, PREFIX) \
  76     (pPix)[x] = (pixel)
  77 
  78 
  79 /*
  80  * REMIND: we delegate to the ...To1IntArgb macro here, although it does
  81  *         slightly more work (may pack the alpha value into the RGB result)
  82  */
  83 #define LoadIntArgbPreTo1IntRgb(pRas, PREFIX, x, rgb) \
  84     LoadIntArgbPreTo1IntArgb(pRas, PREFIX, x, rgb)
  85 
  86 #define LoadIntArgbPreTo1IntArgb(pRas, PREFIX, x, argb) \
  87     do { \
  88         jint pixel = (pRas)[x]; \
  89         jint a = ((juint) pixel) >> 24; \
  90         if ((a == 0xff) || (a == 0)) { \
  91             (argb) = pixel; \
  92         } else { \
  93             jint r, g, b; \
  94             ExtractIntDcmComponentsX123(pixel, r, g, b); \
  95             r = DIV8(r, a); \
  96             g = DIV8(g, a); \
  97             b = DIV8(b, a); \
  98             (argb) = ComposeIntDcmComponents1234(a, r, g, b); \
  99         } \
 100     } while (0)
 101 
 102 #define LoadIntArgbPreTo3ByteRgb(pRas, PREFIX, x, r, g, b) \
 103     do { \
 104         jint a; \
 105         LoadIntArgbPreTo4ByteArgb(pRas, PREFIX, x, a, r, g, b); \
 106     } while (0)
 107 
 108 #define LoadIntArgbPreTo4ByteArgb(pRas, PREFIX, x, a, r, g, b) \
 109     do { \
 110         jint pixel = (pRas)[x]; \
 111         ExtractIntDcmComponents1234(pixel, a, r, g, b); \
 112         if (((a) != 0xff) && ((a) != 0)) { \
 113             (r) = DIV8(r, a); \
 114             (g) = DIV8(g, a); \
 115             (b) = DIV8(b, a); \
 116         } \
 117     } while (0)
 118 
 119 #define StoreIntArgbPreFrom1IntRgb(pRas, PREFIX, x, rgb) \
 120     (pRas)[x] = 0xff000000 | (rgb)
 121 
 122 #define StoreIntArgbPreFrom1IntArgb(pRas, PREFIX, x, argb) \
 123     do { \
 124         if ((((argb) >> 24) + 1) == 0) { \
 125             (pRas)[x] = (argb); \
 126         } else { \
 127             jint a, r, g, b; \
 128             ExtractIntDcmComponents1234(argb, a, r, g, b); \
 129             r = MUL8(a, r); \
 130             g = MUL8(a, g); \
 131             b = MUL8(a, b); \
 132             (pRas)[x] = ComposeIntDcmComponents1234(a, r, g, b); \
 133         } \
 134     } while (0)
 135 
 136 #define StoreIntArgbPreFrom3ByteRgb(pRas, PREFIX, x, r, g, b) \
 137     (pRas)[x] = ComposeIntDcmComponents1234(0xff, r, g, b)
 138 
 139 #define StoreIntArgbPreFrom4ByteArgb(pRas, PREFIX, x, a, r, g, b) \
 140     do { \
 141         if ((a) != 0xff) { \
 142             (r) = MUL8(a, r); \
 143             (g) = MUL8(a, g); \
 144             (b) = MUL8(a, b); \
 145         } \
 146         (pRas)[x] = ComposeIntDcmComponents1234(a, r, g, b); \
 147     } while (0)
 148 
 149 #define CopyIntArgbPreToIntArgbPre(pRGB, i, PREFIX, pRow, x) \
 150     (pRGB)[i] = (pRow)[x]
 151 
 152 
 153 #define DeclareIntArgbPreAlphaLoadData(PREFIX) \
 154     jint PREFIX;
 155 
 156 #define InitIntArgbPreAlphaLoadData(PREFIX, pRasInfo) \
 157     PREFIX = 0
 158 
 159 #define LoadAlphaFromIntArgbPreFor4ByteArgb(pRas, PREFIX, COMP_PREFIX) \
 160     do { \
 161         PREFIX = (pRas)[0]; \
 162         COMP_PREFIX ## A = ((juint) PREFIX) >> 24; \
 163     } while (0)
 164 
 165 #define LoadAlphaFromIntArgbPreFor1ByteGray(pRas, PREFIX, COMP_PREFIX) \
 166     LoadAlphaFromIntArgbPreFor4ByteArgb(pRas, PREFIX, COMP_PREFIX)
 167 
 168 #define LoadAlphaFromIntArgbPreFor1ShortGray(pRas, PREFIX, COMP_PREFIX) \
 169     do { \
 170         LoadAlphaFromIntArgbFor4ByteArgb(pRas, PREFIX, COMP_PREFIX); \
 171         COMP_PREFIX ## A = (COMP_PREFIX ## A << 8) + COMP_PREFIX ## A; \
 172     } while (0)
 173 
 174 #define Postload4ByteArgbFromIntArgbPre(pRas, PREFIX, COMP_PREFIX) \
 175     do { \
 176         ExtractIntDcmComponentsX123(PREFIX, COMP_PREFIX ## R, \
 177                                     COMP_PREFIX ## G, COMP_PREFIX ## B); \
 178     } while (0)
 179 
 180 #define Postload1ByteGrayFromIntArgbPre(pRas, PREFIX, COMP_PREFIX) \
 181     do { \
 182         int r, g, b; \
 183         ExtractIntDcmComponentsX123(PREFIX, r, g, b); \
 184         COMP_PREFIX ## G = ComposeByteGrayFrom3ByteRgb(r, g, b); \
 185     } while (0)
 186 
 187 #define Postload1ShortGrayFromIntArgbPre(pRas, PREFIX, COMP_PREFIX) \
 188     do { \
 189         int r, g, b; \
 190         ExtractIntDcmComponentsX123(PREFIX, r, g, b); \
 191         COMP_PREFIX ## G = ComposeUshortGrayFrom3ByteRgb(r, g, b); \
 192     } while (0)
 193 
 194 
 195 #define IntArgbPreIsPremultiplied       1
 196 
 197 #define DeclareIntArgbPreBlendFillVars(PREFIX)
 198 
 199 #define ClearIntArgbPreBlendFillVars(PREFIX, argb) \
 200     argb = 0
 201 
 202 #define InitIntArgbPreBlendFillVarsNonPre(PREFIX, argb, COMP_PREFIX)
 203 
 204 #define InitIntArgbPreBlendFillVarsPre(PREFIX, argb, COMP_PREFIX) \
 205     argb = ComposeIntDcmComponents1234(COMP_PREFIX ## A, \
 206                                        COMP_PREFIX ## R, \
 207                                        COMP_PREFIX ## G, \
 208                                        COMP_PREFIX ## B)
 209 
 210 #define StoreIntArgbPreBlendFill(pRas, PREFIX, x, argb, COMP_PREFIX) \
 211     (pRas)[x] = (argb)
 212 
 213 #define StoreIntArgbPreFrom4ByteArgbComps(pRas, PREFIX, x, COMP_PREFIX) \
 214     (pRas)[x] = ComposeIntDcmComponents1234(COMP_PREFIX ## A, \
 215                                             COMP_PREFIX ## R, \
 216                                             COMP_PREFIX ## G, \
 217                                             COMP_PREFIX ## B)
 218 
 219 /*
 220  * SrcOver ## TYPE ## BlendFactor
 221  * Returns appropriate blend value for use in blending calculations.
 222  */
 223 #define SrcOverIntArgbPreBlendFactor(dF, dA) \
 224     (dF)
 225 
 226 #endif /* IntArgbPre_h_Included */