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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).
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25 
26 #ifndef Index12Gray_h_Included
27 #define Index12Gray_h_Included
28 
29 #include "IntDcm.h"
30 #include "ByteGray.h"
31 
32 /*
33  * This file contains macro and type definitions used by the macros in
34  * LoopMacros.h to manipulate a surface of type "Index12Gray".
35  */
36 
37 typedef jushort Index12GrayPixelType;
38 typedef jushort Index12GrayDataType;
39 
40 #define Index12GrayIsOpaque 1
41 
42 #define Index12GrayPixelStride          2
43 #define Index12GrayBitsPerPixel        12
44 
45 #define DeclareIndex12GrayLoadVars(PREFIX) \
46     jint *PREFIX ## Lut;
47 
48 #define DeclareIndex12GrayStoreVars(PREFIX) \
49     jint *PREFIX ## InvGrayLut;
50 
51 #define SetIndex12GrayStoreVarsYPos(PREFIX, pRasInfo, LOC)
52 #define SetIndex12GrayStoreVarsXPos(PREFIX, pRasInfo, LOC)
53 #define InitIndex12GrayLoadVars(PREFIX, pRasInfo) \
54     PREFIX ## Lut = (pRasInfo)->lutBase
55 
56 #define InitIndex12GrayStoreVarsY(PREFIX, pRasInfo) \
57     PREFIX ## InvGrayLut = (pRasInfo)->invGrayTable;
58 
59 #define InitIndex12GrayStoreVarsX(PREFIX, pRasInfo)
60 #define NextIndex12GrayStoreVarsX(PREFIX)
61 #define NextIndex12GrayStoreVarsY(PREFIX)
62 
63 #define Index12GrayXparLutEntry                 -1
64 #define Index12GrayIsXparLutEntry(pix)          (pix < 0)
65 #define StoreIndex12GrayNonXparFromArgb         StoreIndex12GrayFrom1IntArgb
66 
67 #define StoreIndex12GrayPixel(pRas, x, pixel) \
68     ((pRas)[x] = (jushort) (pixel))
69 
70 #define DeclareIndex12GrayPixelData(PREFIX)
71 
72 #define ExtractIndex12GrayPixelData(PIXEL, PREFIX)
73 
74 #define StoreIndex12GrayPixelData(pPix, x, pixel, PREFIX) \
75     ((pPix)[x] = (jushort) (pixel))
76 
77 #define Index12GrayPixelFromArgb(pixel, rgb, pRasInfo) \
78     do { \
79         jint r, g, b, gray; \
80         ExtractIntDcmComponentsX123(rgb, r, g, b); \
81         gray = ComposeByteGrayFrom3ByteRgb(r, g, b); \
82         (pixel) = (pRasInfo)->invGrayTable[gray]; \
83     } while (0)
84 
85 #define LoadIndex12GrayTo1IntRgb(pRas, PREFIX, x, rgb) \
86     (rgb) = PREFIX ## Lut[pRas[x] & 0xfff]
87 
88 #define LoadIndex12GrayTo1IntArgb(pRas, PREFIX, x, argb) \
89     (argb) = PREFIX ## Lut[pRas[x] & 0xfff]
90 
91 #define LoadIndex12GrayTo1ByteGray(pRas, PREFIX, x, gray) \
92     (gray) = (jubyte)PREFIX ## Lut[pRas[x] & 0xfff]
93 
94 #define LoadIndex12GrayTo3ByteRgb(pRas, PREFIX, x, r, g, b) \
95     r = g = b = (jubyte)PREFIX ## Lut[pRas[x] & 0xfff]
96 
97 #define LoadIndex12GrayTo4ByteArgb(pRas, PREFIX, x, a, r, g, b) \
98     do { \
99         a = 0xff; \
100         LoadIndex12GrayTo3ByteRgb(pRas, PREFIX, x, r, g, b); \
101     } while (0)
102 
103 #define StoreIndex12GrayFrom1IntRgb(pRas, PREFIX, x, rgb) \
104     do { \
105         int r, g, b; \
106         ExtractIntDcmComponentsX123(rgb, r, g, b); \
107         StoreIndex12GrayFrom3ByteRgb(pRas, PREFIX, x, r, g, b); \
108     } while (0)
109 
110 #define StoreIndex12GrayFrom1IntArgb(pRas, PREFIX, x, argb) \
111     StoreIndex12GrayFrom1IntRgb(pRas, PREFIX, x, argb)
112 
113 #define StoreIndex12GrayFrom3ByteRgb(pRas, PREFIX, x, r, g, b) \
114     do { \
115         int gray = ComposeByteGrayFrom3ByteRgb(r, g, b); \
116         (pRas)[x] = (jushort) (PREFIX ## InvGrayLut[gray]); \
117     } while (0)
118 
119 #define StoreIndex12GrayFrom4ByteArgb(pRas, PREFIX, x, a, r, g, b) \
120     StoreIndex12GrayFrom3ByteRgb(pRas, PREFIX, x, r, g, b)
121 
122 #define StoreIndex12GrayFrom1ByteGray(pRas, PREFIX, x, gray) \
123     (pRas)[x] = (jushort) (PREFIX ## InvGrayLut[gray]);
124 
125 #define CopyIndex12GrayToIntArgbPre(pRGB, i, PREFIX, pRow, x) \
126     (pRGB)[i] = PREFIX ## Lut[(pRow)[x] & 0xfff]
127 
128 
129 #define DeclareIndex12GrayAlphaLoadData(PREFIX) \
130     jint *PREFIX ## Lut;
131 
132 #define InitIndex12GrayAlphaLoadData(PREFIX, pRasInfo) \
133     PREFIX ## Lut = (pRasInfo)->lutBase
134 
135 #define LoadAlphaFromIndex12GrayFor1ByteGray(pRas, PREFIX, COMP_PREFIX) \
136     COMP_PREFIX ## A = 0xff
137 
138 #define Postload1ByteGrayFromIndex12Gray(pRas, PREFIX, COMP_PREFIX) \
139     COMP_PREFIX ## G = (jubyte)PREFIX ## Lut[(pRas)[0] & 0xfff]
140 
141 #define StoreIndex12GrayFrom1ByteGrayComps(pRas, PREFIX, x, COMP_PREFIX) \
142     StoreIndex12GrayFrom1ByteGray(pRas, PREFIX, x, COMP_PREFIX ## G)
143 
144 #define Index12GrayIsPremultiplied      0
145 
146 #endif /* Index12Gray_h_Included */
147