1 /*
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3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
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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  *
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19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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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, PREFIX ## RepPrims; \
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         PREFIX ## RepPrims = (pRasInfo)->representsPrimaries; \
74     } while (0)
75 
76 #define InitByteIndexedStoreVarsX(PREFIX, pRasInfo) \
77     SetByteIndexedStoreVarsXPos(PREFIX, pRasInfo, (pRasInfo)->bounds.x1);
78 
79 
80 #define NextByteIndexedStoreVarsX(PREFIX) \
81     PREFIX ## XDither = (PREFIX ## XDither + 1) & 7
82 
83 #define NextByteIndexedStoreVarsY(PREFIX) \
84     PREFIX ## YDither = (PREFIX ## YDither + (1 << 3)) & (7 << 3)
85 
86 typedef jubyte  ByteIndexedBmPixelType;
87 typedef jubyte  ByteIndexedBmDataType;
88 
89 #define ByteIndexedBmPixelStride        1
90 #define ByteIndexedBmBitsPerPixel       8
91 
92 #define DeclareByteIndexedBmLoadVars    DeclareByteIndexedLoadVars
93 #define DeclareByteIndexedBmStoreVars   DeclareByteIndexedStoreVars
94 #define InitByteIndexedBmLoadVars       InitByteIndexedLoadVars
95 #define InitByteIndexedBmStoreVarsY     InitByteIndexedStoreVarsY
96 #define InitByteIndexedBmStoreVarsX     InitByteIndexedStoreVarsX
97 #define NextByteIndexedBmStoreVarsX     NextByteIndexedStoreVarsX
98 #define NextByteIndexedBmStoreVarsY     NextByteIndexedStoreVarsY
99 
100 #define LoadByteIndexedBmTo1IntArgb     LoadByteIndexedTo1IntArgb
101 
102 #define CopyByteIndexedBmToIntArgbPre(pRGB, i, PREFIX, pRow, x) \
103     do { \
104         jint argb = PREFIX ## Lut[pRow[x]]; \
105         (pRGB)[i] = argb & (argb >> 24); \
106     } while (0)
107 
108 
109 #define ByteIndexedXparLutEntry                 -1
110 #define ByteIndexedIsXparLutEntry(pix)          (pix < 0)
111 #define StoreByteIndexedNonXparFromArgb         StoreByteIndexedFrom1IntArgb
112 
113 #define StoreByteIndexedPixel(pRas, x, pixel) \
114     ((pRas)[x] = (jubyte) (pixel))
115 
116 #define DeclareByteIndexedPixelData(PREFIX)
117 #define ExtractByteIndexedPixelData(PIXEL, PREFIX)
118 
119 #define StoreByteIndexedPixelData(pPix, x, pixel, PREFIX) \
120     (pPix)[x] = (jubyte) (pixel)
121 
122 #define ByteIndexedPixelFromArgb(pixel, rgb, pRasInfo) \
123     do { \
124         jint r, g, b; \
125         ExtractIntDcmComponentsX123(rgb, r, g, b); \
126         (pixel) = SurfaceData_InvColorMap((pRasInfo)->invColorTable, \
127                                           r, g, b); \
128     } while (0)
129 
130 #define LoadByteIndexedTo1IntRgb(pRas, PREFIX, x, rgb) \
131     (rgb) = PREFIX ## Lut[pRas[x]]
132 
133 #define LoadByteIndexedTo1IntArgb(pRas, PREFIX, x, argb) \
134     (argb) = PREFIX ## Lut[pRas[x]]
135 
136 #define LoadByteIndexedTo3ByteRgb(pRas, PREFIX, x, r, g, b) \
137     do { \
138         jint rgb = PREFIX ## Lut[pRas[x]]; \
139         ExtractIntDcmComponentsX123(rgb, r, g, b); \
140     } while (0)
141 
142 #define LoadByteIndexedTo4ByteArgb(pRas, PREFIX, x, a, r, g, b) \
143     do { \
144         jint argb = PREFIX ## Lut[pRas[x]]; \
145         ExtractIntDcmComponents1234(argb, a, r, g, b); \
146     } while (0)
147 
148 #define ByteClamp1Component(X)  \
149     do { if (((X) >> 8) != 0) {X = (~(X >> 31)) & 255; } } while (0)
150 
151 #define ByteClamp3Components(R, G, B) \
152     do { \
153         if (((R|G|B) >> 8) != 0) { \
154             ByteClamp1Component(R); \
155             ByteClamp1Component(G); \
156             ByteClamp1Component(B); \
157         } \
158     } while (0)
159 
160 #define StoreByteIndexedFrom1IntRgb(pRas, PREFIX, x, rgb) \
161     do { \
162         int r, g, b; \
163         ExtractIntDcmComponentsX123(rgb, r, g, b); \
164         StoreByteIndexedFrom3ByteRgb(pRas, PREFIX, x, r, g, b); \
165     } while (0)
166 
167 #define StoreByteIndexedFrom1IntArgb(pRas, PREFIX, x, argb) \
168     StoreByteIndexedFrom1IntRgb(pRas, PREFIX, x, argb)
169 
170 #define StoreByteIndexedFrom3ByteRgb(pRas, PREFIX, x, r, g, b) \
171     do { \
172         if (!(((r == 0) || (r == 255)) && \
173               ((g == 0) || (g == 255)) && \
174               ((b == 0) || (b == 255)) && \
175               PREFIX ## RepPrims)) { \
176             r += PREFIX ## rerr[PREFIX ## XDither]; \
177             g += PREFIX ## gerr[PREFIX ## XDither]; \
178             b += PREFIX ## berr[PREFIX ## XDither]; \
179         } \
180         ByteClamp3Components(r, g, b); \
181         (pRas)[x] = SurfaceData_InvColorMap(PREFIX ## InvLut, r, g, b); \
182     } while (0)
183 
184 #define StoreByteIndexedFrom4ByteArgb(pRas, PREFIX, x, a, r, g, b) \
185     StoreByteIndexedFrom3ByteRgb(pRas, PREFIX, x, r, g, b)
186 
187 #define CopyByteIndexedToIntArgbPre(pRGB, i, PREFIX, pRow, x) \
188     do { \
189         jint argb = PREFIX ## Lut[pRow[x]]; \
190         jint a = URShift(argb, 24); \
191         if (a == 0) { \
192             argb = 0; \
193         } else if (a < 0xff) { \
194             jint r = (argb >> 16) & 0xff; \
195             jint g = (argb >>  8) & 0xff; \
196             jint b = (argb      ) & 0xff; \
197             r = MUL8(a, r); \
198             g = MUL8(a, g); \
199             b = MUL8(a, b); \
200             argb = ComposeIntDcmComponents1234(a, r, g, b); \
201         } \
202         (pRGB)[i] = argb; \
203     } while (0)
204 
205 
206 #define DeclareByteIndexedAlphaLoadData(PREFIX) \
207     jint *PREFIX ## Lut; \
208     jint PREFIX ## rgb;
209 
210 #define InitByteIndexedAlphaLoadData(PREFIX, pRasInfo) \
211     do { \
212         PREFIX ## Lut = (pRasInfo)->lutBase; \
213         PREFIX ## rgb = 0; \
214     } while (0)
215 
216 #define LoadAlphaFromByteIndexedFor4ByteArgb(pRas, PREFIX, COMP_PREFIX) \
217     do { \
218         PREFIX ## rgb = PREFIX ## Lut[(pRas)[0]]; \
219         COMP_PREFIX ## A = ((juint) PREFIX ## rgb) >> 24; \
220     } while (0)
221 
222 #define Postload4ByteArgbFromByteIndexed(pRas, PREFIX, COMP_PREFIX) \
223     do { \
224         COMP_PREFIX ## R = (PREFIX ## rgb >> 16) & 0xff; \
225         COMP_PREFIX ## G = (PREFIX ## rgb >>  8) & 0xff; \
226         COMP_PREFIX ## B = (PREFIX ## rgb >>  0) & 0xff; \
227     } while (0)
228 
229 
230 #define ByteIndexedIsPremultiplied      0
231 
232 #define StoreByteIndexedFrom4ByteArgbComps(pRas, PREFIX, x, COMP_PREFIX) \
233     StoreByteIndexedFrom4ByteArgb(pRas, PREFIX, x, \
234                                   COMP_PREFIX ## A, COMP_PREFIX ## R, \
235                                   COMP_PREFIX ## G, COMP_PREFIX ## B)
236 
237 #endif /* ByteIndexed_h_Included */
238