1 /*
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3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
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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).
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19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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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 */
227