Last change
on this file since 36231 was 15532, checked in by vboxsync, 16 years ago |
crOpenGL: export to OSE
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1 | /* Copyright (c) 2001, Stanford University
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2 | * All rights reserved.
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3 | *
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4 | * See the file LICENSE.txt for information on redistributing this software.
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5 | */
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6 |
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7 | /* Bit vector functions */
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8 |
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9 | #ifndef CR_BITS_H
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10 | #define CR_BITS_H
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11 |
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12 |
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13 | #include "cr_compiler.h"
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14 |
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15 |
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16 | #define CR_MAX_CONTEXTS 512
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17 | #define CR_MAX_BITARRAY (CR_MAX_CONTEXTS / 32) /* 32 contexts per uint */
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18 |
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19 | #ifdef __cplusplus
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20 | extern "C" {
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21 | #endif
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22 |
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23 | static INLINE void RESET( unsigned int *b, const unsigned int *d )
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24 | {
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25 | int j;
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26 | for (j=0;j<CR_MAX_BITARRAY;j++)
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27 | b[j] |= d[j];
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28 | }
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29 | static INLINE void DIRTY( unsigned int *b, const unsigned int *d )
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30 | {
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31 | int j;
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32 | for (j=0;j<CR_MAX_BITARRAY;j++)
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33 | b[j] = d[j];
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34 | }
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35 | static INLINE void FILLDIRTY( unsigned int *b )
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36 | {
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37 | int j;
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38 | for (j=0;j<CR_MAX_BITARRAY;j++)
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39 | b[j] = 0xffffffff;
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40 | }
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41 | static INLINE void CLEARDIRTY( unsigned int *b, const unsigned int *d )
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42 | {
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43 | int j;
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44 | for (j=0;j<CR_MAX_BITARRAY;j++)
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45 | b[j] &= d[j];
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46 | }
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47 |
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48 | /* As above, but complement the bits here instead of in the calling code */
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49 | static INLINE void CLEARDIRTY2( unsigned int *b, const unsigned int *d )
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50 | {
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51 | int j;
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52 | for (j=0;j<CR_MAX_BITARRAY;j++)
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53 | b[j] &= ~d[j];
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54 | }
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55 |
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56 | static INLINE int CHECKDIRTY( const unsigned int *b, const unsigned int *d )
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57 | {
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58 | int j;
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59 |
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60 | for (j=0;j<CR_MAX_BITARRAY;j++)
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61 | if (b[j] & d[j])
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62 | return 1;
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63 |
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64 | return 0;
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65 | }
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66 |
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67 | #ifdef __cplusplus
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68 | }
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69 | #endif
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70 |
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71 |
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72 | #endif /* CR_BITS_H */
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