FreeCalypso > hg > fc-magnetite

annotate src/gpf2/ccd/bitfun.h @ 701:35e7f9d0379f

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targets: add TARGET_HAS_BUZZER to c11x, c139 and dsample This new target config preprocessor symbol was introduced in Tourmaline in connection with the new approach to playing buzzer melodies via PWT, properly omitting the responsible code on targets where BU output controls the vibrator instead. That code is not present in Magnetite and we have no plans to backport it here, but target header files should be kept consistent between the two trees, especially given that we plan to support FC Venus target in Magnetite.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 26 Mar 2022 19:51:34 +0000
parents 864b8cc0cf63
children
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1
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1 /*
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2 +-----------------------------------------------------------------------------
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3 | Project :
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4 | Modul : bitfun.h
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5 +-----------------------------------------------------------------------------
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6 | Copyright 2002 Texas Instruments Berlin, AG
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7 | All rights reserved.
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8 |
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9 | This file is confidential and a trade secret of Texas
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10 | Instruments Berlin, AG
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11 | The receipt of or possession of this file does not convey
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12 | any rights to reproduce or disclose its contents or to
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13 | manufacture, use, or sell anything it may describe, in
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14 | whole, or in part, without the specific written consent of
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15 | Texas Instruments Berlin, AG.
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16 +-----------------------------------------------------------------------------
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17 | Purpose : Condat Coder Decoder
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18 | Prototypes of the elementary bit manipulation functions
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19 +-----------------------------------------------------------------------------
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20 */
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21
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22
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23 #ifndef __BITFUN
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24 #define __BITFUN
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25
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26
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27 #ifndef __BITFUN_C__
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28
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29 EXTERN void bf_writePadBits (T_CCD_Globs *globs);
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30 EXTERN void bf_writeVal (ULONG value, ULONG bSize, T_CCD_Globs *globs);
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31 EXTERN ULONG bf_getBits (ULONG len, T_CCD_Globs *globs);
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32 EXTERN void bf_writeBitStr_PER (USHORT len, T_CCD_Globs *globs);
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33 EXTERN void bf_readBitStr_PER (USHORT len, T_CCD_Globs *globs);
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34 EXTERN void bf_writeBits (ULONG len, T_CCD_Globs *globs);
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35 EXTERN void bf_readBits (ULONG len, T_CCD_Globs *globs);
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36 EXTERN void bf_writeBitChunk (ULONG len, T_CCD_Globs *globs);
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37 EXTERN void bf_readBitChunk (ULONG len, T_CCD_Globs *globs);
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38 EXTERN BOOL bf_readBit (T_CCD_Globs *globs);
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39 EXTERN void bf_writeBit (BOOL Bit, T_CCD_Globs *globs);
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40 EXTERN UBYTE bf_decodeByteNumber (const ULONG len, T_CCD_Globs *globs);
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41 EXTERN ULONG bf_decodeShortNumber (const ULONG len, T_CCD_Globs *globs);
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42 EXTERN ULONG bf_decodeLongNumber (UBYTE len, T_CCD_Globs *globs);
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43 EXTERN void bf_codeShortNumber (UBYTE len, USHORT val, T_CCD_Globs *globs);
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44 EXTERN void bf_codeByteNumber (UBYTE len, UBYTE val, T_CCD_Globs *globs);
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45 EXTERN void bf_codeLongNumber (UBYTE len, ULONG val, T_CCD_Globs *globs);
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46 EXTERN void bf_recodeShortNumber (USHORT pos, UBYTE len, USHORT val, T_CCD_Globs *globs);
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47 EXTERN void bf_recodeByteNumber (USHORT pos, UBYTE len, UBYTE val, T_CCD_Globs *globs);
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48 EXTERN void bf_recodeBit (USHORT pos, UBYTE Bit, T_CCD_Globs *globs);
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49 EXTERN void bf_rShift8Bit (USHORT srcBitPos, USHORT bitLen, T_CCD_Globs *globs);
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50
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51 #endif /* __BITFUN_C__ */
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52
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53 /* a Macro for incrementing the position in the bitbuffer */
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54 /* _bitpos, _bytepos and _byteoffs are recalculated */
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55
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56 #define bf_incBitpos(A, globs) globs->bitpos = (USHORT)(globs->bitpos+(A));\
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57 globs->bytepos = (USHORT)(globs->bitpos >> 3);\
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58 globs->byteoffs = (UBYTE)(globs->bitpos & 7)
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59 #define bf_setBitpos(A, globs) globs->bitpos = (USHORT)(A);\
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60 globs->bytepos = (USHORT)(globs->bitpos >> 3);\
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61 globs->byteoffs = (UBYTE)(globs->bitpos & 7)
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62
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63 /*
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64 * end of bitstream if we can not read almost 4 bits
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65 */
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66 #define bf_endOfBitstream(globs) (globs->bitpos >= globs->maxBitpos)
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67
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68 #endif