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-rw-r--r--indra/llcommon/llbitpack.h342
1 files changed, 171 insertions, 171 deletions
diff --git a/indra/llcommon/llbitpack.h b/indra/llcommon/llbitpack.h
index f99a354cd4..f7eb57a4f0 100644
--- a/indra/llcommon/llbitpack.h
+++ b/indra/llcommon/llbitpack.h
@@ -1,25 +1,25 @@
-/**
+/**
* @file llbitpack.h
* @brief Convert data to packed bit stream
*
* $LicenseInfo:firstyear=2000&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2010, Linden Research, Inc.
- *
+ *
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation;
* version 2.1 of the License only.
- *
+ *
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
- *
+ *
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
+ *
* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
* $/LicenseInfo$
*/
@@ -35,174 +35,174 @@ const U32 MAX_DATA_BITS = 8;
class LLBitPack
{
public:
- LLBitPack(U8 *buffer, U32 max_size) : mBuffer(buffer), mBufferSize(0), mLoad(0), mLoadSize(0), mTotalBits(0), mMaxSize(max_size)
- {
- }
-
- ~LLBitPack()
- {
- }
-
- void resetBitPacking()
- {
- mLoad = 0;
- mLoadSize = 0;
- mTotalBits = 0;
- mBufferSize = 0;
- }
-
- U32 bitPack(U8 *total_data, U32 total_dsize)
- {
- U32 dsize;
- U8 data;
-
- while (total_dsize > 0)
- {
- if (total_dsize > MAX_DATA_BITS)
- {
- dsize = MAX_DATA_BITS;
- total_dsize -= MAX_DATA_BITS;
- }
- else
- {
- dsize = total_dsize;
- total_dsize = 0;
- }
-
- data = *total_data++;
-
- data <<= (MAX_DATA_BITS - dsize);
- while (dsize > 0)
- {
- if (mLoadSize == MAX_DATA_BITS)
- {
- *(mBuffer + mBufferSize++) = mLoad;
- if (mBufferSize > mMaxSize)
- {
- LL_ERRS() << "mBufferSize exceeding mMaxSize!" << LL_ENDL;
- }
- mLoadSize = 0;
- mLoad = 0x00;
- }
- mLoad <<= 1;
- mLoad |= (data >> (MAX_DATA_BITS - 1));
- data <<= 1;
- mLoadSize++;
- mTotalBits++;
- dsize--;
- }
- }
- return mBufferSize;
- }
-
- U32 bitCopy(U8 *total_data, U32 total_dsize)
- {
- U32 dsize;
- U8 data;
-
- while (total_dsize > 0)
- {
- if (total_dsize > MAX_DATA_BITS)
- {
- dsize = MAX_DATA_BITS;
- total_dsize -= MAX_DATA_BITS;
- }
- else
- {
- dsize = total_dsize;
- total_dsize = 0;
- }
-
- data = *total_data++;
-
- while (dsize > 0)
- {
- if (mLoadSize == MAX_DATA_BITS)
- {
- *(mBuffer + mBufferSize++) = mLoad;
- if (mBufferSize > mMaxSize)
- {
- LL_ERRS() << "mBufferSize exceeding mMaxSize!" << LL_ENDL;
- }
- mLoadSize = 0;
- mLoad = 0x00;
- }
- mLoad <<= 1;
- mLoad |= (data >> (MAX_DATA_BITS - 1));
- data <<= 1;
- mLoadSize++;
- mTotalBits++;
- dsize--;
- }
- }
- return mBufferSize;
- }
-
- U32 bitUnpack(U8 *total_retval, U32 total_dsize)
- {
- U32 dsize;
- U8 *retval;
-
- while (total_dsize > 0)
- {
- if (total_dsize > MAX_DATA_BITS)
- {
- dsize = MAX_DATA_BITS;
- total_dsize -= MAX_DATA_BITS;
- }
- else
- {
- dsize = total_dsize;
- total_dsize = 0;
- }
-
- retval = total_retval++;
- *retval = 0x00;
- while (dsize > 0)
- {
- if (mLoadSize == 0)
- {
+ LLBitPack(U8 *buffer, U32 max_size) : mBuffer(buffer), mBufferSize(0), mLoad(0), mLoadSize(0), mTotalBits(0), mMaxSize(max_size)
+ {
+ }
+
+ ~LLBitPack()
+ {
+ }
+
+ void resetBitPacking()
+ {
+ mLoad = 0;
+ mLoadSize = 0;
+ mTotalBits = 0;
+ mBufferSize = 0;
+ }
+
+ U32 bitPack(U8 *total_data, U32 total_dsize)
+ {
+ U32 dsize;
+ U8 data;
+
+ while (total_dsize > 0)
+ {
+ if (total_dsize > MAX_DATA_BITS)
+ {
+ dsize = MAX_DATA_BITS;
+ total_dsize -= MAX_DATA_BITS;
+ }
+ else
+ {
+ dsize = total_dsize;
+ total_dsize = 0;
+ }
+
+ data = *total_data++;
+
+ data <<= (MAX_DATA_BITS - dsize);
+ while (dsize > 0)
+ {
+ if (mLoadSize == MAX_DATA_BITS)
+ {
+ *(mBuffer + mBufferSize++) = mLoad;
+ if (mBufferSize > mMaxSize)
+ {
+ LL_ERRS() << "mBufferSize exceeding mMaxSize!" << LL_ENDL;
+ }
+ mLoadSize = 0;
+ mLoad = 0x00;
+ }
+ mLoad <<= 1;
+ mLoad |= (data >> (MAX_DATA_BITS - 1));
+ data <<= 1;
+ mLoadSize++;
+ mTotalBits++;
+ dsize--;
+ }
+ }
+ return mBufferSize;
+ }
+
+ U32 bitCopy(U8 *total_data, U32 total_dsize)
+ {
+ U32 dsize;
+ U8 data;
+
+ while (total_dsize > 0)
+ {
+ if (total_dsize > MAX_DATA_BITS)
+ {
+ dsize = MAX_DATA_BITS;
+ total_dsize -= MAX_DATA_BITS;
+ }
+ else
+ {
+ dsize = total_dsize;
+ total_dsize = 0;
+ }
+
+ data = *total_data++;
+
+ while (dsize > 0)
+ {
+ if (mLoadSize == MAX_DATA_BITS)
+ {
+ *(mBuffer + mBufferSize++) = mLoad;
+ if (mBufferSize > mMaxSize)
+ {
+ LL_ERRS() << "mBufferSize exceeding mMaxSize!" << LL_ENDL;
+ }
+ mLoadSize = 0;
+ mLoad = 0x00;
+ }
+ mLoad <<= 1;
+ mLoad |= (data >> (MAX_DATA_BITS - 1));
+ data <<= 1;
+ mLoadSize++;
+ mTotalBits++;
+ dsize--;
+ }
+ }
+ return mBufferSize;
+ }
+
+ U32 bitUnpack(U8 *total_retval, U32 total_dsize)
+ {
+ U32 dsize;
+ U8 *retval;
+
+ while (total_dsize > 0)
+ {
+ if (total_dsize > MAX_DATA_BITS)
+ {
+ dsize = MAX_DATA_BITS;
+ total_dsize -= MAX_DATA_BITS;
+ }
+ else
+ {
+ dsize = total_dsize;
+ total_dsize = 0;
+ }
+
+ retval = total_retval++;
+ *retval = 0x00;
+ while (dsize > 0)
+ {
+ if (mLoadSize == 0)
+ {
#ifdef _DEBUG
- if (mBufferSize > mMaxSize)
- {
- LL_ERRS() << "mBufferSize exceeding mMaxSize" << LL_ENDL;
- LL_ERRS() << mBufferSize << " > " << mMaxSize << LL_ENDL;
- }
+ if (mBufferSize > mMaxSize)
+ {
+ LL_ERRS() << "mBufferSize exceeding mMaxSize" << LL_ENDL;
+ LL_ERRS() << mBufferSize << " > " << mMaxSize << LL_ENDL;
+ }
#endif
- mLoad = *(mBuffer + mBufferSize++);
- mLoadSize = MAX_DATA_BITS;
- }
- *retval <<= 1;
- *retval |= (mLoad >> (MAX_DATA_BITS - 1));
- mLoadSize--;
- mLoad <<= 1;
- dsize--;
- }
- }
- return mBufferSize;
- }
-
- U32 flushBitPack()
- {
- if (mLoadSize)
- {
- mLoad <<= (MAX_DATA_BITS - mLoadSize);
- *(mBuffer + mBufferSize++) = mLoad;
- if (mBufferSize > mMaxSize)
- {
- LL_ERRS() << "mBufferSize exceeding mMaxSize!" << LL_ENDL;
- }
- mLoadSize = 0;
- }
- return mBufferSize;
- }
-
- U8 *mBuffer;
- U32 mBufferSize;
- U8 mLoad;
- U32 mLoadSize;
- U32 mTotalBits;
- U32 mMaxSize;
+ mLoad = *(mBuffer + mBufferSize++);
+ mLoadSize = MAX_DATA_BITS;
+ }
+ *retval <<= 1;
+ *retval |= (mLoad >> (MAX_DATA_BITS - 1));
+ mLoadSize--;
+ mLoad <<= 1;
+ dsize--;
+ }
+ }
+ return mBufferSize;
+ }
+
+ U32 flushBitPack()
+ {
+ if (mLoadSize)
+ {
+ mLoad <<= (MAX_DATA_BITS - mLoadSize);
+ *(mBuffer + mBufferSize++) = mLoad;
+ if (mBufferSize > mMaxSize)
+ {
+ LL_ERRS() << "mBufferSize exceeding mMaxSize!" << LL_ENDL;
+ }
+ mLoadSize = 0;
+ }
+ return mBufferSize;
+ }
+
+ U8 *mBuffer;
+ U32 mBufferSize;
+ U8 mLoad;
+ U32 mLoadSize;
+ U32 mTotalBits;
+ U32 mMaxSize;
};
#endif
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