mirror of
https://github.com/bsnes-emu/bsnes.git
synced 2025-04-02 10:42:14 -04:00
46a1eb8cce
This is an experimental release, as such it is posted only to Google Code.
Changelog:
- 21fx API moved to pre-finalized form as S-MSU1; more about this on the forum
- OpenGL driver now uses GL_CLAMP_TO_BORDER instead of GL_CLAMP_TO_EDGE to support screen curvature shader
- rewrote file open dialog; code is greatly simplified, interface is improved
- all cheat code columns are now enquoted, and empty codes at the bottom of the file are omitted (format is compatible with previous releases still)
- debugger: added missing DMA variables to S-CPU properties viewer
- snesfilter: added OpenMP (multi-threading) support to HQ2x filter
- lots of other miscellaneous code cleanup work
49 lines
1.2 KiB
C++
49 lines
1.2 KiB
C++
// #included by unpack.cpp
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#ifdef RAR_COMMON_HPP
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inline unsigned int RangeCoder::GetChar()
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{
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return(UnpackRead->GetChar());
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}
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void RangeCoder::InitDecoder(Unpack *UnpackRead)
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{
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RangeCoder::UnpackRead=UnpackRead;
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low=code=0;
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range=uint(-1);
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for (int i=0;i < 4;i++)
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code=(code << 8) | GetChar();
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}
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#define ARI_DEC_NORMALIZE(code,low,range,read) \
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{ \
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while ((low^(low+range))<TOP || range<BOT && ((range=-low&(BOT-1)),1)) \
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{ \
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code=(code << 8) | read->GetChar(); \
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range <<= 8; \
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low <<= 8; \
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} \
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}
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inline int RangeCoder::GetCurrentCount()
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{
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return (code-low)/(range /= SubRange.scale);
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}
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inline uint RangeCoder::GetCurrentShiftCount(uint SHIFT)
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{
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return (code-low)/(range >>= SHIFT);
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}
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inline void RangeCoder::Decode()
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{
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low += range*SubRange.LowCount;
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range *= SubRange.HighCount-SubRange.LowCount;
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}
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#endif
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