41 lines
941 B
C
41 lines
941 B
C
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// infmacro.h
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#define INPUT_EOF() (context->input_curpos >= context->end_input_buffer)
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// dump n bits from the bit buffer (n can be up to 16)
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// in assertion: there must be at least n valid bits in the buffer
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#define DUMPBITS(n) \
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bitbuf >>= n; \
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bitcount -= n;
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// return the next n bits in the bit buffer (n <= 16), then dump these bits
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// in assertion: there must be at least n valid bits in the buffer
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#define GETBITS(result, n) \
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bitcount -= n; \
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result = (bitbuf & g_BitMask[n]); \
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bitbuf >>= n; \
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// Load bit buffer variables from context into local variables
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#define LOAD_BITBUF_VARS() \
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bitbuf = context->bitbuf; \
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bitcount = context->bitcount; \
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input_ptr = context->input_curpos;
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// Save bit buffer variables from local variables into context
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#define SAVE_BITBUF_VARS() \
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context->bitbuf = bitbuf; \
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context->bitcount = bitcount; \
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context->input_curpos = input_ptr;
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