Externals/enet/compress.c

59 enet_range_coder_destroy (void * context)  in enet_range_coder_destroy()  argument
61     ENetRangeCoder * rangeCoder = (ENetRangeCoder *) context;  in enet_range_coder_destroy()
68 #define ENET_SYMBOL_CREATE(symbol, value_, count_) \  argument
70     symbol = & rangeCoder -> symbols [nextSymbol ++]; \
71     symbol -> value = value_; \
72     symbol -> count = count_; \
73     symbol -> under = count_; \
74     symbol -> left = 0; \
75     symbol -> right = 0; \
76     symbol -> symbols = 0; \
77     symbol -> escapes = 0; \
78     symbol -> total = 0; \
79     symbol -> parent = 0; \
82 #define ENET_CONTEXT_CREATE(context, escapes_, minimum) \  argument
84     ENET_SYMBOL_CREATE (context, 0, 0); \
85     (context) -> escapes = escapes_; \
86     (context) -> total = escapes_ + 256*minimum; \
87     (context) -> symbols = 0; \
91 enet_symbol_rescale (ENetSymbol * symbol)  in enet_symbol_rescale()  argument
96         symbol -> count -= symbol->count >> 1;  in enet_symbol_rescale()
97         symbol -> under = symbol -> count;  in enet_symbol_rescale()
98         if (symbol -> left)  in enet_symbol_rescale()
99           symbol -> under += enet_symbol_rescale (symbol + symbol -> left);  in enet_symbol_rescale()
100         total += symbol -> under;  in enet_symbol_rescale()
101         if (! symbol -> right) break;  in enet_symbol_rescale()
102         symbol += symbol -> right;  in enet_symbol_rescale()
107 #define ENET_CONTEXT_RESCALE(context, minimum) \  argument
109 …(context) -> total = (context) -> symbols ? enet_symbol_rescale ((context) + (context) -> symbols)…
110     (context) -> escapes -= (context) -> escapes >> 1; \
111     (context) -> total += (context) -> escapes + 256*minimum; \
159 #define ENET_CONTEXT_ENCODE(context, symbol_, value_, under_, count_, update, minimum) \  argument
163     if (! (context) -> symbols) \
166         (context) -> symbols = symbol_ - (context); \
170         ENetSymbol * node = (context) + (context) -> symbols; \
204 #define ENET_CONTEXT_WALK(context, body) \  argument
206     const ENetSymbol * node = (context) + (context) -> symbols; \
234 #define ENET_CONTEXT_ENCODE_EXCLUDE(context, value_, under, total, minimum) \  argument
235 ENET_CONTEXT_WALK(context, { \
247 enet_range_coder_compress (void * context, const ENetBuffer * inBuffers, size_t inBufferCount, size…  in enet_range_coder_compress()  argument
249     ENetRangeCoder * rangeCoder = (ENetRangeCoder *) context;  in enet_range_coder_compress()
269         ENetSymbol * subcontext, * symbol;  in enet_range_coder_compress()  local
293 …    ENET_CONTEXT_ENCODE (subcontext, symbol, value, under, count, ENET_SUBCONTEXT_SYMBOL_DELTA, 0);  in enet_range_coder_compress()
294             * parent = symbol - rangeCoder -> symbols;  in enet_range_coder_compress()
295             parent = & symbol -> parent;  in enet_range_coder_compress()
318 …ENET_CONTEXT_ENCODE (root, symbol, value, under, count, ENET_CONTEXT_SYMBOL_DELTA, ENET_CONTEXT_SY…  in enet_range_coder_compress()
319         * parent = symbol - rangeCoder -> symbols;  in enet_range_coder_compress()
320         parent = & symbol -> parent;  in enet_range_coder_compress()
373 #define ENET_CONTEXT_DECODE(context, symbol_, code, value_, under_, count_, update, minimum, create…  argument
377     if (! (context) -> symbols) \
383         ENetSymbol * node = (context) + (context) -> symbols; \
415 #define ENET_CONTEXT_TRY_DECODE(context, symbol_, code, value_, under_, count_, update, minimum, ex…  argument
416 ENET_CONTEXT_DECODE (context, symbol_, code, value_, under_, count_, update, minimum, return 0, exc…
418 #define ENET_CONTEXT_ROOT_DECODE(context, symbol_, code, value_, under_, count_, update, minimum, e…  argument
419 ENET_CONTEXT_DECODE (context, symbol_, code, value_, under_, count_, update, minimum, \
424         (context) -> symbols = symbol_ - (context); \
447 #define ENET_CONTEXT_DECODE_EXCLUDE(context, total, minimum) \  argument
451     ENET_CONTEXT_WALK (context, { \
499 enet_range_coder_decompress (void * context, const enet_uint8 * inData, size_t inLimit, enet_uint8 …  in enet_range_coder_decompress()  argument
501     ENetRangeCoder * rangeCoder = (ENetRangeCoder *) context;  in enet_range_coder_decompress()
522         ENetSymbol * subcontext, * symbol, * patch;  in enet_range_coder_decompress()  local
555 …ENET_CONTEXT_TRY_DECODE (subcontext, symbol, code, value, under, count, ENET_SUBCONTEXT_SYMBOL_DEL…  in enet_range_coder_decompress()
560 …ENET_CONTEXT_TRY_DECODE (subcontext, symbol, code, value, under, count, ENET_SUBCONTEXT_SYMBOL_DEL…  in enet_range_coder_decompress()
562             bottom = symbol - rangeCoder -> symbols;  in enet_range_coder_decompress()
585 …ENET_CONTEXT_ROOT_DECODE (root, symbol, code, value, under, count, ENET_CONTEXT_SYMBOL_DELTA, ENET…  in enet_range_coder_decompress()
590 …ENET_CONTEXT_ROOT_DECODE (root, symbol, code, value, under, count, ENET_CONTEXT_SYMBOL_DELTA, ENET…  in enet_range_coder_decompress()
592         bottom = symbol - rangeCoder -> symbols;  in enet_range_coder_decompress()
603 …         ENET_CONTEXT_ENCODE (patch, symbol, value, under, count, ENET_SUBCONTEXT_SYMBOL_DELTA, 0);  in enet_range_coder_decompress()
604             * parent = symbol - rangeCoder -> symbols;  in enet_range_coder_decompress()
605             parent = & symbol -> parent;  in enet_range_coder_decompress()
642     compressor.context = enet_range_coder_create();  in enet_host_compress_with_range_coder()
643     if (compressor.context == NULL)  in enet_host_compress_with_range_coder()