Meep-Eep
325a882c5d
git-svn-id: svn://svn.code.sf.net/p/sc2/code/trunk@2767 8092fc87-c524-0410-9efc-e669fe64eaf9
45 lines
875 B
C
45 lines
875 B
C
// Reverse engineered from the Star Control executable.
|
|
|
|
#ifndef _HUFF_H
|
|
#define _HUFF_H
|
|
|
|
typedef struct Huff_Code Huff_Code;
|
|
typedef struct Huff_Context Huff_Context;
|
|
|
|
#include "dostypes.h"
|
|
#include "../../shared/cbytesex.h"
|
|
|
|
|
|
struct Huff_Code {
|
|
WORD field_0;
|
|
BYTE value;
|
|
BYTE len;
|
|
};
|
|
|
|
struct Huff_Context {
|
|
Huff_Code codes[0x100];
|
|
WORD codeCount;
|
|
WORD maxCodeLen;
|
|
bool (*lookupCodeFunc)(Huff_Context *ctx, DWORD *result);
|
|
|
|
BitStreamContext *bsc;
|
|
|
|
union {
|
|
BYTE topCodeIndexLen;
|
|
// Number of bits in the index of the top code.
|
|
BYTE codeIndices[16];
|
|
// Index into 'codes' to the first code with some length.
|
|
} u;
|
|
};
|
|
|
|
Huff_Context *Huff_new(BitStreamContext *bsc, WORD codeCount);
|
|
void Huff_delete(Huff_Context *ctx);
|
|
|
|
static inline bool
|
|
Huff_getCode(Huff_Context *ctx, DWORD *result) {
|
|
return ctx->lookupCodeFunc(ctx, result);
|
|
}
|
|
|
|
#endif /* _HUFF_H */
|
|
|