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jchuffvr.h
Package: shell.rar [view]
Upload User: xhy777
Upload Date: 2007-02-14
Package Size: 24088k
Code Size: 3k
Category:
Windows Kernel
Development Platform:
Visual C++
- typedef struct {
- __int64 put_buffer_64; //mmx bit-accumulation buffer
- INT32 put_buffer; /* current bit-accumulation buffer */
- int put_bits; /* # of bits now in it */
- int last_dc_val[MAX_COMPS_IN_SCAN]; /* last DC coef for each component */
- } savable_state;
- /* This macro is to work around compilers with missing or broken
- * structure assignment. You'll need to fix this code if you have
- * such a compiler and you change MAX_COMPS_IN_SCAN.
- */
- //#ifndef NO_STRUCT_ASSIGN
- //#define ASSIGN_STATE(dest,src) ((dest) = (src))
- //#else
- // pull out the assignments to put_buffer and put_bits since they are implentation dependent
- #if MAX_COMPS_IN_SCAN == 4
- #define ASSIGN_STATE(dest,src)
- ((dest).last_dc_val[0] = (src).last_dc_val[0],
- (dest).last_dc_val[1] = (src).last_dc_val[1],
- (dest).last_dc_val[2] = (src).last_dc_val[2],
- (dest).last_dc_val[3] = (src).last_dc_val[3])
- /*((dest).put_buffer = (src).put_buffer,
- (dest).put_bits = (src).put_bits, */
- #endif
- //#endif
- typedef struct {
- struct jpeg_entropy_encoder pub; /* public fields */
- savable_state saved; /* Bit buffer & DC state at start of MCU */
- /* These fields are NOT loaded into local working state. */
- unsigned int restarts_to_go; /* MCUs left in this restart interval */
- int next_restart_num; /* next restart number to write (0-7) */
- /* Pointers to derived tables (these workspaces have image lifespan) */
- c_derived_tbl * dc_derived_tbls[NUM_HUFF_TBLS];
- c_derived_tbl * ac_derived_tbls[NUM_HUFF_TBLS];
- #ifdef ENTROPY_OPT_SUPPORTED /* Statistics tables for optimization */
- long * dc_count_ptrs[NUM_HUFF_TBLS];
- long * ac_count_ptrs[NUM_HUFF_TBLS];
- #endif
- } huff_entropy_encoder;
- typedef huff_entropy_encoder * huff_entropy_ptr;
- /* Working state while writing an MCU.
- * This struct contains all the fields that are needed by subroutines.
- */
- typedef struct {
- // make the next two variables global for easy access in mmx version
- // JOCTET * next_output_byte; /* => next byte to write in buffer */
- // size_t free_in_buffer; /* # of byte spaces remaining in buffer */
- // savable_state cur; /* Current bit buffer & DC state */
- // flatten (instantiate) savable state here
- __int64 put_buffer_64; // mmx bit accumulation buffer
- INT32 put_buffer; /* current bit-accumulation buffer */
- int put_bits; /* # of bits now in it */
- int last_dc_val[MAX_COMPS_IN_SCAN]; /* last DC coef for each component */
- j_compress_ptr cinfo; /* dump_buffer needs access to this */
- } working_state;
- //global vaiables
- __int64 put_buffer_64;
- // INT32 put_buffer;
- int put_bits;
- JOCTET * next_output_byte; /* => next byte to write in buffer */
- size_t free_in_buffer; /* # of byte spaces remaining in buffer */
- //boolean mmx_cpu=1;