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