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Diffstat (limited to 'fitz/filt_faxd.h')
| -rw-r--r-- | fitz/filt_faxd.h | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/fitz/filt_faxd.h b/fitz/filt_faxd.h deleted file mode 100644 index 9f3fb470..00000000 --- a/fitz/filt_faxd.h +++ /dev/null @@ -1,61 +0,0 @@ -/* Fax G3/G4 tables */ - -/* -<raph> the first 2^(initialbits) entries map bit patterns to decodes -<raph> let's say initial_bits is 8 for the sake of example -<raph> and that the code is 1001 -<raph> that means that entries 0x90 .. 0x9f have the entry { val, 4 } -<raph> because those are all the bytes that start with the code -<raph> and the 4 is the length of the code -... if (n_bits > initial_bits) ... -<raph> anyway, in that case, it basically points to a mini table -<raph> the n_bits is the maximum length of all codes beginning with that byte -<raph> so 2^(n_bits - initial_bits) is the size of the mini-table -<raph> peter came up with this, and it makes sense -*/ - -typedef struct cfd_node_s cfd_node; - -struct cfd_node_s -{ - short val; - short nbits; -}; - -enum -{ - cfd_white_initial_bits = 8, - cfd_black_initial_bits = 7, - cfd_2d_initial_bits = 7, - cfd_uncompressed_initial_bits = 6 /* must be 6 */ -}; - -/* non-run codes in tables */ -enum -{ - ERROR = -1, - ZEROS = -2, /* EOL follows, possibly with more padding first */ - UNCOMPRESSED = -3 -}; - -/* semantic codes for cf_2d_decode */ -enum -{ - P = -4, - H = -5, - VR3 = 0, - VR2 = 1, - VR1 = 2, - V0 = 3, - VL1 = 4, - VL2 = 5, - VL3 = 6 -}; - -/* Decoding tables */ - -extern const cfd_node cf_white_decode[]; -extern const cfd_node cf_black_decode[]; -extern const cfd_node cf_2d_decode[]; -extern const cfd_node cf_uncompressed_decode[]; - |