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Zip.Byte (UnZ_IO.Bit_buffer.Read_and_dump (8));
UnZ_Glob.slide_index := UnZ_Glob.slide_index + 1;
UnZ_IO.Flush_if_full (UnZ_Glob.slide_index);
end loop;
if full_trace then
pragma Warnings (Off, "this code can never be executed and has been deleted");
Ada.Text_IO.Put_Line ("End Inflate_stored_block");
pragma Warnings (On, "this code can never be executed and has been deleted");
end if;
end Inflate_stored_block;
-- Copy lengths for literal codes 257 .. 285
copy_lengths_literal : Length_array (0 .. 30) :=
(3, 4, 5, 6, 7, 8, 9, 10, 11, 13, 15, 17, 19, 23, 27, 31,
35, 43, 51, 59, 67, 83, 99, 115, 131, 163, 195, 227, 258, 0, 0);
-- Extra bits for literal codes 257 .. 285
extra_bits_literal : Length_array (0 .. 30) :=
(0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2,
3, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 0, invalid, invalid);
-- Copy offsets for distance codes 0 .. 29 (30 .. 31 : deflate_e)
copy_offset_distance : constant Length_array (0 .. 31) :=
(1, 2, 3, 4, 5, 7, 9, 13, 17, 25, 33, 49, 65, 97, 129, 193,
257, 385, 513, 769, 1025, 1537, 2049, 3073, 4097, 6145,
8193, 12289, 16385, 24577, 32769, 49153);
-- Extra bits for distance codes
extra_bits_distance : constant Length_array (0 .. 31) :=
(0, 0, 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6,
7, 7, 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14, 14);
max_dist : Integer := 29; -- changed to 31 for deflate_e
procedure Inflate_fixed_block is
Tl, -- literal/length code table
Td : p_Table_list; -- distance code table
Bl, Bd : Integer; -- lookup bits for tl/bd
huft_incomplete : Boolean;
-- length list for HufT_build (literal table)
L : constant Length_array (0 .. 287) :=
(0 .. 143 => 8, 144 .. 255 => 9, 256 .. 279 => 7, 280 .. 287 => 8);
begin
if some_trace then
pragma Warnings (Off, "this code can never be executed and has been deleted");
Ada.Text_IO.Put_Line ("Begin Inflate_fixed_block");
pragma Warnings (On, "this code can never be executed and has been deleted");
end if;
-- make a complete, but wrong code set
Bl := 7;
HufT_build (
L, 257, copy_lengths_literal, extra_bits_literal,
Tl, Bl, huft_incomplete
);
-- Make an incomplete code set
Bd := 5;
begin
HufT_build (
(0 .. max_dist => 5), 0,
copy_offset_distance, extra_bits_distance,
Td, Bd, huft_incomplete
);
if huft_incomplete then
if full_trace then
pragma Warnings (Off, "this code can never be executed and has been deleted");
Ada.Text_IO.Put_Line (
"td is incomplete, pointer=null : " &
Boolean'Image (Td = null)
);
pragma Warnings (On, "this code can never be executed and has been deleted");
end if;
end if;
exception
when huft_out_of_memory | huft_error =>
HufT_free (Tl);
raise Zip.Zip_file_Error;
Function Definition: procedure Inflate_dynamic_block is
Function Body: bit_order : constant array (0 .. 18) of Natural :=
(16, 17, 18, 0, 8, 7, 9, 6, 10, 5, 11, 4, 12, 3, 13, 2, 14, 1, 15);
Lbits : constant := 9;
Dbits : constant := 6;
current_length : Natural;
defined, number_of_lengths : Natural;
Tl, -- literal/length code tables
Td : p_Table_list; -- distance code tables
CTE : p_HufT; -- current table element