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author | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
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committer | marha <marha@users.sourceforge.net> | 2009-06-28 22:07:26 +0000 |
commit | 3562e78743202e43aec8727005182a2558117eca (patch) | |
tree | 8f9113a77d12470c5c851a2a8e4cb02e89df7d43 /zlib/contrib/ada/zlib-streams.ads | |
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Checked in the following released items:
xkeyboard-config-1.4.tar.gz
ttf-bitstream-vera-1.10.tar.gz
font-alias-1.0.1.tar.gz
font-sun-misc-1.0.0.tar.gz
font-sun-misc-1.0.0.tar.gz
font-sony-misc-1.0.0.tar.gz
font-schumacher-misc-1.0.0.tar.gz
font-mutt-misc-1.0.0.tar.gz
font-misc-misc-1.0.0.tar.gz
font-misc-meltho-1.0.0.tar.gz
font-micro-misc-1.0.0.tar.gz
font-jis-misc-1.0.0.tar.gz
font-isas-misc-1.0.0.tar.gz
font-dec-misc-1.0.0.tar.gz
font-daewoo-misc-1.0.0.tar.gz
font-cursor-misc-1.0.0.tar.gz
font-arabic-misc-1.0.0.tar.gz
font-winitzki-cyrillic-1.0.0.tar.gz
font-misc-cyrillic-1.0.0.tar.gz
font-cronyx-cyrillic-1.0.0.tar.gz
font-screen-cyrillic-1.0.1.tar.gz
font-xfree86-type1-1.0.1.tar.gz
font-adobe-utopia-type1-1.0.1.tar.gz
font-ibm-type1-1.0.0.tar.gz
font-bitstream-type1-1.0.0.tar.gz
font-bitstream-speedo-1.0.0.tar.gz
font-bh-ttf-1.0.0.tar.gz
font-bh-type1-1.0.0.tar.gz
font-bitstream-100dpi-1.0.0.tar.gz
font-bh-lucidatypewriter-100dpi-1.0.0.tar.gz
font-bh-100dpi-1.0.0.tar.gz
font-adobe-utopia-100dpi-1.0.1.tar.gz
font-adobe-100dpi-1.0.0.tar.gz
font-util-1.0.1.tar.gz
font-bitstream-75dpi-1.0.0.tar.gz
font-bh-lucidatypewriter-75dpi-1.0.0.tar.gz
font-adobe-utopia-75dpi-1.0.1.tar.gz
font-bh-75dpi-1.0.0.tar.gz
bdftopcf-1.0.1.tar.gz
font-adobe-75dpi-1.0.0.tar.gz
mkfontscale-1.0.6.tar.gz
openssl-0.9.8k.tar.gz
bigreqsproto-1.0.2.tar.gz
xtrans-1.2.2.tar.gz
resourceproto-1.0.2.tar.gz
inputproto-1.4.4.tar.gz
compositeproto-0.4.tar.gz
damageproto-1.1.0.tar.gz
zlib-1.2.3.tar.gz
xkbcomp-1.0.5.tar.gz
freetype-2.3.9.tar.gz
pthreads-w32-2-8-0-release.tar.gz
pixman-0.12.0.tar.gz
kbproto-1.0.3.tar.gz
evieext-1.0.2.tar.gz
fixesproto-4.0.tar.gz
recordproto-1.13.2.tar.gz
randrproto-1.2.2.tar.gz
scrnsaverproto-1.1.0.tar.gz
renderproto-0.9.3.tar.gz
xcmiscproto-1.1.2.tar.gz
fontsproto-2.0.2.tar.gz
xextproto-7.0.3.tar.gz
xproto-7.0.14.tar.gz
libXdmcp-1.0.2.tar.gz
libxkbfile-1.0.5.tar.gz
libfontenc-1.0.4.tar.gz
libXfont-1.3.4.tar.gz
libX11-1.1.5.tar.gz
libXau-1.0.4.tar.gz
libxcb-1.1.tar.gz
xorg-server-1.5.3.tar.gz
Diffstat (limited to 'zlib/contrib/ada/zlib-streams.ads')
-rw-r--r-- | zlib/contrib/ada/zlib-streams.ads | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/zlib/contrib/ada/zlib-streams.ads b/zlib/contrib/ada/zlib-streams.ads new file mode 100644 index 000000000..f0193c6ba --- /dev/null +++ b/zlib/contrib/ada/zlib-streams.ads @@ -0,0 +1,114 @@ +---------------------------------------------------------------- +-- ZLib for Ada thick binding. -- +-- -- +-- Copyright (C) 2002-2003 Dmitriy Anisimkov -- +-- -- +-- Open source license information is in the zlib.ads file. -- +---------------------------------------------------------------- + +-- $Id: zlib-streams.ads,v 1.12 2004/05/31 10:53:40 vagul Exp $ + +package ZLib.Streams is + + type Stream_Mode is (In_Stream, Out_Stream, Duplex); + + type Stream_Access is access all Ada.Streams.Root_Stream_Type'Class; + + type Stream_Type is + new Ada.Streams.Root_Stream_Type with private; + + procedure Read + (Stream : in out Stream_Type; + Item : out Ada.Streams.Stream_Element_Array; + Last : out Ada.Streams.Stream_Element_Offset); + + procedure Write + (Stream : in out Stream_Type; + Item : in Ada.Streams.Stream_Element_Array); + + procedure Flush + (Stream : in out Stream_Type; + Mode : in Flush_Mode := Sync_Flush); + -- Flush the written data to the back stream, + -- all data placed to the compressor is flushing to the Back stream. + -- Should not be used untill necessary, becouse it is decreasing + -- compression. + + function Read_Total_In (Stream : in Stream_Type) return Count; + pragma Inline (Read_Total_In); + -- Return total number of bytes read from back stream so far. + + function Read_Total_Out (Stream : in Stream_Type) return Count; + pragma Inline (Read_Total_Out); + -- Return total number of bytes read so far. + + function Write_Total_In (Stream : in Stream_Type) return Count; + pragma Inline (Write_Total_In); + -- Return total number of bytes written so far. + + function Write_Total_Out (Stream : in Stream_Type) return Count; + pragma Inline (Write_Total_Out); + -- Return total number of bytes written to the back stream. + + procedure Create + (Stream : out Stream_Type; + Mode : in Stream_Mode; + Back : in Stream_Access; + Back_Compressed : in Boolean; + Level : in Compression_Level := Default_Compression; + Strategy : in Strategy_Type := Default_Strategy; + Header : in Header_Type := Default; + Read_Buffer_Size : in Ada.Streams.Stream_Element_Offset + := Default_Buffer_Size; + Write_Buffer_Size : in Ada.Streams.Stream_Element_Offset + := Default_Buffer_Size); + -- Create the Comression/Decompression stream. + -- If mode is In_Stream then Write operation is disabled. + -- If mode is Out_Stream then Read operation is disabled. + + -- If Back_Compressed is true then + -- Data written to the Stream is compressing to the Back stream + -- and data read from the Stream is decompressed data from the Back stream. + + -- If Back_Compressed is false then + -- Data written to the Stream is decompressing to the Back stream + -- and data read from the Stream is compressed data from the Back stream. + + -- !!! When the Need_Header is False ZLib-Ada is using undocumented + -- ZLib 1.1.4 functionality to do not create/wait for ZLib headers. + + function Is_Open (Stream : Stream_Type) return Boolean; + + procedure Close (Stream : in out Stream_Type); + +private + + use Ada.Streams; + + type Buffer_Access is access all Stream_Element_Array; + + type Stream_Type + is new Root_Stream_Type with + record + Mode : Stream_Mode; + + Buffer : Buffer_Access; + Rest_First : Stream_Element_Offset; + Rest_Last : Stream_Element_Offset; + -- Buffer for Read operation. + -- We need to have this buffer in the record + -- becouse not all read data from back stream + -- could be processed during the read operation. + + Buffer_Size : Stream_Element_Offset; + -- Buffer size for write operation. + -- We do not need to have this buffer + -- in the record becouse all data could be + -- processed in the write operation. + + Back : Stream_Access; + Reader : Filter_Type; + Writer : Filter_Type; + end record; + +end ZLib.Streams; |