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fpc/packages/libgd
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tom_at_work 9428c78d63 Pass OPT to compilation of fpmake. 
Solves issues with systems that e.g. require special options for compilation of programs (e.g. libc programs to find libc startup code) or the actual build has been compiled with options that are incompatible with default ones.

Tested changes by building an i386-linux local build and i386-linux->arm-linux cross-builds

git-svn-id: trunk@22397 -
2012-09-15 23:41:44 +00:00
..
examples + Regenerate all Makefiles's after adding x86_64 netbsd target 2012-04-24 23:15:18 +00:00
src fix compilation for netware target 2011-02-06 18:13:00 +00:00
fpmake.pp + added target NativeNT to supported OSes in fpmkunit 2012-05-18 07:17:02 +00:00
Makefile Pass OPT to compilation of fpmake. 2012-09-15 23:41:44 +00:00
Makefile.fpc Pass OPT to compilation of fpmake. 2012-09-15 23:41:44 +00:00
Makefile.fpc.fpcmake * More packages switched to fpmake building 2012-01-03 14:29:12 +00:00
README.txt

README.txt 

This is the interface unit for the gd library, version 1.8.4.
The gd library is a library to produce graphics files (jpeg,png and wbmp)
available from http://www.boutell.com/gd/.

The gd unit is a straight translation of the library headers.
It has some additional calls which make it more pascal like:

{overloaded pascal functions}
function fopen(a,b:string):pFile;
procedure gdImageChar(im:gdImagePtr; f:gdFontPtr; x:longint; y:longint; c:char; color:longint);
procedure gdImageCharUp(im:gdImagePtr; f:gdFontPtr; x:longint; y:longint; c:char; color:longint); 
procedure gdImageString(im:gdImagePtr; f:gdFontPtr; x:longint; y:longint; s:string;  color:longint); 
procedure gdImageStringUp(im:gdImagePtr; f:gdFontPtr; x:longint; y:longint; s:string; color:longint); 
procedure gdImageString16(im:gdImagePtr; f:gdFontPtr; x:longint; y:longint; s:string; color:longint); 
procedure gdImageStringUp16(im:gdImagePtr; f:gdFontPtr; x:longint; y:longint; s:string; color:longint); 
{$ifdef hasttf}
function  gdImageStringTTF(im:PgdImage; brect:Plongint; fg:longint; fontlist:string; ptsize:double; angle:double; x:longint; y:longint; astring:string): string;
function  gdImageStringFT(im:PgdImage; brect:Plongint; fg:longint; fontlist:string; ptsize:double; angle:double; x:longint; y:longint; astring:string):string;
{$endif}

These functions will work with both ansistrings and shortstrings; The unit
can be compiled in both the {$H+} as the {$H-} state.

The hasttf define should be defined for libraries which have TTF2 lib 
support compiled in.

The gdtest example is adapted from the example of the gd unit by Mike Bradbery.
It shows how to use the pascal-like functions in the gd unit instead of the
raw C like functions which use pchars.

usage:
 gdtest chart.png

the gdtestcgi example shows how to output an image to standard output,
this can be used for CGI scripts.

Michael.