README
1
2README for the builds/amiga subdirectory.
3
4Copyright (C) 2005-2020 by
5Werner Lemberg and Detlef W�rkner.
6
7This file is part of the FreeType project, and may only be used, modified,
8and distributed under the terms of the FreeType project license,
9LICENSE.TXT. By continuing to use, modify, or distribute this file you
10indicate that you have read the license and understand and accept it
11fully.
12
13
14The makefile.os4 is for the AmigaOS4 SDK. To use it, type
15"make -f makefile.os4", it produces a link library libft2_ppc.a.
16
17The makefile is for ppc-morphos-gcc-2.95.3-bin.tgz (gcc 2.95.3 hosted on
1868k-Amiga producing MorphOS-PPC-binaries from http://www.morphos.de).
19To use it, type "make assign", then "make"; it produces a link library
20libft2_ppc.a.
21
22The smakefile is a makefile for Amiga SAS/C 6.58 (no longer available,
23latest sold version was 6.50, updates can be found in Aminet). It is
24based on the version found in the sourcecode of ttf.library 0.83b for
25FreeType 1.3.1 from Richard Griffith (ragriffi@sprynet.com,
26http://ragriffi.home.sprynet.com).
27
28You will also need the latest include files and amiga.lib from the
29Amiga web site (https://os.amigaworld.de/download.php?id=3) for
30AmigaOS 3.9; the generated code should work under AmigaOS 2.04 and up.
31
32To use it, call "smake assign" and then "smake" from the builds/amiga
33directory. The results are:
34
35- A link library "ft2_680x0.lib" (where x depends on the setting of
36 the CPU entry in the smakefile) containing all FreeType2 parts
37 except of the init code, debugging code, and the system interface
38 code.
39
40- ftsystem.o, an object module containing the standard version of the
41 system interface code which uses fopen() fclose() fread() fseek()
42 ftell() malloc() realloc() and free() from lib:sc.lib (not pure).
43
44- ftsystempure.o, an object module containing the pure version of the
45 system interface code which uses Open() Close() Read() Seek()
46 ExamineFH() AsmAllocPooled() AsmFreePooled() etc. This version can
47 be used in both normal programs and in Amiga run-time shared system
48 librarys (can be linked with lib:libinit.o, no copying of DATA and
49 BSS hunks for each OpenLibrary() necessary). Source code is in
50 src/base/ftsystem.c.
51
52- ftdebug.o, an object module containing the standard version of the
53 debugging code which uses vprintf() and exit() (not pure).
54 Debugging can be turned on in FT:include/freetype/config/ftoption.h
55 and with FT_SetTraceLevel().
56
57- ftdebugpure.o, an object module containing the pure version of the
58 debugging code which uses KVPrintf() from lib:debug.lib and no
59 exit(). For debugging of Amiga run-time shared system libraries.
60 Source code is in src/base/ftdebug.c.
61
62- NO ftinit.o. Because linking with a link library should result in
63 linking only the needed object modules in it, but standard
64 ftsystem.o would force ALL FreeType2 modules to be linked to your
65 program, I decided to use a different scheme: You must #include
66 FT:src/base/ftinit.c in your sourcecode and specify with #define
67 statements which modules you need. See
68 include/freetype/config/ftmodule.h.
69
70
71To use in your own programs:
72
73- Insert the #define and #include statements from top of
74 include/freetype/config/ftmodule.h in your source code and
75 uncomment the #define statements for the FreeType2 modules you need.
76
77- You can use either PARAMETERS=REGISTER or PARAMETERS=STACK for
78 calling the FreeType2 functions, because the link library and the
79 object files are compiled with PARAMETERS=BOTH.
80
81- "smake assign" (assign "FT:" to the FreeType2 main directory).
82
83- Compile your program.
84
85- Link with either ftsystem.o or ftsystempure.o, if debugging enabled
86 with either ftdebug.o or (ftdebugpure.o and lib:debug.lib), and with
87 ft2_680x0.lib as link library.
88
89
90To adapt to other compilers:
91
92- The standard ANSI C maximum length of 31 significant characters in
93 identifiers is not enough for FreeType2. Check if your compiler has
94 a minimum length of 40 significant characters or can be switched to
95 it. "idlen=40" is the option for SAS/C. Setting #define
96 HAVE_LIMIT_ON_IDENTS in an include file may also work (not tested).
97
98- Make sure that the include directory in builds/amiga is searched
99 before the normal FreeType2 include directory, so you are able to
100 replace problematic include files with your own version (same may be
101 useful for the src directory).
102
103- An example of how to replace/workaround a problematic include file
104 is include/freetype/config/ftconfig.h; it changes a #define that
105 would prevent SAS/C from generating XDEF's where it should do that and
106 then includes the standard FreeType2 include file.
107
108Local Variables:
109coding: latin-1
110End:
111