misc/libfreetype/docs/PROBLEMS
author nemo
Sun, 03 Jun 2012 23:04:21 -0400
changeset 7174 80480d21e6ed
parent 5172 88f2e05288ba
permissions -rw-r--r--
Workaround for bug #144. This workaround had occurred to me a while ago, but wasn't sure if placing them unfairly was better than not placing them at all. Argument for not placing at all is people should probably abort the game when they notice it. Argument for placing unfairly is people can still abort, and if we really wanted them to abort, we should probably just have halted launch if all hogs failed to spawn. This way at least play can continue.
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This  file describes various  problems that  have been  encountered in
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compiling,  installing  and   running  FreeType  2.   Suggestions  for
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additions or other improvements to this file are welcome.
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Running Problems
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================
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* Some Type 1, Multiple Masters, and CID-keyed PostScript fonts aren't
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  handled correctly.
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-----
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Of course,  there might be  bugs in FreeType,  but some fonts based on
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the  PostScript  format can't  be handled indeed.  The reason  is that
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FreeType  doesn't contain a full  PostScript  interpreter  but applies
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pattern matching instead.  In case a font doesn't follow the  standard
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structure of the given font format, FreeType fails.  A typical example
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is Adobe's `Optima'  font family which  contains extra code  to switch
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between low and high resolution versions of the glyphs.
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It might be  possible to patch  FreeType in  some situations,  though.
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Please report failing fonts so that we investigate the problem and set
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up a list of such problematic fonts.
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* Why do identical FreeType  versions render differently  on different
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  platforms?
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Different distributions compile FreeType with different options.   The
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developer  version of  a  distribution's  FreeType  package,  which is
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needed to compile  your program  against FreeType,  includes the  file
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ftoption.h.  Compare  each platform's  copy of ftoption.h to  find the
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differences.
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Compilation Problems
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====================
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* I get an `internal compilation error' (ICE) while compiling FreeType
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  2.2.1 with Intel C++.
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  This has been reported for the following compiler version:
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    Intel(R) C++ Compiler for 32-bit applications,
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      Version 9.0 Build 20050430Z Package ID: W_CC_P_9.0.019
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-----
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The best solution is to update the compiler to version
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  Intel(R) C++ Compiler for 32-bit applications,
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    Version 9.1 Build 20060323Z Package ID: W_CC_P_9.1.022
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or newer.  If this isn't feasible, apply the following patch.
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--- src/cache/ftcbasic.c 20 Mar 2006 12:10:24 -0000 1.20
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+++ src/cache/ftcbasic.c.patched 15 May 2006 02:51:02 -0000
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@@ -252,7 +252,7 @@
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   */
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   FT_CALLBACK_TABLE_DEF
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-  const FTC_IFamilyClassRec  ftc_basic_image_family_class =
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+  FTC_IFamilyClassRec  ftc_basic_image_family_class =
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   {
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     {
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       sizeof ( FTC_BasicFamilyRec ),
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@@ -266,7 +266,7 @@
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   FT_CALLBACK_TABLE_DEF
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-  const FTC_GCacheClassRec  ftc_basic_image_cache_class =
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+  FTC_GCacheClassRec  ftc_basic_image_cache_class =
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   {
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     {
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       ftc_inode_new,
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--- end of PROBLEMS ---