forked from minhngoc25a/freetype2
91 lines
2.7 KiB
Plaintext
91 lines
2.7 KiB
Plaintext
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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-----
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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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----------------------------------------------------------------------
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--- end of PROBLEMS ---
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