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bug#10399: [PATCH] Document win32 font backends
From: |
Daniel Colascione |
Subject: |
bug#10399: [PATCH] Document win32 font backends |
Date: |
Sat, 31 Dec 2011 03:04:42 -0800 |
User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:8.0) Gecko/20111105 Thunderbird/8.0 |
On 12/31/11 2:56 AM, Eli Zaretskii wrote:
>> Date: Thu, 29 Dec 2011 09:16:16 -0800
>> From: Daniel Colascione <dancol@dancol.org>
>> CC: Juanma Barranquero <lekktu@gmail.com>, 10399@debbugs.gnu.org
>>
>> Since we're on the subject of Windows font backends: is it worth
>> creating a DirectWrite backend? It does a better job of inter-character
>> spacing and rendering at small sizes than Uniscribe does.
>>
>> https://bugzilla.mozilla.org/show_bug.cgi?id=517642
>>
>> https://blog.mozilla.com/nattokirai/2009/10/22/better-postscript-cff-font-rendering-with-directwrite/
>
> Looks like it has only C++ bindings? One of the comments on MSDN
> says:
>
> DirectDraw header file is not compatible with C programming language
> and can only be included in C++ code. However, C-style redeclaration
> of contents in this header file alone (excluding other header files it
> includes), will succeed in resolving the issue.
DirectWrite is COM, and all COM facilities can be used by plain C.
The C compatibility issue arises from a problem with the header for
the COM interface produced by the IDL compiler (probably, nobody tried
to actually use DirectWrite from C before shipping.) This problem
doesn't prevent our using DirectWrite from C: as the MSDN comment
indicates, the declarations just need to be extracted and rephrased as
standard C.
> Also, I see no dwrite.h header in the MinGW runtime and w32api
> distributions, and no lib*.a import libraries for dwrite.dll. Am I
> missing something?
No. Either these packages would need to be updated to include
DirectWrite or we'd need to just include declarations for the
appropriate functions and interfaces ourselves.
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- bug#10399: [PATCH] Document win32 font backends, Daniel Colascione, 2011/12/29
- bug#10399: [PATCH] Document win32 font backends, Juanma Barranquero, 2011/12/29
- bug#10399: [PATCH] Document win32 font backends, Eli Zaretskii, 2011/12/29
- bug#10399: [PATCH] Document win32 font backends, Daniel Colascione, 2011/12/29
- bug#10399: [PATCH] Document win32 font backends, Eli Zaretskii, 2011/12/31
- bug#10399: [PATCH] Document win32 font backends,
Daniel Colascione <=
- bug#10399: [PATCH] Document win32 font backends, Eli Zaretskii, 2011/12/31
- bug#10399: [PATCH] Document win32 font backends, Daniel Colascione, 2011/12/31
- bug#10399: [PATCH] Document win32 font backends, Eli Zaretskii, 2011/12/31
- bug#10399: [PATCH] Document win32 font backends, Óscar Fuentes, 2011/12/31