July 2001 - Wine-devel - list.winehq.org

fnt2bdf.c and font names
by Bill Medland 16 Jul '01

16 Jul '01

I've just been playing with fonts (sserife and vgasys) to get things working. In the process I notice that fnt2bdf seems to do some strange stuff about choosing a font name, pixel size etc. I don't want to submit a patch that merely demonstrates my stupidity/lack of understanding but am willing to put in my suggested fix. This will result in for example the MS Sans Serif 8 pt font getting a name of -windows-MS Sans Serif-medium-r-normal-sans-13-80-96-96-p-50-microsoft-cp1252 SIZE 8 96 96 as opposed to the current -windows-MS Sans Serif-medium-r-normal-sans-13-130-72-72-p-50-microsoft-cp1252 SIZE 13 96 96 (I don't understand why the 72 dpi is hard-coded) Do I submit it or am I misunderstanding something Bill

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Re: Added sanity check to WINPROC_CallWndProc
by Uwe Bonnes 16 Jul '01

16 Jul '01

>>>>> "Jukka" == Jukka Heinonen <jhei(a)iki.fi> writes: Jukka> DeusEx causes Wine to crash (segmentation fault) because it calls Jukka> CallWindowProc and passes null in HWND parameter. While I Jukka> suspect that this is because some Wine function that should Jukka> return a valid HWND is returning a null pointer, the crashing can Jukka> be fixed simply by adding a sanity check to WINPROC_CallWndProc. How does Windows behave on those invalid arguments? Jukka> After this patch, both DeusEx installer and DeusEx dialog for Jukka> choosing rendering engine work. However, DeusEx still crashes Jukka> later because DeusEx for some reason generates a division by zero Jukka> FP exception. DeusEx handler for this exception calls Jukka> __CxxFrameHandler which is not implemented by Wine and thus Jukka> exception handling ends into infinite recursion. Luckily stack Jukka> overflow makes Wine to crash :) Native msvcrt has __CxxFrameHandler, but I aggree that wine-msvcrt needs exception facilities too. Bye -- Uwe Bonnes bon(a)elektron.ikp.physik.tu-darmstadt.de Institut fuer Kernphysik Schlossgartenstrasse 9 64289 Darmstadt --------- Tel. 06151 162516 -------- Fax. 06151 164321 ----------

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Re: Mouse trouble
by Brandon Kilgore 16 Jul '01

16 Jul '01

At 12:34 PM 7/16/01 +0200, Ove Kaaven wrote: >On Sun, 15 Jul 2001, Daniel Bingham wrote: > > > I just got the latest CVS and when I tried to run starcraft my mouse > > won't move. I have dxgrab turned on so as not to have my mouse going > > off the screen when I try to move. I am not very knowledgeable about > > wine or programming, so I thought I'd tell someone who was. > >Known bug in the current CVS. Turn dxgrab off. If it's on, mouse events >are lost. I'm working on it, but have not yet thought of a way to fix it; >I need to run a procedure (GrabPointer) in the context of the thread that >owns the window that gets the grab. My latest idea was to queue an APC to >the owner of the window, but QueueUserAPC requires a thread handle, while >GetWindowThreadProcessId only returns a thread ID. > >Does anyone else on wine-devel have any other ideas? Is there any way you could create a linked list of thread IDs and Handles as they are created so they can be queried at a later point? I don't know how feasible this is. There's no way defined in the Win32 libraries to go from a thread ID to a handle. Microsoft suggests asking the thread to DuplicateHandle(). Also, if you're running this procedure in the context of the thread that owns the window, shouldn't you have access to it's handle? This is the excerpt I found from Microsoft: --------------------------------------------------- The CreateThread() API is used to create threads. The API returns both a thread handle and a thread identifier (ID). The thread handle has full access rights to the thread object created. The thread ID uniquely identifies the thread on the system level while the thread is running. The ID can be recycled after the thread has been terminated. This relationship is similar to that of the process handle and the process ID (PID). There is no way to get the thread handle from the thread ID. While there is an OpenProcess() API that takes a PID and returns the handle to the process, there is no corresponding OpenThread() that takes a thread ID and returns a thread handle. The reason that the Win32 API does not make thread handles available this way is that it can cause damage to an application. The APIs that take a thread handle allow suspending/resuming threads, adjusting priority of a thread relative to its process, reading/writing registers, limiting a thread to a set of processors, terminating a thread, and so forth. Performing any one of these operations on a thread without the knowledge of the owning process is dangerous, and may cause the process to fail. If you will need a thread handle, then you need to request it from the thread creator or the thread itself. Both the creator or the thread will have a handle to the thread and can give it to you using DuplicateHandle(). This requirement allows both applications to coordinate their actions. ---------------------------------------------------

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Re: Added sanity check to WINPROC_CallWndProc
by Jon Griffiths 16 Jul '01

16 Jul '01

Hi, >Native msvcrt has __CxxFrameHandler, but I aggree that wine-msvcrt needs >exception facilities too. While I'm still on holiday, i just bought a laptop to do some wine coding on. I had improved the exception handling in builtin msvcrt but my last run of patches to it werent accepted due to using asm instead of register funcs. Once I get my old sources mailed to me I will begin hacking on it again. I'm interested in getting the konqueror/ActiveX stuff working with builtin msvcrt, since the dot.kde.org press release singled it out as non-functional (much to my shame <g>). Meanwhile I'm strolling through shlwapi and should have some patches for that soon. Its great to see the progress made since february though, very impressive. Cheers, Jon ===== "Don't wait for the seas to part, or messiahs to come; Don't you sit around and waste this chance..." - Live jon_p_griffiths(a)yahoo.com __________________________________________________ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail http://personal.mail.yahoo.com/

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Mouse trouble
by Daniel Bingham 16 Jul '01

16 Jul '01

Hi, I just got the latest CVS and when I tried to run starcraft my mouse won't move. I have dxgrab turned on so as not to have my mouse going off the screen when I try to move. I am not very knowledgeable about wine or programming, so I thought I'd tell someone who was. If I have something set up wrong I can't find it and don't find any documentation to address it either. Any help would be much appreciated. Please email me directly because I get the digest and tend to ignore it. Thanks. Daniel Bingham db78(a)att.net

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Significant change to WINEPS - please test!
by Ian Pilcher 15 Jul '01

15 Jul '01

The attached patch makes a fundamental change to the way the PostScript driver deals with character encodings -- it ignores them. Instead, the driver now operates directly on 16-bit Unicode characters. This should be a more robust strategy for handling non-Latin, and especially multi-byte, character sets. I really have no idea, however, how the rest of Wine handles non-Latin characters. As an English speaker, I'm not well equipped to test it. So please give me your feedback. I particularly want to know if it breaks anything before I submit it. Thanks! -- ======================================================================== Ian Pilcher ian.pilcher(a)home.com ======================================================================== diff -urN ../wine-20010714cvs/dlls/wineps/font.c ./dlls/wineps/font.c --- ../wine-20010714cvs/dlls/wineps/font.c Sun Jul 15 16:07:36 2001 +++ ./dlls/wineps/font.c Sun Jul 15 16:27:27 2001 @@ -5,6 +5,7 @@ * */ #include <string.h> +#include <stdlib.h> /* for bsearch() */ #include "winspool.h" #include "psdrv.h" #include "debugtools.h" @@ -294,6 +295,7 @@ return TRUE; } +#if 0 /*********************************************************************** * PSDRV_UnicodeToANSI */ @@ -321,9 +323,52 @@ return 0xff; } } +#endif + +/****************************************************************************** + * PSDRV_UVMetrics + * + * Find the AFMMETRICS for a given UV. Returns first glyph in the font + * (space?) if the font does not have a glyph for the given UV. + */ +static int MetricsByUV(const void *a, const void *b) +{ + return (int)(((const AFMMETRICS *)a)->UV - ((const AFMMETRICS *)b)->UV); +} + +const AFMMETRICS *PSDRV_UVMetrics(LONG UV, const PSDRV_PDEVICE *physDev) +{ + AFMMETRICS key; + const AFMMETRICS *needle; + + /* + * Ugly work-around for symbol fonts. Wine is sending characters which + * belong in the Unicode private use range (U+F020 - U+F0FF) as ASCII + * characters (U+0020 - U+00FF). + */ + + if ((physDev->font.afm->Metrics->UV & 0xff00) == 0xf000 && UV < 0x100) + UV |= 0xf000; + + key.UV = UV; + + needle = bsearch(&key, physDev->font.afm->Metrics, + physDev->font.afm->NumofMetrics, sizeof(AFMMETRICS), + MetricsByUV); + + if (needle == NULL) + { + WARN("No glyph for U+%.4lX in %s\n", UV, physDev->font.afm->FontName); + needle = physDev->font.afm->Metrics; + } + + return needle; +} + /*********************************************************************** * PSDRV_GetTextExtentPoint */ +#if 0 BOOL PSDRV_GetTextExtentPoint( DC *dc, LPCWSTR str, INT count, LPSIZE size ) { @@ -346,11 +391,30 @@ return TRUE; } +#endif +BOOL PSDRV_GetTextExtentPoint(DC *dc, LPCWSTR str, INT count, LPSIZE size) +{ + PSDRV_PDEVICE *physDev = (PSDRV_PDEVICE *)dc->physDev; + int i; + float width = 0.0; + + for (i = 0; i < count && str[i] != '\0'; ++i) + width += PSDRV_UVMetrics(str[i], physDev)->WX; + + width *= physDev->font.scale; + + size->cx = GDI_ROUND((FLOAT)width * dc->xformVport2World.eM11); + size->cy = GDI_ROUND((FLOAT)physDev->font.tm.tmHeight * + dc->xformVport2World.eM22); + + return TRUE; +} /*********************************************************************** * PSDRV_GetCharWidth */ +#if 0 BOOL PSDRV_GetCharWidth( DC *dc, UINT firstChar, UINT lastChar, LPINT buffer ) { @@ -365,7 +429,24 @@ return TRUE; } +#endif +BOOL PSDRV_GetCharWidth(DC *dc, UINT firstChar, UINT lastChar, LPINT buffer) +{ + PSDRV_PDEVICE *physDev = (PSDRV_PDEVICE *)dc->physDev; + UINT i; + + if (lastChar > 0xffff || firstChar > lastChar) + { + SetLastError(ERROR_INVALID_PARAMETER); + return FALSE; + } + + for (i = firstChar; i < lastChar; ++i) + *buffer++ = PSDRV_UVMetrics(i, physDev)->WX * physDev->font.scale; + + return TRUE; +} /*********************************************************************** * PSDRV_SetFont diff -urN ../wine-20010714cvs/dlls/wineps/ps.c ./dlls/wineps/ps.c --- ../wine-20010714cvs/dlls/wineps/ps.c Sun Jul 15 16:07:36 2001 +++ ./dlls/wineps/ps.c Sun Jul 15 16:25:12 2001 @@ -115,6 +115,9 @@ static char psshow[] = /* string */ "(%s) show\n"; +static const char psglyphshow[] = /* glyph name */ +"/%s glyphshow\n"; + static char pssetfont[] = /* fontname, xscale, yscale, ascent, escapement */ "/%s findfont\n" "[%d 0 0 %d 0 0]\n" @@ -634,6 +637,7 @@ return TRUE; } +#if 0 BOOL PSDRV_WriteShow(DC *dc, LPCWSTR str, INT count) { char *buf, *buf1; @@ -671,6 +675,32 @@ return TRUE; } +#endif + +BOOL PSDRV_WriteShow(DC *dc, LPCWSTR str, INT count) +{ + char buf[128]; + int i; + + for (i = 0; i < count; ++i) + { + LPCSTR name; + int l; + + name = PSDRV_UVMetrics(str[i], (PSDRV_PDEVICE *)dc->physDev)->N->sz; + l = snprintf(buf, sizeof(buf), psglyphshow, name); + + if (l < sizeof(psglyphshow) - 2 || l > sizeof(buf) - 1) + { + WARN("Unusable glyph name '%s' - ignoring\n", name); + continue; + } + + PSDRV_WriteSpool(dc, buf, l); + } + + return TRUE; +} BOOL PSDRV_WriteFill(DC *dc) { diff -urN ../wine-20010714cvs/dlls/wineps/psdrv.h ./dlls/wineps/psdrv.h --- ../wine-20010714cvs/dlls/wineps/psdrv.h Tue May 29 17:06:11 2001 +++ ./dlls/wineps/psdrv.h Sun Jul 15 16:11:36 2001 @@ -421,6 +421,7 @@ GLYPHNAME *PSDRV_GlyphName(LPCSTR szName); VOID PSDRV_IndexGlyphList(); BOOL PSDRV_GetTrueTypeMetrics(); +const AFMMETRICS *PSDRV_UVMetrics(LONG UV, const PSDRV_PDEVICE *physDev); #endif

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RE: Documentation fixes
by Patrik Stridvall 15 Jul '01

15 Jul '01

> Patrik Stridvall <ps(a)leissner.se> writes: > > > What kludge? Ugly OK, that is your subjective opinion, but kludge? > > Even if we only see it from a purely C language perspective, > > it solves the problem of making sure that the C library functions > > have the prototypes we expect them to have. There is no other > > way to solve that problem that I can think of so it is certainly > > not a kludge. > > Not only is it not a problem we need to solve, but it's more likely to > actually cause new problems. I wouldn't be surprised at all if your > patch broke compile on some platforms that have some slight > differences in prototypes (like char* vs. const char*). Well, believe it or not the thought actually occured to me before I submitted the patch, so I actually tested it on Solaris, FreeBSD and Linux, and the only thing I had to change was the include order or stdarg.h to make it work on all platforms. The thing is that if it actually breaks on some platform it is a red light that something might be (and probably is) wrong. We can always fix it with #ifdef:s and winapi_{check,extract,fixup} or whatever can use the #ifdef to generate a correct entry for that platform if need be. Of course the more likely scenario will be that it serves as a reminder that we really can't export the C library function directly because of platform incompabillities and simply don't do it. And no, I don't believe const/non-const is a problem. Beside even if it turn out I'm wrong we can just add a "#define const /* nothing */" at the top of each externs.c file. That, I admit, is a kludge but only a very small and harmless one. > > If you are not convinced now, you never will be. > > I think we agree on this one ;-) Probably. I don't have much hope of convincing you with the statement above either.

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Re: Handling X errors using exception handlers
by Alexandre Julliard 15 Jul '01

15 Jul '01

Lionel Ulmer <lionel.ulmer(a)free.fr> writes: > When discussing with Ove yesterday on #WineHQ about the handling of X > errors, he told me about an idea of his : using exceptions to handle X > errors. The main problem with that is that I don't think you can jump out of Xlib without corrupting its state. Also you'd need to properly unlock the tsx11 lock in case of exception, which will probably require an finally handler around each X call. My idea was to have the following two functions: void X11DRV_expect_error( unsigned char request, unsigned char error, XID id ); int X11DRV_check_error(void); You'd call X11DRV_expect_error before doing an X call that can fail; then if an X error happens that matches what you expect, the X error handler will simply set a flag and ignore the error (if it doesn't match you get the standard error handling). Then after the call you use X11DRV_check_error to see if your error happened or not. Would this work for what you need? -- Alexandre Julliard julliard(a)winehq.com

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Wine freshman class
by Paul Gaynor 15 Jul '01

15 Jul '01

Hi, I am new to the development of wine, part of the wine freshman class :) I am really interested in developing wine for use with OpenGL hopefully to push the performance of the 3-D to window$ level. I am interested in making a striped build that just handles OpenGL strictly for gaming. Any pointers that any of you can give to get me started on my journey would be wonderfully appreciated. :) How much Win$/Linux programming experience is needed with the various tasks associated with developing wine? What are the different areas (and how much programming) is required for each task of developing wine? What do you think a good place for a beginning programmer/ developer to start? I am very excited that this group exists and I am looking forward to hacking on wine :) Paul Gaynor gpk2(a)uswest.net

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re: small named pipe patch
by Mike McCormack 14 Jul '01

14 Jul '01

Hi Ove, funny that, i had the same problems with install shield and thought about the same solution... but i don't know enough about COM to make it work. i'll have a go at implementing WaitForNamedPipe... it'd be great to have an interprocess COM implementation :-) Mike > I'm planning to use named pipes to implement a basic interprocess COM, to > support the stupid InstallShield v6 under Wine, so it would be nice if > they could be implemented fully (would e.g. be nice if someone implemented > WaitForNamedPipe for me, and things like that). > > (Would that be a good idea?) ------------------------------------------ mailto:Mike_McCormack(a)start.com.au ph +82 16 430 0425 __________________________________________________________________ Get your free Australian email account at http://www.Looksmart.com.au

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