- more up-to-date description of source tree

- better example of required comments for an API implementation
- replacement of WINE_PACKED by "pshpack1.h", etc.
- naming conventions for non-api calls and types
- location conventions for non-api header files and prototypes
This commit is contained in:
Klaas van Gend 1999-06-05 11:52:46 +00:00 committed by Alexandre Julliard
parent 1c9b13e9d6
commit 0a7aa169c2

View file

@ -1,6 +1,7 @@
This document should help new developers get started. Like all of Wine, it This document should help new developers get started. Like all of Wine, it
is a work in progress. is a work in progress.
SOURCE TREE STRUCTURE SOURCE TREE STRUCTURE
===================== =====================
@ -23,19 +24,40 @@ KERNEL:
GDI: GDI:
graphics/ - graphics drivers graphics/ - graphics drivers
graphics/x11drv/ - X11 display driver x11drv/ - X11 display driver
graphics/metafiledrv/ - metafile driver win16drv/ -> see below
ttydrv/ - tty display driver
psdrv/ - PostScript graphics driver
metafiledrv/ - metafile drivr
enhmetafiledrv/ - enhanced metafile driver
objects/ - logical objects objects/ - logical objects
USER: USER:
controls/ - built-in widgets controls/ - built-in widgets
resources/ - built-in dialog resources resources/ - built-in menu and message box resources
windows/ - window management windows/ - window management
Other DLLs: Other DLLs:
dlls/*/ - Other system DLLs implemented by Wine dlls/ - Other system DLLs implemented by Wine
advapi32/ - crypto, systeminfo, security, eventlogging
avifil32/ - COM object to play AVI files
comctl32/ - common controls
commdlg/ - common dialog boxes (both 16 & 32 bit)
imagehlp/ - PE (Portable Executable) Image Helper lib
msacm/ - audio compression manager (multimedia)
msacm32/ - audio compression manager (multimedia)
ntdll/ - NT implementation of kernel calls
psapi/ - process status API
rasapi32/ - remote access server API
shell32/ - COM object implementing shell views
tapi32/ - telephone API
ver/ - File Installation Library (16 bit)
version/ - File Installation Library (32 bit)
winaspi/ -
winspool/ - Printing & Print Spooler
wnaspi32/ -
Miscellaneous: Miscellaneous:
@ -43,12 +65,16 @@ Miscellaneous:
multimedia/ - multimedia driver multimedia/ - multimedia driver
ipc/ - SysV IPC based interprocess communication ipc/ - SysV IPC based interprocess communication
win32/ - misc Win32 functions win32/ - misc Win32 functions
ole/ - OLE code
nls/ - National Language Support
configuration files
Tools: Tools:
------ ------
rc/ - old resource compiler rc/ - old resource compiler
tools/ - relay code builder, new rc, etc. tools/ - relay code builder, new rc, bugreport
generator, wineconfigurator, etc.
documentation/ - some documentation documentation/ - some documentation
@ -59,6 +85,8 @@ Binary loader specific directories:
if1632/ - relay code if1632/ - relay code
miscemu/ - hardware instruction emulation miscemu/ - hardware instruction emulation
graphics/win16drv/ - Win16 printer driver graphics/win16drv/ - Win16 printer driver
server/ - the main, controlling thread of wine
tsx11/ - thread-safe X11 wrappers (auto generated)
Winelib specific directories: Winelib specific directories:
----------------------------- -----------------------------
@ -67,6 +95,7 @@ Winelib specific directories:
libtest/ - Small samples and tests libtest/ - Small samples and tests
programs/ - Extended samples / system utilities programs/ - Extended samples / system utilities
IMPLEMENTING NEW API CALLS IMPLEMENTING NEW API CALLS
========================== ==========================
@ -79,7 +108,8 @@ unimplemented call will look like (from gdi32.spec)
To implement this call, you need to do the following four things. To implement this call, you need to do the following four things.
1. Find the appropriate parameters for the call, and add a prototype to 1. Find the appropriate parameters for the call, and add a prototype to
[include/windows.h]. In this case, it might look like the correct header file. In this case, that means [include/wingdi.h],
and it might look like
BOOL WINAPI PolyBezierTo(HDC, LPCVOID, DWORD); BOOL WINAPI PolyBezierTo(HDC, LPCVOID, DWORD);
If the function has both an ASCII and a Unicode version, you need to If the function has both an ASCII and a Unicode version, you need to
define both and add a #define WINELIB_NAME_AW declaration. See below define both and add a #define WINELIB_NAME_AW declaration. See below
@ -101,26 +131,38 @@ Add a function called 'PolyBezierTo' somewhere. Good things to put
into a stub: into a stub:
o a correct prototype, including the WINAPI o a correct prototype, including the WINAPI
o header comments, including full documentation for the function and o header comments, including full documentation for the function and
arguments arguments (see documentation/README.documentation)
o A FIXME message and an appropriate return value are good things to o A FIXME message and an appropriate return value are good things to
put in a stub. put in a stub.
/************************************************************ /************************************************************
* PolyBezierTo (GDI32.269) Draw many Bezier curves * PolyBezierTo (GDI32.269)
*
* Draw many Bezier curves
*
* RETURNS
* nonzero on success or zero on faillure
* *
* BUGS * BUGS
* Unimplemented * Unimplemented
*/ */
BOOL WINAPI PolyBezierTo(HDC hdc, LPCVOID p, DWORD count) { BOOL WINAPI PolyBezierTo(HDC hdc, /* handle to device context */
/* tell the user they've got a substandard implementation */ LPCVOID p, /* ptr to array of Point structs */
DWORD count /* nr of points in array */
)
{
/* tell the user they've got a substandard implementation */
FIXME(gdi, ":(%x,%p,%d): stub\n", hdc, p, count); FIXME(gdi, ":(%x,%p,%d): stub\n", hdc, p, count);
/* some programs may be able to compensate,
if they know what happened */ /* some programs may be able to compensate,
* if they know what happened
*/
SetLastError(ERROR_CALL_NOT_IMPLEMENTED); SetLastError(ERROR_CALL_NOT_IMPLEMENTED);
return FALSE; /* error value */ return FALSE; /* error value */
} }
4. Implement and test the function. 4. Implement and test the rest of the function.
MEMORY AND SEGMENTS MEMORY AND SEGMENTS
=================== ===================
@ -177,14 +219,24 @@ struct { BYTE x; WORD y; };
will take 3 bytes under Windows, but 4 with gcc, because gcc will add a will take 3 bytes under Windows, but 4 with gcc, because gcc will add a
dummy byte between x and y. To have the correct layout for structures dummy byte between x and y. To have the correct layout for structures
used by Windows code, you need to use the WINE_PACKED attribute; so you used by Windows code, you need to embed the struct within two special
would declare the above structure like this: #include's which will take care of the packing for you:
#include "pshpack1.h"
struct {BYTE x; WORD y; };
#include "poppack1.h"
For alignment on a 2-byte boundary, there is a "pshpack2.h", etc.
The use of the WINE_PACKED attribute is obsolete. Please remove these
in favour of the above solution.
Using WINE_PACKED, you would declare the above structure like this:
struct { BYTE x; WORD y WINE_PACKED; }; struct { BYTE x; WORD y WINE_PACKED; };
You have to do this every time a structure member is not aligned You had to do this every time a structure member is not aligned
correctly under Windows (i.e. a WORD not on an even address, or a correctly under Windows (i.e. a WORD not on an even address, or a
DWORD on a address that is not a multiple of 4). DWORD on a address that was not a multiple of 4).
NAMING CONVENTIONS FOR API FUNCTIONS AND TYPES NAMING CONVENTIONS FOR API FUNCTIONS AND TYPES
@ -234,6 +286,35 @@ and this will use the correct declaration depending on the definition
of the UNICODE symbol. of the UNICODE symbol.
NAMING CONVENTIONS FOR NON-API FUNCTIONS AND TYPES
==================================================
Functions and data which are internal to your code (or at least shouldn't be
visible to any WineLib or Windows program) should be preceded by
an identifier to the module:
Examples:
ENUMPRINTERS_GetDWORDFromRegistryA() (in dlls/winspool/info.c)
IAVIFile_fnRelease() (in dlls/avifil32/avifile.c)
X11DRV_CreateDC() (in graphics/x11drv/init.c)
TIMER_Init() (implemented in windows/timer.c,
used in loader/main.c )
if you need prototypes for these, there are a few possibilities:
- within same source file only:
put the prototypes at the top of your file and mark them as prototypes.
- within the same module:
create a header file within the subdirectory where that module resides,
e.g. graphics/ddraw_private.h
- from a totally different module, or for use in winelib:
put your header file entry in /include/wine/
but be careful not to clutter this directory!
under no circumstances, you should add non-api calls to the standard
windoze include files. Unfortunately, this is often the case, e.g.
the above example of TIMER_Init is defined in include/message.h
API ENTRY POINTS API ENTRY POINTS
================ ================