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gdi32: Export a function to retrieve the module handle of the graphics driver for a DC.

This commit is contained in:
Alexandre Julliard 2012-10-22 15:05:54 +02:00
parent 78b86e3446
commit 5c1a752d61
5 changed files with 47 additions and 8 deletions
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5
dlls/gdi32/dc.c
View File

@ -81,6 +81,7 @@ DC *alloc_dc_ptr( WORD magic )
dc->nulldrv.funcs = &null_driver;
dc->physDev = &dc->nulldrv;
dc->module = gdi32_module;
dc->thread = GetCurrentThreadId();
dc->refcount = 1;
dc->wndExtX = 1;
@ -568,6 +569,7 @@ HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
HDC hdc;
DC * dc;
const struct gdi_dc_funcs *funcs;
HMODULE module;
WCHAR buf[300];
GDI_CheckNotLock();
@ -582,7 +584,7 @@ HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
strcpyW(buf, driver);
}
if (!(funcs = DRIVER_load_driver( buf )))
if (!(funcs = DRIVER_load_driver( buf, &module )))
{
ERR( "no driver found for %s\n", debugstr_w(buf) );
return 0;
@ -590,6 +592,7 @@ HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
if (!(dc = alloc_dc_ptr( OBJ_DC ))) return 0;
hdc = dc->hSelf;
dc->module = module;
dc->hBitmap = GDI_inc_ref_count( GetStockObject( DEFAULT_BITMAP ));
TRACE("(driver=%s, device=%s, output=%s): returning %p\n",

42
dlls/gdi32/driver.c
View File

@ -48,6 +48,7 @@ struct graphics_driver
static struct list drivers = LIST_INIT( drivers );
static struct graphics_driver *display_driver;
static DWORD display_driver_load_error;
const struct gdi_dc_funcs *font_driver = NULL;
@ -92,14 +93,18 @@ static struct graphics_driver *create_driver( HMODULE module )
*
* Special case for loading the display driver: get the name from the config file
*/
static const struct gdi_dc_funcs *get_display_driver(void)
static const struct gdi_dc_funcs *get_display_driver( HMODULE *module_ret )
{
struct graphics_driver *driver;
char buffer[MAX_PATH], libname[32], *name, *next;
HMODULE module = 0;
HKEY hkey;
if (display_driver) return display_driver->funcs; /* already loaded */
if (display_driver)
{
*module_ret = display_driver->module;
return display_driver->funcs; /* already loaded */
}
strcpy( buffer, "x11" ); /* default value */
/* @@ Wine registry key: HKCU\Software\Wine\Drivers */
@ -121,6 +126,8 @@ static const struct gdi_dc_funcs *get_display_driver(void)
name = next;
}
if (!module) display_driver_load_error = GetLastError();
if (!(driver = create_driver( module )))
{
MESSAGE( "Could not create graphics driver '%s'\n", buffer );
@ -140,7 +147,7 @@ static const struct gdi_dc_funcs *get_display_driver(void)
/**********************************************************************
* DRIVER_load_driver
*/
const struct gdi_dc_funcs *DRIVER_load_driver( LPCWSTR name )
const struct gdi_dc_funcs *DRIVER_load_driver( LPCWSTR name, HMODULE *module_ret )
{
HMODULE module;
struct graphics_driver *driver, *new_driver;
@ -148,11 +155,16 @@ const struct gdi_dc_funcs *DRIVER_load_driver( LPCWSTR name )
static const WCHAR display1W[] = {'\\','\\','.','\\','D','I','S','P','L','A','Y','1',0};
/* display driver is a special case */
if (!strcmpiW( name, displayW ) || !strcmpiW( name, display1W )) return get_display_driver();
if (!strcmpiW( name, displayW ) || !strcmpiW( name, display1W ))
return get_display_driver( module_ret );
if ((module = GetModuleHandleW( name )))
{
if (display_driver && display_driver->module == module) return display_driver->funcs;
if (display_driver && display_driver->module == module)
{
*module_ret = module;
return display_driver->funcs;
}
EnterCriticalSection( &driver_section );
LIST_FOR_EACH_ENTRY( driver, &drivers, struct graphics_driver, entry )
{
@ -182,11 +194,31 @@ const struct gdi_dc_funcs *DRIVER_load_driver( LPCWSTR name )
list_add_head( &drivers, &driver->entry );
TRACE( "loaded driver %p for %s\n", driver, debugstr_w(name) );
done:
*module_ret = driver->module;
LeaveCriticalSection( &driver_section );
return driver->funcs;
}
/***********************************************************************
* __wine_get_driver_module (GDI32.@)
*/
HMODULE CDECL __wine_get_driver_module( HDC hdc )
{
DC *dc;
HMODULE ret = 0;
if ((dc = get_dc_ptr( hdc )))
{
ret = dc->module;
release_dc_ptr( dc );
if (!ret) SetLastError( display_driver_load_error );
}
else SetLastError( ERROR_INVALID_HANDLE );
return ret;
}
static INT nulldrv_AbortDoc( PHYSDEV dev )
{
return 0;

3
dlls/gdi32/gdi32.spec
View File

@ -513,5 +513,8 @@
@ cdecl __wine_make_gdi_object_system(long long)
@ cdecl __wine_set_visible_region(long long ptr ptr ptr)
# Graphics drivers
@ cdecl __wine_get_driver_module(long)
# OpenGL
@ cdecl __wine_get_wgl_driver(long long)

4
dlls/gdi32/gdi_private.h
View File

@ -71,7 +71,7 @@ typedef struct tagDC
struct tagDC *saved_dc;
DWORD_PTR dwHookData;
DCHOOKPROC hookProc; /* DC hook */
HMODULE module; /* module handle of the graphics driver */
BOOL bounds_enabled:1; /* bounds tracking is enabled */
BOOL path_open:1; /* path is currently open (only for saved DCs) */
@ -272,7 +272,7 @@ extern const struct gdi_dc_funcs null_driver DECLSPEC_HIDDEN;
extern const struct gdi_dc_funcs dib_driver DECLSPEC_HIDDEN;
extern const struct gdi_dc_funcs path_driver DECLSPEC_HIDDEN;
extern const struct gdi_dc_funcs *font_driver DECLSPEC_HIDDEN;
extern const struct gdi_dc_funcs *DRIVER_load_driver( LPCWSTR name ) DECLSPEC_HIDDEN;
extern const struct gdi_dc_funcs *DRIVER_load_driver( LPCWSTR name, HMODULE *module ) DECLSPEC_HIDDEN;
extern BOOL DRIVER_GetDriverName( LPCWSTR device, LPWSTR driver, DWORD size ) DECLSPEC_HIDDEN;
/* enhmetafile.c */

1
include/wine/gdi_driver.h
View File

@ -275,6 +275,7 @@ WINGDIAPI WORD WINAPI SetHookFlags(HDC,WORD);
extern void CDECL __wine_make_gdi_object_system( HGDIOBJ handle, BOOL set );
extern void CDECL __wine_set_visible_region( HDC hdc, HRGN hrgn, const RECT *vis_rect,
const RECT *device_rect, struct window_surface *surface );
extern HMODULE CDECL __wine_get_driver_module( HDC hdc );
extern struct opengl_funcs * CDECL __wine_get_wgl_driver( HDC hdc, UINT version );
#endif /* __WINE_WINE_GDI_DRIVER_H */