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gdi32: Add a mechanism for stacking gdi drivers.

This commit is contained in:
Alexandre Julliard 2011-03-09 20:10:25 +01:00
parent ec54c80ee5
commit 6419edfb6d
6 changed files with 56 additions and 18 deletions
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52
dlls/gdi32/dc.c
View File

@ -79,7 +79,8 @@ DC *alloc_dc_ptr( const DC_FUNCTIONS *funcs, WORD magic )
dc->funcs = funcs;
dc->nulldrv.funcs = &null_driver;
dc->physDev = NULL;
dc->nulldrv.next = NULL;
dc->physDev = &dc->nulldrv;
dc->thread = GetCurrentThreadId();
dc->refcount = 1;
dc->dirty = 0;
@ -228,6 +229,34 @@ void update_dc( DC *dc )
}
/***********************************************************************
* push_dc_driver
*
* Push a driver on top of the DC driver stack.
*/
void push_dc_driver( DC * dc, PHYSDEV physdev )
{
physdev->next = dc->physDev;
physdev->hdc = dc->hSelf;
dc->physDev = physdev;
dc->funcs = physdev->funcs;
}
/***********************************************************************
* pop_dc_driver
*
* Pop the top driver from the DC driver stack.
*/
void pop_dc_driver( DC * dc, PHYSDEV physdev )
{
assert( physdev == dc->physDev );
assert( physdev != &dc->nulldrv );
dc->physDev = physdev->next;
dc->funcs = dc->physDev->funcs;
}
/***********************************************************************
* DC_DeleteObject
*/
@ -633,6 +662,7 @@ HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
{
HDC hdc;
DC * dc;
PHYSDEV physdev;
const DC_FUNCTIONS *funcs;
WCHAR buf[300];
@ -663,14 +693,15 @@ HDC WINAPI CreateDCW( LPCWSTR driver, LPCWSTR device, LPCWSTR output,
debugstr_w(driver), debugstr_w(device), debugstr_w(output), dc->hSelf );
if (dc->funcs->pCreateDC &&
!dc->funcs->pCreateDC( hdc, &dc->physDev, buf, device, output, initData ))
!dc->funcs->pCreateDC( hdc, &physdev, buf, device, output, initData ))
{
WARN("creation aborted by device\n" );
goto error;
}
dc->physDev->funcs = funcs;
dc->physDev->hdc = hdc;
physdev->funcs = funcs;
push_dc_driver( dc, physdev );
dc->vis_rect.left = 0;
dc->vis_rect.top = 0;
dc->vis_rect.right = GetDeviceCaps( hdc, DESKTOPHORZRES );
@ -782,21 +813,20 @@ HDC WINAPI CreateCompatibleDC( HDC hdc )
dc->vis_rect.bottom = 1;
if (!(dc->hVisRgn = CreateRectRgn( 0, 0, 1, 1 ))) goto error; /* default bitmap is 1x1 */
/* Copy the driver-specific physical device info into
* the new DC. The driver may use this read-only info
* while creating the compatible DC below. */
dc->physDev = physDev;
ret = dc->hSelf;
/* Pass the driver-specific physical device info into
* the new DC. The driver may use this read-only info
* while creating the compatible DC. */
if (dc->funcs->pCreateDC &&
!dc->funcs->pCreateDC( dc->hSelf, &dc->physDev, NULL, NULL, NULL, NULL ))
!dc->funcs->pCreateDC( dc->hSelf, &physDev, NULL, NULL, NULL, NULL ))
{
WARN("creation aborted by device\n");
goto error;
}
dc->physDev->funcs = funcs;
dc->physDev->hdc = hdc;
physDev->funcs = funcs;
push_dc_driver( dc, physDev );
DC_InitDC( dc );
release_dc_ptr( dc );
return ret;

3
dlls/gdi32/enhmfdrv/init.c
View File

@ -319,9 +319,8 @@ HDC WINAPI CreateEnhMetaFileW(
free_dc_ptr( dc );
return 0;
}
dc->physDev = (PHYSDEV)physDev;
physDev->dev.funcs = &EMFDRV_Funcs;
physDev->dev.hdc = dc->hSelf;
push_dc_driver( dc, &physDev->dev );
physDev->hdc = dc->hSelf;
if(description) { /* App name\0Title\0\0 */

12
dlls/gdi32/gdi_private.h
View File

@ -75,6 +75,7 @@ typedef struct tagGDIOBJHDR
typedef struct gdi_physdev
{
const struct tagDC_FUNCS *funcs;
struct gdi_physdev *next;
HDC hdc;
} *PHYSDEV;
@ -377,6 +378,8 @@ extern BOOL free_dc_ptr( DC *dc ) DECLSPEC_HIDDEN;
extern DC *get_dc_ptr( HDC hdc ) DECLSPEC_HIDDEN;
extern void release_dc_ptr( DC *dc ) DECLSPEC_HIDDEN;
extern void update_dc( DC *dc ) DECLSPEC_HIDDEN;
extern void push_dc_driver( DC * dc, PHYSDEV physdev ) DECLSPEC_HIDDEN;
extern void pop_dc_driver( DC * dc, PHYSDEV physdev ) DECLSPEC_HIDDEN;
extern void DC_InitDC( DC * dc ) DECLSPEC_HIDDEN;
extern void DC_UpdateXforms( DC * dc ) DECLSPEC_HIDDEN;
extern INT save_dc_state( HDC hdc ) DECLSPEC_HIDDEN;
@ -395,7 +398,14 @@ extern const DC_FUNCTIONS *DRIVER_get_display_driver(void) DECLSPEC_HIDDEN;
extern const DC_FUNCTIONS *DRIVER_load_driver( LPCWSTR name ) DECLSPEC_HIDDEN;
extern BOOL DRIVER_GetDriverName( LPCWSTR device, LPWSTR driver, DWORD size ) DECLSPEC_HIDDEN;
#define GET_DC_PHYSDEV(dc,func) ((dc)->physDev->funcs->func ? (dc)->physDev : &(dc)->nulldrv)
static inline PHYSDEV get_physdev_entry_point( PHYSDEV dev, size_t offset )
{
while (!((void **)dev->funcs)[offset / sizeof(void *)]) dev = dev->next;
return dev;
}
#define GET_DC_PHYSDEV(dc,func) get_physdev_entry_point( (dc)->physDev, FIELD_OFFSET(DC_FUNCTIONS,func))
#define GET_NEXT_PHYSDEV(dev,func) get_physdev_entry_point( (dev)->next, FIELD_OFFSET(DC_FUNCTIONS,func))
/* enhmetafile.c */
extern HENHMETAFILE EMF_Create_HENHMETAFILE(ENHMETAHEADER *emh, BOOL on_disk ) DECLSPEC_HIDDEN;

3
dlls/gdi32/mfdrv/init.c
View File

@ -171,9 +171,8 @@ static DC *MFDRV_AllocMetaFile(void)
free_dc_ptr( dc );
return NULL;
}
dc->physDev = (PHYSDEV)physDev;
physDev->dev.funcs = &MFDRV_Funcs;
physDev->dev.hdc = dc->hSelf;
push_dc_driver( dc, &physDev->dev );
physDev->hdc = dc->hSelf;
if (!(physDev->mh = HeapAlloc( GetProcessHeap(), 0, sizeof(*physDev->mh) )))

2
dlls/wineps.drv/psdrv.h
View File

@ -353,7 +353,7 @@ typedef struct {
typedef struct
{
void *reserved[2]; /* reserved for gdi */
void *reserved[3]; /* reserved for gdi */
HDC hdc;
PSFONT font; /* Current PS font */
DOWNLOAD *downloaded_fonts;

2
dlls/winex11.drv/x11drv.h
View File

@ -144,7 +144,7 @@ struct xrender_info;
/* X physical device */
typedef struct
{
void *reserved[2]; /* reserved for gdi */
void *reserved[3]; /* reserved for gdi */
HDC hdc;
GC gc; /* X Window GC */
Drawable drawable;