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wine/dlls/gdi/driver.c
Alexandre Julliard 64781643dd Do not use the PEB lock as loader lock, use a separate critical 
section for that (and for the graphics drivers).
2002-02-02 18:13:50 +00:00

446 lines
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/*
* Graphics driver management functions
*
* Copyright 1996 Alexandre Julliard
*/
#include <string.h>
#include "winbase.h"
#include "winreg.h"
#include "ntddk.h"
#include "gdi.h"
#include "win16drv.h"
#include "debugtools.h"
DEFAULT_DEBUG_CHANNEL(driver);
struct graphics_driver
{
struct graphics_driver *next;
struct graphics_driver *prev;
HMODULE module; /* module handle */
unsigned int count; /* reference count */
DC_FUNCTIONS funcs;
};
static struct graphics_driver *first_driver;
static struct graphics_driver *display_driver;
static const DC_FUNCTIONS *win16_driver;
static CRITICAL_SECTION driver_section = CRITICAL_SECTION_INIT( "driver_section" );
/**********************************************************************
* create_driver
*
* Allocate and fill the driver structure for a given module.
*/
static struct graphics_driver *create_driver( HMODULE module )
{
struct graphics_driver *driver;
if (!(driver = HeapAlloc( GetProcessHeap(), 0, sizeof(*driver)))) return NULL;
driver->next = NULL;
driver->prev = NULL;
driver->module = module;
driver->count = 1;
/* fill the function table */
#define GET_FUNC(name) driver->funcs.p##name = (void*)GetProcAddress( module, #name )
GET_FUNC(AbortDoc);
GET_FUNC(AbortPath);
GET_FUNC(AngleArc);
GET_FUNC(Arc);
GET_FUNC(ArcTo);
GET_FUNC(BeginPath);
GET_FUNC(BitBlt);
GET_FUNC(BitmapBits);
GET_FUNC(ChoosePixelFormat);
GET_FUNC(Chord);
GET_FUNC(CloseFigure);
GET_FUNC(CreateBitmap);
GET_FUNC(CreateDC);
GET_FUNC(CreateDIBSection);
GET_FUNC(DeleteDC);
GET_FUNC(DeleteObject);
GET_FUNC(DescribePixelFormat);
GET_FUNC(DeviceCapabilities);
GET_FUNC(Ellipse);
GET_FUNC(EndDoc);
GET_FUNC(EndPage);
GET_FUNC(EndPath);
GET_FUNC(EnumDeviceFonts);
GET_FUNC(ExcludeClipRect);
GET_FUNC(ExtDeviceMode);
GET_FUNC(ExtEscape);
GET_FUNC(ExtFloodFill);
GET_FUNC(ExtTextOut);
GET_FUNC(FillPath);
GET_FUNC(FillRgn);
GET_FUNC(FlattenPath);
GET_FUNC(FrameRgn);
GET_FUNC(GetCharWidth);
GET_FUNC(GetDCOrgEx);
GET_FUNC(GetDeviceCaps);
GET_FUNC(GetDeviceGammaRamp);
GET_FUNC(GetPixel);
GET_FUNC(GetPixelFormat);
GET_FUNC(GetTextExtentPoint);
GET_FUNC(GetTextMetrics);
GET_FUNC(IntersectClipRect);
GET_FUNC(InvertRgn);
GET_FUNC(LineTo);
GET_FUNC(MoveTo);
GET_FUNC(OffsetClipRgn);
GET_FUNC(OffsetViewportOrg);
GET_FUNC(OffsetWindowOrg);
GET_FUNC(PaintRgn);
GET_FUNC(PatBlt);
GET_FUNC(Pie);
GET_FUNC(PolyBezier);
GET_FUNC(PolyBezierTo);
GET_FUNC(PolyDraw);
GET_FUNC(PolyPolygon);
GET_FUNC(PolyPolyline);
GET_FUNC(Polygon);
GET_FUNC(Polyline);
GET_FUNC(PolylineTo);
GET_FUNC(RealizePalette);
GET_FUNC(Rectangle);
GET_FUNC(RestoreDC);
GET_FUNC(RoundRect);
GET_FUNC(SaveDC);
GET_FUNC(ScaleViewportExt);
GET_FUNC(ScaleWindowExt);
GET_FUNC(SelectClipPath);
GET_FUNC(SelectClipRgn);
GET_FUNC(SelectObject);
GET_FUNC(SelectPalette);
GET_FUNC(SetBkColor);
GET_FUNC(SetBkMode);
GET_FUNC(SetDIBitsToDevice);
GET_FUNC(SetDeviceClipping);
GET_FUNC(SetDeviceGammaRamp);
GET_FUNC(SetMapMode);
GET_FUNC(SetMapperFlags);
GET_FUNC(SetPixel);
GET_FUNC(SetPixelFormat);
GET_FUNC(SetPolyFillMode);
GET_FUNC(SetROP2);
GET_FUNC(SetRelAbs);
GET_FUNC(SetStretchBltMode);
GET_FUNC(SetTextAlign);
GET_FUNC(SetTextCharacterExtra);
GET_FUNC(SetTextColor);
GET_FUNC(SetTextJustification);
GET_FUNC(SetViewportExt);
GET_FUNC(SetViewportOrg);
GET_FUNC(SetWindowExt);
GET_FUNC(SetWindowOrg);
GET_FUNC(StartDoc);
GET_FUNC(StartPage);
GET_FUNC(StretchBlt);
GET_FUNC(StretchDIBits);
GET_FUNC(StrokeAndFillPath);
GET_FUNC(StrokePath);
GET_FUNC(SwapBuffers);
GET_FUNC(WidenPath);
#undef GET_FUNC
/* add it to the list */
driver->prev = NULL;
if ((driver->next = first_driver)) driver->next->prev = driver;
first_driver = driver;
return driver;
}
/**********************************************************************
* load_display_driver
*
* Special case for loading the display driver: get the name from the config file
*/
static struct graphics_driver *load_display_driver(void)
{
char buffer[MAX_PATH];
HMODULE module;
HKEY hkey;
if (display_driver) /* already loaded */
{
display_driver->count++;
return display_driver;
}
strcpy( buffer, "x11drv" ); /* default value */
if (!RegOpenKeyA( HKEY_LOCAL_MACHINE, "Software\\Wine\\Wine\\Config\\Wine", &hkey ))
{
DWORD type, count = sizeof(buffer);
RegQueryValueExA( hkey, "GraphicsDriver", 0, &type, buffer, &count );
RegCloseKey( hkey );
}
if (!(module = LoadLibraryA( buffer )))
{
MESSAGE( "Could not load graphics driver '%s'\n", buffer );
return NULL;
}
if (!(display_driver = create_driver( module )))
{
MESSAGE( "Could not create graphics driver '%s'\n", buffer );
FreeLibrary( module );
return NULL;
}
display_driver->count++; /* we don't want to free it */
return display_driver;
}
/**********************************************************************
* DRIVER_load_driver
*/
const DC_FUNCTIONS *DRIVER_load_driver( LPCSTR name )
{
HMODULE module;
struct graphics_driver *driver;
RtlEnterCriticalSection( &driver_section );
/* display driver is a special case */
if (!strcasecmp( name, "display" ))
{
driver = load_display_driver();
RtlLeaveCriticalSection( &driver_section );
return &driver->funcs;
}
if ((module = GetModuleHandleA( name )))
{
for (driver = first_driver; driver; driver = driver->next)
{
if (driver->module == module)
{
driver->count++;
RtlLeaveCriticalSection( &driver_section );
return &driver->funcs;
}
}
}
if (!(module = LoadLibraryA( name )))
{
if (!win16_driver) win16_driver = WIN16DRV_Init();
RtlLeaveCriticalSection( &driver_section );
return win16_driver;
}
if (!(driver = create_driver( module )))
{
FreeLibrary( module );
RtlLeaveCriticalSection( &driver_section );
return NULL;
}
TRACE( "loaded driver %p for %s\n", driver, name );
RtlLeaveCriticalSection( &driver_section );
return &driver->funcs;
}
/**********************************************************************
* DRIVER_get_driver
*
* Get a new copy of an existing driver.
*/
const DC_FUNCTIONS *DRIVER_get_driver( const DC_FUNCTIONS *funcs )
{
struct graphics_driver *driver;
RtlEnterCriticalSection( &driver_section );
if (funcs != win16_driver)
{
for (driver = first_driver; driver; driver = driver->next)
if (&driver->funcs == funcs) break;
if (!driver) ERR( "driver not found, trouble ahead\n" );
driver->count++;
}
RtlLeaveCriticalSection( &driver_section );
return funcs;
}
/**********************************************************************
* DRIVER_release_driver
*
* Release a driver by decrementing ref count and freeing it if needed.
*/
void DRIVER_release_driver( const DC_FUNCTIONS *funcs )
{
struct graphics_driver *driver;
RtlEnterCriticalSection( &driver_section );
if (funcs == win16_driver) goto done;
for (driver = first_driver; driver; driver = driver->next)
if (&driver->funcs == funcs) break;
if (!driver) goto done;
if (--driver->count) goto done;
/* removed last reference, free it */
if (driver->next) driver->next->prev = driver->prev;
if (driver->prev) driver->prev->next = driver->next;
else first_driver = driver->next;
if (driver == display_driver) display_driver = NULL;
FreeLibrary( driver->module );
HeapFree( GetProcessHeap(), 0, driver );
done:
RtlLeaveCriticalSection( &driver_section );
}
/*****************************************************************************
* DRIVER_GetDriverName
*
*/
BOOL DRIVER_GetDriverName( LPCSTR device, LPSTR driver, DWORD size )
{
char *p;
size = GetProfileStringA("devices", device, "", driver, size);
if(!size) {
WARN("Unable to find '%s' in [devices] section of win.ini\n", device);
return FALSE;
}
p = strchr(driver, ',');
if(!p)
{
WARN("'%s' entry in [devices] section of win.ini is malformed.\n", device);
return FALSE;
}
*p = '\0';
TRACE("Found '%s' for '%s'\n", driver, device);
return TRUE;
}
/*****************************************************************************
* @ [GDI32.100]
*
* This should thunk to 16-bit and simply call the proc with the given args.
*/
INT WINAPI GDI_CallDevInstall16( FARPROC16 lpfnDevInstallProc, HWND hWnd,
LPSTR lpModelName, LPSTR OldPort, LPSTR NewPort )
{
FIXME("(%p, %04x, %s, %s, %s)\n", lpfnDevInstallProc, hWnd, lpModelName, OldPort, NewPort );
return -1;
}
/*****************************************************************************
* @ [GDI32.101]
*
* This should load the correct driver for lpszDevice and calls this driver's
* ExtDeviceModePropSheet proc.
*
* Note: The driver calls a callback routine for each property sheet page; these
* pages are supposed to be filled into the structure pointed to by lpPropSheet.
* The layout of this structure is:
*
* struct
* {
* DWORD nPages;
* DWORD unknown;
* HPROPSHEETPAGE pages[10];
* };
*/
INT WINAPI GDI_CallExtDeviceModePropSheet16( HWND hWnd, LPCSTR lpszDevice,
LPCSTR lpszPort, LPVOID lpPropSheet )
{
FIXME("(%04x, %s, %s, %p)\n", hWnd, lpszDevice, lpszPort, lpPropSheet );
return -1;
}
/*****************************************************************************
* @ [GDI32.102]
*
* This should load the correct driver for lpszDevice and calls this driver's
* ExtDeviceMode proc.
*/
INT WINAPI GDI_CallExtDeviceMode16( HWND hwnd,
LPDEVMODEA lpdmOutput, LPSTR lpszDevice,
LPSTR lpszPort, LPDEVMODEA lpdmInput,
LPSTR lpszProfile, DWORD fwMode )
{
char buf[300];
HDC hdc;
DC *dc;
INT ret = -1;
INT (*pExtDeviceMode)(LPSTR,HWND,LPDEVMODEA,LPSTR,LPSTR,LPDEVMODEA,LPSTR,DWORD);
TRACE("(%04x, %p, %s, %s, %p, %s, %ld)\n",
hwnd, lpdmOutput, lpszDevice, lpszPort, lpdmInput, lpszProfile, fwMode );
if(!DRIVER_GetDriverName( lpszDevice, buf, sizeof(buf) )) return -1;
if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
if ((dc = DC_GetDCPtr( hdc )))
{
pExtDeviceMode = dc->funcs->pExtDeviceMode;
GDI_ReleaseObj( hdc );
if (pExtDeviceMode)
ret = pExtDeviceMode(buf, hwnd, lpdmOutput, lpszDevice, lpszPort,
lpdmInput, lpszProfile, fwMode);
}
DeleteDC( hdc );
return ret;
}
/****************************************************************************
* @ [GDI32.103]
*
* This should load the correct driver for lpszDevice and calls this driver's
* AdvancedSetupDialog proc.
*/
INT WINAPI GDI_CallAdvancedSetupDialog16( HWND hwnd, LPSTR lpszDevice,
LPDEVMODEA devin, LPDEVMODEA devout )
{
TRACE("(%04x, %s, %p, %p)\n", hwnd, lpszDevice, devin, devout );
return -1;
}
/*****************************************************************************
* @ [GDI32.104]
*
* This should load the correct driver for lpszDevice and calls this driver's
* DeviceCapabilities proc.
*/
DWORD WINAPI GDI_CallDeviceCapabilities16( LPCSTR lpszDevice, LPCSTR lpszPort,
WORD fwCapability, LPSTR lpszOutput,
LPDEVMODEA lpdm )
{
char buf[300];
HDC hdc;
DC *dc;
INT ret = -1;
TRACE("(%s, %s, %d, %p, %p)\n", lpszDevice, lpszPort, fwCapability, lpszOutput, lpdm );
if(!DRIVER_GetDriverName( lpszDevice, buf, sizeof(buf) )) return -1;
if (!(hdc = CreateICA( buf, lpszDevice, lpszPort, NULL ))) return -1;
if ((dc = DC_GetDCPtr( hdc )))
{
if (dc->funcs->pDeviceCapabilities)
ret = dc->funcs->pDeviceCapabilities( buf, lpszDevice, lpszPort,
fwCapability, lpszOutput, lpdm );
GDI_ReleaseObj( hdc );
}
DeleteDC( hdc );
return ret;
}
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