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gdi32: Return more meaningful data in the null driver GetDeviceCaps implementation.

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Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Alexandre Julliard 2017-05-18 12:54:45 +02:00
parent 9baceabb88
commit 0c005a329e
1 changed files with 69 additions and 16 deletions
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85
dlls/gdi32/driver.c
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@ -298,23 +298,76 @@ static BOOL nulldrv_GetCharWidth( PHYSDEV dev, UINT first, UINT last, INT *buffe
static INT nulldrv_GetDeviceCaps( PHYSDEV dev, INT cap )
{
switch (cap) /* return meaningful values for some entries */
static int screen_dpi;
int bpp;
switch (cap)
{
case HORZRES: return 640;
case VERTRES: return 480;
case BITSPIXEL: return 1;
case PLANES: return 1;
case NUMCOLORS: return 2;
case ASPECTX: return 36;
case ASPECTY: return 36;
case ASPECTXY: return 51;
case LOGPIXELSX: return 72;
case LOGPIXELSY: return 72;
case SIZEPALETTE: return 2;
case TEXTCAPS: return (TC_OP_CHARACTER | TC_OP_STROKE | TC_CP_STROKE |
TC_CR_ANY | TC_SF_X_YINDEP | TC_SA_DOUBLE | TC_SA_INTEGER |
TC_SA_CONTIN | TC_UA_ABLE | TC_SO_ABLE | TC_RA_ABLE | TC_VA_ABLE);
default: return 0;
case DRIVERVERSION: return 0x4000;
case TECHNOLOGY: return DT_RASDISPLAY;
case HORZSIZE: return MulDiv( GetDeviceCaps( dev->hdc, HORZRES ), 254,
GetDeviceCaps( dev->hdc, LOGPIXELSX ) * 10 );
case VERTSIZE: return MulDiv( GetDeviceCaps( dev->hdc, VERTRES ), 254,
GetDeviceCaps( dev->hdc, LOGPIXELSY ) * 10 );
case HORZRES: return 640;
case VERTRES: return 480;
case BITSPIXEL: return 32;
case PLANES: return 1;
case NUMBRUSHES: return -1;
case NUMPENS: return -1;
case NUMMARKERS: return 0;
case NUMFONTS: return 0;
case PDEVICESIZE: return 0;
case CURVECAPS: return (CC_CIRCLES | CC_PIE | CC_CHORD | CC_ELLIPSES | CC_WIDE |
CC_STYLED | CC_WIDESTYLED | CC_INTERIORS | CC_ROUNDRECT);
case LINECAPS: return (LC_POLYLINE | LC_MARKER | LC_POLYMARKER | LC_WIDE |
LC_STYLED | LC_WIDESTYLED | LC_INTERIORS);
case POLYGONALCAPS: return (PC_POLYGON | PC_RECTANGLE | PC_WINDPOLYGON | PC_SCANLINE |
PC_WIDE | PC_STYLED | PC_WIDESTYLED | PC_INTERIORS);
case TEXTCAPS: return (TC_OP_CHARACTER | TC_OP_STROKE | TC_CP_STROKE |
TC_CR_ANY | TC_SF_X_YINDEP | TC_SA_DOUBLE | TC_SA_INTEGER |
TC_SA_CONTIN | TC_UA_ABLE | TC_SO_ABLE | TC_RA_ABLE | TC_VA_ABLE);
case CLIPCAPS: return CP_RECTANGLE;
case RASTERCAPS: return (RC_BITBLT | RC_BITMAP64 | RC_GDI20_OUTPUT | RC_DI_BITMAP | RC_DIBTODEV |
RC_BIGFONT | RC_STRETCHBLT | RC_FLOODFILL | RC_STRETCHDIB | RC_DEVBITS |
(GetDeviceCaps( dev->hdc, SIZEPALETTE ) ? RC_PALETTE : 0));
case ASPECTX: return 36;
case ASPECTY: return 36;
case ASPECTXY: return (int)(hypot( GetDeviceCaps( dev->hdc, ASPECTX ),
GetDeviceCaps( dev->hdc, ASPECTY )) + 0.5);
case CAPS1: return 0;
case SIZEPALETTE: return 0;
case NUMRESERVED: return 20;
case PHYSICALWIDTH: return 0;
case PHYSICALHEIGHT: return 0;
case PHYSICALOFFSETX: return 0;
case PHYSICALOFFSETY: return 0;
case SCALINGFACTORX: return 0;
case SCALINGFACTORY: return 0;
case VREFRESH: return 0;
case DESKTOPVERTRES: return GetDeviceCaps( dev->hdc, VERTRES );
case DESKTOPHORZRES: return GetDeviceCaps( dev->hdc, HORZRES );
case BLTALIGNMENT: return 0;
case SHADEBLENDCAPS: return 0;
case COLORMGMTCAPS: return 0;
case LOGPIXELSX:
case LOGPIXELSY:
if (!screen_dpi && !(screen_dpi = get_dpi())) screen_dpi = 96;
return screen_dpi;
case NUMCOLORS:
bpp = GetDeviceCaps( dev->hdc, BITSPIXEL );
return (bpp > 8) ? -1 : (1 << bpp);
case COLORRES:
/* The observed correspondence between BITSPIXEL and COLORRES is:
* BITSPIXEL: 8 -> COLORRES: 18
* BITSPIXEL: 16 -> COLORRES: 16
* BITSPIXEL: 24 -> COLORRES: 24
* BITSPIXEL: 32 -> COLORRES: 24 */
bpp = GetDeviceCaps( dev->hdc, BITSPIXEL );
return (bpp <= 8) ? 18 : min( 24, bpp );
default:
FIXME("(%p): unsupported capability %d, will return 0\n", dev->hdc, cap );
return 0;
}
}