Sweden-Number/dlls/gdi32/emfdrv.c

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/*
* Enhanced MetaFile driver
*
* Copyright 1999 Huw D M Davies
* Copyright 2021 Jacek Caban for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "ntgdi_private.h"
typedef struct
{
struct gdi_physdev dev;
INT dev_caps[COLORMGMTCAPS + 1];
} EMFDRV_PDEVICE;
static inline EMFDRV_PDEVICE *get_emf_physdev( PHYSDEV dev )
{
return CONTAINING_RECORD( dev, EMFDRV_PDEVICE, dev );
}
static void emfdrv_update_bounds( DC *dc, RECTL *rect )
{
RECTL *bounds = &dc->attr->emf_bounds;
RECTL vport_rect = *rect;
lp_to_dp( dc, (POINT *)&vport_rect, 2 );
/* The coordinate systems may be mirrored
(LPtoDP handles points, not rectangles) */
if (vport_rect.left > vport_rect.right)
{
LONG temp = vport_rect.right;
vport_rect.right = vport_rect.left;
vport_rect.left = temp;
}
if (vport_rect.top > vport_rect.bottom)
{
LONG temp = vport_rect.bottom;
vport_rect.bottom = vport_rect.top;
vport_rect.top = temp;
}
if (bounds->left > bounds->right)
{
/* first bounding rectangle */
*bounds = vport_rect;
}
else
{
bounds->left = min( bounds->left, vport_rect.left );
bounds->top = min( bounds->top, vport_rect.top );
bounds->right = max( bounds->right, vport_rect.right );
bounds->bottom = max( bounds->bottom, vport_rect.bottom );
}
}
static BOOL CDECL EMFDRV_LineTo( PHYSDEV dev, INT x, INT y )
{
DC *dc = get_physdev_dc( dev );
RECTL bounds;
POINT pt;
pt = dc->attr->cur_pos;
bounds.left = min( x, pt.x );
bounds.top = min( y, pt.y );
bounds.right = max( x, pt.x );
bounds.bottom = max( y, pt.y );
emfdrv_update_bounds( dc, &bounds );
return TRUE;
}
static BOOL CDECL EMFDRV_RoundRect( PHYSDEV dev, INT left, INT top, INT right,
INT bottom, INT ell_width, INT ell_height )
{
DC *dc = get_physdev_dc( dev );
RECTL bounds;
if (left == right || top == bottom) return FALSE;
bounds.left = min( left, right );
bounds.top = min( top, bottom );
bounds.right = max( left, right );
bounds.bottom = max( top, bottom );
if (dc->attr->graphics_mode == GM_COMPATIBLE)
{
bounds.right--;
bounds.bottom--;
}
emfdrv_update_bounds( dc, &bounds );
return TRUE;
}
static BOOL EMFDRV_ArcChordPie( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
INT xstart, INT ystart, INT xend, INT yend, DWORD type )
{
DC *dc = get_physdev_dc( dev );
INT temp, x_centre, y_centre, i;
double angle_start, angle_end;
double xinter_start, yinter_start, xinter_end, yinter_end;
EMRARC emr;
RECTL bounds;
if (left == right || top == bottom) return FALSE;
if (left > right) { temp = left; left = right; right = temp; }
if (top > bottom) { temp = top; top = bottom; bottom = temp; }
if (dc->attr->graphics_mode == GM_COMPATIBLE)
{
right--;
bottom--;
}
emr.emr.iType = type;
emr.emr.nSize = sizeof(emr);
emr.rclBox.left = left;
emr.rclBox.top = top;
emr.rclBox.right = right;
emr.rclBox.bottom = bottom;
emr.ptlStart.x = xstart;
emr.ptlStart.y = ystart;
emr.ptlEnd.x = xend;
emr.ptlEnd.y = yend;
/* Now calculate the BBox */
x_centre = (left + right + 1) / 2;
y_centre = (top + bottom + 1) / 2;
xstart -= x_centre;
ystart -= y_centre;
xend -= x_centre;
yend -= y_centre;
/* invert y co-ords to get angle anti-clockwise from x-axis */
angle_start = atan2( -(double)ystart, (double)xstart );
angle_end = atan2( -(double)yend, (double)xend );
/* These are the intercepts of the start/end lines with the arc */
xinter_start = (right - left + 1)/2 * cos(angle_start) + x_centre;
yinter_start = -(bottom - top + 1)/2 * sin(angle_start) + y_centre;
xinter_end = (right - left + 1)/2 * cos(angle_end) + x_centre;
yinter_end = -(bottom - top + 1)/2 * sin(angle_end) + y_centre;
if (angle_start < 0) angle_start += 2 * M_PI;
if (angle_end < 0) angle_end += 2 * M_PI;
if (angle_end < angle_start) angle_end += 2 * M_PI;
bounds.left = min( xinter_start, xinter_end );
bounds.top = min( yinter_start, yinter_end );
bounds.right = max( xinter_start, xinter_end );
bounds.bottom = max( yinter_start, yinter_end );
for (i = 0; i <= 8; i++)
{
if(i * M_PI / 2 < angle_start) /* loop until we're past start */
continue;
if(i * M_PI / 2 > angle_end) /* if we're past end we're finished */
break;
/* the arc touches the rectangle at the start of quadrant i, so adjust
BBox to reflect this. */
switch(i % 4) {
case 0:
bounds.right = right;
break;
case 1:
bounds.top = top;
break;
case 2:
bounds.left = left;
break;
case 3:
bounds.bottom = bottom;
break;
}
}
/* If we're drawing a pie then make sure we include the centre */
if (type == EMR_PIE)
{
if (bounds.left > x_centre) bounds.left = x_centre;
else if (bounds.right < x_centre) bounds.right = x_centre;
if (bounds.top > y_centre) bounds.top = y_centre;
else if (bounds.bottom < y_centre) bounds.bottom = y_centre;
}
else if (type == EMR_ARCTO)
{
POINT pt;
pt = dc->attr->cur_pos;
bounds.left = min( bounds.left, pt.x );
bounds.top = min( bounds.top, pt.y );
bounds.right = max( bounds.right, pt.x );
bounds.bottom = max( bounds.bottom, pt.y );
}
emfdrv_update_bounds( dc, &bounds );
return TRUE;
}
static BOOL CDECL EMFDRV_Arc( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
INT xstart, INT ystart, INT xend, INT yend )
{
return EMFDRV_ArcChordPie( dev, left, top, right, bottom, xstart, ystart,
xend, yend, EMR_ARC );
}
static BOOL CDECL EMFDRV_ArcTo( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
INT xstart, INT ystart, INT xend, INT yend )
{
return EMFDRV_ArcChordPie( dev, left, top, right, bottom, xstart, ystart,
xend, yend, EMR_ARCTO );
}
static BOOL CDECL EMFDRV_Pie( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
INT xstart, INT ystart, INT xend, INT yend )
{
return EMFDRV_ArcChordPie( dev, left, top, right, bottom, xstart, ystart,
xend, yend, EMR_PIE );
}
static BOOL CDECL EMFDRV_Chord( PHYSDEV dev, INT left, INT top, INT right, INT bottom,
INT xstart, INT ystart, INT xend, INT yend )
{
return EMFDRV_ArcChordPie( dev, left, top, right, bottom, xstart, ystart,
xend, yend, EMR_CHORD );
}
static BOOL CDECL EMFDRV_Ellipse( PHYSDEV dev, INT left, INT top, INT right, INT bottom )
{
DC *dc = get_physdev_dc( dev );
RECTL bounds;
if (left == right || top == bottom) return FALSE;
bounds.left = min( left, right );
bounds.top = min( top, bottom );
bounds.right = max( left, right );
bounds.bottom = max( top, bottom );
if (dc->attr->graphics_mode == GM_COMPATIBLE)
{
bounds.right--;
bounds.bottom--;
}
emfdrv_update_bounds( dc, &bounds );
return TRUE;
}
static BOOL EMFDRV_Rectangle( PHYSDEV dev, INT left, INT top, INT right, INT bottom )
{
DC *dc = get_physdev_dc( dev );
RECTL bounds;
if (left == right || top == bottom) return FALSE;
bounds.left = min( left, right );
bounds.top = min( top, bottom );
bounds.right = max( left, right );
bounds.bottom = max( top, bottom );
if (dc->attr->graphics_mode == GM_COMPATIBLE)
{
bounds.right--;
bounds.bottom--;
}
emfdrv_update_bounds( dc, &bounds );
return TRUE;
}
static COLORREF CDECL EMFDRV_SetPixel( PHYSDEV dev, INT x, INT y, COLORREF color )
{
DC *dc = get_physdev_dc( dev );
RECTL bounds;
bounds.left = bounds.right = x;
bounds.top = bounds.bottom = y;
emfdrv_update_bounds( dc, &bounds );
return CLR_INVALID;
}
static BOOL CDECL EMFDRV_PolylineTo( PHYSDEV dev, const POINT *pt, INT count )
{
/* FIXME: update bounding rect */
return TRUE;
}
static BOOL CDECL EMFDRV_PolyBezier( PHYSDEV dev, const POINT *pts, DWORD count )
{
/* FIXME: update bounding rect */
return TRUE;
}
static BOOL CDECL EMFDRV_PolyBezierTo( PHYSDEV dev, const POINT *pts, DWORD count )
{
/* FIXME: update bounding rect */
return TRUE;
}
static BOOL CDECL EMFDRV_PolyPolyline( PHYSDEV dev, const POINT *pt,
const DWORD *counts, UINT polys )
{
/* FIXME: update bounding rect */
return TRUE;
}
static BOOL CDECL EMFDRV_PolyPolygon( PHYSDEV dev, const POINT *pt,
const INT *counts, UINT polys )
{
/* FIXME: update bounding rect */
return TRUE;
}
static BOOL CDECL EMFDRV_PolyDraw( PHYSDEV dev, const POINT *pts,
const BYTE *types, DWORD count )
{
/* FIXME: update bounding rect */
return TRUE;
}
static BOOL CDECL EMFDRV_FillRgn( PHYSDEV dev, HRGN hrgn, HBRUSH hbrush )
{
/* FIXME: update bounding rect */
return TRUE;
}
static BOOL CDECL EMFDRV_FrameRgn( PHYSDEV dev, HRGN hrgn, HBRUSH hbrush, INT width, INT height )
{
/* FIXME: update bounding rect */
return TRUE;
}
static BOOL CDECL EMFDRV_InvertRgn( PHYSDEV dev, HRGN hrgn )
{
/* FIXME: update bounding rect */
return TRUE;
}
static BOOL CDECL EMFDRV_ExtTextOut( PHYSDEV dev, INT x, INT y, UINT flags, const RECT *lprect,
LPCWSTR str, UINT count, const INT *lpDx )
{
/* FIXME: update bounding rect */
return TRUE;
}
static BOOL CDECL EMFDRV_GradientFill( PHYSDEV dev, TRIVERTEX *vert_array, ULONG nvert,
void *grad_array, ULONG ngrad, ULONG mode )
{
/* FIXME: update bounding rect */
return TRUE;
}
static BOOL CDECL EMFDRV_FillPath( PHYSDEV dev )
{
/* FIXME: update bound rect */
return TRUE;
}
static BOOL CDECL EMFDRV_StrokeAndFillPath( PHYSDEV dev )
{
/* FIXME: update bound rect */
return TRUE;
}
static BOOL CDECL EMFDRV_StrokePath( PHYSDEV dev )
{
/* FIXME: update bound rect */
return TRUE;
}
static BOOL CDECL EMFDRV_AlphaBlend( PHYSDEV dev_dst, struct bitblt_coords *dst,
PHYSDEV dev_src, struct bitblt_coords *src,
BLENDFUNCTION func )
{
/* FIXME: update bound rect */
return TRUE;
}
static BOOL CDECL EMFDRV_PatBlt( PHYSDEV dev, struct bitblt_coords *dst, DWORD rop )
{
/* FIXME: update bound rect */
return TRUE;
}
static INT CDECL EMFDRV_StretchDIBits( PHYSDEV dev, INT x_dst, INT y_dst, INT width_dst,
INT height_dst, INT x_src, INT y_src, INT width_src,
INT height_src, const void *bits, BITMAPINFO *info,
UINT wUsage, DWORD dwRop )
{
/* FIXME: Update bound rect */
return height_src;
}
static INT CDECL EMFDRV_SetDIBitsToDevice( PHYSDEV dev, INT x_dst, INT y_dst, DWORD width,
DWORD height, INT x_src, INT y_src, UINT startscan,
UINT lines, const void *bits, BITMAPINFO *info,
UINT usage )
{
/* FIXME: Update bound rect */
return lines;
}
static HBITMAP CDECL EMFDRV_SelectBitmap( PHYSDEV dev, HBITMAP hbitmap )
{
return 0;
}
static HFONT CDECL EMFDRV_SelectFont( PHYSDEV dev, HFONT font, UINT *aa_flags )
{
*aa_flags = GGO_BITMAP; /* no point in anti-aliasing on metafiles */
dev = GET_NEXT_PHYSDEV( dev, pSelectFont );
return dev->funcs->pSelectFont( dev, font, aa_flags );
}
static INT CDECL EMFDRV_GetDeviceCaps( PHYSDEV dev, INT cap )
{
EMFDRV_PDEVICE *physDev = get_emf_physdev( dev );
if (cap >= 0 && cap < ARRAY_SIZE( physDev->dev_caps ))
return physDev->dev_caps[cap];
return 0;
}
static BOOL CDECL EMFDRV_DeleteDC( PHYSDEV dev )
{
EMFDRV_PDEVICE *physDev = get_emf_physdev( dev );
HeapFree( GetProcessHeap(), 0, physDev );
return TRUE;
}
static const struct gdi_dc_funcs emfdrv_driver =
{
NULL, /* pAbortDoc */
NULL, /* pAbortPath */
EMFDRV_AlphaBlend, /* pAlphaBlend */
NULL, /* pAngleArc */
EMFDRV_Arc, /* pArc */
EMFDRV_ArcTo, /* pArcTo */
NULL, /* pBeginPath */
NULL, /* pBlendImage */
EMFDRV_Chord, /* pChord */
NULL, /* pCloseFigure */
NULL, /* pCreateCompatibleDC */
NULL, /* pCreateDC */
EMFDRV_DeleteDC, /* pDeleteDC */
NULL, /* pDeleteObject */
NULL, /* pDeviceCapabilities */
EMFDRV_Ellipse, /* pEllipse */
NULL, /* pEndDoc */
NULL, /* pEndPage */
NULL, /* pEndPath */
NULL, /* pEnumFonts */
NULL, /* pEnumICMProfiles */
NULL, /* pExtDeviceMode */
NULL, /* pExtEscape */
NULL, /* pExtFloodFill */
EMFDRV_ExtTextOut, /* pExtTextOut */
EMFDRV_FillPath, /* pFillPath */
EMFDRV_FillRgn, /* pFillRgn */
NULL, /* pFontIsLinked */
EMFDRV_FrameRgn, /* pFrameRgn */
NULL, /* pGetBoundsRect */
NULL, /* pGetCharABCWidths */
NULL, /* pGetCharABCWidthsI */
NULL, /* pGetCharWidth */
NULL, /* pGetCharWidthInfo */
EMFDRV_GetDeviceCaps, /* pGetDeviceCaps */
NULL, /* pGetDeviceGammaRamp */
NULL, /* pGetFontData */
NULL, /* pGetFontRealizationInfo */
NULL, /* pGetFontUnicodeRanges */
NULL, /* pGetGlyphIndices */
NULL, /* pGetGlyphOutline */
NULL, /* pGetICMProfile */
NULL, /* pGetImage */
NULL, /* pGetKerningPairs */
NULL, /* pGetNearestColor */
NULL, /* pGetOutlineTextMetrics */
NULL, /* pGetPixel */
NULL, /* pGetSystemPaletteEntries */
NULL, /* pGetTextCharsetInfo */
NULL, /* pGetTextExtentExPoint */
NULL, /* pGetTextExtentExPointI */
NULL, /* pGetTextFace */
NULL, /* pGetTextMetrics */
EMFDRV_GradientFill, /* pGradientFill */
EMFDRV_InvertRgn, /* pInvertRgn */
EMFDRV_LineTo, /* pLineTo */
NULL, /* pMoveTo */
NULL, /* pPaintRgn */
EMFDRV_PatBlt, /* pPatBlt */
EMFDRV_Pie, /* pPie */
EMFDRV_PolyBezier, /* pPolyBezier */
EMFDRV_PolyBezierTo, /* pPolyBezierTo */
EMFDRV_PolyDraw, /* pPolyDraw */
EMFDRV_PolyPolygon, /* pPolyPolygon */
EMFDRV_PolyPolyline, /* pPolyPolyline */
EMFDRV_PolylineTo, /* pPolylineTo */
NULL, /* pPutImage */
NULL, /* pRealizeDefaultPalette */
NULL, /* pRealizePalette */
EMFDRV_Rectangle, /* pRectangle */
NULL, /* pResetDC */
EMFDRV_RoundRect, /* pRoundRect */
EMFDRV_SelectBitmap, /* pSelectBitmap */
NULL, /* pSelectBrush */
EMFDRV_SelectFont, /* pSelectFont */
NULL, /* pSelectPen */
NULL, /* pSetBkColor */
NULL, /* pSetBoundsRect */
NULL, /* pSetDCBrushColor*/
NULL, /* pSetDCPenColor*/
EMFDRV_SetDIBitsToDevice, /* pSetDIBitsToDevice */
NULL, /* pSetDeviceClipping */
NULL, /* pSetDeviceGammaRamp */
EMFDRV_SetPixel, /* pSetPixel */
NULL, /* pSetTextColor */
NULL, /* pStartDoc */
NULL, /* pStartPage */
NULL, /* pStretchBlt */
EMFDRV_StretchDIBits, /* pStretchDIBits */
EMFDRV_StrokeAndFillPath, /* pStrokeAndFillPath */
EMFDRV_StrokePath, /* pStrokePath */
NULL, /* pUnrealizePalette */
NULL, /* pD3DKMTCheckVidPnExclusiveOwnership */
NULL, /* pD3DKMTSetVidPnSourceOwner */
NULL, /* wine_get_wgl_driver */
NULL, /* wine_get_vulkan_driver */
GDI_PRIORITY_GRAPHICS_DRV /* priority */
};
static BOOL devcap_is_valid( int cap )
{
if (cap >= 0 && cap <= ASPECTXY) return !(cap & 1);
if (cap >= PHYSICALWIDTH && cap <= COLORMGMTCAPS) return TRUE;
switch (cap)
{
case LOGPIXELSX:
case LOGPIXELSY:
case CAPS1:
case SIZEPALETTE:
case NUMRESERVED:
case COLORRES:
return TRUE;
}
return FALSE;
}
/**********************************************************************
* NtGdiCreateMetafileDC (win32u.@)
*/
HDC WINAPI NtGdiCreateMetafileDC( HDC hdc )
{
EMFDRV_PDEVICE *physDev;
HDC ref_dc, ret;
int cap;
DC *dc;
if (!(dc = alloc_dc_ptr( NTGDI_OBJ_ENHMETADC ))) return 0;
physDev = HeapAlloc( GetProcessHeap(), 0, sizeof(*physDev) );
if (!physDev)
{
free_dc_ptr( dc );
return 0;
}
push_dc_driver( &dc->physDev, &physDev->dev, &emfdrv_driver );
if (hdc) /* if no ref, use current display */
ref_dc = hdc;
else
ref_dc = CreateDCW( L"DISPLAY", NULL, NULL, NULL );
memset( physDev->dev_caps, 0, sizeof(physDev->dev_caps) );
for (cap = 0; cap < ARRAY_SIZE( physDev->dev_caps ); cap++)
if (devcap_is_valid( cap ))
physDev->dev_caps[cap] = NtGdiGetDeviceCaps( ref_dc, cap );
if (!hdc) NtGdiDeleteObjectApp( ref_dc );
NtGdiSetVirtualResolution( dc->hSelf, 0, 0, 0, 0 );
ret = dc->hSelf;
release_dc_ptr( dc );
return ret;
}