Sweden-Number/dlls/gdi32/dibdrv/dc.c

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/*
* DIB driver initialization and DC functions.
*
* Copyright 2011 Huw Davies
*
* 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 <assert.h>
#include "gdi_private.h"
#include "dibdrv.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(dib);
static const DWORD bit_fields_888[3] = {0xff0000, 0x00ff00, 0x0000ff};
static const DWORD bit_fields_555[3] = {0x7c00, 0x03e0, 0x001f};
static void calc_shift_and_len(DWORD mask, int *shift, int *len)
{
int s, l;
if(!mask)
{
*shift = *len = 0;
return;
}
s = 0;
while ((mask & 1) == 0)
{
mask >>= 1;
s++;
}
l = 0;
while ((mask & 1) == 1)
{
mask >>= 1;
l++;
}
*shift = s;
*len = l;
}
static void init_bit_fields(dib_info *dib, const DWORD *bit_fields)
{
dib->red_mask = bit_fields[0];
dib->green_mask = bit_fields[1];
dib->blue_mask = bit_fields[2];
calc_shift_and_len(dib->red_mask, &dib->red_shift, &dib->red_len);
calc_shift_and_len(dib->green_mask, &dib->green_shift, &dib->green_len);
calc_shift_and_len(dib->blue_mask, &dib->blue_shift, &dib->blue_len);
}
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static BOOL init_dib_info(dib_info *dib, const BITMAPINFOHEADER *bi, const DWORD *bit_fields,
RGBQUAD *color_table, int color_table_size, void *bits, enum dib_info_flags flags)
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{
dib->bit_count = bi->biBitCount;
dib->width = bi->biWidth;
dib->height = bi->biHeight;
dib->stride = get_dib_stride( dib->width, dib->bit_count );
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dib->bits = bits;
dib->ptr_to_free = NULL;
dib->flags = flags;
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if(dib->height < 0) /* top-down */
{
dib->height = -dib->height;
}
else /* bottom-up */
{
/* bits always points to the top-left corner and the stride is -ve */
dib->bits = (BYTE*)dib->bits + (dib->height - 1) * dib->stride;
dib->stride = -dib->stride;
}
dib->funcs = &funcs_null;
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switch(dib->bit_count)
{
case 32:
if(bi->biCompression == BI_RGB)
bit_fields = bit_fields_888;
init_bit_fields(dib, bit_fields);
if(dib->red_mask == 0xff0000 && dib->green_mask == 0x00ff00 && dib->blue_mask == 0x0000ff)
dib->funcs = &funcs_8888;
else
dib->funcs = &funcs_32;
break;
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case 24:
dib->funcs = &funcs_24;
break;
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case 16:
if(bi->biCompression == BI_RGB)
bit_fields = bit_fields_555;
init_bit_fields(dib, bit_fields);
if(dib->red_mask == 0x7c00 && dib->green_mask == 0x03e0 && dib->blue_mask == 0x001f)
dib->funcs = &funcs_555;
else
dib->funcs = &funcs_16;
break;
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case 8:
dib->funcs = &funcs_8;
break;
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case 4:
dib->funcs = &funcs_4;
break;
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case 1:
dib->funcs = &funcs_1;
break;
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default:
TRACE("bpp %d not supported, will forward to graphics driver.\n", dib->bit_count);
return FALSE;
}
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if(color_table)
{
if (flags & private_color_table)
{
dib->color_table = HeapAlloc(GetProcessHeap(), 0, color_table_size * sizeof(dib->color_table[0]));
if(!dib->color_table) return FALSE;
memcpy(dib->color_table, color_table, color_table_size * sizeof(color_table[0]));
}
else
dib->color_table = color_table;
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dib->color_table_size = color_table_size;
}
else
{
dib->color_table = NULL;
dib->color_table_size = 0;
}
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return TRUE;
}
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BOOL init_dib_info_from_packed(dib_info *dib, const BITMAPINFOHEADER *bi, WORD usage, HPALETTE palette)
{
DWORD *masks = NULL;
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RGBQUAD *color_table = NULL, pal_table[256];
BYTE *ptr = (BYTE*)bi + bi->biSize;
int num_colors = get_dib_num_of_colors( (const BITMAPINFO *)bi );
if(bi->biCompression == BI_BITFIELDS)
{
masks = (DWORD *)ptr;
ptr += 3 * sizeof(DWORD);
}
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if(num_colors)
{
if(usage == DIB_PAL_COLORS)
{
PALETTEENTRY entries[256];
const WORD *index = (const WORD*) ptr;
UINT i, count = GetPaletteEntries( palette, 0, num_colors, entries );
for (i = 0; i < num_colors; i++, index++)
{
PALETTEENTRY *entry = &entries[*index % count];
pal_table[i].rgbRed = entry->peRed;
pal_table[i].rgbGreen = entry->peGreen;
pal_table[i].rgbBlue = entry->peBlue;
pal_table[i].rgbReserved = 0;
}
color_table = pal_table;
ptr += num_colors * sizeof(WORD);
}
else
{
color_table = (RGBQUAD*)ptr;
ptr += num_colors * sizeof(*color_table);
}
}
return init_dib_info(dib, bi, masks, color_table, num_colors, ptr, private_color_table);
}
BOOL init_dib_info_from_bitmapinfo(dib_info *dib, const BITMAPINFO *info, void *bits, enum dib_info_flags flags)
{
unsigned int colors = get_dib_num_of_colors( info );
void *colorptr = (char *)&info->bmiHeader + info->bmiHeader.biSize;
const DWORD *bitfields = (info->bmiHeader.biCompression == BI_BITFIELDS) ? (DWORD *)colorptr : NULL;
return init_dib_info( dib, &info->bmiHeader, bitfields, colors ? colorptr : NULL, colors, bits, flags );
}
static void clear_dib_info(dib_info *dib)
{
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dib->color_table = NULL;
dib->bits = NULL;
dib->ptr_to_free = NULL;
}
/**********************************************************************
* free_dib_info
*
* Free the resources associated with a dib and optionally the bits
*/
void free_dib_info(dib_info *dib)
{
if (dib->flags & private_color_table)
HeapFree(GetProcessHeap(), 0, dib->color_table);
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dib->color_table = NULL;
HeapFree(GetProcessHeap(), 0, dib->ptr_to_free);
dib->ptr_to_free = NULL;
dib->bits = NULL;
}
void copy_dib_color_info(dib_info *dst, const dib_info *src)
{
dst->bit_count = src->bit_count;
dst->red_mask = src->red_mask;
dst->green_mask = src->green_mask;
dst->blue_mask = src->blue_mask;
dst->red_len = src->red_len;
dst->green_len = src->green_len;
dst->blue_len = src->blue_len;
dst->red_shift = src->red_shift;
dst->green_shift = src->green_shift;
dst->blue_shift = src->blue_shift;
dst->funcs = src->funcs;
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dst->color_table_size = src->color_table_size;
dst->color_table = NULL;
dst->flags = src->flags;
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if(dst->color_table_size)
{
int size = dst->color_table_size * sizeof(dst->color_table[0]);
if (dst->flags & private_color_table)
{
dst->color_table = HeapAlloc(GetProcessHeap(), 0, size);
memcpy(dst->color_table, src->color_table, size);
}
else
dst->color_table = src->color_table;
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}
}
DWORD convert_bitmapinfo( const BITMAPINFO *src_info, void *src_bits, const RECT *src_rect,
const BITMAPINFO *dst_info, void *dst_bits )
{
dib_info src_dib, dst_dib;
DWORD ret;
if ( !init_dib_info_from_bitmapinfo( &src_dib, src_info, src_bits, 0 ) )
return ERROR_BAD_FORMAT;
if ( !init_dib_info_from_bitmapinfo( &dst_dib, dst_info, dst_bits, 0 ) )
return ERROR_BAD_FORMAT;
ret = dst_dib.funcs->convert_to( &dst_dib, &src_dib, src_rect );
/* We shared the color tables, so there's no need to free the dib_infos here */
if(!ret) return ERROR_BAD_FORMAT;
return ERROR_SUCCESS;
}
static void update_fg_colors( dibdrv_physdev *pdev )
{
pdev->pen_color = get_fg_color( pdev, pdev->pen_colorref );
pdev->brush_color = get_fg_color( pdev, pdev->brush_colorref );
}
static void update_masks( dibdrv_physdev *pdev, INT rop )
{
calc_and_xor_masks( rop, pdev->pen_color, &pdev->pen_and, &pdev->pen_xor );
update_brush_rop( pdev, rop );
if( GetBkMode( pdev->dev.hdc ) == OPAQUE )
calc_and_xor_masks( rop, pdev->bkgnd_color, &pdev->bkgnd_and, &pdev->bkgnd_xor );
}
/***********************************************************************
* dibdrv_DeleteDC
*/
static BOOL dibdrv_DeleteDC( PHYSDEV dev )
{
dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
TRACE("(%p)\n", dev);
DeleteObject(pdev->clip);
free_pattern_brush(pdev);
free_dib_info(&pdev->dib);
return 0;
}
/***********************************************************************
* dibdrv_GetImage
*/
static DWORD dibdrv_GetImage( PHYSDEV dev, HBITMAP hbitmap, BITMAPINFO *info,
struct gdi_image_bits *bits, struct bitblt_coords *src )
{
TRACE( "%p %p %p\n", dev, hbitmap, info );
info->bmiHeader.biSize = sizeof(info->bmiHeader);
info->bmiHeader.biPlanes = 1;
info->bmiHeader.biCompression = BI_RGB;
info->bmiHeader.biXPelsPerMeter = 0;
info->bmiHeader.biYPelsPerMeter = 0;
info->bmiHeader.biClrUsed = 0;
info->bmiHeader.biClrImportant = 0;
if (hbitmap)
{
BITMAPOBJ *bmp = GDI_GetObjPtr( hbitmap, OBJ_BITMAP );
if (!bmp) return ERROR_INVALID_HANDLE;
assert(bmp->dib);
info->bmiHeader.biWidth = bmp->dib->dsBmih.biWidth;
info->bmiHeader.biHeight = bmp->dib->dsBmih.biHeight;
info->bmiHeader.biBitCount = bmp->dib->dsBmih.biBitCount;
info->bmiHeader.biSizeImage = get_dib_image_size( (BITMAPINFO *)&bmp->dib->dsBmih );
switch (info->bmiHeader.biBitCount)
{
case 1:
case 4:
case 8:
if (bmp->color_table)
{
info->bmiHeader.biClrUsed = min( bmp->nb_colors, 1 << info->bmiHeader.biBitCount );
memcpy( info->bmiColors, bmp->color_table, info->bmiHeader.biClrUsed * sizeof(RGBQUAD) );
}
break;
case 16:
if (bmp->dib->dsBmih.biCompression == BI_BITFIELDS &&
memcmp( bmp->dib->dsBitfields, bit_fields_555, sizeof(bmp->dib->dsBitfields) ))
{
info->bmiHeader.biCompression = BI_BITFIELDS;
memcpy( info->bmiColors, bmp->dib->dsBitfields, sizeof(bmp->dib->dsBitfields) );
}
break;
case 32:
if (bmp->dib->dsBmih.biCompression == BI_BITFIELDS &&
memcmp( bmp->dib->dsBitfields, bit_fields_888, sizeof(bmp->dib->dsBitfields) ))
{
info->bmiHeader.biCompression = BI_BITFIELDS;
memcpy( info->bmiColors, bmp->dib->dsBitfields, sizeof(bmp->dib->dsBitfields) );
}
break;
}
if (bits)
{
bits->ptr = bmp->dib->dsBm.bmBits;
bits->is_copy = FALSE;
bits->free = NULL;
}
GDI_ReleaseObj( hbitmap );
}
else
{
dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
info->bmiHeader.biWidth = pdev->dib.width;
info->bmiHeader.biHeight = pdev->dib.stride > 0 ? -pdev->dib.height : pdev->dib.height;
info->bmiHeader.biBitCount = pdev->dib.bit_count;
info->bmiHeader.biSizeImage = pdev->dib.height * abs(pdev->dib.stride);
switch (info->bmiHeader.biBitCount)
{
case 1:
case 4:
case 8:
if (pdev->dib.color_table)
{
info->bmiHeader.biClrUsed = min( pdev->dib.color_table_size, 1 << pdev->dib.bit_count );
memcpy( info->bmiColors, pdev->dib.color_table,
info->bmiHeader.biClrUsed * sizeof(RGBQUAD) );
}
break;
case 16:
if (pdev->dib.funcs != &funcs_555)
{
DWORD *masks = (DWORD *)info->bmiColors;
masks[0] = pdev->dib.red_mask;
masks[1] = pdev->dib.green_mask;
masks[2] = pdev->dib.blue_mask;
info->bmiHeader.biCompression = BI_BITFIELDS;
}
break;
case 32:
if (pdev->dib.funcs != &funcs_8888)
{
DWORD *masks = (DWORD *)info->bmiColors;
masks[0] = pdev->dib.red_mask;
masks[1] = pdev->dib.green_mask;
masks[2] = pdev->dib.blue_mask;
info->bmiHeader.biCompression = BI_BITFIELDS;
}
break;
}
if (bits)
{
bits->ptr = pdev->dib.bits;
if (pdev->dib.stride < 0)
bits->ptr = (char *)bits->ptr + (pdev->dib.height - 1) * pdev->dib.stride;
bits->is_copy = FALSE;
bits->free = NULL;
}
}
return ERROR_SUCCESS;
}
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/***********************************************************************
* dibdrv_SelectBitmap
*/
static HBITMAP dibdrv_SelectBitmap( PHYSDEV dev, HBITMAP bitmap )
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{
PHYSDEV next = GET_NEXT_PHYSDEV( dev, pSelectBitmap );
dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
BITMAPOBJ *bmp = GDI_GetObjPtr( bitmap, OBJ_BITMAP );
TRACE("(%p, %p)\n", dev, bitmap);
if (!bmp) return 0;
assert(bmp->dib);
pdev->clip = CreateRectRgn(0, 0, 0, 0);
pdev->defer = 0;
clear_dib_info(&pdev->dib);
clear_dib_info(&pdev->brush_dib);
pdev->brush_and_bits = pdev->brush_xor_bits = NULL;
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if(!init_dib_info(&pdev->dib, &bmp->dib->dsBmih, bmp->dib->dsBitfields,
bmp->color_table, bmp->nb_colors, bmp->dib->dsBm.bmBits, private_color_table))
pdev->defer |= DEFER_FORMAT;
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GDI_ReleaseObj( bitmap );
return next->funcs->pSelectBitmap( next, bitmap );
}
/***********************************************************************
* dibdrv_SetBkColor
*/
static COLORREF dibdrv_SetBkColor( PHYSDEV dev, COLORREF color )
{
PHYSDEV next = GET_NEXT_PHYSDEV( dev, pSetBkColor );
dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
pdev->bkgnd_color = pdev->dib.funcs->colorref_to_pixel( &pdev->dib, color );
if( GetBkMode(dev->hdc) == OPAQUE )
calc_and_xor_masks( GetROP2(dev->hdc), pdev->bkgnd_color, &pdev->bkgnd_and, &pdev->bkgnd_xor );
else
{
pdev->bkgnd_and = ~0u;
pdev->bkgnd_xor = 0;
}
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update_fg_colors( pdev ); /* Only needed in the 1 bpp case */
return next->funcs->pSetBkColor( next, color );
}
/***********************************************************************
* dibdrv_SetBkMode
*/
static INT dibdrv_SetBkMode( PHYSDEV dev, INT mode )
{
PHYSDEV next = GET_NEXT_PHYSDEV( dev, pSetBkMode );
dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
if( mode == OPAQUE )
calc_and_xor_masks( GetROP2(dev->hdc), pdev->bkgnd_color, &pdev->bkgnd_and, &pdev->bkgnd_xor );
else
{
pdev->bkgnd_and = ~0u;
pdev->bkgnd_xor = 0;
}
return next->funcs->pSetBkMode( next, mode );
}
/***********************************************************************
* dibdrv_SetDeviceClipping
*/
static void dibdrv_SetDeviceClipping( PHYSDEV dev, HRGN vis_rgn, HRGN clip_rgn )
{
PHYSDEV next = GET_NEXT_PHYSDEV( dev, pSetDeviceClipping );
dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
TRACE("(%p, %p, %p)\n", dev, vis_rgn, clip_rgn);
CombineRgn( pdev->clip, vis_rgn, clip_rgn, clip_rgn ? RGN_AND : RGN_COPY );
return next->funcs->pSetDeviceClipping( next, vis_rgn, clip_rgn);
}
/***********************************************************************
* dibdrv_SetDIBColorTable
*/
static UINT dibdrv_SetDIBColorTable( PHYSDEV dev, UINT pos, UINT count, const RGBQUAD *colors )
{
PHYSDEV next = GET_NEXT_PHYSDEV( dev, pSetDIBColorTable );
dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
TRACE("(%p, %d, %d, %p)\n", dev, pos, count, colors);
if( pdev->dib.color_table && pos < pdev->dib.color_table_size )
{
if( pos + count > pdev->dib.color_table_size ) count = pdev->dib.color_table_size - pos;
memcpy( pdev->dib.color_table + pos, colors, count * sizeof(RGBQUAD) );
pdev->bkgnd_color = pdev->dib.funcs->colorref_to_pixel( &pdev->dib, GetBkColor( dev->hdc ) );
update_fg_colors( pdev );
update_masks( pdev, GetROP2( dev->hdc ) );
}
return next->funcs->pSetDIBColorTable( next, pos, count, colors );
}
/***********************************************************************
* dibdrv_SetROP2
*/
static INT dibdrv_SetROP2( PHYSDEV dev, INT rop )
{
PHYSDEV next = GET_NEXT_PHYSDEV( dev, pSetROP2 );
dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
update_masks( pdev, rop );
return next->funcs->pSetROP2( next, rop );
}
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const DC_FUNCTIONS dib_driver =
{
NULL, /* pAbortDoc */
NULL, /* pAbortPath */
NULL, /* pAlphaBlend */
NULL, /* pAngleArc */
NULL, /* pArc */
NULL, /* pArcTo */
NULL, /* pBeginPath */
NULL, /* pChoosePixelFormat */
NULL, /* pChord */
NULL, /* pCloseFigure */
NULL, /* pCreateBitmap */
NULL, /* pCreateDC */
NULL, /* pCreateDIBSection */
NULL, /* pDeleteBitmap */
dibdrv_DeleteDC, /* pDeleteDC */
NULL, /* pDeleteObject */
NULL, /* pDescribePixelFormat */
NULL, /* pDeviceCapabilities */
NULL, /* pEllipse */
NULL, /* pEndDoc */
NULL, /* pEndPage */
NULL, /* pEndPath */
NULL, /* pEnumDeviceFonts */
NULL, /* pEnumICMProfiles */
NULL, /* pExcludeClipRect */
NULL, /* pExtDeviceMode */
NULL, /* pExtEscape */
NULL, /* pExtFloodFill */
NULL, /* pExtSelectClipRgn */
NULL, /* pExtTextOut */
NULL, /* pFillPath */
NULL, /* pFillRgn */
NULL, /* pFlattenPath */
NULL, /* pFrameRgn */
NULL, /* pGdiComment */
NULL, /* pGetCharWidth */
NULL, /* pGetDeviceCaps */
NULL, /* pGetDeviceGammaRamp */
NULL, /* pGetICMProfile */
dibdrv_GetImage, /* pGetImage */
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NULL, /* pGetNearestColor */
NULL, /* pGetPixel */
NULL, /* pGetPixelFormat */
NULL, /* pGetSystemPaletteEntries */
NULL, /* pGetTextExtentExPoint */
NULL, /* pGetTextMetrics */
NULL, /* pIntersectClipRect */
NULL, /* pInvertRgn */
dibdrv_LineTo, /* pLineTo */
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NULL, /* pModifyWorldTransform */
NULL, /* pMoveTo */
NULL, /* pOffsetClipRgn */
NULL, /* pOffsetViewportOrg */
NULL, /* pOffsetWindowOrg */
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dibdrv_PaintRgn, /* pPaintRgn */
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dibdrv_PatBlt, /* pPatBlt */
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NULL, /* pPie */
NULL, /* pPolyBezier */
NULL, /* pPolyBezierTo */
NULL, /* pPolyDraw */
NULL, /* pPolyPolygon */
NULL, /* pPolyPolyline */
NULL, /* pPolygon */
NULL, /* pPolyline */
NULL, /* pPolylineTo */
NULL, /* pPutImage */
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NULL, /* pRealizeDefaultPalette */
NULL, /* pRealizePalette */
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dibdrv_Rectangle, /* pRectangle */
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NULL, /* pResetDC */
NULL, /* pRestoreDC */
NULL, /* pRoundRect */
NULL, /* pSaveDC */
NULL, /* pScaleViewportExt */
NULL, /* pScaleWindowExt */
dibdrv_SelectBitmap, /* pSelectBitmap */
dibdrv_SelectBrush, /* pSelectBrush */
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NULL, /* pSelectClipPath */
NULL, /* pSelectFont */
NULL, /* pSelectPalette */
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dibdrv_SelectPen, /* pSelectPen */
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NULL, /* pSetArcDirection */
NULL, /* pSetBitmapBits */
dibdrv_SetBkColor, /* pSetBkColor */
dibdrv_SetBkMode, /* pSetBkMode */
dibdrv_SetDCBrushColor, /* pSetDCBrushColor */
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dibdrv_SetDCPenColor, /* pSetDCPenColor */
dibdrv_SetDIBColorTable, /* pSetDIBColorTable */
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NULL, /* pSetDIBitsToDevice */
dibdrv_SetDeviceClipping, /* pSetDeviceClipping */
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NULL, /* pSetDeviceGammaRamp */
NULL, /* pSetLayout */
NULL, /* pSetMapMode */
NULL, /* pSetMapperFlags */
NULL, /* pSetPixel */
NULL, /* pSetPixelFormat */
NULL, /* pSetPolyFillMode */
dibdrv_SetROP2, /* pSetROP2 */
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NULL, /* pSetRelAbs */
NULL, /* pSetStretchBltMode */
NULL, /* pSetTextAlign */
NULL, /* pSetTextCharacterExtra */
NULL, /* pSetTextColor */
NULL, /* pSetTextJustification */
NULL, /* pSetViewportExt */
NULL, /* pSetViewportOrg */
NULL, /* pSetWindowExt */
NULL, /* pSetWindowOrg */
NULL, /* pSetWorldTransform */
NULL, /* pStartDoc */
NULL, /* pStartPage */
NULL, /* pStretchBlt */
NULL, /* pStretchDIBits */
NULL, /* pStrokeAndFillPath */
NULL, /* pStrokePath */
NULL, /* pSwapBuffers */
NULL, /* pUnrealizePalette */
NULL, /* pWidenPath */
NULL, /* pwglCopyContext */
NULL, /* pwglCreateContext */
NULL, /* pwglCreateContextAttribsARB */
NULL, /* pwglDeleteContext */
NULL, /* pwglGetPbufferDCARB */
NULL, /* pwglGetProcAddress */
2011-04-01 16:27:48 +02:00
NULL, /* pwglMakeContextCurrentARB */
NULL, /* pwglMakeCurrent */
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NULL, /* pwglSetPixelFormatWINE */
NULL, /* pwglShareLists */
NULL, /* pwglUseFontBitmapsA */
NULL /* pwglUseFontBitmapsW */
};