2011-04-01 16:27:48 +02:00
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/*
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* DIB driver initialization and DC functions.
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*
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* Copyright 2011 Huw Davies
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <assert.h>
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#include "gdi_private.h"
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#include "dibdrv.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(dib);
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/***********************************************************************
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* dibdrv_DeleteDC
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*/
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static BOOL CDECL dibdrv_DeleteDC( PHYSDEV dev )
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{
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TRACE("(%p)\n", dev);
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return 0;
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}
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2011-04-05 14:26:08 +02:00
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static void calc_shift_and_len(DWORD mask, int *shift, int *len)
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{
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int s, l;
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s = 0;
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while ((mask & 1) == 0)
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{
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mask >>= 1;
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s++;
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}
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l = 0;
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while ((mask & 1) == 1)
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{
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mask >>= 1;
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l++;
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}
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*shift = s;
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*len = l;
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}
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2011-04-05 14:23:20 +02:00
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static void init_bit_fields(dib_info *dib, const DWORD *bit_fields)
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{
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dib->red_mask = bit_fields[0];
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dib->green_mask = bit_fields[1];
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dib->blue_mask = bit_fields[2];
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2011-04-05 14:26:08 +02:00
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calc_shift_and_len(dib->red_mask, &dib->red_shift, &dib->red_len);
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calc_shift_and_len(dib->green_mask, &dib->green_shift, &dib->green_len);
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calc_shift_and_len(dib->blue_mask, &dib->blue_shift, &dib->blue_len);
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2011-04-05 14:23:20 +02:00
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}
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2011-04-01 16:27:48 +02:00
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static BOOL init_dib(dib_info *dib, const BITMAPINFOHEADER *bi, const DWORD *bit_fields, void *bits)
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{
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dib->bit_count = bi->biBitCount;
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dib->width = bi->biWidth;
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dib->height = bi->biHeight;
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dib->stride = ((dib->width * dib->bit_count + 31) >> 3) & ~3;
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dib->bits = bits;
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if(dib->height < 0) /* top-down */
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{
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dib->height = -dib->height;
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}
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else /* bottom-up */
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{
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/* bits always points to the top-left corner and the stride is -ve */
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dib->bits = (BYTE*)dib->bits + (dib->height - 1) * dib->stride;
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dib->stride = -dib->stride;
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}
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2011-04-05 14:23:20 +02:00
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dib->funcs = &funcs_null;
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2011-04-01 16:27:48 +02:00
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switch(dib->bit_count)
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{
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2011-04-05 14:23:20 +02:00
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case 32:
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init_bit_fields(dib, bit_fields);
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if(dib->red_mask == 0xff0000 && dib->green_mask == 0x00ff00 && dib->blue_mask == 0x0000ff)
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dib->funcs = &funcs_8888;
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else
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2011-04-05 14:26:08 +02:00
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dib->funcs = &funcs_32;
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2011-04-05 14:23:20 +02:00
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break;
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2011-04-01 16:27:48 +02:00
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default:
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TRACE("bpp %d not supported, will forward to graphics driver.\n", dib->bit_count);
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return FALSE;
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}
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return TRUE;
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}
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/***********************************************************************
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* dibdrv_SelectBitmap
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*/
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static HBITMAP CDECL dibdrv_SelectBitmap( PHYSDEV dev, HBITMAP bitmap )
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{
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PHYSDEV next = GET_NEXT_PHYSDEV( dev, pSelectBitmap );
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dibdrv_physdev *pdev = get_dibdrv_pdev(dev);
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BITMAPOBJ *bmp = GDI_GetObjPtr( bitmap, OBJ_BITMAP );
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TRACE("(%p, %p)\n", dev, bitmap);
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if (!bmp) return 0;
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assert(bmp->dib);
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init_dib(&pdev->dib, &bmp->dib->dsBmih, bmp->dib->dsBitfields, bmp->dib->dsBm.bmBits);
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GDI_ReleaseObj( bitmap );
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return next->funcs->pSelectBitmap( next, bitmap );
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}
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const DC_FUNCTIONS dib_driver =
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{
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NULL, /* pAbortDoc */
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NULL, /* pAbortPath */
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NULL, /* pAlphaBlend */
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NULL, /* pAngleArc */
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NULL, /* pArc */
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NULL, /* pArcTo */
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NULL, /* pBeginPath */
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NULL, /* pChoosePixelFormat */
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NULL, /* pChord */
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NULL, /* pCloseFigure */
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NULL, /* pCreateBitmap */
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NULL, /* pCreateDC */
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NULL, /* pCreateDIBSection */
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NULL, /* pDeleteBitmap */
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dibdrv_DeleteDC, /* pDeleteDC */
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NULL, /* pDeleteObject */
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NULL, /* pDescribePixelFormat */
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NULL, /* pDeviceCapabilities */
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NULL, /* pEllipse */
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NULL, /* pEndDoc */
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NULL, /* pEndPage */
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NULL, /* pEndPath */
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NULL, /* pEnumDeviceFonts */
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NULL, /* pEnumICMProfiles */
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NULL, /* pExcludeClipRect */
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NULL, /* pExtDeviceMode */
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NULL, /* pExtEscape */
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NULL, /* pExtFloodFill */
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NULL, /* pExtSelectClipRgn */
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NULL, /* pExtTextOut */
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NULL, /* pFillPath */
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NULL, /* pFillRgn */
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NULL, /* pFlattenPath */
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NULL, /* pFrameRgn */
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NULL, /* pGdiComment */
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NULL, /* pGetBitmapBits */
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NULL, /* pGetCharWidth */
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NULL, /* pGetDIBits */
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NULL, /* pGetDeviceCaps */
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NULL, /* pGetDeviceGammaRamp */
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NULL, /* pGetICMProfile */
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NULL, /* pGetNearestColor */
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NULL, /* pGetPixel */
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NULL, /* pGetPixelFormat */
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NULL, /* pGetSystemPaletteEntries */
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NULL, /* pGetTextExtentExPoint */
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NULL, /* pGetTextMetrics */
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NULL, /* pIntersectClipRect */
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NULL, /* pInvertRgn */
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NULL, /* pLineTo */
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NULL, /* pModifyWorldTransform */
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NULL, /* pMoveTo */
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NULL, /* pOffsetClipRgn */
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NULL, /* pOffsetViewportOrg */
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NULL, /* pOffsetWindowOrg */
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NULL, /* pPaintRgn */
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NULL, /* pPatBlt */
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NULL, /* pPie */
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NULL, /* pPolyBezier */
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NULL, /* pPolyBezierTo */
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NULL, /* pPolyDraw */
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NULL, /* pPolyPolygon */
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NULL, /* pPolyPolyline */
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NULL, /* pPolygon */
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NULL, /* pPolyline */
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NULL, /* pPolylineTo */
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NULL, /* pRealizeDefaultPalette */
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NULL, /* pRealizePalette */
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NULL, /* pRectangle */
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NULL, /* pResetDC */
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NULL, /* pRestoreDC */
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NULL, /* pRoundRect */
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NULL, /* pSaveDC */
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NULL, /* pScaleViewportExt */
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NULL, /* pScaleWindowExt */
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dibdrv_SelectBitmap, /* pSelectBitmap */
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NULL, /* pSelectBrush */
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NULL, /* pSelectClipPath */
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NULL, /* pSelectFont */
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NULL, /* pSelectPalette */
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2011-04-07 14:46:33 +02:00
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dibdrv_SelectPen, /* pSelectPen */
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2011-04-01 16:27:48 +02:00
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NULL, /* pSetArcDirection */
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NULL, /* pSetBitmapBits */
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NULL, /* pSetBkColor */
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NULL, /* pSetBkMode */
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NULL, /* pSetDCBrushColor */
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NULL, /* pSetDCPenColor */
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NULL, /* pSetDIBColorTable */
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NULL, /* pSetDIBits */
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NULL, /* pSetDIBitsToDevice */
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NULL, /* pSetDeviceClipping */
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NULL, /* pSetDeviceGammaRamp */
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NULL, /* pSetLayout */
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NULL, /* pSetMapMode */
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NULL, /* pSetMapperFlags */
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NULL, /* pSetPixel */
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NULL, /* pSetPixelFormat */
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NULL, /* pSetPolyFillMode */
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NULL, /* pSetROP2 */
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NULL, /* pSetRelAbs */
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NULL, /* pSetStretchBltMode */
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NULL, /* pSetTextAlign */
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NULL, /* pSetTextCharacterExtra */
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NULL, /* pSetTextColor */
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NULL, /* pSetTextJustification */
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NULL, /* pSetViewportExt */
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NULL, /* pSetViewportOrg */
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NULL, /* pSetWindowExt */
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NULL, /* pSetWindowOrg */
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NULL, /* pSetWorldTransform */
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NULL, /* pStartDoc */
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NULL, /* pStartPage */
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NULL, /* pStretchBlt */
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NULL, /* pStretchDIBits */
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NULL, /* pStrokeAndFillPath */
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NULL, /* pStrokePath */
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NULL, /* pSwapBuffers */
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NULL, /* pUnrealizePalette */
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NULL, /* pWidenPath */
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NULL, /* pwglCopyContext */
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NULL, /* pwglCreateContext */
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NULL, /* pwglCreateContextAttribsARB */
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NULL, /* pwglDeleteContext */
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NULL, /* pwglGetProcAddress */
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NULL, /* pwglGetPbufferDCARB */
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NULL, /* pwglMakeCurrent */
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NULL, /* pwglMakeContextCurrentARB */
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NULL, /* pwglSetPixelFormatWINE */
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NULL, /* pwglShareLists */
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NULL, /* pwglUseFontBitmapsA */
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NULL /* pwglUseFontBitmapsW */
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};
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