/* * 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 #include "gdi_private.h" #include "dibdrv.h" #include "wine/debug.h" WINE_DEFAULT_DEBUG_CHANNEL(dib); 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); } static BOOL init_dib_info(dib_info *dib, const BITMAPINFOHEADER *bi, const DWORD *bit_fields, RGBQUAD *color_table, int color_table_size, void *bits) { static const DWORD bit_fields_888[3] = {0xff0000, 0x00ff00, 0x0000ff}; static const DWORD bit_fields_555[3] = {0x7c00, 0x03e0, 0x001f}; dib->bit_count = bi->biBitCount; dib->width = bi->biWidth; dib->height = bi->biHeight; dib->stride = ((dib->width * dib->bit_count + 31) >> 3) & ~3; dib->bits = bits; 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; 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; case 24: dib->funcs = &funcs_24; break; 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; case 8: dib->funcs = &funcs_8; break; case 4: dib->funcs = &funcs_4; break; case 1: dib->funcs = &funcs_1; break; default: TRACE("bpp %d not supported, will forward to graphics driver.\n", dib->bit_count); return FALSE; } if(color_table) { dib->color_table = HeapAlloc(GetProcessHeap(), 0, color_table_size * sizeof(dib->color_table[0])); if(!dib->color_table) return FALSE; dib->color_table_size = color_table_size; memcpy(dib->color_table, color_table, color_table_size * sizeof(color_table[0])); } else { dib->color_table = NULL; dib->color_table_size = 0; } return TRUE; } BOOL init_dib_info_from_packed(dib_info *dib, const BITMAPINFOHEADER *bi, WORD usage, HPALETTE palette) { DWORD *masks = NULL; RGBQUAD *color_table = NULL, pal_table[256]; BYTE *ptr = (BYTE*)bi + bi->biSize; int num_colors = bi->biClrUsed; if(bi->biCompression == BI_BITFIELDS) { masks = (DWORD *)ptr; ptr += 3 * sizeof(DWORD); } if(!num_colors && bi->biBitCount <= 8) num_colors = 1 << bi->biBitCount; 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); } static void clear_dib_info(dib_info *dib) { dib->color_table = NULL; dib->bits = NULL; } /********************************************************************** * free_dib_info * * Free the resources associated with a dib and optionally the bits */ void free_dib_info(dib_info *dib, BOOL free_bits) { HeapFree(GetProcessHeap(), 0, dib->color_table); dib->color_table = NULL; if(free_bits) { HeapFree(GetProcessHeap(), 0, dib->bits); 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; dst->color_table_size = src->color_table_size; dst->color_table = NULL; if(dst->color_table_size) { int size = dst->color_table_size * sizeof(dst->color_table[0]); dst->color_table = HeapAlloc(GetProcessHeap(), 0, size); memcpy(dst->color_table, src->color_table, size); } } /************************************************************** * convert_dib * * Converts src into the format specified in dst. * * FIXME: At the moment this always creates a top-down dib, * do we want to give the option of bottom-up? */ BOOL convert_dib(dib_info *dst, const dib_info *src) { BOOL ret; RECT src_rect; dst->height = src->height; dst->width = src->width; dst->stride = ((dst->width * dst->bit_count + 31) >> 3) & ~3; dst->bits = HeapAlloc(GetProcessHeap(), 0, dst->height * dst->stride); src_rect.left = src_rect.top = 0; src_rect.right = src->width; src_rect.bottom = src->height; ret = dst->funcs->convert_to(dst, src, &src_rect); if(!ret) free_dib_info(dst, TRUE); return ret; } 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 CDECL 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, FALSE); return 0; } /*********************************************************************** * dibdrv_SelectBitmap */ static HBITMAP CDECL dibdrv_SelectBitmap( PHYSDEV dev, HBITMAP bitmap ) { 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; if(!init_dib_info(&pdev->dib, &bmp->dib->dsBmih, bmp->dib->dsBitfields, bmp->color_table, bmp->nb_colors, bmp->dib->dsBm.bmBits)) pdev->defer |= DEFER_FORMAT; GDI_ReleaseObj( bitmap ); return next->funcs->pSelectBitmap( next, bitmap ); } /*********************************************************************** * dibdrv_SetBkColor */ static COLORREF CDECL 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; } update_fg_colors( pdev ); /* Only needed in the 1 bpp case */ return next->funcs->pSetBkColor( next, color ); } /*********************************************************************** * dibdrv_SetBkMode */ static INT CDECL 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 CDECL 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 CDECL 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 CDECL 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 ); } 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, /* pGetBitmapBits */ NULL, /* pGetCharWidth */ NULL, /* pGetDIBits */ NULL, /* pGetDeviceCaps */ NULL, /* pGetDeviceGammaRamp */ NULL, /* pGetICMProfile */ NULL, /* pGetNearestColor */ NULL, /* pGetPixel */ NULL, /* pGetPixelFormat */ NULL, /* pGetSystemPaletteEntries */ NULL, /* pGetTextExtentExPoint */ NULL, /* pGetTextMetrics */ NULL, /* pIntersectClipRect */ NULL, /* pInvertRgn */ dibdrv_LineTo, /* pLineTo */ NULL, /* pModifyWorldTransform */ NULL, /* pMoveTo */ NULL, /* pOffsetClipRgn */ NULL, /* pOffsetViewportOrg */ NULL, /* pOffsetWindowOrg */ dibdrv_PaintRgn, /* pPaintRgn */ dibdrv_PatBlt, /* pPatBlt */ NULL, /* pPie */ NULL, /* pPolyBezier */ NULL, /* pPolyBezierTo */ NULL, /* pPolyDraw */ NULL, /* pPolyPolygon */ NULL, /* pPolyPolyline */ NULL, /* pPolygon */ NULL, /* pPolyline */ NULL, /* pPolylineTo */ NULL, /* pRealizeDefaultPalette */ NULL, /* pRealizePalette */ dibdrv_Rectangle, /* pRectangle */ NULL, /* pResetDC */ NULL, /* pRestoreDC */ NULL, /* pRoundRect */ NULL, /* pSaveDC */ NULL, /* pScaleViewportExt */ NULL, /* pScaleWindowExt */ dibdrv_SelectBitmap, /* pSelectBitmap */ dibdrv_SelectBrush, /* pSelectBrush */ NULL, /* pSelectClipPath */ NULL, /* pSelectFont */ NULL, /* pSelectPalette */ dibdrv_SelectPen, /* pSelectPen */ NULL, /* pSetArcDirection */ NULL, /* pSetBitmapBits */ dibdrv_SetBkColor, /* pSetBkColor */ dibdrv_SetBkMode, /* pSetBkMode */ dibdrv_SetDCBrushColor, /* pSetDCBrushColor */ dibdrv_SetDCPenColor, /* pSetDCPenColor */ dibdrv_SetDIBColorTable, /* pSetDIBColorTable */ NULL, /* pSetDIBits */ NULL, /* pSetDIBitsToDevice */ dibdrv_SetDeviceClipping, /* pSetDeviceClipping */ NULL, /* pSetDeviceGammaRamp */ NULL, /* pSetLayout */ NULL, /* pSetMapMode */ NULL, /* pSetMapperFlags */ NULL, /* pSetPixel */ NULL, /* pSetPixelFormat */ NULL, /* pSetPolyFillMode */ dibdrv_SetROP2, /* pSetROP2 */ 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, /* pwglGetProcAddress */ NULL, /* pwglGetPbufferDCARB */ NULL, /* pwglMakeCurrent */ NULL, /* pwglMakeContextCurrentARB */ NULL, /* pwglSetPixelFormatWINE */ NULL, /* pwglShareLists */ NULL, /* pwglUseFontBitmapsA */ NULL /* pwglUseFontBitmapsW */ };