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576 lines
14 KiB
C
576 lines
14 KiB
C
/*
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* ReactOS W32 Subsystem
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* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 ReactOS Team
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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/* $Id: surface.c,v 1.41 2004/06/23 07:31:22 gvg Exp $
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*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* PURPOSE: GDI Driver Surace Functions
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* FILE: subsys/win32k/eng/surface.c
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* PROGRAMER: Jason Filby
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* REVISION HISTORY:
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* 3/7/1999: Created
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* 9/11/2000: Updated to handle real pixel packed bitmaps (UPDATE TO DATE COMPLETED)
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* TESTING TO BE DONE:
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* - Create a GDI bitmap with all formats, perform all drawing operations on them, render to VGA surface
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* refer to \test\microwin\src\engine\devdraw.c for info on correct pixel plotting for various formats
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*/
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#include <w32k.h>
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enum Rle_EscapeCodes
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{
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RLE_EOL = 0, /* End of line */
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RLE_END = 1, /* End of bitmap */
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RLE_DELTA = 2 /* Delta */
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};
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INT FASTCALL BitsPerFormat(ULONG Format)
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{
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switch(Format)
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{
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case BMF_1BPP: return 1;
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case BMF_4BPP:
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case BMF_4RLE: return 4;
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case BMF_8BPP:
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case BMF_8RLE: return 8;
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case BMF_16BPP: return 16;
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case BMF_24BPP: return 24;
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case BMF_32BPP: return 32;
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default: return 0;
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}
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}
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ULONG FASTCALL BitmapFormat(WORD Bits, DWORD Compression)
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{
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switch(Compression)
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{
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case BI_RGB:
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switch(Bits)
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{
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case 1: return BMF_1BPP;
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case 4: return BMF_4BPP;
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case 8: return BMF_8BPP;
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case 16: return BMF_16BPP;
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case 24: return BMF_24BPP;
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case 32: return BMF_32BPP;
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}
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case BI_RLE4: return BMF_4RLE;
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case BI_RLE8: return BMF_8RLE;
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default: return 0;
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}
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}
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static VOID Dummy_PutPixel(SURFOBJ* SurfObj, LONG x, LONG y, ULONG c)
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{
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return;
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}
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static ULONG Dummy_GetPixel(SURFOBJ* SurfObj, LONG x, LONG y)
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{
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return 0;
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}
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static VOID Dummy_HLine(SURFOBJ* SurfObj, LONG x1, LONG x2, LONG y, ULONG c)
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{
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return;
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}
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static VOID Dummy_VLine(SURFOBJ* SurfObj, LONG x, LONG y1, LONG y2, ULONG c)
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{
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return;
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}
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static BOOLEAN Dummy_BitBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
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SURFGDI *DestGDI, SURFGDI *SourceGDI,
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RECTL* DestRect, POINTL *SourcePoint,
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BRUSHOBJ* BrushObj, POINTL BrushOrign,
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XLATEOBJ *ColorTranslation, ULONG Rop4)
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{
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return FALSE;
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}
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static BOOLEAN Dummy_StretchBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
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SURFGDI *DestGDI, SURFGDI *SourceGDI,
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RECTL* DestRect, RECTL *SourceRect,
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POINTL* MaskOrigin, POINTL BrushOrign,
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CLIPOBJ *ClipRegion, XLATEOBJ *ColorTranslation,
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ULONG Mode)
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{
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return FALSE;
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}
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static BOOLEAN Dummy_TransparentBlt(SURFOBJ *DestSurf, SURFOBJ *SourceSurf,
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PSURFGDI DestGDI, PSURFGDI SourceGDI,
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RECTL* DestRect, POINTL *SourcePoint,
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XLATEOBJ *ColorTranslation, ULONG iTransColor)
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{
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return FALSE;
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}
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#define SURF_METHOD(c,n) DIB_##c##_##n
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#define SET_SURFGDI(c)\
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SurfGDI->DIB_PutPixel=SURF_METHOD(c,PutPixel);\
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SurfGDI->DIB_GetPixel=SURF_METHOD(c,GetPixel);\
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SurfGDI->DIB_HLine=SURF_METHOD(c,HLine);\
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SurfGDI->DIB_VLine=SURF_METHOD(c,VLine);\
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SurfGDI->DIB_BitBlt=SURF_METHOD(c,BitBlt);\
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SurfGDI->DIB_StretchBlt=SURF_METHOD(c,StretchBlt);\
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SurfGDI->DIB_TransparentBlt=SURF_METHOD(c,TransparentBlt);
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VOID FASTCALL InitializeFuncs(SURFGDI *SurfGDI, ULONG BitmapFormat)
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{
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SurfGDI->BitBlt = NULL;
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SurfGDI->StretchBlt = NULL;
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SurfGDI->CopyBits = NULL;
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SurfGDI->CreateDeviceBitmap = NULL;
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SurfGDI->SetPalette = NULL;
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SurfGDI->TransparentBlt = NULL;
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switch(BitmapFormat)
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{
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case BMF_1BPP: SET_SURFGDI(1BPP) break;
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case BMF_4BPP: SET_SURFGDI(4BPP) break;
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case BMF_8BPP: SET_SURFGDI(8BPP) break;
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case BMF_16BPP: SET_SURFGDI(16BPP) break;
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case BMF_24BPP: SET_SURFGDI(24BPP) break;
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case BMF_32BPP: SET_SURFGDI(32BPP) break;
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case BMF_4RLE:
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case BMF_8RLE:
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/* Not supported yet, fall through to unrecognized case */
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default:
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DPRINT1("InitializeFuncs: unsupported DIB format %d\n",
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BitmapFormat);
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SurfGDI->DIB_PutPixel = Dummy_PutPixel;
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SurfGDI->DIB_GetPixel = Dummy_GetPixel;
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SurfGDI->DIB_HLine = Dummy_HLine;
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SurfGDI->DIB_VLine = Dummy_VLine;
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SurfGDI->DIB_BitBlt = Dummy_BitBlt;
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SurfGDI->DIB_StretchBlt = Dummy_StretchBlt;
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SurfGDI->DIB_TransparentBlt = Dummy_TransparentBlt;
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break;
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}
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}
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/*
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* @implemented
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*/
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HBITMAP STDCALL
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EngCreateDeviceBitmap(IN DHSURF dhsurf,
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IN SIZEL Size,
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IN ULONG Format)
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{
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HBITMAP NewBitmap;
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SURFOBJ *SurfObj;
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NewBitmap = EngCreateBitmap(Size, DIB_GetDIBWidthBytes(Size.cx, BitsPerFormat(Format)), Format, 0, NULL);
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SurfObj = (PVOID)AccessUserObject((ULONG)NewBitmap);
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SurfObj->dhsurf = dhsurf;
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return NewBitmap;
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}
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VOID Decompress4bpp(SIZEL Size, BYTE *CompressedBits, BYTE *UncompressedBits, LONG Delta)
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{
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int x = 0;
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int y = Size.cy - 1;
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int c;
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int length;
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int width = ((Size.cx+1)/2);
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int height = Size.cy - 1;
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BYTE *begin = CompressedBits;
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BYTE *bits = CompressedBits;
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BYTE *temp;
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while (y >= 0)
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{
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length = *bits++ / 2;
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if (length)
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{
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c = *bits++;
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while (length--)
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{
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if (x >= width) break;
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temp = UncompressedBits + (((height - y) * Delta) + x);
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x++;
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*temp = c;
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}
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} else {
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length = *bits++;
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switch (length)
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{
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case RLE_EOL:
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x = 0;
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y--;
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break;
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case RLE_END:
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return;
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case RLE_DELTA:
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x += (*bits++)/2;
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y -= (*bits++)/2;
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break;
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default:
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length /= 2;
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while (length--)
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{
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c = *bits++;
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if (x < width)
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{
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temp = UncompressedBits + (((height - y) * Delta) + x);
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x++;
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*temp = c;
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}
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}
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if ((bits - begin) & 1)
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bits++;
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}
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}
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}
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}
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VOID Decompress8bpp(SIZEL Size, BYTE *CompressedBits, BYTE *UncompressedBits, LONG Delta)
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{
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int x = 0;
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int y = Size.cy - 1;
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int c;
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int length;
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int width = Size.cx;
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int height = Size.cy - 1;
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BYTE *begin = CompressedBits;
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BYTE *bits = CompressedBits;
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BYTE *temp;
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while (y >= 0)
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{
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length = *bits++;
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if (length)
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{
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c = *bits++;
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while (length--)
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{
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if (x >= width) break;
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temp = UncompressedBits + (((height - y) * Delta) + x);
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x++;
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*temp = c;
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}
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} else {
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length = *bits++;
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switch (length)
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{
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case RLE_EOL:
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x = 0;
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y--;
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break;
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case RLE_END:
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return;
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case RLE_DELTA:
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x += *bits++;
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y -= *bits++;
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break;
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default:
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while (length--)
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{
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c = *bits++;
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if (x < width)
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{
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temp = UncompressedBits + (((height - y) * Delta) + x);
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x++;
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*temp = c;
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}
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}
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if ((bits - begin) & 1)
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bits++;
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}
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}
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}
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}
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/*
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* @implemented
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*/
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HBITMAP STDCALL
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EngCreateBitmap(IN SIZEL Size,
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IN LONG Width,
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IN ULONG Format,
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IN ULONG Flags,
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IN PVOID Bits)
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{
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HBITMAP NewBitmap;
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SURFOBJ *SurfObj;
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SURFGDI *SurfGDI;
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PVOID UncompressedBits;
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ULONG UncompressedFormat;
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if (Width < 0) __asm__("int $3\n");
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NewBitmap = (HBITMAP) CreateGDIHandle(sizeof(SURFGDI), sizeof(SURFOBJ), (PVOID*)&SurfGDI, (PVOID*)&SurfObj);
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if (! ValidEngHandle(NewBitmap))
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return 0;
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SurfGDI->BitsPerPixel = BitsPerFormat(Format);
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if (Format == BMF_4RLE)
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{
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SurfObj->lDelta = DIB_GetDIBWidthBytes(Size.cx, BitsPerFormat(BMF_4BPP));
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SurfObj->cjBits = SurfObj->lDelta * Size.cy;
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UncompressedFormat = BMF_4BPP;
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UncompressedBits = EngAllocMem(FL_ZERO_MEMORY, SurfObj->cjBits, 0);
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Decompress4bpp(Size, (BYTE *)Bits, (BYTE *)UncompressedBits, SurfObj->lDelta);
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}
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else if (Format == BMF_8RLE)
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{
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SurfObj->lDelta = DIB_GetDIBWidthBytes(Size.cx, BitsPerFormat(BMF_8BPP));
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SurfObj->cjBits = SurfObj->lDelta * Size.cy;
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UncompressedFormat = BMF_8BPP;
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UncompressedBits = EngAllocMem(FL_ZERO_MEMORY, SurfObj->cjBits, 0);
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Decompress8bpp(Size, (BYTE *)Bits, (BYTE *)UncompressedBits, SurfObj->lDelta);
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}
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else
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{
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SurfObj->lDelta = Width;
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SurfObj->cjBits = Width * Size.cy;
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UncompressedBits = Bits;
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UncompressedFormat = Format;
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}
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if (UncompressedBits != NULL)
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{
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SurfObj->pvBits = UncompressedBits;
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}
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else
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{
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if (SurfObj->cjBits == 0)
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{
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SurfObj->pvBits = NULL;
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}
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else
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{
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if (0 != (Flags & BMF_USERMEM))
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{
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SurfObj->pvBits = EngAllocUserMem(SurfObj->cjBits, 0);
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}
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else
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{
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SurfObj->pvBits = EngAllocMem(0 != (Flags & BMF_NOZEROINIT) ? 0 : FL_ZERO_MEMORY,
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SurfObj->cjBits, 0);
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}
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}
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}
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if (0 == (Flags & BMF_TOPDOWN))
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{
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SurfObj->pvBits = (PVOID) ((PCHAR) UncompressedBits + SurfObj->cjBits - SurfObj->lDelta);
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SurfObj->lDelta = - SurfObj->lDelta;
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}
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SurfObj->dhsurf = 0; /* device managed surface */
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SurfObj->hsurf = 0;
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SurfObj->dhpdev = NULL;
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SurfObj->hdev = NULL;
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SurfObj->sizlBitmap = Size;
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SurfObj->iBitmapFormat = UncompressedFormat;
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SurfObj->iType = STYPE_BITMAP;
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SurfObj->fjBitmap = Flags & (BMF_TOPDOWN | BMF_NOZEROINIT);
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SurfObj->pvScan0 = SurfObj->pvBits;
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SurfObj->iUniq = 0;
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InitializeFuncs(SurfGDI, UncompressedFormat);
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/* Use flags to determine bitmap type -- TOP_DOWN or whatever */
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return NewBitmap;
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}
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/*
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* @unimplemented
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*/
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HSURF STDCALL
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EngCreateDeviceSurface(IN DHSURF dhsurf,
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IN SIZEL Size,
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IN ULONG Format)
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{
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HSURF NewSurface;
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SURFOBJ *SurfObj;
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SURFGDI *SurfGDI;
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NewSurface = (HSURF)CreateGDIHandle(sizeof( SURFGDI ), sizeof( SURFOBJ ), (PVOID*)&SurfGDI, (PVOID*)&SurfObj);
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if( !ValidEngHandle( NewSurface ) )
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return 0;
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SurfGDI->BitsPerPixel = BitsPerFormat(Format);
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SurfObj->dhsurf = dhsurf;
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SurfObj->hsurf = (HSURF) dhsurf; // FIXME: Is this correct??
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SurfObj->sizlBitmap = Size;
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SurfObj->iBitmapFormat = Format;
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SurfObj->lDelta = DIB_GetDIBWidthBytes(Size.cx, BitsPerFormat(Format));
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SurfObj->iType = STYPE_DEVICE;
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SurfObj->iUniq = 0;
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InitializeFuncs(SurfGDI, Format);
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return NewSurface;
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}
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PFN FASTCALL DriverFunction(DRVENABLEDATA *DED, ULONG DriverFunc)
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{
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ULONG i;
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for(i=0; i<DED->c; i++)
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{
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if(DED->pdrvfn[i].iFunc == DriverFunc)
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return DED->pdrvfn[i].pfn;
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}
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return NULL;
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}
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/*
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* @implemented
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*/
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BOOL STDCALL
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EngAssociateSurface(IN HSURF Surface,
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IN HDEV Dev,
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IN ULONG Hooks)
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{
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SURFOBJ *SurfObj;
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SURFGDI *SurfGDI;
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GDIDEVICE* Device;
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Device = (GDIDEVICE*)Dev;
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SurfObj = (SURFOBJ*)AccessUserObject((ULONG)Surface);
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ASSERT(SurfObj);
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SurfGDI = (SURFGDI*)AccessInternalObjectFromUserObject(SurfObj);
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// Associate the hdev
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SurfObj->hdev = Dev;
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SurfObj->dhpdev = Device->PDev;
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// Hook up specified functions
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if(Hooks & HOOK_BITBLT) SurfGDI->BitBlt = Device->DriverFunctions.BitBlt;
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if(Hooks & HOOK_TRANSPARENTBLT) SurfGDI->TransparentBlt = Device->DriverFunctions.TransparentBlt;
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if(Hooks & HOOK_STRETCHBLT) SurfGDI->StretchBlt = (PFN_StretchBlt)Device->DriverFunctions.StretchBlt;
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if(Hooks & HOOK_TEXTOUT) SurfGDI->TextOut = Device->DriverFunctions.TextOut;
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if(Hooks & HOOK_PAINT) SurfGDI->Paint = Device->DriverFunctions.Paint;
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if(Hooks & HOOK_STROKEPATH) SurfGDI->StrokePath = Device->DriverFunctions.StrokePath;
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if(Hooks & HOOK_FILLPATH) SurfGDI->FillPath = Device->DriverFunctions.FillPath;
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if(Hooks & HOOK_STROKEANDFILLPATH) SurfGDI->StrokeAndFillPath = Device->DriverFunctions.StrokeAndFillPath;
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if(Hooks & HOOK_LINETO) SurfGDI->LineTo = Device->DriverFunctions.LineTo;
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if(Hooks & HOOK_COPYBITS) SurfGDI->CopyBits = Device->DriverFunctions.CopyBits;
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if(Hooks & HOOK_SYNCHRONIZE) SurfGDI->Synchronize = Device->DriverFunctions.Synchronize;
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if(Hooks & HOOK_SYNCHRONIZEACCESS) SurfGDI->SynchronizeAccess = TRUE;
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if(Hooks & HOOK_GRADIENTFILL) SurfGDI->GradientFill = Device->DriverFunctions.GradientFill;
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SurfGDI->CreateDeviceBitmap = Device->DriverFunctions.CreateDeviceBitmap;
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SurfGDI->SetPalette = Device->DriverFunctions.SetPalette;
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SurfGDI->MovePointer = Device->DriverFunctions.MovePointer;
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SurfGDI->SetPointerShape = (PFN_SetPointerShape)Device->DriverFunctions.SetPointerShape;
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SurfGDI->DriverLock = &Device->DriverLock;
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return TRUE;
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}
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/*
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* @implemented
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*/
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BOOL STDCALL
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EngModifySurface(
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IN HSURF hsurf,
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IN HDEV hdev,
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IN FLONG flHooks,
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IN FLONG flSurface,
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IN DHSURF dhsurf,
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OUT VOID *pvScan0,
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IN LONG lDelta,
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IN VOID *pvReserved)
|
|
{
|
|
SURFOBJ *pso;
|
|
|
|
pso = EngLockSurface(hsurf);
|
|
if (pso == NULL)
|
|
{
|
|
return FALSE;
|
|
}
|
|
|
|
if (!EngAssociateSurface(hsurf, hdev, flHooks))
|
|
{
|
|
EngUnlockSurface(pso);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
pso->dhsurf = dhsurf;
|
|
pso->lDelta = lDelta;
|
|
pso->pvScan0 = pvScan0;
|
|
|
|
EngUnlockSurface(pso);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
* @implemented
|
|
*/
|
|
BOOL STDCALL
|
|
EngDeleteSurface(IN HSURF Surface)
|
|
{
|
|
FreeGDIHandle((ULONG)Surface);
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
* @implemented
|
|
*/
|
|
BOOL STDCALL
|
|
EngEraseSurface(SURFOBJ *Surface,
|
|
RECTL *Rect,
|
|
ULONG iColor)
|
|
{
|
|
return FillSolid(Surface, Rect, iColor);
|
|
}
|
|
|
|
/*
|
|
* @unimplemented
|
|
*/
|
|
SURFOBJ * STDCALL
|
|
EngLockSurface(IN HSURF Surface)
|
|
{
|
|
/*
|
|
* FIXME - don't know if GDIOBJ_LockObj's return value is a SURFOBJ or not...
|
|
* also, what is HSURF's correct magic #?
|
|
*/
|
|
#ifdef TODO
|
|
GDIOBJ_LockObj ( Surface, GDI_OBJECT_TYPE_DONTCARE );
|
|
#endif
|
|
return (SURFOBJ*)AccessUserObject((ULONG)Surface);
|
|
}
|
|
|
|
/*
|
|
* @unimplemented
|
|
*/
|
|
VOID STDCALL
|
|
EngUnlockSurface(IN SURFOBJ *Surface)
|
|
{
|
|
/*
|
|
* FIXME what is HSURF's correct magic #?
|
|
*/
|
|
#ifdef TODO
|
|
GDIOBJ_UnlockObj ( Surface->hsurf, GDI_OBJECT_TYPE_DONTCARE );
|
|
#endif
|
|
}
|
|
/* EOF */
|