Files
reactos/reactos/subsys/win32k/objects/bitmaps.c
T
Gé van Geldorp d8b7c0ee97 Fix mono -> color bitblts
svn path=/trunk/; revision=8345
2004-02-23 22:44:52 +00:00

1123 lines
28 KiB
C

/*
* ReactOS W32 Subsystem
* Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003 ReactOS Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* $Id: bitmaps.c,v 1.57 2004/02/23 22:44:52 gvg Exp $ */
#undef WIN32_LEAN_AND_MEAN
#include <windows.h>
#include <stdlib.h>
#include <win32k/color.h>
#include <win32k/gdiobj.h>
#include <win32k/bitmaps.h>
#include <win32k/brush.h>
#include <win32k/region.h>
//#include <win32k/debug.h>
#include "../eng/handle.h"
#include <include/inteng.h>
#include <include/eng.h>
#include <include/error.h>
#include <include/surface.h>
#include <include/palette.h>
#include <include/tags.h>
#define NDEBUG
#include <win32k/debug1.h>
BOOL STDCALL NtGdiBitBlt(HDC hDCDest,
INT XDest,
INT YDest,
INT Width,
INT Height,
HDC hDCSrc,
INT XSrc,
INT YSrc,
DWORD ROP)
{
PDC DCDest = NULL;
PDC DCSrc = NULL;
PSURFOBJ SurfDest, SurfSrc;
PSURFGDI SurfGDIDest, SurfGDISrc;
RECTL DestRect;
POINTL SourcePoint;
BOOL Status;
PPALGDI PalDestGDI, PalSourceGDI;
PXLATEOBJ XlateObj = NULL;
HPALETTE SourcePalette, DestPalette;
ULONG SourceMode, DestMode;
PBRUSHOBJ BrushObj;
BOOL UsesSource = ((ROP & 0xCC0000) >> 2) != (ROP & 0x330000);
BOOL UsesPattern = TRUE;//((ROP & 0xF00000) >> 4) != (ROP & 0x0F0000);
HPALETTE Mono = NULL;
DCDest = DC_LockDc(hDCDest);
if (NULL == DCDest)
{
DPRINT1("Invalid destination dc handle (0x%08x) passed to NtGdiBitBlt\n", hDCDest);
SetLastWin32Error(ERROR_INVALID_HANDLE);
return FALSE;
}
if (UsesSource)
{
if (hDCSrc != hDCDest)
{
DCSrc = DC_LockDc(hDCSrc);
if (NULL == DCSrc)
{
DC_UnlockDc(hDCDest);
DPRINT1("Invalid source dc handle (0x%08x) passed to NtGdiBitBlt\n", hDCSrc);
SetLastWin32Error(ERROR_INVALID_HANDLE);
return FALSE;
}
}
else
{
DCSrc = DCDest;
}
}
else
{
DCSrc = NULL;
}
/* Offset the destination and source by the origin of their DCs. */
XDest += DCDest->w.DCOrgX;
YDest += DCDest->w.DCOrgY;
if (UsesSource)
{
XSrc += DCSrc->w.DCOrgX;
YSrc += DCSrc->w.DCOrgY;
}
DestRect.left = XDest;
DestRect.top = YDest;
DestRect.right = XDest+Width;
DestRect.bottom = YDest+Height;
SourcePoint.x = XSrc;
SourcePoint.y = YSrc;
/* Determine surfaces to be used in the bitblt */
SurfDest = (PSURFOBJ)AccessUserObject((ULONG)DCDest->Surface);
SurfGDIDest = (PSURFGDI)AccessInternalObjectFromUserObject(SurfDest);
if (UsesSource)
{
SurfSrc = (PSURFOBJ)AccessUserObject((ULONG)DCSrc->Surface);
SurfGDISrc = (PSURFGDI)AccessInternalObjectFromUserObject(SurfSrc);
}
else
{
SurfSrc = NULL;
SurfGDISrc = NULL;
}
if (UsesPattern)
{
BrushObj = BRUSHOBJ_LockBrush(DCDest->w.hBrush);
if (NULL == BrushObj)
{
if (UsesSource && hDCSrc != hDCDest)
{
DC_UnlockDc(hDCSrc);
}
DC_UnlockDc(hDCDest);
SetLastWin32Error(ERROR_INVALID_HANDLE);
return FALSE;
}
}
else
{
BrushObj = NULL;
}
if (DCDest->w.hPalette != 0)
{
DestPalette = DCDest->w.hPalette;
}
else
{
DestPalette = NtGdiGetStockObject(DEFAULT_PALETTE);
}
if (UsesSource && DCSrc->w.hPalette != 0)
{
SourcePalette = DCSrc->w.hPalette;
}
else
{
SourcePalette = NtGdiGetStockObject(DEFAULT_PALETTE);
}
PalSourceGDI = PALETTE_LockPalette(SourcePalette);
if (NULL == PalSourceGDI)
{
if (UsesSource && hDCSrc != hDCDest)
{
DC_UnlockDc(hDCSrc);
}
DC_UnlockDc(hDCDest);
SetLastWin32Error(ERROR_INVALID_HANDLE);
return FALSE;
}
SourceMode = PalSourceGDI->Mode;
PALETTE_UnlockPalette(SourcePalette);
if (DestPalette == SourcePalette)
{
DestMode = SourceMode;
}
else
{
PalDestGDI = PALETTE_LockPalette(DestPalette);
if (NULL == PalDestGDI)
{
if (UsesSource && hDCSrc != hDCDest)
{
DC_UnlockDc(hDCSrc);
}
DC_UnlockDc(hDCDest);
SetLastWin32Error(ERROR_INVALID_HANDLE);
return FALSE;
}
DestMode = PalDestGDI->Mode;
PALETTE_UnlockPalette(DestPalette);
}
/* KB41464 details how to convert between mono and color */
if (DCDest->w.bitsPerPixel == 1)
{
XlateObj = (PXLATEOBJ)IntEngCreateMonoXlate(SourceMode, DestPalette,
SourcePalette, DCSrc->w.backgroundColor);
}
else if (UsesSource && 1 == DCSrc->w.bitsPerPixel)
{
ULONG Colors[2];
Colors[0] = DCSrc->w.textColor;
Colors[1] = DCSrc->w.backgroundColor;
Mono = EngCreatePalette(PAL_INDEXED, 2, Colors, 0, 0, 0);
if (NULL != Mono)
{
XlateObj = (PXLATEOBJ)IntEngCreateXlate(DestMode, PAL_INDEXED, DestPalette, Mono);
}
else
{
XlateObj = NULL;
}
}
else
{
XlateObj = (PXLATEOBJ)IntEngCreateXlate(DestMode, SourceMode, DestPalette, SourcePalette);
}
if (NULL == XlateObj)
{
if (NULL != Mono)
{
EngDeletePalette(Mono);
}
if (UsesSource && hDCSrc != hDCDest)
{
DC_UnlockDc(hDCSrc);
}
DC_UnlockDc(hDCDest);
SetLastWin32Error(ERROR_NO_SYSTEM_RESOURCES);
return FALSE;
}
/* Perform the bitblt operation */
Status = IntEngBitBlt(SurfDest, SurfSrc, NULL, DCDest->CombinedClip, XlateObj,
&DestRect, &SourcePoint, NULL, BrushObj, NULL, ROP);
EngDeleteXlate(XlateObj);
if (NULL != Mono)
{
EngDeletePalette(Mono);
}
if (UsesPattern)
{
BRUSHOBJ_UnlockBrush(DCDest->w.hBrush);
}
if (UsesSource && hDCSrc != hDCDest)
{
DC_UnlockDc(hDCSrc);
}
DC_UnlockDc(hDCDest);
return Status;
}
HBITMAP STDCALL NtGdiCreateBitmap(INT Width,
INT Height,
UINT Planes,
UINT BitsPerPel,
CONST VOID *Bits)
{
PBITMAPOBJ bmp;
HBITMAP hBitmap;
Planes = (BYTE) Planes;
BitsPerPel = (BYTE) BitsPerPel;
/* Check parameters */
if (!Height || !Width)
{
Width = 1;
Height = 1;
}
if (Planes != 1)
{
UNIMPLEMENTED;
return 0;
}
if (Height < 0)
{
Height = -Height;
}
if (Width < 0)
{
Width = -Width;
}
/* Create the BITMAPOBJ */
hBitmap = BITMAPOBJ_AllocBitmap ();
if (!hBitmap)
{
DPRINT("NtGdiCreateBitmap: BITMAPOBJ_AllocBitmap returned 0\n");
return 0;
}
bmp = BITMAPOBJ_LockBitmap( hBitmap );
DPRINT("NtGdiCreateBitmap:%dx%d, %d (%d BPP) colors returning %08x\n", Width, Height,
1 << (Planes * BitsPerPel), BitsPerPel, bmp);
bmp->dimension.cx = 0;
bmp->dimension.cy = 0;
bmp->bitmap.bmType = 0;
bmp->bitmap.bmWidth = Width;
bmp->bitmap.bmHeight = Height;
bmp->bitmap.bmPlanes = Planes;
bmp->bitmap.bmBitsPixel = BitsPerPel;
bmp->bitmap.bmWidthBytes = BITMAPOBJ_GetWidthBytes (Width, BitsPerPel);
bmp->bitmap.bmBits = NULL;
bmp->DDBitmap = NULL;
bmp->dib = NULL;
// Allocate memory for bitmap bits
bmp->bitmap.bmBits = ExAllocatePoolWithTag(PagedPool, bmp->bitmap.bmWidthBytes * bmp->bitmap.bmHeight, TAG_BITMAP);
BITMAPOBJ_UnlockBitmap( hBitmap );
if (Bits) /* Set bitmap bits */
{
NtGdiSetBitmapBits(hBitmap, Height * bmp->bitmap.bmWidthBytes, Bits);
}
return hBitmap;
}
BOOL FASTCALL Bitmap_InternalDelete( PBITMAPOBJ pBmp )
{
ASSERT( pBmp );
if (NULL != pBmp->bitmap.bmBits)
{
if (NULL != pBmp->dib)
{
if (NULL == pBmp->dib->dshSection)
{
EngFreeUserMem(pBmp->bitmap.bmBits);
}
else
{
/* This is a file-mapped section */
UNIMPLEMENTED;
}
}
else
{
ExFreePool(pBmp->bitmap.bmBits);
}
}
return TRUE;
}
HBITMAP STDCALL NtGdiCreateCompatibleBitmap(HDC hDC,
INT Width,
INT Height)
{
HBITMAP hbmpRet;
PDC dc;
hbmpRet = 0;
dc = DC_LockDc(hDC);
DPRINT("NtGdiCreateCompatibleBitmap(%04x,%d,%d, bpp:%d) = \n", hDC, Width, Height, dc->w.bitsPerPixel);
if (!dc)
{
return 0;
}
if ((Width >= 0x10000) || (Height >= 0x10000))
{
DPRINT("got bad width %d or height %d, please look for reason\n", Width, Height);
}
else
{
/* MS doc says if width or height is 0, return 1-by-1 pixel, monochrome bitmap */
if (!Width || !Height)
{
hbmpRet = NtGdiCreateBitmap (1, 1, 1, 1, NULL);
}
else
{
hbmpRet = NtGdiCreateBitmap(Width, Height, 1, dc->w.bitsPerPixel, NULL);
}
}
DPRINT ("\t\t%04x\n", hbmpRet);
DC_UnlockDc( hDC );
return hbmpRet;
}
HBITMAP STDCALL NtGdiCreateBitmapIndirect(CONST BITMAP *BM)
{
return NtGdiCreateBitmap (BM->bmWidth,
BM->bmHeight,
BM->bmPlanes,
BM->bmBitsPixel,
BM->bmBits);
}
HBITMAP STDCALL NtGdiCreateDiscardableBitmap(HDC hDC,
INT Width,
INT Height)
{
/* FIXME: this probably should do something else */
return NtGdiCreateCompatibleBitmap(hDC, Width, Height);
}
BOOL STDCALL NtGdiExtFloodFill(HDC hDC,
INT XStart,
INT YStart,
COLORREF Color,
UINT FillType)
{
UNIMPLEMENTED;
}
BOOL STDCALL NtGdiFloodFill(HDC hDC,
INT XStart,
INT YStart,
COLORREF Fill)
{
return NtGdiExtFloodFill(hDC, XStart, YStart, Fill, FLOODFILLBORDER );
}
BOOL STDCALL NtGdiGetBitmapDimensionEx(HBITMAP hBitmap,
LPSIZE Dimension)
{
PBITMAPOBJ bmp;
bmp = BITMAPOBJ_LockBitmap(hBitmap);
if (bmp == NULL)
{
return FALSE;
}
*Dimension = bmp->dimension;
BITMAPOBJ_UnlockBitmap(hBitmap);
return TRUE;
}
COLORREF STDCALL NtGdiGetPixel(HDC hDC, INT XPos, INT YPos)
{
PDC dc = NULL;
COLORREF Result = (COLORREF) 0;
PSURFGDI Surface;
PSURFOBJ SurfaceObject;
dc = DC_LockDc (hDC);
if (dc == NULL)
{
return (COLORREF)CLR_INVALID;
}
if (XPos < dc->CombinedClip->rclBounds.left ||
XPos > dc->CombinedClip->rclBounds.right ||
YPos < dc->CombinedClip->rclBounds.top ||
YPos > dc->CombinedClip->rclBounds.bottom)
{
DC_UnlockDc(hDC);
return (COLORREF)CLR_INVALID;
}
SurfaceObject = (PSURFOBJ)AccessUserObject((ULONG)dc->Surface);
Surface = (PSURFGDI)AccessInternalObjectFromUserObject(SurfaceObject);
if (Surface == NULL || Surface->DIB_GetPixel == NULL)
{
DC_UnlockDc(hDC);
return (COLORREF)CLR_INVALID;
}
Result = Surface->DIB_GetPixel(SurfaceObject, XPos, YPos);
DC_UnlockDc(hDC);
return Result;
}
/***********************************************************************
* MaskBlt
* Ported from WINE by sedwards 11-4-03
*
* Someone thought it would be faster to do it here and then switch back
* to GDI32. I dunno. Write a test and let me know.
*/
static inline BYTE SwapROP3_SrcDst(BYTE bRop3)
{
return (bRop3 & 0x99) | ((bRop3 & 0x22) << 1) | ((bRop3 & 0x44) >> 1);
}
#define FRGND_ROP3(ROP4) ((ROP4) & 0x00FFFFFF)
#define BKGND_ROP3(ROP4) (ROP3Table[(SwapROP3_SrcDst((ROP4)>>24)) & 0xFF])
#define DSTCOPY 0x00AA0029
#define DSTERASE 0x00220326 /* dest = dest & (~src) : DSna */
BOOL STDCALL NtGdiMaskBlt(HDC hdcDest, INT nXDest, INT nYDest,
INT nWidth, INT nHeight, HDC hdcSrc,
INT nXSrc, INT nYSrc, HBITMAP hbmMask,
INT xMask, INT yMask, DWORD dwRop)
{
HBITMAP hOldMaskBitmap, hBitmap2, hOldBitmap2, hBitmap3, hOldBitmap3;
HDC hDCMask, hDC1, hDC2;
static const DWORD ROP3Table[256] =
{
0x00000042, 0x00010289,
0x00020C89, 0x000300AA,
0x00040C88, 0x000500A9,
0x00060865, 0x000702C5,
0x00080F08, 0x00090245,
0x000A0329, 0x000B0B2A,
0x000C0324, 0x000D0B25,
0x000E08A5, 0x000F0001,
0x00100C85, 0x001100A6,
0x00120868, 0x001302C8,
0x00140869, 0x001502C9,
0x00165CCA, 0x00171D54,
0x00180D59, 0x00191CC8,
0x001A06C5, 0x001B0768,
0x001C06CA, 0x001D0766,
0x001E01A5, 0x001F0385,
0x00200F09, 0x00210248,
0x00220326, 0x00230B24,
0x00240D55, 0x00251CC5,
0x002606C8, 0x00271868,
0x00280369, 0x002916CA,
0x002A0CC9, 0x002B1D58,
0x002C0784, 0x002D060A,
0x002E064A, 0x002F0E2A,
0x0030032A, 0x00310B28,
0x00320688, 0x00330008,
0x003406C4, 0x00351864,
0x003601A8, 0x00370388,
0x0038078A, 0x00390604,
0x003A0644, 0x003B0E24,
0x003C004A, 0x003D18A4,
0x003E1B24, 0x003F00EA,
0x00400F0A, 0x00410249,
0x00420D5D, 0x00431CC4,
0x00440328, 0x00450B29,
0x004606C6, 0x0047076A,
0x00480368, 0x004916C5,
0x004A0789, 0x004B0605,
0x004C0CC8, 0x004D1954,
0x004E0645, 0x004F0E25,
0x00500325, 0x00510B26,
0x005206C9, 0x00530764,
0x005408A9, 0x00550009,
0x005601A9, 0x00570389,
0x00580785, 0x00590609,
0x005A0049, 0x005B18A9,
0x005C0649, 0x005D0E29,
0x005E1B29, 0x005F00E9,
0x00600365, 0x006116C6,
0x00620786, 0x00630608,
0x00640788, 0x00650606,
0x00660046, 0x006718A8,
0x006858A6, 0x00690145,
0x006A01E9, 0x006B178A,
0x006C01E8, 0x006D1785,
0x006E1E28, 0x006F0C65,
0x00700CC5, 0x00711D5C,
0x00720648, 0x00730E28,
0x00740646, 0x00750E26,
0x00761B28, 0x007700E6,
0x007801E5, 0x00791786,
0x007A1E29, 0x007B0C68,
0x007C1E24, 0x007D0C69,
0x007E0955, 0x007F03C9,
0x008003E9, 0x00810975,
0x00820C49, 0x00831E04,
0x00840C48, 0x00851E05,
0x008617A6, 0x008701C5,
0x008800C6, 0x00891B08,
0x008A0E06, 0x008B0666,
0x008C0E08, 0x008D0668,
0x008E1D7C, 0x008F0CE5,
0x00900C45, 0x00911E08,
0x009217A9, 0x009301C4,
0x009417AA, 0x009501C9,
0x00960169, 0x0097588A,
0x00981888, 0x00990066,
0x009A0709, 0x009B07A8,
0x009C0704, 0x009D07A6,
0x009E16E6, 0x009F0345,
0x00A000C9, 0x00A11B05,
0x00A20E09, 0x00A30669,
0x00A41885, 0x00A50065,
0x00A60706, 0x00A707A5,
0x00A803A9, 0x00A90189,
0x00AA0029, 0x00AB0889,
0x00AC0744, 0x00AD06E9,
0x00AE0B06, 0x00AF0229,
0x00B00E05, 0x00B10665,
0x00B21974, 0x00B30CE8,
0x00B4070A, 0x00B507A9,
0x00B616E9, 0x00B70348,
0x00B8074A, 0x00B906E6,
0x00BA0B09, 0x00BB0226,
0x00BC1CE4, 0x00BD0D7D,
0x00BE0269, 0x00BF08C9,
0x00C000CA, 0x00C11B04,
0x00C21884, 0x00C3006A,
0x00C40E04, 0x00C50664,
0x00C60708, 0x00C707AA,
0x00C803A8, 0x00C90184,
0x00CA0749, 0x00CB06E4,
0x00CC0020, 0x00CD0888,
0x00CE0B08, 0x00CF0224,
0x00D00E0A, 0x00D1066A,
0x00D20705, 0x00D307A4,
0x00D41D78, 0x00D50CE9,
0x00D616EA, 0x00D70349,
0x00D80745, 0x00D906E8,
0x00DA1CE9, 0x00DB0D75,
0x00DC0B04, 0x00DD0228,
0x00DE0268, 0x00DF08C8,
0x00E003A5, 0x00E10185,
0x00E20746, 0x00E306EA,
0x00E40748, 0x00E506E5,
0x00E61CE8, 0x00E70D79,
0x00E81D74, 0x00E95CE6,
0x00EA02E9, 0x00EB0849,
0x00EC02E8, 0x00ED0848,
0x00EE0086, 0x00EF0A08,
0x00F00021, 0x00F10885,
0x00F20B05, 0x00F3022A,
0x00F40B0A, 0x00F50225,
0x00F60265, 0x00F708C5,
0x00F802E5, 0x00F90845,
0x00FA0089, 0x00FB0A09,
0x00FC008A, 0x00FD0A0A,
0x00FE02A9, 0x00FF0062,
};
if (!hbmMask)
return NtGdiBitBlt(hdcDest, nXDest, nYDest, nWidth, nHeight, hdcSrc, nXSrc, nYSrc, FRGND_ROP3(dwRop));
/* 1. make mask bitmap's dc */
hDCMask = NtGdiCreateCompatableDC(hdcDest);
hOldMaskBitmap = (HBITMAP)NtGdiSelectObject(hDCMask, hbmMask);
/* 2. make masked Background bitmap */
/* 2.1 make bitmap */
hDC1 = NtGdiCreateCompatableDC(hdcDest);
hBitmap2 = NtGdiCreateCompatibleBitmap(hdcDest, nWidth, nHeight);
hOldBitmap2 = (HBITMAP)NtGdiSelectObject(hDC1, hBitmap2);
/* 2.2 draw dest bitmap and mask */
NtGdiBitBlt(hDC1, 0, 0, nWidth, nHeight, hdcSrc, nXSrc, nYSrc, SRCCOPY);
NtGdiBitBlt(hDC1, 0, 0, nWidth, nHeight, hdcDest, nXDest, nYDest, BKGND_ROP3(dwRop));
NtGdiBitBlt(hDC1, 0, 0, nWidth, nHeight, hDCMask, xMask, yMask, DSTERASE);
/* 3. make masked Foreground bitmap */
/* 3.1 make bitmap */
hDC2 = NtGdiCreateCompatableDC(hdcDest);
hBitmap3 = NtGdiCreateCompatibleBitmap(hdcDest, nWidth, nHeight);
hOldBitmap3 = (HBITMAP)NtGdiSelectObject(hDC2, hBitmap3);
/* 3.2 draw src bitmap and mask */
NtGdiBitBlt(hDC2, 0, 0, nWidth, nHeight, hdcDest, nXDest, nYDest, SRCCOPY);
NtGdiBitBlt(hDC2, 0, 0, nWidth, nHeight, hdcSrc, nXSrc, nYSrc, FRGND_ROP3(dwRop));
NtGdiBitBlt(hDC2, 0, 0, nWidth, nHeight, hDCMask, xMask, yMask, SRCAND);
/* 4. combine two bitmap and copy it to hdcDest */
NtGdiBitBlt(hDC1, 0, 0, nWidth, nHeight, hDC2, 0, 0, SRCPAINT);
NtGdiBitBlt(hdcDest, nXDest, nYDest, nWidth, nHeight, hDC1, 0, 0, SRCCOPY);
/* 5. restore all object */
NtGdiSelectObject(hDCMask, hOldMaskBitmap);
NtGdiSelectObject(hDC1, hOldBitmap2);
NtGdiSelectObject(hDC2, hOldBitmap3);
/* 6. delete all temp object */
NtGdiDeleteObject(hBitmap2);
NtGdiDeleteObject(hBitmap3);
NtGdiDeleteDC(hDC1);
NtGdiDeleteDC(hDC2);
NtGdiDeleteDC(hDCMask);
return TRUE;
}
BOOL STDCALL NtGdiPlgBlt(HDC hDCDest,
CONST POINT *Point,
HDC hDCSrc,
INT XSrc,
INT YSrc,
INT Width,
INT Height,
HBITMAP hMaskBitmap,
INT xMask,
INT yMask)
{
UNIMPLEMENTED;
}
LONG STDCALL NtGdiSetBitmapBits(HBITMAP hBitmap,
DWORD Bytes,
CONST VOID *Bits)
{
LONG height, ret;
PBITMAPOBJ bmp;
bmp = BITMAPOBJ_LockBitmap(hBitmap);
if (bmp == NULL || Bits == NULL)
{
return 0;
}
if (Bytes < 0)
{
DPRINT ("(%ld): Negative number of bytes passed???\n", Bytes );
Bytes = -Bytes;
}
/* Only get entire lines */
height = Bytes / bmp->bitmap.bmWidthBytes;
if (height > bmp->bitmap.bmHeight)
{
height = bmp->bitmap.bmHeight;
}
Bytes = height * bmp->bitmap.bmWidthBytes;
DPRINT ("(%08x, bytes:%ld, bits:%p) %dx%d %d colors fetched height: %ld\n",
hBitmap,
Bytes,
Bits,
bmp->bitmap.bmWidth,
bmp->bitmap.bmHeight,
1 << bmp->bitmap.bmBitsPixel,
height);
#if 0
/* FIXME: call DDI specific function here if available */
if(bmp->DDBitmap)
{
DPRINT ("Calling device specific BitmapBits\n");
if (bmp->DDBitmap->funcs->pBitmapBits)
{
ret = bmp->DDBitmap->funcs->pBitmapBits(hBitmap, (void *) Bits, Bytes, DDB_SET);
}
else
{
DPRINT ("BitmapBits == NULL??\n");
ret = 0;
}
}
else
#endif
{
/* FIXME: Alloc enough for entire bitmap */
if (bmp->bitmap.bmBits == NULL)
{
bmp->bitmap.bmBits = ExAllocatePoolWithTag(PagedPool, Bytes, TAG_BITMAP);
}
if(!bmp->bitmap.bmBits)
{
DPRINT ("Unable to allocate bit buffer\n");
ret = 0;
}
else
{
memcpy(bmp->bitmap.bmBits, Bits, Bytes);
ret = Bytes;
}
}
BITMAPOBJ_UnlockBitmap(hBitmap);
return ret;
}
BOOL STDCALL NtGdiSetBitmapDimensionEx(HBITMAP hBitmap,
INT Width,
INT Height,
LPSIZE Size)
{
PBITMAPOBJ bmp;
bmp = BITMAPOBJ_LockBitmap(hBitmap);
if (bmp == NULL)
{
return FALSE;
}
if (Size)
{
*Size = bmp->dimension;
}
bmp->dimension.cx = Width;
bmp->dimension.cy = Height;
BITMAPOBJ_UnlockBitmap (hBitmap);
return TRUE;
}
COLORREF STDCALL NtGdiSetPixel(HDC hDC,
INT X,
INT Y,
COLORREF Color)
{
COLORREF cr = NtGdiGetPixel(hDC,X,Y);
if(cr != CLR_INVALID && NtGdiSetPixelV(hDC,X,Y,Color))
{
return(cr);
}
return ((COLORREF) -1);
}
BOOL STDCALL NtGdiSetPixelV(HDC hDC,
INT X,
INT Y,
COLORREF Color)
{
HBRUSH NewBrush = NtGdiCreateSolidBrush(Color);
HGDIOBJ OldBrush;
if (NewBrush == NULL)
return(FALSE);
OldBrush = NtGdiSelectObject(hDC, NewBrush);
if (OldBrush == NULL)
return(FALSE);
NtGdiPatBlt(hDC, X, Y, 1, 1, PATCOPY);
NtGdiSelectObject(hDC, OldBrush);
NtGdiDeleteObject(NewBrush);
return TRUE;
}
BOOL STDCALL NtGdiStretchBlt(HDC hDCDest,
INT XOriginDest,
INT YOriginDest,
INT WidthDest,
INT HeightDest,
HDC hDCSrc,
INT XOriginSrc,
INT YOriginSrc,
INT WidthSrc,
INT HeightSrc,
DWORD ROP)
{
PDC DCDest = NULL;
PDC DCSrc = NULL;
PSURFOBJ SurfDest, SurfSrc;
PSURFGDI SurfGDIDest, SurfGDISrc;
RECTL DestRect;
RECTL SourceRect;
BOOL Status;
PPALGDI PalDestGDI, PalSourceGDI;
PXLATEOBJ XlateObj = NULL;
HPALETTE SourcePalette, DestPalette;
ULONG SourceMode, DestMode;
PBRUSHOBJ BrushObj;
BOOL UsesSource = ((ROP & 0xCC0000) >> 2) != (ROP & 0x330000);
BOOL UsesPattern = ((ROP & 0xF00000) >> 4) != (ROP & 0x0F0000);
if (0 == WidthDest || 0 == HeightDest || 0 == WidthSrc || 0 == HeightSrc)
{
SetLastWin32Error(ERROR_INVALID_PARAMETER);
return FALSE;
}
DCDest = DC_LockDc(hDCDest);
if (NULL == DCDest)
{
DPRINT1("Invalid destination dc handle (0x%08x) passed to NtGdiStretchBlt\n", hDCDest);
SetLastWin32Error(ERROR_INVALID_HANDLE);
return FALSE;
}
if (UsesSource)
{
if (hDCSrc != hDCDest)
{
DCSrc = DC_LockDc(hDCSrc);
if (NULL == DCSrc)
{
DC_UnlockDc(hDCDest);
DPRINT1("Invalid source dc handle (0x%08x) passed to NtGdiStretchBlt\n", hDCSrc);
SetLastWin32Error(ERROR_INVALID_HANDLE);
return FALSE;
}
}
else
{
DCSrc = DCDest;
}
}
else
{
DCSrc = NULL;
}
/* Offset the destination and source by the origin of their DCs. */
XOriginDest += DCDest->w.DCOrgX;
YOriginDest += DCDest->w.DCOrgY;
if (UsesSource)
{
XOriginSrc += DCSrc->w.DCOrgX;
YOriginSrc += DCSrc->w.DCOrgY;
}
DestRect.left = XOriginDest;
DestRect.top = YOriginDest;
DestRect.right = XOriginDest+WidthDest;
DestRect.bottom = YOriginDest+HeightDest;
SourceRect.left = XOriginSrc;
SourceRect.top = YOriginSrc;
SourceRect.right = XOriginSrc+WidthSrc;
SourceRect.bottom = YOriginSrc+HeightSrc;
/* Determine surfaces to be used in the bitblt */
SurfDest = (PSURFOBJ)AccessUserObject((ULONG)DCDest->Surface);
SurfGDIDest = (PSURFGDI)AccessInternalObjectFromUserObject(SurfDest);
if (UsesSource)
{
SurfSrc = (PSURFOBJ)AccessUserObject((ULONG)DCSrc->Surface);
SurfGDISrc = (PSURFGDI)AccessInternalObjectFromUserObject(SurfSrc);
}
else
{
SurfSrc = NULL;
SurfGDISrc = NULL;
}
if (UsesPattern)
{
BrushObj = BRUSHOBJ_LockBrush(DCDest->w.hBrush);
if (NULL == BrushObj)
{
if (UsesSource && hDCSrc != hDCDest)
{
DC_UnlockDc(hDCSrc);
}
DC_UnlockDc(hDCDest);
SetLastWin32Error(ERROR_INVALID_HANDLE);
return FALSE;
}
}
else
{
BrushObj = NULL;
}
if (DCDest->w.hPalette != 0)
{
DestPalette = DCDest->w.hPalette;
}
else
{
DestPalette = NtGdiGetStockObject(DEFAULT_PALETTE);
}
if (UsesSource && DCSrc->w.hPalette != 0)
{
SourcePalette = DCSrc->w.hPalette;
}
else
{
SourcePalette = NtGdiGetStockObject(DEFAULT_PALETTE);
}
PalSourceGDI = PALETTE_LockPalette(SourcePalette);
if (NULL == PalSourceGDI)
{
if (UsesSource && hDCSrc != hDCDest)
{
DC_UnlockDc(hDCSrc);
}
DC_UnlockDc(hDCDest);
SetLastWin32Error(ERROR_INVALID_HANDLE);
return FALSE;
}
SourceMode = PalSourceGDI->Mode;
PALETTE_UnlockPalette(SourcePalette);
if (DestPalette == SourcePalette)
{
DestMode = SourceMode;
}
else
{
PalDestGDI = PALETTE_LockPalette(DestPalette);
if (NULL == PalDestGDI)
{
if (UsesSource && hDCSrc != hDCDest)
{
DC_UnlockDc(hDCSrc);
}
DC_UnlockDc(hDCDest);
SetLastWin32Error(ERROR_INVALID_HANDLE);
return FALSE;
}
DestMode = PalDestGDI->Mode;
PALETTE_UnlockPalette(DestPalette);
}
XlateObj = (PXLATEOBJ)IntEngCreateXlate(DestMode, SourceMode, DestPalette, SourcePalette);
if (NULL == XlateObj)
{
if (UsesSource && hDCSrc != hDCDest)
{
DC_UnlockDc(hDCSrc);
}
DC_UnlockDc(hDCDest);
SetLastWin32Error(ERROR_NO_SYSTEM_RESOURCES);
return FALSE;
}
/* Perform the bitblt operation */
Status = IntEngStretchBlt(SurfDest, SurfSrc, NULL, DCDest->CombinedClip,
XlateObj, &DestRect, &SourceRect, NULL, NULL, NULL, COLORONCOLOR);
EngDeleteXlate(XlateObj);
if (UsesPattern)
{
BRUSHOBJ_UnlockBrush(DCDest->w.hBrush);
}
if (UsesSource && hDCSrc != hDCDest)
{
DC_UnlockDc(hDCSrc);
}
DC_UnlockDc(hDCDest);
return Status;
}
/* Internal Functions */
INT FASTCALL
BITMAPOBJ_GetWidthBytes (INT bmWidth, INT bpp)
{
#if 0
switch(bpp)
{
case 1:
return 2 * ((bmWidth+15) >> 4);
case 24:
bmWidth *= 3; /* fall through */
case 8:
return bmWidth + (bmWidth & 1);
case 32:
return bmWidth * 4;
case 16:
case 15:
return bmWidth * 2;
case 4:
return 2 * ((bmWidth+3) >> 2);
default:
DPRINT ("stub");
}
return -1;
#endif
return ((bmWidth * bpp + 31) & ~31) >> 3;
}
HBITMAP FASTCALL BITMAPOBJ_CopyBitmap(HBITMAP hBitmap)
{
PBITMAPOBJ bmp;
HBITMAP res;
BITMAP bm;
bmp = BITMAPOBJ_LockBitmap(hBitmap);
if (bmp == NULL)
{
return 0;
}
res = 0;
bm = bmp->bitmap;
bm.bmBits = NULL;
BITMAPOBJ_UnlockBitmap(hBitmap);
res = NtGdiCreateBitmapIndirect(&bm);
if(res)
{
char *buf;
buf = ExAllocatePoolWithTag (NonPagedPool, bm.bmWidthBytes * bm.bmHeight, TAG_BITMAP);
NtGdiGetBitmapBits (hBitmap, bm.bmWidthBytes * bm.bmHeight, buf);
NtGdiSetBitmapBits (res, bm.bmWidthBytes * bm.bmHeight, buf);
ExFreePool (buf);
}
return res;
}
INT STDCALL BITMAP_GetObject(BITMAPOBJ * bmp, INT count, LPVOID buffer)
{
if(bmp->dib)
{
if(count < (INT) sizeof(DIBSECTION))
{
if (count > (INT) sizeof(BITMAP)) count = sizeof(BITMAP);
}
else
{
if (count > (INT) sizeof(DIBSECTION)) count = sizeof(DIBSECTION);
}
memcpy(buffer, bmp->dib, count);
return count;
}
else
{
if (count > (INT) sizeof(BITMAP)) count = sizeof(BITMAP);
memcpy(buffer, &bmp->bitmap, count);
return count;
}
}
/* EOF */