wine/dlls/gdi/bitblt.c
Huw Davies 9277cf199f Fix maskblt to work with any set of rops and to also take into account
the current brush.  It also now works if the mask bitmap is already
selected into a dc.
2004-08-11 18:51:10 +00:00

433 lines
14 KiB
C

/*
* GDI bit-blit operations
*
* Copyright 1993, 1994 Alexandre Julliard
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "gdi.h"
#include "gdi_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(bitblt);
/***********************************************************************
* PatBlt (GDI32.@)
*/
BOOL WINAPI PatBlt( HDC hdc, INT left, INT top,
INT width, INT height, DWORD rop)
{
DC * dc = DC_GetDCUpdate( hdc );
BOOL bRet = FALSE;
if (!dc) return FALSE;
if (dc->funcs->pPatBlt)
{
TRACE("%p %d,%d %dx%d %06lx\n", hdc, left, top, width, height, rop );
bRet = dc->funcs->pPatBlt( dc->physDev, left, top, width, height, rop );
}
GDI_ReleaseObj( hdc );
return bRet;
}
/***********************************************************************
* BitBlt (GDI32.@)
*/
BOOL WINAPI BitBlt( HDC hdcDst, INT xDst, INT yDst, INT width,
INT height, HDC hdcSrc, INT xSrc, INT ySrc, DWORD rop )
{
BOOL ret = FALSE;
DC *dcDst, *dcSrc;
if ((dcSrc = DC_GetDCUpdate( hdcSrc ))) GDI_ReleaseObj( hdcSrc );
/* FIXME: there is a race condition here */
if ((dcDst = DC_GetDCUpdate( hdcDst )))
{
dcSrc = DC_GetDCPtr( hdcSrc );
TRACE("hdcSrc=%p %d,%d -> hdcDest=%p %d,%d %dx%d rop=%06lx\n",
hdcSrc, xSrc, ySrc, hdcDst, xDst, yDst, width, height, rop);
if (dcDst->funcs->pBitBlt)
ret = dcDst->funcs->pBitBlt( dcDst->physDev, xDst, yDst, width, height,
dcSrc ? dcSrc->physDev : NULL, xSrc, ySrc, rop );
if (dcSrc) GDI_ReleaseObj( hdcSrc );
GDI_ReleaseObj( hdcDst );
}
return ret;
}
/***********************************************************************
* StretchBlt (GDI32.@)
*/
BOOL WINAPI StretchBlt( HDC hdcDst, INT xDst, INT yDst,
INT widthDst, INT heightDst,
HDC hdcSrc, INT xSrc, INT ySrc,
INT widthSrc, INT heightSrc,
DWORD rop )
{
BOOL ret = FALSE;
DC *dcDst, *dcSrc;
if ((dcSrc = DC_GetDCUpdate( hdcSrc ))) GDI_ReleaseObj( hdcSrc );
/* FIXME: there is a race condition here */
if ((dcDst = DC_GetDCUpdate( hdcDst )))
{
dcSrc = DC_GetDCPtr( hdcSrc );
TRACE("%p %d,%d %dx%d -> %p %d,%d %dx%d rop=%06lx\n",
hdcSrc, xSrc, ySrc, widthSrc, heightSrc,
hdcDst, xDst, yDst, widthDst, heightDst, rop );
if (dcSrc) {
if (dcDst->funcs->pStretchBlt)
ret = dcDst->funcs->pStretchBlt( dcDst->physDev, xDst, yDst, widthDst, heightDst,
dcSrc->physDev, xSrc, ySrc, widthSrc, heightSrc,
rop );
GDI_ReleaseObj( hdcSrc );
}
GDI_ReleaseObj( hdcDst );
}
return ret;
}
#define FRGND_ROP3(ROP4) ((ROP4) & 0x00FFFFFF)
#define BKGND_ROP3(ROP4) (ROP3Table[((ROP4)>>24) & 0xFF])
/***********************************************************************
* MaskBlt [GDI32.@]
*/
BOOL WINAPI MaskBlt(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 hBitmap1, hOldBitmap1, hBitmap2, hOldBitmap2;
HDC hDC1, hDC2;
HBRUSH hbrMask, hbrDst, hbrTmp;
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 BitBlt(hdcDest, nXDest, nYDest, nWidth, nHeight, hdcSrc, nXSrc, nYSrc, FRGND_ROP3(dwRop));
hbrMask = CreatePatternBrush(hbmMask);
hbrDst = SelectObject(hdcDest, GetStockObject(NULL_BRUSH));
/* make bitmap */
hDC1 = CreateCompatibleDC(hdcDest);
hBitmap1 = CreateCompatibleBitmap(hdcDest, nWidth, nHeight);
hOldBitmap1 = SelectObject(hDC1, hBitmap1);
/* draw using bkgnd rop */
BitBlt(hDC1, 0, 0, nWidth, nHeight, hdcDest, nXDest, nYDest, SRCCOPY);
hbrTmp = SelectObject(hDC1, hbrDst);
BitBlt(hDC1, 0, 0, nWidth, nHeight, hdcSrc, nXSrc, nYSrc, BKGND_ROP3(dwRop));
SelectObject(hDC1, hbrTmp);
/* make bitmap */
hDC2 = CreateCompatibleDC(hdcDest);
hBitmap2 = CreateCompatibleBitmap(hdcDest, nWidth, nHeight);
hOldBitmap2 = SelectObject(hDC2, hBitmap2);
/* draw using foregnd rop */
BitBlt(hDC2, 0, 0, nWidth, nHeight, hdcDest, nXDest, nYDest, SRCCOPY);
hbrTmp = SelectObject(hDC2, hbrDst);
BitBlt(hDC2, 0, 0, nWidth, nHeight, hdcSrc, nXSrc, nYSrc, FRGND_ROP3(dwRop));
/* combine both using the mask as a pattern brush */
SelectObject(hDC2, hbrMask);
BitBlt(hDC2, 0, 0, nWidth, nHeight, hDC1, 0, 0, 0xac0744 ); /* (D & P) | (S & ~P) */
SelectObject(hDC2, hbrTmp);
/* blit to dst */
BitBlt(hdcDest, nXDest, nYDest, nWidth, nHeight, hDC2, 0, 0, SRCCOPY);
/* restore all objects */
SelectObject(hdcDest, hbrDst);
SelectObject(hDC1, hOldBitmap1);
SelectObject(hDC2, hOldBitmap2);
/* delete all temp objects */
DeleteObject(hBitmap1);
DeleteObject(hBitmap1);
DeleteObject(hbrMask);
DeleteDC(hDC1);
DeleteDC(hDC2);
return TRUE;
}
/******************************************************************************
* GdiTransparentBlt [GDI32.@]
*/
BOOL WINAPI GdiTransparentBlt( HDC hdcDest, int xDest, int yDest, int widthDest, int heightDest,
HDC hdcSrc, int xSrc, int ySrc, int widthSrc, int heightSrc,
UINT crTransparent )
{
BOOL ret = FALSE;
HDC hdcWork;
HBITMAP bmpWork;
HGDIOBJ oldWork;
HDC hdcMask = NULL;
HBITMAP bmpMask = NULL;
HBITMAP oldMask = NULL;
COLORREF oldBackground;
COLORREF oldForeground;
int oldStretchMode;
if(widthDest < 0 || heightDest < 0 || widthSrc < 0 || heightSrc < 0) {
TRACE("Can not mirror\n");
return FALSE;
}
oldBackground = SetBkColor(hdcDest, RGB(255,255,255));
oldForeground = SetTextColor(hdcDest, RGB(0,0,0));
/* Stretch bitmap */
oldStretchMode = GetStretchBltMode(hdcSrc);
if(oldStretchMode == BLACKONWHITE || oldStretchMode == WHITEONBLACK)
SetStretchBltMode(hdcSrc, COLORONCOLOR);
hdcWork = CreateCompatibleDC(hdcDest);
bmpWork = CreateCompatibleBitmap(hdcDest, widthDest, heightDest);
oldWork = SelectObject(hdcWork, bmpWork);
if(!StretchBlt(hdcWork, 0, 0, widthDest, heightDest, hdcSrc, xSrc, ySrc, widthSrc, heightSrc, SRCCOPY)) {
TRACE("Failed to stretch\n");
goto error;
}
SetBkColor(hdcWork, crTransparent);
/* Create mask */
hdcMask = CreateCompatibleDC(hdcDest);
bmpMask = CreateCompatibleBitmap(hdcMask, widthDest, heightDest);
oldMask = SelectObject(hdcMask, bmpMask);
if(!BitBlt(hdcMask, 0, 0, widthDest, heightDest, hdcWork, 0, 0, SRCCOPY)) {
TRACE("Failed to create mask\n");
goto error;
}
/* Replace transparent color with black */
SetBkColor(hdcWork, RGB(0,0,0));
SetTextColor(hdcWork, RGB(255,255,255));
if(!BitBlt(hdcWork, 0, 0, widthDest, heightDest, hdcMask, 0, 0, SRCAND)) {
TRACE("Failed to mask out background\n");
goto error;
}
/* Replace non-transparent area on destination with black */
if(!BitBlt(hdcDest, xDest, yDest, widthDest, heightDest, hdcMask, 0, 0, SRCAND)) {
TRACE("Failed to clear destination area\n");
goto error;
}
/* Draw the image */
if(!BitBlt(hdcDest, xDest, yDest, widthDest, heightDest, hdcWork, 0, 0, SRCPAINT)) {
TRACE("Failed to paint image\n");
goto error;
}
ret = TRUE;
error:
SetStretchBltMode(hdcSrc, oldStretchMode);
SetBkColor(hdcDest, oldBackground);
SetTextColor(hdcDest, oldForeground);
if(hdcWork) {
SelectObject(hdcWork, oldWork);
DeleteDC(hdcWork);
}
if(bmpWork) DeleteObject(bmpWork);
if(hdcMask) {
SelectObject(hdcMask, oldMask);
DeleteDC(hdcMask);
}
if(bmpMask) DeleteObject(bmpMask);
return ret;
}
/******************************************************************************
* GdiAlphaBlend [GDI32.@]
*/
BOOL WINAPI GdiAlphaBlend(HDC hdcDst, int xDst, int yDst, int widthDst, int heightDst,
HDC hdcSrc, int xSrc, int ySrc, int widthSrc, int heightSrc,
BLENDFUNCTION blendFunction)
{
BOOL ret = FALSE;
DC *dcDst, *dcSrc;
if ((dcSrc = DC_GetDCUpdate( hdcSrc ))) GDI_ReleaseObj( hdcSrc );
/* FIXME: there is a race condition here */
if ((dcDst = DC_GetDCUpdate( hdcDst )))
{
dcSrc = DC_GetDCPtr( hdcSrc );
TRACE("%p %d,%d %dx%d -> %p %d,%d %dx%d op=%02x flags=%02x srcconstalpha=%02x alphafmt=%02x\n",
hdcSrc, xSrc, ySrc, widthSrc, heightSrc,
hdcDst, xDst, yDst, widthDst, heightDst,
blendFunction.BlendOp, blendFunction.BlendFlags,
blendFunction.SourceConstantAlpha, blendFunction.AlphaFormat);
if (dcDst->funcs->pAlphaBlend)
ret = dcDst->funcs->pAlphaBlend( dcDst->physDev, xDst, yDst, widthDst, heightDst,
dcSrc ? dcSrc->physDev : NULL,
xSrc, ySrc, widthSrc, heightSrc, blendFunction );
if (dcSrc) GDI_ReleaseObj( hdcSrc );
GDI_ReleaseObj( hdcDst );
}
return ret;
}
/*********************************************************************
* PlgBlt [GDI32.@]
*
*/
BOOL WINAPI PlgBlt( HDC hdcDest, const POINT *lpPoint,
HDC hdcSrc, INT nXDest, INT nYDest, INT nWidth,
INT nHeight, HBITMAP hbmMask, INT xMask, INT yMask)
{
FIXME("PlgBlt, stub\n");
return 1;
}