| /* |
| * GDI bit-blit operations |
| * |
| * Copyright 1993 Alexandre Julliard |
| * |
| static char Copyright[] = "Copyright Alexandre Julliard, 1993"; |
| */ |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <X11/Xlib.h> |
| #include <X11/Intrinsic.h> |
| #include "windows.h" |
| #include "dc.h" |
| #include "gdi.h" |
| #include "color.h" |
| #include "metafile.h" |
| #include "options.h" |
| #include "stddebug.h" |
| /* #define DEBUG_GDI */ |
| #include "debug.h" |
| |
| #define MIN(a,b) ((a) < (b) ? (a) : (b)) |
| #define MAX(a,b) ((a) > (b) ? (a) : (b)) |
| |
| /*********************************************************************** |
| * BITBLT_GetImage |
| */ |
| static XImage *BITBLT_GetImage( HDC hdc, int x, int y, int width, int height ) |
| { |
| XImage *image; |
| RECT rect; |
| DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ); |
| |
| GetClipBox( hdc, &rect ); |
| OffsetRect( &rect, dc->w.DCOrgX, dc->w.DCOrgY ); |
| if ((x >= rect.left) && (y >= rect.top) |
| && (x+width < rect.right) && (y+height < rect.bottom)) |
| { |
| image = XGetImage( display, dc->u.x.drawable, x, y, width, height, |
| AllPlanes, ZPixmap ); |
| } |
| else /* Get only the visible sub-image */ |
| { |
| int width_bytes = ((dc->w.bitsPerPixel == 24 ? 32 : dc->w.bitsPerPixel) |
| * width + 31) / 32 * 4; |
| char *data = malloc( height * width_bytes ); |
| image = XCreateImage( display, DefaultVisualOfScreen(screen), |
| dc->w.bitsPerPixel, ZPixmap, 0, data, |
| width, height, 32, width_bytes ); |
| if (image && !IsRectEmpty(&rect)) |
| { |
| int x1, y1, x2, y2; |
| x1 = max( x, rect.left ); |
| y1 = max( y, rect.top ); |
| x2 = min( x + width, rect.right ); |
| y2 = min( y + height, rect.bottom ); |
| if ((x1 < x2) && (y1 < y2)) |
| XGetSubImage( display, dc->u.x.drawable, x1, y1, x2-x1, y2-y1, |
| AllPlanes, ZPixmap, image, x1-x, y1-y ); |
| } |
| } |
| return image; |
| } |
| |
| |
| /*********************************************************************** |
| * PatBlt (GDI.29) |
| */ |
| BOOL PatBlt( HDC hdc, short left, short top, |
| short width, short height, DWORD rop) |
| { |
| DC * dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ); |
| if (!dc) |
| { |
| dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC); |
| if (!dc) return FALSE; |
| MF_MetaParam6(dc, META_PATBLT, left, top, width, height, |
| HIWORD(rop), LOWORD(rop)); |
| return TRUE; |
| } |
| |
| dprintf_gdi(stddeb, "PatBlt: %d %d,%d %dx%d %06lx\n", |
| hdc, left, top, width, height, rop ); |
| |
| /* Convert ROP3 code to ROP2 code */ |
| rop >>= 16; |
| if (!DC_SetupGCForBrush( dc )) rop &= 0x0f; |
| else rop = (rop & 0x03) | ((rop >> 4) & 0x0c); |
| |
| /* Special case for BLACKNESS and WHITENESS */ |
| if (!Options.usePrivateMap && ((rop == R2_BLACK-1) || (rop == R2_WHITE-1))) |
| { |
| XSetForeground( display, dc->u.x.gc, (rop == R2_BLACK-1) ? |
| BlackPixelOfScreen(screen) : WhitePixelOfScreen(screen)); |
| XSetFillStyle( display, dc->u.x.gc, FillSolid ); |
| rop = R2_COPYPEN; |
| } |
| |
| XSetFunction( display, dc->u.x.gc, DC_XROPfunction[rop] ); |
| |
| left = dc->w.DCOrgX + XLPTODP( dc, left ); |
| top = dc->w.DCOrgY + YLPTODP( dc, top ); |
| |
| /* Convert dimensions to device coords */ |
| if ((width = (width * dc->w.VportExtX) / dc->w.WndExtX) < 0) |
| { |
| width = -width; |
| left -= width; |
| } |
| if ((height = (height * dc->w.VportExtY) / dc->w.WndExtY) < 0) |
| { |
| height = -height; |
| top -= height; |
| } |
| |
| XFillRectangle( display, dc->u.x.drawable, dc->u.x.gc, |
| left, top, width, height ); |
| return TRUE; |
| } |
| |
| |
| /*********************************************************************** |
| * BitBlt (GDI.34) |
| */ |
| BOOL BitBlt( HDC hdcDest, short xDest, short yDest, short width, short height, |
| HDC hdcSrc, short xSrc, short ySrc, DWORD rop ) |
| { |
| int xs1, xs2, ys1, ys2; |
| int xd1, xd2, yd1, yd2; |
| DWORD saverop = rop; |
| DC *dcDest, *dcSrc; |
| |
| dprintf_gdi(stddeb, "BitBlt: %04x %d,%d %dx%d %04x %d,%d %06lx\n", |
| hdcDest, xDest, yDest, width, height, hdcSrc, xSrc, ySrc, rop); |
| |
| if (width == 0 || height == 0) return FALSE; |
| if ((rop & 0xcc0000) == ((rop & 0x330000) << 2)) |
| return PatBlt( hdcDest, xDest, yDest, width, height, rop ); |
| |
| rop >>= 16; |
| |
| dcSrc = (DC *) GDI_GetObjPtr( hdcSrc, DC_MAGIC ); |
| if (!dcSrc) return FALSE; |
| dcDest = (DC *) GDI_GetObjPtr( hdcDest, DC_MAGIC ); |
| if (!dcDest) |
| { |
| dcDest = (DC *)GDI_GetObjPtr(hdcDest, METAFILE_DC_MAGIC); |
| if (!dcDest) return FALSE; |
| MF_BitBlt(dcDest, xDest, yDest, width, height, |
| hdcSrc, xSrc, ySrc, saverop); |
| return TRUE; |
| } |
| |
| xs1 = dcSrc->w.DCOrgX + XLPTODP( dcSrc, xSrc ); |
| xs2 = dcSrc->w.DCOrgX + XLPTODP( dcSrc, xSrc + width ); |
| ys1 = dcSrc->w.DCOrgY + YLPTODP( dcSrc, ySrc ); |
| ys2 = dcSrc->w.DCOrgY + YLPTODP( dcSrc, ySrc + height ); |
| xd1 = dcDest->w.DCOrgX + XLPTODP( dcDest, xDest ); |
| xd2 = dcDest->w.DCOrgX + XLPTODP( dcDest, xDest + width ); |
| yd1 = dcDest->w.DCOrgY + YLPTODP( dcDest, yDest ); |
| yd2 = dcDest->w.DCOrgY + YLPTODP( dcDest, yDest + height ); |
| |
| if ((abs(xs2-xs1) != abs(xd2-xd1)) || (abs(ys2-ys1) != abs(yd2-yd1))) |
| return FALSE; /* Should call StretchBlt here */ |
| |
| DC_SetupGCForText( dcDest ); |
| if (((rop & 0x0f) == (rop >> 4))&&(rop!=0xbb)) |
| /* FIXME: Test, whether more than just 0xbb has to be excluded */ |
| { |
| XSetFunction( display, dcDest->u.x.gc, DC_XROPfunction[rop & 0x0f] ); |
| if (dcSrc->w.bitsPerPixel == dcDest->w.bitsPerPixel) |
| { |
| XCopyArea( display, dcSrc->u.x.drawable, |
| dcDest->u.x.drawable, dcDest->u.x.gc, |
| min(xs1,xs2), min(ys1,ys2), abs(xs2-xs1), abs(ys2-ys1), |
| min(xd1,xd2), min(yd1,yd2) ); |
| } |
| else |
| { |
| if (dcSrc->w.bitsPerPixel != 1) return FALSE; |
| XCopyPlane( display, dcSrc->u.x.drawable, |
| dcDest->u.x.drawable, dcDest->u.x.gc, |
| min(xs1,xs2), min(ys1,ys2), abs(xs2-xs1), abs(ys2-ys1), |
| min(xd1,xd2), min(yd1,yd2), 1 ); |
| } |
| } |
| else |
| { |
| XImage *sxi, *dxi, *bxi; |
| int x,y,s,d,p,res,ofs,i,cp,cs,cd,cres; |
| XColor sentry,dentry,pentry,entry; |
| long colors[256]; |
| |
| /* HDC hdcBrush = CreateCompatibleDC(hdcDest); |
| DC *dcBrush;*/ |
| RECT r = {min(xDest,xDest+width), min(yDest,yDest+height), |
| MAX(xDest,xDest+width), MAX(yDest,yDest+height)}; |
| HBRUSH cur_brush=SelectObject(hdcDest, GetStockObject(BLACK_BRUSH)); |
| SelectObject(hdcDest, cur_brush); |
| /* FillRect(hdcBrush, &r, cur_brush);*/ |
| sxi = BITBLT_GetImage( hdcSrc, min(xs1,xs2), min(ys1,ys2), |
| abs(xs2-xs1), abs(ys2-ys1) ); |
| dxi = BITBLT_GetImage( hdcDest, min(xd1,xd2), min(yd1,yd2), |
| abs(xs2-xs1), abs(ys2-ys1) ); |
| /* dcBrush = (DC *) GDI_GetObjPtr( hdcBrush, DC_MAGIC );*/ |
| /* bxi=XGetImage(display, dcBrush->u.x.drawable, min(xd1,xd2),min(yd1,yd2), |
| abs(xs2-xs1), abs(ys2-ys1), AllPlanes, ZPixmap);*/ |
| /* FIXME: It's really not necessary to do this on the visible screen */ |
| FillRect(hdcDest, &r, cur_brush); |
| bxi = BITBLT_GetImage( hdcDest, min(xd1,xd2), min(yd1,yd2), |
| abs(xs2-xs1), abs(ys2-ys1) ); |
| for (i=0; i<min(256,1<<(dcDest->w.bitsPerPixel)); i++) |
| { |
| entry.pixel = i; |
| XQueryColor ( display, COLOR_WinColormap, &entry); |
| colors[i] = (int) RGB( entry.red>>8, entry.green>>8, entry.blue>>8 ); |
| } |
| if (dcSrc->w.bitsPerPixel == dcDest->w.bitsPerPixel) |
| { |
| for(x=0; x<abs(xs2-xs1); x++) |
| { |
| for(y=0; y<abs(ys2-ys1); y++) |
| { |
| s = XGetPixel(sxi, x, y); |
| d = XGetPixel(dxi, x, y); |
| p = XGetPixel(bxi, x, y); |
| if (s<256) |
| cs=colors[s]; |
| else |
| { |
| sentry.pixel = s; |
| XQueryColor ( display, COLOR_WinColormap, &sentry); |
| cs = (int) RGB( sentry.red>>8,sentry.green>>8, sentry.blue>>8 ); |
| } |
| if (d<256) |
| cd=colors[d]; |
| else |
| { |
| dentry.pixel = d; |
| XQueryColor ( display, COLOR_WinColormap, &dentry); |
| cd = (int) RGB( dentry.red>>8, dentry.green>>8,dentry.blue>>8 ); |
| } |
| if (p<256) |
| cp=colors[p]; |
| else |
| { |
| pentry.pixel = p; |
| XQueryColor ( display, COLOR_WinColormap, &pentry); |
| cp = (int) RGB( pentry.red>>8, pentry.green>>8,pentry.blue>>8 ); |
| } |
| cres = 0; |
| for(i=0; i<24; i++) |
| { |
| ofs=1<<(((cp>>i)&1)*4+((cs>>i)&1)*2+((cd>>i)&1)); |
| if (rop & ofs) |
| cres |= (1<<i); |
| } |
| if (cres==cs) |
| res=s; |
| else if (cres==cd) |
| res=d; |
| else if (cres==cp) |
| res=p; |
| else |
| { |
| res = -1; |
| for (i=0; i<min(256,1<<(dcDest->w.bitsPerPixel)); i++) |
| if (colors[i]==cres) |
| { |
| res = i; |
| break; |
| } |
| if (res == -1) |
| res = GetNearestPaletteIndex(dcDest->w.hPalette, res); |
| } |
| XPutPixel(dxi, x, y, res); |
| } |
| } |
| } |
| else |
| fprintf(stderr,"BitBlt // depths different!\n"); |
| XPutImage(display, dcDest->u.x.drawable, dcDest->u.x.gc, |
| dxi, 0, 0, min(xd1,xd2), min(yd1,yd2), abs(xs2-xs1), abs(ys2-ys1)+38); |
| XDestroyImage(sxi); |
| XDestroyImage(dxi); |
| XDestroyImage(bxi); |
| /*DeleteDC(hdcBrush);*/ |
| } |
| return TRUE; |
| } |
| |
| |
| |
| /*********************************************************************** |
| * black on white stretch -- favors color pixels over white |
| * |
| */ |
| static void bonw_stretch(XImage *sxi, XImage *dxi, |
| short widthSrc, short heightSrc, short widthDest, short heightDest) |
| { |
| float deltax, deltay, sourcex, sourcey, oldsourcex, oldsourcey; |
| register int x, y; |
| Pixel whitep; |
| int totalx, totaly, xavgwhite, yavgwhite; |
| register int i; |
| int endx, endy; |
| |
| deltax = (float)widthSrc/widthDest; |
| deltay = (float)heightSrc/heightDest; |
| whitep = WhitePixel(display, DefaultScreen(display)); |
| |
| oldsourcex = 0; |
| for (x=0, sourcex=0.0; x<widthDest; |
| x++, oldsourcex=sourcex, sourcex+=deltax) { |
| xavgwhite = 0; |
| if (deltax > 1.0) { |
| totalx = 0; |
| endx = (int)sourcex; |
| for (i=(int)oldsourcex; i<=endx; i++) |
| if (XGetPixel(sxi, i, (int)sourcey) == whitep) |
| totalx++; |
| xavgwhite = (totalx > (int)(deltax / 2.0)); |
| } else { |
| xavgwhite = 0; |
| } |
| |
| oldsourcey = 0; |
| for (y=0, sourcey=0.0; y<heightDest; |
| y++, oldsourcey=sourcey, sourcey+=deltay) { |
| yavgwhite = 0; |
| if (deltay > 1.0) { |
| totaly = 0; |
| endy = (int)sourcey; |
| for (i=(int)oldsourcey; i<=endy; i++) |
| if (XGetPixel(sxi, (int)sourcex, i) == whitep) |
| totaly++; |
| yavgwhite = (totaly > ((int)deltay / 2)); |
| } else { |
| yavgwhite = 0; |
| } |
| if (xavgwhite && yavgwhite) |
| XPutPixel(dxi, x, y, whitep); |
| else |
| XPutPixel(dxi, x, y, XGetPixel(sxi, (int)sourcex, (int)sourcey)); |
| |
| } /* for all y in dest */ |
| } /* for all x in dest */ |
| |
| } |
| |
| /*********************************************************************** |
| * white on black stretch -- favors color pixels over black |
| * |
| */ |
| static void wonb_stretch(XImage *sxi, XImage *dxi, |
| short widthSrc, short heightSrc, short widthDest, short heightDest) |
| { |
| float deltax, deltay, sourcex, sourcey, oldsourcex, oldsourcey; |
| register int x, y; |
| Pixel blackp; |
| int totalx, totaly, xavgblack, yavgblack; |
| register int i; |
| int endx, endy; |
| |
| deltax = (float)widthSrc/widthDest; |
| deltay = (float)heightSrc/heightDest; |
| blackp = WhitePixel(display, DefaultScreen(display)); |
| |
| oldsourcex = 0; |
| for (x=0, sourcex=0.0; x<widthDest; |
| x++, oldsourcex=sourcex, sourcex+=deltax) { |
| xavgblack = 0; |
| if (deltax > 1.0) { |
| totalx = 0; |
| endx = (int)sourcex; |
| for (i=(int)oldsourcex; i<=endx; i++) |
| if (XGetPixel(sxi, i, (int)sourcey) == blackp) |
| totalx++; |
| xavgblack = (totalx > (int)(deltax / 2.0)); |
| } else { |
| xavgblack = 0; |
| } |
| |
| oldsourcey = 0; |
| for (y=0, sourcey=0.0; y<heightDest; |
| y++, oldsourcey=sourcey, sourcey+=deltay) { |
| yavgblack = 0; |
| if (deltay > 1.0) { |
| totaly = 0; |
| endy = (int)sourcey; |
| for (i=(int)oldsourcey; i<=endy; i++) |
| if (XGetPixel(sxi, (int)sourcex, i) == blackp) |
| totaly++; |
| yavgblack = (totaly > ((int)deltay / 2)); |
| } else { |
| yavgblack = 0; |
| } |
| if (xavgblack && yavgblack) |
| XPutPixel(dxi, x, y, blackp); |
| else |
| XPutPixel(dxi, x, y, XGetPixel(sxi, (int)sourcex, (int)sourcey)); |
| |
| } /* for all y in dest */ |
| } /* for all x in dest */ |
| } |
| |
| /* We use the 32-bit to 64-bit multiply and 64-bit to 32-bit divide of the */ |
| /* 386 (which gcc doesn't know well enough) to efficiently perform integer */ |
| /* scaling without having to worry about overflows. */ |
| |
| /* ##### muldiv64() borrowed from svgalib 1.03 ##### */ |
| static __inline__ int muldiv64( int m1, int m2, int d ) |
| { |
| /* int32 * int32 -> int64 / int32 -> int32 */ |
| #ifdef i386 |
| int result; |
| __asm__( |
| "imull %%edx\n\t" |
| "idivl %3\n\t" |
| : "=&a" (result) /* out */ |
| : "0" (m1), "d" (m2), "g" (d) /* in */ |
| : "%edx" /* mod */ |
| ); |
| return result; |
| #else |
| return m1 * m2 / d; |
| #endif |
| } |
| |
| /*********************************************************************** |
| * color stretch -- deletes unused pixels |
| * |
| */ |
| static void color_stretch(XImage *sxi, XImage *dxi, |
| short widthSrc, short heightSrc, short widthDest, short heightDest) |
| { |
| register int x, y, sx, sy, xfactor, yfactor; |
| |
| xfactor = muldiv64(widthSrc, 65536, widthDest); |
| yfactor = muldiv64(heightSrc, 65536, heightDest); |
| |
| sy = 0; |
| |
| for (y = 0; y < heightDest;) |
| { |
| int sourcey = sy >> 16; |
| sx = 0; |
| for (x = 0; x < widthDest; x++) { |
| XPutPixel(dxi, x, y, XGetPixel(sxi, sx >> 16, sourcey)); |
| sx += xfactor; |
| } |
| y++; |
| while (y < heightDest) { |
| int py; |
| |
| sourcey = sy >> 16; |
| sy += yfactor; |
| |
| if ((sy >> 16) != sourcey) |
| break; |
| |
| /* vertical stretch => copy previous line */ |
| |
| py = y - 1; |
| |
| for (x = 0; x < widthDest; x++) |
| XPutPixel(dxi, x, y, XGetPixel(dxi, x, py)); |
| y++; |
| } |
| } |
| } |
| |
| /*********************************************************************** |
| * StretchBlt (GDI.35) |
| * |
| * o StretchBlt is CPU intensive so we only call it if we have |
| * to. Checks are made to see if we can call BitBlt instead. |
| * |
| * o the stretching is slowish, some integer interpolation would |
| * speed it up. |
| * |
| * o only black on white and color copy have been tested |
| */ |
| BOOL StretchBlt( HDC hdcDest, short xDest, short yDest, short widthDest, short heightDest, |
| HDC hdcSrc, short xSrc, short ySrc, short widthSrc, short heightSrc, DWORD rop ) |
| { |
| int xs1, xs2, ys1, ys2; |
| int xd1, xd2, yd1, yd2; |
| DC *dcDest, *dcSrc; |
| XImage *sxi, *dxi; |
| DWORD saverop = rop; |
| WORD stretchmode; |
| |
| dprintf_gdi(stddeb, "StretchBlt: %d %d,%d %dx%d %d %d,%d %dx%d %06lx\n", |
| hdcDest, xDest, yDest, widthDest, heightDest, hdcSrc, xSrc, |
| ySrc, widthSrc, heightSrc, rop ); |
| dprintf_gdi(stddeb, "StretchMode is %x\n", |
| ((DC *)GDI_GetObjPtr(hdcDest, DC_MAGIC))->w.stretchBltMode); |
| |
| if (widthDest == 0 || heightDest == 0) return FALSE; |
| if (widthSrc == 0 || heightSrc == 0) return FALSE; |
| if ((rop & 0xcc0000) == ((rop & 0x330000) << 2)) |
| return PatBlt( hdcDest, xDest, yDest, widthDest, heightDest, rop ); |
| |
| /* don't stretch the bitmap unless we have to; if we don't, |
| * call BitBlt for a performance boost |
| */ |
| |
| if (widthSrc == widthDest && heightSrc == heightDest) { |
| return BitBlt(hdcDest, xDest, yDest, widthSrc, heightSrc, |
| hdcSrc, xSrc, ySrc, rop); |
| } |
| |
| rop >>= 16; |
| if ((rop & 0x0f) != (rop >> 4)) |
| { |
| fprintf(stdnimp, "StretchBlt: Unimplemented ROP %02lx\n", rop ); |
| return FALSE; |
| } |
| |
| dcSrc = (DC *) GDI_GetObjPtr( hdcSrc, DC_MAGIC ); |
| if (!dcSrc) return FALSE; |
| dcDest = (DC *) GDI_GetObjPtr( hdcDest, DC_MAGIC ); |
| if (!dcDest) |
| { |
| dcDest = (DC *)GDI_GetObjPtr(hdcDest, METAFILE_DC_MAGIC); |
| if (!dcDest) return FALSE; |
| MF_StretchBlt(dcDest, xDest, yDest, widthDest, heightDest, |
| hdcSrc, xSrc, ySrc, widthSrc, heightSrc, saverop); |
| return TRUE; |
| } |
| |
| xs1 = dcSrc->w.DCOrgX + XLPTODP( dcSrc, xSrc ); |
| xs2 = dcSrc->w.DCOrgX + XLPTODP( dcSrc, xSrc + widthSrc ); |
| ys1 = dcSrc->w.DCOrgY + YLPTODP( dcSrc, ySrc ); |
| ys2 = dcSrc->w.DCOrgY + YLPTODP( dcSrc, ySrc + heightSrc ); |
| xd1 = dcDest->w.DCOrgX + XLPTODP( dcDest, xDest ); |
| xd2 = dcDest->w.DCOrgX + XLPTODP( dcDest, xDest + widthDest ); |
| yd1 = dcDest->w.DCOrgY + YLPTODP( dcDest, yDest ); |
| yd2 = dcDest->w.DCOrgY + YLPTODP( dcDest, yDest + heightDest ); |
| |
| |
| /* get a source and destination image so we can manipulate |
| * the pixels |
| */ |
| |
| sxi = BITBLT_GetImage( hdcSrc, xs1, ys1, widthSrc, heightSrc ); |
| dxi = XCreateImage(display, DefaultVisualOfScreen(screen), |
| screenDepth, ZPixmap, |
| 0, NULL, widthDest, heightDest, |
| 32, 0); |
| dxi->data = malloc(dxi->bytes_per_line * heightDest); |
| |
| stretchmode = ((DC *)GDI_GetObjPtr(hdcDest, DC_MAGIC))->w.stretchBltMode; |
| |
| /* the actual stretching is done here, we'll try to use |
| * some interolation to get some speed out of it in |
| * the future |
| */ |
| |
| switch (stretchmode) { |
| case BLACKONWHITE: |
| color_stretch(sxi, dxi, widthSrc, heightSrc, |
| widthDest, heightDest); |
| /* bonw_stretch(sxi, dxi, widthSrc, heightSrc, |
| widthDest, heightDest); |
| */ break; |
| case WHITEONBLACK: |
| color_stretch(sxi, dxi, widthSrc, heightSrc, |
| widthDest, heightDest); |
| /* wonb_stretch(sxi, dxi, widthSrc, heightSrc, |
| widthDest, heightDest); |
| */ break; |
| case COLORONCOLOR: |
| color_stretch(sxi, dxi, widthSrc, heightSrc, |
| widthDest, heightDest); |
| break; |
| default: |
| fprintf(stderr, "StretchBlt: unknown stretchmode '%d'\n", |
| stretchmode); |
| break; |
| } |
| |
| DC_SetupGCForText(dcDest); |
| XSetFunction(display, dcDest->u.x.gc, DC_XROPfunction[rop & 0x0f]); |
| XPutImage(display, dcDest->u.x.drawable, dcDest->u.x.gc, |
| dxi, 0, 0, min(xd1,xd2), min(yd1,yd2), |
| widthDest, heightDest); |
| |
| /* now free the images we created */ |
| |
| XDestroyImage(sxi); |
| XDestroyImage(dxi); |
| |
| return TRUE; |
| } |
| |
