winsetsp.c revision 706f2543 
1/*
2 *Copyright (C) 1994-2000 The XFree86 Project, Inc. All Rights Reserved.
3 *
4 *Permission is hereby granted, free of charge, to any person obtaining
5 * a copy of this software and associated documentation files (the
6 *"Software"), to deal in the Software without restriction, including
7 *without limitation the rights to use, copy, modify, merge, publish,
8 *distribute, sublicense, and/or sell copies of the Software, and to
9 *permit persons to whom the Software is furnished to do so, subject to
10 *the following conditions:
11 *
12 *The above copyright notice and this permission notice shall be
13 *included in all copies or substantial portions of the Software.
14 *
15 *THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 *EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 *MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 *NONINFRINGEMENT. IN NO EVENT SHALL THE XFREE86 PROJECT BE LIABLE FOR
19 *ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
20 *CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
21 *WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
22 *
23 *Except as contained in this notice, the name of the XFree86 Project
24 *shall not be used in advertising or otherwise to promote the sale, use
25 *or other dealings in this Software without prior written authorization
26 *from the XFree86 Project.
27 *
28 * Authors:	Harold L Hunt II
29 * 		Alan Hourihane <alanh@fairlite.demon.co.uk>
30 */
31
32#ifdef HAVE_XWIN_CONFIG_H
33#include <xwin-config.h>
34#endif
35#include "win.h"
36
37
38/* See Porting Layer Definition - p. 55 */
39void
40winSetSpansNativeGDI (DrawablePtr	pDrawable,
41		      GCPtr		pGC,
42		      char		*pSrcs,
43		      DDXPointPtr	pPoints,
44		      int		*piWidths,
45		      int		iSpans,
46		      int		fSorted)
47{
48  winGCPriv(pGC);
49  PixmapPtr		pPixmap = NULL;
50  winPrivPixmapPtr	pPixmapPriv = NULL;
51  HBITMAP		hbmpOrig = NULL;
52  BITMAPINFO		bmi;
53  HRGN			hrgn = NULL, combined = NULL;
54  int			nbox;
55  BoxPtr	 	pbox;
56
57  nbox = RegionNumRects (pGC->pCompositeClip);
58  pbox = RegionRects (pGC->pCompositeClip);
59
60  if (!nbox) return;
61
62  combined = CreateRectRgn (pbox->x1, pbox->y1, pbox->x2, pbox->y2);
63  nbox--; pbox++;
64  while (nbox--)
65    {
66      hrgn = CreateRectRgn (pbox->x1, pbox->y1, pbox->x2, pbox->y2);
67      CombineRgn (combined, combined, hrgn, RGN_OR);
68      DeleteObject (hrgn);
69      hrgn = NULL;
70      pbox++;
71    }
72
73  /* Branch on the drawable type */
74  switch (pDrawable->type)
75    {
76    case DRAWABLE_PIXMAP:
77
78      SelectClipRgn (pGCPriv->hdcMem, combined);
79      DeleteObject (combined);
80      combined = NULL;
81
82      pPixmap = (PixmapPtr) pDrawable;
83      pPixmapPriv = winGetPixmapPriv (pPixmap);
84
85      /* Select the drawable pixmap into a DC */
86      hbmpOrig = SelectObject (pGCPriv->hdcMem, pPixmapPriv->hBitmap);
87      if (hbmpOrig == NULL)
88	FatalError ("winSetSpans - DRAWABLE_PIXMAP - SelectObject () "
89		    "failed on pPixmapPriv->hBitmap\n");
90
91      while (iSpans--)
92        {
93	  ZeroMemory (&bmi, sizeof (BITMAPINFO));
94	  bmi.bmiHeader.biSize = sizeof (BITMAPINFOHEADER);
95	  bmi.bmiHeader.biWidth = *piWidths;
96	  bmi.bmiHeader.biHeight = 1;
97	  bmi.bmiHeader.biPlanes = 1;
98	  bmi.bmiHeader.biBitCount = pDrawable->depth;
99	  bmi.bmiHeader.biCompression = BI_RGB;
100
101  	  /* Setup color table for mono DIBs */
102  	  if (pDrawable->depth == 1)
103    	    {
104      	      bmi.bmiColors[1].rgbBlue = 255;
105      	      bmi.bmiColors[1].rgbGreen = 255;
106      	      bmi.bmiColors[1].rgbRed = 255;
107    	    }
108
109	  StretchDIBits (pGCPriv->hdcMem,
110			 pPoints->x, pPoints->y,
111			 *piWidths, 1,
112			 0, 0,
113			 *piWidths, 1,
114			 pSrcs,
115			 (BITMAPINFO *) &bmi,
116			 DIB_RGB_COLORS,
117			 g_copyROP[pGC->alu]);
118
119	  pSrcs += PixmapBytePad (*piWidths, pDrawable->depth);
120	  pPoints++;
121	  piWidths++;
122        }
123
124      /* Reset the clip region */
125      SelectClipRgn (pGCPriv->hdcMem, NULL);
126
127      /* Push the drawable pixmap out of the GC HDC */
128      SelectObject (pGCPriv->hdcMem, hbmpOrig);
129      break;
130
131    case DRAWABLE_WINDOW:
132
133      SelectClipRgn (pGCPriv->hdc, combined);
134      DeleteObject (combined);
135      combined = NULL;
136
137      while (iSpans--)
138        {
139	  ZeroMemory (&bmi, sizeof (BITMAPINFO));
140	  bmi.bmiHeader.biSize = sizeof (BITMAPINFOHEADER);
141	  bmi.bmiHeader.biWidth = *piWidths;
142	  bmi.bmiHeader.biHeight = 1;
143	  bmi.bmiHeader.biPlanes = 1;
144	  bmi.bmiHeader.biBitCount = pDrawable->depth;
145	  bmi.bmiHeader.biCompression = BI_RGB;
146
147  	  /* Setup color table for mono DIBs */
148  	  if (pDrawable->depth == 1)
149    	    {
150      	      bmi.bmiColors[1].rgbBlue = 255;
151      	      bmi.bmiColors[1].rgbGreen = 255;
152      	      bmi.bmiColors[1].rgbRed = 255;
153    	    }
154
155	  StretchDIBits (pGCPriv->hdc,
156			 pPoints->x, pPoints->y,
157			 *piWidths, 1,
158			 0, 0,
159			 *piWidths, 1,
160			 pSrcs,
161			 (BITMAPINFO *) &bmi,
162			 DIB_RGB_COLORS,
163			 g_copyROP[pGC->alu]);
164
165	  pSrcs += PixmapBytePad (*piWidths, pDrawable->depth);
166	  pPoints++;
167	  piWidths++;
168        }
169
170      /* Reset the clip region */
171      SelectClipRgn (pGCPriv->hdc, NULL);
172      break;
173
174    default:
175      FatalError ("\nwinSetSpansNativeGDI - Unknown drawable type\n\n");
176      break;
177    }
178}
179