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 */
32 #ifdef HAVE_XWIN_CONFIG_H
33 #include <xwin-config.h>
34 #endif
35 #include "win.h"
38 /* See Porting Layer Definition - p. 55 */
39 void
40 winSetSpansNativeGDI (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;
57 nbox = RegionNumRects (pGC->pCompositeClip);
58 pbox = RegionRects (pGC->pCompositeClip);
60 if (!nbox) return;
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 }
73 /* Branch on the drawable type */
74 switch (pDrawable->type)
75 {
76 case DRAWABLE_PIXMAP:
78 SelectClipRgn (pGCPriv->hdcMem, combined);
79 DeleteObject (combined);
80 combined = NULL;
82 pPixmap = (PixmapPtr) pDrawable;
83 pPixmapPriv = winGetPixmapPriv (pPixmap);
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");
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;
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 }
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]);
119 pSrcs += PixmapBytePad (*piWidths, pDrawable->depth);
120 pPoints++;
121 piWidths++;
122 }
124 /* Reset the clip region */
125 SelectClipRgn (pGCPriv->hdcMem, NULL);
127 /* Push the drawable pixmap out of the GC HDC */
128 SelectObject (pGCPriv->hdcMem, hbmpOrig);
129 break;
131 case DRAWABLE_WINDOW:
133 SelectClipRgn (pGCPriv->hdc, combined);
134 DeleteObject (combined);
135 combined = NULL;
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;
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 }
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]);
165 pSrcs += PixmapBytePad (*piWidths, pDrawable->depth);
166 pPoints++;
167 piWidths++;
168 }
170 /* Reset the clip region */
171 SelectClipRgn (pGCPriv->hdc, NULL);
172 break;
174 default:
175 FatalError ("\nwinSetSpansNativeGDI - Unknown drawable type\n\n");
176 break;
177 }
178 }