1 /*
2 * DISPDIB.dll
3 *
4 * Copyright 1998 Ove Kåven (with some help from Marcus Meissner)
5 *
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
15 *
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
19 */
20
21 #include <stdarg.h>
22 #include <string.h>
23 #include "windef.h"
24 #include "winbase.h"
25 #include "wingdi.h"
26 #include "wine/wingdi16.h"
27 #include "dispdib.h"
28 #include "wine/debug.h"
29
30 WINE_DEFAULT_DEBUG_CHANNEL(ddraw);
31
32 #if 0
33
34 static int dispdib_multi = 0;
35
36 static WORD DISPDIB_Begin(WORD wFlags)
37 {
38 unsigned Xres,Yres,Depth;
39
40 switch(wFlags&DISPLAYDIB_MODE) {
41 case DISPLAYDIB_MODE_DEFAULT:
42 /* FIXME: is this supposed to autodetect? */
43 case DISPLAYDIB_MODE_320x200x8:
44 Xres=320; Yres=200; Depth=8; break;
45 case DISPLAYDIB_MODE_320x240x8:
46 Xres=320; Yres=240; Depth=8; break;
47 default:
48 return DISPLAYDIB_NOTSUPPORTED;
49 }
50 /* more or less dummy calls to Death/Resurrection, for completeness */
51 /* FIXME: what arguments should they get? */
52 Death16(0);
53 if (VGA_SetMode(Xres,Yres,Depth)) {
54 Resurrection16(0,0,0,0,0,0,0);
55 return DISPLAYDIB_NOTSUPPORTED;
56 }
57 return DISPLAYDIB_NOERROR;
58 }
59
60 static void DISPDIB_End(void)
61 {
62 Resurrection16(0,0,0,0,0,0,0); /* FIXME: arguments */
63 VGA_Exit();
64 }
65
66 static void DISPDIB_Palette(LPBITMAPINFO lpbi)
67 {
68 VGA_SetQuadPalette(lpbi->bmiColors,0,256);
69 }
70
71 static void DISPDIB_Show(LPBITMAPINFOHEADER lpbi,LPSTR lpBits,WORD uFlags)
72 {
73 int Xofs,Yofs,Width=lpbi->biWidth,Height=lpbi->biHeight,Delta;
74 int Pitch = (Width + 3) & ~3;
75 unsigned int sPitch,sWidth,sHeight;
76 LPSTR surf = DOSMEM_MapDosToLinear(0xa0000);
77
78 if (VGA_GetMode(&sHeight,&sWidth,NULL)) return;
79 sPitch=320;
80
81 Delta=(Height<0)*2-1;
82 Height*=-Delta; Pitch*=Delta;
83
84 if (uFlags&DISPLAYDIB_NOCENTER) {
85 Xofs=0; Yofs=0;
86 } else {
87 Xofs=(sWidth-Width)/2;
88 Yofs=(sHeight-Height)/2;
89 }
90 surf += (Yofs*sPitch)+Xofs;
91 if (Pitch<0) lpBits-=Pitch*(Height-1);
92 for (; Height; Height--,lpBits+=Pitch,surf+=sPitch) {
93 memcpy(surf,lpBits,Width);
94 }
95
96 VGA_Poll(0);
97 }
98 #endif
99
100
101 /*********************************************************************
102 * DisplayDib (DISPDIB.1)
103 *
104 * Disables GDI and takes over the VGA screen to show DIBs in full screen.
105 *
106 * FLAGS
107 *
108 * DISPLAYDIB_NOPALETTE: don't change palette
109 * DISPLAYDIB_NOCENTER: don't center bitmap
110 * DISPLAYDIB_NOWAIT: don't wait (for keypress) before returning
111 * DISPLAYDIB_BEGIN: start of multiple calls (does not restore the screen)
112 * DISPLAYDIB_END: end of multiple calls (restores the screen)
113 * DISPLAYDIB_MODE_DEFAULT: default display mode
114 * DISPLAYDIB_MODE_320x200x8: Standard VGA 320x200 256 colors
115 * DISPLAYDIB_MODE_320x240x8: Tweaked VGA 320x240 256 colors
116 *
117 * RETURNS
118 *
119 * DISPLAYDIB_NOERROR: success
120 * DISPLAYDIB_NOTSUPPORTED: function not supported
121 * DISPLAYDIB_INVALIDDIB: null or invalid DIB header
122 * DISPLAYDIB_INVALIDFORMAT: invalid DIB format
123 * DISPLAYDIB_INVALIDTASK: not called from current task
124 *
125 * BUGS
126 *
127 * Waiting for keypresses is not implemented.
128 */
129 WORD WINAPI DisplayDib(
130 LPBITMAPINFO lpbi, /* [in] DIB header with resolution and palette */
131 LPSTR lpBits, /* [in] Bitmap bits to show */
132 WORD wFlags /* [in] */
133 )
134 {
135 #if 0
136 WORD ret;
137
138 if (wFlags&DISPLAYDIB_END) {
139 if (dispdib_multi) DISPDIB_End();
140 dispdib_multi = 0;
141 return DISPLAYDIB_NOERROR;
142 }
143 if (!dispdib_multi) {
144 ret=DISPDIB_Begin(wFlags);
145 if (ret) return ret;
146 }
147 if (wFlags&DISPLAYDIB_BEGIN) dispdib_multi = 1;
148 if (!(wFlags&DISPLAYDIB_NOPALETTE)) {
149 DISPDIB_Palette(lpbi);
150 }
151 /* FIXME: not sure if it's valid to draw images in DISPLAYDIB_BEGIN, so... */
152 if (lpBits) {
153 DISPDIB_Show(&(lpbi->bmiHeader),lpBits,wFlags);
154 }
155 if (!(wFlags&DISPLAYDIB_NOWAIT)) {
156 FIXME("wait not implemented\n");
157 }
158 if (!dispdib_multi) DISPDIB_End();
159 #endif
160 FIXME( "broken, should be rewritten using ddraw\n" );
161 return DISPLAYDIB_NOERROR;
162 }
163
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