source: trunk/src/kernel32/cvtcursor.cpp@ 816

Last change on this file since 816 was 816, checked in by sandervl, 26 years ago

icongroup & cursorgroup fixes
File size: 4.4 KB
Line 
1/* $Id: cvtcursor.cpp,v 1.3 1999-09-04 12:41:45 sandervl Exp $ */
2
3/*
4 * PE2LX cursor conversion code
5 *
6 * Copyright 1998 Sander van Leeuwen (sandervl@xs4all.nl)
7 *
8 *
9 * Project Odin Software License can be found in LICENSE.TXT
10 *
11 */
12#define INCL_GPIBITMAPS
13#define INCL_BITMAPFILEFORMAT
14#define INCL_DOSFILEMGR /* File Manager values */
15#define INCL_DOSERRORS /* DOS Error values */
16#define INCL_DOSPROCESS /* DOS Process values */
17#define INCL_DOSMISC /* DOS Miscellanous values */
18#define INCL_WIN
19#include <os2wrap.h>
20#include <stdio.h>
21#include <string.h>
22#include <stdlib.h>
23#include <string.h>
24#include <win32type.h>
25#include <winicon.h>
26#include <wincursor.h>
27#include <misc.h>
28
29//******************************************************************************
30//******************************************************************************
31ULONG QueryConvertedCursorSize(CursorComponent *curHdr, int size)
32{
33 WINBITMAPINFOHEADER *bhdr = (WINBITMAPINFOHEADER *)(curHdr+1);
34 int bmpsize, cursorsize;
35
36 bmpsize = size - sizeof(CursorComponent) - (1<<bhdr->biBitCount)*sizeof(RGBQUAD);
37 cursorsize = sizeof(BITMAPFILEHEADER2) + bmpsize + (1<<bhdr->biBitCount)*sizeof(RGB2);
38
39 return cursorsize;
40}
41//******************************************************************************
42//NOTE: offsetBits is the value added to the offBits bitmap structure members
43// (handy for converting cursor groups)
44//******************************************************************************
45void *ConvertCursor(CursorComponent *curHdr, int size, int *os2size, int offsetBits)
46{
47 RGBQUAD *rgb;
48 RGB2 *os2rgb;
49 WINBITMAPINFOHEADER *bhdr = (WINBITMAPINFOHEADER *)(curHdr+1);
50 BITMAPFILEHEADER2 *cursorhdr;
51 int i, bwsize, bmpsize, cursorsize;
52
53 dprintf(("ConvertCursor: Cursor size %d", size));
54 bmpsize = size - sizeof(CursorComponent) - (1<<bhdr->biBitCount)*sizeof(RGBQUAD);
55 cursorsize = sizeof(BITMAPFILEHEADER2) + bmpsize + (1<<bhdr->biBitCount)*sizeof(RGB2);
56
57 cursorhdr = (BITMAPFILEHEADER2 *)malloc(cursorsize);
58 cursorhdr->usType = BFT_POINTER;
59 cursorhdr->cbSize = sizeof(BITMAPFILEHEADER2);
60 cursorhdr->xHotspot = curHdr->xHotspot;
61
62 /* @@@PH y-hotspot is upside down ! */
63 cursorhdr->yHotspot = (bhdr->biHeight >> 1) - 1 /* height div 2 */
64 - curHdr->yHotspot; /* subtract hot.y */
65
66 dprintf(("Cursor Hot.x : %d", curHdr->xHotspot));
67 dprintf(("Cursor Hot.y : %d", curHdr->yHotspot));
68
69 cursorhdr->offBits = sizeof(BITMAPFILEHEADER2) + 2*sizeof(RGB2) + offsetBits;
70 cursorhdr->bmp2.cbFix = sizeof(BITMAPINFOHEADER);
71 cursorhdr->bmp2.cx = (USHORT)bhdr->biWidth;
72 cursorhdr->bmp2.cy = (USHORT)(bhdr->biHeight);
73 cursorhdr->bmp2.cPlanes = bhdr->biPlanes;
74 cursorhdr->bmp2.cBitCount = bhdr->biBitCount;
75 dprintf(("Cursor size : %d", bhdr->biSizeImage));
76 dprintf(("Cursor Width : %d", bhdr->biWidth));
77 //height for both the XOR and AND bitmap (color & BW)
78 dprintf(("Height : %d", bhdr->biHeight));
79 dprintf(("Cursor Bitcount: %d", bhdr->biBitCount));
80 dprintf(("Cursor Compress: %d", bhdr->biCompression));
81
82 os2rgb = (RGB2 *)(cursorhdr+1);
83 rgb = (RGBQUAD *)(bhdr+1);
84 for(i=0;i<(1<<bhdr->biBitCount);i++) {
85 os2rgb->bRed = rgb->red;
86 os2rgb->bBlue = rgb->blue;
87 os2rgb->bGreen = rgb->green;
88 os2rgb++;
89 rgb++;
90 }
91
92 if(bhdr->biSizeImage > bmpsize || bhdr->biSizeImage == 0) {
93 bwsize = bhdr->biWidth*(bhdr->biHeight);
94
95 switch(bhdr->biBitCount) {
96 case 1:
97 bwsize /= 8;
98 break;
99 case 4:
100 bwsize /= 2;
101 break;
102 case 8:
103 break;
104 case 16:
105 bwsize *= 2;
106 break;
107 case 24:
108 bwsize *= 3;
109 break;
110 case 32:
111 bwsize *= 4;
112 break;
113 }
114 }
115 else bwsize = bhdr->biSizeImage;
116
117 //write XOR and AND mask
118 memcpy((char *)os2rgb, (char *)rgb, bwsize);
119
120 *os2size = cursorsize;
121 return cursorhdr;
122}
123//******************************************************************************
124//******************************************************************************
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