source: trunk/src/kernel32/cvtcursor.cpp@ 1323

Last change on this file since 1323 was 1043, checked in by sandervl, 26 years ago

Cursor conversion fix
File size: 4.6 KB
Line 
1/* $Id: cvtcursor.cpp,v 1.6 1999-09-25 14:31:00 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 memset(cursorhdr, 0, cursorsize);
59 cursorhdr->usType = BFT_POINTER;
60 cursorhdr->cbSize = sizeof(BITMAPFILEHEADER2);
61 cursorhdr->xHotspot = curHdr->xHotspot;
62
63 /* @@@PH y-hotspot is upside down ! */
64 cursorhdr->yHotspot = (bhdr->biHeight >> 1) /* height div 2 */
65 - curHdr->yHotspot; /* subtract hot.y */
66
67 dprintf(("Cursor Hot.x : %d", curHdr->xHotspot));
68 dprintf(("Cursor Hot.y : %d", curHdr->yHotspot));
69
70 cursorhdr->offBits = sizeof(BITMAPFILEHEADER2) + 2*sizeof(RGB2) + offsetBits;
71 cursorhdr->bmp2.cbFix = sizeof(BITMAPINFOHEADER2);
72 cursorhdr->bmp2.cx = (USHORT)bhdr->biWidth;
73 cursorhdr->bmp2.cy = (USHORT)(bhdr->biHeight);
74 cursorhdr->bmp2.cPlanes = bhdr->biPlanes;
75 cursorhdr->bmp2.cBitCount = bhdr->biBitCount;
76 cursorhdr->bmp2.ulCompression = BCA_UNCOMP;
77 cursorhdr->bmp2.ulColorEncoding = BCE_RGB;
78 dprintf(("Cursor size : %d", bhdr->biSizeImage));
79 dprintf(("Cursor Width : %d", bhdr->biWidth));
80 //height for both the XOR and AND bitmap (color & BW)
81 dprintf(("Height : %d", bhdr->biHeight));
82 dprintf(("Cursor Bitcount: %d", bhdr->biBitCount));
83 dprintf(("Cursor Compress: %d", bhdr->biCompression));
84
85 os2rgb = (RGB2 *)(cursorhdr+1);
86 rgb = (RGBQUAD *)(bhdr+1);
87 for(i=0;i<(1<<bhdr->biBitCount);i++) {
88 os2rgb->bRed = rgb->red;
89 os2rgb->bBlue = rgb->blue;
90 os2rgb->bGreen = rgb->green;
91 os2rgb++;
92 rgb++;
93 }
94
95 if(bhdr->biSizeImage > bmpsize || bhdr->biSizeImage == 0) {
96 bwsize = bhdr->biWidth*(bhdr->biHeight);
97
98 switch(bhdr->biBitCount) {
99 case 1:
100 bwsize /= 8;
101 break;
102 case 4:
103 bwsize /= 2;
104 break;
105 case 8:
106 break;
107 case 16:
108 bwsize *= 2;
109 break;
110 case 24:
111 bwsize *= 3;
112 break;
113 case 32:
114 bwsize *= 4;
115 break;
116 }
117 }
118 else bwsize = bhdr->biSizeImage;
119
120 //write XOR and AND mask
121 memcpy((char *)os2rgb, (char *)rgb, bwsize);
122
123 *os2size = cursorsize;
124 return cursorhdr;
125}
126//******************************************************************************
127//******************************************************************************
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