source: trunk/src/user32/icon.cpp@ 577

Last change on this file since 577 was 577, checked in by sandervl, 26 years ago

Icon cleanup
File size: 4.7 KB
Line 
1/* $Id: icon.cpp,v 1.5 1999-08-19 12:53:55 sandervl Exp $ */
2
3/*
4 * Win32 icon conversion functions for OS/2
5 *
6 * Copyright 1998 Sander van Leeuwen
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> //Odin32 OS/2 api wrappers
20#include <stdio.h>
21#include <string.h>
22#include <stdlib.h>
23#include <iostream.h>
24#include <string.h>
25
26#include <win32type.h>
27
28#include <winicon.h>
29#include <misc.h>
30
31//******************************************************************************
32//******************************************************************************
33PBYTE ConvertWin32Icon(PBYTE presbits, DWORD dwResSize, DWORD *OS2ResSize)
34{
35 WINBITMAPINFOHEADER *bmpHdr = (WINBITMAPINFOHEADER *)presbits;
36 BITMAPFILEHEADER *iconhdr;
37 BITMAPFILEHEADER *iconhdr2;
38 RGBQUAD *rgb;
39 RGB *os2rgb;
40 int bwsize, i, colorsize, rgbsize, iconsize;
41
42 bwsize = (bmpHdr->biWidth*(bmpHdr->biHeight/2))/8;
43 colorsize = bmpHdr->biWidth*(bmpHdr->biHeight/2);
44 if(bmpHdr->biBitCount < 24)
45 rgbsize = (1<<bmpHdr->biBitCount)*sizeof(RGB);
46 else rgbsize = 0;
47
48 switch(bmpHdr->biBitCount) {
49 case 1:
50 colorsize /= 8;
51 break;
52 case 4:
53 colorsize /= 2;
54 break;
55 case 8:
56 break;
57 case 16:
58 colorsize *= 2;
59 break;
60 case 24:
61 colorsize *= 3;
62 break;
63 case 32:
64 colorsize *= 4;
65 break;
66 }
67 if(bmpHdr->biSizeImage == 0 && bmpHdr->biCompression == 0) {
68 bmpHdr->biSizeImage = bwsize + colorsize;
69 }
70#if 0
71 cout << "Icon size : " << bmpHdr->biSizeImage << endl;
72 cout << "Icon Width : " << bmpHdr->biWidth << endl;
73//height for both the XOR and AND bitmap (color & BW)
74 cout << "Height : " << bmpHdr->biHeight << endl;
75 cout << "Icon Bitcount: " << bmpHdr->biBitCount << endl;
76 cout << "Icon Compress: " << bmpHdr->biCompression << endl;
77#endif
78
79 //bitmapfileheader for AndXor mask + 2 RGB structs + bitmapfileheader
80 //for color bitmap + RGB structs for all the colors
81 //SvL, 15-3-98: 2*bwsize
82 iconsize = 2*sizeof(BITMAPFILEHEADER) + 2*sizeof(RGB) +
83 rgbsize + 2*bwsize + bmpHdr->biSizeImage;
84 //There are icons without an XOR mask, so check for it
85 if(bmpHdr->biSizeImage == colorsize) {
86 iconsize += bwsize;
87 }
88 iconhdr = (BITMAPFILEHEADER *)malloc(iconsize);
89 iconhdr->usType = BFT_COLORICON;
90 iconhdr->cbSize = sizeof(BITMAPFILEHEADER);
91 iconhdr->xHotspot = 0;
92 iconhdr->yHotspot = 0;
93 iconhdr->offBits = 2*sizeof(BITMAPFILEHEADER) +
94 2*sizeof(RGB) + rgbsize;
95 iconhdr->bmp.cbFix = sizeof(BITMAPINFOHEADER);
96 iconhdr->bmp.cx = (USHORT)bmpHdr->biWidth;
97 iconhdr->bmp.cy = (USHORT)bmpHdr->biHeight;
98 iconhdr->bmp.cPlanes = 1;
99 iconhdr->bmp.cBitCount = 1;
100 os2rgb = (RGB *)(iconhdr+1);
101 memset(os2rgb, 0, sizeof(RGB));
102 memset(os2rgb+1, 0xff, sizeof(RGB));
103 iconhdr2 = (BITMAPFILEHEADER *)(os2rgb+2);
104 iconhdr2->usType = BFT_COLORICON;
105 iconhdr2->cbSize = sizeof(BITMAPFILEHEADER);
106 iconhdr2->xHotspot = 0;
107 iconhdr2->yHotspot = 0;
108 iconhdr2->offBits = 2*sizeof(BITMAPFILEHEADER) +
109 2*sizeof(RGB) + rgbsize + 2*bwsize;
110 iconhdr2->bmp.cbFix = sizeof(BITMAPINFOHEADER);
111 iconhdr2->bmp.cx = (USHORT)bmpHdr->biWidth;
112 iconhdr2->bmp.cy = (USHORT)(bmpHdr->biHeight/2);
113 iconhdr2->bmp.cPlanes = bmpHdr->biPlanes;
114 iconhdr2->bmp.cBitCount= bmpHdr->biBitCount;
115 os2rgb = (RGB *)(iconhdr2+1);
116 rgb = (RGBQUAD *)(bmpHdr+1);
117 if(bmpHdr->biBitCount < 24) {
118 for(i=0;i<(1<<bmpHdr->biBitCount);i++) {
119 os2rgb->bRed = rgb->red;
120 os2rgb->bBlue = rgb->blue;
121 os2rgb->bGreen = rgb->green;
122 os2rgb++;
123 rgb++;
124 }
125 }
126 //write 2*mono pixels + color pixels
127 //There are icons without an XOR mask, so check for it
128 if(bmpHdr->biSizeImage == colorsize) {
129 memset((char *)os2rgb, 0, bwsize);
130 memset((char *)os2rgb+bwsize, 0, bwsize);
131 memcpy((char *)os2rgb+2*bwsize, (char *)rgb, colorsize);
132 }
133 else {
134 memcpy((char *)os2rgb, (char *)rgb+colorsize, bwsize);
135 memcpy((char *)os2rgb+bwsize, (char *)rgb+colorsize, bwsize);
136 memcpy((char *)os2rgb+2*bwsize, (char *)rgb, colorsize);
137 }
138 *OS2ResSize = iconsize;
139 return((PBYTE)iconhdr);
140}
141//******************************************************************************
142//******************************************************************************
143void FreeIcon(void *os2icon)
144{
145 free(os2icon);
146}
147//******************************************************************************
148//******************************************************************************
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