348 lines
9.7 KiB
C
348 lines
9.7 KiB
C
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/*++
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Copyright (c) 1992 Microsoft Corporation
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Module Name:
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group16.c
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Abstract:
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This module contains routines for reading 16-bit Windows 3.1
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group files.
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Author:
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Steve Wood (stevewo) 22-Feb-1993
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Revision History:
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--*/
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#include "advapi.h"
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#include <stdio.h>
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#include <winbasep.h>
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#include "win31io.h"
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#define ROUND_UP( X, A ) (((ULONG_PTR)(X) + (A) - 1) & ~((A) - 1))
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#define PAGE_SIZE 4096
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#define PAGE_NUMBER( A ) ((DWORD)(A) / PAGE_SIZE)
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PGROUP_DEF16
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LoadGroup16(
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PWSTR GroupFileName
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)
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{
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HANDLE File, Mapping;
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LPVOID Base;
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File = CreateFileW( GroupFileName,
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GENERIC_READ,
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FILE_SHARE_READ,
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NULL,
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OPEN_EXISTING,
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0,
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NULL
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);
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if (File == INVALID_HANDLE_VALUE) {
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return NULL;
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}
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Mapping = CreateFileMapping( File,
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NULL,
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PAGE_WRITECOPY,
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0,
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0,
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NULL
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);
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CloseHandle( File );
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if (Mapping == NULL) {
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return NULL;
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}
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Base = MapViewOfFile( Mapping,
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FILE_MAP_COPY,
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0,
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0,
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0
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);
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CloseHandle( Mapping );
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return (PGROUP_DEF16)Base;
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}
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BOOL
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UnloadGroup16(
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PGROUP_DEF16 Group
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)
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{
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return UnmapViewOfFile( (LPVOID)Group );
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}
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BOOL
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ExtendGroup16(
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PGROUP_DEF16 Group,
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BOOL AppendToGroup,
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DWORD cb
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)
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{
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PBYTE Start, Commit, End;
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if (((DWORD)Group->wReserved + cb) > 0xFFFF) {
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return FALSE;
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}
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Start = (PBYTE)Group + Group->cbGroup;
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End = Start + cb;
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if (PAGE_NUMBER( Group->wReserved ) != PAGE_NUMBER( Group->wReserved + cb )) {
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Commit = (PBYTE)ROUND_UP( (PBYTE)Group + Group->wReserved, PAGE_SIZE );
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if (!VirtualAlloc( Commit, ROUND_UP( cb, PAGE_SIZE ), MEM_COMMIT, PAGE_READWRITE )) {
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return FALSE;
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}
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}
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if (!AppendToGroup) {
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memmove( End, Start, Group->wReserved - Group->cbGroup );
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}
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Group->wReserved += (WORD)cb;
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return TRUE;
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}
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WORD
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AddDataToGroup16(
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PGROUP_DEF16 Group,
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PBYTE Data,
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DWORD cb
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)
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{
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WORD Offset;
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if (cb == 0) {
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cb = strlen( Data ) + 1;
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}
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cb = (DWORD)ROUND_UP( cb, sizeof( WORD ) );
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if (!ExtendGroup16( Group, FALSE, cb )) {
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return 0;
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}
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if (((DWORD)Group->cbGroup + cb) > 0xFFFF) {
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return 0;
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}
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Offset = Group->cbGroup;
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Group->cbGroup += (WORD)cb;
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if (Data != NULL) {
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memmove( (PBYTE)Group + Offset, Data, cb );
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}
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else {
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memset( (PBYTE)Group + Offset, 0, cb );
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}
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return Offset;
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}
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BOOL
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AddTagToGroup16(
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PGROUP_DEF16 Group,
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WORD wID,
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WORD wItem,
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WORD cb,
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PBYTE rgb
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)
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{
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WORD Offset;
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PTAG_DEF16 Tag;
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cb = (WORD)(ROUND_UP( cb, sizeof( WORD ) ));
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Offset = Group->wReserved;
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if (!ExtendGroup16( Group, TRUE, FIELD_OFFSET( TAG_DEF16, rgb[ 0 ] ) + cb )) {
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return FALSE;
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}
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Tag = (PTAG_DEF16)PTR( Group, Offset );
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Tag->wID = wID;
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Tag->wItem = (int)wItem;
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if (cb) {
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Tag->cb = (WORD)(cb + FIELD_OFFSET( TAG_DEF16, rgb[ 0 ] ));
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memmove( &Tag->rgb[ 0 ], rgb, cb );
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}
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else {
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Tag->cb = (WORD)(FIELD_OFFSET( TAG_DEF16, rgb[ 0 ] ));
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}
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return TRUE;
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}
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#if DBG
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BOOL
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DumpGroup16(
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PWSTR GroupFileName,
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PGROUP_DEF16 Group
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)
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{
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PICON_HEADER16 Icon;
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PITEM_DEF16 Item;
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PTAG_DEF16 Tag;
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UINT i;
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PULONG p;
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int cb;
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DbgPrint( "%ws - Group at %08x\n", GroupFileName, Group );
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DbgPrint( " dwMagic: %08x\n", Group->dwMagic );
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DbgPrint( " wCheckSum: %04x\n", Group->wCheckSum );
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DbgPrint( " cbGroup: %04x\n", Group->cbGroup );
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DbgPrint( " nCmdShow: %04x\n", Group->nCmdShow );
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DbgPrint( " rcNormal: [%04x,%04x,%04x,%04x]\n",
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Group->rcNormal.Left,
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Group->rcNormal.Top,
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Group->rcNormal.Right,
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Group->rcNormal.Bottom
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);
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DbgPrint( " ptMin: [%04x,%04x]\n",
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Group->ptMin.x,
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Group->ptMin.y
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);
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DbgPrint( " pName: [%04x] %s\n",
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Group->pName,
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(PSZ)PTR( Group, Group->pName )
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);
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DbgPrint( " cxIcon: %04x\n", Group->cxIcon );
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DbgPrint( " cyIcon: %04x\n", Group->cyIcon );
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DbgPrint( " wIconFormat: %04x\n", Group->wIconFormat );
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DbgPrint( " cItems: %04x\n", Group->cItems );
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for (i=0; i<Group->cItems; i++) {
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DbgPrint( " Item[ %02x ] at %04x\n", i, Group->rgiItems[ i ] );
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if (Group->rgiItems[ i ] != 0) {
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Item = ITEM16( Group, i );
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DbgPrint( " pt: [%04x, %04x]\n",
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Item->pt.x,
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Item->pt.y
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);
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DbgPrint( " iIcon: %04x\n", Item->iIcon );
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DbgPrint( " cbHeader: %04x\n", Item->cbHeader );
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DbgPrint( " cbANDPln: %04x\n", Item->cbANDPlane );
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DbgPrint( " cbXORPln: %04x\n", Item->cbXORPlane );
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DbgPrint( " pHeader: %04x\n", Item->pHeader );
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Icon = (PICON_HEADER16)PTR( Group, Item->pHeader );
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DbgPrint( " xHot: %04x\n", Icon->xHotSpot );
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DbgPrint( " yHot: %04x\n", Icon->yHotSpot );
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DbgPrint( " cx: %04x\n", Icon->cx );
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DbgPrint( " cy: %04x\n", Icon->cy );
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DbgPrint( " cbWid:%04x\n", Icon->cbWidth );
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DbgPrint( " Plane:%04x\n", Icon->Planes );
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DbgPrint( " BPP: %04x\n", Icon->BitsPixel );
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DbgPrint( " pANDPln: %04x\n", Item->pANDPlane );
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DbgPrint( " pXORPln: %04x\n", Item->pXORPlane );
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DbgPrint( " pName: [%04x] %s\n", Item->pName, PTR( Group, Item->pName ) );
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DbgPrint( " pCommand:[%04x] %s\n", Item->pCommand, PTR( Group, Item->pCommand ) );
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DbgPrint( " pIconPth:[%04x] %s\n", Item->pIconPath, PTR( Group, Item->pIconPath ) );
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DbgPrint( " AND bits:\n" );
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p = (PULONG)PTR( Group, Item->pANDPlane );
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cb = Item->cbANDPlane;
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while (cb > 0) {
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DbgPrint( " %08x", *p++ );
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cb -= sizeof( *p );
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if (cb >= sizeof( *p )) {
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cb -= sizeof( *p );
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DbgPrint( " %08x", *p++ );
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if (cb >= sizeof( *p )) {
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cb -= sizeof( *p );
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DbgPrint( " %08x", *p++ );
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if (cb >= sizeof( *p )) {
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cb -= sizeof( *p );
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DbgPrint( " %08x", *p++ );
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}
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}
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}
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DbgPrint( "\n" );
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}
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DbgPrint( " XOR bits:\n" );
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p = (PULONG)PTR( Group, Item->pXORPlane );
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cb = Item->cbXORPlane;
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while (cb > 0) {
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DbgPrint( " %08x", *p++ );
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cb -= sizeof( *p );
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if (cb >= sizeof( *p )) {
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cb -= sizeof( *p );
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DbgPrint( " %08x", *p++ );
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if (cb >= sizeof( *p )) {
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cb -= sizeof( *p );
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DbgPrint( " %08x", *p++ );
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if (cb >= sizeof( *p )) {
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cb -= sizeof( *p );
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DbgPrint( " %08x", *p++ );
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}
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}
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}
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DbgPrint( "\n" );
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}
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}
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}
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Tag = (PTAG_DEF16)((PBYTE)Group + Group->cbGroup);
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if (Tag->wID == ID_MAGIC && Tag->wItem == ID_LASTTAG &&
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*(UNALIGNED DWORD *)&Tag->rgb == PMTAG_MAGIC
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) {
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while (Tag->wID != ID_LASTTAG) {
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DbgPrint( " Tag at %04x\n", (PBYTE)Tag - (PBYTE)Group );
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DbgPrint( " wID: %04x\n", Tag->wID );
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DbgPrint( " wItem: %04x\n", Tag->wItem );
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DbgPrint( " cb: %04x\n", Tag->cb );
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switch( Tag->wID ) {
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case ID_MAGIC:
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DbgPrint( " rgb: ID_MAGIC( %.4s )\n", Tag->rgb );
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break;
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case ID_WRITERVERSION:
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DbgPrint( " rgb: ID_WRITERVERSION( %s )\n", Tag->rgb );
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break;
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case ID_APPLICATIONDIR:
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DbgPrint( " rgb: ID_APPLICATIONDIR( %s )\n", Tag->rgb );
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break;
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case ID_HOTKEY:
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DbgPrint( " rgb: ID_HOTKEY( %04x )\n", *(LPWORD)Tag->rgb );
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break;
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case ID_MINIMIZE:
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DbgPrint( " rgb: ID_MINIMIZE()\n" );
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break;
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case ID_LASTTAG:
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DbgPrint( " rgb: ID_LASTTAG()\n" );
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break;
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default:
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DbgPrint( " rgb: unknown data format for this ID\n" );
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break;
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}
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Tag = (PTAG_DEF16)((PBYTE)Tag + Tag->cb);
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}
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}
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return TRUE;
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}
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#endif // DBG
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