src/system/windows.cpp

   1
   2 /*
   3  * Riven-Wahrk - a reimplementation of the game Riven, by Cyan
   4  * Copyright (C) 2010 Tyler Genter <tylergenter@gmail.com>
   5  *
   6  * This program is free software: you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation, either version 3 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program 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
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18  */
  19
  20
  21 #include "system.h"
  22
  23
  24 mmap_file_t *riven::mmap_file (const std::string &path) {
  25
  26         mmap_file_t *f = new mmap_file_t;
  27
  28         OFSTRUCT ofstruct;
  29         ofstruct.cBytes = sizeof (OFSTRUCT);
  30         HANDLE hFile = (void*) OpenFile (path.c_str(), &ofstruct, OF_READ);
  31
  32         HANDLE hfileMapping = CreateFileMapping (hFile, NULL, PAGE_READONLY, 0, 0, NULL);
  33
  34         // this is likely to fail, especially on a 32-bit os, since we usually
  35         // end up mapping a file that is 600 mb, and the address space is
  36         // relatively small
  37         f->data = (uint8_t*) MapViewOfFile (hfileMapping, FILE_MAP_READ, 0, 0, 0);
  38         if (!result) {
  39                 std::string temp = "Error mapping " + path + " into address space.";
  40
  41                 MessageBox (NULL, temp.c_str(), "Riven-Wahrk", MB_ICONERROR);
  42         }
  43
  44         return f; // return NULL on error
  45
  46 }
  47
  48 void riven::munmap_file (mmap_file_t *) {
  49
  50         // CloseHandle
  51         // UnmapViewOfFile
  52
  53 }
  54
  55
  56 void riven::list_disks (std::vector<std::string> &disks) {
  57
  58         disks.clear ();
  59
  60         char drive[512];
  61         SetErrorMode (SEM_FAILCRITICALERRORS);
  62         GetLogicalDriveStrings (512, drive);
  63         char *path = drive;
  64         while (path[0] != 0) {
  65                 if (GetDriveType (path) == DRIVE_CDROM) {
  66                         disks.push_back (std::string (path));
  67                 }
  68                 path += strlen (path) + 1;
  69         }
  70
  71 }
  72
  73
  74 std::string riven::find_file (const std::string &dir, const std::string &path) {
  75
  76
  77         std::string res = dir + "\\" + path;
  78
  79         FILE *file = fopen (res.c_str(), "r");
  80         if (!file)
  81                 return "";
  82
  83         fclose (file)
  84         return res;
  85 }
  86