forked from 0ad/0ad
janwas
4285883f3d
file: add timer h_mgr bugfix: h_force_free wasn't clearing refcnt mem: add note on shutdown order snd: bugfixes: VSrc_validate was overzealous (al_src == 0 is allowed); sd->is_valid wasn't being set -> leaked AL buffers. wsdl: remove overzealous ReleaseDC check (false alarm) gamesetup: clarify (resource) shutdown order This was SVN commit r2913.
503 lines
15 KiB
C++
Executable File
503 lines
15 KiB
C++
Executable File
// Windows-specific system detect
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//
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// Copyright (c) 2004 Jan Wassenberg
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//
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// This file is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License as
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// published by the Free Software Foundation; either version 2 of the
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// License, or (at your option) any later version.
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//
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// This file is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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//
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// Contact info:
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// Jan.Wassenberg@stud.uni-karlsruhe.de
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// http://www.stud.uni-karlsruhe.de/~urkt/
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#include "precompiled.h"
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#include "detect.h"
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#include "lib.h"
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#include "lib/res/file/file.h" // file_enum
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#include "win_internal.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <set>
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#include <string>
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// DirectSound header
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// HACK: workaround for "subwtype.h not found" errors on VC6/7 hybrid.
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// (subwtype.h <- d3dtypes.h <- dsound.h)
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// since we're only using one DS function (DirectSoundEnumerate),
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// we forward-declare it rather than fix/mess with the system headers.
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#if 0
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// mmsystem.h is necessary for dsound.h; we cut out unnecessary junk
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# define MMNODRV // Installable driver support
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# define MMNOSOUND // Sound support
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//# define MMNOWAVE // Waveform support
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# define MMNOMIDI // MIDI support
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# define MMNOAUX // Auxiliary audio support
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# define MMNOMIXER // Mixer support
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# define MMNOTIMER // Timer support
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# define MMNOJOY // Joystick support
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# define MMNOMCI // MCI support
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# define MMNOMMIO // Multimedia file I/O support
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# define MMNOMMSYSTEM // General MMSYSTEM functions
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# include <MMSystem.h>
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# define DIRECTSOUND_VERSION 0x0500
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# include <dsound.h>
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#else
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# define DS_OK 0
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typedef BOOL (CALLBACK* LPDSENUMCALLBACKA)(void*, const char*, const char*, void*);
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extern "C" __declspec(dllimport) HRESULT WINAPI DirectSoundEnumerateA(LPDSENUMCALLBACKA, void*);
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#endif
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// these are all delay-loaded - they're not needed if
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// system information is never queried.
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#if MSC_VERSION
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#pragma comment(lib, "version.lib") // DLL version
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#pragma comment(lib, "advapi32.lib") // registry
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#pragma comment(lib, "dsound.lib") // sound card name
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#endif
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// EnumDisplayDevices is not available on Win95 or NT.
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// try to import it manually here; return -1 if not available.
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static BOOL (WINAPI *pEnumDisplayDevicesA)(LPCSTR, DWORD, LPDISPLAY_DEVICEA, DWORD);
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static int import_EnumDisplayDevices()
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{
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if(!pEnumDisplayDevicesA)
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{
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static HMODULE hUser32Dll = LoadLibrary("user32.dll");
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*(void**)&pEnumDisplayDevicesA = GetProcAddress(hUser32Dll, "EnumDisplayDevicesA");
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// do not free the DLL reference! if this happens to be the first
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// use of user32 (possible if it's delay-loaded or otherwise unused),
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// it would actually be unloaded. that apparently breaks the
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// Windows cursor.
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// unfortunately there's no way to get at the reference count,
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// so this resource leak is unavoidable.
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}
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return pEnumDisplayDevicesA? 0 : -1;
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}
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// useful for choosing a video mode.
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// if we fail, outputs are unchanged (assumed initialized to defaults)
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int get_cur_vmode(int* xres, int* yres, int* bpp, int* freq)
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{
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// don't use EnumDisplaySettingsW - BoundsChecker reports it causes
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// a memory overrun (even if called as the very first thing, before
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// static CRT initialization).
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DEVMODEA dm;
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memset(&dm, 0, sizeof(dm));
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dm.dmSize = sizeof(dm);
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// dm.dmDriverExtra already set to 0 by memset
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if(!EnumDisplaySettingsA(0, ENUM_CURRENT_SETTINGS, &dm))
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return -1;
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if(dm.dmFields & (DWORD)DM_PELSWIDTH && xres)
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*xres = (int)dm.dmPelsWidth;
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if(dm.dmFields & (DWORD)DM_PELSHEIGHT && yres)
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*yres = (int)dm.dmPelsHeight;
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if(dm.dmFields & (DWORD)DM_BITSPERPEL && bpp)
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*bpp = (int)dm.dmBitsPerPel;
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if(dm.dmFields & (DWORD)DM_DISPLAYFREQUENCY && freq)
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*freq = (int)dm.dmDisplayFrequency;
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return 0;
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}
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// useful for determining aspect ratio.
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// if we fail, outputs are unchanged (assumed initialized to defaults)
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int get_monitor_size(int& width_mm, int& height_mm)
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{
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// (DC for the primary monitor's entire screen)
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HDC dc = GetDC(0);
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width_mm = GetDeviceCaps(dc, HORZSIZE);
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height_mm = GetDeviceCaps(dc, VERTSIZE);
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ReleaseDC(0, dc);
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return 0;
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}
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//----------------------------------------------------------------------------
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// support routines for getting DLL version
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//----------------------------------------------------------------------------
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static int get_ver(const char* module_path, char* out_ver, size_t out_ver_len)
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{
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WIN_SAVE_LAST_ERROR; // GetFileVersion*, Ver*
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// determine size of and allocate memory for version information.
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DWORD unused;
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const DWORD ver_size = GetFileVersionInfoSize(module_path, &unused);
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if(!ver_size)
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return -1;
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void* buf = malloc(ver_size);
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if(!buf)
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return ERR_NO_MEM;
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int ret = -1; // single point of exit (for free())
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if(GetFileVersionInfo(module_path, 0, ver_size, buf))
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{
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u16* lang; // -> 16 bit language ID, 16 bit codepage
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uint lang_len;
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const BOOL ok = VerQueryValue(buf, "\\VarFileInfo\\Translation", (void**)&lang, &lang_len);
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if(ok && lang && lang_len == 4)
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{
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char subblock[64];
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sprintf(subblock, "\\StringFileInfo\\%04X%04X\\FileVersion", lang[0], lang[1]);
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const char* in_ver;
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uint in_ver_len;
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if(VerQueryValue(buf, subblock, (void**)&in_ver, &in_ver_len))
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{
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strcpy_s(out_ver, out_ver_len, in_ver);
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ret = 0; // success
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}
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}
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}
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free(buf);
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WIN_RESTORE_LAST_ERROR;
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return ret;
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}
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//
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// build a string containing DLL filename(s) and their version info.
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//
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static char* dll_list_buf;
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static size_t dll_list_chars;
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static char* dll_list_pos;
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static void dll_list_init(char* buf, size_t chars)
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{
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dll_list_pos = dll_list_buf = buf;
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dll_list_chars = chars;
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}
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// read DLL file version and append that and its name to the list.
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// return 0 on success or a negative error code.
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//
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// name should preferably be the complete path to DLL, to make sure
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// we don't inadvertently load another one on the library search path.
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// we add the .dll extension if necessary.
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static int dll_list_add(const char* name)
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{
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// make sure we're allowed to be called.
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if(!dll_list_pos)
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{
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debug_warn("dll_list_add: called before dll_list_init or after failure");
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return -1;
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}
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// some driver names are stored in the registry without .dll extension.
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// if necessary, copy to new buffer and add it there.
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// note: do not change extension if present; some drivers have a
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// ".sys" extension, so always appending ".dll" is incorrect.
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char buf[MAX_PATH];
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const char* dll_name = name;
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const char* ext = strrchr(name, '.');
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if(!ext)
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{
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snprintf(buf, ARRAY_SIZE(buf), "%s.dll", name);
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dll_name = buf;
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}
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// read file version.
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char dll_ver[128] = "unknown"; // enclosed in () below
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(void)get_ver(dll_name, dll_ver, sizeof(dll_ver));
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// if this fails, default is already set and we don't want to abort.
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const ssize_t max_chars_to_write = (ssize_t)dll_list_chars - (dll_list_pos-dll_list_buf) - 10;
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// reserves enough room for subsequent comma and "..." strings.
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// not first time: prepend comma to string (room was reserved above).
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if(dll_list_pos != dll_list_buf)
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dll_list_pos += sprintf(dll_list_pos, ", ");
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// extract filename.
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const char* slash = strrchr(dll_name, '\\');
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const char* dll_fn = slash? slash+1 : dll_name;
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int len = snprintf(dll_list_pos, max_chars_to_write, "%s (%s)", dll_fn, dll_ver);
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// success
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if(len > 0)
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{
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dll_list_pos += len;
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return 0;
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}
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// didn't fit; complain
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sprintf(dll_list_pos, "..."); // (room was reserved above)
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dll_list_pos = 0; // poison pill, prevent further calls
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debug_warn("dll_list_add: not enough room");
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return ERR_BUF_SIZE;
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}
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//////////////////////////////////////////////////////////////////////////////
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//
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// graphics card / driver version
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//
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//////////////////////////////////////////////////////////////////////////////
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static int win_get_gfx_card()
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{
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// make sure EnumDisplayDevices is available (as pEnumDisplayDevicesA)
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if(import_EnumDisplayDevices() >= 0)
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{
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// loop through all display adapters and put the primary device's
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// identifier in gfx_card.
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// (we don't bother returning a list of all of them because it's
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// likely to be redundant, e.g. "Radeon" and "Radeon Secondary";
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// we're only interested in the 'main' card anyway)
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DISPLAY_DEVICEA dd = { sizeof(DISPLAY_DEVICEA) };
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for(DWORD dev_num = 0; ; dev_num++)
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{
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if(!pEnumDisplayDevicesA(0, dev_num, &dd, 0))
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break;
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// ignore mirror pseudo-devices (installed e.g. by NetMeeting)
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if(dd.StateFlags & DISPLAY_DEVICE_MIRRORING_DRIVER)
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continue;
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if(dd.StateFlags & DISPLAY_DEVICE_PRIMARY_DEVICE)
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{
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strcpy_s(gfx_card, ARRAY_SIZE(gfx_card), (const char*)dd.DeviceString);
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return 0;
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}
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}
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}
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return -1;
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}
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// note: this implementation doesn't require OpenGL to be initialized.
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static int win_get_gfx_drv_ver()
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{
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if(gfx_drv_ver[0] != '\0')
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return -1;
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// rationale:
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// - we could easily determine the 2d driver via EnumDisplaySettings,
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// but we want to query the actual OpenGL driver. see
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// http://www.opengl.org/discussion_boards/ubb/Forum3/HTML/009679.html ;
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// in short, we need the exact OpenGL driver version because some
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// driver packs (e.g. Omega) mix and match DLLs.
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// - an alternative implementation would be to enumerate all
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// DLLs loaded into the process, and check for a glBegin export.
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// that requires toolhelp/PSAPI (a bit complicated) and telling
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// ICD/opengl32.dll apart (not future-proof).
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// - therefore, we stick with the OpenGLDrivers approach. since there is
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// no good way to determine which of the subkeys (e.g. nvoglnt) is
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// active (several may exist due to previously removed drivers),
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// we just display all of them. it is obvious from looking at
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// gfx_card which one is correct; we thus avoid driver-specific
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// name checks and reporting incorrectly.
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int ret = -1; // single point of exit (for RegCloseKey)
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DWORD i;
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char drv_name[MAX_PATH+1];
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dll_list_init(gfx_drv_ver, GFX_DRV_VER_LEN);
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HKEY hkOglDrivers;
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const char* key = "SOFTWARE\\Microsoft\\Windows NT\\CurrentVersion\\OpenGLDrivers";
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if(RegOpenKeyEx(HKEY_LOCAL_MACHINE, key, 0, KEY_READ, &hkOglDrivers) != 0)
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return -1;
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// for each subkey (i.e. set of installed OpenGL drivers):
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for(i = 0; ; i++)
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{
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char set_name[32];
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DWORD set_name_len = ARRAY_SIZE(set_name);
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LONG err = RegEnumKeyEx(hkOglDrivers, i, set_name, &set_name_len, 0, 0,0, 0);
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if(err != ERROR_SUCCESS) // error or no more items - bail
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break;
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HKEY hkSet;
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if(RegOpenKeyEx(hkOglDrivers, set_name, 0, KEY_QUERY_VALUE, &hkSet) == 0)
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{
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DWORD drv_name_len = ARRAY_SIZE(drv_name)-5; // for ".dll"
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if(RegQueryValueEx(hkSet, "Dll", 0, 0, (LPBYTE)drv_name, &drv_name_len) == 0)
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ret = dll_list_add(drv_name);
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RegCloseKey(hkSet);
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}
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} // for each subkey
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// for each value:
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// (some old drivers, e.g. S3 Super Savage, store their ICD name in a
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// single REG_SZ value. we therefore include those as well.)
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for(i = 0; ; i++)
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{
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char value_name[100]; // we don't need this, but RegEnumValue fails otherwise.
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DWORD value_name_len = ARRAY_SIZE(value_name);
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DWORD type;
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DWORD drv_name_len = ARRAY_SIZE(drv_name)-5; // for ".dll"
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DWORD err = RegEnumValue(hkOglDrivers, i, value_name,&value_name_len,
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0, &type, (LPBYTE)drv_name,&drv_name_len);
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if(err != ERROR_SUCCESS) // error or no more items - bail
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break;
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if(type == REG_SZ)
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ret = dll_list_add(drv_name);
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} // for each value
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RegCloseKey(hkOglDrivers);
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return ret;
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}
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int win_get_gfx_info()
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{
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int err1 = win_get_gfx_card();
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int err2 = win_get_gfx_drv_ver();
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// don't exit before trying both
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CHECK_ERR(err1);
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CHECK_ERR(err2);
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return 0;
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}
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//////////////////////////////////////////////////////////////////////////////
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//
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// sound card / driver version
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//
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//////////////////////////////////////////////////////////////////////////////
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// note: OpenAL alGetString is worthless: it only returns OpenAL API version
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// and renderer (e.g. "Software").
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// ensures each OpenAL DLL is only listed once (even if present in several
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// directories on our search path).
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typedef std::set<std::string> StringSet;
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// if this directory entry is an OpenAL DLL, add it to our list.
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// (matches "*oal.dll" and "*OpenAL*", as with OpenAL router's search)
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// called by add_oal_dlls_in_dir.
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//
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// note: we need the full DLL path for dll_list_add but DirEnt only gives us
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// the name. for efficiency, we append this in a PathPackage allocated by
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// add_oal_dlls_in_dir.
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static int add_if_oal_dll(const DirEnt* ent, PathPackage* pp, StringSet* dlls)
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{
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const char* fn = ent->name;
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// skip non-files.
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if(!DIRENT_IS_DIR(ent))
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return 0;
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// skip if not an OpenAL DLL.
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const size_t len = strlen(fn);
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const bool oal = len >= 7 && !stricmp(fn+len-7, "oal.dll");
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const bool openal = strstr(fn, "OpenAL") != 0;
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if(!oal && !openal)
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return 0;
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// skip if already in StringSet (i.e. has already been dll_list_add-ed)
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std::pair<StringSet::iterator, bool> ret = dlls->insert(fn);
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if(!ret.second) // insert failed - element already there
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return 0;
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RETURN_ERR(pp_append_file(pp, fn));
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return dll_list_add(pp->path);
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}
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// find all OpenAL DLLs in a dir (via file_enum and add_if_oal_dll).
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// call in library search order (exe dir, then win sys dir); otherwise,
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// DLLs in the executable's starting directory hide those of the
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// same name in the system directory.
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//
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// <dir>: no trailing.
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static int add_oal_dlls_in_dir(const char* dir, StringSet* dlls)
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{
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PathPackage pp;
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RETURN_ERR(pp_set_dir(&pp, dir));
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DirIterator d;
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RETURN_ERR(dir_open(dir, &d));
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DirEnt ent;
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for(;;) // instead of while to avoid warning
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{
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int err = dir_next_ent(&d, &ent);
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if(err != 0)
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break;
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(void)add_if_oal_dll(&ent, &pp, dlls);
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}
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(void)dir_close(&d);
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return 0;
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}
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// DS3D driver path; filled by ds_enum, used by win_get_snd_info.
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// side effect: remains zeroed if there's no sound card installed.
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static char ds_drv_path[MAX_PATH+1];
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// store sound card name and path to DirectSound driver.
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// called for each DirectSound driver, but aborts after first valid driver.
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static BOOL CALLBACK ds_enum(void* UNUSED(guid), const char* description,
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const char* module, void* UNUSED(ctx))
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{
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// skip first (dummy) entry, where description == "Primary Sound Driver".
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if(module[0] == '\0')
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return TRUE; // continue calling
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strcpy_s(snd_card, SND_CARD_LEN, description);
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snprintf(ds_drv_path, ARRAY_SIZE(ds_drv_path), "%s\\drivers\\%s", win_sys_dir, module);
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// note: this directory is not in LoadLibrary's search list,
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// so we have to give the full pathname.
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// we assume the first "driver name" (sound card) is the one we want;
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// stick with that and stop calling.
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return FALSE;
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}
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int win_get_snd_info()
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{
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// get sound card name and DS driver path.
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if(DirectSoundEnumerateA((LPDSENUMCALLBACKA)ds_enum, (void*)0) != DS_OK)
|
|
debug_warn("DirectSoundEnumerate failed");
|
|
|
|
// there are apparently no sound card/drivers installed; so indicate.
|
|
// (the code below would fail and not produce reasonable output)
|
|
if(ds_drv_path[0] == '\0')
|
|
{
|
|
strcpy_s(snd_card, SND_CARD_LEN, "(none)");
|
|
strcpy_s(snd_drv_ver, SND_DRV_VER_LEN, "(none)");
|
|
return 0;
|
|
}
|
|
|
|
// find all DLLs related to OpenAL, retrieve their versions,
|
|
// and store in snd_drv_ver string.
|
|
dll_list_init(snd_drv_ver, SND_DRV_VER_LEN);
|
|
(void)dll_list_add(ds_drv_path);
|
|
StringSet dlls; // ensures uniqueness
|
|
(void)add_oal_dlls_in_dir(win_exe_dir, &dlls);
|
|
(void)add_oal_dlls_in_dir(win_sys_dir, &dlls);
|
|
return 0;
|
|
}
|