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qzdoom-gpl/src/m_misc.cpp
Randy Heit 0645053431 Add support for standard file paths on Windows. 
- If the current user does not have write permissions for the directory
  zdoom.exe is located in, use standard folder paths located in their home
  directory instead. This is a common scenario when people put ZDoom into
  Program Files. (Ironically, zdoom.ini used to be in AppData, buth then
  people complained when it wasn't in the same directory as zdoom.exe, so
  it got turned into zdoom-<user>.ini so at least it could retain some
  multi-user support. I'm not sure when the AppData support was removed,
  though, since it should have still been kept around for migrating
  configs to the new name.)
2013-09-14 23:07:59 -05:00

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// Emacs style mode select -*- C++ -*-
//-----------------------------------------------------------------------------
//
// $Id:$
//
// Copyright (C) 1993-1996 by id Software, Inc.
//
// This source is available for distribution and/or modification
// only under the terms of the DOOM Source Code License as
// published by id Software. All rights reserved.
//
// The source is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
// for more details.
//
//
// $Log:$
//
// DESCRIPTION:
// Default Config File.
// Screenshots.
//
//-----------------------------------------------------------------------------
#include <sys/stat.h>
#include <sys/types.h>
#include <fcntl.h>
#include <stdlib.h>
#include <errno.h>
#include <stdlib.h>
#include <time.h>
#include "doomtype.h"
#include "version.h"
#if defined(_WIN32)
#include <io.h>
#else
#include <unistd.h>
#endif
#include <ctype.h>
#include "doomdef.h"
#include "m_swap.h"
#include "m_argv.h"
#include "w_wad.h"
#include "c_cvars.h"
#include "c_dispatch.h"
#include "c_bind.h"
#include "i_system.h"
#include "i_video.h"
#include "v_video.h"
#include "r_defs.h"
#include "hu_stuff.h"
// State.
#include "doomstat.h"
// Data.
#include "m_misc.h"
#include "m_png.h"
#include "cmdlib.h"
#include "g_game.h"
#include "gi.h"
#include "gameconfigfile.h"
FGameConfigFile *GameConfig;
CVAR(Bool, screenshot_quiet, false, CVAR_ARCHIVE|CVAR_GLOBALCONFIG);
CVAR(String, screenshot_type, "png", CVAR_ARCHIVE|CVAR_GLOBALCONFIG);
CVAR(String, screenshot_dir, "", CVAR_ARCHIVE|CVAR_GLOBALCONFIG);
EXTERN_CVAR(Bool, longsavemessages);
static long ParseCommandLine (const char *args, int *argc, char **argv);
//
// M_WriteFile
//
#ifndef O_BINARY
#define O_BINARY 0
#endif
bool M_WriteFile (char const *name, void *source, int length)
{
int handle;
int count;
handle = open ( name, O_WRONLY | O_CREAT | O_TRUNC | O_BINARY, 0666);
if (handle == -1)
return false;
count = write (handle, source, length);
close (handle);
if (count < length)
return false;
return true;
}
//
// M_ReadFile
//
int M_ReadFile (char const *name, BYTE **buffer)
{
int handle, count, length;
struct stat fileinfo;
BYTE *buf;
handle = open (name, O_RDONLY | O_BINARY, 0666);
if (handle == -1)
I_Error ("Couldn't read file %s", name);
if (fstat (handle,&fileinfo) == -1)
I_Error ("Couldn't read file %s", name);
length = fileinfo.st_size;
buf = new BYTE[length];
count = read (handle, buf, length);
close (handle);
if (count < length)
I_Error ("Couldn't read file %s", name);
*buffer = buf;
return length;
}
//---------------------------------------------------------------------------
//
// PROC M_FindResponseFile
//
//---------------------------------------------------------------------------
void M_FindResponseFile (void)
{
const int limit = 100; // avoid infinite recursion
int added_stuff = 0;
int i = 1;
while (i < Args->NumArgs())
{
if (Args->GetArg(i)[0] != '@')
{
i++;
}
else
{
char **argv;
char *file = NULL;
int argc = 0;
FILE *handle;
int size;
long argsize = 0;
int index;
// Any more response files after the limit will be removed from the
// command line.
if (added_stuff < limit)
{
// READ THE RESPONSE FILE INTO MEMORY
handle = fopen (Args->GetArg(i) + 1,"rb");
if (!handle)
{ // [RH] Make this a warning, not an error.
Printf ("No such response file (%s)!\n", Args->GetArg(i) + 1);
}
else
{
Printf ("Found response file %s!\n", Args->GetArg(i) + 1);
fseek (handle, 0, SEEK_END);
size = ftell (handle);
fseek (handle, 0, SEEK_SET);
file = new char[size+1];
fread (file, size, 1, handle);
file[size] = 0;
fclose (handle);
argsize = ParseCommandLine (file, &argc, NULL);
}
}
else
{
Printf ("Ignored response file %s.\n", Args->GetArg(i) + 1);
}
if (argc != 0)
{
argv = (char **)M_Malloc (argc*sizeof(char *) + argsize);
argv[0] = (char *)argv + argc*sizeof(char *);
ParseCommandLine (file, NULL, argv);
// Create a new argument vector
DArgs *newargs = new DArgs;
// Copy parameters before response file.
for (index = 0; index < i; ++index)
newargs->AppendArg(Args->GetArg(index));
// Copy parameters from response file.
for (index = 0; index < argc; ++index)
newargs->AppendArg(argv[index]);
// Copy parameters after response file.
for (index = i + 1; index < Args->NumArgs(); ++index)
newargs->AppendArg(Args->GetArg(index));
// Use the new argument vector as the global Args object.
Args = newargs;
if (++added_stuff == limit)
{
Printf("Response file limit of %d hit.\n", limit);
}
}
else
{
// Remove the response file from the Args object
Args->RemoveArg(i);
}
if (file != NULL)
{
delete[] file;
}
}
}
if (added_stuff > 0)
{
// DISPLAY ARGS
Printf ("Added %d response file%s, now have %d command-line args:\n",
added_stuff, added_stuff > 1 ? "s" : "", Args->NumArgs ());
for (int k = 1; k < Args->NumArgs (); k++)
Printf ("%s\n", Args->GetArg (k));
}
}
// ParseCommandLine
//
// This is just like the version in c_dispatch.cpp, except it does not
// do cvar expansion.
static long ParseCommandLine (const char *args, int *argc, char **argv)
{
int count;
char *buffplace;
count = 0;
buffplace = NULL;
if (argv != NULL)
{
buffplace = argv[0];
}
for (;;)
{
while (*args <= ' ' && *args)
{ // skip white space
args++;
}
if (*args == 0)
{
break;
}
else if (*args == '\"')
{ // read quoted string
char stuff;
if (argv != NULL)
{
argv[count] = buffplace;
}
count++;
args++;
do
{
stuff = *args++;
if (stuff == '\\' && *args == '\"')
{
stuff = '\"', args++;
}
else if (stuff == '\"')
{
stuff = 0;
}
else if (stuff == 0)
{
args--;
}
if (argv != NULL)
{
*buffplace = stuff;
}
buffplace++;
} while (stuff);
}
else
{ // read unquoted string
const char *start = args++, *end;
while (*args && *args > ' ' && *args != '\"')
args++;
end = args;
if (argv != NULL)
{
argv[count] = buffplace;
while (start < end)
*buffplace++ = *start++;
*buffplace++ = 0;
}
else
{
buffplace += end - start + 1;
}
count++;
}
}
if (argc != NULL)
{
*argc = count;
}
return (long)(buffplace - (char *)0);
}
//
// M_SaveDefaults
//
bool M_SaveDefaults (const char *filename)
{
FString oldpath;
bool success;
if (filename != NULL)
{
oldpath = GameConfig->GetPathName();
GameConfig->ChangePathName (filename);
}
GameConfig->ArchiveGlobalData ();
if (gameinfo.ConfigName.IsNotEmpty())
{
GameConfig->ArchiveGameData (gameinfo.ConfigName);
}
success = GameConfig->WriteConfigFile ();
if (filename != NULL)
{
GameConfig->ChangePathName (filename);
}
return success;
}
void M_SaveDefaultsFinal ()
{
while (!M_SaveDefaults (NULL) && I_WriteIniFailed ())
{
/* Loop until the config saves or I_WriteIniFailed() returns false */
}
delete GameConfig;
GameConfig = NULL;
}
CCMD (writeini)
{
const char *filename = (argv.argc() == 1) ? NULL : argv[1];
if (!M_SaveDefaults (filename))
{
Printf ("Writing config failed: %s\n", strerror(errno));
}
else
{
Printf ("Config saved.\n");
}
}
//
// M_LoadDefaults
//
void M_LoadDefaults ()
{
GameConfig = new FGameConfigFile;
GameConfig->DoGlobalSetup ();
atterm (M_SaveDefaultsFinal);
}
//
// SCREEN SHOTS
//
struct pcx_t
{
char manufacturer;
char version;
char encoding;
char bits_per_pixel;
unsigned short xmin;
unsigned short ymin;
unsigned short xmax;
unsigned short ymax;
unsigned short hdpi;
unsigned short vdpi;
unsigned char palette[48];
char reserved;
char color_planes;
unsigned short bytes_per_line;
unsigned short palette_type;
char filler[58];
};
//
// WritePCXfile
//
void WritePCXfile (FILE *file, const BYTE *buffer, const PalEntry *palette,
ESSType color_type, int width, int height, int pitch)
{
BYTE temprow[MAXWIDTH * 3];
const BYTE *data;
int x, y;
int runlen;
int bytes_per_row_minus_one;
BYTE color;
pcx_t pcx;
pcx.manufacturer = 10; // PCX id
pcx.version = 5; // 256 (or more) colors
pcx.encoding = 1;
pcx.bits_per_pixel = 8; // 256 (or more) colors
pcx.xmin = 0;
pcx.ymin = 0;
pcx.xmax = LittleShort((unsigned short)(width-1));
pcx.ymax = LittleShort((unsigned short)(height-1));
pcx.hdpi = LittleShort((unsigned short)75);
pcx.vdpi = LittleShort((unsigned short)75);
memset (pcx.palette, 0, sizeof(pcx.palette));
pcx.reserved = 0;
pcx.color_planes = (color_type == SS_PAL) ? 1 : 3; // chunky image
pcx.bytes_per_line = width + (width & 1);
pcx.palette_type = 1; // not a grey scale
memset (pcx.filler, 0, sizeof(pcx.filler));
fwrite (&pcx, 128, 1, file);
bytes_per_row_minus_one = ((color_type == SS_PAL) ? width : width * 3) - 1;
// pack the image
for (y = height; y > 0; y--)
{
switch (color_type)
{
case SS_PAL:
data = buffer;
break;
case SS_RGB:
// Unpack RGB into separate planes.
for (int i = 0; i < width; ++i)
{
temprow[i ] = buffer[i*3];
temprow[i + width ] = buffer[i*3 + 1];
temprow[i + width * 2] = buffer[i*3 + 2];
}
data = temprow;
break;
case SS_BGRA:
// Unpack RGB into separate planes, discarding A.
for (int i = 0; i < width; ++i)
{
temprow[i ] = buffer[i*4 + 2];
temprow[i + width ] = buffer[i*4 + 1];
temprow[i + width * 2] = buffer[i*4];
}
data = temprow;
break;
default:
// Should never happen.
return;
}
buffer += pitch;
color = *data++;
runlen = 1;
for (x = bytes_per_row_minus_one; x > 0; x--)
{
if (*data == color)
{
runlen++;
}
else
{
if (runlen > 1 || color >= 0xc0)
{
while (runlen > 63)
{
putc (0xff, file);
putc (color, file);
runlen -= 63;
}
if (runlen > 0)
{
putc (0xc0 + runlen, file);
}
}
if (runlen > 0)
{
putc (color, file);
}
runlen = 1;
color = *data;
}
data++;
}
if (runlen > 1 || color >= 0xc0)
{
while (runlen > 63)
{
putc (0xff, file);
putc (color, file);
runlen -= 63;
}
if (runlen > 0)
{
putc (0xc0 + runlen, file);
}
}
if (runlen > 0)
{
putc (color, file);
}
if (width & 1)
putc (0, file);
}
// write the palette
if (color_type == SS_PAL)
{
putc (12, file); // palette ID byte
for (x = 0; x < 256; x++, palette++)
{
putc (palette->r, file);
putc (palette->g, file);
putc (palette->b, file);
}
}
}
//
// WritePNGfile
//
void WritePNGfile (FILE *file, const BYTE *buffer, const PalEntry *palette,
ESSType color_type, int width, int height, int pitch)
{
char software[100];
mysnprintf(software, countof(software), GAMENAME " %s", GetVersionString());
if (!M_CreatePNG (file, buffer, palette, color_type, width, height, pitch) ||
!M_AppendPNGText (file, "Software", software) ||
!M_FinishPNG (file))
{
Printf ("Could not create screenshot.\n");
}
}
//
// M_ScreenShot
//
static bool FindFreeName (FString &fullname, const char *extension)
{
FString lbmname;
int i;
for (i = 0; i <= 9999; i++)
{
const char *gamename = gameinfo.ConfigName;
time_t now;
tm *tm;
time(&now);
tm = localtime(&now);
if (tm == NULL)
{
lbmname.Format ("%sScreenshot_%s_%04d.%s", fullname.GetChars(), gamename, i, extension);
}
else if (i == 0)
{
lbmname.Format ("%sScreenshot_%s_%04d%02d%02d_%02d%02d%02d.%s", fullname.GetChars(), gamename,
tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec,
extension);
}
else
{
lbmname.Format ("%sScreenshot_%s_%04d%02d%02d_%02d%02d%02d_%02d.%s", fullname.GetChars(), gamename,
tm->tm_year + 1900, tm->tm_mon + 1, tm->tm_mday,
tm->tm_hour, tm->tm_min, tm->tm_sec,
i, extension);
}
if (!FileExists (lbmname.GetChars()))
{
fullname = lbmname;
return true; // file doesn't exist
}
}
return false;
}
void M_ScreenShot (const char *filename)
{
FILE *file;
FString autoname;
bool writepcx = (stricmp (screenshot_type, "pcx") == 0); // PNG is the default
// find a file name to save it to
if (filename == NULL || filename[0] == '\0')
{
size_t dirlen;
autoname = Args->CheckValue("-shotdir");
if (autoname.IsEmpty())
{
autoname = screenshot_dir;
}
dirlen = autoname.Len();
if (dirlen == 0)
{
autoname = M_GetScreenshotsPath();
dirlen = autoname.Len();
}
if (dirlen > 0)
{
if (autoname[dirlen-1] != '/' && autoname[dirlen-1] != '\\')
{
autoname += '/';
}
}
autoname = NicePath(autoname);
CreatePath(autoname);
if (!FindFreeName (autoname, writepcx ? "pcx" : "png"))
{
Printf ("M_ScreenShot: Delete some screenshots\n");
return;
}
}
else
{
autoname = filename;
DefaultExtension (autoname, writepcx ? ".pcx" : ".png");
}
// save the screenshot
const BYTE *buffer;
int pitch;
ESSType color_type;
screen->GetScreenshotBuffer(buffer, pitch, color_type);
if (buffer != NULL)
{
PalEntry palette[256];
if (color_type == SS_PAL)
{
screen->GetFlashedPalette(palette);
}
file = fopen (autoname, "wb");
if (file == NULL)
{
Printf ("Could not open %s\n", autoname.GetChars());
screen->ReleaseScreenshotBuffer();
return;
}
if (writepcx)
{
WritePCXfile(file, buffer, palette, color_type,
screen->GetWidth(), screen->GetHeight(), pitch);
}
else
{
WritePNGfile(file, buffer, palette, color_type,
screen->GetWidth(), screen->GetHeight(), pitch);
}
fclose(file);
screen->ReleaseScreenshotBuffer();
if (!screenshot_quiet)
{
int slash = -1;
if (!longsavemessages) slash = autoname.LastIndexOfAny(":/\\");
Printf ("Captured %s\n", autoname.GetChars()+slash+1);
}
}
else
{
if (!screenshot_quiet)
{
Printf ("Could not create screenshot.\n");
}
}
}
CCMD (screenshot)
{
if (argv.argc() == 1)
G_ScreenShot (NULL);
else
G_ScreenShot (argv[1]);
}
//
// M_ZlibError
//
FString M_ZLibError(int zerr)
{
if (zerr >= 0)
{
return "OK";
}
else if (zerr < -6)
{
FString out;
out.Format("%d", zerr);
return out;
}
else
{
static const char *errs[6] =
{
"Errno",
"Stream Error",
"Data Error",
"Memory Error",
"Buffer Error",
"Version Error"
};
return errs[-zerr - 1];
}
}
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