ModdingWiki - User contributions [en-gb]

Dave 2 Huffman compression

2015-04-21T16:04:56Z

Napalm: /* Notes */

[[Dangerous Dave 2]] Huffman compression is the means by which most of the non-tileset graphics are compressed. (Screens and sprites.)

The file is composed of three parts, a brief header, the Huffman binary tree, and the compressed data. The 'header' consists of the string 'HUFF' followed by a dword giving the decompressed file size. The Huffman table is of the usual format, giving a fixed size of 404 bytes before the compressed data.

==Notes==

This format reverse engineered by [[User:Napalm]]

The [[Huffman Compression]] page has source code for producing a Huffman table in this format that doesn't decompress data, so the raw data can be copied right after it.

[[Category:Dangerous Dave 2]]
[[Category:File Formats]]

Dave 2 Intro format

2015-04-21T16:03:49Z

Napalm: Added user profile links.

The <tt>INTRO.DD2</tt> file stores a masked image used at the start of [[Dangerous Dave 2]]. It differs in format and compression from all other files used in the game.

The file is a 256x64 [[Raw EGA data]] image compressed using [[RLEW compression]]] The color dark blue is transparent here, acting as a mask while only needing 4 EGA planes.

==Notes==

Dave 2 uses a trigonometric function to work out the image's size and co-ordinates when displaying it.
Format reverse engineered by [[User:Napalm]] and [[User:Levellass]]

[[Category:Dangerous Dave 2]]
[[Category:File Formats]]
[[Category:Graphics Files]]

User:Napalm

2015-04-21T16:03:15Z

Napalm: Adding profile.

I've been around in the keen-modding community since 2007. I grew up with DOS games and I've always had a desire to make one. Never actually getting around to coming up with an entire game plot. I satisfied myself with working out how the games work 'under-the-hood'. I have contributed a little here and there over the years. Every-time I get a urge to go old skool I revisit and dig out my old code.

Viacom New Media Graphics File Format

2010-02-09T23:06:36Z

Napalm:

[[Beavis and Butthead In Virtual Stupidity]] stores its graphics externally in .VNM/.000 files. This information here is preliminary and needs verification and is subject to change.

VNM_HEADER: VNM File Header
{|class="wikitable"
!Data Type!!Description
|-
|UINT32LE Signature||File Signature (should match 0x564E4D1A aka "VNM\x1A")
|-
|UINT32LE Flags||Possibly file information flags.
|-
|UINT32LE Size||Size Of Data
|-
|UINT32LE OffsetPal|| Offset to Pal Data.
|-
|UINT32LE OffsetUnknown1||Offset to currently Unknown Data.
|-
|UINT32LE OffsetUnknown2||Offset to currently Unknown Data.
|-
|UINT32LE OffsetImages||Offset to VNM_IMAGE array.
|-
|UINT32LE PalIndexFirst||First Valid Index in Colour Palette.
|-
|UINT32LE PalIndexSize||Count of Palette Indexes stored in file at OffsetPal.
|-
|UINT32LE ImageCount||Count of Images stored in file at OffsetImages.
|-
|}

[[File:Spr196.png|100px|right|Sprite 196 from BBLOOGIE Mini-game]]
VNM_IMAGE: VNM Image Header
{|class="wikitable"
!Data Type!!Description
|-
|UINT32LE Offset||Offset in file to where raw image data starts.
|-
|UINT32LE Type||0 = Bitmap, 1 = Sprite
|-
|UINT32LE Width||Width of this Image
|-
|UINT32LE Height||Height of this Image.
|-
|UINT32LE XPos||XPos of this Image.
|-
|UINT32LE YPos||YPos of this Image.
|-
|}

This is test code that decompresses/decodes/extracts Sprite 196 from VNM raw data in the BBLOOGIE Mini-game. Image can be seen to right.

[http://www.netcore2k.net/downloads/spr196.zip spr196.zip]

An somewhat explained version of the raw data is below.
<pre>F800 19 FD00 18F700 0F FB
F901 18 19 FF00 18FF0117 19 F801 0E 10 FD00 0F
FA07 19 18 18 17 18 19 17 19 F801 0E 10 FD00 0F
FA08 19 17 19 19 17 19 18 18 19 FF00 19 FB05 0F 11 0F 11 0F 10
FB0B 19 18 17 19 18 17 18 18 17 19 17 18 FB05 10 11 10 11 0E 11
FB0C 18 18 19 19 18 17 18 19 17 19 17 19 18 FC04 11 0E 0F 10 0E FF
FC0D 19 17 19 18 19 19 17 18 19 17 18 17 19 18 FD05 10 0E 11 10 11 0F FF
FC0D 19 17 19 18 19 17 18 19 17 18 19 17 19 17 FD05 10 0F 11 11 10 11 FF
FC0D 18 17 19 17 18 17 19 18 17 18 19 18 19 19 FC04 11 10 10 0F 10 FF
FC0E 18 18 19 17 17 19 19 18 17 18 19 19 18 19 18 FD03 11 0F 0F 10 FE
FC0E 19 18 19 18 19 18 19 18 17 18 19 18 17 18 19 FD02 11 11 10 FD
FC0E 19 18 19 18 19 17 19 19 17 18 19 17 17 19 19 FD02 11 10 0F FD
FC0E 19 17 18 10 0F 18 19 17 18 19 19 18 17 19 19 FD02 11 0F 10 FD
FC0E 18 17 19 0F 0E 0F 18 18 19 0F 10 18 17 19 18 FD02 11 0F 10 FD
FC0E 19 17 19 0E 0E 0E 0E 0E 0E 0E 0E 0F 18 19 18 FD02 11 0E 10 FD
FC0E 19 18 10 0E 0F 0F 0E 0E 0E 0E 0F 0F 10 17 19 FD02 11 0E 10 FD
FC0E 18 19 0F 10 11 11 10 0E 0F 10 11 10 0F 17 19 FD02 11 0E 10 FD
FC0E 17 19 0E 0F 10 10 11 0F 10 11 10 0F 0E 18 19 FD02 11 0E 10 FD
FC0E 19 17 10 0E 0F 0E 0F 0E 10 0F 0E 0E 0E 19 18 FD02 11 0E 10 FD
FC0E 18 11 0F 0E 0E 0F 10 0E 0E 10 0F 0E 0E 19 17 FD02 11 0E 10 FD
FB0D 10 0F 0E 0E 10 11 0F 11 10 10 0E 0F 10 17 FD02 10 0E 11 FD
FB0C 11 10 0F 0E 0E 0F 10 10 0F 0F 0E 0F 0FFC02 10 0E 11 FD
FA0B 11 0F 0E 0E 0E 0F 0F 0F 0E 0E 0F 11FC02 0E 0F 11 FD
FA0B 11 10 0F 0E 0F 20 10 20 0F 0E 0F 11FD02 10 0E 10 FC
F90A 10 0F 0E 10 20 20 20 10 0F 10 11FD02 0E 0F 11 FC
F909 11 0F 0E 11 15 16 15 11 0F 10FD02 10 0E 10 FB
F909 11 0F 0E 11 1C 1C 1C 11 0F 11FD02 0E 0F 11 FB
F808 10 0F 10 11 1C 11 10 0F 11FE02 10 0E 10 FA
F807 10 0F 0F 10 11 10 0F 10FE03 10 0E 0F 11 FA
F807 11 10 0F 0E 0F 0E 0F 11FF041B 10 0E 10 11 FA
F70B 11 10 0F 0E 0F 10 11 17 1B 10 0F 11 F9
F70B 11 10 10 10 10 11 17 1B 1A 1B 10 11 F9
F60A 11 10 0F 10 11 1C 1B 1A 1A 1B 1B F9
F70B 1B 1B 10 10 10 1B 1C 1B 1A 1A 1A 1C F9
F90D 1B 1B 1A 1A 1B 1B 1B 1A 1B 1A 1A 1A 1B 1C F9
FA0D 1B 1A 1A 1A 1A 1A 1A 1A 1A 1A 1A 1A 1B 1C F8
FB0E 1B 1A 1A 1A 1A 1A 1A 1A 1A 1A 1A 1A 1A 1B 1C F8
FC0E 1B 1A 1A 1A 1B 1A 1A 1A 1A 1A 1A 1A 1A 1B 1C F7
FC0E 1B 1A 1A 1B 1C 1B 1A 1A 1A 1A 1A 1A 1B 1B 1C F7
FD0F 10 10 1B 1B 1C 1B 1B 1A 1A 1A 1A 1A 1A 1B 1B 1C F7
FD0F 10 0F 10 1C 1C 1B 1A 1A 1A 1A 1A 1A 1A 1B 1B 1C F7
FE03 10 0E 10 11FF0A1C 1B 1A 1A 1A 1A 1A 1A 1A 1B 1C F6
FE02 10 0F 11 FE0A1C 1B 1A 1A 1A 1A 1A 1A 1A 1B 1C F6
FF03 10 0E 10 11 FE0A1C 1B 1A 1A 1A 1A 1A 1A 1A 1B 1C F6
FF02 10 0F 11 FD0A 1C 1B 1A 1A 1A 1A 1A 1A 1A 1B 1C F6
FF02 10 10 11 FD0A 1C 1B 1A 1A 1A 1A 1A 1A 1A 1B 1C F6
02 10 0F 10 FC0A 1C 1B 1A 1A 1A 1A 1A 1A 1A 1B 1C F6
02 10 0E 11 FC0A 1C 1B 1A 1A 1A 1A 1A 1A 1A 1B 1C F6
02 10 0E 11 FC0A 1C 1B 1A 1A 1A 1A 1A 1A 1A 1B 1C F6
02 10 0E 11 FC0A 1C 1B 1A 1A 1A 1A 1A 1A 1A 1B 1C F6
02 10 0E 11 FD0B1C 1B 1A 1A 1A 1A 1A 1A 1A 1A 1B 1C F6
02 10 0F 11 FD0B1C 1B 1A 1A 1A 1A 1A 1A 1A 1A 1B 1C F6
02 10 10 11 FD0B1C 1B 1A 1A 1A 1A 1A 1A 1A 1A 1B 1C F6
03 10 0F 0F 10 FE0B1C 1B 1A 1A 1A 1A 1A 1A 1A 1A 1B 1C F6
04 11 0E 10 0F 10FF0B1C 1B 1B 1A 1A 1A 1A 1A 1A 1B 1B 1C F6
03 11 0E 0F 11 FE0B1C 1C 1C 1B 1B 1B 1B 1B 1B 1C 1C 1C F6
03 11 0F 0E 10 FE0B22 22 22 21 21 21 21 21 21 21 22 22 F6
FF02 11 11 11 FE0B22 21 21 20 20 20 20 20 20 20 21 22 F6
FA0B 22 21 20 20 20 20 20 20 20 20 21 22 F6
FA0B 22 21 20 20 20 21 20 20 20 20 21 22 F6
FA0B 22 21 20 20 21 22 21 20 20 20 21 22 F6
FA0B 22 21 20 20 21 22 22 21 20 20 21 22 F6
FA0B 22 21 21 21 21 22 22 21 21 21 21 22 F6
F909 11 10 0F 10 11 11 10 0F 10 11 F5
F909 11 0F 0E 0F 11 11 0F 0E 0F 11 F5
F909 11 0F 0E 0F 11 11 0F 0E 0F 11 F5
F909 11 0F 0E 0F 11 11 0F 0E 0F 11 F5
F909 11 0F 0E 0F 11 11 0F 0E 0F 11 F5
F909 11 10 0E 0F 11 11 0F 0E 10 11 F5
F807 11 0E 0F 11 11 0F 0E 11 F4
F807 11 0E 0F 11 11 0F 0E 11 F4
F807 11 0E 0F 11 11 0F 0E 11 F4
F807 11 0E 0F 11 11 0F 0E 11 F4
F807 11 0E 10 11 11 10 0E 11 F4
F802 16 16 16 FE02 16 16 16 F4
F802 16 15 16 FE02 16 15 16 F4
F802 16 15 16 FE02 16 15 16 F4
F802 16 15 16 FE02 16 15 16 F4
F807 1C 1C 1C 1C 1C 1C 1C 1C F4
FA0B 1C 1B 1A 1B 1B 1C 1C 1B 1B 1A 1B 1C F6
FB0D 1C 1B 1A 1B 1B 1C 1C 1C 1C 1B 1B 1A 1B 1C F7
FB04 1C 1C 1C 1C 1C FC04 1C 1C 1C 1C 1C F7
</pre>

Some current BETA demo code is below. Fully functional.
<pre>//
// .VNM/.000 Image Extractor - by Napalm
// BETA - Please do not use this in production mods
//
// License: Creative Commons Attribution-Share Alike 2.0 UK: England & Wales
// http://creativecommons.org/licenses/by-sa/2.0/uk/
//
// If you use this all or part of my code please credit me as the license states.
//
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include <pshpack2.h>
typedef struct _BITMAPFILEHDR {
unsigned short type;
unsigned long size;
unsigned short reserved1;
unsigned short reserved2;
unsigned long offset;
} BITMAPFILEHDR;

typedef struct _BITMAPINFOHDR {
unsigned long size;
signed long width;
signed long height;
unsigned short planes;
unsigned short bitcount;
unsigned long compression;
unsigned long image_size;
signed long x_per_meter;
signed long y_per_meter;
unsigned long colors_used;
unsigned long colors_important;
} BITMAPINFOHDR;
#include <poppack.h>

typedef struct _VNMSPRITE {
unsigned long offset; // to bitmap/frame data
unsigned long type; // 0 = Bitmap, 1 = Sprite
signed long width;
signed long height;
signed long x;
signed long y;
} VNMSPRITE;

typedef struct _VNMHEADER {
unsigned long signature; // 0x564E4D1A 'VNM\x1A' // 1.10 version?
unsigned long zero; // 0 ? start of file? always zero?
unsigned long size; // 324764 ? size of file
unsigned long paletteoffset;
unsigned long offset1; // fixed 256 long array of something?
unsigned long offset2; // fixed 256 long array of something?
unsigned long spriteoffset; //
unsigned long palettestart; // 10 start palette index?
unsigned long palettesize; // 236 number of palette entries?
signed long spritecount; // 212 number of sprite index?
} VNMHEADER;

void extractpalette(unsigned long *palette, unsigned char *data,
unsigned long start, unsigned long size)
{
unsigned char buffer[4];
unsigned long index;

buffer[3] = 0;
memset(palette, 0, sizeof(unsigned long) * 256);
for(index = start; index < (start + size); index++){
buffer[0] = (data[2] << 2);
buffer[1] = (data[1] << 2);
buffer[2] = (data[0] << 2);
data += 3;
palette[index] = *(unsigned long *)buffer;
}
}

void extractbitmap(FILE *bmp, unsigned char *buffer,
VNMSPRITE *spr, BITMAPINFOHDR *bmpinfo, long rounding)
{
unsigned char *line = (buffer + spr->offset + bmpinfo->image_size);
char zerobuffer[4] = { 0 };

while(line > buffer + spr->offset){
line -= spr->width;
fwrite(line, 1, spr->width, bmp);
if(rounding)
fwrite(zerobuffer, 1, rounding, bmp);
}
}

void extractsprite(FILE *bmp, unsigned char *buffer,
VNMSPRITE *spr, BITMAPINFOHDR *bmpinfo, long rounding, int transparent)
{
unsigned long *index = (unsigned long *)(buffer + spr->offset);
unsigned char *row;
char zerobuffer[4] = { 0 };
int y, j, pixel, count, width, escape;

escape = (0x100 - spr->width);
for(y = (spr->height - 1); y >= 0; y--){
row = (buffer + index[y]);
j = width = spr->width;
while(j > 0){
pixel = *row++;
if(pixel >= escape){
count = (0x100 - pixel);
pixel = transparent;
row++; // whats this byte for?
while(count-- && j--)
fputc(pixel, bmp);
}else if(j == width && pixel < escape){
width++;
}else{
fputc(pixel, bmp);
j--;
}
}
if(rounding)
fwrite(zerobuffer, 1, rounding, bmp);
}
}

void initbmpheaders(BITMAPFILEHDR *filehdr, BITMAPINFOHDR *infohdr)
{
memset(filehdr, 0, sizeof(BITMAPFILEHDR));
memset(infohdr, 0, sizeof(BITMAPINFOHDR));
infohdr->size = sizeof(BITMAPINFOHDR);
infohdr->planes = 1;
infohdr->bitcount = 8; // BI_8_BIT
infohdr->compression = 0; // BI_RGB
filehdr->type = 'MB';
filehdr->offset = sizeof(BITMAPFILEHDR) +
infohdr->size + (sizeof(unsigned long) * 256);
}

int main(int argc, char *argv[])
{
unsigned long palette[256], *index;
unsigned char *buffer;
BITMAPFILEHDR bmpfile;
BITMAPINFOHDR bmpinfo;
VNMHEADER *hdr;
VNMSPRITE *spr;
FILE *vnm, *bmp;
long size, i, rounding;
char name[32];

vnm = fopen(argv[1], "rb");
if(!vnm){
perror(argv[1]);
exit(1);
}
fseek(vnm, 0, SEEK_END);
size = ftell(vnm);
fseek(vnm, 0, SEEK_SET);

buffer = (unsigned char *)malloc(size);
if(!buffer){
perror("malloc filesize");
exit(1);
}
fread(buffer, 1, size, vnm);
fclose(vnm);

hdr = (VNMHEADER *)buffer;
if(hdr->signature != 0x564E4D1A && hdr->signature != 0x1A4D4E56){
perror("invalid vnm signature");
free(buffer);
exit(1);
}

extractpalette(palette, buffer + hdr->paletteoffset, hdr->palettestart, hdr->palettesize);
initbmpheaders(&bmpfile, &bmpinfo);

index = (unsigned long *)(buffer + hdr->spriteoffset);
for(i = 0; i < hdr->spritecount; i++){ //
spr = (VNMSPRITE *)(buffer + index[i]);
printf("spr %#3d: %c(%#3d,%#3d)-(%#3d,%#3d)\n", i, ((spr->type) ? 'S':'B'),
spr->x, spr->y, spr->width, spr->height);

rounding = (spr->width % 4);
if(rounding > 0) rounding = (4 - rounding);
bmpinfo.width = spr->width;
bmpinfo.height = spr->height;
bmpinfo.image_size = ((spr->width + rounding) * spr->height);
bmpfile.size = (bmpfile.offset + bmpinfo.image_size);

sprintf(name, "output\\%03d.bmp", i);
bmp = fopen(name, "wb");
if(!bmp){
sprintf(name, "error opening %03d.bmp", i);
perror(name);
exit(1);
}

fwrite(&bmpfile, sizeof(bmpfile), 1, bmp);
fwrite(&bmpinfo, sizeof(bmpinfo), 1, bmp);
fwrite(palette, sizeof(palette), 1, bmp);

if(spr->type)
extractsprite(bmp, buffer, spr, &bmpinfo, rounding, 189); // 187
else
extractbitmap(bmp, buffer, spr, &bmpinfo, rounding);

fclose(bmp);
}

free(buffer);
return 0;
}
</pre>

== Credits ==
This file format was reverse engineered by [[User:Napalm|Napalm]].

[[Category:File Formats]]
[[Category:Graphics Files]]
[[Category:Beavis and Butthead In Virtual Stupidity]]

Viacom New Media Graphics File Format

2010-02-09T23:05:49Z

Napalm:

[[Beavis and Butthead In Virtual Stupidity]] stores its graphics externally in .VNM/.000 files. This information here is preliminary and needs verification and is subject to change.

VNM_HEADER: VNM File Header
{|class="wikitable"
!Data Type!!Description
|-
|UINT32LE Signature||File Signature (should match 0x564E4D1A aka "VNM\x1A")
|-
|UINT32LE Flags||Possibly file information flags.
|-
|UINT32LE Size||Size Of Data
|-
|UINT32LE OffsetPal|| Offset to Pal Data.
|-
|UINT32LE OffsetUnknown1||Offset to currently Unknown Data.
|-
|UINT32LE OffsetUnknown2||Offset to currently Unknown Data.
|-
|UINT32LE OffsetImages||Offset to VNM_IMAGE array.
|-
|UINT32LE PalIndexFirst||First Valid Index in Colour Palette.
|-
|UINT32LE PalIndexSize||Count of Palette Indexes stored in file at OffsetPal.
|-
|UINT32LE ImageCount||Count of Images stored in file at OffsetImages.
|-
|}

[[File:Spr196.png|100px|right|Sprite 196 from BBLOOGIE Mini-game]]
VNM_IMAGE: VNM Image Header
{|class="wikitable"
!Data Type!!Description
|-
|UINT32LE Offset||Offset in file to where raw image data starts.
|-
|UINT32LE Type||0 = Bitmap, 1 = Sprite
|-
|UINT32LE Width||Width of this Image
|-
|UINT32LE Height||Height of this Image.
|-
|UINT32LE XPos||XPos of this Image.
|-
|UINT32LE YPos||YPos of this Image.
|-
|}

This is test code that decompresses/decodes/extracts Sprite 196 from VNM raw data in the BBLOOGIE Mini-game. Image can be seen to right.

[http://www.netcore2k.net/downloads/spr196.zip spr196.zip]

An somewhat explained version of the raw data is below.
<code><pre>F800 19 FD00 18F700 0F FB
F901 18 19 FF00 18FF0117 19 F801 0E 10 FD00 0F
FA07 19 18 18 17 18 19 17 19 F801 0E 10 FD00 0F
FA08 19 17 19 19 17 19 18 18 19 FF00 19 FB05 0F 11 0F 11 0F 10
FB0B 19 18 17 19 18 17 18 18 17 19 17 18 FB05 10 11 10 11 0E 11
FB0C 18 18 19 19 18 17 18 19 17 19 17 19 18 FC04 11 0E 0F 10 0E FF
FC0D 19 17 19 18 19 19 17 18 19 17 18 17 19 18 FD05 10 0E 11 10 11 0F FF
FC0D 19 17 19 18 19 17 18 19 17 18 19 17 19 17 FD05 10 0F 11 11 10 11 FF
FC0D 18 17 19 17 18 17 19 18 17 18 19 18 19 19 FC04 11 10 10 0F 10 FF
FC0E 18 18 19 17 17 19 19 18 17 18 19 19 18 19 18 FD03 11 0F 0F 10 FE
FC0E 19 18 19 18 19 18 19 18 17 18 19 18 17 18 19 FD02 11 11 10 FD
FC0E 19 18 19 18 19 17 19 19 17 18 19 17 17 19 19 FD02 11 10 0F FD
FC0E 19 17 18 10 0F 18 19 17 18 19 19 18 17 19 19 FD02 11 0F 10 FD
FC0E 18 17 19 0F 0E 0F 18 18 19 0F 10 18 17 19 18 FD02 11 0F 10 FD
FC0E 19 17 19 0E 0E 0E 0E 0E 0E 0E 0E 0F 18 19 18 FD02 11 0E 10 FD
FC0E 19 18 10 0E 0F 0F 0E 0E 0E 0E 0F 0F 10 17 19 FD02 11 0E 10 FD
FC0E 18 19 0F 10 11 11 10 0E 0F 10 11 10 0F 17 19 FD02 11 0E 10 FD
FC0E 17 19 0E 0F 10 10 11 0F 10 11 10 0F 0E 18 19 FD02 11 0E 10 FD
FC0E 19 17 10 0E 0F 0E 0F 0E 10 0F 0E 0E 0E 19 18 FD02 11 0E 10 FD
FC0E 18 11 0F 0E 0E 0F 10 0E 0E 10 0F 0E 0E 19 17 FD02 11 0E 10 FD
FB0D 10 0F 0E 0E 10 11 0F 11 10 10 0E 0F 10 17 FD02 10 0E 11 FD
FB0C 11 10 0F 0E 0E 0F 10 10 0F 0F 0E 0F 0FFC02 10 0E 11 FD
FA0B 11 0F 0E 0E 0E 0F 0F 0F 0E 0E 0F 11FC02 0E 0F 11 FD
FA0B 11 10 0F 0E 0F 20 10 20 0F 0E 0F 11FD02 10 0E 10 FC
F90A 10 0F 0E 10 20 20 20 10 0F 10 11FD02 0E 0F 11 FC
F909 11 0F 0E 11 15 16 15 11 0F 10FD02 10 0E 10 FB
F909 11 0F 0E 11 1C 1C 1C 11 0F 11FD02 0E 0F 11 FB
F808 10 0F 10 11 1C 11 10 0F 11FE02 10 0E 10 FA
F807 10 0F 0F 10 11 10 0F 10FE03 10 0E 0F 11 FA
F807 11 10 0F 0E 0F 0E 0F 11FF041B 10 0E 10 11 FA
F70B 11 10 0F 0E 0F 10 11 17 1B 10 0F 11 F9
F70B 11 10 10 10 10 11 17 1B 1A 1B 10 11 F9
F60A 11 10 0F 10 11 1C 1B 1A 1A 1B 1B F9
F70B 1B 1B 10 10 10 1B 1C 1B 1A 1A 1A 1C F9
F90D 1B 1B 1A 1A 1B 1B 1B 1A 1B 1A 1A 1A 1B 1C F9
FA0D 1B 1A 1A 1A 1A 1A 1A 1A 1A 1A 1A 1A 1B 1C F8
FB0E 1B 1A 1A 1A 1A 1A 1A 1A 1A 1A 1A 1A 1A 1B 1C F8
FC0E 1B 1A 1A 1A 1B 1A 1A 1A 1A 1A 1A 1A 1A 1B 1C F7
FC0E 1B 1A 1A 1B 1C 1B 1A 1A 1A 1A 1A 1A 1B 1B 1C F7
FD0F 10 10 1B 1B 1C 1B 1B 1A 1A 1A 1A 1A 1A 1B 1B 1C F7
FD0F 10 0F 10 1C 1C 1B 1A 1A 1A 1A 1A 1A 1A 1B 1B 1C F7
FE03 10 0E 10 11FF0A1C 1B 1A 1A 1A 1A 1A 1A 1A 1B 1C F6
FE02 10 0F 11 FE0A1C 1B 1A 1A 1A 1A 1A 1A 1A 1B 1C F6
FF03 10 0E 10 11 FE0A1C 1B 1A 1A 1A 1A 1A 1A 1A 1B 1C F6
FF02 10 0F 11 FD0A 1C 1B 1A 1A 1A 1A 1A 1A 1A 1B 1C F6
FF02 10 10 11 FD0A 1C 1B 1A 1A 1A 1A 1A 1A 1A 1B 1C F6
02 10 0F 10 FC0A 1C 1B 1A 1A 1A 1A 1A 1A 1A 1B 1C F6
02 10 0E 11 FC0A 1C 1B 1A 1A 1A 1A 1A 1A 1A 1B 1C F6
02 10 0E 11 FC0A 1C 1B 1A 1A 1A 1A 1A 1A 1A 1B 1C F6
02 10 0E 11 FC0A 1C 1B 1A 1A 1A 1A 1A 1A 1A 1B 1C F6
02 10 0E 11 FD0B1C 1B 1A 1A 1A 1A 1A 1A 1A 1A 1B 1C F6
02 10 0F 11 FD0B1C 1B 1A 1A 1A 1A 1A 1A 1A 1A 1B 1C F6
02 10 10 11 FD0B1C 1B 1A 1A 1A 1A 1A 1A 1A 1A 1B 1C F6
03 10 0F 0F 10 FE0B1C 1B 1A 1A 1A 1A 1A 1A 1A 1A 1B 1C F6
04 11 0E 10 0F 10FF0B1C 1B 1B 1A 1A 1A 1A 1A 1A 1B 1B 1C F6
03 11 0E 0F 11 FE0B1C 1C 1C 1B 1B 1B 1B 1B 1B 1C 1C 1C F6
03 11 0F 0E 10 FE0B22 22 22 21 21 21 21 21 21 21 22 22 F6
FF02 11 11 11 FE0B22 21 21 20 20 20 20 20 20 20 21 22 F6
FA0B 22 21 20 20 20 20 20 20 20 20 21 22 F6
FA0B 22 21 20 20 20 21 20 20 20 20 21 22 F6
FA0B 22 21 20 20 21 22 21 20 20 20 21 22 F6
FA0B 22 21 20 20 21 22 22 21 20 20 21 22 F6
FA0B 22 21 21 21 21 22 22 21 21 21 21 22 F6
F909 11 10 0F 10 11 11 10 0F 10 11 F5
F909 11 0F 0E 0F 11 11 0F 0E 0F 11 F5
F909 11 0F 0E 0F 11 11 0F 0E 0F 11 F5
F909 11 0F 0E 0F 11 11 0F 0E 0F 11 F5
F909 11 0F 0E 0F 11 11 0F 0E 0F 11 F5
F909 11 10 0E 0F 11 11 0F 0E 10 11 F5
F807 11 0E 0F 11 11 0F 0E 11 F4
F807 11 0E 0F 11 11 0F 0E 11 F4
F807 11 0E 0F 11 11 0F 0E 11 F4
F807 11 0E 0F 11 11 0F 0E 11 F4
F807 11 0E 10 11 11 10 0E 11 F4
F802 16 16 16 FE02 16 16 16 F4
F802 16 15 16 FE02 16 15 16 F4
F802 16 15 16 FE02 16 15 16 F4
F802 16 15 16 FE02 16 15 16 F4
F807 1C 1C 1C 1C 1C 1C 1C 1C F4
FA0B 1C 1B 1A 1B 1B 1C 1C 1B 1B 1A 1B 1C F6
FB0D 1C 1B 1A 1B 1B 1C 1C 1C 1C 1B 1B 1A 1B 1C F7
FB04 1C 1C 1C 1C 1C FC04 1C 1C 1C 1C 1C F7
</pre><code>

Some current BETA demo code is below. Fully functional.
<code><pre>//
// .VNM/.000 Image Extractor - by Napalm
// BETA - Please do not use this in production mods
//
// License: Creative Commons Attribution-Share Alike 2.0 UK: England & Wales
// http://creativecommons.org/licenses/by-sa/2.0/uk/
//
// If you use this all or part of my code please credit me as the license states.
//
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include <pshpack2.h>
typedef struct _BITMAPFILEHDR {
unsigned short type;
unsigned long size;
unsigned short reserved1;
unsigned short reserved2;
unsigned long offset;
} BITMAPFILEHDR;

typedef struct _BITMAPINFOHDR {
unsigned long size;
signed long width;
signed long height;
unsigned short planes;
unsigned short bitcount;
unsigned long compression;
unsigned long image_size;
signed long x_per_meter;
signed long y_per_meter;
unsigned long colors_used;
unsigned long colors_important;
} BITMAPINFOHDR;
#include <poppack.h>

typedef struct _VNMSPRITE {
unsigned long offset; // to bitmap/frame data
unsigned long type; // 0 = Bitmap, 1 = Sprite
signed long width;
signed long height;
signed long x;
signed long y;
} VNMSPRITE;

typedef struct _VNMHEADER {
unsigned long signature; // 0x564E4D1A 'VNM\x1A' // 1.10 version?
unsigned long zero; // 0 ? start of file? always zero?
unsigned long size; // 324764 ? size of file
unsigned long paletteoffset;
unsigned long offset1; // fixed 256 long array of something?
unsigned long offset2; // fixed 256 long array of something?
unsigned long spriteoffset; //
unsigned long palettestart; // 10 start palette index?
unsigned long palettesize; // 236 number of palette entries?
signed long spritecount; // 212 number of sprite index?
} VNMHEADER;

void extractpalette(unsigned long *palette, unsigned char *data,
unsigned long start, unsigned long size)
{
unsigned char buffer[4];
unsigned long index;

buffer[3] = 0;
memset(palette, 0, sizeof(unsigned long) * 256);
for(index = start; index < (start + size); index++){
buffer[0] = (data[2] << 2);
buffer[1] = (data[1] << 2);
buffer[2] = (data[0] << 2);
data += 3;
palette[index] = *(unsigned long *)buffer;
}
}

void extractbitmap(FILE *bmp, unsigned char *buffer,
VNMSPRITE *spr, BITMAPINFOHDR *bmpinfo, long rounding)
{
unsigned char *line = (buffer + spr->offset + bmpinfo->image_size);
char zerobuffer[4] = { 0 };

while(line > buffer + spr->offset){
line -= spr->width;
fwrite(line, 1, spr->width, bmp);
if(rounding)
fwrite(zerobuffer, 1, rounding, bmp);
}
}

void extractsprite(FILE *bmp, unsigned char *buffer,
VNMSPRITE *spr, BITMAPINFOHDR *bmpinfo, long rounding, int transparent)
{
unsigned long *index = (unsigned long *)(buffer + spr->offset);
unsigned char *row;
char zerobuffer[4] = { 0 };
int y, j, pixel, count, width, escape;

escape = (0x100 - spr->width);
for(y = (spr->height - 1); y >= 0; y--){
row = (buffer + index[y]);
j = width = spr->width;
while(j > 0){
pixel = *row++;
if(pixel >= escape){
count = (0x100 - pixel);
pixel = transparent;
row++; // whats this byte for?
while(count-- && j--)
fputc(pixel, bmp);
}else if(j == width && pixel < escape){
width++;
}else{
fputc(pixel, bmp);
j--;
}
}
if(rounding)
fwrite(zerobuffer, 1, rounding, bmp);
}
}

void initbmpheaders(BITMAPFILEHDR *filehdr, BITMAPINFOHDR *infohdr)
{
memset(filehdr, 0, sizeof(BITMAPFILEHDR));
memset(infohdr, 0, sizeof(BITMAPINFOHDR));
infohdr->size = sizeof(BITMAPINFOHDR);
infohdr->planes = 1;
infohdr->bitcount = 8; // BI_8_BIT
infohdr->compression = 0; // BI_RGB
filehdr->type = 'MB';
filehdr->offset = sizeof(BITMAPFILEHDR) +
infohdr->size + (sizeof(unsigned long) * 256);
}

int main(int argc, char *argv[])
{
unsigned long palette[256], *index;
unsigned char *buffer;
BITMAPFILEHDR bmpfile;
BITMAPINFOHDR bmpinfo;
VNMHEADER *hdr;
VNMSPRITE *spr;
FILE *vnm, *bmp;
long size, i, rounding;
char name[32];

vnm = fopen(argv[1], "rb");
if(!vnm){
perror(argv[1]);
exit(1);
}
fseek(vnm, 0, SEEK_END);
size = ftell(vnm);
fseek(vnm, 0, SEEK_SET);

buffer = (unsigned char *)malloc(size);
if(!buffer){
perror("malloc filesize");
exit(1);
}
fread(buffer, 1, size, vnm);
fclose(vnm);

hdr = (VNMHEADER *)buffer;
if(hdr->signature != 0x564E4D1A && hdr->signature != 0x1A4D4E56){
perror("invalid vnm signature");
free(buffer);
exit(1);
}

extractpalette(palette, buffer + hdr->paletteoffset, hdr->palettestart, hdr->palettesize);
initbmpheaders(&bmpfile, &bmpinfo);

index = (unsigned long *)(buffer + hdr->spriteoffset);
for(i = 0; i < hdr->spritecount; i++){ //
spr = (VNMSPRITE *)(buffer + index[i]);
printf("spr %#3d: %c(%#3d,%#3d)-(%#3d,%#3d)\n", i, ((spr->type) ? 'S':'B'),
spr->x, spr->y, spr->width, spr->height);

rounding = (spr->width % 4);
if(rounding > 0) rounding = (4 - rounding);
bmpinfo.width = spr->width;
bmpinfo.height = spr->height;
bmpinfo.image_size = ((spr->width + rounding) * spr->height);
bmpfile.size = (bmpfile.offset + bmpinfo.image_size);

sprintf(name, "output\\%03d.bmp", i);
bmp = fopen(name, "wb");
if(!bmp){
sprintf(name, "error opening %03d.bmp", i);
perror(name);
exit(1);
}

fwrite(&bmpfile, sizeof(bmpfile), 1, bmp);
fwrite(&bmpinfo, sizeof(bmpinfo), 1, bmp);
fwrite(palette, sizeof(palette), 1, bmp);

if(spr->type)
extractsprite(bmp, buffer, spr, &bmpinfo, rounding, 189); // 187
else
extractbitmap(bmp, buffer, spr, &bmpinfo, rounding);

fclose(bmp);
}

free(buffer);
return 0;
}
</pre></code>

== Credits ==
This file format was reverse engineered by [[User:Napalm|Napalm]].

[[Category:File Formats]]
[[Category:Graphics Files]]
[[Category:Beavis and Butthead In Virtual Stupidity]]

Viacom New Media Graphics File Format

2010-02-09T23:03:07Z

Napalm: Added Sprite Extraction Example

File:Viacom New Media Graphics File Format.png

2010-02-09T22:58:50Z

Napalm: Result of raw extraction.

Result of raw extraction.

Viacom New Media Graphics File Format

2010-02-09T22:40:50Z

Napalm: Updated Code

Beavis and Butthead In Virtual Stupidity

2010-02-09T22:39:50Z

Napalm:

{{Stub}}
{{GamePage|Beavis and Butthead In Virtual Stupidity}}

'''Beavis and Butthead in Virtual Stupidity''' is an adventure game and four mini-games. It was developed and published by Viacom New Media. It was originally released on the PC on the 31st August 1995. It featured vocals from the original series' cast of voice actors, including Mike Judge the original shows creator.

== Mini Games ==
* Hock-A-Loogie
* Court Chaos
* Bug Justice
* Air Guitar

== File Formats ==
The main game and the mini-games both use the following formats. Game sound is stored in the standard AIFF File Format. Game Video Sequences are stored in the standard AVI File Format. Game graphics are stored in Viacoms' Custom Format (.VNM Viacom New Media).
* [http://en.wikipedia.org/wiki/Audio_Interchange_File_Format AIFF Audio Interchange File Format on Wikipedia]
* [http://en.wikipedia.org/wiki/Audio_Video_Interleave Audio Video Interleave File Format on Wikipedia]
* [[Viacom New Media Graphics File Format]]

== Notes ==
The VNM Graphics File Format was reverse engineered by [[User:Napalm|Napalm]].

== Related Links ==
* [http://www.mobygames.com/game/mtvs-beavis-and-butt-head-in-virtual-stupidity Beavis and Butthead in Virtual Stupidity on MobyGames]
* [http://en.wikipedia.org/wiki/Beavis_and_Butt-head_in_Virtual_Stupidity Beavis and Butthead in Virtual Stupidity on Wikipedia]

Viacom New Media Graphics File Format

2010-02-09T22:31:30Z

Napalm:

Viacom New Media Graphics File Format

2010-02-09T22:29:39Z

Napalm: Created page with 'Beavis_and_Butthead_In_Virtual_Stupidity stores its graphics externally in VNM files. This information here is preliminary and needs verification and is subject to change. …'

[[Beavis_and_Butthead_In_Virtual_Stupidity]] stores its graphics externally in VNM files. This information here is preliminary and needs verification and is subject to change.

VNM_HEADER: VNM File Header
{|class="wikitable"
!Data Type!!Description
|-
|UINT32LE Signature||File Signature (should match 0x564E4D1A aka "VNM\x1A")
|-
|UINT32LE Flags||Possibly file information flags.
|-
|UINT32LE Size||Size Of Data
|-
|UINT32LE OffsetPal|| Offset to Pal Data.
|-
|UINT32LE OffsetUnknown1||Offset to currently Unknown Data.
|-
|UINT32LE OffsetUnknown2||Offset to currently Unknown Data.
|-
|UINT32LE OffsetImages||Offset to VNM_IMAGE array.
|-
|UINT32LE PalIndexFirst||First Valid Index in Colour Palette.
|-
|UINT32LE PalIndexSize||Count of Palette Indexes stored in file at OffsetPal.
|-
|UINT32LE ImageCount||Count of Images stored in file at OffsetImages.
|-
|}

VNM_IMAGE: VNM Image Header
{|class="wikitable"
!Data Type!!Description
|-
|UINT32LE Offset||Offset in file to where raw image data starts.
|-
|UINT32LE Type||0 = Bitmap, 1 = Sprite
|-
|UINT32LE Width||Width of this Image
|-
|UINT32LE Height||Height of this Image.
|-
|UINT32LE XPos||XPos of this Image.
|-
|UINT32LE YPos||YPos of this Image.
|-
|}

== Credits ==
This file format was reverse engineered by --[[User:Napalm|Napalm]] 22:29, 9 February 2010 (GMT).

[[Category:File Formats]]
[[Category:Graphics Files]]

Beavis and Butthead In Virtual Stupidity

2010-02-09T22:01:55Z

Napalm: Final Update

{{Stub}}
{{GamePage|Beavis and Butthead In Virtual Stupidity}}

'''Beavis and Butthead in Virtual Stupidity''' is an adventure game and four mini-games. It was developed and published by Viacom New Media. It was originally released on the PC on the 31st August 1995. It featured vocals from the original series' cast of voice actors, including Mike Judge the original shows creator.

== Mini Games ==
* Hock-A-Loogie
* Court Chaos
* Bug Justice
* Air Guitar

== File Formats ==
The main game and the mini-games both use the following formats. Game sound is stored in the standard AIFF File Format. Game Video Sequences are stored in the standard AVI File Format. Game graphics are stored in Viacoms' Custom Format (.VNM Viacom New Media).
* [http://en.wikipedia.org/wiki/Audio_Interchange_File_Format AIFF Audio Interchange File Format on Wikipedia]
* [http://en.wikipedia.org/wiki/Audio_Video_Interleave Audio Video Interleave File Format on Wikipedia]
* [[Viacom New Media Graphics File Format]]

== Notes ==
The VNM Graphics File Format was reverse engineered by Napalm.

== Related Links ==
* [http://www.mobygames.com/game/mtvs-beavis-and-butt-head-in-virtual-stupidity Beavis and Butthead in Virtual Stupidity on MobyGames]
* [http://en.wikipedia.org/wiki/Beavis_and_Butt-head_in_Virtual_Stupidity Beavis and Butthead in Virtual Stupidity on Wikipedia]

Beavis and Butthead In Virtual Stupidity

2010-02-09T21:35:45Z

Napalm:

File:Beavis and Butthead In Virtual Stupidity.png

2010-02-09T21:34:45Z

Napalm:

Beavis and Butthead In Virtual Stupidity

2010-02-09T21:33:14Z

Napalm: Created first page