IMP sprites and RLE algorithm

[Boaster]

Well, I'm a little stumped as to what I need to do to convert from one thing to another.

I'm right now just trying to turn EALDFa.imp into a BMP file.

I do the following in a command window:

D:\tools\sau.exe D:/imp/test/ealdfa.imp D:/imp/test/ealdfa.bmp
Processing: D:/IMP/test/ealdfa.imp
Can't convert <imp> to <bmp>

This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.

I'll need some instructions on what to do in this example.

Basically trying to convert IMP to a BMP and will then convert BMP into IMP.

[orzie]

Try converting to PCX or TGA instead. Or any other image format which existed at that time.

[Boaster]

Nov 27, 2013 7:24:10 GMT -6 orzie said:

Try converting to PCX or TGA instead. Or any other image format which existed at that time.

Same story for PCQ, GIF, etc. Doesn't change.

[orzie]

If you will have time and some other games installed, perhaps you could try this exe on Diablo 2 files or whatever, and check if it EVER works.


I cannot seem to ever launch this program, my OS is winXP SP3, and I believe this exe is compiled for Windows 7.

[Boaster]

Nov 27, 2013 21:34:25 GMT -6 orzie said:

If you will have time and some other games installed, perhaps you could try this exe on Diablo 2 files or whatever, and check if it EVER works.


I cannot seem to ever launch this program, my OS is winXP SP3, and I believe this exe is compiled for Windows 7.

I dont think its going to matter if it wont let me convert a BMP to PCX.

[orzie]

Perhaps we are doing something wrong, probably in syntax. I will play with this program today.

[halicor]

C:\Users\Compolt>C:\Users\Compolt\Downloads\4_sau-1.1\sau-1.1\sau divinity=C:\Users\Compolt\Downloads\4_sau-1.1\CPackedi.0c tga=output.tga

Processing: C:\Users\Compolt\Downloads\4_sau-1.1\CPackedi.0c

Cant convert <divinity> to <tga>

I don't get what I could have been doing wrong. Isn't this the right way to apply the synthax? Pls clarify D:

[Frodo Baggins]

I am intrigued by the work with sprites done by youtuber Angelica J. Trevino. Please check out her work on her YouTube videos where she shows how to make and implement new sprites and animations such as her mermaid!

[kazumasatoudesu]

Aug 15, 2011 17:54:52 GMT -6 snv said:

To whom it may concern, here is the structure of IMP files and decoding algorithm (variation of ILBM RLE). Have a nice day. --- SNV


IMP_File {
u2 Type; // 8=uncompressed, 9=RLE
u2 Unknown1;
u2 Width; // virtual Width
u2 Height; // virtual Height
u4 PaletteOffset;

u4 Unknown2; // checksum or id?
u4 Unknown3;
u4 Unknown4;
u2 Unknown5;

u2 NumSequences;
u4 SequencesOffset;

//Sequence Sequences[NumSequences];
// Sequence represents specific animation (like movement or spellcasting),
// together with facings

//Facing Facings[]; // directions, sprite can face (some are mirrored)
//Facing Frames[]; // frame headers

//u1 Palette[256*4]; // RGBA palette:
// index 0 used for transparency,
// index 1 is shadow
// index 0xff is RLE special value

//Data[] // all frames compressed or uncompressed data

// hotspot (selection) at the end of the file
//u1 HotSpot[];
}


Sequence {
u4 Unknown1;
u4 Unknown2;
u1 Unknown3;
u2 Unknown4;
u1 Size; // length of sequence
u4 Offset; // offset of facing groups (directions)
}

// Facings go clockwise
Facing {
u2 Unknown1;
u2 Size;
u4 Offset;
}

Frame {
u1 Type; // 0=normal, 8=duplicate-back-reference
u1 Unknown1; // delay?
u2 Width;
u2 Height;
u2 Size; // compressed size, or uncompressed, if Type=8 or IMP_File->Type==9
// should be aligned to 4-bytes

u4 Unknown2; // checksum?
u4 Offset; // offset or number of duplicating frame
// Note: duplicates used for animation delay. Don't simply strip them.
}


for (L = 0; L < H->Width*H->Height; ) {
int C = (char)*I++;
if (C<0) {
C = -C;
while(C--) O[L++] = *I++;
} else {
C = C + 3;
while(C--) O[L++] = *I;
P++;
}
}

Hello, I've been searching for a way to open pzx file in zenonia 3 and found this. I'm not familiar on how and which tool to use this script, can you explain it to me? Thanks