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Save color palette in RGB .ase files (fix #487)

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This commit is contained in:
David Capello 2014-09-17 10:08:19 -03:00
parent a609f121fa
commit c3d36d3598
2 changed files with 17 additions and 25 deletions
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9
docs/files/ase.txt
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@ -1,5 +1,5 @@
ASE Files (.ASE) Format description
Copyright (C) 2001-2013 by David Capello
Copyright (C) 2001-2014 by David Capello
----------------------------------------------------------------------
1. References
@ -39,10 +39,9 @@ PIXEL Pixel format:
The format is much like FLI/FLC files, but with different magic number
and differents chunks. Also, the color depth can be 8, 16 or 32 for
Indexed, Grayscale and RGB respectively, and the images are more easy
to read (there aren't differences with old frames). The palette isn't
included for color depths more than 8, but when the sprite is 8 bpp,
the palette is in a FLI color chunk (it could be type=11 or type=4).
See fli.txt for details.
to read (there aren't differences with old frames). Color palettes
are in FLI color chunks (it could be type=11 or type=4). For color
depths more than 8bpp, palettes are optional. See fli.txt for details.
To read the sprite, just do this:
* Read the ASE header (section 3)

33
src/app/file/ase_format.cpp
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@ -1,5 +1,5 @@
/* Aseprite
* Copyright (C) 2001-2013 David Capello
* Copyright (C) 2001-2014 David Capello
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
@ -211,25 +211,19 @@ bool AseFormat::onLoad(FileOp* fop)
/* only for 8 bpp images */
case ASE_FILE_CHUNK_FLI_COLOR:
case ASE_FILE_CHUNK_FLI_COLOR2:
/* fop_error(fop, "Color chunk\n"); */
case ASE_FILE_CHUNK_FLI_COLOR2: {
Palette* prev_pal = sprite->getPalette(frame);
Palette* pal =
chunk_type == ASE_FILE_CHUNK_FLI_COLOR ?
ase_file_read_color_chunk(f, sprite, frame):
ase_file_read_color2_chunk(f, sprite, frame);
if (sprite->pixelFormat() == IMAGE_INDEXED) {
Palette* prev_pal = sprite->getPalette(frame);
Palette* pal =
chunk_type == ASE_FILE_CHUNK_FLI_COLOR ?
ase_file_read_color_chunk(f, sprite, frame):
ase_file_read_color2_chunk(f, sprite, frame);
if (prev_pal->countDiff(pal, NULL, NULL) > 0)
sprite->setPalette(pal, true);
if (prev_pal->countDiff(pal, NULL, NULL) > 0) {
sprite->setPalette(pal, true);
}
delete pal;
}
else
fop_error(fop, "Warning: was found a color chunk in non-8bpp file\n");
delete pal;
break;
}
case ASE_FILE_CHUNK_LAYER: {
/* fop_error(fop, "Layer chunk\n"); */
@ -320,9 +314,8 @@ bool AseFormat::onSave(FileOp* fop)
// Frame duration
frame_header.duration = sprite->getFrameDuration(frame);
// The sprite is indexed and the palette changes? (or is the first frame)
if (sprite->pixelFormat() == IMAGE_INDEXED &&
(frame == 0 ||
// is the first frame or did the palette change?
if ((frame == 0 ||
sprite->getPalette(frame.previous())->countDiff(sprite->getPalette(frame), NULL, NULL) > 0)) {
// Write the color chunk
ase_file_write_color2_chunk(f, &frame_header, sprite->getPalette(frame));