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150 Commits

Author SHA1 Message Date
Thomas Bernard
c2c36849b5 Refactor of Load_BMP() + support of OS/2 BMP 2018-01-17 00:53:32 +01:00
Thomas Bernard
ee322ed437 Fix GIF save - last byte 
The last byte was not saved for sure, depending on the codesize.
Also if the codesize was big (12 bits which is the max)
in some case an additional 0 byte was store (which is harmless but
useless)

This bug only appears if the bit per code are < 8
which is possible since commit 834050c2c4cf6ed87f3192fa31f8ae13a704a5b5
 2017-12-19 17:17:02 +01:00
Thomas Bernard
834050c2c4 Optimize GIF size by using only the number of bits needed in LZW codes 
It was always storing images in 8bpp whatever the values of pixels are,
so the minimum LZW code size was 9 bits.

Now the bpp is chosen according to the maximum pixel value.

Please note that the Whole 256 color palette is still stored entirely,
so this commit doesn't change the user experience in anyway, except saving
a few bytes :)
 2017-12-19 10:00:08 +01:00
Adrien Destugues
5b6095f0bc Fix all warnings and enable -Werror 
mostly unused variables and broken indentation.
 2017-05-06 15:13:50 +02:00
Adrien Destugues
2fc6b9375c Fix loading some Atari ST IFF files 
IFF is a versatile format, and can store data in Atari ST display RAM format.
This allows to load several of our IFF test files, but the result for most
seems corrupt (either that, or the files in our testsuite are ugly).

Thanks to miniupnp for the patch!

Fixes #38.


git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@2168 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2016-11-22 20:42:15 +00:00
Adrien Destugues
8808625851 Add a "tall 3" drawing mode. 
Pixels with 3:4 aspect ratio. Why not?

Contributed by Nic Soudée (zoner/xylem). Thanks!


git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@2166 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2016-10-15 18:57:14 +00:00
Adrien Destugues
d164d1d4cc Don't free the palette, it is owned by libpng. 
Fixes #21.


git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@2118 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2015-04-24 18:24:39 +00:00
Adrien Destugues
d9f2cd2d40 Remove no-op function Palette_loaded. 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@2109 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2015-03-04 09:28:23 +00:00
Yves Rizoud
56cdbc4c10 Issue 505: Support for saving IFF/ILBM format, compatible with Deluxe Paint 3 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1993 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2012-09-15 18:05:44 +00:00
Yves Rizoud
a43c9eb31b Yet another fix for GIF loading of animations. Fixes case when Backcolor is different from Transparent color, such as this image http://i49.tinypic.com/35j08j4.gif (WIP by Hapiel) 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1987 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2012-08-11 20:38:06 +00:00
Yves Rizoud
a630a84822 Removed all usage of __attribute__((unused)), replaced by void cast which is supported both on GCC and VBCC 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1984 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2012-08-11 16:19:07 +00:00
Yves Rizoud
7613093df9 Fix issue 496: Some animated GIF images don't load well. Also fixed the handling of transparency in preview (fileselector) and loading anim GIF as a brush loads first frame. 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1969 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2012-07-12 22:27:49 +00:00
Yves Rizoud
d29bbee941 Fix an error when loading layered image that used a transparent color different from zero ,which resulted in corrupted image. Thanks iLKke! 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1947 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2012-05-05 16:01:14 +00:00
Yves Rizoud
d8bb1e1d55 Fix some mostly harmless warnings and re-generated dependencies. Now compiles with zero warnings on Linux (gcc 4.1.2) 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1945 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2012-05-03 21:32:59 +00:00
Yves Rizoud
be96447f3b Anim: Improved support of extreme durations (O included to 655.350s included); Adding frames now inherits parent's duration cleanly; Default duration now 100ms (instead of 1ms). Removed blanks in Time window and made tooltips more explicit for next/prev frame, thanks to 00ai99 for reporting. 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1931 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2012-03-13 00:21:12 +00:00
Yves Rizoud
b435ff2582 Added minimal support of ANIM format as part of the LBM loader : The first frame can be read. 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1923 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2012-03-07 19:44:37 +00:00
Yves Rizoud
a292f4e356 Fileselector : Now only previews frame 1 of animations, instead of loading everything 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1914 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2012-03-04 17:03:46 +00:00
Yves Rizoud
20055dca31 Fix loading of GIF animations that use the 'restore to BGcolor' disposal method. 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1913 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2012-03-04 16:53:40 +00:00
Yves Rizoud
e73eb2786a Animation now has correct visual display and input feedback. Loading GIF guesses it's an anim if it loops, layers otherwise : Some rare non-looping GIF anims (usaully broken) will be misunderstood as layered. Editing of anims and layers seems flawless and stable. Still requires an auto-switch to the best toolbar (anim/layers) when relevant, but you can already switch manually. 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1910 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2012-03-02 23:19:47 +00:00
Yves Rizoud
30edcddd07 Fix a color imprecision in the ILBM (IFF) loader. It has existed forever in the SDL port, though it was always better than the 6bit/channel of the DOS version. 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1872 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2011-11-16 23:01:19 +00:00
Yves Rizoud
59a20c6e3e GIF format now saves pixel ratio in the Logical Screen Descriptor if you use tall or wide pixels. I know no viewer that respects it, so the only effect is that Grafx2 automatically switches to the right scaler when you reload the file. 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1855 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2011-10-31 19:45:57 +00:00
Yves Rizoud
8fb16e7089 Re-integrated anim in trunk, fixing the 999-layer limit at the same time 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1841 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2011-10-19 23:35:56 +00:00
Adrien Destugues
6672966661 * Avoid crash when enabling mode 5 without enough layers (they are created) 
* Display error code to terminal when loading an image fails. Mainly for debugging purposes.
 * Use different error codes for different errors in ILBM loader.


git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1818 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2011-07-12 19:31:48 +00:00
Adrien Destugues
706049a2d9 Merge all changes from trunk in CPCMode5 branch. 
git-svn-id: svn://pulkomandy.tk/GrafX2/branches/cpcmode5@1809 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2011-06-19 18:30:53 +00:00
nokturnal
7184fb857f bugfix in Add_element_to_list(), there were changes in function interface, but they were not applied in function call, so this resulted in program hang when calling fileselector. 
Bugfix there was no Atari_Memory_free() declaration when __MINT_ define was declared.

git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1799 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2011-06-15 19:29:11 +00:00
Yves Rizoud
1af5ee33f1 Merge r1787 (Fix loading of BMPs with negative heights) from release (2.3) to trunk (2.4wip) 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1795 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2011-06-12 18:07:08 +00:00
Yves Rizoud
1f10338f60 Merged trunk into branches/mode5 (=update mode5 branch to latest) 
git-svn-id: svn://pulkomandy.tk/GrafX2/branches/cpcmode5@1785 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2011-04-25 15:17:18 +00:00
Franck Charlet
431484914e more work done on Mac OSX version 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1752 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2011-03-10 22:16:42 +00:00
Adrien Destugues
eae47aa0e8 * Factory : if message is longer than 24 chars, cut it instead of not doing anything 
* Fileformats : remove outdated comment in gif loader

git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1750 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2011-03-07 21:53:39 +00:00
Yves Rizoud
504f25f1e1 Fix issue 414: Incomplete loading of some GIF images 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1747 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2011-03-05 17:29:28 +00:00
Yves Rizoud
55422d160e (mode5 branch) Fix a bug in saving, including autosave every few minutes, that auto-selects the last layer to draw. 
git-svn-id: svn://pulkomandy.tk/GrafX2/branches/cpcmode5@1743 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2011-03-02 22:07:24 +00:00
Adrien Destugues
eba26aaa96 Merge trunk to the cpcmode5 branch. This gets us a more recent grafx2 with the cpcmode5 drawing. Now to make this mode optional so users can still work in regular mode :) 
git-svn-id: svn://pulkomandy.tk/GrafX2/branches/cpcmode5@1719 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2011-02-13 21:49:31 +00:00
Yves Rizoud
af857c09c9 Save and load color cycling information (and gradients, anyway) in PNG format (issue 365) 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1713 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2011-02-08 23:30:13 +00:00
Yves Rizoud
d0aaabf6b2 Merge of r1709 into trunk: Atari Falcon port 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1710 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2011-02-06 19:30:55 +00:00
Adrien Destugues
4e35de8611 Add code to save XPM files. 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1682 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2011-01-16 15:07:50 +00:00
Yves Rizoud
3797966fa7 Fix a warning 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1650 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2010-11-14 14:57:23 +00:00
Yves Rizoud
fba72c9ebd Removed struct packing everywhere, except RGB 24bit struct (and thus 768-byte palettes). This might fix some issue on Caanoo, where either the packing didn't work (and the struct had wrong size) or it worked and caused unaligned reads/writes. 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1639 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2010-10-26 22:51:07 +00:00
Yves Rizoud
82e469a11e Now save all color ranges, not only the cycling ones. Only solid ranges (1 color) are discarded. Also fixed a few harmless compilation warnings 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1619 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2010-09-16 19:28:59 +00:00
Yves Rizoud
9f47e427c7 Fix horrible crash with GIF-saving 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1601 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2010-09-01 00:06:48 +00:00
Yves Rizoud
838dd63a0c GIF format loads and saves color cycling data 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1599 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2010-08-31 22:30:04 +00:00
Yves Rizoud
c474208860 Color cycling: saved in ILBM format. 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1574 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2010-08-15 14:47:37 +00:00
Yves Rizoud
1c2ab9aa99 ILBM format : Cycling color ranges are loaded (unused so far) 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1572 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2010-08-14 19:03:55 +00:00
Yves Rizoud
1a76338e3b Fix issue 360: Many (ancient) bugs in GIF Loading: Warped palette when reading a GIF with sorted global palette, or an interlaced GIF with a local palette (in both cases, data ordered RGB RGB RGB is read RRR GGG BBB), or any GIF with a local palette (first byte of palette was chopped off, shifting everything by 1 byte). 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1520 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2010-06-22 21:29:45 +00:00
Yves Rizoud
ddc0c3448d Support for loading 1bpp GIF. At last! 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1508 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2010-06-15 19:02:43 +00:00
Yves Rizoud
b643695786 Fix issue 357: Program hangs when loading GIF images with unknown Application Extension Blocks 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1507 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2010-06-15 16:52:59 +00:00
Yves Rizoud
85e4ea9a79 Fix compatibility warnings of libpng v1.4. Hopefully maintained compatibility with older versions... please report if problems. 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1504 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2010-06-14 23:01:57 +00:00
Yves Rizoud
eb9145346f Improved the safety backups: after restore, the original filename and directory are set. It uses a GIF application extension to save the data in the files (Only used for safety backups, it won't affect the GIFs that you save) 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1467 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2010-04-27 23:21:29 +00:00
Yves Rizoud
5e972c0659 Fix crash when loading 24bit+transparency PNG images, such as http://pixeljoint.com/pixelart/51675.htm - This patch discards the transparency data in this case, because interpreting it correctly is a much bigger change: todo sometime later. 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1458 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2010-04-16 00:36:41 +00:00
Yves Rizoud
df5db73f5a Updated credits; Fix issue 309: Libpng 1.4 breaks build process 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1396 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2010-03-22 00:58:00 +00:00
Yves Rizoud
3ca5322379 Reorganized source code and directory tree. 
git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1375 416bcca6-2ee7-4201-b75f-2eb2f807beb1
 2010-03-05 02:53:19 +00:00