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170 lines
5.2 KiB
Plaintext
170 lines
5.2 KiB
Plaintext
------- April 1999 -------
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?? Wrote load_png wrapper
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??+1 Cleaned up a bit, tried getting grayscale and
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auto-MagicPink conversion working.
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9 Now can read gamma from environment variable.
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Changed default gamma to 2.2.
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13 Added save_png, using pieces from allpng.c
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15 Fixed stupid bug I created in save_hicolour.
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Added copyright notice.
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Now uses packfile routines.
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Added #ifdef __cplusplus hack.
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Released: version 0.1.
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------- December 1999 -------
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22 Updated to work with Allegro 3.9.xx.
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Fixed alpha channel support.
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Added alpha.c
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test.c renamed to example.c
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Released: version 0.2
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------- January 1999 -------
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3 Applied fix for < 8 bpp images (thanks to Dave Dribin)
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Released: version 0.3
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------- October 2000 -------
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12 Updated const-correctness in accordance with Allegro.
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Released: version 0.4
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------- April 2001 -------
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11 "Fixed" RGB/BGR problem with loading RGBA images.
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Use GFX_AUTODETECT in examples (GFX_SAFE changed in Allegro).
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Released: version 0.5
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------- July 2001 -------
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13 Reverted to 0.4 codebase, as 0.5 was really broken (oops).
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Added "depth" argument to examples.
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Commented out the BGR flipping code, which was incorrect I think
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anyway. Someone with a BGR card should check it out.
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Released: version 0.6
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------- January 2002 -------
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03 allegro/aintern.h -> allegro/internal/aintern.h (Allegro 4.0)
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Released: version 0.7
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------- February 2002 -------
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25 Fixed a problem with passing NULL for pal to load_png.
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Released: version 0.8
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------- March 2002 -------
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30 Tentative fixes for loading/saving RGBA images.
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Thanks to Chris Graham for reporting the problem.
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Minor changes to examples and makefile.
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------- May 2002 -------
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06 Added shared library (unix) and install support into makefiles,
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and cleaned them up. Thanks to Robbert Haarman for the start.
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Minor changes for -W warnings.
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07 Dave Dribin fixed a problem that surfaced with some buggy versions
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of libpng (1.0.13, 1.2.2).
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Moved the thanks section into a separate document.
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08 Fixed a puny mistake in the makefile.
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12 Released: version 0.9
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16 Tentative fixes for sometimes-problems loading RGB images.
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19 Released: version 0.10
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------- September 2002 -------
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03 Dave Dribin fixed two problems with images with alpha channels.
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04 Released: version 0.11
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------- April 2003 -------
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27 Mostly incorporated Ceniza's changes (load_memory_png and loading
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from datafile support, plus an example).
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28 Reworked those changes a little.
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------- May 2003 -------
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02 Miscellaneous changes; put examples into separate directory
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(now that we have three!).
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04 Signal errors on read/write failure.
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Released: version 1.0.
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20 Calling load_png with NULL for palette argument was not converting
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paletted images to high/truecolour properly. Fixed. Thanks to
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Lothar May for pointing it out.
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Released: version 1.1.
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------- October 2003 -------
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13 Changed the method of scaling of palette values from 6 bits
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to 8 bits. Instead of just multiplying by 4, now we use
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_rgb_scale_6[] so that e.g. 0 -> 0, but 63 -> 255.
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Thanks Nicolas Lemal for the idea.
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Released: version 1.2.
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16 MSVC doesn't like pointer arithmetic on void*'s, pointed out by
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Chris Condrat.
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Re-released: version 1.2 (I forgot to update version constants anyway).
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------- April 2004 -------
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26 Jon Rafkind suggested to use _getpixel*/_putpixel* in loader to
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speed up loading of large images.
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Split up the code into three files. This prevents the linker pulling
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in unused code, e.g. many people don't need save_png.
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28 It turns out that loadpng's origin (example.c from libpng docs) was in
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the public domain, so now loadpng is in the public domain as well.
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Released: version 1.3.
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------- October 2004 -------
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09 Made save_png handle non-memory bitmaps as well.
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10 Fixed some bugs with load_png(). Now everything in PngSuite loads
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properly, and with correct gamma correction, except for:
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- bKGD chunks (solid background colours) are not respected.
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I chose this in the past, but I wonder if I should change it?
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- pHYs chunks (physical dimensions) are not respected.
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(BTW, this was all tested with Valgrind - no errors)
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_png_screen_gamma can now be 0.0 to disable gamma correction, i.e. if
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you don't know the screen gamma, it might be best not to guess.
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Got rid of inefficient BGR-handling hack and did things properly.
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New example: browse.c (for mass testing, e.g. PngSuite)
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Released: version 1.4pre1.
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------- August 2005 -------
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18 Emmanuel Anne made _png_compression_level actually work.
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Released: version 1.4.
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------- April 2006 -------
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9 Fix an endianness on big-endian machines, from Siarhei Siamashka.
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I haven't tested it.
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Released: version 1.5.
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------- January 2012 -------
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7 David Capello: Updated for libpng 1.5.7
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