README.chromium - Issue 97690043: Update libjpeg_turbo to use clz for bitcounting on ARM

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Issue 97690043: Update libjpeg_turbo to use clz for bitcounting on ARM Base URL: http://src.chromium.org/svn/trunk/deps/third_party/libjpeg_turbo

Patch Set: Updated google.patch file Created 10 years, 10 months ago

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OLD	NEW
1 Name: libjpeg-turbo	1 Name: libjpeg-turbo

2 URL: http://sourceforge.net/projects/libjpeg-turbo/	2 URL: http://sourceforge.net/projects/libjpeg-turbo/

3 Version: 1.3.1	3 Version: 1.3.1

4 License: Custom license	4 License: Custom license

5 License File: LICENSE.txt	5 License File: LICENSE.txt

6 Security Critical: yes	6 Security Critical: yes

7	7

8 Description:	8 Description:

9 This consists of the components:	9 This consists of the components:

10 * A partial copy of libjpeg-turbo 1.3.1 (r1219);	10 * A partial copy of libjpeg-turbo 1.3.1 (r1219);

11 * Revision r1188 cherry-picked from upstream trunk into config.h;	11 * Revision r1188 cherry-picked from upstream trunk into config.h;

	12 * Revision r1220 cherry-picked from upstream trunk into jchuff.c;

12 * A build file (libjpeg.gyp), and;	13 * A build file (libjpeg.gyp), and;

13 * Patched header files used by Chromium.	14 * Patched header files used by Chromium.

14	15

15 This libjpeg-turbo can replace our libjpeg-6b without any modifications in the	16 This libjpeg-turbo can replace our libjpeg-6b without any modifications in the

16 Chromium code.	17 Chromium code.

17	18

18 Same as our copy of libjpeg-6b, this libjpeg-turbo also added a new file	19 Same as our copy of libjpeg-6b, this libjpeg-turbo also added a new file

19 jpeglibmangler.h and included it from jpeglib.h that changes the names of all	20 jpeglibmangler.h and included it from jpeglib.h that changes the names of all

20 externally visible functions to chromium_* so that we can avoid conflicts that	21 externally visible functions to chromium_* so that we can avoid conflicts that

21 arise when system libraries attempt to use our libjpeg. Also, we applied the	22 arise when system libraries attempt to use our libjpeg. Also, we applied the

22 following changes which are not merged to upstream:	23 following changes which are not merged to upstream:

23	24

24 * Added the 'private_extern' flags on Mac (or the 'hidden' flags on Linux) to	25 * Added the 'private_extern' flags on Mac (or the 'hidden' flags on Linux) to

25 all the global symbols in '.asm' files to prevent making them external ones.	26 all the global symbols in '.asm' files to prevent making them external ones.

26 * Supported motion-JPEG frames that do not have DHT markers.	27 * Supported motion-JPEG frames that do not have DHT markers.

27	28

28 The 'google.patch' file represents our changes from the original	29 The 'google.patch' file represents our changes from the original

29 libjpeg-turbo-1.2.	30 libjpeg-turbo-1.2.

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