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[libpng16] Fixed some nits in contrib/arm-neon/README and comments in

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contrib/examples/*.c
This commit is contained in:
Glenn Randers-Pehrson
2014-02-23 10:58:07 -06:00
parent 1301356273
commit 079a724833
3 changed files with 8 additions and 8 deletions
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6
contrib/arm-neon/README
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@@ -7,7 +7,7 @@ operating system support. (The information is not available in user mode.)
HOW TO USE THIS HOW TO USE THIS
--------------- ---------------
This directory contains C code fragments which can be included in arm/arm_init.c This directory contains C code fragments that can be included in arm/arm_init.c
by setting the macro PNG_ARM_NEON_FILE to the file name in "" or <> at build by setting the macro PNG_ARM_NEON_FILE to the file name in "" or <> at build
time. This setting is not recorded in pnglibconf.h and can be changed simply by time. This setting is not recorded in pnglibconf.h and can be changed simply by
rebuilding arm/arm_init.o with the required macro definition. rebuilding arm/arm_init.o with the required macro definition.
@@ -66,8 +66,8 @@ You may send contributions of new implementations to
png-mng-implement@sourceforge.net. Please write code in strict C90 C where png-mng-implement@sourceforge.net. Please write code in strict C90 C where
possible. Obviously OS dependencies are to be expected. If you submit code you possible. Obviously OS dependencies are to be expected. If you submit code you
must have the authors permission and it must have a license that is acceptable must have the authors permission and it must have a license that is acceptable
to the current maintainer; in particular that license must permit to the current maintainer; in particular that license must permit modification
redistribution. and redistribution.
Please try to make the contribution a single file and give the file a clear and Please try to make the contribution a single file and give the file a clear and
unambiguous name that identifies the target OS. If multiple files really are unambiguous name that identifies the target OS. If multiple files really are

4
contrib/examples/iccfrompng.c
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@@ -6,9 +6,9 @@
* United States. * United States.
* *
* Extract any icc profiles found in the given PNG files. This is a simple * Extract any icc profiles found in the given PNG files. This is a simple
* example of a program which extracts information from the header of a PNG file * example of a program that extracts information from the header of a PNG file
* without processing the image. Notice that some header information may occur * without processing the image. Notice that some header information may occur
* after the image data, textual data and comments are an example; the approach * after the image data. Textual data and comments are an example; the approach
* in this file won't work reliably for such data because it only looks for the * in this file won't work reliably for such data because it only looks for the
* information in the section of the file that preceeds the image data. * information in the section of the file that preceeds the image data.
* *

6
contrib/examples/pngpixel.c
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@@ -8,7 +8,7 @@
* Read a single pixel value from a PNG file. * Read a single pixel value from a PNG file.
* *
* This code illustrates basic 'by-row' reading of a PNG file using libpng. * This code illustrates basic 'by-row' reading of a PNG file using libpng.
* Rows are read until a particular pixel is found, the value of this pixel is * Rows are read until a particular pixel is found; the value of this pixel is
* then printed on stdout. * then printed on stdout.
* *
* The code illustrates how to do this on interlaced as well as non-interlaced * The code illustrates how to do this on interlaced as well as non-interlaced
@@ -56,7 +56,7 @@ component(png_const_bytep row, png_uint_32 x, unsigned int c,
case 8: return row[0]; case 8: return row[0];
case 16: return (row[0] << 8) + row[1]; case 16: return (row[0] << 8) + row[1];
default: default:
/* This should never happen, it indicates a bug in this program or in /* This should never happen; it indicates a bug in this program or in
* libpng itself: * libpng itself:
*/ */
fprintf(stderr, "pngpixel: invalid bit depth %u\n", bit_depth); fprintf(stderr, "pngpixel: invalid bit depth %u\n", bit_depth);
@@ -132,7 +132,7 @@ print_pixel(png_structp png_ptr, png_infop info_ptr, png_const_bytep row,
return; return;
default: default:
png_error(png_ptr, "invalid color type"); png_error(png_ptr, "pngpixel: invalid color type");
} }
} }