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d9e9c6d3a0
Following up on commit 7c67f70da1:
Replace 22 deprecated pointer typedefs with their underlying types.
The typedefs replaced are:
1. Core structure types:
- png_structp, png_structrp, png_structpp and const variants
- png_infop, png_inforp, png_infopp and const variants
2. Utility structure types:
- png_row_infop, png_row_infopp
- png_imagep, png_imagepp
- png_controlp
3. Color structure types:
- png_colorp, png_colorpp and const variants
- png_color_8p, png_color_8pp and const variants
- png_color_16p, png_color_16pp and const variants
4. Text and time structure types:
- png_textp, png_textpp and const variants
- png_timep, png_timepp and const variants
5. Chunk structure types:
- png_unknown_chunkp, png_unknown_chunkpp and const variants
- png_sPLT_tp, png_sPLT_tpp and const variants
- png_sPLT_entryp, png_sPLT_entrypp and const variants
6. Internal types:
- png_compression_bufferp
- png_dsortp, png_dsortpp
Remove all remaining uses of spurious PNG_RESTRICT qualifiers.
Non-aliasing has already been guaranteed by the type-based aliasing
rules combined with the libpng usage pattern of a single pointer per
type.
Update the user manual accordingly.
This completes the systematic replacement of deprecated pointer
typedefs across the entire libpng codebase. The typedef declarations
remain in png.h for backward compatibility, marked as deprecated.
Reviewed-by: Chris Blume <ProgramMax@gmail.com>
Signed-off-by: Cosmin Truta <ctruta@gmail.com>
57 lines
1.2 KiB
C
57 lines
1.2 KiB
C
/* contrib/powerpc-vsx/linux.c
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*
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* Copyright (c) 2017 Glenn Randers-Pehrson
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* Written by Vadim Barkov, 2017.
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*
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* This code is released under the libpng license.
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* For conditions of distribution and use, see the disclaimer
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* and license in png.h
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*
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* STATUS: TESTED
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* BUG REPORTS: png-mng-implement@sourceforge.net
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*
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* png_have_vsx implemented for Linux by reading the widely available
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* pseudo-file /proc/cpuinfo.
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*
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* This code is strict ANSI-C and is probably moderately portable; it does
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* however use <stdio.h> and it assumes that /proc/cpuinfo is never localized.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include "png.h"
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#ifndef MAXLINE
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# define MAXLINE 1024
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#endif
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static int
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png_have_vsx(png_struct *png_ptr)
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{
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FILE *f;
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const char *string = "altivec supported";
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char input[MAXLINE];
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char *token = NULL;
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PNG_UNUSED(png_ptr)
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f = fopen("/proc/cpuinfo", "r");
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if (f != NULL)
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{
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memset(input,0,MAXLINE);
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while(fgets(input,MAXLINE,f) != NULL)
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{
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token = strstr(input,string);
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if(token != NULL)
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return 1;
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}
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}
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#ifdef PNG_WARNINGS_SUPPORTED
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else
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png_warning(png_ptr, "/proc/cpuinfo open failed");
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#endif
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return 0;
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}
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