From 7b358424ebad9349421acd533c2fa1cbf6cf3e3e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= Date: Wed, 28 Dec 2016 16:52:56 +0100 Subject: Initial import of xtrkcad version 1:4.0.2-2 --- app/help/readpng.h | 64 ++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 app/help/readpng.h (limited to 'app/help/readpng.h') diff --git a/app/help/readpng.h b/app/help/readpng.h new file mode 100644 index 0000000..31780c5 --- /dev/null +++ b/app/help/readpng.h @@ -0,0 +1,64 @@ +/*--------------------------------------------------------------------------- + + rpng - simple PNG display program readpng.h + + --------------------------------------------------------------------------- + + Copyright (c) 1998-1999 Greg Roelofs. All rights reserved. + + This software is provided "as is," without warranty of any kind, + express or implied. In no event shall the author or contributors + be held liable for any damages arising in any way from the use of + this software. + + Permission is granted to anyone to use this software for any purpose, + including commercial applications, and to alter it and redistribute + it freely, subject to the following restrictions: + + 1. Redistributions of source code must retain the above copyright + notice, disclaimer, and this list of conditions. + 2. Redistributions in binary form must reproduce the above copyright + notice, disclaimer, and this list of conditions in the documenta- + tion and/or other materials provided with the distribution. + 3. All advertising materials mentioning features or use of this + software must display the following acknowledgment: + + This product includes software developed by Greg Roelofs + and contributors for the book, "PNG: The Definitive Guide," + published by O'Reilly and Associates. + + ---------------------------------------------------------------------------*/ + +#ifndef TRUE +# define TRUE 1 +# define FALSE 0 +#endif + +#ifndef MAX +# define MAX(a,b) ((a) > (b)? (a) : (b)) +# define MIN(a,b) ((a) < (b)? (a) : (b)) +#endif + +#ifdef DEBUG +# define Trace(x) {fprintf x ; fflush(stderr); fflush(stdout);} +#else +# define Trace(x) ; +#endif + +typedef unsigned char uch; +typedef unsigned short ush; +typedef unsigned long ulg; + + +/* prototypes for public functions in readpng.c */ + +void readpng_version_info(void); + +int readpng_init(FILE *infile, long *pWidth, long *pHeight); + +int readpng_get_bgcolor(uch *bg_red, uch *bg_green, uch *bg_blue); + +uch *readpng_get_image(double display_exponent, int *pChannels, + ulg *pRowbytes); + +void readpng_cleanup(int free_image_data); -- cgit v1.2.3