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Imported from libpng-1.0.6.tar

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This commit is contained in:
Glenn Randers-Pehrson
2000-03-21 05:13:06 -06:00
parent a77ef625a6
commit 520a764cd7
74 changed files with 2298 additions and 1436 deletions
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18
contrib/gregbook/writepng.c
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@@ -4,7 +4,7 @@
---------------------------------------------------------------------------
Copyright (c) 1998-1999 Greg Roelofs. All rights reserved.
Copyright (c) 1998-2000 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
@@ -30,10 +30,10 @@
---------------------------------------------------------------------------*/
#include <stdlib.h> /* for exit() prototype */
#include <stdlib.h> /* for exit() prototype */
#include "png.h" /* libpng header; includes zlib.h and setjmp.h */
#include "writepng.h" /* typedefs, common macros, public prototypes */
#include "png.h" /* libpng header; includes zlib.h and setjmp.h */
#include "writepng.h" /* typedefs, common macros, public prototypes */
/* local prototype */
@@ -42,7 +42,7 @@ static void writepng_error_handler(png_structp png_ptr, png_const_charp msg);
void writepng_version_info()
void writepng_version_info(void)
{
fprintf(stderr, " Compiled with libpng %s; using libpng %s.\n",
PNG_LIBPNG_VER_STRING, png_libpng_ver);
@@ -82,7 +82,7 @@ int writepng_init(mainprog_info *mainprog_ptr)
* but compatible error handlers must either use longjmp() themselves
* (as in this program) or exit immediately, so here we go: */
if (setjmp(png_jmp_env(mainprog_ptr))) {
if (setjmp(mainprog_ptr->jmpbuf)) {
png_destroy_write_struct(&png_ptr, &info_ptr);
return 2;
}
@@ -239,7 +239,7 @@ int writepng_encode_image(mainprog_info *mainprog_ptr)
/* as always, setjmp() must be called in every function that calls a
* PNG-writing libpng function */
if (setjmp(png_jmp_env(mainprog_ptr))) {
if (setjmp(mainprog_ptr->jmpbuf)) {
png_destroy_write_struct(&png_ptr, &info_ptr);
mainprog_ptr->png_ptr = NULL;
mainprog_ptr->info_ptr = NULL;
@@ -277,7 +277,7 @@ int writepng_encode_row(mainprog_info *mainprog_ptr) /* NON-interlaced only! */
/* as always, setjmp() must be called in every function that calls a
* PNG-writing libpng function */
if (setjmp(png_jmp_env(mainprog_ptr))) {
if (setjmp(mainprog_ptr->jmpbuf)) {
png_destroy_write_struct(&png_ptr, &info_ptr);
mainprog_ptr->png_ptr = NULL;
mainprog_ptr->info_ptr = NULL;
@@ -307,7 +307,7 @@ int writepng_encode_finish(mainprog_info *mainprog_ptr) /* NON-interlaced! */
/* as always, setjmp() must be called in every function that calls a
* PNG-writing libpng function */
if (setjmp(png_jmp_env(mainprog_ptr))) {
if (setjmp(mainprog_ptr->jmpbuf)) {
png_destroy_write_struct(&png_ptr, &info_ptr);
mainprog_ptr->png_ptr = NULL;
mainprog_ptr->info_ptr = NULL;