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Imported from libpng-0.87.tar

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Guy Schalnat
1996-01-16 01:51:56 -06:00
committed by Glenn Randers-Pehrson
parent 69b1448f19
commit 4ee97b0891
22 changed files with 1210 additions and 863 deletions
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32
pngtest.c
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@@ -1,10 +1,10 @@
/* pngtest.c - a simple test program to test libpng
/* pngtest.c - a simple test program to test libpng
libpng 1.0 beta 2 - version 0.86
libpng 1.0 beta 2 - version 0.87
For conditions of distribution and use, see copyright notice in png.h
Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
January 10, 1996
*/
Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
January 15, 1996
*/
#include <stdio.h>
#include <stdlib.h>
@@ -32,12 +32,14 @@ char inbuf[256], outbuf[256];
int main()
{
FILE *fpin, *fpout;
png_bytep row_buf;
png_bytep row_buf;
png_byte * near_row_buf;
png_uint_32 rowbytes;
png_uint_32 y;
int channels, num_pass, pass;
row_buf = (png_bytep )0;
row_buf = (png_bytep)0;
near_row_buf = (png_byte *)0;
fprintf(STDERR, "Testing libpng version %s\n", PNG_LIBPNG_VER_STRING);
@@ -73,7 +75,7 @@ int main()
}
if (setjmp(write_ptr.jmpbuf))
{
{
fprintf(STDERR, "libpng write error\n");
fclose(fpin);
fclose(fpout);
@@ -91,7 +93,7 @@ int main()
png_read_info(&read_ptr, &info_ptr);
png_write_info(&write_ptr, &info_ptr);
if ((info_ptr.color_type & 3) == 2)
if ((info_ptr.color_type & 3) == 2)
channels = 3;
else
channels = 1;
@@ -99,7 +101,8 @@ int main()
channels++;
rowbytes = ((info_ptr.width * info_ptr.bit_depth * channels + 7) >> 3);
row_buf = (png_bytep )malloc((size_t)rowbytes);
near_row_buf = (png_byte *)malloc((size_t)rowbytes);
row_buf = (png_bytep)near_row_buf;
if (!row_buf)
{
fprintf(STDERR, "no memory to allocate row buffer\n");
@@ -124,8 +127,11 @@ int main()
{
for (y = 0; y < info_ptr.height; y++)
{
png_read_rows(&read_ptr, (png_bytepp )&row_buf, (png_bytepp )0, 1);
png_write_rows(&write_ptr, (png_bytepp )&row_buf, 1);
#ifdef TESTING
fprintf(STDERR, "Processing line #%ld\n", y);
#endif
png_read_rows(&read_ptr, (png_bytepp)&row_buf, (png_bytepp)0, 1);
png_write_rows(&write_ptr, (png_bytepp)&row_buf, 1);
}
}
@@ -138,7 +144,7 @@ int main()
fclose(fpin);
fclose(fpout);
free((void *)row_buf);
free((void *)near_row_buf);
fpin = fopen(inname, "rb");