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Imported from libpng-1.4.0beta51.tar

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This commit is contained in:
Glenn Randers-Pehrson
2009-03-21 08:15:32 -05:00
parent 6917b51660
commit 8fb550cc3e
63 changed files with 480 additions and 263 deletions
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14
example.c
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@@ -2,7 +2,7 @@
#if 0 /* in case someone actually tries to compile this */
/* example.c - an example of using libpng
* Last changed in libpng 1.4.0 [March 9, 2009]
* Last changed in libpng 1.4.0 [March 21, 2009]
* This file has been placed in the public domain by the authors.
* Maintained 1998-2009 Glenn Randers-Pehrson
* Maintained 1996, 1997 Andreas Dilger)
@@ -342,11 +342,13 @@ void read_png(FILE *fp, unsigned int sig_read) /* file is already open */
/* The easiest way to read the image: */
png_bytep row_pointers[height];
/* Clear the pointer array */
for (row = 0; row < height; row++)
row_pointers[row] = NULL;
for (row = 0; row < height; row++)
{
row_pointers[row] = png_malloc(png_ptr, png_get_rowbytes(png_ptr,
info_ptr));
}
/* Now it's time to read the image. One of these methods is REQUIRED */
#ifdef entire /* Read the entire image in one go */
@@ -597,7 +599,7 @@ void write_png(char *file_name /* , ... other image information ... */)
*/
if (setjmp(png_jmpbuf(png_ptr)))
{
/* If we get here, we had a problem reading the file */
/* If we get here, we had a problem writing the file */
fclose(fp);
png_destroy_write_struct(&png_ptr, &info_ptr);
return (ERROR);
@@ -692,7 +694,7 @@ void write_png(char *file_name /* , ... other image information ... */)
* write_my_chunk();
* png_write_info(png_ptr, info_ptr);
*
* However, given the level of known- and unknown-chunk support in 1.1.0
* However, given the level of known- and unknown-chunk support in 1.2.0
* and up, this should no longer be necessary.
*/
@@ -771,9 +773,7 @@ void write_png(char *file_name /* , ... other image information ... */)
/* If you are only writing one row at a time, this works */
for (y = 0; y < height; y++)
{
png_write_rows(png_ptr, &row_pointers[y], 1);
}
}
#endif no_entire /* use only one output method */