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Imported from libpng-1.2.1beta3.tar

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This commit is contained in:
Glenn Randers-Pehrson
2001-10-27 07:35:13 -05:00
parent 6c97ddbffc
commit 3f549259b2
55 changed files with 227 additions and 209 deletions
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28
example.c
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@@ -114,7 +114,7 @@ void read_png(FILE *fp, unsigned int sig_read) /* file is already open */
if (info_ptr == NULL)
{
fclose(fp);
png_destroy_read_struct(&png_ptr, (png_infopp)NULL, (png_infopp)NULL);
png_destroy_read_struct(&png_ptr, png_infopp_NULL, png_infopp_NULL);
return (ERROR);
}
@@ -126,7 +126,7 @@ void read_png(FILE *fp, unsigned int sig_read) /* file is already open */
if (setjmp(png_jmpbuf(png_ptr)))
{
/* Free all of the memory associated with the png_ptr and info_ptr */
png_destroy_read_struct(&png_ptr, &info_ptr, (png_infopp)NULL);
png_destroy_read_struct(&png_ptr, &info_ptr, png_infopp_NULL);
fclose(fp);
/* If we get here, we had a problem reading the file */
return (ERROR);
@@ -157,7 +157,7 @@ void read_png(FILE *fp, unsigned int sig_read) /* file is already open */
* adjustment), then you can read the entire image (including
* pixels) into the info structure with this call:
*/
png_read_png(png_ptr, info_ptr, png_transforms, (png_voidp)NULL);
png_read_png(png_ptr, info_ptr, png_transforms, png_voidp_NULL);
#else
/* OK, you're doing it the hard way, with the lower-level functions */
@@ -167,7 +167,7 @@ void read_png(FILE *fp, unsigned int sig_read) /* file is already open */
png_read_info(png_ptr, info_ptr);
png_get_IHDR(png_ptr, info_ptr, &width, &height, &bit_depth, &color_type,
&interlace_type, (int *)NULL, (int *)NULL);
&interlace_type, int_p_NULL, int_p_NULL);
/**** Set up the data transformations you want. Note that these are all
**** optional. Only call them if you want/need them. Many of the
@@ -277,7 +277,7 @@ void read_png(FILE *fp, unsigned int sig_read) /* file is already open */
png_color std_color_cube[MAX_SCREEN_COLORS];
png_set_dither(png_ptr, std_color_cube, MAX_SCREEN_COLORS,
MAX_SCREEN_COLORS, (png_uint_16p)NULL, 0);
MAX_SCREEN_COLORS, png_uint_16p_NULL, 0);
}
/* This reduces the image to the palette supplied in the file */
else if (png_get_PLTE(png_ptr, info_ptr, &palette, &num_palette))
@@ -354,17 +354,17 @@ void read_png(FILE *fp, unsigned int sig_read) /* file is already open */
#ifdef single /* Read the image a single row at a time */
for (y = 0; y < height; y++)
{
png_read_rows(png_ptr, &row_pointers[y], (png_bytepp)NULL, 1);
png_read_rows(png_ptr, &row_pointers[y], png_bytepp_NULL, 1);
}
#else no_single /* Read the image several rows at a time */
for (y = 0; y < height; y += number_of_rows)
{
#ifdef sparkle /* Read the image using the "sparkle" effect. */
png_read_rows(png_ptr, &row_pointers[y], (png_bytepp)NULL,
png_read_rows(png_ptr, &row_pointers[y], png_bytepp_NULL,
number_of_rows);
#else no_sparkle /* Read the image using the "rectangle" effect */
png_read_rows(png_ptr, (png_bytepp)NULL, &row_pointers[y],
png_read_rows(png_ptr, png_bytepp_NULL, &row_pointers[y],
number_of_rows);
#endif no_sparkle /* use only one of these two methods */
}
@@ -382,7 +382,7 @@ void read_png(FILE *fp, unsigned int sig_read) /* file is already open */
/* At this point you have read the entire image */
/* clean up after the read, and free any memory allocated - REQUIRED */
png_destroy_read_struct(&png_ptr, &info_ptr, (png_infopp)NULL);
png_destroy_read_struct(&png_ptr, &info_ptr, png_infopp_NULL);
/* close the file */
fclose(fp);
@@ -415,13 +415,13 @@ initialize_png_reader(png_structp *png_ptr, png_infop *info_ptr)
if (*info_ptr == NULL)
{
png_destroy_read_struct(png_ptr, info_ptr, (png_infopp)NULL);
png_destroy_read_struct(png_ptr, info_ptr, png_infopp_NULL);
return (ERROR);
}
if (setjmp(png_jmpbuf((*png_ptr))))
{
png_destroy_read_struct(png_ptr, info_ptr, (png_infopp)NULL);
png_destroy_read_struct(png_ptr, info_ptr, png_infopp_NULL);
return (ERROR);
}
@@ -450,7 +450,7 @@ process_data(png_structp *png_ptr, png_infop *info_ptr,
if (setjmp(png_jmpbuf((*png_ptr))))
{
/* Free the png_ptr and info_ptr memory on error */
png_destroy_read_struct(png_ptr, info_ptr, (png_infopp)NULL);
png_destroy_read_struct(png_ptr, info_ptr, png_infopp_NULL);
return (ERROR);
}
@@ -582,7 +582,7 @@ void write_png(char *file_name /* , ... other image information ... */)
if (info_ptr == NULL)
{
fclose(fp);
png_destroy_write_struct(&png_ptr, (png_infopp)NULL);
png_destroy_write_struct(&png_ptr, png_infopp_NULL);
return (ERROR);
}
@@ -614,7 +614,7 @@ void write_png(char *file_name /* , ... other image information ... */)
* image info living info in the structure. You could "|" many
* PNG_TRANSFORM flags into the png_transforms integer here.
*/
png_write_png(png_ptr, info_ptr, png_transforms, (png_voidp)NULL);
png_write_png(png_ptr, info_ptr, png_transforms, png_voidp_NULL);
#else
/* This is the hard way */