[libpng16] Corrected handling of row_pointers in example.c and added some
comments. It has apparently been wrong since libpng-1.0.1c (confusing
use of a 1D and a 2D array for the image source).
diff --git a/example.c b/example.c
index ebc43dc..aaba655 100644
--- a/example.c
+++ b/example.c
@@ -968,12 +968,14 @@
* use the first method if you aren't handling interlacing yourself.
*/
png_uint_32 k, height, width;
- png_byte image[height][width*bytes_per_pixel];
+ /* In this example, "image" is a one-dimensional array of bytes */
+ png_byte image[height*width*bytes_per_pixel];
png_bytep row_pointers[height];
if (height > PNG_UINT_32_MAX/png_sizeof(png_bytep))
png_error (png_ptr, "Image is too tall to process in memory");
+ /* Set up pointers into your "image" byte array */
for (k = 0; k < height; k++)
row_pointers[k] = image + k*width*bytes_per_pixel;
