#if 0 /* in case someone actually tries to compile this */
/* example.c - an example of using libpng
- * Last changed in libpng 1.6.15 [November 20, 2014]
- * Maintained 1998-2014 Glenn Randers-Pehrson
+ * Last changed in libpng 1.6.24 [August 4, 2016]
+ * Maintained 1998-2016 Glenn Randers-Pehrson
* Maintained 1996, 1997 Andreas Dilger)
* Written 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
* To the extent possible under law, the authors have waived
*/
if (buffer != NULL &&
png_image_finish_read(&image, NULL/*background*/, buffer,
- 0/*row_stride*/, NULL/*colormap*/) != 0)
+ 0/*row_stride*/, NULL/*colormap*/) != 0)
{
/* Now write the image out to the second argument. In the write
* call 'convert_to_8bit' allows 16-bit data to be squashed down to
* to the 8-bit format.
*/
if (png_image_write_to_file(&image, argv[2], 0/*convert_to_8bit*/,
- buffer, 0/*row_stride*/, NULL/*colormap*/) != 0)
+ buffer, 0/*row_stride*/, NULL/*colormap*/) != 0)
{
/* The image has been written successfully. */
exit(0);
* was compiled with a compatible version of the library. REQUIRED
*/
png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING,
- png_voidp user_error_ptr, user_error_fn, user_warning_fn);
+ png_voidp user_error_ptr, user_error_fn, user_warning_fn);
if (png_ptr == NULL)
{
* low byte.
*/
#ifdef PNG_READ_SCALE_16_TO_8_SUPPORTED
- png_set_scale_16(png_ptr);
+ png_set_scale_16(png_ptr);
#else
png_set_strip_16(png_ptr);
#endif
if (png_get_bKGD(png_ptr, info_ptr, &image_background) != 0)
png_set_background(png_ptr, image_background,
- PNG_BACKGROUND_GAMMA_FILE, 1, 1.0);
+ PNG_BACKGROUND_GAMMA_FILE, 1, 1.0);
else
png_set_background(png_ptr, &my_background,
- PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0);
+ PNG_BACKGROUND_GAMMA_SCREEN, 0, 1.0);
/* Some suggestions as to how to get a screen gamma value
*
png_color std_color_cube[MAX_SCREEN_COLORS];
png_set_quantize(png_ptr, std_color_cube, MAX_SCREEN_COLORS,
- MAX_SCREEN_COLORS, NULL, 0);
+ MAX_SCREEN_COLORS, 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) != 0)
png_get_hIST(png_ptr, info_ptr, &histogram);
png_set_quantize(png_ptr, palette, num_palette,
- max_screen_colors, histogram, 0);
+ max_screen_colors, histogram, 0);
}
}
#endif /* READ_QUANTIZE */
* see the png_read_row() method below:
*/
number_passes = png_set_interlace_handling(png_ptr);
-#else
+#else /* !READ_INTERLACING */
number_passes = 1;
#endif /* READ_INTERLACING */
for (row = 0; row < height; row++)
row_pointers[row] = png_malloc(png_ptr, png_get_rowbytes(png_ptr,
- info_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 */
{
#ifdef sparkle /* Read the image using the "sparkle" effect. */
png_read_rows(png_ptr, &row_pointers[y], NULL,
- number_of_rows);
+ number_of_rows);
#else no_sparkle /* Read the image using the "rectangle" effect */
png_read_rows(png_ptr, NULL, &row_pointers[y],
- number_of_rows);
+ number_of_rows);
#endif no_sparkle /* Use only one of these two methods */
}
* linked libraries.
*/
*png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING,
- png_voidp user_error_ptr, user_error_fn, user_warning_fn);
+ png_voidp user_error_ptr, user_error_fn, user_warning_fn);
if (*png_ptr == NULL)
{
* the function png_get_progressive_ptr(png_ptr).
*/
png_set_progressive_read_fn(*png_ptr, (void *)stream_data,
- info_callback, row_callback, end_callback);
+ info_callback, row_callback, end_callback);
return (OK);
}
int
process_data(png_structp *png_ptr, png_infop *info_ptr,
- png_bytep buffer, png_uint_32 length)
+ png_bytep buffer, png_uint_32 length)
{
if (setjmp(png_jmpbuf((*png_ptr))))
{
}
row_callback(png_structp png_ptr, png_bytep new_row,
- png_uint_32 row_num, int pass)
+ png_uint_32 row_num, int pass)
{
/*
* This function is called for every row in the image. If the
* in case we are using dynamically linked libraries. REQUIRED.
*/
png_ptr = png_create_write_struct(PNG_LIBPNG_VER_STRING,
- png_voidp user_error_ptr, user_error_fn, user_warning_fn);
+ png_voidp user_error_ptr, user_error_fn, user_warning_fn);
if (png_ptr == NULL)
{
* png_init_io() here you would call
*/
png_set_write_fn(png_ptr, (void *)user_io_ptr, user_write_fn,
- user_IO_flush_function);
+ user_IO_flush_function);
/* where user_io_ptr is a structure you want available to the callbacks */
#endif no_streams /* Only use one initialization method */
* currently be PNG_COMPRESSION_TYPE_BASE and PNG_FILTER_TYPE_BASE. REQUIRED
*/
png_set_IHDR(png_ptr, info_ptr, width, height, bit_depth, PNG_COLOR_TYPE_???,
- PNG_INTERLACE_????, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
+ PNG_INTERLACE_????, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
/* Set the palette if there is one. REQUIRED for indexed-color images */
palette = (png_colorp)png_malloc(png_ptr, PNG_MAX_PALETTE_LENGTH
png_bytep row_pointers[height];
if (height > PNG_UINT_32_MAX/(sizeof (png_bytep)))
- png_error (png_ptr, "Image is too tall to process in memory");
+ 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;
+ row_pointers[k] = image + k*width*bytes_per_pixel;
/* One of the following output methods is REQUIRED */
projects / reactos.git / blobdiff