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[devel] Added more blank lines for readability.

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This commit is contained in:
Glenn Randers-Pehrson
2010-05-06 09:44:04 -05:00
parent 198d836483
commit f24daf23a5
25 changed files with 1215 additions and 165 deletions
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56
pngpread.c
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@@ -1,7 +1,7 @@
/* pngpread.c - read a png file in push mode
*
* Last changed in libpng 1.5.0 [April 29, 2010]
* Last changed in libpng 1.5.0 [May 6, 2010]
* Copyright (c) 1998-2010 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
* (Version 0.88 Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.)
@@ -134,6 +134,7 @@ png_push_read_sig(png_structp png_ptr, png_infop info_ptr)
if (num_checked < 4 &&
png_sig_cmp(info_ptr->signature, num_checked, num_to_check - 4))
png_error(png_ptr, "Not a PNG file");
else
png_error(png_ptr, "PNG file corrupted by ASCII conversion");
}
@@ -585,6 +586,7 @@ png_push_crc_finish(png_structp png_ptr)
if (png_ptr->skip_length < (png_uint_32)png_ptr->save_buffer_size)
save_size = (png_size_t)png_ptr->skip_length;
else
save_size = png_ptr->save_buffer_size;
@@ -601,6 +603,7 @@ png_push_crc_finish(png_structp png_ptr)
if (png_ptr->skip_length < (png_uint_32)png_ptr->current_buffer_size)
save_size = (png_size_t)png_ptr->skip_length;
else
save_size = png_ptr->current_buffer_size;
@@ -639,6 +642,7 @@ png_push_fill_buffer(png_structp png_ptr, png_bytep buffer, png_size_t length)
if (length < png_ptr->save_buffer_size)
save_size = length;
else
save_size = png_ptr->save_buffer_size;
@@ -701,11 +705,13 @@ png_push_save_buffer(png_structp png_ptr)
old_buffer = png_ptr->save_buffer;
png_ptr->save_buffer = (png_bytep)png_malloc_warn(png_ptr,
(png_size_t)new_max);
if (png_ptr->save_buffer == NULL)
{
png_free(png_ptr, old_buffer);
png_error(png_ptr, "Insufficient memory for save_buffer");
}
png_memcpy(png_ptr->save_buffer, old_buffer, png_ptr->save_buffer_size);
png_free(png_ptr, old_buffer);
png_ptr->save_buffer_max = new_max;
@@ -754,8 +760,10 @@ png_push_read_IDAT(png_structp png_ptr)
if (png_memcmp(png_ptr->chunk_name, png_IDAT, 4))
{
png_ptr->process_mode = PNG_READ_CHUNK_MODE;
if (!(png_ptr->flags & PNG_FLAG_ZLIB_FINISHED))
png_error(png_ptr, "Not enough compressed data");
return;
}
@@ -773,6 +781,7 @@ png_push_read_IDAT(png_structp png_ptr)
if ((png_uint_32)save_size != png_ptr->idat_size)
png_error(png_ptr, "save_size overflowed in pngpread");
}
else
save_size = png_ptr->save_buffer_size;
@@ -802,6 +811,7 @@ png_push_read_IDAT(png_structp png_ptr)
save_size = png_ptr->current_buffer_size;
png_calculate_crc(png_ptr, png_ptr->current_buffer_ptr, save_size);
if (!(png_ptr->flags & PNG_FLAG_ZLIB_FINISHED))
png_process_IDAT_data(png_ptr, png_ptr->current_buffer_ptr, save_size);
@@ -871,6 +881,7 @@ png_process_IDAT_data(png_structp png_ptr, png_bytep buffer,
{
if (png_ptr->zstream.avail_in)
png_warning(png_ptr, "Too much data in IDAT chunks");
png_ptr->flags |= PNG_FLAG_ZLIB_FINISHED;
break;
}
@@ -899,8 +910,8 @@ png_push_process_row(png_structp png_ptr)
png_ptr->row_info.width);
png_read_filter_row(png_ptr, &(png_ptr->row_info),
png_ptr->row_buf + 1, png_ptr->prev_row + 1,
(int)(png_ptr->row_buf[0]));
png_ptr->row_buf + 1, png_ptr->prev_row + 1,
(int)(png_ptr->row_buf[0]));
png_memcpy(png_ptr->prev_row, png_ptr->row_buf, png_ptr->rowbytes + 1);
@@ -1121,8 +1132,8 @@ png_read_push_finish_row(png_structp png_ptr)
if (png_ptr->interlaced)
{
png_ptr->row_number = 0;
png_memset(png_ptr->prev_row, 0,
png_ptr->rowbytes + 1);
png_memset(png_ptr->prev_row, 0, png_ptr->rowbytes + 1);
do
{
png_ptr->pass++;
@@ -1138,17 +1149,17 @@ png_read_push_finish_row(png_structp png_ptr)
break;
png_ptr->iwidth = (png_ptr->width +
png_pass_inc[png_ptr->pass] - 1 -
png_pass_start[png_ptr->pass]) /
png_pass_inc[png_ptr->pass];
png_pass_inc[png_ptr->pass] - 1 -
png_pass_start[png_ptr->pass]) /
png_pass_inc[png_ptr->pass];
if (png_ptr->transformations & PNG_INTERLACE)
break;
png_ptr->num_rows = (png_ptr->height +
png_pass_yinc[png_ptr->pass] - 1 -
png_pass_ystart[png_ptr->pass]) /
png_pass_yinc[png_ptr->pass];
png_pass_yinc[png_ptr->pass] - 1 -
png_pass_ystart[png_ptr->pass]) /
png_pass_yinc[png_ptr->pass];
} while (png_ptr->iwidth == 0 || png_ptr->num_rows == 0);
}
@@ -1231,8 +1242,7 @@ png_push_read_tEXt(png_structp png_ptr, png_infop info_ptr)
if (text < key + png_ptr->current_text_size)
text++;
text_ptr = (png_textp)png_malloc(png_ptr,
png_sizeof(png_text));
text_ptr = (png_textp)png_malloc(png_ptr, png_sizeof(png_text));
text_ptr->compression = PNG_TEXT_COMPRESSION_NONE;
text_ptr->key = key;
text_ptr->itxt_length = 0;
@@ -1258,10 +1268,10 @@ png_push_handle_zTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32
length)
{
if (!(png_ptr->mode & PNG_HAVE_IHDR) || (png_ptr->mode & PNG_HAVE_IEND))
{
png_error(png_ptr, "Out of place zTXt");
info_ptr = info_ptr; /* To quiet some compiler warnings */
}
{
png_error(png_ptr, "Out of place zTXt");
info_ptr = info_ptr; /* To quiet some compiler warnings */
}
#ifdef PNG_MAX_MALLOC_64K
/* We can't handle zTXt chunks > 64K, since we don't have enough space
@@ -1365,6 +1375,7 @@ png_push_read_zTXt(png_structp png_ptr, png_infop info_ptr)
png_free(png_ptr, text);
return;
}
if (!(png_ptr->zstream.avail_out) || ret == Z_STREAM_END)
{
if (text == NULL)
@@ -1383,6 +1394,7 @@ png_push_read_zTXt(png_structp png_ptr, png_infop info_ptr)
*(text + text_size) = '\0';
}
else
{
png_charp tmp;
@@ -1401,6 +1413,7 @@ png_push_read_zTXt(png_structp png_ptr, png_infop info_ptr)
text_size += png_ptr->zbuf_size - png_ptr->zstream.avail_out;
*(text + text_size) = '\0';
}
if (ret != Z_STREAM_END)
{
png_ptr->zstream.next_out = png_ptr->zbuf;
@@ -1458,10 +1471,10 @@ png_push_handle_iTXt(png_structp png_ptr, png_infop info_ptr, png_uint_32
length)
{
if (!(png_ptr->mode & PNG_HAVE_IHDR) || (png_ptr->mode & PNG_HAVE_IEND))
{
png_error(png_ptr, "Out of place iTXt");
info_ptr = info_ptr; /* To quiet some compiler warnings */
}
{
png_error(png_ptr, "Out of place iTXt");
info_ptr = info_ptr; /* To quiet some compiler warnings */
}
#ifdef PNG_MAX_MALLOC_64K
png_ptr->skip_length = 0; /* This may not be necessary */
@@ -1501,6 +1514,7 @@ png_push_read_iTXt(png_structp png_ptr, png_infop info_ptr)
png_ptr->current_text_left -= text_size;
png_ptr->current_text_ptr += text_size;
}
if (!(png_ptr->current_text_left))
{
png_textp text_ptr;