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Imported from libpng-1.4.0beta27.tar

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This commit is contained in:
Glenn Randers-Pehrson
2008-08-05 07:44:42 -05:00
parent 79084216af
commit 51650b8a65
62 changed files with 434 additions and 417 deletions
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66
pngwrite.c
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@@ -1,7 +1,7 @@
/* pngwrite.c - general routines to write a PNG file
*
* Last changed in libpng 1.4.0 [August 4, 2008]
* Last changed in libpng 1.4.0 [August 5, 2008]
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1998-2008 Glenn Randers-Pehrson
* (Version 0.96 Copyright (c) 1996, 1997 Andreas Dilger)
@@ -25,7 +25,7 @@
void PNGAPI
png_write_info_before_PLTE(png_structp png_ptr, png_infop info_ptr)
{
png_debug(1, "in png_write_info_before_PLTE\n");
png_debug(1, "in png_write_info_before_PLTE");
if (png_ptr == NULL || info_ptr == NULL)
return;
if (!(png_ptr->mode & PNG_WROTE_INFO_BEFORE_PLTE))
@@ -99,7 +99,7 @@ png_write_info_before_PLTE(png_structp png_ptr, png_infop info_ptr)
{
png_unknown_chunk *up;
png_debug(5, "writing extra chunks\n");
png_debug(5, "writing extra chunks");
for (up = info_ptr->unknown_chunks;
up < info_ptr->unknown_chunks + info_ptr->unknown_chunks_num;
@@ -130,7 +130,7 @@ png_write_info(png_structp png_ptr, png_infop info_ptr)
int i;
#endif
png_debug(1, "in png_write_info\n");
png_debug(1, "in png_write_info");
if (png_ptr == NULL || info_ptr == NULL)
return;
@@ -215,7 +215,7 @@ png_write_info(png_structp png_ptr, png_infop info_ptr)
/* Check to see if we need to write text chunks */
for (i = 0; i < info_ptr->num_text; i++)
{
png_debug2(2, "Writing header text chunk %d, type %d\n", i,
png_debug2(2, "Writing header text chunk %d, type %d", i,
info_ptr->text[i].compression);
/* an internationalized chunk? */
if (info_ptr->text[i].compression > 0)
@@ -268,7 +268,7 @@ png_write_info(png_structp png_ptr, png_infop info_ptr)
{
png_unknown_chunk *up;
png_debug(5, "writing extra chunks\n");
png_debug(5, "writing extra chunks");
for (up = info_ptr->unknown_chunks;
up < info_ptr->unknown_chunks + info_ptr->unknown_chunks_num;
@@ -296,7 +296,7 @@ png_write_info(png_structp png_ptr, png_infop info_ptr)
void PNGAPI
png_write_end(png_structp png_ptr, png_infop info_ptr)
{
png_debug(1, "in png_write_end\n");
png_debug(1, "in png_write_end");
if (png_ptr == NULL)
return;
if (!(png_ptr->mode & PNG_HAVE_IDAT))
@@ -318,7 +318,7 @@ png_write_end(png_structp png_ptr, png_infop info_ptr)
/* loop through comment chunks */
for (i = 0; i < info_ptr->num_text; i++)
{
png_debug2(2, "Writing trailer text chunk %d, type %d\n", i,
png_debug2(2, "Writing trailer text chunk %d, type %d", i,
info_ptr->text[i].compression);
/* an internationalized chunk? */
if (info_ptr->text[i].compression > 0)
@@ -370,7 +370,7 @@ png_write_end(png_structp png_ptr, png_infop info_ptr)
{
png_unknown_chunk *up;
png_debug(5, "writing extra chunks\n");
png_debug(5, "writing extra chunks");
for (up = info_ptr->unknown_chunks;
up < info_ptr->unknown_chunks + info_ptr->unknown_chunks_num;
@@ -407,7 +407,7 @@ png_write_end(png_structp png_ptr, png_infop info_ptr)
void PNGAPI
png_convert_from_struct_tm(png_timep ptime, struct tm FAR * ttime)
{
png_debug(1, "in png_convert_from_struct_tm\n");
png_debug(1, "in png_convert_from_struct_tm");
ptime->year = (png_uint_16)(1900 + ttime->tm_year);
ptime->month = (png_byte)(ttime->tm_mon + 1);
ptime->day = (png_byte)ttime->tm_mday;
@@ -421,7 +421,7 @@ png_convert_from_time_t(png_timep ptime, time_t ttime)
{
struct tm *tbuf;
png_debug(1, "in png_convert_from_time_t\n");
png_debug(1, "in png_convert_from_time_t");
tbuf = gmtime(&ttime);
png_convert_from_struct_tm(ptime, tbuf);
}
@@ -451,7 +451,7 @@ png_create_write_struct_2(png_const_charp user_png_ver, png_voidp error_ptr,
#endif
#endif
int i;
png_debug(1, "in png_create_write_struct\n");
png_debug(1, "in png_create_write_struct");
#ifdef PNG_USER_MEM_SUPPORTED
png_ptr = (png_structp)png_create_struct_2(PNG_STRUCT_PNG,
(png_malloc_ptr)malloc_fn, (png_voidp)mem_ptr);
@@ -591,7 +591,7 @@ png_write_init_3(png_structpp ptr_ptr, png_const_charp user_png_ver,
}
} while (png_libpng_ver[i++]);
png_debug(1, "in png_write_init_3\n");
png_debug(1, "in png_write_init_3");
#ifdef PNG_SETJMP_SUPPORTED
/* save jump buffer and error functions */
@@ -644,7 +644,7 @@ png_write_rows(png_structp png_ptr, png_bytepp row,
png_uint_32 i; /* row counter */
png_bytepp rp; /* row pointer */
png_debug(1, "in png_write_rows\n");
png_debug(1, "in png_write_rows");
if (png_ptr == NULL)
return;
@@ -669,7 +669,7 @@ png_write_image(png_structp png_ptr, png_bytepp image)
if (png_ptr == NULL)
return;
png_debug(1, "in png_write_image\n");
png_debug(1, "in png_write_image");
#if defined(PNG_WRITE_INTERLACING_SUPPORTED)
/* intialize interlace handling. If image is not interlaced,
this will set pass to 1 */
@@ -694,7 +694,7 @@ png_write_row(png_structp png_ptr, png_bytep row)
{
if (png_ptr == NULL)
return;
png_debug2(1, "in png_write_row (row %ld, pass %d)\n",
png_debug2(1, "in png_write_row (row %ld, pass %d)",
png_ptr->row_number, png_ptr->pass);
/* initialize transformations and other stuff if first time */
@@ -808,12 +808,12 @@ png_write_row(png_structp png_ptr, png_bytep row)
png_ptr->row_info.rowbytes = PNG_ROWBYTES(png_ptr->row_info.pixel_depth,
png_ptr->row_info.width);
png_debug1(3, "row_info->color_type = %d\n", png_ptr->row_info.color_type);
png_debug1(3, "row_info->width = %lu\n", png_ptr->row_info.width);
png_debug1(3, "row_info->channels = %d\n", png_ptr->row_info.channels);
png_debug1(3, "row_info->bit_depth = %d\n", png_ptr->row_info.bit_depth);
png_debug1(3, "row_info->pixel_depth = %d\n", png_ptr->row_info.pixel_depth);
png_debug1(3, "row_info->rowbytes = %lu\n", png_ptr->row_info.rowbytes);
png_debug1(3, "row_info->color_type = %d", png_ptr->row_info.color_type);
png_debug1(3, "row_info->width = %lu", png_ptr->row_info.width);
png_debug1(3, "row_info->channels = %d", png_ptr->row_info.channels);
png_debug1(3, "row_info->bit_depth = %d", png_ptr->row_info.bit_depth);
png_debug1(3, "row_info->pixel_depth = %d", png_ptr->row_info.pixel_depth);
png_debug1(3, "row_info->rowbytes = %lu", png_ptr->row_info.rowbytes);
/* Copy user's row into buffer, leaving room for filter byte. */
png_memcpy(png_ptr->row_buf + 1, row, png_ptr->row_info.rowbytes);
@@ -868,7 +868,7 @@ png_write_row(png_structp png_ptr, png_bytep row)
void PNGAPI
png_set_flush(png_structp png_ptr, int nrows)
{
png_debug(1, "in png_set_flush\n");
png_debug(1, "in png_set_flush");
if (png_ptr == NULL)
return;
png_ptr->flush_dist = (nrows < 0 ? 0 : nrows);
@@ -880,7 +880,7 @@ png_write_flush(png_structp png_ptr)
{
int wrote_IDAT;
png_debug(1, "in png_write_flush\n");
png_debug(1, "in png_write_flush");
if (png_ptr == NULL)
return;
/* We have already written out all of the data */
@@ -940,7 +940,7 @@ png_destroy_write_struct(png_structpp png_ptr_ptr, png_infopp info_ptr_ptr)
png_voidp mem_ptr = NULL;
#endif
png_debug(1, "in png_destroy_write_struct\n");
png_debug(1, "in png_destroy_write_struct");
if (png_ptr_ptr != NULL)
{
png_ptr = *png_ptr_ptr;
@@ -1013,7 +1013,7 @@ png_write_destroy(png_structp png_ptr)
png_free_ptr free_fn;
#endif
png_debug(1, "in png_write_destroy\n");
png_debug(1, "in png_write_destroy");
/* free any memory zlib uses */
deflateEnd(&png_ptr->zstream);
@@ -1070,7 +1070,7 @@ png_write_destroy(png_structp png_ptr)
void PNGAPI
png_set_filter(png_structp png_ptr, int method, int filters)
{
png_debug(1, "in png_set_filter\n");
png_debug(1, "in png_set_filter");
if (png_ptr == NULL)
return;
#if defined(PNG_MNG_FEATURES_SUPPORTED)
@@ -1193,7 +1193,7 @@ png_set_filter_heuristics(png_structp png_ptr, int heuristic_method,
{
int i;
png_debug(1, "in png_set_filter_heuristics\n");
png_debug(1, "in png_set_filter_heuristics");
if (png_ptr == NULL)
return;
if (heuristic_method >= PNG_FILTER_HEURISTIC_LAST)
@@ -1307,7 +1307,7 @@ png_set_filter_heuristics(png_structp png_ptr, int heuristic_method,
void PNGAPI
png_set_compression_level(png_structp png_ptr, int level)
{
png_debug(1, "in png_set_compression_level\n");
png_debug(1, "in png_set_compression_level");
if (png_ptr == NULL)
return;
png_ptr->flags |= PNG_FLAG_ZLIB_CUSTOM_LEVEL;
@@ -1317,7 +1317,7 @@ png_set_compression_level(png_structp png_ptr, int level)
void PNGAPI
png_set_compression_mem_level(png_structp png_ptr, int mem_level)
{
png_debug(1, "in png_set_compression_mem_level\n");
png_debug(1, "in png_set_compression_mem_level");
if (png_ptr == NULL)
return;
png_ptr->flags |= PNG_FLAG_ZLIB_CUSTOM_MEM_LEVEL;
@@ -1327,7 +1327,7 @@ png_set_compression_mem_level(png_structp png_ptr, int mem_level)
void PNGAPI
png_set_compression_strategy(png_structp png_ptr, int strategy)
{
png_debug(1, "in png_set_compression_strategy\n");
png_debug(1, "in png_set_compression_strategy");
if (png_ptr == NULL)
return;
png_ptr->flags |= PNG_FLAG_ZLIB_CUSTOM_STRATEGY;
@@ -1358,7 +1358,7 @@ png_set_compression_window_bits(png_structp png_ptr, int window_bits)
void PNGAPI
png_set_compression_method(png_structp png_ptr, int method)
{
png_debug(1, "in png_set_compression_method\n");
png_debug(1, "in png_set_compression_method");
if (png_ptr == NULL)
return;
if (method != 8)
@@ -1380,7 +1380,7 @@ void PNGAPI
png_set_write_user_transform_fn(png_structp png_ptr, png_user_transform_ptr
write_user_transform_fn)
{
png_debug(1, "in png_set_write_user_transform_fn\n");
png_debug(1, "in png_set_write_user_transform_fn");
if (png_ptr == NULL)
return;
png_ptr->transformations |= PNG_USER_TRANSFORM;