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Imported from libpng-1.0.7beta11.tar

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This commit is contained in:
Glenn Randers-Pehrson
2000-05-06 14:09:57 -05:00
parent 98c9d73605
commit 752945701e
42 changed files with 799 additions and 860 deletions
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95
pngset.c
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@@ -1,7 +1,7 @@
/* pngset.c - storage of image information into info struct
*
* libpng 1.0.6j - May 4, 2000
* libpng 1.0.7beta11 - May 6, 2000
* For conditions of distribution and use, see copyright notice in png.h
* Copyright (c) 1995, 1996 Guy Eric Schalnat, Group 42, Inc.
* Copyright (c) 1996, 1997 Andreas Dilger
@@ -17,7 +17,7 @@
#include "png.h"
#if defined(PNG_bKGD_SUPPORTED)
void
void PNGAPI
png_set_bKGD(png_structp png_ptr, png_infop info_ptr, png_color_16p background)
{
png_debug1(1, "in %s storage function\n", "bKGD");
@@ -31,7 +31,7 @@ png_set_bKGD(png_structp png_ptr, png_infop info_ptr, png_color_16p background)
#if defined(PNG_cHRM_SUPPORTED)
#ifdef PNG_FLOATING_POINT_SUPPORTED
void
void PNGAPI
png_set_cHRM(png_structp png_ptr, png_infop info_ptr,
double white_x, double white_y, double red_x, double red_y,
double green_x, double green_y, double blue_x, double blue_y)
@@ -62,7 +62,7 @@ png_set_cHRM(png_structp png_ptr, png_infop info_ptr,
}
#endif
#ifdef PNG_FIXED_POINT_SUPPORTED
void
void PNGAPI
png_set_cHRM_fixed(png_structp png_ptr, png_infop info_ptr,
png_fixed_point white_x, png_fixed_point white_y, png_fixed_point red_x,
png_fixed_point red_y, png_fixed_point green_x, png_fixed_point green_y,
@@ -97,7 +97,7 @@ png_set_cHRM_fixed(png_structp png_ptr, png_infop info_ptr,
#if defined(PNG_gAMA_SUPPORTED)
#ifdef PNG_FLOATING_POINT_SUPPORTED
void
void PNGAPI
png_set_gAMA(png_structp png_ptr, png_infop info_ptr, double file_gamma)
{
png_debug1(1, "in %s storage function\n", "gAMA");
@@ -112,7 +112,7 @@ png_set_gAMA(png_structp png_ptr, png_infop info_ptr, double file_gamma)
}
#endif
#endif
void
void PNGAPI
png_set_gAMA_fixed(png_structp png_ptr, png_infop info_ptr, png_fixed_point
int_gamma)
{
@@ -130,7 +130,7 @@ png_set_gAMA_fixed(png_structp png_ptr, png_infop info_ptr, png_fixed_point
}
#if defined(PNG_hIST_SUPPORTED)
void
void PNGAPI
png_set_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_16p hist)
{
png_debug1(1, "in %s storage function\n", "hIST");
@@ -142,7 +142,7 @@ png_set_hIST(png_structp png_ptr, png_infop info_ptr, png_uint_16p hist)
}
#endif
void
void PNGAPI
png_set_IHDR(png_structp png_ptr, png_infop info_ptr,
png_uint_32 width, png_uint_32 height, int bit_depth,
int color_type, int interlace_type, int compression_type,
@@ -183,7 +183,7 @@ png_set_IHDR(png_structp png_ptr, png_infop info_ptr,
}
#if defined(PNG_oFFs_SUPPORTED)
void
void PNGAPI
png_set_oFFs(png_structp png_ptr, png_infop info_ptr,
png_int_32 offset_x, png_int_32 offset_y, int unit_type)
{
@@ -199,7 +199,7 @@ png_set_oFFs(png_structp png_ptr, png_infop info_ptr,
#endif
#if defined(PNG_pCAL_SUPPORTED)
void
void PNGAPI
png_set_pCAL(png_structp png_ptr, png_infop info_ptr,
png_charp purpose, png_int_32 X0, png_int_32 X1, int type, int nparams,
png_charp units, png_charpp params)
@@ -245,7 +245,7 @@ png_set_pCAL(png_structp png_ptr, png_infop info_ptr,
#if defined(PNG_READ_sCAL_SUPPORTED) || defined(PNG_WRITE_sCAL_SUPPORTED)
#ifdef PNG_FLOATING_POINT_SUPPORTED
void
void PNGAPI
png_set_sCAL(png_structp png_ptr, png_infop info_ptr,
int unit, double width, double height)
{
@@ -261,7 +261,7 @@ png_set_sCAL(png_structp png_ptr, png_infop info_ptr,
}
#else
#ifdef PNG_FIXED_POINT_SUPPORTED
void
void PNGAPI
png_set_sCAL_s(png_structp png_ptr, png_infop info_ptr,
int unit, png_charp swidth, png_charp sheight)
{
@@ -290,7 +290,7 @@ png_set_sCAL_s(png_structp png_ptr, png_infop info_ptr,
#endif
#if defined(PNG_pHYs_SUPPORTED)
void
void PNGAPI
png_set_pHYs(png_structp png_ptr, png_infop info_ptr,
png_uint_32 res_x, png_uint_32 res_y, int unit_type)
{
@@ -305,7 +305,7 @@ png_set_pHYs(png_structp png_ptr, png_infop info_ptr,
}
#endif
void
void PNGAPI
png_set_PLTE(png_structp png_ptr, png_infop info_ptr,
png_colorp palette, int num_palette)
{
@@ -321,7 +321,7 @@ png_set_PLTE(png_structp png_ptr, png_infop info_ptr,
}
#if defined(PNG_sBIT_SUPPORTED)
void
void PNGAPI
png_set_sBIT(png_structp png_ptr, png_infop info_ptr,
png_color_8p sig_bit)
{
@@ -335,7 +335,7 @@ png_set_sBIT(png_structp png_ptr, png_infop info_ptr,
#endif
#if defined(PNG_sRGB_SUPPORTED)
void
void PNGAPI
png_set_sRGB(png_structp png_ptr, png_infop info_ptr, int intent)
{
png_debug1(1, "in %s storage function\n", "sRGB");
@@ -346,7 +346,7 @@ png_set_sRGB(png_structp png_ptr, png_infop info_ptr, int intent)
info_ptr->valid |= PNG_INFO_sRGB;
}
void
void PNGAPI
png_set_sRGB_gAMA_and_cHRM(png_structp png_ptr, png_infop info_ptr,
int intent)
{
@@ -418,7 +418,7 @@ png_set_sRGB_gAMA_and_cHRM(png_structp png_ptr, png_infop info_ptr,
#if defined(PNG_iCCP_SUPPORTED)
void
void PNGAPI
png_set_iCCP(png_structp png_ptr, png_infop info_ptr,
png_charp name, int compression_type,
png_charp profile, png_uint_32 proflen)
@@ -451,7 +451,7 @@ png_set_iCCP(png_structp png_ptr, png_infop info_ptr,
#endif
#if defined(PNG_TEXT_SUPPORTED)
void
void PNGAPI
png_set_text(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr,
int num_text)
{
@@ -492,10 +492,12 @@ png_set_text(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr,
png_debug1(3, "allocated %d entries for info_ptr->text\n",
info_ptr->max_text);
}
for (i = 0; i < num_text; i++)
{
png_size_t text_length,key_len,lang_len,lang_key_len;
png_size_t text_length,key_len;
#ifdef PNG_iTXt_SUPPORTED
png_size_t lang_len,lang_key_len;
#endif
png_textp textp = &(info_ptr->text[info_ptr->num_text]);
if (text_ptr[i].key == (png_charp)NULL)
@@ -504,6 +506,7 @@ png_set_text(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr,
key_len = png_strlen(text_ptr[i].key);
if(text_ptr[i].compression > 0)
#ifdef PNG_iTXt_SUPPORTED
{
/* set iTXt data */
if (text_ptr[i].key != (png_charp)NULL)
@@ -520,13 +523,21 @@ png_set_text(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr,
lang_len = 0;
lang_key_len = 0;
}
#else
{
png_warning(png_ptr, "iTXt chunk not supported.");
continue;
}
#endif
if (text_ptr[i].text == (png_charp)NULL || text_ptr[i].text[0] == '\0')
{
text_length = 0;
#ifdef PNG_iTXt_SUPPORTED
if(text_ptr[i].compression > 0)
textp->compression = PNG_ITXT_COMPRESSION_NONE;
else
#endif
textp->compression = PNG_TEXT_COMPRESSION_NONE;
}
else
@@ -536,13 +547,22 @@ png_set_text(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr,
}
textp->key = (png_charp)png_malloc(png_ptr,
(png_uint_32)(key_len + lang_len + lang_key_len + text_length + 4));
(png_uint_32)(key_len +
#ifdef PNG_iTXt_SUPPORTED
lang_len + lang_key_len +
#endif
text_length + 4));
png_debug2(2, "Allocated %d bytes at %x in png_set_text\n",
key_len + lang_len + lang_key_len + text_length + 4, textp->key);
key_len +
#ifdef PNG_iTXt_SUPPORTED
lang_len + lang_key_len +
#endif
text_length + 4, textp->key);
png_memcpy(textp->key, text_ptr[i].key,
(png_size_t)(key_len));
*(textp->key+key_len) = '\0';
#ifdef PNG_iTXt_SUPPORTED
if (text_ptr[i].compression > 0)
{
textp->lang=textp->key + key_len + 1;
@@ -554,28 +574,33 @@ png_set_text(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr,
textp->text=textp->lang_key + lang_key_len + 1;
}
else
#endif
{
#ifdef PNG_iTXt_SUPPORTED
textp->lang=(png_charp)NULL;
textp->lang_key=(png_charp)NULL;
#endif
textp->text=textp->key + key_len + 1;
}
if(text_length)
png_memcpy(textp->text, text_ptr[i].text,
(png_size_t)(text_length));
*(textp->text+text_length) = '\0';
#ifdef PNG_iTXt_SUPPORTED
if(textp->compression > 0)
{
textp->text_length = 0;
textp->itxt_length = text_length;
}
else
#endif
{
textp->text_length = text_length;
#ifdef PNG_iTXt_SUPPORTED
textp->itxt_length = 0;
#endif
}
info_ptr->text[info_ptr->num_text]= *textp;
info_ptr->num_text++;
#ifdef PNG_FREE_ME_SUPPORTED
@@ -587,7 +612,7 @@ png_set_text(png_structp png_ptr, png_infop info_ptr, png_textp text_ptr,
#endif
#if defined(PNG_tIME_SUPPORTED)
void
void PNGAPI
png_set_tIME(png_structp png_ptr, png_infop info_ptr, png_timep mod_time)
{
png_debug1(1, "in %s storage function\n", "tIME");
@@ -601,7 +626,7 @@ png_set_tIME(png_structp png_ptr, png_infop info_ptr, png_timep mod_time)
#endif
#if defined(PNG_tRNS_SUPPORTED)
void
void PNGAPI
png_set_tRNS(png_structp png_ptr, png_infop info_ptr,
png_bytep trans, int num_trans, png_color_16p trans_values)
{
@@ -625,7 +650,7 @@ png_set_tRNS(png_structp png_ptr, png_infop info_ptr,
#endif
#if defined(PNG_sPLT_SUPPORTED)
void
void PNGAPI
png_set_sPLT(png_structp png_ptr,
png_infop info_ptr, png_sPLT_tp entries, int nentries)
{
@@ -665,7 +690,7 @@ png_set_sPLT(png_structp png_ptr,
#endif /* PNG_sPLT_SUPPORTED */
#if defined(PNG_WRITE_UNKNOWN_CHUNKS_SUPPORTED)
void
void PNGAPI
png_set_unknown_chunks(png_structp png_ptr,
png_infop info_ptr, png_unknown_chunkp unknowns, int num_unknowns)
{
@@ -703,7 +728,7 @@ png_set_unknown_chunks(png_structp png_ptr,
info_ptr->free_me |= PNG_FREE_UNKN;
#endif
}
void
void PNGAPI
png_set_unknown_chunk_location(png_structp png_ptr, png_infop info_ptr,
int chunk, int location)
{
@@ -715,7 +740,7 @@ png_set_unknown_chunk_location(png_structp png_ptr, png_infop info_ptr,
#if defined(PNG_READ_EMPTY_PLTE_SUPPORTED) || \
defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED)
void
void PNGAPI
png_permit_empty_plte (png_structp png_ptr, int empty_plte_permitted)
{
png_debug1(1, "in png_permit_empty_plte\n", "");
@@ -726,7 +751,7 @@ png_permit_empty_plte (png_structp png_ptr, int empty_plte_permitted)
#endif
#if defined(PNG_UNKNOWN_CHUNKS_SUPPORTED)
void
void PNGAPI
png_set_keep_unknown_chunks(png_structp png_ptr, int keep, png_bytep
chunk_list, int num_chunks)
{
@@ -766,7 +791,7 @@ png_set_keep_unknown_chunks(png_structp png_ptr, int keep, png_bytep
#endif
#if defined(PNG_READ_USER_CHUNKS_SUPPORTED)
void
void PNGAPI
png_set_read_user_chunk_fn(png_structp png_ptr, png_voidp user_chunk_ptr,
png_user_chunk_ptr read_user_chunk_fn)
{
@@ -777,7 +802,7 @@ png_set_read_user_chunk_fn(png_structp png_ptr, png_voidp user_chunk_ptr,
#endif
#if defined(PNG_INFO_IMAGE_SUPPORTED)
void
void PNGAPI
png_set_rows(png_structp png_ptr, png_infop info_ptr, png_bytepp row_pointers)
{
png_debug1(1, "in %s storage function\n", "rows");
@@ -792,7 +817,7 @@ png_set_rows(png_structp png_ptr, png_infop info_ptr, png_bytepp row_pointers)
}
#endif
void
void PNGAPI
png_set_compression_buffer_size(png_structp png_ptr, png_uint_32 size)
{
if(png_ptr->zbuf)