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Imported from libpng-1.0.6.tar

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This commit is contained in:
Glenn Randers-Pehrson
2000-03-21 05:13:06 -06:00
parent a77ef625a6
commit 520a764cd7
74 changed files with 2298 additions and 1436 deletions
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27
pngset.c
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@@ -1,7 +1,7 @@
/* pngset.c - storage of image information into info struct
*
* libpng 1.0.5s - February 18, 2000
* libpng 1.0.6 - March 21, 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
@@ -312,8 +312,6 @@ png_set_PLTE(png_structp png_ptr, png_infop info_ptr,
if (png_ptr == NULL || info_ptr == NULL)
return;
png_debug1(3, "allocating PLTE for info (%d bytes)\n", length);
info_ptr->palette = palette;
info_ptr->num_palette = (png_uint_16)num_palette;
@@ -613,30 +611,30 @@ png_set_tRNS(png_structp png_ptr, png_infop info_ptr,
#if defined(PNG_sPLT_SUPPORTED)
void
png_set_sPLT(png_structp png_ptr,
png_infop info_ptr, png_spalette_p entries, int nentries)
png_infop info_ptr, png_sPLT_tp entries, int nentries)
{
png_spalette_p np;
png_sPLT_tp np;
int i;
np = (png_spalette_p)png_malloc(png_ptr,
(info_ptr->splt_palettes_num + nentries) * sizeof(png_spalette));
np = (png_sPLT_tp)png_malloc(png_ptr,
(info_ptr->splt_palettes_num + nentries) * sizeof(png_sPLT_t));
png_memcpy(np, info_ptr->splt_palettes,
info_ptr->splt_palettes_num * sizeof(png_spalette));
info_ptr->splt_palettes_num * sizeof(png_sPLT_t));
png_free(png_ptr, info_ptr->splt_palettes);
for (i = 0; i < nentries; i++)
{
png_spalette_p to = np + info_ptr->splt_palettes_num + i;
png_spalette_p from = entries + i;
png_sPLT_tp to = np + info_ptr->splt_palettes_num + i;
png_sPLT_tp from = entries + i;
to->name = (png_charp)png_malloc(png_ptr,
png_strlen(from->name) + 1);
png_strcpy(to->name, from->name);
to->entries = (png_spalette_entryp)png_malloc(png_ptr,
from->nentries * sizeof(png_spalette));
to->entries = (png_sPLT_entryp)png_malloc(png_ptr,
from->nentries * sizeof(png_sPLT_t));
png_memcpy(to->entries, from->entries,
from->nentries * sizeof(png_spalette));
from->nentries * sizeof(png_sPLT_t));
to->nentries = from->nentries;
to->depth = from->depth;
}
@@ -687,7 +685,8 @@ png_set_unknown_chunks(png_structp png_ptr,
}
#endif
#if defined(PNG_READ_EMPTY_PLTE_SUPPORTED)
#if defined(PNG_READ_EMPTY_PLTE_SUPPORTED) || \
defined(PNG_WRITE_EMPTY_PLTE_SUPPORTED)
void
png_permit_empty_plte (png_structp png_ptr, int empty_plte_permitted)
{