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Description: libpng 1.5 fixes
This patch fixes incompatibilities with libpng 1.5.
Bug: http://www.htmldoc.org/str.php?L243+Qversion:1.8
Origin: http://www.htmldoc.org/str.php?F243+P0+S-2+C0+I0+E0+M10+Qversion%3A1.8
Forwarded: not-needed
Last-Update: 2011-12-04
Index: htmldoc-1.8.27/htmldoc/image.cxx
===================================================================
--- htmldoc-1.8.27.orig/htmldoc/image.cxx 2011-12-04 22:32:01.000000000 -0500
+++ htmldoc-1.8.27/htmldoc/image.cxx 2011-12-04 22:35:32.000000000 -0500
@@ -1472,6 +1472,9 @@
png_bytep *rows; /* PNG row pointers */
uchar *inptr, /* Input pixels */
*outptr; /* Output pixels */
+ png_bytep trans_alpha;
+ int num_trans;
+ png_color_16p trans_color;
/*
@@ -1499,7 +1502,7 @@
rows = NULL;
- if (setjmp(pp->jmpbuf))
+ if (setjmp(png_jmpbuf(pp)))
{
progress_error(HD_ERROR_BAD_FORMAT, "PNG file contains errors!");
@@ -1526,7 +1529,7 @@
png_read_info(pp, info);
- if (info->color_type & PNG_COLOR_MASK_PALETTE)
+ if (png_get_color_type(pp, info) & PNG_COLOR_MASK_PALETTE)
{
png_set_expand(pp);
@@ -1535,15 +1538,15 @@
if (Encryption)
img->use ++;
}
- else if (info->bit_depth < 8)
+ else if (png_get_bit_depth(pp, info) < 8)
{
png_set_packing(pp);
png_set_expand(pp);
}
- else if (info->bit_depth == 16)
+ else if (png_get_bit_depth(pp, info) == 16)
png_set_strip_16(pp);
- if (info->color_type & PNG_COLOR_MASK_COLOR)
+ if (png_get_color_type(pp, info) & PNG_COLOR_MASK_COLOR)
{
depth = 3;
img->depth = gray ? 1 : 3;
@@ -1554,10 +1557,11 @@
img->depth = 1;
}
- img->width = info->width;
- img->height = info->height;
+ img->width = png_get_image_width(pp, info);
+ img->height = png_get_image_height(pp, info);
- if ((info->color_type & PNG_COLOR_MASK_ALPHA) || info->num_trans)
+ png_get_tRNS(pp, info, &trans_alpha, &num_trans, &trans_color);
+ if ((png_get_color_type(pp, info) & PNG_COLOR_MASK_ALPHA) || num_trans)
{
if ((PSLevel == 0 && PDFVersion >= 14) || PSLevel == 3)
image_need_mask(img, 8);
@@ -1571,14 +1575,14 @@
#ifdef DEBUG
printf("color_type=0x%04x, depth=%d, img->width=%d, img->height=%d, img->depth=%d\n",
- info->color_type, depth, img->width, img->height, img->depth);
- if (info->color_type & PNG_COLOR_MASK_COLOR)
+ png_get_color_type(pp, info), depth, img->width, img->height, img->depth);
+ if (png_get_color_type(pp, info) & PNG_COLOR_MASK_COLOR)
puts(" COLOR");
else
puts(" GRAYSCALE");
- if ((info->color_type & PNG_COLOR_MASK_ALPHA) || info->num_trans)
+ if ((png_get_color_type(pp, info) & PNG_COLOR_MASK_ALPHA) || num_trans)
puts(" ALPHA");
- if (info->color_type & PNG_COLOR_MASK_PALETTE)
+ if (png_get_color_type(pp, info) & PNG_COLOR_MASK_PALETTE)
puts(" PALETTE");
#endif // DEBUG
@@ -1594,9 +1598,9 @@
* Allocate pointers...
*/
- rows = (png_bytep *)calloc(info->height, sizeof(png_bytep));
+ rows = (png_bytep *)calloc(png_get_image_height(pp, info), sizeof(png_bytep));
- for (i = 0; i < (int)info->height; i ++)
+ for (i = 0; i < (int)png_get_image_height(pp, info); i ++)
rows[i] = img->pixels + i * img->width * depth;
/*
@@ -1610,7 +1614,7 @@
* Generate the alpha mask as necessary...
*/
- if ((info->color_type & PNG_COLOR_MASK_ALPHA) || info->num_trans)
+ if ((png_get_color_type(pp, info) & PNG_COLOR_MASK_ALPHA) || num_trans)
{
#ifdef DEBUG
for (inptr = img->pixels, i = 0; i < img->height; i ++)
@@ -1639,7 +1643,7 @@
* Reformat the data as necessary for the reader...
*/
- if (gray && info->color_type & PNG_COLOR_MASK_COLOR)
+ if (gray && png_get_color_type(pp, info) & PNG_COLOR_MASK_COLOR)
{
/*
* Greyscale output needed...
|
