xemacs/xemacs-libpng15.patch

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Index: xemacs-beta-b604d235f028/src/glyphs-eimage.c
===================================================================
--- xemacs-beta-b604d235f028.orig/src/glyphs-eimage.c
+++ xemacs-beta-b604d235f028/src/glyphs-eimage.c
@@ -887,7 +887,8 @@ png_instantiate (Lisp_Object image_insta
Lisp_Image_Instance *ii = XIMAGE_INSTANCE (image_instance);
struct png_unwind_data unwind;
int speccount = specpdl_depth ();
- int height, width;
+ png_uint_32 height, width;
+ int bit_depth, color_type;
struct png_memory_storage tbr; /* Data to be read */
/* PNG variables */
@@ -955,8 +956,7 @@ png_instantiate (Lisp_Object image_insta
int y, padding;
Binbyte **row_pointers;
UINT_64_BIT pixels_sq;
- height = info_ptr->height;
- width = info_ptr->width;
+ png_get_IHDR(png_ptr, info_ptr, &width, &height, &bit_depth, &color_type, NULL, NULL, NULL);
pixels_sq = (UINT_64_BIT) width * (UINT_64_BIT) height;
if (pixels_sq > ((size_t) -1) / 3)
signal_image_error ("PNG image too large to instantiate", instantiator);
@@ -1018,29 +1018,29 @@ png_instantiate (Lisp_Object image_insta
/* Now that we're using EImage, ask for 8bit RGB triples for any type
of image*/
/* convert palette images to RGB */
- if (info_ptr->color_type == PNG_COLOR_TYPE_PALETTE)
+ if (color_type == PNG_COLOR_TYPE_PALETTE)
png_set_palette_to_rgb (png_ptr);
/* convert grayscale images to RGB */
- else if (info_ptr->color_type == PNG_COLOR_TYPE_GRAY ||
- info_ptr->color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
+ else if (color_type == PNG_COLOR_TYPE_GRAY ||
+ color_type == PNG_COLOR_TYPE_GRAY_ALPHA)
png_set_gray_to_rgb (png_ptr);
/* pad images with depth < 8 bits */
- else if (info_ptr->bit_depth < 8)
+ else if (bit_depth < 8)
{
- if (info_ptr->color_type == PNG_COLOR_TYPE_GRAY)
+ if (color_type == PNG_COLOR_TYPE_GRAY)
png_set_expand (png_ptr);
else
png_set_packing (png_ptr);
}
/* strip 16-bit depth files down to 8 bits */
- if (info_ptr->bit_depth == 16)
+ if (bit_depth == 16)
png_set_strip_16 (png_ptr);
/* strip alpha channel
#### shouldn't we handle this?
first call png_read_update_info in case above transformations
have generated an alpha channel */
png_read_update_info(png_ptr, info_ptr);
- if (info_ptr->color_type & PNG_COLOR_MASK_ALPHA)
+ if (color_type & PNG_COLOR_MASK_ALPHA)
png_set_strip_alpha (png_ptr);
png_read_image (png_ptr, row_pointers);
@@ -1050,19 +1050,22 @@ png_instantiate (Lisp_Object image_insta
* into the glyph code, where you can get to it from lisp
* anyway. - WMP */
{
- int i;
+ int i, num_text;
+ png_textp text_ptr;
DECLARE_EISTRING (key);
DECLARE_EISTRING (text);
-
- for (i = 0 ; i < info_ptr->num_text ; i++)
+
+ png_get_text(png_ptr, info_ptr, &text_ptr, &num_text);
+
+ for (i = 0 ; i < num_text ; i++)
{
/* How paranoid do I have to be about no trailing NULLs, and
using (int)info_ptr->text[i].text_length, and strncpy and a temp
string somewhere? */
eireset(key);
eireset(text);
- eicpy_ext(key, info_ptr->text[i].key, Qbinary);
- eicpy_ext(text, info_ptr->text[i].text, Qbinary);
+ eicpy_ext(key, text_ptr[i].key, Qbinary);
+ eicpy_ext(text, text_ptr[i].text, Qbinary);
warn_when_safe (Qpng, Qinfo, "%s - %s",
eidata(key), eidata(text));