Changeset 35650 in project

Timestamp:

06/21/18 11:07:37 (3 months ago)

Author:

kristianlm

Message:

eggref stb-image readme.md updates

File:

• wiki/eggref/4/stb-image (modified) (4 diffs)

wiki/eggref/4/stb-image

@@ -1 @@
-
 == chicken-stb-image
 [[toc:]]
@@ -38 +37 @@
 # red, green, blue, alpha
 
-Note that [[https://github.com/nothings/stb|stb_image.h]]'s {{hdr}} and {{pnm}} support only works with
-{{load-image}}.
+{{read-image}} may read beyond the image data, so the data in
+{{current-input-port}} should contain only one image.
 
 <procedure> (read-image-info)</procedure>
@@ -50 +49 @@
 # height
 # number of channels
+
+Note that on 32-bit systems, blobs cannot be larger than 16M. This
+limits image sizes as pixel data is stored as blobs.
 
 
@@ -67 +69 @@
 image is 4x4 with 3-channels.
 
+
+=== Known limitations
+
+===== backwards seek not implemented
+Some special-case images try to seek backwards in the internal
+API. This hasn't been implemented due to increased complexity: you may
+see a "backwards seek not implemented" error. If this is a
+show-stopper, contact the author.
+