[elpa] externals/xpm 1431157 09/37: [xpm maint] Add some perf ideas to HACKING; nfc.

[Stefan Monnier]

branch: externals/xpm
commit 1431157591cef2de3da742e79ae9e1ac9575448b
Author: Thien-Thi Nguyen <ttn@gnu.org>
Commit: Thien-Thi Nguyen <ttn@gnu.org>

    [xpm maint] Add some perf ideas to HACKING; nfc.
---
 HACKING | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/HACKING b/HACKING
index c72f206..ff04c62 100644
--- a/HACKING
+++ b/HACKING
@@ -24,6 +24,9 @@ This file is both a guide for newcomers and a todo list for 
oldstayers.
 ***** import from rectangle
 ******* as-is (dangerous)
 ******* w/ char-to-px quantization
+*** perf
+***** ??? use ‘binary’ coding system
+***** make ‘xpm-raster’ do [vh]-line expansion
 * etc
 #+odd