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Getting oriented
From: |
Redwood (Daniel) |
Subject: |
Getting oriented |
Date: |
Wed, 30 Mar 2016 09:12:24 -0700 |
[I’m attempting to improve the midi output from the c++ code…]
Still getting oriented. Here’s what I need help with:
1) getting the guile REPL to start when the midi performer begins, so I can
inspect the music objects (not the engraver objects).
I’ve gotten the REPL to start after lilypond begins, but here’s what I’m
currently getting
Parsing...guile> (set-current-module lilypond-module)
#<directory (guile-user) b4f36e00>
Then I’m not sure what to do? I try this:
(,locals)
standard input:2:2: In expression (unquote locals):
standard input:2:2: Unbound variable: unquote
ABORT: (unbound-variable)
2) I try debugging from within C++
(gdb) b Performance::output
Breakpoint 1 at 0x82d6750: file performance.cc, line 72.
(gdb) r dant.ly
[…]
Breakpoint 1, Performance::output (this=0x87a74f0, midi_stream=...,
performance_name="") at performance.cc:72
(gdb) p *this
$1 = {<Music_output> = {<Smob<Music_output>> = {<Smob_core> = {
self_scm_ = 0xb2915d30}, <Smob_base<Music_output>> = {
static smob_tag_ = 14975, static scm_init_ = {static list_ =
0x84c3edc <Smob_base<Scale>::scm_init_>, fun_ = 0x80e12b0
<Smob_base<Music_output>::init()>,
next_ = 0x84bd090 <Smob_base<Paper_outputter>::scm_init_>},
static smob_name_ = "Music_output"}, protection_cons_ = 0x404},
_vptr.Music_output = 0x83cc308 <vtable for Performance+8>,
static type_p_name_ = "ly:music-output?"},
audio_staffs_ = std::vector of length 2, capacity 2 = {0x87a6a18,
0x87a6c88}, audio_elements_ = std::vector of length 18, capacity 32 = {
0x87a6a18, 0x865a798, 0x865a7b0, 0x865a900, 0x865c3b0, 0x865c4b0,
0x865c4f0, 0x865a8e8, 0x87a4838, 0x87a6cf8, 0x87a6c88, 0x865caf0,
0x865cd38, 0x865c910, 0x865c700, 0x865c788, 0x865ce30, 0x865c660}, midi_ =
0x87a4ff0, ports_ = false, header_ = 0x404}
My guess is that most of these raw numbers are actually scheme objects, which I
don’t know how to debug.
Advice would be appreciated.
-d
- Getting oriented,
Redwood (Daniel) <=