-
Notifications
You must be signed in to change notification settings - Fork 4
/
changes.txt
107 lines (71 loc) · 3.59 KB
/
changes.txt
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
snes_spc Change Log
-------------------
snes_spc 0.9.0
--------------
- Improved documentation
- SPC: Added spc_skip() function for quickly seeking in an SPC music
file. Runs 3-4x faster than normal playback using the fast DSP (or about
43-60X real-time on my 400 MHz Mac).
- SPC: Added spc_set_tempo() to change tempo of SPC music playback.
- SPC: Sample generation is now corrected to generate exactly one pair
of samples every 32 clocks without exception. Before it could generate a
few samples more or less depending on how far ahead or behind DSP was at
the moment.
- SPC: Changed spc_reset() and spc_soft_reset() to also reset output
buffer (see spc.h).
- SPC: Fixed minor timer counting bug.
- SPC: Stack pointer wrap-around is now emulated (and without any
noticeable performance hit).
- SPC: Runs about 5% faster due to various optimizations.
- SPC: Found way to make fast DSP register accesses cycle-accurate in
most cases, without reducing performance. Allows fast DSP to pass most
of my validation tests.
- DSP: Added surround disable support to fast DSP again.
- DSP: Improved voice un-muting to take effect immediately on fast DSP.
- DSP: Noise shift register now starts at 0x4000 instead of 0x4001 as it
incorrectly did before.
- Converted library to C++ code internally. A C interface is still
included in spc.h and dsp.h. Note that these are different than the
previous interface, so your code will require minor changes:
Old SPC code New SPC code
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
#include "spc/spc.h" #include "snes_spc/spc.h"
snes_spc_t* spc; SNES_SPC* spc;
spc = malloc( sizeof (snes_spc_t) ); spc = spc_new();
spc_init( spc );
spc_end_frame( time ); spc_end_frame( spc, time );
/* etc. */
/* done using SPC */ spc_delete( spc );
Old DSP code New DSP code
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
#include "spc/spc_dsp.h" #include "snes_spc/dsp.h"
spc_dsp_init( ram ); SPC_DSP* dsp;
dsp = spc_dsp_new();
spc_dsp_init( dsp, ram );
spc_dsp_run( count ); spc_dsp_run( dsp, count );
/* etc. */
/* done using DSP */ spc_dsp_delete( dsp );
snes_spc 0.8.0
--------------
- Added several demos
- Added high-pass/low-pass filter to better match SNES sound
- Added save state functionality for SPC and accurate DSP (but not fast
DSP)
- Added emulation of reset switch on NES (soft reset)
- Made source more compatible with pre-C99 compilers by eliminating
mid-block declarations
- SPC: Many S-SMP accuracy improvements, mostly in memory access times
- SPC: S-SMP speed improvements
- SPC: Added SPC load/save functions and KON checking to help trim
silence from beginning
- SPC: Changed spc_init() to have you allocate most of the memory used
by the library so you have more control over it
- DSP: New highly accurate DSP and faster version derived from same code
- DSP: Changed prefix from dsp_ to spc_dsp_. Your DSP code will require
changes.
- DSP: Removed surround disable and gain. Gain can now be done with the
dsp_filter module, and surround disable will probably only be
implemented in the fast DSP at some point.
- DSP: Changed interface to work in clocks rather than samples,
necessary for the new accurate DSP. Sample output is now done with
separate functions. Your DSP code will require changes.