Mercurial > foo_out_sdl

comparison foosdk/sdk/foobar2000/foo_sample/dsp_sample.cpp @ 1:20d02a178406 default tip

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
*: check in everything else yay
author Paper <paper@tflc.us>
date Mon, 05 Jan 2026 02:15:46 -0500
parents
children
comparison
equal deleted inserted replaced
0:e9bb126753e7 1:20d02a178406
1 #include "stdafx.h"
2 #include "dsp_sample.h"
3
4 #ifdef _WIN32
5 #include <helpers/DarkMode.h>
6 #include "resource.h"
7
8 static void RunDSPConfigPopup(const dsp_preset & p_data,HWND p_parent,dsp_preset_edit_callback & p_callback);
9 #endif
10
11 #ifdef __APPLE__
12 // fooSampleDSPView.mm
13 service_ptr ConfigureSampleDSP( fb2k::hwnd_t parent, dsp_preset_edit_callback_v2::ptr callback );
14 #endif
15
16 class dsp_sample : public dsp_impl_base
17 {
18 public:
19 dsp_sample(dsp_preset const & in) : m_gain(parse_preset(in)) {
20 }
21
22 static GUID g_get_guid() {
23 return dsp_sample_common::guid;
24 }
25
26 static void g_get_name(pfc::string_base & p_out) { p_out = "Sample DSP";}
27
28 bool on_chunk(audio_chunk * chunk,abort_callback &) {
29 // Perform any operations on the chunk here.
30 // The most simple DSPs can just alter the chunk in-place here and skip the following functions.
31
32
33 // trivial DSP code: apply our gain to the audio data.
34 chunk->scale( (audio_sample)audio_math::gain_to_scale( m_gain ) );
35
36 // To retrieve the currently processed track, use get_cur_file().
37 // Warning: the track is not always known - it's up to the calling component to provide this data and in some situations we'll be working with data that doesn't originate from an audio file.
38 // If you rely on get_cur_file(), you should change need_track_change_mark() to return true to get accurate information when advancing between tracks.
39
40 return true; //Return true to keep the chunk or false to drop it from the chain.
41 }
42
43 void on_endofplayback(abort_callback &) {
44 // The end of playlist has been reached, we've already received the last decoded audio chunk.
45 // We need to finish any pending processing and output any buffered data through insert_chunk().
46 }
47 void on_endoftrack(abort_callback &) {
48 // Should do nothing except for special cases where your DSP performs special operations when changing tracks.
49 // If this function does anything, you must change need_track_change_mark() to return true.
50 // If you have pending audio data that you wish to output, you can use insert_chunk() to do so.
51 }
52
53 void flush() {
54 // If you have any audio data buffered, you should drop it immediately and reset the DSP to a freshly initialized state.
55 // Called after a seek etc.
56 }
57
58 double get_latency() {
59 // If the DSP buffers some amount of audio data, it should return the duration of buffered data (in seconds) here.
60 return 0;
61 }
62
63 bool need_track_change_mark() {
64 // Return true if you need on_endoftrack() or need to accurately know which track we're currently processing
65 // WARNING: If you return true, the DSP manager will fire on_endofplayback() at DSPs that are before us in the chain on track change to ensure that we get an accurate mark, so use it only when needed.
66 return false;
67 }
68 static bool g_get_default_preset(dsp_preset & p_out) {
69 make_preset(0, p_out);
70 return true;
71 }
72 #ifdef _WIN32
73 static void g_show_config_popup(const dsp_preset & p_data,HWND p_parent,dsp_preset_edit_callback & p_callback) {
74 ::RunDSPConfigPopup(p_data, p_parent, p_callback);
75 }
76 #endif // _WIN32
77 #ifdef __APPLE__
78 static service_ptr g_show_config_popup( fb2k::hwnd_t parent, dsp_preset_edit_callback_v2::ptr callback ) {
79 return ConfigureSampleDSP( parent, callback );
80 }
81 #endif // __APPLE__
82 static bool g_have_config_popup() {return true;}
83 private:
84 float m_gain;
85 };
86
87 // Use dsp_factory_nopreset_t<> instead of dsp_factory_t<> if your DSP does not provide preset/configuration functionality.
88 static dsp_factory_t<dsp_sample> g_dsp_sample_factory;
89
90 #ifdef _WIN32
91
92 class CMyDSPPopup : public CDialogImpl<CMyDSPPopup> {
93 public:
94 CMyDSPPopup(const dsp_preset & initData, dsp_preset_edit_callback & callback) : m_initData(initData), m_callback(callback) {}
95
96 enum { IDD = IDD_DSP };
97
98 enum {
99 RangeMin = -20,
100 RangeMax = 20,
101
102 RangeTotal = RangeMax - RangeMin
103 };
104
105 BEGIN_MSG_MAP_EX(CMyDSPPopup)
106 MSG_WM_INITDIALOG(OnInitDialog)
107 COMMAND_HANDLER_EX(IDOK, BN_CLICKED, OnButton)
108 COMMAND_HANDLER_EX(IDCANCEL, BN_CLICKED, OnButton)
109 MSG_WM_HSCROLL(OnHScroll)
110 END_MSG_MAP()
111
112 private:
113
114 BOOL OnInitDialog(CWindow, LPARAM) {
115 m_dark.AddDialogWithControls(m_hWnd);
116 m_slider = GetDlgItem(IDC_SLIDER);
117 m_slider.SetRange(0, RangeTotal);
118
119 {
120 float val = parse_preset(m_initData);
121 m_slider.SetPos( pfc::clip_t<t_int32>( pfc::rint32(val), RangeMin, RangeMax ) - RangeMin );
122 RefreshLabel(val);
123 }
124 return TRUE;
125 }
126
127 void OnButton(UINT, int id, CWindow) {
128 EndDialog(id);
129 }
130
131 void OnHScroll(UINT nSBCode, UINT nPos, CScrollBar pScrollBar) {
132 float val;
133 val = (float) ( m_slider.GetPos() + RangeMin );
134
135 {
136 dsp_preset_impl preset;
137 make_preset(val, preset);
138 m_callback.on_preset_changed(preset);
139 }
140 RefreshLabel(val);
141 }
142
143 void RefreshLabel(float val) {
144 pfc::string_formatter msg; msg << pfc::format_float(val) << " dB";
145 ::uSetDlgItemText(*this, IDC_SLIDER_LABEL, msg);
146 }
147
148 const dsp_preset & m_initData; // modal dialog so we can reference this caller-owned object.
149 dsp_preset_edit_callback & m_callback;
150
151 CTrackBarCtrl m_slider;
152 fb2k::CDarkModeHooks m_dark;
153 };
154
155 static void RunDSPConfigPopup(const dsp_preset & p_data,HWND p_parent,dsp_preset_edit_callback & p_callback) {
156 CMyDSPPopup popup(p_data, p_callback);
157 if (popup.DoModal(p_parent) != IDOK) {
158 // If the dialog exited with something else than IDOK,k
159 // tell host that the editing has been cancelled by sending it old preset data that we got initialized with
160 p_callback.on_preset_changed(p_data);
161 }
162 }
163 #endif