aboutsummaryrefslogtreecommitdiffstats
path: root/Game/Code/Classes/UVisualizer.pas
blob: a49187e73a0223f6c0547bab3a227a14f7faa4d1 (plain) (blame)
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
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
{############################################################################
#                   Visualizer support for UltraStar deluxe                 #
#                                                                           #
#   Created by hennymcc                                                     #
#   Slight modifications by Jay Binks                                       #
#   based on UVideo.pas                                                     #
#############################################################################}

unit UVisualizer;

interface

{$IFDEF FPC}
  {$MODE DELPHI}
{$ENDIF}

uses SDL,
     UGraphicClasses,
     textgl,
     math,
     OpenGL12,
     SysUtils,
     UIni,
     {$ifdef DebugDisplay}
     dialogs,
     {$ENDIF}
     projectM,
     UMusic;

implementation

uses
     UGraphic;

var
  singleton_VideoProjectM : IVideoPlayback;

const
  gx           = 32;
  gy           = 24;
  fps          = 30;
  texsize      = 512;
  visuals_Dir  = 'Visuals'; // TODO: move this to a place common for all visualizers
  projectM_Dir = visuals_Dir+'/projectM';

type
  TVideoPlayback_ProjectM = class( TInterfacedObject, IVideoPlayback, IVideoVisualization )

    pm                : PProjectM;

    VisualizerStarted ,
    VisualizerPaused  : Boolean;

    VisualTex         : glUint;
    PCMData           : TPCMData;
    hRC               : Integer;
    hDC               : Integer;

    procedure VisualizerStart;
    procedure VisualizerStop;

    procedure VisualizerTogglePause;
  public
    constructor create();
    procedure   init();
    function    GetName: String;    

    function    Open( aFileName : string): boolean; // true if succeed
    procedure   Close;

    procedure   Play;
    procedure   Pause;
    procedure   Stop;

    procedure   MoveTo(Time: real);
    function    getPosition: real;

    procedure   GetFrame(Time: Extended);
    procedure   DrawGL(Screen: integer);  
  end;  


constructor TVideoPlayback_ProjectM.create();
begin
end;


procedure TVideoPlayback_ProjectM.init();
begin
  writeln( 'TVideoPlayback_ProjectM - INITIALIZE !!!!!!!!' );

  VisualizerStarted := False;
  VisualizerPaused  := False;

  glGenTextures(1, PglUint(@VisualTex));
	glBindTexture(GL_TEXTURE_2D, VisualTex);

	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
	glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
 
  New(pm);
	projectM_reset(pm);

end;

function  TVideoPlayback_ProjectM.GetName: String;
begin
  result := 'ProjectM';
end;


function TVideoPlayback_ProjectM.Open( aFileName : string): boolean; // true if succeed
begin
  VisualizerStart();
  result := true;
end;

procedure TVideoPlayback_ProjectM.Close;
begin
end;

procedure TVideoPlayback_ProjectM.Play;
begin
  VisualizerStart();
end;

procedure TVideoPlayback_ProjectM.Pause;
begin
  VisualizerTogglePause();
end;

procedure TVideoPlayback_ProjectM.Stop;
begin
  VisualizerStop();
end;

procedure TVideoPlayback_ProjectM.MoveTo(Time: real);
begin
  // this code MAY be able to be cut down... but Im not 100% sure..
  // in here, we cant realy move to a specific time, since its all random generated
  // but a call to this function will change the preset, which changes the pattern 
	projectM_reset(pm);

	pm^.fullscreen := 0;
  pm^.renderTarget^.texsize := texsize;
	pm^.gx := gx;
	pm^.gy := gy;
	pm^.fps := fps;
	pm^.renderTarget^.usePbuffers := 0;

	pm^.fontURL := PChar(projectM_Dir+'/fonts');
	pm^.presetURL := PChar(projectM_Dir+'/presets');

	glPushAttrib(GL_ALL_ATTRIB_BITS);
	projectM_init(pm);
  glMatrixMode(GL_PROJECTION);
  glPushMatrix();
  glMatrixMode(GL_MODELVIEW);
  glPushMatrix();
  glMatrixMode(GL_TEXTURE);
  glPushMatrix();

	projectM_resetGL(pm, ScreenW, ScreenH);
  glMatrixMode(GL_PROJECTION);
  glPopMatrix();
  glMatrixMode(GL_MODELVIEW);
  glPopMatrix();
  glMatrixMode(GL_TEXTURE);
  glPopMatrix();
  glPopAttrib();

end;

function  TVideoPlayback_ProjectM.getPosition: real;
begin
  result := 0;  
end;

procedure TVideoPlayback_ProjectM.VisualizerStart;
begin
  VisualizerStarted := True;

//  New(pm);
//	projectM_reset(pm);

 writeln('Render Target');
 writeln( inttostr( integer( assigned(pm^.renderTarget) ) ) );

	pm^.fullscreen := 0;
	pm^.gx  := gx;
	pm^.gy  := gy;
	pm^.fps := fps;
 
  if assigned(pm^.renderTarget) then
  begin
    pm^.renderTarget^.texsize := texsize;
  	pm^.renderTarget^.usePbuffers := 0;
  end;

	pm^.fontURL   := PChar(projectM_Dir+'/fonts');
	pm^.presetURL := PChar(projectM_Dir+'/presets');

	glPushAttrib(GL_ALL_ATTRIB_BITS);
	projectM_init(pm);
  glMatrixMode(GL_PROJECTION);
  glPushMatrix();
  glMatrixMode(GL_MODELVIEW);
  glPushMatrix();
  glMatrixMode(GL_TEXTURE);
  glPushMatrix();

	projectM_resetGL(pm, ScreenW, ScreenH);
  
  glMatrixMode(GL_PROJECTION);
  glPopMatrix();
  glMatrixMode(GL_MODELVIEW);
  glPopMatrix();
  glMatrixMode(GL_TEXTURE);
  glPopMatrix();
  glPopAttrib();
end;

procedure TVideoPlayback_ProjectM.VisualizerStop;
begin
  if VisualizerStarted then begin
    VisualizerStarted := False;
    Dispose(pm);
  end;
end;

procedure TVideoPlayback_ProjectM.VisualizerTogglePause;
begin
  VisualizerPaused := not VisualizerPaused;
end;

procedure TVideoPlayback_ProjectM.GetFrame(Time: Extended);
var
  i: integer;
  nSamples: cardinal;
begin
  if not VisualizerStarted then Exit;
  if VisualizerPaused then Exit;

  // get audio data
  nSamples := AudioPlayback.GetPCMData(PcmData);
  addPCM16Data(PSmallInt(@PcmData), nSamples);

  // store OpenGL state (might be messed up otherwise)
  glPushAttrib(GL_ALL_ATTRIB_BITS);
  glMatrixMode(GL_PROJECTION);
  glPushMatrix();
  glMatrixMode(GL_MODELVIEW);
  glPushMatrix();
  glMatrixMode(GL_TEXTURE);
  glPushMatrix();

  // let projectM render a frame
  renderFrame(pm);
  glFlush();

  {$IFDEF UseTexture}
  glBindTexture(GL_TEXTURE_2D, VisualTex);
  glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 0, 0, VisualWidth, VisualHeight, 0);
  {$ENDIF}

  // restore USDX OpenGL state
  glMatrixMode(GL_PROJECTION);
  glPopMatrix();
  glMatrixMode(GL_MODELVIEW);
  glPopMatrix();
  glMatrixMode(GL_TEXTURE);
  glPopMatrix();
  glPopAttrib();

  // discard projectM's depth buffer information (avoid overlay)
  glClear(GL_DEPTH_BUFFER_BIT);
end;

procedure TVideoPlayback_ProjectM.DrawGL(Screen: integer);
begin
  {$IFDEF UseTexture}
  // have a nice black background to draw on (even if there were errors opening the vid)
  if Screen=1 then begin
    glClearColor(0, 0, 0, 0);
    glClear(GL_COLOR_BUFFER_BIT or GL_DEPTH_BUFFER_BIT);
  end;
  // exit if there's nothing to draw
  if not VisualizerStarted then Exit;

  // setup display
  glMatrixMode(GL_PROJECTION);
  glPushMatrix();
  glLoadIdentity();
  gluOrtho2D(0, 1, 0, 1);
  glMatrixMode(GL_MODELVIEW);
  glPushMatrix();
  glLoadIdentity();

  glEnable(GL_BLEND);
  glEnable(GL_TEXTURE_2D);
  glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
  glBindTexture(GL_TEXTURE_2D, VisualTex);
  glColor4f(1, 1, 1, 1);

  // draw projectM frame
  glBegin(GL_QUADS);
    glTexCoord2f(0, 0); glVertex2f(0, 0);
    glTexCoord2f(1, 0); glVertex2f(1, 0);
    glTexCoord2f(1, 1); glVertex2f(1, 1);
    glTexCoord2f(0, 1); glVertex2f(0, 1);
  glEnd();

  {
  glbegin(GL_QUADS);
    glTexCoord2f(0, 0);
    glVertex2f(400-VisualWidth/2, 300-VisualHeight/2);
    glTexCoord2f(0, 1);
    glVertex2f(400-VisualWidth/2, 300+VisualHeight/2);
    glTexCoord2f(1, 1);
    glVertex2f(400+VisualWidth/2, 300+VisualHeight/2);
    glTexCoord2f(1, 0);
    glVertex2f(400+VisualWidth/2, 300-VisualHeight/2);
  glEnd;
  }

  glDisable(GL_TEXTURE_2D);
  glDisable(GL_BLEND);

  // restore state
  glMatrixMode(GL_PROJECTION);
  glPopMatrix();
  glMatrixMode(GL_MODELVIEW);
  glPopMatrix();
  {$ENDIF}
end;


initialization
  singleton_VideoProjectM := TVideoPlayback_ProjectM.create();

  writeln( 'UVideoProjectM - Register Playback' );
  AudioManager.add( singleton_VideoProjectM );

finalization
  AudioManager.Remove( singleton_VideoProjectM );



end.