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{############################################################################
# Visualizer support for UltraStar deluxe #
# #
# Created by hennymcc #
# 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,
windows;
procedure Init;
procedure VisualizerStart;
procedure VisualizerStop;
procedure VisualizerGetFrame(Time: Extended);
procedure VisualizerDrawGL(Screen: integer);
procedure VisualizerTogglePause;
const
VisualWidth = 640;
VisualHeight = 480;
gx = 32;
gy = 24;
fps = 30;
texsize = 512;
var
pm: PProjectM;
VisualizerStarted, VisualizerPaused: Boolean;
VisualTex: glUint;
pcm_data: TPCM16;
hRC: Integer;
hDC: Integer;
implementation
procedure Init;
begin
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);
end;
procedure VisualizerStart;
begin
exit;
VisualizerStarted := True;
New(pm);
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('Visuals\fonts');
pm^.presetURL := PChar('Visuals\presets');
glPushAttrib(GL_ALL_ATTRIB_BITS);
projectM_init(pm);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glMatrixMode(GL_TEXTURE);
glPushMatrix();
projectM_resetGL(pm, VisualWidth, VisualHeight);
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
glMatrixMode(GL_TEXTURE);
glPopMatrix();
glPopAttrib();
end;
procedure VisualizerStop;
begin
if VisualizerStarted then begin
VisualizerStarted := False;
Dispose(pm);
end;
end;
procedure VisualizerTogglePause;
begin
if VisualizerPaused then VisualizerPaused:=False
else VisualizerPaused:=True;
end;
procedure VisualizerGetFrame(Time: Extended);
var
i: integer;
begin
exit;
if not VisualizerStarted then Exit;
if VisualizerPaused then Exit;
Randomize();
for i := 0 to 511 do
begin
pcm_data[0][i] := RandomRange(High(Smallint), Low(Smallint));
pcm_data[1][i] := pcm_data[0][i];
end;
addPCM16(pcm_data);
glPushAttrib(GL_ALL_ATTRIB_BITS);
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glMatrixMode(GL_TEXTURE);
glPushMatrix();
renderFrame(pm);
glFlush();
{
glBindTexture(GL_TEXTURE_2D, VisualTex);
glCopyTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, 0, 0, VisualWidth, VisualHeight, 0);
}
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
glMatrixMode(GL_TEXTURE);
glPopMatrix();
glPopAttrib();
glClear(GL_DEPTH_BUFFER_BIT);
{
glClear(GL_COLOR_BUFFER_BIT or GL_DEPTH_BUFFER_BIT);
glEnable(GL_TEXTURE_2D);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
glBindTexture(GL_TEXTURE_2D, VisualTex);
glBegin(GL_QUADS);
glTexCoord2f(0, 0); glVertex2f(-1, -1);
glTexCoord2f(1, 0); glVertex2f( 1, -1);
glTexCoord2f(1, 1); glVertex2f( 1, 1);
glTexCoord2f(0, 1); glVertex2f(-1, 1);
glEnd();
glDisable(GL_TEXTURE_2D);
}
end;
procedure VisualizerDrawGL(Screen: integer);
begin
{
// 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;
glEnable(GL_TEXTURE_2D);
glEnable(GL_BLEND);
glColor4f(1, 1, 1, 1);
glBindTexture(GL_TEXTURE_2D, VisualTex);
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);
}
end;
end.
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