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dsp_TestPas.dpr
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2002-09-02
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library dsp_TestPas;
{ Important note about DLL memory management: ShareMem must be the
first unit in your library's USES clause AND your project's (select
Project-View Source) USES clause if your DLL exports any procedures or
functions that pass strings as parameters or function results. This
applies to all strings passed to and from your DLL--even those that
are nested in records and classes. ShareMem is the interface unit to
the BORLNDMM.DLL shared memory manager, which must be deployed along
with your DLL. To avoid using BORLNDMM.DLL, pass string information
using PChar or ShortString parameters. }
uses
SysUtils,
Classes,
Graphics,
Types,
KMPPlgIn in '..\KMPPlgIn.pas';
{$R *.res}
var
winampDSPHeader : TwinampDSPHeader;
winampDSPModule : TwinampDSPModule;
kmpDSPHeader : TkmpDSPHeader;
kmpDSPModule : array[0..2] of TkmpDSPModule;
function getwinampDSPModule(num : integer) : PwinampDSPModule; cdecl;
begin
if num=0 then Result:=@winampDSPModule
else Result:=nil;
end;
function ModifyAudio(this_mod : PwinampDSPModule;samples : PByte;
numsamples,bps,nch,srate : integer) : integer; cdecl;
var
i,rr,aa : integer;
ps : pSmallint;
pb : pByte;
begin
if bps=16 then begin
ps:=pSmallint(samples);
if nch=2 then begin
for i:=0 to numsamples-1 do begin
rr:=Random($8fff div 5);
aa:=ps^+rr;
if aa<-32768 then aa:=-32768
else if aa>32767 then aa:=32767;
ps^:=aa;
inc(ps);
rr:=Random($8fff div 5);
aa:=ps^+rr;
if aa<-32768 then aa:=-32768
else if aa>32767 then aa:=32767;
ps^:=aa;
inc(ps);
end;
end
else if nch=1 then begin
for i:=0 to numsamples-1 do begin
rr:=Random($8fff div 5);
aa:=ps^+rr;
if aa<-32768 then aa:=-32768
else if aa>32767 then aa:=32767;
ps^:=aa;
inc(ps);
end;
end;
end
else if bps=8 then begin
pb:=samples;
if nch=2 then begin
for i:=0 to numsamples-1 do begin
rr:=Random($7f div 5);
aa:=pb^+rr;
if aa<0 then aa:=0
else if aa>255 then aa:=255;
pb^:=aa;
inc(pb);
rr:=Random($7f div 5);
aa:=pb^+rr;
if aa<0 then aa:=0
else if aa>255 then aa:=255;
pb^:=aa;
inc(pb);
end;
end
else if nch=1 then begin
for i:=0 to numsamples-1 do begin
rr:=Random($7f div 5);
aa:=pb^+rr;
if aa<0 then aa:=0
else if aa>255 then aa:=255;
pb^:=aa;
inc(pb);
end;
end;
end;
Result:=numsamples;
end;
function getkmpDSPModule(num : integer) : PkmpDSPModule; cdecl;
begin
if num=0 then Result:=@kmpDSPModule[0]
else if num=1 then Result:=@kmpDSPModule[1]
else if num=2 then Result:=@kmpDSPModule[2]
else Result:=nil;
end;
function ModifyVideoHori(this_mod : PkmpDSPModule;image : PkmpYV12Image; ewidth : integer) : integer; cdecl;
var
i,j : integer;
ps,pd : pByte;
begin
ps:=image^.y_plain;
for i:=0 to image^.Height-1 do begin
pd:=ps;
for j:=0 to ewidth-1 do begin
if (j and 3)=0 then pd^:=0;
inc(pd);
end;
inc(ps,image^.Width);
end;
Result:=0;
end;
function ModifyVideoVert(this_mod : PkmpDSPModule;image : PkmpYV12Image; ewidth : integer) : integer; cdecl;
var
i : integer;
pp : pByte;
begin
pp:=image^.y_plain;
for i:=0 to image^.Height-1 do begin
if (i and 3)=0 then FillChar(pp^,ewidth,0);
inc(pp,image^.Width);
end;
Result:=0;
end;
function TimeDisplay(this_mod : PkmpDSPModule;image : PkmpYV12Image; ewidth : integer) : integer; cdecl;
var
Bmp : TBitmap;
Img : PkmpYV12Image;
p : Pointer;
RR : TRect;
begin
Bmp:=TBitmap.Create;
try
Bmp.Width:=image^.Width;
Bmp.Height:=20;
Bmp.HandleType:=bmDIB;
Bmp.PixelFormat:=pf32bit; // 32Bit└╟ DIB╕ª ╕╕╡Θ▒Γ └º╟╪╝¡ ╝│┴ñ╟╤┤┘.
RR:=Rect(0,0,Bmp.Width,Bmp.Height);
Bmp.Canvas.Brush.Color:=clBlack;
Bmp.Canvas.Font.Color:=clWhite;
Bmp.Canvas.FillRect(RR);
Bmp.Canvas.TextOut(2,2,TimeToStr(Now));
p:=Bmp.ScanLine[Bmp.Height-1]; // DIB└╠▒Γ╢º╣«┐í └τ└╧ │í└╠ ├│└╜└╠┤┘...
if this_mod.ImageProcessor<>nil then begin
this_mod.ImageProcessor.kmpAllocYV12Image(Bmp.Width,Bmp.Height,Img);
try // YV12└╠╣╠┴÷╕ª ╕╕╡Θ░φ
this_mod.ImageProcessor.kmpRGB32ToYV12(p,Bmp.Width,Bmp.Height,Img);
// DIB32╕ª YV12╖╬ ║»╚»╟╤┤┘.
this_mod.ImageProcessor.kmpYV12BlendTransDraw(Img,image,@RR,0,0,200);
// ╣▌┼⌡╕φ/ ╣Φ░µ┼⌡╕φ╚┐░·╖╬ ▒╫╕░┤┘.
finally
this_mod.ImageProcessor.kmpFreeYV12Image(Img);
end;
end;
finally
Bmp.Free;
end;
Result:=0;
end;
function winampDSPGetHeader2 : PwinampDSPHeader; cdecl;
begin
// For Audio
winampDSPHeader.version:=$20;
winampDSPHeader.description:='Test for Audio Plugin K-MultimediaPlayer';
winampDSPHeader.winampDSPModule:=getwinampDSPModule;
winampDSPModule.description:='Add noise v0.001 for K-MultimediaPlayer';
winampDSPModule.hwndParent:=0;
winampDSPModule.hDllInstance:=0;
winampDSPModule.Config:=nil;
winampDSPModule.Init:=nil;
winampDSPModule.ModifySamples:=ModifyAudio;
winampDSPModule.Quit:=nil;
winampDSPModule.userData:=nil;
Randomize;
Result:=@winampDSPHeader;
end;
function kmpDSPGetHeader2 : PkmpDSPHeader; cdecl;
begin
// For Video
kmpDSPHeader.version:=$20;
kmpDSPHeader.description:='Test for Video Plugin K-MultimediaPlayer';
kmpDSPHeader.kmpDSPModule:=getkmpDSPModule;
kmpDSPModule[0].description:='Hori Scanline v0.001 for K-MultimediaPlayer';
kmpDSPModule[0].hwndParent:=0;
kmpDSPModule[0].hDllInstance:=0;
kmpDSPModule[0].Config:=nil;
kmpDSPModule[0].Init:=nil;
kmpDSPModule[0].BeforeModifyImage:=nil;
kmpDSPModule[0].AfterModifyImage:=ModifyVideoHori;
kmpDSPModule[0].Quit:=nil;
kmpDSPModule[0].userData:=nil;
kmpDSPModule[1].description:='Hori Scanline v0.001 for K-MultimediaPlayer';
kmpDSPModule[1].hwndParent:=0;
kmpDSPModule[1].hDllInstance:=0;
kmpDSPModule[1].Config:=nil;
kmpDSPModule[1].Init:=nil;
kmpDSPModule[1].BeforeModifyImage:=nil;
kmpDSPModule[1].AfterModifyImage:=ModifyVideoVert;
kmpDSPModule[1].Quit:=nil;
kmpDSPModule[1].userData:=nil;
kmpDSPModule[2].description:='Time Display v0.001 for K-MultimediaPlayer';
kmpDSPModule[2].hwndParent:=0;
kmpDSPModule[2].hDllInstance:=0;
kmpDSPModule[2].Config:=nil;
kmpDSPModule[2].Init:=nil;
kmpDSPModule[2].BeforeModifyImage:=nil;
kmpDSPModule[2].AfterModifyImage:=TimeDisplay;
kmpDSPModule[2].Quit:=nil;
kmpDSPModule[2].userData:=nil;
Result:=@kmpDSPHeader;
end;
exports // ╟╘╝÷ │δ├Γ
winampDSPGetHeader2,
kmpDSPGetHeader2;
begin
end.