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//
// send the name of the plugin to fs.frame, and fs will call
// perform_effect(struct frame f, struct args a) in your dll.
//
// send it to the right inlet of fs.copy, and
// perform_copy(struct frame f1, struct frame f2, struct args a)
// will be used as a copy operation.
//
#ifndef _PLUGINH
#define _PLUGINH
typedef unsigned char byte;
#define pixel8 byte
#define pixel16 unsigned short
#define pixel24 struct pixel24data
#define pixel32 unsigned long
#define _frame struct frame
#define _args struct args
struct pixel24data { byte b; byte g; byte r; };
struct frame
{
byte *bits; // pixel data
int lpitch; // used to get row position in bits, see scanline below
// this is not always width*(pixelformat/8), you tell me why
int width;
int height;
int pixelformat; // pixelformat is bitcount of your screen, 8, 16, 24 or 32.
};
struct args
{
char *s; // effect/copy arguments in a string
char *ret; // return values. data given in the form
// "pd_receive_name=value;..." will be sent back to Pd.
// memory allocated: 256 characters.
};
// 8-bit pointer to row y
__inline byte *scanline(struct frame f, int y) { return &f.bits[y*f.lpitch]; }
// pointer to 16 bit pixels
__inline pixel16 *scanline16(struct frame f, int y) { return (pixel16 *)scanline(f, y); }
// pointer to 24 bit pixels
__inline pixel24 *scanline24(struct frame f, int y) { return (pixel24 *)scanline(f, y); }
// pointer to 32 bit pixels
__inline pixel32 *scanline32(struct frame f, int y) { return (pixel32 *)scanline(f, y); }
__inline byte r16(pixel16 color)
{
return (color >> 11) << 3;
}
__inline byte g16(pixel16 color)
{
return ((color & 2016) >> 5) << 2;
}
__inline byte b16(pixel16 color)
{
return (color & 31) << 3;
}
__inline byte r24(pixel24 color)
{
return color.r;
}
__inline byte g24(pixel24 color)
{
return color.g;
}
__inline byte b24(pixel24 color)
{
return color.b;
}
__inline byte r32(pixel32 color)
{
return (byte)color;
}
__inline byte g32(pixel32 color)
{
return (byte)(((pixel16)color) >> 8);
}
__inline byte b32(pixel32 color)
{
return (byte)(color >> 16);
}
__inline pixel16 rgbtocolor16(byte r, byte g, byte b)
{
return ((r >> 3) << 11) | // r value shifted
((g >> 2) << 5) | // g value shifted
(b >> 3); // add blue
}
__inline pixel24 rgbtocolor24(byte r, byte g, byte b)
{
pixel24 p;
p.r = r;
p.g = g;
p.b = b;
return p;
}
__inline pixel32 rgbtocolor32(byte r, byte g, byte b)
{
return (b << 16) | (g << 8) | r;
}
// restrict input to be 0..255 <olaf.matthes@gmx.de>
__inline byte klamp255(long in)
{
byte out = in<0 ? 0 : in;
out = 255<out ? 255 : out;
return(out);
}
// restrict input to be 16..235 as it is usual with signals
// conforming to ITU-R 601 <olaf.matthes@gmx.de>
__inline byte klamp601(long in)
{
byte out = in<16 ? 16 : in;
out = 235<out ? 235 : out;
return(out);
}
#endif // #ifndef _PLUGINH
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