shithub: pplay

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add debug mode: draw chunk splits

--- a/cmd.c

+++ b/cmd.c

@@ -64,7 +64,7 @@

 }

 /* stupidest possible approach for now: minimal bookkeeping */

-static Chunk *

+Chunk *

 p2c(usize p, usize *off)

 {

 	Chunk *c;

--- a/dat.h

+++ b/dat.h

@@ -30,6 +30,7 @@

 extern int stereo;

 extern int zoom;

+extern int debug;

 #define MIN(x,y)	((x) < (y) ? (x) : (y))

 #define MAX(x,y)	((x) > (y) ? (x) : (y))

--- a/draw.c

+++ b/draw.c

@@ -9,6 +9,7 @@

 	Csamp,

 	Cline,

 	Cloop,

+	Cchunk,

 	Ncol,

 };

 static Image *col[Ncol];

@@ -33,6 +34,31 @@

 }

 static void

+drawchunks(void)

+{

+	int x;

+	usize p, off;

+	Chunk *c;

+	Rectangle r;

+

+	c = p2c(views, &off);

+	r = view->r;

+	for(p=views-off; p<viewe; p+=c->bufsz, c=c->right){

+		if(p == 0)

+			continue;

+		x = (p - views) / T;

+		if(x > Dx(view->r))

+			break;

+		r = view->r;

+		r.min.x += x;

+		r.max.x = r.min.x + 1;

+		draw(view, r, col[Cchunk], nil, ZP);

+		if(c->bufsz == 0)

+			break;

+	}

+}

+

+static void

 drawsamps(void*)

 {

 	int x, lmin, lmax, rmin, rmax;

@@ -159,6 +185,7 @@

 		r.max.x = r.min.x + 1;

 		draw(view, r, col[Cloop], nil, ZP);

 	}

+	drawchunks();

 }

 void

@@ -308,6 +335,7 @@

 	col[Csamp] = eallocimage(Rect(0,0,1,1), 1, 0x440000FF);

 	col[Cline] = eallocimage(Rect(0,0,1,1), 1, 0x884400FF);

 	col[Cloop] = eallocimage(Rect(0,0,1,1), 1, 0x777777FF);

+	col[Cchunk] = eallocimage(Rect(0,0,1,1), 1, 0x777700FF);

 	if((drawc = chancreate(sizeof(ulong), 4)) == nil)

 		sysfatal("chancreate: %r");

 	if(proccreate(drawsamps, nil, mainstacksize) < 0)

--- a/fns.h

+++ b/fns.h

@@ -11,6 +11,7 @@

 void	initdrw(void);

 void	advance(Dot*, usize);

 void	jump(usize);

+Chunk*	p2c(usize, usize*);

 void	setrange(usize, usize);

 int	setpos(usize);

 uchar*	getbuf(Dot, usize, uchar*, usize*);

--- a/pplay.c

+++ b/pplay.c

@@ -8,6 +8,7 @@

 #include "fns.h"

 int stereo, zoom = 1;

+int debug;

 static Keyboardctl *kc;

 static Mousectl *mc;

@@ -76,7 +77,7 @@

 static void

 usage(void)

 {

-	fprint(2, "usage: %s [-cs] [pcm]\n", argv0);

+	fprint(2, "usage: %s [-Dcs] [pcm]\n", argv0);

 	threadexits("usage");

 }

@@ -89,6 +90,7 @@

 	Rune r;

 	ARGBEGIN{

+	case 'D': debug = 1; break;

 	case 'c': cat = 1; break;

 	case 's': stereo = 1; break;

 	default: usage();