shithub: pplay

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increase chunk size and avoid oob on static buffer for drawsamp

--- a/dat.h

+++ b/dat.h

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

 	WriteDelay = Rate / WriteRate,	/* 1764 default delay */

 	Sampsz = 2 * 2,

 	Outsz = WriteDelay * Sampsz,

-	Iochunksz = 1*1024*1024,	/* ≈ 6 sec. at 44.1 kHz */

+	Iochunksz = 4*1024*1024,	/* ≈ 24 sec. at 44.1 kHz */

 	Ioreadsz = Iochunksz / 32,

 };

 struct Chunk{

--- a/draw.c

+++ b/draw.c

@@ -19,7 +19,8 @@

 static int bgscalyl, bgscalyr, bgscalf;

 static Channel *drawc;

 static usize T;

-static uchar sbuf[Iochunksz];

+static uchar *sbuf;

+static usize sbufsz;

 static Image *

 eallocimage(Rectangle r, int repl, ulong col)

@@ -45,6 +46,10 @@

 end:

 		recvul(drawc);

 again:

+		if(sbufsz < T){

+			sbuf = erealloc(sbuf, T, sbufsz);

+			sbufsz = T;

+		}

 		lockdisplay(display);

 		draw(viewbg, viewbg->r, display->black, nil, ZP);

 		unlockdisplay(display);