shithub: patch

ref: 03e776bc3cb3be7a0dede3de0fb6af99f43b357f
dir: /gb-nosleep/

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diff -r e899bb299ed2 sys/src/games/gb/apu.c
--- a/sys/src/games/gb/apu.c	Fri Feb 10 22:39:47 2017 +0100
+++ b/sys/src/games/gb/apu.c	Sat Feb 11 20:06:13 2017 +0200
@@ -475,7 +475,7 @@
 	if(sbufp == sbuf)
 		return 0;
 	cl = clock;
-	rc = write(fd, sbuf, (sbufp - sbuf) * 2);
+	rc = nosleep ? 1 : write(fd, sbuf, (sbufp - sbuf) * 2);
 	if(rc > 0)
 		sbufp -= (rc+1)/2;
 	if(sbufp < sbuf)
diff -r e899bb299ed2 sys/src/games/gb/dat.h
--- a/sys/src/games/gb/dat.h	Fri Feb 10 22:39:47 2017 +0100
+++ b/sys/src/games/gb/dat.h	Sat Feb 11 20:06:13 2017 +0200
@@ -25,6 +25,7 @@
 extern u8int mode;
 extern u8int mbc, feat;
 extern int keys, scale;
+extern int nosleep;
 
 enum {
 	JOYP = 0x00,
diff -r e899bb299ed2 sys/src/games/gb/gb.c
--- a/sys/src/games/gb/gb.c	Fri Feb 10 22:39:47 2017 +0100
+++ b/sys/src/games/gb/gb.c	Sat Feb 11 20:06:13 2017 +0200
@@ -12,7 +12,7 @@
 Rectangle picr;
 Image *bg, *tmp;
 Mousectl *mc;
-int keys, paused, framestep, backup;
+int keys, paused, framestep, backup, nosleep;
 QLock pauselock;
 int savefd = -1, saveframes;
 ulong clock;
@@ -285,6 +285,9 @@
 				}
 				framestep = !framestep;
 				break;
+			case ' ':
+				nosleep = !nosleep;
+				break;
 			}
 		}
 		k &= ~(k << 1 & 0x0a | k >> 1 & 0x05);
@@ -352,7 +355,9 @@
 	flushimage(display, 1);
 	if(profile)
 		timing();
-	if(audioout() < 0){
+	if(nosleep)
+		old = nsec();
+	if(audioout() < 0 && !nosleep){
 		new = nsec();
 		diff = 0;
 		if(old != 0){