freemyipod r715 - Code Review

Repository:	freemyipod
Revision:	< r714‎ \| r715 \| r716 >
Date:	23:56, 21 May 2011
Author:	user890104
Status:	new
Tags:
Comment:	Beeper: optimize memory allocation a bit
Modified paths:	/apps/beeper/main.c (modified) (history) /apps/beeper/mario.txt (modified) (history)

Diff [purge]

Index: apps/beeper/main.c
—	—	@@ -93,15 +93,19 @@
94	94
95	95	void playsong(void *buf, size_t size) {
96	96	int i;
97		~~- unsigned int cycles[size / 8], lengths[size / 8];~~
	97	+ unsigned int cycles, lengths, count;
98	98
99		~~- for (i = 0; i < size / 8; ++i)~~
	99	+ count = size / 8;
	100	+ cycles = malloc(count * sizeof(unsigned int));
	101	+ lengths = malloc(count * sizeof(unsigned int));
	102	+
	103	+ for (i = 0; i < count; ++i)
100	104	{
101	105	cycles[i] = ((unsigned int )(buf) + i + i);
102	106	lengths[i] = ((unsigned int )(buf) + i + i + 1);
103	107	}
104	108
105		~~- for (i = 0; i < size / 8; ++i)~~
	109	+ for (i = 0; i < count; ++i)
106	110	{
107	111	if (0 == cycles[i])
108	112	{
—	—	@@ -111,6 +115,9 @@
112	116
113	117	singlebeep(cycles[i], lengths[i]);
114	118	}
	119	+
	120	+ free(lengths);
	121	+ free(cycles);
115	122	}
116	123
117	124	EMCORE_APP_HEADER("Beeper", main, 127)
Index: apps/beeper/mario.txt
—	—	@@ -80,4 +80,5 @@
81	81	p 0 8
82	82	c 5 8
83	83	d 5 8
84		~~-b 4 8~~
\ No newline at end of file
	84	+b 4 8
	85	+