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Use a macro for aligning PCM chunks instead of explictly coding it each time. 

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@31152 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Michael Sevakis 2011-12-05 13:58:35 +00:00
parent 6461f74ae4
commit 906905aa43
3 changed files with 13 additions and 20 deletions
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5
firmware/export/pcm-internal.h
View File

@ -22,6 +22,11 @@
#ifndef PCM_INTERNAL_H
#define PCM_INTERNAL_H
/* Cheapo buffer align macro to align to the 16-16 PCM size */
#define ALIGN_AUDIOBUF(start, size) \
({ (start) = (void *)(((uintptr_t)(start) + 3) & ~3); \
(size) &= ~3; })
struct pcm_peaks
{
long period;

17
firmware/pcm.c
View File

@ -260,8 +260,7 @@ bool pcm_is_initialized(void)
/* Common code to pcm_play_data and pcm_play_pause */
static void pcm_play_data_start(unsigned char *start, size_t size)
{
start = (unsigned char *)(((uintptr_t)start + 3) & ~3);
size &= ~3;
ALIGN_AUDIOBUF(start, size);
if (!(start && size))
{
@ -271,9 +270,7 @@ static void pcm_play_data_start(unsigned char *start, size_t size)
{
logf(" get_more");
get_more(&start, &size);
start = (unsigned char *)(((uintptr_t)start + 3) & ~3);
size &= ~3;
ALIGN_AUDIOBUF(start, size);
}
}
@ -319,8 +316,7 @@ void pcm_play_get_more_callback(void **start, size_t *size)
/* Call registered callback */
get_more((unsigned char **)start, size);
*start = (void *)(((uintptr_t)*start + 3) & ~3);
*size &= ~3;
ALIGN_AUDIOBUF(*start, *size);
if (*start && *size)
return;
@ -557,9 +553,7 @@ void pcm_record_data(pcm_rec_callback_type more_ready,
{
logf("pcm_record_data");
/* 32-bit aligned and sized data only */
start = (void *)(((uintptr_t)start + 3) & ~3);
size &= ~3;
ALIGN_AUDIOBUF(start, size);
if (!(start && size))
{
@ -611,8 +605,7 @@ void pcm_rec_more_ready_callback(int status, void **start, size_t *size)
if (have_more && start)
{
have_more(status, start, size);
*start = (void *)(((uintptr_t)*start + 3) & ~3);
*size &= ~3;
ALIGN_AUDIOBUF(*start, *size);
if (*start && *size)
{

11
firmware/pcm_mixer.c
View File

@ -70,11 +70,6 @@ static struct mixer_channel * active_channels[PCM_MIXER_NUM_CHANNELS+1] IBSS_ATT
#define MAX_IDLE_FRAMES (NATIVE_FREQUENCY*3 / MIX_FRAME_SAMPLES)
static unsigned int idle_counter = 0;
/* Cheapo buffer align macro to align to the 16-16 PCM size */
#define ALIGN_CHANNEL(start, size) \
({ start = (void *)(((uintptr_t)start + 3) & ~3); \
size &= ~3; })
#if (CONFIG_PLATFORM & PLATFORM_NATIVE)
/* Include any implemented CPU-optimized mixdown routines */
@ -244,7 +239,7 @@ fill_frame:
if (chan->get_more)
{
chan->get_more(&chan->start, &chan->size);
ALIGN_CHANNEL(chan->start, chan->size);
ALIGN_AUDIOBUF(chan->start, chan->size);
}
if (!(chan->start && chan->size))
@ -368,7 +363,7 @@ static void mixer_channel_play_start(struct mixer_channel *chan,
{
pcm_play_unlock(); /* Allow playback while doing any callback */
ALIGN_CHANNEL(start, size);
ALIGN_AUDIOBUF(start, size);
if (!(start && size))
{
@ -377,7 +372,7 @@ static void mixer_channel_play_start(struct mixer_channel *chan,
if (get_more)
{
get_more(&start, &size);
ALIGN_CHANNEL(start, size);
ALIGN_AUDIOBUF(start, size);
}
}