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Use the same output func for wav writing and checksum calculation, simplifying the code and possibly speeding up checksum calculation slightly

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25068 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Nils Wallménius 2010-03-08 12:08:29 +00:00
parent a5ffb4dabf
commit d0a170c176
1 changed files with 12 additions and 104 deletions
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116
apps/plugins/test_codec.c
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@ -262,104 +262,8 @@ static void pcmbuf_insert_null(const void *ch1, const void *ch2, int count)
rb->reset_poweroff_timer();
}
static void pcmbuf_insert_checksum(const void *ch1, const void *ch2, int count)
{
const int16_t* data1_16;
const int16_t* data2_16;
const int32_t* data1_32;
const int32_t* data2_32;
const int scale = wavinfo.sampledepth - 15;
const int dc_bias = 1 << (scale - 1);
int channels = (wavinfo.stereomode == STEREO_MONO) ? 1 : 2;
/* Prevent idle poweroff */
rb->reset_poweroff_timer();
if (use_dsp) {
count = process_dsp(ch1, ch2, count);
wavinfo.totalsamples += count;
if (channels == 1)
{
unsigned char *s = dspbuffer, *d = dspbuffer;
int c = count;
while (c-- > 0)
{
*d++ = *s++;
*d++ = *s++;
s++;
s++;
}
}
crc32 = rb->crc_32(dspbuffer, count * 2 * channels, crc32);
}
else
{
if (wavinfo.sampledepth <= 16) {
data1_16 = ch1;
data2_16 = ch2;
switch(wavinfo.stereomode)
{
case STEREO_INTERLEAVED:
while (count--) {
crc32 = rb->crc_32(data1_16, 4, crc32);
data1_16 += 2;
}
break;
case STEREO_NONINTERLEAVED:
while (count--) {
crc32 = rb->crc_32(data1_16++, 2, crc32);
crc32 = rb->crc_32(data2_16++, 2, crc32);
}
break;
case STEREO_MONO:
while (count--) {
crc32 = rb->crc_32(data1_16++, 2, crc32);
}
break;
}
}
else
{
data1_32 = ch1;
data2_32 = ch2;
switch(wavinfo.stereomode)
{
case STEREO_INTERLEAVED:
while (count--) {
int16_t s = clip_sample((*data1_32++ + dc_bias) >> scale);
crc32 = rb->crc_32(&s, 2, crc32);
s = clip_sample((*data1_32++ + dc_bias) >> scale);
crc32 = rb->crc_32(&s, 2, crc32);
}
break;
case STEREO_NONINTERLEAVED:
while (count--) {
int16_t s = clip_sample((*data1_32++ + dc_bias) >> scale);
crc32 = rb->crc_32(&s, 2, crc32);
s = clip_sample((*data2_32++ + dc_bias) >> scale);
crc32 = rb->crc_32(&s, 2, crc32);
}
break;
case STEREO_MONO:
while (count--) {
int16_t s = clip_sample((*data1_32++ + dc_bias) >> scale);
crc32 = rb->crc_32(&s, 2, crc32);
}
break;
}
}
}
}
/* WAV output */
static void pcmbuf_insert_wav(const void *ch1, const void *ch2, int count)
/* WAV output or calculate crc32 of output*/
static void pcmbuf_insert_wav_checksum(const void *ch1, const void *ch2, int count)
{
const int16_t* data1_16;
const int16_t* data2_16;
@ -388,7 +292,10 @@ static void pcmbuf_insert_wav(const void *ch1, const void *ch2, int count)
s++;
}
}
rb->write(wavinfo.fd, dspbuffer, count * 2 * channels);
if (checksum)
crc32 = rb->crc_32(dspbuffer, count * 2 * channels, crc32);
else
rb->write(wavinfo.fd, dspbuffer, count * 2 * channels);
}
else
{
@ -459,7 +366,10 @@ static void pcmbuf_insert_wav(const void *ch1, const void *ch2, int count)
}
wavinfo.totalsamples += count;
rb->write(wavinfo.fd, wavbuffer, p - wavbuffer);
if (checksum)
crc32 = rb->crc_32(wavbuffer, p - wavbuffer, crc32);
else
rb->write(wavinfo.fd, wavbuffer, p - wavbuffer);
} /* else */
}
@ -582,10 +492,8 @@ static void init_ci(void)
ci.codec_get_buffer = codec_get_buffer;
if (wavinfo.fd >= 0) {
ci.pcmbuf_insert = pcmbuf_insert_wav;
} else if (checksum){
ci.pcmbuf_insert = pcmbuf_insert_checksum;
if (wavinfo.fd >= 0 || checksum) {
ci.pcmbuf_insert = pcmbuf_insert_wav_checksum;
} else {
ci.pcmbuf_insert = pcmbuf_insert_null;
}