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Optimise/touchup some asm macros in dsp.h, and also remove some now unneeded ones. Add config.h to dsp.c so that these macros actually get used, and also do some minor nitpicks to the resampler while I'm at it.

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git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12322 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Thom Johansen 2007-02-15 22:51:45 +00:00
parent 7ba8aec5af
commit 96e5e9eef8
2 changed files with 56 additions and 72 deletions
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9
apps/dsp.c
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@ -19,6 +19,7 @@
#include <inttypes.h>
#include <string.h>
#include <sound.h>
#include "config.h"
#include "dsp.h"
#include "eq.h"
#include "kernel.h"
@ -268,7 +269,6 @@ static int downsample(int32_t **dst, int32_t **src, int count,
/* Wrap phase accumulator back to start of next frame. */
r->phase = phase - (count << 16);
r->delta = delta;
r->last_sample[0] = src[0][count - 1];
r->last_sample[1] = src[1][count - 1];
return i;
@ -282,12 +282,12 @@ static long upsample(int32_t **dst, int32_t **src, int count, struct resample_da
int i = 0, j;
int pos;
int num_channels = dsp->stereo_mode == STEREO_MONO ? 1 : 2;
while ((pos = phase >> 16) == 0)
while ((phase >> 16) == 0)
{
for (j = 0; j < num_channels; j++)
*d[j]++ = r->last_sample[j] + FRACMUL((phase & 0xffff) << 15,
src[j][pos] - r->last_sample[j]);
src[j][0] - r->last_sample[j]);
phase += delta;
i++;
}
@ -303,7 +303,6 @@ static long upsample(int32_t **dst, int32_t **src, int count, struct resample_da
/* Wrap phase accumulator back to start of next frame. */
r->phase = phase - (count << 16);
r->delta = delta;
r->last_sample[0] = src[0][count - 1];
r->last_sample[1] = src[1][count - 1];
return i;