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Midiplay plugin ehancements

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- Improved robustness
 - Improved sound quality
 - Use mixer and DSP

Patch by Igor Poretsky

Change-Id: I6fa617158cbaa53ae842295cdbdbe3a478e49ded
This commit is contained in:
Solomon Peachy 2019-08-04 16:58:20 -04:00
parent eea5bfc9ae
commit ed724fecb1
7 changed files with 232 additions and 115 deletions
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38
apps/plugins/midi/midiutil.c
View file

@ -39,37 +39,40 @@ struct SynthObject voices[MAX_VOICES] IBSS_ATTR;
static void *alloc(int size)
{
static char *offset = NULL;
static size_t totalSize = 0;
static char *offset[2] = {NULL};
static size_t totalSize[2] = {0};
char *ret;
int n;
int remainder = size % 4;
size = size + 4-remainder;
if (offset == NULL)
if (offset[0] == NULL)
{
offset = rb->plugin_get_audio_buffer(&totalSize);
offset[0] = rb->plugin_get_buffer(&totalSize[0]);
}
if (size + 4 > (int)totalSize)
if (offset[1] == NULL)
{
offset[1] = rb->plugin_get_audio_buffer(&totalSize[1]);
}
n = (totalSize[0] > totalSize[1]) ? 1 : 0;
if (size + 4 > (int)totalSize[n])
n ^= 1;
if (size + 4 > (int)totalSize[n])
{
midi_debug("Out of Memory");
midi_debug("MALLOC BARF");
midi_debug("MALLOC BARF");
midi_debug("MALLOC BARF");
midi_debug("MALLOC BARF");
midi_debug("MALLOC BARF");
/* We've made our point. */
return NULL;
}
ret = offset + 4;
*((unsigned int *)offset) = size;
ret = offset[n] + 4;
*((unsigned int *)offset[n]) = size;
offset += size + 4;
totalSize -= size + 4;
offset[n] += size + 4;
totalSize[n] -= size + 4;
return ret;
}
@ -117,7 +120,8 @@ unsigned char readChar(int file)
void * readData(int file, int len)
{
void * dat = malloc(len);
rb->read(file, dat, len);
if (dat)
rb->read(file, dat, len);
return dat;
}