/*{{{ TransformerTerminate*/
static int TransformerTerminate(struct MMEContext_s *Context)
{
MME_ERROR MMEStatus;
if (Context->TransformerInitialized)
{
Context->TransformerInitialized = false;
MMEStatus = MME_TermTransformer(Context->MMEHandle);
if (MMEStatus != MME_SUCCESS)
{
MONITOR_ERROR("%s: Failed to terminate mme transformer - Error 0x%08x.\n", Context->TransformerName, MMEStatus);
return -EFAULT;
}
}
return 0;
}
/* MME_TermTransformer()
* Terminate a transformer instance
*/
MME_ERROR acc_MME_TermTransformer(MME_TransformerHandle_t handle)
{
MME_ERROR mme_status;
int hdl_idx = handles_search(handle);
if (log_enable == ACC_TRUE)
{
FILE *fcmd = cmd_log_lock();
FWRITE(cmd_str[CMD_TERM], strlen(cmd_str[CMD_TERM]) + 1, 1, fcmd);
FWRITE(&hdl_idx, sizeof(int), 1, fcmd);
cmd_log_release(fcmd);
}
mme_status = MME_TermTransformer(handle);
if (log_enable == ACC_TRUE)
{
if (mme_status == MME_SUCCESS) handles[hdl_idx] = 0;
}
return mme_status;
}
int main(void)
{
MME_TransformerInitParams_t initParams = { sizeof(MME_TransformerInitParams_t) };
MixerParamsInit_t mixerInit;
MME_TransformerHandle_t localHdl, remoteHdl;
MME_ERROR err;
/* initialize the underlying EMBX transport */
embxRuntimeInit();
/* initialize the MME API */
err = MME_Init();
if (MME_SUCCESS != err) {
printf("ERROR: cannot initialize the MME API (%d)\n", err);
}
/* other misc. initialization */
OS_SIGNAL_INIT(&callbackSignal);
/* pre-construct the data structure to be passed at transformer
* initialization time
*/
initParams.Priority = MME_PRIORITY_NORMAL;
initParams.Callback = mixerCallback;
initParams.TransformerInitParamsSize = sizeof(MixerParamsInit_t);
initParams.TransformerInitParams_p = &mixerInit;
MME_INDEXED_PARAM(mixerInit, MixerParamsInit_volume, 0) = 1.0;
MME_INDEXED_PARAM(mixerInit, MixerParamsInit_volume, 1) = 4.0/3.0;
/* display the waveforms that will be mixed */
printf("ORIGINAL WAVEFORMS\n"
"------------------\n\n");
printTwinSignal(sample1, sample2, sizeof(sample1));
printf("\nSIMPLE MIXING USING A LOCALLY REGISTERED TRANSFORMER\n"
"----------------------------------------------------\n\n");
/* register a local transformer */
err = Mixer_RegisterTransformer("local.8bit_mixer");
if (MME_SUCCESS != err) {
printf("ERROR: cannot register local.8bit_mixer (%d)\n", err);
}
/* initialize the local transformer */
err = MME_InitTransformer("local.8bit_mixer", &initParams, &localHdl);
if (MME_SUCCESS != err) {
printf("ERROR: cannot instanciate local.8bit_mixer (%d)\n", err);
}
/* perform a simple mix using the local transformer */
err = simpleMix(localHdl);
if (MME_SUCCESS != err) {
printf("ERROR: cannot perform mixer transformer on mme.8bit_mixer (%d)\n", err);
}
printf("\nSIMPLE MIXING USING A REMOTELY REGISTERED TRANSFORMER\n"
"-----------------------------------------------------\n\n");
#if !(defined(__LINUX__) && !defined(__KERNEL__))
/* register the transport for the remote transformer (at this point we will
* block until the remote processor initializes itself)
*/
err = MME_RegisterTransport("shm");
if (MME_SUCCESS != err) {
printf("ERROR: cannot register transport to external processors (%d)\n", err);
}
#endif
/* repeatly attempt to connect to the remote transformer until it is registered or
* a serious error occurs.
*/
do {
err = MME_InitTransformer("mme.8bit_mixer", &initParams, &remoteHdl);
} while (err == MME_UNKNOWN_TRANSFORMER);
if (MME_SUCCESS != err) {
printf("ERROR: cannot instanciate mme.8bit_mixer (%d)\n", err);
}
/* perform the same mix as above using a remotely registered transformer. the
* results should be identical assuming both processors implement IEEE single
* precision floating point maths.
*/
err = simpleMix(remoteHdl);
if (MME_SUCCESS != err) {
printf("ERROR: cannot perform mixer transformer on mme.8bit_mixer (%d)\n", err);
}
/* clean up prior to shutting down */
err = MME_TermTransformer(remoteHdl);
if (MME_SUCCESS != err) {
printf("ERROR: cannot terminate mme.8bit_mixer (%d)\n", err);
}
err = MME_TermTransformer(localHdl);
if (MME_SUCCESS != err) {
printf("ERROR: cannot terminate local.8bit_mixer (%d)\n", err);
}
err = MME_Term();
if (MME_SUCCESS != err) {
printf("ERROR: cannot terminate the MME API (%d)\n", err);
}
#ifndef __LINUX__
(void) EMBX_Deinit();
#endif
return 0;
}
int main(void)
{
MME_TransformerInitParams_t initParams[2] = {{ sizeof(MME_TransformerInitParams_t) },
{ sizeof(MME_TransformerInitParams_t) }};
MixerParamsInit_t mixerInit[2];
MME_TransformerHandle_t remoteHdl[2];
MME_ERROR err;
/* initialize the underlying EMBX transport */
setupEMBXAndOS();
/* initialize the MME API */
err = MME_Init();
if (MME_SUCCESS != err) {
printf("ERROR: cannot initialize the MME API (%d)\n", err);
}
/* other misc. initialization */
OS_SIGNAL_INIT(&callbackSignal);
/* pre-construct the data structure to be passed at transformer
* initialization time
*/
initParams[0].Priority = MME_PRIORITY_NORMAL;
initParams[0].Callback = mixerCallback;
initParams[0].TransformerInitParamsSize = sizeof(MixerParamsInit_t);
initParams[0].TransformerInitParams_p = &mixerInit[0];
MME_INDEXED_PARAM(mixerInit[0], MixerParamsInit_volume, 0) = 1.0;
MME_INDEXED_PARAM(mixerInit[0], MixerParamsInit_volume, 1) = 4.0/3.0;
initParams[1].Priority = MME_PRIORITY_NORMAL;
initParams[1].Callback = mixerCallback;
initParams[1].TransformerInitParamsSize = sizeof(MixerParamsInit_t);
initParams[1].TransformerInitParams_p = &mixerInit[1];
MME_INDEXED_PARAM(mixerInit[1], MixerParamsInit_volume, 0) = 0.4;
MME_INDEXED_PARAM(mixerInit[1], MixerParamsInit_volume, 1) = 0.7;
#if !(defined(__LINUX__) && !defined(__KERNEL__))
/* register the transport for the remote transformer (at this point we will
* block until the remote processor initializes itself)
*/
printf("Trying to register transport shm\n");
err = MME_RegisterTransport("shm");
if (MME_SUCCESS != err) {
printf("ERROR: cannot register transport to external processors (%d)\n", err);
}
#endif
/* repeatly attempt to connect to the remote transformer until it is registered or
* a serious error occurs.
*/
do {
task_delay(time_ticks_per_sec() * 2);
printf("Trying to init mme.8bit_mix_1\n");
err = MME_InitTransformer("mme.8bit_mixer_1", &initParams[0], &remoteHdl[0]);
} while (err == MME_UNKNOWN_TRANSFORMER);
if (MME_SUCCESS != err) {
printf("ERROR: cannot instantiate mme.8bit_mixer_1 (%d)\n", err);
}
do {
task_delay(time_ticks_per_sec() * 2);
printf("Trying to init mme.8bit_mix_2\n");
err = MME_InitTransformer("mme.8bit_mixer_2", &initParams[1], &remoteHdl[1]);
} while (err == MME_UNKNOWN_TRANSFORMER);
if (MME_SUCCESS != err) {
printf("ERROR: cannot instantiate mme.8bit_mixer_2 (%d)\n", err);
}
/* display the waveforms that will be mixed */
printf("ORIGINAL WAVEFORMS\n"
"------------------\n\n");
printTwinSignal(sample1, sample2, sizeof(sample1));
printf("\nSIMPLE MIXING USING TWO REMOTELY REGISTERED TRANSFORMERS\n"
"--------------------------------------------------------\n\n");
/* perform the mix as above using remotely registered transformer. the
* results should be identical assuming both processors implement IEEE single
* precision floating point maths.
*/
err = simpleMix(remoteHdl);
if (MME_SUCCESS != err) {
printf("ERROR: cannot perform mixer transformer on mme.8bit_mixer (%d)\n", err);
}
/* clean up prior to shutting down */
err = MME_TermTransformer(remoteHdl[0]);
if (MME_SUCCESS != err) {
printf("ERROR: cannot terminate mme.8bit_mixer (%d)\n", err);
}
err = MME_TermTransformer(remoteHdl[1]);
if (MME_SUCCESS != err) {
printf("ERROR: cannot terminate mme.8bit_mixer (%d)\n", err);
}
err = MME_Term();
if (MME_SUCCESS != err) {
printf("ERROR: cannot terminate the MME API (%d)\n", err);
}
(void) EMBX_Deinit();
return 0;
}