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[gb-231r1-is01/GB_2.3_IS01.git] / system / media / opensles / libopensles / IVibra.c
diff --git a/system/media/opensles/libopensles/IVibra.c b/system/media/opensles/libopensles/IVibra.c
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+/*
+ * Copyright (C) 2010 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/* Vibra implementation */
+
+#include "sles_allinclusive.h"
+
+
+static SLresult IVibra_Vibrate(SLVibraItf self, SLboolean vibrate)
+{
+    SL_ENTER_INTERFACE
+
+    IVibra *this = (IVibra *) self;
+    interface_lock_poke(this);
+    this->mVibrate = SL_BOOLEAN_FALSE != vibrate; // normalize
+    interface_unlock_poke(this);
+    result = SL_RESULT_SUCCESS;
+
+    SL_LEAVE_INTERFACE
+}
+
+
+static SLresult IVibra_IsVibrating(SLVibraItf self, SLboolean *pVibrating)
+{
+    SL_ENTER_INTERFACE
+
+    if (NULL == pVibrating) {
+        result = SL_RESULT_PARAMETER_INVALID;
+    } else {
+        IVibra *this = (IVibra *) self;
+        interface_lock_peek(this);
+        SLboolean vibrate = this->mVibrate;
+        interface_unlock_peek(this);
+        *pVibrating = vibrate;
+        result = SL_RESULT_SUCCESS;
+    }
+
+    SL_LEAVE_INTERFACE
+}
+
+
+static SLresult IVibra_SetFrequency(SLVibraItf self, SLmilliHertz frequency)
+{
+    SL_ENTER_INTERFACE
+
+    const SLVibraDescriptor *d = Vibra_id_descriptors[0].descriptor;
+    if (!d->supportsFrequency) {
+        result = SL_RESULT_PRECONDITIONS_VIOLATED;
+    } else if (!(d->minFrequency <= frequency && frequency <= d->maxFrequency)) {
+        result = SL_RESULT_PARAMETER_INVALID;
+    } else {
+        IVibra *this = (IVibra *) self;
+        interface_lock_poke(this);
+        this->mFrequency = frequency;
+        interface_unlock_exclusive(this);
+        result = SL_RESULT_SUCCESS;
+    }
+
+    SL_LEAVE_INTERFACE
+}
+
+
+static SLresult IVibra_GetFrequency(SLVibraItf self, SLmilliHertz *pFrequency)
+{
+    SL_ENTER_INTERFACE
+
+    if (NULL == pFrequency) {
+        result = SL_RESULT_PARAMETER_INVALID;
+    } else {
+        IVibra *this = (IVibra *) self;
+        interface_lock_peek(this);
+        SLmilliHertz frequency = this->mFrequency;
+        interface_unlock_peek(this);
+        *pFrequency = frequency;
+        result = SL_RESULT_SUCCESS;
+    }
+
+    SL_LEAVE_INTERFACE
+}
+
+
+static SLresult IVibra_SetIntensity(SLVibraItf self, SLpermille intensity)
+{
+    SL_ENTER_INTERFACE
+
+    const SLVibraDescriptor *d = Vibra_id_descriptors[0].descriptor;
+    if (!d->supportsIntensity) {
+        result = SL_RESULT_PRECONDITIONS_VIOLATED;
+    } else if (!(0 <= intensity && intensity <= 1000)) {
+        result = SL_RESULT_PARAMETER_INVALID;
+    } else {
+        IVibra *this = (IVibra *) self;
+        interface_lock_poke(this);
+        this->mIntensity = intensity;
+        interface_unlock_poke(this);
+        result = SL_RESULT_SUCCESS;
+    }
+
+    SL_LEAVE_INTERFACE
+}
+
+
+static SLresult IVibra_GetIntensity(SLVibraItf self, SLpermille *pIntensity)
+{
+    SL_ENTER_INTERFACE
+
+    if (NULL == pIntensity) {
+        result = SL_RESULT_PARAMETER_INVALID;
+    } else {
+        const SLVibraDescriptor *d = Vibra_id_descriptors[0].descriptor;
+        if (!d->supportsIntensity) {
+            result = SL_RESULT_PRECONDITIONS_VIOLATED;
+        } else {
+            IVibra *this = (IVibra *) self;
+            interface_lock_peek(this);
+            SLpermille intensity = this->mIntensity;
+            interface_unlock_peek(this);
+            *pIntensity = intensity;
+            result = SL_RESULT_SUCCESS;
+        }
+    }
+
+    SL_LEAVE_INTERFACE
+}
+
+
+static const struct SLVibraItf_ IVibra_Itf = {
+    IVibra_Vibrate,
+    IVibra_IsVibrating,
+    IVibra_SetFrequency,
+    IVibra_GetFrequency,
+    IVibra_SetIntensity,
+    IVibra_GetIntensity
+};
+
+void IVibra_init(void *self)
+{
+    IVibra *this = (IVibra *) self;
+    this->mItf = &IVibra_Itf;
+    this->mVibrate = SL_BOOLEAN_FALSE;
+    // next 2 values are undefined per spec
+    this->mFrequency = Vibra_id_descriptors[0].descriptor->minFrequency;
+    this->mIntensity = 1000;
+}