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-rw-r--r--externals/oboe/src/flowgraph/FlowgraphUtilities.h70
1 files changed, 0 insertions, 70 deletions
diff --git a/externals/oboe/src/flowgraph/FlowgraphUtilities.h b/externals/oboe/src/flowgraph/FlowgraphUtilities.h
deleted file mode 100644
index e277d6e6f7..0000000000
--- a/externals/oboe/src/flowgraph/FlowgraphUtilities.h
+++ /dev/null
@@ -1,70 +0,0 @@
-/*
- * Copyright 2020 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.
- */
-
-#ifndef FLOWGRAPH_UTILITIES_H
-#define FLOWGRAPH_UTILITIES_H
-
-#include <math.h>
-#include <unistd.h>
-
-using namespace FLOWGRAPH_OUTER_NAMESPACE::flowgraph;
-
-class FlowgraphUtilities {
-public:
-// This was copied from audio_utils/primitives.h
-/**
- * Convert a single-precision floating point value to a Q0.31 integer value.
- * Rounds to nearest, ties away from 0.
- *
- * Values outside the range [-1.0, 1.0) are properly clamped to -2147483648 and 2147483647,
- * including -Inf and +Inf. NaN values are considered undefined, and behavior may change
- * depending on hardware and future implementation of this function.
- */
-static int32_t clamp32FromFloat(float f)
-{
- static const float scale = (float)(1UL << 31);
- static const float limpos = 1.;
- static const float limneg = -1.;
-
- if (f <= limneg) {
- return INT32_MIN;
- } else if (f >= limpos) {
- return INT32_MAX;
- }
- f *= scale;
- /* integer conversion is through truncation (though int to float is not).
- * ensure that we round to nearest, ties away from 0.
- */
- return f > 0 ? f + 0.5 : f - 0.5;
-}
-
-/**
- * Convert a single-precision floating point value to a Q0.23 integer value, stored in a
- * 32 bit signed integer (technically stored as Q8.23, but clamped to Q0.23).
- *
- * Values outside the range [-1.0, 1.0) are properly clamped to -8388608 and 8388607,
- * including -Inf and +Inf. NaN values are considered undefined, and behavior may change
- * depending on hardware and future implementation of this function.
- */
-static int32_t clamp24FromFloat(float f)
-{
- static const float scale = 1 << 23;
- return (int32_t) lroundf(fmaxf(fminf(f * scale, scale - 1.f), -scale));
-}
-
-};
-
-#endif // FLOWGRAPH_UTILITIES_H