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+#ifndef _TRANSFORM_TEMPLATES_H_
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+#define _TRANSFORM_TEMPLATES_H_
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+
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+/*--------------------------------------------------------------------------------*/
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+/* Includes */
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+/*--------------------------------------------------------------------------------*/
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+
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+#include "test_templates.h"
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+#include <string.h> /* memcpy() */
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+
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+/*--------------------------------------------------------------------------------*/
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+/* Group Specific Templates */
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+/*--------------------------------------------------------------------------------*/
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+
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+/**
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+ * Comparison SNR thresholds for the data types used in transform_tests.
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+ */
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+#define TRANSFORM_SNR_THRESHOLD_float32_t 90
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+#define TRANSFORM_SNR_THRESHOLD_q31_t 90
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+#define TRANSFORM_SNR_THRESHOLD_q15_t 30
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+
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+#define DCT4_TRANSFORM_SNR_THRESHOLD_float32_t 80
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+#define DCT4_TRANSFORM_SNR_THRESHOLD_q31_t 75
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+#define DCT4_TRANSFORM_SNR_THRESHOLD_q15_t 11
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+
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+/**
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+ * Compare the outputs from the function under test and the reference
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+ * function using SNR.
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+ */
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+#define TRANSFORM_SNR_COMPARE_INTERFACE(block_size, \
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+ output_type) \
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+ do \
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+ { \
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+ TEST_CONVERT_AND_ASSERT_SNR( \
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+ transform_fft_output_f32_ref, \
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+ (output_type *) transform_fft_output_ref, \
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+ transform_fft_output_f32_fut, \
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+ (output_type *) transform_fft_output_fut, \
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+ block_size, \
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+ output_type, \
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+ TRANSFORM_SNR_THRESHOLD_##output_type \
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+ ); \
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+ } while (0)
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+
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+/**
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+ * Compare the outputs from the function under test and the reference
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+ * function using SNR.
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+ */
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+#define DCT_TRANSFORM_SNR_COMPARE_INTERFACE(block_size, \
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+ output_type) \
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+ do \
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+ { \
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+ TEST_CONVERT_AND_ASSERT_SNR( \
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+ transform_fft_output_f32_ref, \
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+ (output_type *) transform_fft_output_ref, \
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+ transform_fft_output_f32_fut, \
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+ (output_type *) transform_fft_output_fut, \
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+ block_size, \
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+ output_type, \
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+ DCT4_TRANSFORM_SNR_THRESHOLD_##output_type \
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+ ); \
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+ } while (0) \
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+
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+/**
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+ * Specialization on #TRANSFORM_SNR_COMPARE_INTERFACE() to fix the block_size
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+ * for complex datasets.
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+ */
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+#define TRANSFORM_SNR_COMPARE_CMPLX_INTERFACE(block_size, output_type) \
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+ /* Complex numbers have two components*/ \
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+ TRANSFORM_SNR_COMPARE_INTERFACE(block_size * 2, output_type )
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+
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+/**
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+ * This macro copys data from the input_ptr into input arrays.
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+ *
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+ * Some functions modify their input data; in order to provide the same data to
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+ * multiple tests, copies must be made so the changes from one function don't
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+ * impact the others.
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+ */
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+#define TRANSFORM_COPY_INPUTS(input_ptr, \
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+ bytes) \
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+ do \
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+ { \
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+ memcpy( \
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+ transform_fft_input_fut, \
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+ input_ptr, \
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+ bytes); \
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+ memcpy( \
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+ transform_fft_input_ref, \
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+ input_ptr, \
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+ bytes); \
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+ } while (0)
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+
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+/**
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+ * This macro copys data from the input_ptr into input arrays. It also creates
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+ * symmetric input data for rfft inverse.
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+ *
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+ * The 4.534234f just makes the middle entry of the array semi random. It's
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+ * actual value doesn't seem to matter much.
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+ *
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+ * Some functions modify their input data; in order to provide the same data to
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+ * multiple tests, copies must be made so the changes from one function don't
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+ * impact the others.
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+ */
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+#define TRANSFORM_PREPARE_INVERSE_INPUTS(input_ptr, \
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+ fftlen, input_type, bytes) \
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+ do \
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+ { \
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+ uint32_t i; \
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+ \
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+ memcpy( \
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+ transform_fft_input_fut, \
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+ input_ptr, \
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+ bytes); \
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+ \
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+ ((input_type*)transform_fft_input_fut)[1] = 0; \
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+ ((input_type*)transform_fft_input_fut)[fftlen + 0] = 0; \
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+ ((input_type*)transform_fft_input_fut)[fftlen + 1] = 0; \
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+ for(i=1;i<fftlen/2;i++) \
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+ { \
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+ *((input_type*)transform_fft_input_fut + fftlen + 2*i + 0) = \
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+ *((input_type*)transform_fft_input_fut + fftlen - 2*i + 0); \
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+ *((input_type*)transform_fft_input_fut + fftlen + 2*i + 1) = \
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+ -(*((input_type*)transform_fft_input_fut + fftlen - 2*i + 1)); \
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+ \
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+ } \
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+ \
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+ memcpy( \
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+ transform_fft_input_ref, \
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+ transform_fft_input_fut, \
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+ bytes * 2); \
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+ } while (0)
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+
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+/**
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+ * This macro copys data from the input_ptr into the in-place input arrays.
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+ *
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+ * Some functions modify their input data; in order to provide the same data to
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+ * multiple tests, copies must be made so the changes from one function don't
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+ * impact the others.
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+ */
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+#define TRANSFORM_PREPARE_INPLACE_INPUTS_DOWNSHIFT(input_ptr, \
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+ bytes, \
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+ type) \
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+ do \
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+ { \
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+ uint32_t i; \
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+ memcpy( \
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+ transform_fft_inplace_input_fut, \
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+ input_ptr, \
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+ bytes); \
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+ memcpy( \
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+ transform_fft_inplace_input_ref, \
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+ input_ptr, \
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+ bytes); \
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+ for(i=0;i<bytes/sizeof(type);i++) { \
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+ *((type*)transform_fft_inplace_input_fut + i) >>= 1; \
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+ *((type*)transform_fft_inplace_input_ref + i) >>= 1;} \
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+ } while (0)
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+
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+/**
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+ * This macro copys data from the input_ptr into the in-place input arrays.
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+ *
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+ * Some functions modify their input data; in order to provide the same data to
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+ * multiple tests, copies must be made so the changes from one function don't
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+ * impact the others.
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+ */
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+#define TRANSFORM_PREPARE_INPLACE_INPUTS(input_ptr, \
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+ bytes) \
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+ do \
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+ { \
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+ memcpy( \
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+ transform_fft_inplace_input_fut, \
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+ input_ptr, \
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+ bytes); \
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+ memcpy( \
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+ transform_fft_inplace_input_ref, \
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+ input_ptr, \
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+ bytes); \
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+ } while (0)
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+
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+
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+#endif /* _TRANSFORM_TEMPLATES_H_ */
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