[igt-dev] [PATCH i-g-t 3/5] lib/igt_audio: add support for S24_LE and S32_LE signal generation

[Simon Ser <simon.ser@intel.com>]

This adds two new helpers to generate S24_LE and S32_LE signals.

Signed-off-by: Simon Ser <simon.ser@intel.com>
---
 lib/igt_audio.c | 30 ++++++++++++++++++++++++++++++
 lib/igt_audio.h |  4 ++++
 2 files changed, 34 insertions(+)

diff --git a/lib/igt_audio.c b/lib/igt_audio.c
index 90d16fe4bd11..876084a994c3 100644
--- a/lib/igt_audio.c
+++ b/lib/igt_audio.c
@@ -262,6 +262,36 @@ void audio_signal_fill_s16_le(struct audio_signal *signal, int16_t *buffer,
 	free(tmp);
 }
 
+void audio_signal_fill_s24_le(struct audio_signal *signal, int32_t *buffer,
+			      size_t samples)
+{
+	double *tmp;
+	size_t i;
+
+	tmp = malloc(sizeof(double) * signal->channels * samples);
+	audio_signal_fill(signal, tmp, samples);
+
+	for (i = 0; i < signal->channels * samples; ++i)
+		buffer[i] = 0xFFFFFF * tmp[i];
+
+	free(tmp);
+}
+
+void audio_signal_fill_s32_le(struct audio_signal *signal, int32_t *buffer,
+			      size_t samples)
+{
+	double *tmp;
+	size_t i;
+
+	tmp = malloc(sizeof(double) * signal->channels * samples);
+	audio_signal_fill(signal, tmp, samples);
+
+	for (i = 0; i < signal->channels * samples; ++i)
+		buffer[i] = UINT32_MAX * tmp[i];
+
+	free(tmp);
+}
+
 /**
  * Checks that frequencies specified in signal, and only those, are included
  * in the input data.
diff --git a/lib/igt_audio.h b/lib/igt_audio.h
index f915d55d63fc..c8de70871faa 100644
--- a/lib/igt_audio.h
+++ b/lib/igt_audio.h
@@ -44,6 +44,10 @@ void audio_signal_fill(struct audio_signal *signal, double *buffer,
 		       size_t buffer_len);
 void audio_signal_fill_s16_le(struct audio_signal *signal, int16_t *buffer,
 			      size_t buffer_len);
+void audio_signal_fill_s24_le(struct audio_signal *signal, int32_t *buffer,
+			      size_t buffer_len);
+void audio_signal_fill_s32_le(struct audio_signal *signal, int32_t *buffer,
+			      size_t buffer_len);
 bool audio_signal_detect(struct audio_signal *signal, int sampling_rate,
 			 int channel, const double *samples, size_t samples_len);
 size_t audio_extract_channel_s32_le(double *dst, size_t dst_cap,
-- 
2.21.0

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