From 7c5e5f5728a59bcf332be5d80b6a30c4725a32e5 Mon Sep 17 00:00:00 2001
From: Jaroslav Kysela <perex@perex.cz>
Date: Wed, 5 Feb 2003 21:26:14 +0000
Subject: [PATCH] Added snd_pcm_sw_params_get_boundary() function. Implemented
 refine function in dmix.

---
 include/pcm.h      |  1 +
 src/pcm/pcm.c      | 22 ++--------------------
 src/pcm/pcm_dmix.c | 39 ++++++++++++++++++++++++++++++++++++++-
 3 files changed, 41 insertions(+), 21 deletions(-)

diff --git a/include/pcm.h b/include/pcm.h
index 052f230b..880c749d 100644
--- a/include/pcm.h
+++ b/include/pcm.h
@@ -790,6 +790,7 @@ size_t snd_pcm_sw_params_sizeof(void);
 int snd_pcm_sw_params_malloc(snd_pcm_sw_params_t **ptr);
 void snd_pcm_sw_params_free(snd_pcm_sw_params_t *obj);
 void snd_pcm_sw_params_copy(snd_pcm_sw_params_t *dst, const snd_pcm_sw_params_t *src);
+int snd_pcm_sw_params_get_boundary(const snd_pcm_sw_params_t *params, snd_pcm_uframes_t *val);
 
 #ifndef ALSA_LIBRARY_BUILD
 #ifdef ALSA_PCM_NEW_SW_PARAMS_API
diff --git a/src/pcm/pcm.c b/src/pcm/pcm.c
index b0a894cd..cc09e85a 100644
--- a/src/pcm/pcm.c
+++ b/src/pcm/pcm.c
@@ -1700,7 +1700,7 @@ static int snd_pcm_open_conf(snd_pcm_t **pcmp, const char *name,
 #ifndef PIC
 	extern void *snd_pcm_open_symbols(void);
 #endif
-	void *h;
+	void *h = NULL;
 	if (snd_config_get_type(pcm_conf) != SND_CONFIG_TYPE_COMPOUND) {
 		char *val;
 		id = NULL;
@@ -4988,25 +4988,7 @@ void snd_pcm_sw_params_copy(snd_pcm_sw_params_t *dst, const snd_pcm_sw_params_t
 	*dst = *src;
 }
 
-/**
- * \brief Set boundary for ring pointers inside a software configuration container
- * \param pcm PCM handle
- * \param params Software configuration container
- * \param val boundary in frames
- * \return 0 otherwise a negative error code
- */
-#ifndef DOXYGEN
-int snd_pcm_sw_params_set_boundary(snd_pcm_t *pcm ATTRIBUTE_UNUSED, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val)
-#else
-int snd_pcm_sw_params_set_boundary(snd_pcm_t *pcm, snd_pcm_sw_params_t *params, snd_pcm_uframes_t val)
-#endif
-{
-	assert(pcm && params);
-	params->boundary = val;
-	return 0;
-}
-
-/**
+/*
  * \brief Get boundary for ring pointers from a software configuration container
  * \param params Software configuration container
  * \param val Returned boundary in frames
diff --git a/src/pcm/pcm_dmix.c b/src/pcm/pcm_dmix.c
index 9770134d..a19b19f1 100644
--- a/src/pcm/pcm_dmix.c
+++ b/src/pcm/pcm_dmix.c
@@ -453,10 +453,47 @@ static int snd_pcm_dmix_info(snd_pcm_t *pcm, snd_pcm_info_t * info)
 	return 0;
 }
 
+static inline snd_mask_t *hw_param_mask(snd_pcm_hw_params_t *params,
+					snd_pcm_hw_param_t var)
+{
+	return &params->masks[var - SND_PCM_HW_PARAM_FIRST_MASK];
+}
+
+static inline snd_interval_t *hw_param_interval(snd_pcm_hw_params_t *params,
+						snd_pcm_hw_param_t var)
+{
+	return &params->intervals[var - SND_PCM_HW_PARAM_FIRST_INTERVAL];
+}
+
 static int snd_pcm_dmix_hw_refine(snd_pcm_t *pcm, snd_pcm_hw_params_t *params)
 {
 	snd_pcm_dmix_t *dmix = pcm->private_data;
-	//snd_interval_refine_set(
+	snd_pcm_hw_params_t *hw_params = &dmix->shmptr->hw_params;
+	static snd_mask_t access = { .bits = { 
+					(1<<SNDRV_PCM_ACCESS_MMAP_INTERLEAVED) |
+					(1<<SNDRV_PCM_ACCESS_MMAP_NONINTERLEAVED) |
+					(1<<SNDRV_PCM_ACCESS_RW_INTERLEAVED) |
+					(1<<SNDRV_PCM_ACCESS_RW_NONINTERLEAVED),
+					0, 0, 0 } };
+
+	snd_mask_refine(hw_param_mask(params, SND_PCM_HW_PARAM_ACCESS), &access);
+	snd_mask_refine_set(hw_param_mask(params, SND_PCM_HW_PARAM_FORMAT),
+			    snd_mask_value(hw_param_mask(hw_params, SND_PCM_HW_PARAM_FORMAT)));
+	//snd_mask_none(hw_param_mask(params, SND_PCM_HW_PARAM_SUBFORMAT));
+	snd_interval_refine_set(hw_param_interval(params, SND_PCM_HW_PARAM_CHANNELS),
+				snd_interval_value(hw_param_interval(hw_params, SND_PCM_HW_PARAM_CHANNELS)));
+	snd_interval_refine_set(hw_param_interval(params, SND_PCM_HW_PARAM_RATE),
+				snd_interval_value(hw_param_interval(hw_params, SND_PCM_HW_PARAM_RATE)));
+	snd_interval_refine_set(hw_param_interval(params, SND_PCM_HW_PARAM_BUFFER_SIZE),
+				snd_interval_value(hw_param_interval(hw_params, SND_PCM_HW_PARAM_BUFFER_SIZE)));
+	snd_interval_refine_set(hw_param_interval(params, SND_PCM_HW_PARAM_BUFFER_TIME),
+				snd_interval_value(hw_param_interval(hw_params, SND_PCM_HW_PARAM_BUFFER_TIME)));
+	snd_interval_refine_set(hw_param_interval(params, SND_PCM_HW_PARAM_PERIOD_SIZE),
+				snd_interval_value(hw_param_interval(hw_params, SND_PCM_HW_PARAM_PERIOD_SIZE)));
+	snd_interval_refine_set(hw_param_interval(params, SND_PCM_HW_PARAM_PERIOD_TIME),
+				snd_interval_value(hw_param_interval(hw_params, SND_PCM_HW_PARAM_PERIOD_TIME)));
+	snd_interval_refine_set(hw_param_interval(params, SND_PCM_HW_PARAM_PERIODS),
+				snd_interval_value(hw_param_interval(hw_params, SND_PCM_HW_PARAM_PERIODS)));
 	return 0;
 }
 
-- 
2.47.1