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https://gitlab.freedesktop.org/pipewire/pipewire.git
synced 2025-10-29 05:40:27 -04:00
Add support for mappable buffers in mixer-dsp
This commit is contained in:
Gabriel Golfetti
Wim Taymans
parent
fe78e80614
commit
df2f36ad8f
2 changed files with 98 additions and 25 deletions
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@ -3176,6 +3176,7 @@ impl_node_port_use_buffers(void *object,
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struct impl *this = object;
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struct port *port;
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uint32_t i, j, maxsize;
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int res;
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spa_return_val_if_fail(this != NULL, -EINVAL);
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@ -3186,12 +3187,16 @@ impl_node_port_use_buffers(void *object,
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spa_log_debug(this->log, "%p: use buffers %d on port %d:%d",
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this, n_buffers, direction, port_id);
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clear_buffers(this, port);
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if (n_buffers > 0 && !port->have_format) {
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res = -EIO;
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goto error;
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}
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if (n_buffers > MAX_BUFFERS) {
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res = -ENOSPC;
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goto error;
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}
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if (n_buffers > 0 && !port->have_format)
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return -EIO;
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if (n_buffers > MAX_BUFFERS)
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return -ENOSPC;
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clear_buffers(this, port);
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maxsize = this->quantum_limit * sizeof(float);
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@ -3200,6 +3205,11 @@ impl_node_port_use_buffers(void *object,
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uint32_t n_datas = buffers[i]->n_datas;
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struct spa_data *d = buffers[i]->datas;
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if (n_datas > MAX_DATAS) {
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res = -ENOSPC;
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goto error;
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}
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b = &port->buffers[i];
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b->id = i;
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b->flags = 0;
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@ -3224,7 +3234,8 @@ impl_node_port_use_buffers(void *object,
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if (data == MAP_FAILED) {
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spa_log_error(this->log, "%p: mmap failed %d on buffer %d %d %p: %m",
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this, j, i, d[j].type, data);
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return -EINVAL;
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res = -EINVAL;
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goto error;
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}
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SPA_FLAG_SET(b->flags, BUFFER_FLAG_MAPPED);
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spa_log_debug(this->log, "%p: mmap %d on buffer %d %d %p %p",
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@ -3233,7 +3244,8 @@ impl_node_port_use_buffers(void *object,
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if (data == NULL) {
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spa_log_error(this->log, "%p: invalid memory %d on buffer %d %d %p",
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this, j, i, d[j].type, data);
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return -EINVAL;
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res = -EINVAL;
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goto error;
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} else if (!SPA_IS_ALIGNED(data, this->max_align)) {
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spa_log_warn(this->log, "%p: memory %d on buffer %d not aligned",
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this, j, i);
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@ -3245,11 +3257,14 @@ impl_node_port_use_buffers(void *object,
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}
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if (direction == SPA_DIRECTION_OUTPUT)
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queue_buffer(this, port, i);
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port->n_buffers++;
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}
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port->maxsize = maxsize;
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port->n_buffers = n_buffers;
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return 0;
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error:
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clear_buffers(this, port);
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return res;
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}
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struct io_data {
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@ -5,6 +5,7 @@
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#include <errno.h>
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#include <string.h>
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#include <stdio.h>
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#include <sys/mman.h>
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#include <spa/support/plugin.h>
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#include <spa/support/log.h>
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@ -27,6 +28,7 @@
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SPA_LOG_TOPIC_DEFINE_STATIC(log_topic, "spa.mixer-dsp");
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#define MAX_BUFFERS 64
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#define MAX_DATAS SPA_AUDIO_MAX_CHANNELS
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#define MAX_PORTS 512
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#define MAX_ALIGN MIX_OPS_MAX_ALIGN
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@ -47,12 +49,15 @@ static void port_props_reset(struct port_props *props)
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struct buffer {
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uint32_t id;
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#define BUFFER_FLAG_QUEUED (1 << 0)
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#define BUFFER_FLAG_MAPPED (1 << 1)
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uint32_t flags;
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struct spa_list link;
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struct spa_buffer *buffer;
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struct spa_meta_header *h;
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struct spa_buffer buf;
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void *datas[MAX_DATAS];
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};
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struct port {
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@ -450,11 +455,25 @@ next:
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static int clear_buffers(struct impl *this, struct port *port)
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{
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if (port->n_buffers > 0) {
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spa_log_debug(this->log, "%p: clear buffers %p", this, port);
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port->n_buffers = 0;
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spa_list_init(&port->queue);
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uint32_t i, j;
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spa_log_debug(this->log, "%p: clear buffers %p %d", this, port, port->n_buffers);
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for (i = 0; i < port->n_buffers; i++) {
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struct buffer *b = &port->buffers[i];
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if (SPA_FLAG_IS_SET(b->flags, BUFFER_FLAG_MAPPED)) {
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for (j = 0; j < b->buffer->n_datas; j++) {
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if (b->datas[j]) {
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spa_log_debug(this->log, "%p: unmap buffer %d data %d %p",
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this, i, j, b->datas[j]);
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munmap(b->datas[j], b->buffer->datas[j].maxsize);
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b->datas[j] = NULL;
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}
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}
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SPA_FLAG_CLEAR(b->flags, BUFFER_FLAG_MAPPED);
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}
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}
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port->n_buffers = 0;
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spa_list_init(&port->queue);
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return 0;
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}
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@ -581,7 +600,8 @@ impl_node_port_use_buffers(void *object,
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{
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struct impl *this = object;
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struct port *port;
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uint32_t i;
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uint32_t i, j;
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int res;
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spa_return_val_if_fail(this != NULL, -EINVAL);
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@ -594,17 +614,27 @@ impl_node_port_use_buffers(void *object,
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spa_return_val_if_fail(!this->started || port->io == NULL, -EIO);
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clear_buffers(this, port);
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if (n_buffers > 0 && !port->have_format) {
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res = -EIO;
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goto error;
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}
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if (n_buffers > MAX_BUFFERS) {
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res = -ENOSPC;
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goto error;
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}
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if (n_buffers > 0 && !port->have_format)
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return -EIO;
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if (n_buffers > MAX_BUFFERS)
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return -ENOSPC;
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clear_buffers(this, port);
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for (i = 0; i < n_buffers; i++) {
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struct buffer *b;
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uint32_t n_datas = buffers[i]->n_datas;
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struct spa_data *d = buffers[i]->datas;
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if (n_datas > MAX_DATAS) {
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res = -ENOSPC;
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goto error;
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}
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b = &port->buffers[i];
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b->buffer = buffers[i];
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b->flags = 0;
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@ -612,23 +642,51 @@ impl_node_port_use_buffers(void *object,
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b->h = spa_buffer_find_meta_data(buffers[i], SPA_META_Header, sizeof(*b->h));
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b->buf = *buffers[i];
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if (d[0].data == NULL) {
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spa_log_error(this->log, "%p: invalid memory on buffer %d", this, i);
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return -EINVAL;
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}
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if (!SPA_IS_ALIGNED(d[0].data, this->max_align)) {
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spa_log_warn(this->log, "%p: memory on buffer %d not aligned", this, i);
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for (j = 0; j < n_datas; j++) {
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void *data = d[j].data;
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if (data == NULL && SPA_FLAG_IS_SET(d[j].flags, SPA_DATA_FLAG_MAPPABLE)) {
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int prot = 0;
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if (SPA_FLAG_IS_SET(d[j].flags, SPA_DATA_FLAG_READABLE))
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prot |= PROT_READ;
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if (SPA_FLAG_IS_SET(d[j].flags, SPA_DATA_FLAG_WRITABLE))
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prot |= PROT_WRITE;
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data = mmap(NULL, d[j].maxsize,
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prot, MAP_SHARED, d[j].fd, d[j].mapoffset);
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if (data == MAP_FAILED) {
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spa_log_error(this->log, "%p: mmap failed %d on buffer %d %d %p: %m",
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this, j, i, d[j].type, data);
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res = -EINVAL;
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goto error;
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}
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SPA_FLAG_SET(b->flags, BUFFER_FLAG_MAPPED);
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spa_log_debug(this->log, "%p: mmap %d on buffer %d %d %p %p",
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this, j, i, d[j].type, data, b);
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}
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if (data == NULL) {
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spa_log_error(this->log, "%p: invalid memory %d on buffer %d %d %p",
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this, j, i, d[j].type, data);
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res = -EINVAL;
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goto error;
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} else if (!SPA_IS_ALIGNED(data, this->max_align)) {
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spa_log_warn(this->log, "%p: memory %d on buffer %d not aligned",
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this, j, i);
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}
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d[j].data = b->datas[j] = data;
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}
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if (direction == SPA_DIRECTION_OUTPUT)
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queue_buffer(this, port, b);
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port->n_buffers++;
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spa_log_debug(this->log, "%p: port %d:%d buffer:%d n_data:%d data:%p maxsize:%d",
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this, direction, port_id, i,
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buffers[i]->n_datas, d[0].data, d[0].maxsize);
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}
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port->n_buffers = n_buffers;
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return 0;
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error:
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clear_buffers(this, port);
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return res;
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}
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struct io_info {
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