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core: improve alignment

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Use the CPU alignment to align memory of allocated buffers. This makes
it more likely that all CPU optimizations can be done.
This commit is contained in:
Wim Taymans 2019-10-17 09:34:27 +02:00
parent c8ffcaaefe
commit 7798cf7364
6 changed files with 53 additions and 13 deletions
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9
src/pipewire/buffers.c
View file

@ -37,7 +37,8 @@
#define NAME "buffers"
#define MAX_BUFFERS 64
#define MAX_ALIGN 32
#define MAX_BUFFERS 64
struct port {
struct spa_node *node;
@ -246,8 +247,12 @@ int pw_buffers_negotiate(struct pw_core *core, uint32_t flags,
else
max_buffers = MAX_BUFFERS;
if ((str = pw_properties_get(core->properties, "cpu.max-align")) != NULL)
align = pw_properties_parse_int(str);
else
align = MAX_ALIGN;
minsize = stride = 0;
align = 8;
param = find_param(params, n_params, SPA_TYPE_OBJECT_ParamBuffers);
if (param) {
uint32_t qmax_buffers = max_buffers,

5
src/pipewire/core.c
View file

@ -29,6 +29,7 @@
#include <pipewire/log.h>
#include <spa/support/cpu.h>
#include <spa/support/dbus.h>
#include <spa/node/utils.h>
#include <spa/utils/names.h>
@ -479,6 +480,7 @@ struct pw_core *pw_core_new(struct pw_loop *main_loop,
void *dbus_iface = NULL;
uint32_t n_support;
struct pw_properties *pr;
struct spa_cpu *cpu;
int res = 0;
impl = calloc(1, sizeof(struct impl) + user_data_size);
@ -526,6 +528,9 @@ struct pw_core *pw_core_new(struct pw_loop *main_loop,
this->support[n_support++] = SPA_SUPPORT_INIT(SPA_TYPE_INTERFACE_DataSystem, this->data_system);
this->support[n_support++] = SPA_SUPPORT_INIT(SPA_TYPE_INTERFACE_DataLoop, this->data_loop->loop);
if ((cpu = spa_support_find(this->support, n_support, SPA_TYPE_INTERFACE_CPU)) != NULL)
pw_properties_setf(properties, "cpu.max-align", "%u", spa_cpu_get_max_align(cpu));
lib = pw_properties_get(properties, PW_KEY_LIBRARY_NAME_DBUS);
if (lib == NULL)
lib = "support/libspa-dbus";