gstreamer/gst-libs/gst/vulkan/gstvkdevice.c

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/*
* GStreamer
* Copyright (C) 2015 Matthew Waters <matthew@centricular.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "gstvkdevice.h"
#include "gstvkdebug.h"
#include <string.h>
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/**
* SECTION:vkdevice
* @title: GstVulkanDevice
* @short_description: Vulkan device
* @see_also: #GstVulkanInstance, #GstVulkanPhysicalDevice
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*
* A #GstVulkanDevice encapsulates a VkDevice
*/
#define GST_CAT_DEFAULT gst_vulkan_device_debug
GST_DEBUG_CATEGORY (GST_CAT_DEFAULT);
GST_DEBUG_CATEGORY_STATIC (GST_CAT_CONTEXT);
#define GET_PRIV(o) (gst_vulkan_device_get_instance_private (o))
enum
{
PROP_0,
PROP_INSTANCE,
PROP_PHYSICAL_DEVICE,
};
static void gst_vulkan_device_finalize (GObject * object);
struct _GstVulkanDevicePrivate
{
gboolean opened;
guint queue_family_id;
guint n_queues;
};
static void
_init_debug (void)
{
static volatile gsize init;
if (g_once_init_enter (&init)) {
GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "vulkandevice", 0,
"Vulkan Device");
GST_DEBUG_CATEGORY_GET (GST_CAT_CONTEXT, "GST_CONTEXT");
g_once_init_leave (&init, 1);
}
}
#define gst_vulkan_device_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE (GstVulkanDevice, gst_vulkan_device, GST_TYPE_OBJECT,
G_ADD_PRIVATE (GstVulkanDevice);
_init_debug ());
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/**
* gst_vulkan_device_new:
* @physical_device: the associated #GstVulkanPhysicalDevice
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*
* Returns: (transfer full): a new #GstVulkanDevice
*
* Since: 1.18
*/
GstVulkanDevice *
gst_vulkan_device_new (GstVulkanPhysicalDevice * physical_device)
{
GstVulkanDevice *device;
g_return_val_if_fail (GST_IS_VULKAN_PHYSICAL_DEVICE (physical_device), NULL);
device = g_object_new (GST_TYPE_VULKAN_DEVICE, "physical-device",
physical_device, NULL);
gst_object_ref_sink (device);
return device;
}
/**
* gst_vulkan_device_new_with_index:
* @instance: the associated #GstVulkanInstance
* @device_index: the device index to create the new #GstVulkanDevice from
*
* Returns: (transfer full): a new #GstVulkanDevice
*
* Since: 1.18
*/
GstVulkanDevice *
gst_vulkan_device_new_with_index (GstVulkanInstance * instance,
guint device_index)
{
GstVulkanPhysicalDevice *physical;
GstVulkanDevice *device;
g_return_val_if_fail (GST_IS_VULKAN_INSTANCE (instance), NULL);
physical = gst_vulkan_physical_device_new (instance, device_index);
device = gst_vulkan_device_new (physical);
gst_object_unref (physical);
return device;
}
static void
gst_vulkan_device_set_property (GObject * object, guint prop_id,
const GValue * value, GParamSpec * pspec)
{
GstVulkanDevice *device = GST_VULKAN_DEVICE (object);
switch (prop_id) {
case PROP_PHYSICAL_DEVICE:
device->physical_device = g_value_dup_object (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_vulkan_device_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec)
{
GstVulkanDevice *device = GST_VULKAN_DEVICE (object);
switch (prop_id) {
case PROP_INSTANCE:
g_value_set_object (value, device->instance);
break;
case PROP_PHYSICAL_DEVICE:
g_value_set_object (value, device->physical_device);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gst_vulkan_device_init (GstVulkanDevice * device)
{
}
static void
gst_vulkan_device_constructed (GObject * object)
{
GstVulkanDevice *device = GST_VULKAN_DEVICE (object);
g_object_get (device->physical_device, "instance", &device->instance, NULL);
}
static void
gst_vulkan_device_class_init (GstVulkanDeviceClass * device_class)
{
GObjectClass *gobject_class = (GObjectClass *) device_class;
gobject_class->set_property = gst_vulkan_device_set_property;
gobject_class->get_property = gst_vulkan_device_get_property;
gobject_class->finalize = gst_vulkan_device_finalize;
gobject_class->constructed = gst_vulkan_device_constructed;
g_object_class_install_property (gobject_class, PROP_INSTANCE,
g_param_spec_object ("instance", "Instance",
"Associated Vulkan Instance",
GST_TYPE_VULKAN_INSTANCE, G_PARAM_READABLE | G_PARAM_STATIC_STRINGS));
g_object_class_install_property (gobject_class, PROP_PHYSICAL_DEVICE,
g_param_spec_object ("physical-device", "Physical Device",
"Associated Vulkan Physical Device",
GST_TYPE_VULKAN_PHYSICAL_DEVICE,
G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS));
}
static void
gst_vulkan_device_finalize (GObject * object)
{
GstVulkanDevice *device = GST_VULKAN_DEVICE (object);
if (device->device) {
vkDeviceWaitIdle (device->device);
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vkDestroyDevice (device->device, NULL);
}
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device->device = VK_NULL_HANDLE;
gst_clear_object (&device->physical_device);
gst_clear_object (&device->instance);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
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/**
* gst_vulkan_device_open:
* @device: a #GstVulkanDevice
* @error: a #GError
*
* Attempts to create the internal #VkDevice object.
*
* Returns: whether a vulkan device could be created
*
* Since: 1.18
*/
gboolean
gst_vulkan_device_open (GstVulkanDevice * device, GError ** error)
{
GstVulkanDevicePrivate *priv = GET_PRIV (device);
const char *extension_names[64];
uint32_t enabled_extension_count = 0;
gboolean have_swapchain_ext;
VkPhysicalDevice gpu;
VkResult err;
guint i;
g_return_val_if_fail (GST_IS_VULKAN_DEVICE (device), FALSE);
GST_OBJECT_LOCK (device);
if (priv->opened) {
GST_OBJECT_UNLOCK (device);
return TRUE;
}
gpu = gst_vulkan_device_get_physical_device (device);
have_swapchain_ext = 0;
enabled_extension_count = 0;
memset (extension_names, 0, sizeof (extension_names));
for (i = 0; i < device->physical_device->n_device_extensions; i++) {
GST_TRACE_OBJECT (device, "checking device extension %s",
device->physical_device->device_extensions[i].extensionName);
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if (!strcmp (VK_KHR_SWAPCHAIN_EXTENSION_NAME,
device->physical_device->device_extensions[i].extensionName)) {
have_swapchain_ext = TRUE;
extension_names[enabled_extension_count++] =
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(gchar *) VK_KHR_SWAPCHAIN_EXTENSION_NAME;
}
g_assert (enabled_extension_count < 64);
}
if (!have_swapchain_ext) {
g_set_error_literal (error, GST_VULKAN_ERROR,
VK_ERROR_EXTENSION_NOT_PRESENT,
"Failed to find required extension, \"" VK_KHR_SWAPCHAIN_EXTENSION_NAME
"\"");
goto error;
}
/* FIXME: allow overriding/selecting */
for (i = 0; i < device->physical_device->n_queue_families; i++) {
if (device->physical_device->
queue_family_props[i].queueFlags & VK_QUEUE_GRAPHICS_BIT)
break;
}
if (i >= device->physical_device->n_queue_families) {
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g_set_error (error, GST_VULKAN_ERROR, VK_ERROR_INITIALIZATION_FAILED,
"Failed to find a compatible queue family");
goto error;
}
priv->queue_family_id = i;
priv->n_queues = 1;
{
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VkDeviceQueueCreateInfo queue_info = { 0, };
VkDeviceCreateInfo device_info = { 0, };
gfloat queue_priority = 0.5;
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queue_info.sType = VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO;
queue_info.pNext = NULL;
queue_info.queueFamilyIndex = priv->queue_family_id;
queue_info.queueCount = priv->n_queues;
queue_info.pQueuePriorities = &queue_priority;
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device_info.sType = VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO;
device_info.pNext = NULL;
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device_info.queueCreateInfoCount = 1;
device_info.pQueueCreateInfos = &queue_info;
device_info.enabledLayerCount = 0;
device_info.ppEnabledLayerNames = NULL;
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device_info.enabledExtensionCount = enabled_extension_count;
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device_info.ppEnabledExtensionNames = (const char *const *) extension_names;
device_info.pEnabledFeatures = NULL;
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err = vkCreateDevice (gpu, &device_info, NULL, &device->device);
if (gst_vulkan_error_to_g_error (err, error, "vkCreateDevice") < 0) {
goto error;
}
}
priv->opened = TRUE;
GST_OBJECT_UNLOCK (device);
return TRUE;
error:
{
GST_OBJECT_UNLOCK (device);
return FALSE;
}
}
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/**
* gst_vulkan_device_get_queue:
* @device: a #GstVulkanDevice
* @queue_family: a queue family to retrieve
* @queue_i: index of the family to retrieve
*
* Returns: (transfer full): a new #GstVulkanQueue
*
* Since: 1.18
*/
GstVulkanQueue *
gst_vulkan_device_get_queue (GstVulkanDevice * device, guint32 queue_family,
guint32 queue_i)
{
GstVulkanDevicePrivate *priv = GET_PRIV (device);
GstVulkanQueue *ret;
g_return_val_if_fail (GST_IS_VULKAN_DEVICE (device), NULL);
g_return_val_if_fail (device->device != NULL, NULL);
g_return_val_if_fail (priv->opened, NULL);
g_return_val_if_fail (queue_family < priv->n_queues, NULL);
g_return_val_if_fail (queue_i <
device->physical_device->queue_family_props[queue_family].queueCount,
NULL);
ret = g_object_new (GST_TYPE_VULKAN_QUEUE, NULL);
gst_object_ref_sink (ret);
ret->device = gst_object_ref (device);
ret->family = queue_family;
ret->index = queue_i;
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vkGetDeviceQueue (device->device, queue_family, queue_i, &ret->queue);
return ret;
}
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/**
* gst_vulkan_device_foreach_queue:
* @device: a #GstVulkanDevice
* @func: (scope call): a #GstVulkanDeviceForEachQueueFunc to run for each #GstVulkanQueue
* @user_data: (closure func): user data to pass to each call of @func
*
* Iterate over each queue family available on #GstVulkanDevice
*
* Since: 1.18
*/
void
gst_vulkan_device_foreach_queue (GstVulkanDevice * device,
GstVulkanDeviceForEachQueueFunc func, gpointer user_data)
{
GstVulkanDevicePrivate *priv = GET_PRIV (device);
gboolean done = FALSE;
guint i;
for (i = 0; i < priv->n_queues; i++) {
GstVulkanQueue *queue =
gst_vulkan_device_get_queue (device, priv->queue_family_id, i);
if (!func (device, queue, user_data))
done = TRUE;
gst_object_unref (queue);
if (done)
break;
}
}
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/**
* gst_vulkan_device_get_proc_address:
* @device: a #GstVulkanDevice
* @name: name of the function to retrieve
*
* Performs vkGetDeviceProcAddr() with @device and @name
*
* Returns: the function pointer for @name or %NULL
*
* Since: 1.18
*/
gpointer
gst_vulkan_device_get_proc_address (GstVulkanDevice * device,
const gchar * name)
{
g_return_val_if_fail (GST_IS_VULKAN_DEVICE (device), NULL);
g_return_val_if_fail (device->device != NULL, NULL);
g_return_val_if_fail (name != NULL, NULL);
GST_TRACE_OBJECT (device, "%s", name);
return vkGetDeviceProcAddr (device->device, name);
}
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/**
* gst_vulkan_device_get_instance:
* @device: a #GstVulkanDevice
*
* Returns: (transfer full): the #GstVulkanInstance used to create this @device
*
* Since: 1.18
*/
GstVulkanInstance *
gst_vulkan_device_get_instance (GstVulkanDevice * device)
{
g_return_val_if_fail (GST_IS_VULKAN_DEVICE (device), NULL);
return device->instance ? gst_object_ref (device->instance) : NULL;
}
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/**
* gst_vulkan_device_get_physical_device: (skip)
* @device: a #GstVulkanDevice
*
* Returns: The VkPhysicalDevice used to create @device
*
* Since: 1.18
*/
VkPhysicalDevice
gst_vulkan_device_get_physical_device (GstVulkanDevice * device)
{
g_return_val_if_fail (GST_IS_VULKAN_DEVICE (device), NULL);
return gst_vulkan_physical_device_get_handle (device->physical_device);
}
/**
* gst_context_set_vulkan_device:
* @context: a #GstContext
* @device: a #GstVulkanDevice
*
* Sets @device on @context
*
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* Since: 1.18
*/
void
gst_context_set_vulkan_device (GstContext * context, GstVulkanDevice * device)
{
GstStructure *s;
g_return_if_fail (context != NULL);
g_return_if_fail (gst_context_is_writable (context));
if (device)
GST_CAT_LOG (GST_CAT_CONTEXT,
"setting GstVulkanDevice(%" GST_PTR_FORMAT ") on context(%"
GST_PTR_FORMAT ")", device, context);
s = gst_context_writable_structure (context);
gst_structure_set (s, GST_VULKAN_DEVICE_CONTEXT_TYPE_STR,
GST_TYPE_VULKAN_DEVICE, device, NULL);
}
/**
* gst_context_get_vulkan_device:
* @context: a #GstContext
* @device: resulting #GstVulkanDevice
*
* Returns: Whether @device was in @context
*
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* Since: 1.18
*/
gboolean
gst_context_get_vulkan_device (GstContext * context, GstVulkanDevice ** device)
{
const GstStructure *s;
gboolean ret;
g_return_val_if_fail (device != NULL, FALSE);
g_return_val_if_fail (context != NULL, FALSE);
s = gst_context_get_structure (context);
ret = gst_structure_get (s, GST_VULKAN_DEVICE_CONTEXT_TYPE_STR,
GST_TYPE_VULKAN_DEVICE, device, NULL);
GST_CAT_LOG (GST_CAT_CONTEXT, "got GstVulkanDevice(%" GST_PTR_FORMAT
") from context(%" GST_PTR_FORMAT ")", *device, context);
return ret;
}
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/**
* gst_vulkan_device_handle_context_query:
* @element: a #GstElement
* @query: a #GstQuery of type #GST_QUERY_CONTEXT
* @device: the #GstVulkanDevice
*
* If a #GstVulkanDevice is requested in @query, sets @device as the reply.
*
* Intended for use with element query handlers to respond to #GST_QUERY_CONTEXT
* for a #GstVulkanDevice.
*
* Returns: whether @query was responded to with @device
*
* Since: 1.18
*/
gboolean
gst_vulkan_device_handle_context_query (GstElement * element, GstQuery * query,
GstVulkanDevice * device)
{
gboolean res = FALSE;
const gchar *context_type;
GstContext *context, *old_context;
g_return_val_if_fail (element != NULL, FALSE);
g_return_val_if_fail (query != NULL, FALSE);
g_return_val_if_fail (GST_QUERY_TYPE (query) == GST_QUERY_CONTEXT, FALSE);
if (!device)
return FALSE;
gst_query_parse_context_type (query, &context_type);
if (g_strcmp0 (context_type, GST_VULKAN_DEVICE_CONTEXT_TYPE_STR) == 0) {
gst_query_parse_context (query, &old_context);
if (old_context)
context = gst_context_copy (old_context);
else
context = gst_context_new (GST_VULKAN_DEVICE_CONTEXT_TYPE_STR, TRUE);
gst_context_set_vulkan_device (context, device);
gst_query_set_context (query, context);
gst_context_unref (context);
res = device != NULL;
}
return res;
}
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/**
* gst_vulkan_device_run_context_query:
* @element: a #GstElement
* @device: (inout): a #GstVulkanDevice
*
* Attempt to retrieve a #GstVulkanDevice using #GST_QUERY_CONTEXT from the
* surrounding elements of @element.
*
* Returns: whether @device contains a valid #GstVulkanDevice
*
* Since: 1.18
*/
gboolean
gst_vulkan_device_run_context_query (GstElement * element,
GstVulkanDevice ** device)
{
GstQuery *query;
g_return_val_if_fail (GST_IS_ELEMENT (element), FALSE);
g_return_val_if_fail (device != NULL, FALSE);
_init_debug ();
if (*device && GST_IS_VULKAN_DEVICE (*device))
return TRUE;
if ((query =
gst_vulkan_local_context_query (element,
GST_VULKAN_DEVICE_CONTEXT_TYPE_STR))) {
GstContext *context;
gst_query_parse_context (query, &context);
if (context)
gst_context_get_vulkan_device (context, device);
gst_query_unref (query);
}
GST_DEBUG_OBJECT (element, "found device %p", *device);
if (*device)
return TRUE;
return FALSE;
}