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vulkan: implement GstContext helpers

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Based off libgstgl's implementation
This commit is contained in:
Matthew Waters 2015-12-07 17:33:43 +11:00
parent 75aaf184bb
commit 996200ffc0
11 changed files with 491 additions and 23 deletions
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1
ext/vulkan/Makefile.am
View file

@ -31,6 +31,7 @@ noinst_HEADERS = \
vksink.h \
vkswapper.h \
vkutils.h \
vkutils_private.h \
vkwindow.h
libgstvulkan_la_CFLAGS = \

1
ext/vulkan/vk.h
View file

@ -41,5 +41,6 @@
#include "vkswapper.h"
#include "vkmemory.h"
#include "vkimagememory.h"
#include "vkutils.h"
#endif /* _VK_H_ */

2
ext/vulkan/vkdevice.c
View file

@ -23,7 +23,7 @@
#endif
#include "vkdevice.h"
#include "vkutils.h"
#include "vkutils_private.h"
#include <string.h>

59
ext/vulkan/vkdisplay.c
View file

@ -34,6 +34,7 @@
#include "xcb/vkdisplay_xcb.h"
#endif
GST_DEBUG_CATEGORY_STATIC (GST_CAT_CONTEXT);
#define GST_CAT_DEFAULT gst_vulkan_display_debug
GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
@ -45,6 +46,7 @@ _init_debug (void)
if (g_once_init_enter (&_init)) {
GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "vulkandisplay", 0,
"Vulkan display");
GST_DEBUG_CATEGORY_GET (GST_CAT_CONTEXT, "GST_CONTEXT");
g_once_init_leave (&_init, 1);
}
}
@ -323,3 +325,60 @@ gst_vulkan_display_remove_window (GstVulkanDisplay * display,
return ret;
}
/**
* gst_context_set_vulkan_display:
* @context: a #GstContext
* @display: a #GstVulkanDisplay
*
* Sets @display on @context
*
* Since: 1.10
*/
void
gst_context_set_vulkan_display (GstContext * context,
GstVulkanDisplay * display)
{
GstStructure *s;
g_return_if_fail (context != NULL);
g_return_if_fail (gst_context_is_writable (context));
if (display)
GST_CAT_LOG (GST_CAT_CONTEXT,
"setting GstVulkanDisplay(%" GST_PTR_FORMAT ") on context(%"
GST_PTR_FORMAT ")", display, context);
s = gst_context_writable_structure (context);
gst_structure_set (s, GST_VULKAN_DISPLAY_CONTEXT_TYPE_STR,
GST_TYPE_VULKAN_DISPLAY, display, NULL);
}
/**
* gst_context_get_vulkan_display:
* @context: a #GstContext
* @display: resulting #GstVulkanDisplay
*
* Returns: Whether @display was in @context
*
* Since: 1.10
*/
gboolean
gst_context_get_vulkan_display (GstContext * context,
GstVulkanDisplay ** display)
{
const GstStructure *s;
gboolean ret;
g_return_val_if_fail (display != NULL, FALSE);
g_return_val_if_fail (context != NULL, FALSE);
s = gst_context_get_structure (context);
ret = gst_structure_get (s, GST_VULKAN_DISPLAY_CONTEXT_TYPE_STR,
GST_TYPE_VULKAN_DISPLAY, display, NULL);
GST_CAT_LOG (GST_CAT_CONTEXT, "got GstVulkanDisplay(%" GST_PTR_FORMAT
") from context(%" GST_PTR_FORMAT ")", *display, context);
return ret;
}

20
ext/vulkan/vkdisplay.h
View file

@ -39,6 +39,8 @@ G_BEGIN_DECLS
#define GST_VULKAN_DISPLAY_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS((o), GST_TYPE_VULKAN_DISPLAY, GstVulkanDisplayClass))
GType gst_vulkan_display_get_type (void);
#define GST_VULKAN_DISPLAY_CONTEXT_TYPE_STR "gst.vulkan.display"
typedef enum
{
GST_VULKAN_DISPLAY_TYPE_NONE = 0,
@ -83,15 +85,21 @@ struct _GstVulkanDisplayClass
GstVulkanWindow * (*create_window) (GstVulkanDisplay * display);
};
GstVulkanDisplay *gst_vulkan_display_new (void);
GstVulkanDisplay * gst_vulkan_display_new (void);
gpointer gst_vulkan_display_get_handle (GstVulkanDisplay * display);
GstVulkanDisplayType gst_vulkan_display_get_handle_type (GstVulkanDisplay * display);
gpointer gst_vulkan_display_get_platform_handle (GstVulkanDisplay * display);
GstVulkanWindow * gst_vulkan_display_create_window (GstVulkanDisplay * display);
gpointer gst_vulkan_display_get_handle (GstVulkanDisplay * display);
GstVulkanDisplayType gst_vulkan_display_get_handle_type (GstVulkanDisplay * display);
gpointer gst_vulkan_display_get_platform_handle (GstVulkanDisplay * display);
GstVulkanWindow * gst_vulkan_display_create_window (GstVulkanDisplay * display);
gboolean gst_context_get_vulkan_display (GstContext * context,
GstVulkanDisplay ** display);
void gst_context_set_vulkan_display (GstContext * context,
GstVulkanDisplay * display);
/* GstVulkanWindow usage only */
gboolean gst_vulkan_display_remove_window (GstVulkanDisplay * display, GstVulkanWindow * window);
gboolean gst_vulkan_display_remove_window (GstVulkanDisplay * display, GstVulkanWindow * window);
G_END_DECLS

63
ext/vulkan/vkinstance.c
View file

@ -23,7 +23,7 @@
#endif
#include "vkinstance.h"
#include "vkutils.h"
#include "vkutils_private.h"
#include <string.h>
@ -44,13 +44,15 @@ static const char *instance_validation_layers[] = {
#define GST_CAT_DEFAULT gst_vulkan_instance_debug
GST_DEBUG_CATEGORY (GST_CAT_DEFAULT);
GST_DEBUG_CATEGORY (GST_VULKAN_DEBUG_CAT);
GST_DEBUG_CATEGORY (GST_CAT_CONTEXT);
#define gst_vulkan_instance_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE (GstVulkanInstance, gst_vulkan_instance,
GST_TYPE_OBJECT, GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT,
"vulkaninstance", 0, "Vulkan Instance");
GST_DEBUG_CATEGORY_INIT (GST_VULKAN_DEBUG_CAT,
"vulkandebug", 0, "Vulkan Debug"));
"vulkandebug", 0, "Vulkan Debug");
GST_DEBUG_CATEGORY_GET (GST_CAT_CONTEXT, "GST_CONTEXT"));
static void gst_vulkan_instance_finalize (GObject * object);
@ -332,3 +334,60 @@ gst_vulkan_instance_get_proc_address (GstVulkanInstance * instance,
return vkGetInstanceProcAddr (instance->instance, name);
}
/**
* gst_context_set_vulkan_instance:
* @context: a #GstContext
* @instance: a #GstVulkanInstance
*
* Sets @instance on @context
*
* Since: 1.10
*/
void
gst_context_set_vulkan_instance (GstContext * context,
GstVulkanInstance * instance)
{
GstStructure *s;
g_return_if_fail (context != NULL);
g_return_if_fail (gst_context_is_writable (context));
if (instance)
GST_CAT_LOG (GST_CAT_CONTEXT,
"setting GstVulkanInstance(%" GST_PTR_FORMAT ") on context(%"
GST_PTR_FORMAT ")", instance, context);
s = gst_context_writable_structure (context);
gst_structure_set (s, GST_VULKAN_INSTANCE_CONTEXT_TYPE_STR,
GST_TYPE_VULKAN_INSTANCE, instance, NULL);
}
/**
* gst_context_get_vulkan_instance:
* @context: a #GstContext
* @instance: resulting #GstVulkanInstance
*
* Returns: Whether @instance was in @context
*
* Since: 1.10
*/
gboolean
gst_context_get_vulkan_instance (GstContext * context,
GstVulkanInstance ** instance)
{
const GstStructure *s;
gboolean ret;
g_return_val_if_fail (instance != NULL, FALSE);
g_return_val_if_fail (context != NULL, FALSE);
s = gst_context_get_structure (context);
ret = gst_structure_get (s, GST_VULKAN_INSTANCE_CONTEXT_TYPE_STR,
GST_TYPE_VULKAN_INSTANCE, instance, NULL);
GST_CAT_LOG (GST_CAT_CONTEXT, "got GstVulkanInstance(%" GST_PTR_FORMAT
") from context(%" GST_PTR_FORMAT ")", *instance, context);
return ret;
}

7
ext/vulkan/vkinstance.h
View file

@ -33,6 +33,8 @@ G_BEGIN_DECLS
#define GST_VULKAN_INSTANCE_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS((o), GST_TYPE_VULKAN_INSTANCE, GstVulkanInstanceClass))
GType gst_vulkan_instance_get_type (void);
#define GST_VULKAN_INSTANCE_CONTEXT_TYPE_STR "gst.vulkan.instance"
struct _GstVulkanInstance
{
GstObject parent;
@ -61,6 +63,11 @@ gboolean gst_vulkan_instance_open (GstVulkanInstance *
gpointer gst_vulkan_instance_get_proc_address (GstVulkanInstance * instance,
const gchar * name);
void gst_context_set_vulkan_instance (GstContext * context,
GstVulkanInstance * instance);
gboolean gst_context_get_vulkan_instance (GstContext * context,
GstVulkanInstance ** instance);
G_END_DECLS
#endif /* _VK_INSTANCE_H_ */

33
ext/vulkan/vksink.c
View file

@ -202,22 +202,32 @@ gst_vulkan_sink_get_property (GObject * object, guint prop_id,
static gboolean
gst_vulkan_sink_query (GstBaseSink * bsink, GstQuery * query)
{
// GstVulkanSink *vk_sink = GST_VULKAN_SINK (bsink);
GstVulkanSink *vk_sink = GST_VULKAN_SINK (bsink);
gboolean res = FALSE;
switch (GST_QUERY_TYPE (query)) {
case GST_QUERY_CONTEXT:{
res = gst_vulkan_handle_context_query (GST_ELEMENT (vk_sink), query,
&vk_sink->display, &vk_sink->instance);
if (res)
return res;
break;
}
default:
res = GST_BASE_SINK_CLASS (parent_class)->query (bsink, query);
break;
}
return res;
return GST_BASE_SINK_CLASS (parent_class)->query (bsink, query);
}
static void
gst_vulkan_sink_set_context (GstElement * element, GstContext * context)
{
// GstVulkanSink *vk_sink = GST_VULKAN_SINK (element);
GstVulkanSink *vk_sink = GST_VULKAN_SINK (element);
gst_vulkan_handle_set_context (element, context, &vk_sink->display,
&vk_sink->instance);
GST_ELEMENT_CLASS (parent_class)->set_context (element, context);
}
@ -235,12 +245,19 @@ gst_vulkan_sink_change_state (GstElement * element, GstStateChange transition)
switch (transition) {
case GST_STATE_CHANGE_NULL_TO_READY:
vk_sink->instance = gst_vulkan_instance_new ();
if (!gst_vulkan_ensure_element_data (element, &vk_sink->display,
&vk_sink->instance)) {
GST_ELEMENT_ERROR (vk_sink, RESOURCE, NOT_FOUND,
("Failed to retreive vulkan instance/display"), (NULL));
return GST_STATE_CHANGE_FAILURE;
}
if (!gst_vulkan_instance_open (vk_sink->instance, &error)) {
GST_ELEMENT_ERROR (vk_sink, RESOURCE, NOT_FOUND,
("Failed to create vulkan instance"), ("%s", error->message));
return GST_STATE_CHANGE_FAILURE;
}
vk_sink->device = gst_vulkan_device_new (vk_sink->instance);
if (!gst_vulkan_device_open (vk_sink->device, &error)) {
GST_ELEMENT_ERROR (vk_sink, RESOURCE, NOT_FOUND,
@ -248,12 +265,6 @@ gst_vulkan_sink_change_state (GstElement * element, GstStateChange transition)
return GST_STATE_CHANGE_FAILURE;
}
if (!(vk_sink->display = gst_vulkan_display_new ())) {
GST_ELEMENT_ERROR (vk_sink, RESOURCE, NOT_FOUND,
("Failed to connect to the window sysytem"), (NULL));
return GST_STATE_CHANGE_FAILURE;
}
if (!(vk_sink->window =
gst_vulkan_display_create_window (vk_sink->display))) {
GST_ELEMENT_ERROR (vk_sink, RESOURCE, NOT_FOUND,

282
ext/vulkan/vkutils.c
View file

@ -23,6 +23,9 @@
#endif
#include "vkutils.h"
#include "vkutils_private.h"
GST_DEBUG_CATEGORY_STATIC (GST_CAT_CONTEXT);
gboolean
_check_for_all_layers (uint32_t check_count, const char **check_names,
@ -44,3 +47,282 @@ _check_for_all_layers (uint32_t check_count, const char **check_names,
}
return TRUE;
}
static void
_init_context_debug (void)
{
#ifndef GST_DISABLE_GST_DEBUG
static volatile gsize _init = 0;
if (g_once_init_enter (&_init)) {
GST_DEBUG_CATEGORY_GET (GST_CAT_CONTEXT, "GST_CONTEXT");
g_once_init_leave (&_init, 1);
}
#endif
}
static gboolean
_vk_pad_query (const GValue * item, GValue * value, gpointer user_data)
{
GstPad *pad = g_value_get_object (item);
GstQuery *query = user_data;
gboolean res;
_init_context_debug ();
res = gst_pad_peer_query (pad, query);
if (res) {
g_value_set_boolean (value, TRUE);
return FALSE;
}
GST_CAT_INFO_OBJECT (GST_CAT_CONTEXT, pad, "pad peer query failed");
return TRUE;
}
gboolean
gst_vulkan_run_query (GstElement * element, GstQuery * query,
GstPadDirection direction)
{
GstIterator *it;
GstIteratorFoldFunction func = _vk_pad_query;
GValue res = { 0 };
g_value_init (&res, G_TYPE_BOOLEAN);
g_value_set_boolean (&res, FALSE);
/* Ask neighbor */
if (direction == GST_PAD_SRC)
it = gst_element_iterate_src_pads (element);
else
it = gst_element_iterate_sink_pads (element);
while (gst_iterator_fold (it, func, &res, query) == GST_ITERATOR_RESYNC)
gst_iterator_resync (it);
gst_iterator_free (it);
return g_value_get_boolean (&res);
}
static void
_vk_gst_context_query (GstElement * element, const gchar * display_type)
{
GstQuery *query;
GstContext *ctxt;
_init_context_debug ();
/* 2a) Query downstream with GST_QUERY_CONTEXT for the context and
* check if downstream already has a context of the specific type
* 2b) Query upstream as above.
*/
query = gst_query_new_context (display_type);
if (gst_vulkan_run_query (element, query, GST_PAD_SRC)) {
gst_query_parse_context (query, &ctxt);
GST_CAT_INFO_OBJECT (GST_CAT_CONTEXT, element,
"found context (%p) in downstream query", ctxt);
gst_element_set_context (element, ctxt);
} else if (gst_vulkan_run_query (element, query, GST_PAD_SINK)) {
gst_query_parse_context (query, &ctxt);
GST_CAT_INFO_OBJECT (GST_CAT_CONTEXT, element,
"found context (%p) in upstream query", ctxt);
gst_element_set_context (element, ctxt);
} else {
/* 3) Post a GST_MESSAGE_NEED_CONTEXT message on the bus with
* the required context type and afterwards check if a
* usable context was set now as in 1). The message could
* be handled by the parent bins of the element and the
* application.
*/
GstMessage *msg;
GST_CAT_INFO_OBJECT (GST_CAT_CONTEXT, element,
"posting need context message");
msg = gst_message_new_need_context (GST_OBJECT_CAST (element),
display_type);
gst_element_post_message (element, msg);
}
/*
* Whomever responds to the need-context message performs a
* GstElement::set_context() with the required context in which the element
* is required to update the display_ptr or call gst_vulkan_handle_set_context().
*/
gst_query_unref (query);
}
static void
_vk_display_context_query (GstElement * element,
GstVulkanDisplay ** display_ptr)
{
_vk_gst_context_query (element, GST_VULKAN_DISPLAY_CONTEXT_TYPE_STR);
}
/* 4) Create a context by itself and post a GST_MESSAGE_HAVE_CONTEXT
* message.
*/
/*
* @element: (transfer none):
* @context: (transfer full):
*/
static void
_vk_context_propagate (GstElement * element, GstContext * context)
{
GstMessage *msg;
_init_context_debug ();
gst_element_set_context (element, context);
GST_CAT_INFO_OBJECT (GST_CAT_CONTEXT, element,
"posting have context (%" GST_PTR_FORMAT ") message", context);
msg = gst_message_new_have_context (GST_OBJECT_CAST (element), context);
gst_element_post_message (GST_ELEMENT_CAST (element), msg);
}
gboolean
gst_vulkan_ensure_element_data (gpointer element,
GstVulkanDisplay ** display_ptr, GstVulkanInstance ** instance_ptr)
{
g_return_val_if_fail (element != NULL, FALSE);
g_return_val_if_fail (display_ptr != NULL, FALSE);
g_return_val_if_fail (instance_ptr != NULL, FALSE);
/* 1) Check if the element already has a context of the specific
* type.
*/
if (!*display_ptr) {
_vk_display_context_query (element, display_ptr);
/* Neighbour found and it updated the display */
if (!*display_ptr) {
GstContext *context;
/* If no neighboor, or application not interested, use system default */
*display_ptr = gst_vulkan_display_new ();
context = gst_context_new (GST_VULKAN_DISPLAY_CONTEXT_TYPE_STR, TRUE);
gst_context_set_vulkan_display (context, *display_ptr);
_vk_context_propagate (element, context);
}
}
if (!*instance_ptr) {
_vk_gst_context_query (element, GST_VULKAN_INSTANCE_CONTEXT_TYPE_STR);
/* Neighbour found and it updated the display */
if (!*instance_ptr) {
GstContext *context;
/* If no neighboor, or application not interested, use system default */
*instance_ptr = gst_vulkan_instance_new ();
context = gst_context_new (GST_VULKAN_INSTANCE_CONTEXT_TYPE_STR, TRUE);
gst_context_set_vulkan_instance (context, *instance_ptr);
_vk_context_propagate (element, context);
}
}
return *display_ptr != NULL && *instance_ptr != NULL;
}
gboolean
gst_vulkan_handle_set_context (GstElement * element, GstContext * context,
GstVulkanDisplay ** display, GstVulkanInstance ** instance)
{
GstVulkanDisplay *display_replacement = NULL;
GstVulkanInstance *instance_replacement = NULL;
const gchar *context_type;
g_return_val_if_fail (display != NULL, FALSE);
g_return_val_if_fail (instance != NULL, FALSE);
if (!context)
return FALSE;
context_type = gst_context_get_context_type (context);
if (g_strcmp0 (context_type, GST_VULKAN_DISPLAY_CONTEXT_TYPE_STR) == 0) {
if (!gst_context_get_vulkan_display (context, &display_replacement)) {
GST_WARNING_OBJECT (element, "Failed to get display from context");
return FALSE;
}
} else if (g_strcmp0 (context_type,
GST_VULKAN_INSTANCE_CONTEXT_TYPE_STR) == 0) {
if (!gst_context_get_vulkan_instance (context, &instance_replacement)) {
GST_WARNING_OBJECT (element, "Failed to get instance from context");
return FALSE;
}
}
if (display_replacement) {
GstVulkanDisplay *old = *display;
*display = display_replacement;
if (old)
gst_object_unref (old);
}
if (instance_replacement) {
GstVulkanInstance *old = *instance;
*instance = instance_replacement;
if (old)
gst_object_unref (old);
}
return TRUE;
}
gboolean
gst_vulkan_handle_context_query (GstElement * element, GstQuery * query,
GstVulkanDisplay ** display, GstVulkanInstance ** instance)
{
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);
g_return_val_if_fail (display != NULL, FALSE);
g_return_val_if_fail (instance != NULL, FALSE);
gst_query_parse_context_type (query, &context_type);
if (g_strcmp0 (context_type, GST_VULKAN_DISPLAY_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_DISPLAY_CONTEXT_TYPE_STR, TRUE);
gst_context_set_vulkan_display (context, *display);
gst_query_set_context (query, context);
gst_context_unref (context);
res = *display != NULL;
} else if (g_strcmp0 (context_type,
GST_VULKAN_INSTANCE_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_INSTANCE_CONTEXT_TYPE_STR, TRUE);
gst_context_set_vulkan_instance (context, *instance);
gst_query_set_context (query, context);
gst_context_unref (context);
res = *instance != NULL;
}
return res;
}

13
ext/vulkan/vkutils.h
View file

@ -21,12 +21,19 @@
#define _VK_UTILS_H_
#include <gst/gst.h>
#include "vk.h"
#include <vk.h>
G_BEGIN_DECLS
gboolean _check_for_all_layers (uint32_t check_count, const char ** check_names,
uint32_t layer_count, VkLayerProperties * layers);
gboolean gst_vulkan_ensure_element_data (gpointer element,
GstVulkanDisplay **display_ptr, GstVulkanInstance ** instance_ptr);
gboolean gst_vulkan_handle_set_context (GstElement * element, GstContext * context,
GstVulkanDisplay ** display, GstVulkanInstance ** instance);
gboolean gst_vulkan_handle_context_query (GstElement * element, GstQuery * query,
GstVulkanDisplay ** display, GstVulkanInstance ** instance);
gboolean gst_vulkan_run_query (GstElement * element,
GstQuery * query, GstPadDirection direction);
G_END_DECLS

33
ext/vulkan/vkutils_private.h Normal file
View file

@ -0,0 +1,33 @@
/*
* 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.
*/
#ifndef _VK_UTILS_PRIVATE_H_
#define _VK_UTILS_PRIVATE_H_
#include <gst/gst.h>
#include "vk.h"
G_BEGIN_DECLS
gboolean _check_for_all_layers (uint32_t check_count, const char ** check_names,
uint32_t layer_count, VkLayerProperties * layers);
G_END_DECLS
#endif /*_VK_UTILS_H_ */