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196 lines
5.4 KiB
C
196 lines
5.4 KiB
C
/*
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* GStreamer
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* Copyright (C) 2019 Matthew Waters <matthew@centricular.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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/**
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* SECTION:vulkanhandlepool
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* @title: GstVulkanHandlePool
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* @short_description: Vulkan handle pool
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* @see_also: #GstVulkanHandle, #GstVulkanDevice
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*
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* #GstVulkanHandlePool holds a number of handles that are pooled together.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "gstvkhandlepool.h"
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#include "gstvkdevice.h"
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#define GST_VULKAN_HANDLE_POOL_LARGE_OUTSTANDING 1024
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#define GST_CAT_DEFAULT gst_debug_vulkan_handle_pool
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GST_DEBUG_CATEGORY (GST_CAT_DEFAULT);
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#define parent_class gst_vulkan_handle_pool_parent_class
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G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GstVulkanHandlePool, gst_vulkan_handle_pool,
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GST_TYPE_OBJECT, GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT,
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"vulkanhandlepool", 0, "Vulkan handle pool"));
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static gpointer
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gst_vulkan_handle_pool_default_alloc (GstVulkanHandlePool * pool,
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GError ** error)
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{
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return NULL;
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}
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static gpointer
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gst_vulkan_handle_pool_default_acquire (GstVulkanHandlePool * pool,
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GError ** error)
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{
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gpointer ret;
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GST_OBJECT_LOCK (pool);
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if (pool->available->len > 0) {
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ret = g_ptr_array_remove_index_fast (pool->available, 0);
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} else {
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ret = gst_vulkan_handle_pool_alloc (pool, error);
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}
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if (ret) {
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g_ptr_array_add (pool->outstanding, ret);
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#if defined(GST_ENABLE_EXTRA_CHECKS)
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if (pool->outstanding->len > GST_VULKAN_HANDLE_POOL_LARGE_OUTSTANDING)
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g_critical ("%s: There are a large number of handles outstanding! "
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"This usually means there is a reference counting issue somewhere.",
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GST_OBJECT_NAME (pool));
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#endif
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}
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GST_OBJECT_UNLOCK (pool);
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return ret;
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}
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static void
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gst_vulkan_handle_pool_default_release (GstVulkanHandlePool * pool,
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gpointer handle)
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{
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GST_OBJECT_LOCK (pool);
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if (!g_ptr_array_remove_fast (pool->outstanding, handle)) {
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g_warning ("%s: Attempt was made to release a handle (%p) that does not "
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"belong to us", GST_OBJECT_NAME (pool), handle);
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GST_OBJECT_UNLOCK (pool);
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return;
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}
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g_ptr_array_add (pool->available, handle);
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GST_OBJECT_UNLOCK (pool);
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}
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static void
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gst_vulkan_handle_pool_default_free (GstVulkanHandlePool * pool,
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gpointer handle)
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{
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}
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static void
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do_free_handle (gpointer handle, GstVulkanHandlePool * pool)
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{
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GstVulkanHandlePoolClass *klass = GST_VULKAN_HANDLE_POOL_GET_CLASS (pool);
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klass->free (pool, handle);
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}
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static void
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gst_vulkan_handle_pool_dispose (GObject * object)
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{
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GstVulkanHandlePool *pool = GST_VULKAN_HANDLE_POOL (object);
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if (pool->outstanding) {
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g_warn_if_fail (pool->outstanding->len <= 0);
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g_ptr_array_unref (pool->outstanding);
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}
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pool->outstanding = NULL;
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if (pool->available) {
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g_ptr_array_foreach (pool->available, (GFunc) do_free_handle, pool);
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g_ptr_array_unref (pool->available);
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}
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pool->available = NULL;
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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static void
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gst_vulkan_handle_pool_finalize (GObject * object)
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{
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GstVulkanHandlePool *pool = GST_VULKAN_HANDLE_POOL (object);
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gst_clear_object (&pool->device);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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gst_vulkan_handle_pool_init (GstVulkanHandlePool * handle)
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{
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handle->outstanding = g_ptr_array_new ();
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handle->available = g_ptr_array_new ();
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}
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static void
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gst_vulkan_handle_pool_class_init (GstVulkanHandlePoolClass * klass)
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{
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GObjectClass *gobject_class = (GObjectClass *) klass;
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gobject_class->dispose = gst_vulkan_handle_pool_dispose;
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gobject_class->finalize = gst_vulkan_handle_pool_finalize;
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klass->alloc = gst_vulkan_handle_pool_default_alloc;
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klass->acquire = gst_vulkan_handle_pool_default_acquire;
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klass->release = gst_vulkan_handle_pool_default_release;
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klass->free = gst_vulkan_handle_pool_default_free;
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}
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gpointer
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gst_vulkan_handle_pool_alloc (GstVulkanHandlePool * pool, GError ** error)
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{
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GstVulkanHandlePoolClass *klass;
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g_return_val_if_fail (GST_IS_VULKAN_HANDLE_POOL (pool), NULL);
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klass = GST_VULKAN_HANDLE_POOL_GET_CLASS (pool);
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g_return_val_if_fail (klass->alloc != NULL, NULL);
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return klass->alloc (pool, error);
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}
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gpointer
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gst_vulkan_handle_pool_acquire (GstVulkanHandlePool * pool, GError ** error)
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{
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GstVulkanHandlePoolClass *klass;
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g_return_val_if_fail (GST_IS_VULKAN_HANDLE_POOL (pool), NULL);
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klass = GST_VULKAN_HANDLE_POOL_GET_CLASS (pool);
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g_return_val_if_fail (klass->acquire != NULL, NULL);
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return klass->acquire (pool, error);
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}
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void
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gst_vulkan_handle_pool_release (GstVulkanHandlePool * pool, gpointer handle)
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{
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GstVulkanHandlePoolClass *klass;
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g_return_if_fail (GST_IS_VULKAN_HANDLE_POOL (pool));
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klass = GST_VULKAN_HANDLE_POOL_GET_CLASS (pool);
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g_return_if_fail (klass->release != NULL);
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klass->release (pool, handle);
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}
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