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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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vulkan/identity: Split out most rendering code to a base class
A simple base class that renders a 2d fullscreen quad parallel to the screen surface inside the view frustum.
This commit is contained in:
Matthew Waters
parent
773e914f48
commit
dc0c9dea7f
7 changed files with 1213 additions and 815 deletions
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@ -10,6 +10,7 @@ subdir('shaders')
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vulkan_sources = [
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'gstvulkan.c',
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'vkfullscreenrender.c',
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'vkimageidentity.c',
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'vksink.c',
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'vkshader.c',
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@ -1,4 +1,4 @@
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#version 420 core
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#version 450 core
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layout(location = 0) in vec2 inTexCoord;
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@ -1,4 +1,4 @@
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#version 420 core
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#version 450 core
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layout(location = 0) in vec4 inPos;
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layout(location = 1) in vec2 inTexCoord;
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880
ext/vulkan/vkfullscreenrender.c
Normal file
880
ext/vulkan/vkfullscreenrender.c
Normal file
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@ -0,0 +1,880 @@
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/*
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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:element-vulkanimageidentity
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* @title: vulkanimgeidentity
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*
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* vulkanimageidentity produces a vulkan image that is a copy of the input image.
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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 <string.h>
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#include "vkimageidentity.h"
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#include "vktrash.h"
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#include "vkshader.h"
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GST_DEBUG_CATEGORY (gst_debug_vulkan_full_screen_render);
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#define GST_CAT_DEFAULT gst_debug_vulkan_full_screen_render
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struct Vertex vertices[] = {
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{-1.0f, -1.0f, 0.0f, 0.0f, 0.0f},
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{1.0f, -1.0f, 0.0f, 1.0f, 0.0f},
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{1.0f, 1.0f, 0.0f, 1.0f, 1.0f},
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{-1.0f, 1.0f, 0.0f, 0.0f, 1.0f},
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};
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gushort indices[] = {
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0, 1, 2, 0, 2, 3,
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};
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static void gst_vulkan_full_screen_render_finalize (GObject * object);
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static gboolean gst_vulkan_full_screen_render_query (GstBaseTransform * bt,
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GstPadDirection direction, GstQuery * query);
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static void gst_vulkan_full_screen_render_set_context (GstElement * element,
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GstContext * context);
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static gboolean gst_vulkan_full_screen_render_start (GstBaseTransform * bt);
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static gboolean gst_vulkan_full_screen_render_stop (GstBaseTransform * bt);
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static gboolean gst_vulkan_full_screen_render_set_caps (GstBaseTransform * bt,
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GstCaps * in_caps, GstCaps * out_caps);
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static GstCaps *gst_vulkan_full_screen_render_transform_caps (GstBaseTransform *
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bt, GstPadDirection direction, GstCaps * caps, GstCaps * filter);
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static gboolean
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gst_vulkan_full_screen_render_propose_allocation (GstBaseTransform * bt,
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GstQuery * decide_query, GstQuery * query);
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static gboolean
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gst_vulkan_full_screen_render_decide_allocation (GstBaseTransform * bt,
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GstQuery * query);
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#define IMAGE_FORMATS " { BGRA }"
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static GstStaticPadTemplate gst_vulkan_sink_template =
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GST_STATIC_PAD_TEMPLATE ("sink",
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GST_PAD_SINK,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE_WITH_FEATURES
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(GST_CAPS_FEATURE_MEMORY_VULKAN_IMAGE,
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IMAGE_FORMATS)));
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static GstStaticPadTemplate gst_vulkan_src_template =
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GST_STATIC_PAD_TEMPLATE ("src",
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GST_PAD_SRC,
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GST_PAD_ALWAYS,
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GST_STATIC_CAPS (GST_VIDEO_CAPS_MAKE_WITH_FEATURES
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(GST_CAPS_FEATURE_MEMORY_VULKAN_IMAGE,
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IMAGE_FORMATS)));
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enum
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{
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PROP_0,
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};
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enum
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{
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SIGNAL_0,
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LAST_SIGNAL
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};
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/* static guint gst_vulkan_full_screen_render_signals[LAST_SIGNAL] = { 0 }; */
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#define gst_vulkan_full_screen_render_parent_class parent_class
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G_DEFINE_TYPE_WITH_CODE (GstVulkanFullScreenRender,
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gst_vulkan_full_screen_render, GST_TYPE_BASE_TRANSFORM,
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GST_DEBUG_CATEGORY_INIT (gst_debug_vulkan_full_screen_render,
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"vulkanimageidentity", 0, "Vulkan Image identity"));
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static void
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gst_vulkan_full_screen_render_class_init (GstVulkanFullScreenRenderClass *
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klass)
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{
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GObjectClass *gobject_class;
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GstElementClass *gstelement_class;
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GstBaseTransformClass *gstbasetransform_class;
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gobject_class = (GObjectClass *) klass;
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gstelement_class = (GstElementClass *) klass;
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gstbasetransform_class = (GstBaseTransformClass *) klass;
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gst_element_class_set_metadata (gstelement_class, "Vulkan Uploader",
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"Filter/Video", "A Vulkan image copier",
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"Matthew Waters <matthew@centricular.com>");
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gst_element_class_add_static_pad_template (gstelement_class,
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&gst_vulkan_sink_template);
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gst_element_class_add_static_pad_template (gstelement_class,
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&gst_vulkan_src_template);
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gobject_class->finalize = gst_vulkan_full_screen_render_finalize;
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gstelement_class->set_context = gst_vulkan_full_screen_render_set_context;
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gstbasetransform_class->start =
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GST_DEBUG_FUNCPTR (gst_vulkan_full_screen_render_start);
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gstbasetransform_class->stop =
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GST_DEBUG_FUNCPTR (gst_vulkan_full_screen_render_stop);
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gstbasetransform_class->query =
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GST_DEBUG_FUNCPTR (gst_vulkan_full_screen_render_query);
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gstbasetransform_class->set_caps = gst_vulkan_full_screen_render_set_caps;
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gstbasetransform_class->transform_caps =
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gst_vulkan_full_screen_render_transform_caps;
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gstbasetransform_class->propose_allocation =
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gst_vulkan_full_screen_render_propose_allocation;
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gstbasetransform_class->decide_allocation =
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gst_vulkan_full_screen_render_decide_allocation;
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}
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static void
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gst_vulkan_full_screen_render_init (GstVulkanFullScreenRender * render)
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{
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}
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static void
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gst_vulkan_full_screen_render_finalize (GObject * object)
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{
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GstVulkanFullScreenRender *render = GST_VULKAN_FULL_SCREEN_RENDER (object);
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gst_caps_replace (&render->in_caps, NULL);
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gst_caps_replace (&render->out_caps, NULL);
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static gboolean
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gst_vulkan_full_screen_render_query (GstBaseTransform * bt,
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GstPadDirection direction, GstQuery * query)
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{
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GstVulkanFullScreenRender *render = GST_VULKAN_FULL_SCREEN_RENDER (bt);
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switch (GST_QUERY_TYPE (query)) {
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case GST_QUERY_CONTEXT:{
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if (gst_vulkan_handle_context_query (GST_ELEMENT (render), query,
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NULL, &render->instance, &render->device))
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return TRUE;
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if (gst_vulkan_queue_handle_context_query (GST_ELEMENT (render),
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query, &render->queue))
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return TRUE;
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break;
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}
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default:
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break;
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}
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return GST_BASE_TRANSFORM_CLASS (parent_class)->query (bt, direction, query);
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}
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static void
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gst_vulkan_full_screen_render_set_context (GstElement * element,
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GstContext * context)
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{
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GstVulkanFullScreenRender *render = GST_VULKAN_FULL_SCREEN_RENDER (element);
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gst_vulkan_handle_set_context (element, context, NULL, &render->instance);
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GST_ELEMENT_CLASS (parent_class)->set_context (element, context);
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}
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struct choose_data
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{
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GstVulkanFullScreenRender *upload;
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GstVulkanQueue *queue;
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};
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static gboolean
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_choose_queue (GstVulkanDevice * device, GstVulkanQueue * queue,
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struct choose_data *data)
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{
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guint flags = device->queue_family_props[queue->family].queueFlags;
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GST_ERROR ("flags 0x%x", flags);
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if ((flags & VK_QUEUE_GRAPHICS_BIT) != 0) {
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if (data->queue)
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gst_object_unref (data->queue);
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data->queue = gst_object_ref (queue);
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return FALSE;
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}
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return TRUE;
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}
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static GstVulkanQueue *
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_find_graphics_queue (GstVulkanFullScreenRender * upload)
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{
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struct choose_data data;
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data.upload = upload;
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data.queue = NULL;
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gst_vulkan_device_foreach_queue (upload->device,
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(GstVulkanDeviceForEachQueueFunc) _choose_queue, &data);
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return data.queue;
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}
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static GstCaps *
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gst_vulkan_full_screen_render_transform_caps (GstBaseTransform * bt,
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GstPadDirection direction, GstCaps * caps, GstCaps * filter)
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{
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GstCaps *result, *tmp;
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tmp = gst_caps_copy (caps);
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if (filter) {
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result = gst_caps_intersect_full (filter, tmp, GST_CAPS_INTERSECT_FIRST);
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gst_caps_unref (tmp);
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} else {
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result = tmp;
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}
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return result;
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}
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static void
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clear_shader_create_info (GstVulkanFullScreenRender * render)
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{
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if (render->shader_create_info) {
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if (render->destroy_shader_create_info)
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render->destroy_shader_create_info (render, render->shader_create_info);
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}
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render->n_shader_stages = 0;
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render->shader_create_info = NULL;
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render->destroy_shader_create_info = NULL;
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}
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static VkPipeline
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_create_pipeline (GstVulkanFullScreenRender * render)
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{
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GstVulkanFullScreenRenderClass *render_class =
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GST_VULKAN_FULL_SCREEN_RENDER_GET_CLASS (render);
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VkVertexInputBindingDescription vertex_binding_description;
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VkVertexInputAttributeDescription vertex_attribute_description[2];
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VkPipelineVertexInputStateCreateInfo vertex_input_info;
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VkPipelineInputAssemblyStateCreateInfo input_assembly;
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VkPipelineViewportStateCreateInfo viewport_state;
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VkPipelineRasterizationStateCreateInfo rasterizer;
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VkPipelineMultisampleStateCreateInfo multisampling;
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VkPipelineColorBlendAttachmentState color_blend_attachment;
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VkPipelineColorBlendStateCreateInfo color_blending;
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VkGraphicsPipelineCreateInfo pipeline_info;
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VkPipeline pipeline;
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GError *error = NULL;
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VkResult err;
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render_class->shader_create_info (render);
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/* *INDENT-OFF* */
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vertex_binding_description = (VkVertexInputBindingDescription) {
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.binding = 0,
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.stride = sizeof (struct Vertex),
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.inputRate = VK_VERTEX_INPUT_RATE_VERTEX
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};
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vertex_attribute_description[0] = (VkVertexInputAttributeDescription) {
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.binding = 0,
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.location = 0,
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.format = VK_FORMAT_R32G32B32_SFLOAT,
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.offset = G_STRUCT_OFFSET (struct Vertex, x)
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};
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vertex_attribute_description[1] = (VkVertexInputAttributeDescription) {
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.binding = 0,
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.location = 1,
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.format = VK_FORMAT_R32G32_SFLOAT,
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.offset = G_STRUCT_OFFSET (struct Vertex, s)
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};
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vertex_input_info = (VkPipelineVertexInputStateCreateInfo) {
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.sType = VK_STRUCTURE_TYPE_PIPELINE_VERTEX_INPUT_STATE_CREATE_INFO,
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.pNext = NULL,
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.vertexBindingDescriptionCount = 1,
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.pVertexBindingDescriptions = &vertex_binding_description,
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.vertexAttributeDescriptionCount = G_N_ELEMENTS (vertex_attribute_description),
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.pVertexAttributeDescriptions = vertex_attribute_description
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};
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input_assembly = (VkPipelineInputAssemblyStateCreateInfo) {
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.sType = VK_STRUCTURE_TYPE_PIPELINE_INPUT_ASSEMBLY_STATE_CREATE_INFO,
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.pNext = NULL,
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.topology = VK_PRIMITIVE_TOPOLOGY_TRIANGLE_LIST,
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.primitiveRestartEnable = VK_FALSE
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};
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viewport_state = (VkPipelineViewportStateCreateInfo) {
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.sType = VK_STRUCTURE_TYPE_PIPELINE_VIEWPORT_STATE_CREATE_INFO,
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.pNext = NULL,
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.viewportCount = 1,
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.pViewports = &(VkViewport) {
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.x = 0.0f,
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.y = 0.0f,
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.width = (float) GST_VIDEO_INFO_WIDTH (&render->out_info),
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.height = (float) GST_VIDEO_INFO_HEIGHT (&render->out_info),
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.minDepth = 0.0f,
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.maxDepth = 1.0f
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},
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.scissorCount = 1,
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.pScissors = &(VkRect2D) {
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.offset = { 0, 0 },
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.extent = {
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GST_VIDEO_INFO_WIDTH (&render->out_info),
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GST_VIDEO_INFO_HEIGHT (&render->out_info)
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}
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}
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};
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rasterizer = (VkPipelineRasterizationStateCreateInfo) {
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.sType = VK_STRUCTURE_TYPE_PIPELINE_RASTERIZATION_STATE_CREATE_INFO,
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.pNext = NULL,
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.depthClampEnable = VK_FALSE,
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.rasterizerDiscardEnable = VK_FALSE,
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.polygonMode = VK_POLYGON_MODE_FILL,
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.lineWidth = 1.0f,
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.cullMode = VK_CULL_MODE_BACK_BIT,
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.frontFace = VK_FRONT_FACE_CLOCKWISE,
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.depthBiasEnable = VK_FALSE
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};
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multisampling = (VkPipelineMultisampleStateCreateInfo) {
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.sType = VK_STRUCTURE_TYPE_PIPELINE_MULTISAMPLE_STATE_CREATE_INFO,
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.pNext = NULL,
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.sampleShadingEnable = VK_FALSE,
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.rasterizationSamples = VK_SAMPLE_COUNT_1_BIT
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};
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color_blend_attachment = (VkPipelineColorBlendAttachmentState) {
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.colorWriteMask = VK_COLOR_COMPONENT_R_BIT | VK_COLOR_COMPONENT_G_BIT | VK_COLOR_COMPONENT_B_BIT | VK_COLOR_COMPONENT_A_BIT,
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.blendEnable = VK_FALSE
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};
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color_blending = (VkPipelineColorBlendStateCreateInfo) {
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.sType = VK_STRUCTURE_TYPE_PIPELINE_COLOR_BLEND_STATE_CREATE_INFO,
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.pNext = NULL,
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.logicOpEnable = VK_FALSE,
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.logicOp = VK_LOGIC_OP_COPY,
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.attachmentCount = 1,
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.pAttachments = &color_blend_attachment,
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.blendConstants = { 0.0f, 0.0f, 0.0f, 0.0f }
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};
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pipeline_info = (VkGraphicsPipelineCreateInfo) {
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.sType = VK_STRUCTURE_TYPE_GRAPHICS_PIPELINE_CREATE_INFO,
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.pNext = NULL,
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.stageCount = render->n_shader_stages,
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.pStages = render->shader_create_info,
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.pVertexInputState = &vertex_input_info,
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.pInputAssemblyState = &input_assembly,
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.pViewportState = &viewport_state,
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.pRasterizationState = &rasterizer,
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.pMultisampleState = &multisampling,
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.pColorBlendState = &color_blending,
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.layout = render->pipeline_layout,
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.renderPass = render->render_pass,
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.subpass = 0,
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.basePipelineHandle = VK_NULL_HANDLE
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};
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/* *INDENT-ON* */
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err =
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vkCreateGraphicsPipelines (render->device->device, VK_NULL_HANDLE, 1,
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&pipeline_info, NULL, &pipeline);
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clear_shader_create_info (render);
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if (gst_vulkan_error_to_g_error (err, &error,
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"vkCreateGraphicsPipelines") < 0) {
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GST_ERROR_OBJECT (render, "Failed to create pipeline layout: %s",
|
||||
error->message);
|
||||
g_clear_error (&error);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return pipeline;
|
||||
}
|
||||
|
||||
static VkPipelineLayout
|
||||
_create_pipeline_layout (GstVulkanFullScreenRender * render)
|
||||
{
|
||||
GstVulkanFullScreenRenderClass *render_class =
|
||||
GST_VULKAN_FULL_SCREEN_RENDER_GET_CLASS (render);
|
||||
VkPipelineLayoutCreateInfo pipeline_layout_info;
|
||||
VkPipelineLayout pipeline_layout;
|
||||
VkPushConstantRange *constants = NULL;
|
||||
guint n_constants = 0;
|
||||
GError *error = NULL;
|
||||
VkResult err;
|
||||
|
||||
if (render_class->push_constant_ranges)
|
||||
constants = render_class->push_constant_ranges (render, &n_constants);
|
||||
|
||||
/* *INDENT-OFF* */
|
||||
pipeline_layout_info = (VkPipelineLayoutCreateInfo) {
|
||||
.sType = VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO,
|
||||
.pNext = NULL,
|
||||
.setLayoutCount = 1,
|
||||
.pSetLayouts = &render->descriptor_set_layout,
|
||||
.pushConstantRangeCount = n_constants,
|
||||
.pPushConstantRanges = constants,
|
||||
};
|
||||
/* *INDENT-ON* */
|
||||
|
||||
err =
|
||||
vkCreatePipelineLayout (render->device->device,
|
||||
&pipeline_layout_info, NULL, &pipeline_layout);
|
||||
g_free (constants);
|
||||
if (gst_vulkan_error_to_g_error (err, &error, "vkCreatePipelineLayout") < 0) {
|
||||
GST_ERROR_OBJECT (render, "Failed to create pipeline layout: %s",
|
||||
error->message);
|
||||
g_clear_error (&error);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return pipeline_layout;
|
||||
}
|
||||
|
||||
static VkRenderPass
|
||||
_create_render_pass (GstVulkanFullScreenRender * render)
|
||||
{
|
||||
GstVulkanFullScreenRenderClass *render_class =
|
||||
GST_VULKAN_FULL_SCREEN_RENDER_GET_CLASS (render);
|
||||
|
||||
guint n_descriptions;
|
||||
VkAttachmentDescription *descriptions =
|
||||
render_class->render_pass_attachment_descriptions (render,
|
||||
&n_descriptions);
|
||||
|
||||
guint n_refs;
|
||||
VkAttachmentReference *color_attachment_refs =
|
||||
render_class->render_pass_attachment_references (render, &n_refs);
|
||||
|
||||
/* *INDENT-OFF* */
|
||||
VkSubpassDescription subpass = {
|
||||
.pipelineBindPoint = VK_PIPELINE_BIND_POINT_GRAPHICS,
|
||||
.colorAttachmentCount = n_refs,
|
||||
.pColorAttachments = color_attachment_refs
|
||||
};
|
||||
|
||||
VkRenderPassCreateInfo render_pass_info = {
|
||||
.sType = VK_STRUCTURE_TYPE_RENDER_PASS_CREATE_INFO,
|
||||
.pNext = NULL,
|
||||
.attachmentCount = n_descriptions,
|
||||
.pAttachments = descriptions,
|
||||
.subpassCount = 1,
|
||||
.pSubpasses = &subpass
|
||||
};
|
||||
/* *INDENT-ON* */
|
||||
VkRenderPass render_pass = NULL;
|
||||
VkResult err;
|
||||
GError *error = NULL;
|
||||
|
||||
err =
|
||||
vkCreateRenderPass (render->device->device, &render_pass_info, NULL,
|
||||
&render_pass);
|
||||
g_free (color_attachment_refs);
|
||||
if (gst_vulkan_error_to_g_error (err, &error, "vkCreateRenderPass") < 0) {
|
||||
GST_ERROR_OBJECT (render, "Failed to create renderpass: %s",
|
||||
error->message);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return render_pass;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_vulkan_full_screen_render_set_caps (GstBaseTransform * bt,
|
||||
GstCaps * in_caps, GstCaps * out_caps)
|
||||
{
|
||||
GstVulkanFullScreenRender *render = GST_VULKAN_FULL_SCREEN_RENDER (bt);
|
||||
|
||||
if (!gst_video_info_from_caps (&render->in_info, in_caps))
|
||||
return FALSE;
|
||||
if (!gst_video_info_from_caps (&render->out_info, out_caps))
|
||||
return FALSE;
|
||||
|
||||
gst_caps_replace (&render->in_caps, in_caps);
|
||||
gst_caps_replace (&render->out_caps, out_caps);
|
||||
|
||||
if (render->render_pass) {
|
||||
render->trash_list = g_list_prepend (render->trash_list,
|
||||
gst_vulkan_trash_new_free_render_pass (gst_vulkan_fence_ref
|
||||
(render->last_fence), render->render_pass));
|
||||
render->render_pass = NULL;
|
||||
}
|
||||
|
||||
if (!(render->render_pass = _create_render_pass (render)))
|
||||
return FALSE;
|
||||
|
||||
if (render->graphics_pipeline) {
|
||||
render->trash_list = g_list_prepend (render->trash_list,
|
||||
gst_vulkan_trash_new_free_pipeline (gst_vulkan_fence_ref
|
||||
(render->last_fence), render->graphics_pipeline));
|
||||
render->graphics_pipeline = NULL;
|
||||
}
|
||||
if (!(render->graphics_pipeline = _create_pipeline (render)))
|
||||
return FALSE;
|
||||
|
||||
GST_DEBUG_OBJECT (bt, "set caps: %" GST_PTR_FORMAT, in_caps);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_vulkan_full_screen_render_propose_allocation (GstBaseTransform * bt,
|
||||
GstQuery * decide_query, GstQuery * query)
|
||||
{
|
||||
/* FIXME: */
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_vulkan_full_screen_render_decide_allocation (GstBaseTransform * bt,
|
||||
GstQuery * query)
|
||||
{
|
||||
GstVulkanFullScreenRender *render = GST_VULKAN_FULL_SCREEN_RENDER (bt);
|
||||
GstBufferPool *pool = NULL;
|
||||
GstStructure *config;
|
||||
GstCaps *caps;
|
||||
guint min, max, size;
|
||||
gboolean update_pool;
|
||||
|
||||
gst_query_parse_allocation (query, &caps, NULL);
|
||||
if (!caps)
|
||||
return FALSE;
|
||||
|
||||
if (gst_query_get_n_allocation_pools (query) > 0) {
|
||||
gst_query_parse_nth_allocation_pool (query, 0, &pool, &size, &min, &max);
|
||||
|
||||
update_pool = TRUE;
|
||||
} else {
|
||||
GstVideoInfo vinfo;
|
||||
|
||||
gst_video_info_init (&vinfo);
|
||||
gst_video_info_from_caps (&vinfo, caps);
|
||||
size = vinfo.size;
|
||||
min = max = 0;
|
||||
update_pool = FALSE;
|
||||
}
|
||||
|
||||
if (!pool || !GST_IS_VULKAN_IMAGE_BUFFER_POOL (pool)) {
|
||||
if (pool)
|
||||
gst_object_unref (pool);
|
||||
pool = gst_vulkan_image_buffer_pool_new (render->device);
|
||||
}
|
||||
|
||||
config = gst_buffer_pool_get_config (pool);
|
||||
|
||||
gst_buffer_pool_config_set_params (config, caps, size, min, max);
|
||||
gst_buffer_pool_config_add_option (config, GST_BUFFER_POOL_OPTION_VIDEO_META);
|
||||
|
||||
gst_buffer_pool_set_config (pool, config);
|
||||
|
||||
if (update_pool)
|
||||
gst_query_set_nth_allocation_pool (query, 0, pool, size, min, max);
|
||||
else
|
||||
gst_query_add_allocation_pool (query, pool, size, min, max);
|
||||
|
||||
gst_object_unref (pool);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static VkDescriptorSetLayout
|
||||
_create_descriptor_set_layout (GstVulkanFullScreenRender * render)
|
||||
{
|
||||
GstVulkanFullScreenRenderClass *render_class =
|
||||
GST_VULKAN_FULL_SCREEN_RENDER_GET_CLASS (render);
|
||||
guint n_bindings;
|
||||
VkDescriptorSetLayoutBinding *bindings =
|
||||
render_class->descriptor_set_layout_bindings (render, &n_bindings);
|
||||
|
||||
/* *INDENT-OFF* */
|
||||
VkDescriptorSetLayoutCreateInfo layout_info = {
|
||||
.sType = VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO,
|
||||
.pNext = NULL,
|
||||
.bindingCount = n_bindings,
|
||||
.pBindings = bindings
|
||||
};
|
||||
/* *INDENT-ON* */
|
||||
VkDescriptorSetLayout descriptor_set_layout;
|
||||
VkResult err;
|
||||
GError *error = NULL;
|
||||
|
||||
err =
|
||||
vkCreateDescriptorSetLayout (render->device->device, &layout_info,
|
||||
NULL, &descriptor_set_layout);
|
||||
g_free (bindings);
|
||||
if (gst_vulkan_error_to_g_error (err, &error,
|
||||
"vkCreateDescriptorSetLayout") < 0) {
|
||||
GST_ERROR_OBJECT (render, "Failed to create renderpass: %s",
|
||||
error->message);
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return descriptor_set_layout;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
_create_vertex_buffers (GstVulkanFullScreenRender * render)
|
||||
{
|
||||
GstMapInfo map_info;
|
||||
|
||||
render->vertices =
|
||||
gst_vulkan_buffer_memory_alloc (render->device, VK_FORMAT_R8_UNORM,
|
||||
sizeof (vertices),
|
||||
VK_BUFFER_USAGE_TRANSFER_DST_BIT | VK_BUFFER_USAGE_VERTEX_BUFFER_BIT,
|
||||
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT |
|
||||
VK_MEMORY_PROPERTY_HOST_COHERENT_BIT);
|
||||
|
||||
if (!gst_memory_map (render->vertices, &map_info, GST_MAP_WRITE)) {
|
||||
gst_memory_unref (render->vertices);
|
||||
render->vertices = NULL;
|
||||
return FALSE;
|
||||
}
|
||||
memcpy (map_info.data, vertices, sizeof (vertices));
|
||||
gst_memory_unmap (render->vertices, &map_info);
|
||||
|
||||
render->indices =
|
||||
gst_vulkan_buffer_memory_alloc (render->device, VK_FORMAT_R8_UNORM,
|
||||
sizeof (indices),
|
||||
VK_BUFFER_USAGE_TRANSFER_DST_BIT | VK_BUFFER_USAGE_INDEX_BUFFER_BIT,
|
||||
VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT |
|
||||
VK_MEMORY_PROPERTY_HOST_COHERENT_BIT);
|
||||
|
||||
if (!gst_memory_map (render->indices, &map_info, GST_MAP_WRITE)) {
|
||||
gst_memory_unref (render->vertices);
|
||||
render->vertices = NULL;
|
||||
gst_memory_unref (render->indices);
|
||||
render->indices = NULL;
|
||||
return FALSE;
|
||||
}
|
||||
memcpy (map_info.data, indices, sizeof (indices));
|
||||
gst_memory_unmap (render->indices, &map_info);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_vulkan_full_screen_render_start (GstBaseTransform * bt)
|
||||
{
|
||||
GstVulkanFullScreenRender *render = GST_VULKAN_FULL_SCREEN_RENDER (bt);
|
||||
|
||||
if (!gst_vulkan_ensure_element_data (GST_ELEMENT (bt), NULL,
|
||||
&render->instance)) {
|
||||
GST_ELEMENT_ERROR (render, RESOURCE, NOT_FOUND,
|
||||
("Failed to retreive vulkan instance"), (NULL));
|
||||
return FALSE;
|
||||
}
|
||||
if (!gst_vulkan_device_run_context_query (GST_ELEMENT (render),
|
||||
&render->device)) {
|
||||
GError *error = NULL;
|
||||
GST_DEBUG_OBJECT (render, "No device retrieved from peer elements");
|
||||
if (!(render->device =
|
||||
gst_vulkan_instance_create_device (render->instance, &error))) {
|
||||
GST_ELEMENT_ERROR (render, RESOURCE, NOT_FOUND,
|
||||
("Failed to create vulkan device"), ("%s", error->message));
|
||||
g_clear_error (&error);
|
||||
return FALSE;
|
||||
}
|
||||
}
|
||||
|
||||
if (!gst_vulkan_queue_run_context_query (GST_ELEMENT (render),
|
||||
&render->queue)) {
|
||||
GST_DEBUG_OBJECT (render, "No queue retrieved from peer elements");
|
||||
render->queue = _find_graphics_queue (render);
|
||||
}
|
||||
if (!render->queue)
|
||||
return FALSE;
|
||||
|
||||
if (!(render->descriptor_set_layout = _create_descriptor_set_layout (render)))
|
||||
return FALSE;
|
||||
if (!(render->pipeline_layout = _create_pipeline_layout (render)))
|
||||
return FALSE;
|
||||
|
||||
if (!_create_vertex_buffers (render))
|
||||
return FALSE;
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
gst_vulkan_full_screen_render_stop (GstBaseTransform * bt)
|
||||
{
|
||||
GstVulkanFullScreenRender *render = GST_VULKAN_FULL_SCREEN_RENDER (bt);
|
||||
|
||||
if (render->device) {
|
||||
if (render->last_fence) {
|
||||
render->trash_list = g_list_prepend (render->trash_list,
|
||||
gst_vulkan_trash_new_free_pipeline (gst_vulkan_fence_ref
|
||||
(render->last_fence), render->graphics_pipeline));
|
||||
render->graphics_pipeline = NULL;
|
||||
render->trash_list = g_list_prepend (render->trash_list,
|
||||
gst_vulkan_trash_new_free_pipeline_layout (gst_vulkan_fence_ref
|
||||
(render->last_fence), render->pipeline_layout));
|
||||
render->pipeline_layout = NULL;
|
||||
render->trash_list = g_list_prepend (render->trash_list,
|
||||
gst_vulkan_trash_new_free_render_pass (gst_vulkan_fence_ref
|
||||
(render->last_fence), render->render_pass));
|
||||
render->render_pass = NULL;
|
||||
render->trash_list = g_list_prepend (render->trash_list,
|
||||
gst_vulkan_trash_new_free_descriptor_set_layout (gst_vulkan_fence_ref
|
||||
(render->last_fence), render->descriptor_set_layout));
|
||||
render->descriptor_set_layout = NULL;
|
||||
|
||||
gst_vulkan_fence_unref (render->last_fence);
|
||||
render->last_fence = NULL;
|
||||
} else {
|
||||
vkDestroyPipeline (render->device->device,
|
||||
render->graphics_pipeline, NULL);
|
||||
render->graphics_pipeline = NULL;
|
||||
|
||||
vkDestroyPipelineLayout (render->device->device,
|
||||
render->pipeline_layout, NULL);
|
||||
render->pipeline_layout = NULL;
|
||||
|
||||
vkDestroyRenderPass (render->device->device, render->render_pass, NULL);
|
||||
render->render_pass = NULL;
|
||||
|
||||
vkDestroyDescriptorSetLayout (render->device->device,
|
||||
render->descriptor_set_layout, NULL);
|
||||
render->descriptor_set_layout = NULL;
|
||||
}
|
||||
|
||||
if (!gst_vulkan_trash_list_wait (render->trash_list, -1))
|
||||
GST_WARNING_OBJECT (render,
|
||||
"Failed to wait for all resources to be freed");
|
||||
render->trash_list = NULL;
|
||||
|
||||
if (render->vertices)
|
||||
gst_memory_unref (render->vertices);
|
||||
render->vertices = NULL;
|
||||
|
||||
if (render->indices)
|
||||
gst_memory_unref (render->indices);
|
||||
render->indices = NULL;
|
||||
|
||||
gst_object_unref (render->device);
|
||||
}
|
||||
render->device = NULL;
|
||||
|
||||
if (render->queue)
|
||||
gst_object_unref (render->queue);
|
||||
render->queue = NULL;
|
||||
|
||||
if (render->instance)
|
||||
gst_object_unref (render->instance);
|
||||
render->instance = NULL;
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
/**
|
||||
* gst_vulkan_full_screen_render_fill_command_buffer:
|
||||
* @render: a #GstVulkanFullScreenRender
|
||||
* @cmd: a `VkCommandBuffer`
|
||||
* @framebuffer: a `VkFramebuffer`
|
||||
*
|
||||
* Returns: whether @cmd could be filled with the commands necessary to render
|
||||
*/
|
||||
gboolean
|
||||
gst_vulkan_full_screen_render_fill_command_buffer (GstVulkanFullScreenRender *
|
||||
render, VkCommandBuffer cmd, VkFramebuffer framebuffer)
|
||||
{
|
||||
/* *INDENT-OFF* */
|
||||
VkClearValue clearColor = {{{ 0.0f, 0.0f, 0.0f, 1.0f }}};
|
||||
VkRenderPassBeginInfo render_pass_info = {
|
||||
.sType = VK_STRUCTURE_TYPE_RENDER_PASS_BEGIN_INFO,
|
||||
.renderPass = render->render_pass,
|
||||
.framebuffer = framebuffer,
|
||||
.renderArea.offset = { 0, 0 },
|
||||
.renderArea.extent = {
|
||||
GST_VIDEO_INFO_WIDTH (&render->out_info),
|
||||
GST_VIDEO_INFO_HEIGHT (&render->out_info)
|
||||
},
|
||||
.clearValueCount = 1,
|
||||
.pClearValues = &clearColor
|
||||
};
|
||||
/* *INDENI-ON* */
|
||||
VkDeviceSize offsets[] = { 0 };
|
||||
|
||||
vkCmdBeginRenderPass (cmd, &render_pass_info, VK_SUBPASS_CONTENTS_INLINE);
|
||||
vkCmdBindPipeline (cmd, VK_PIPELINE_BIND_POINT_GRAPHICS,
|
||||
render->graphics_pipeline);
|
||||
vkCmdBindVertexBuffers (cmd, 0, 1,
|
||||
&((GstVulkanBufferMemory *) render->vertices)->buffer, offsets);
|
||||
vkCmdBindIndexBuffer (cmd,
|
||||
((GstVulkanBufferMemory *) render->indices)->buffer, 0,
|
||||
VK_INDEX_TYPE_UINT16);
|
||||
vkCmdDrawIndexed (cmd, G_N_ELEMENTS (indices), 1, 0, 0, 0);
|
||||
vkCmdEndRenderPass (cmd);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
gboolean
|
||||
gst_vulkan_full_screen_render_submit (GstVulkanFullScreenRender * render,
|
||||
VkCommandBuffer cmd, GstVulkanFence * fence)
|
||||
{
|
||||
VkSubmitInfo submit_info;
|
||||
GError *error = NULL;
|
||||
VkResult err;
|
||||
|
||||
if (!fence)
|
||||
fence = gst_vulkan_fence_new (render->device, 0, &error);
|
||||
if (!fence)
|
||||
goto error;
|
||||
|
||||
/* *INDENT-OFF* */
|
||||
submit_info = (VkSubmitInfo) {
|
||||
.sType = VK_STRUCTURE_TYPE_SUBMIT_INFO,
|
||||
.pNext = NULL,
|
||||
.waitSemaphoreCount = 0,
|
||||
.pWaitSemaphores = NULL,
|
||||
.pWaitDstStageMask = NULL,
|
||||
.commandBufferCount = 1,
|
||||
.pCommandBuffers = &cmd,
|
||||
.signalSemaphoreCount = 0,
|
||||
.pSignalSemaphores = NULL,
|
||||
};
|
||||
/* *INDENT-ON* */
|
||||
|
||||
if (render->last_fence)
|
||||
gst_vulkan_fence_unref (render->last_fence);
|
||||
render->last_fence = gst_vulkan_fence_ref (fence);
|
||||
|
||||
err =
|
||||
vkQueueSubmit (render->queue->queue, 1, &submit_info,
|
||||
GST_VULKAN_FENCE_FENCE (fence));
|
||||
if (gst_vulkan_error_to_g_error (err, &error, "vkQueueSubmit") < 0)
|
||||
goto error;
|
||||
|
||||
render->trash_list = gst_vulkan_trash_list_gc (render->trash_list);
|
||||
|
||||
gst_vulkan_fence_unref (fence);
|
||||
|
||||
return TRUE;
|
||||
|
||||
error:
|
||||
GST_ELEMENT_ERROR (render, LIBRARY, FAILED, ("%s", error->message), (NULL));
|
||||
g_clear_error (&error);
|
||||
return FALSE;
|
||||
}
|
||||
96
ext/vulkan/vkfullscreenrender.h
Normal file
96
ext/vulkan/vkfullscreenrender.h
Normal file
|
|
@ -0,0 +1,96 @@
|
|||
/*
|
||||
* GStreamer
|
||||
* Copyright (C) 2019 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_FULL_SCREEN_RENDER_H_
|
||||
#define _VK_FULL_SCREEN_RENDER_H_
|
||||
|
||||
#include <gst/gst.h>
|
||||
#include <gst/video/video.h>
|
||||
#include <gst/vulkan/vulkan.h>
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
#define GST_TYPE_VULKAN_FULL_SCREEN_RENDER (gst_vulkan_full_screen_render_get_type())
|
||||
#define GST_VULKAN_FULL_SCREEN_RENDER(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_VULKAN_FULL_SCREEN_RENDER,GstVulkanFullScreenRender))
|
||||
#define GST_VULKAN_FULL_SCREEN_RENDER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_VULKAN_FULL_SCREEN_RENDER,GstVulkanFullScreenRenderClass))
|
||||
#define GST_VULKAN_FULL_SCREEN_RENDER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_VULKAN_FULL_SCREEN_RENDER,GstVulkanFullScreenRenderClass))
|
||||
#define GST_IS_VULKAN_FULL_SCREEN_RENDER(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_VULKAN_FULL_SCREEN_RENDER))
|
||||
#define GST_IS_VULKAN_FULL_SCREEN_RENDER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_VULKAN_FULL_SCREEN_RENDER))
|
||||
|
||||
typedef struct _GstVulkanFullScreenRender GstVulkanFullScreenRender;
|
||||
typedef struct _GstVulkanFullScreenRenderClass GstVulkanFullScreenRenderClass;
|
||||
|
||||
typedef void (*GstVulkanFullScreenRenderDestroyInfoNotify)
|
||||
(GstVulkanFullScreenRender * render, gpointer info);
|
||||
|
||||
struct Vertex
|
||||
{
|
||||
gfloat x, y, z;
|
||||
gfloat s, t;
|
||||
};
|
||||
|
||||
struct _GstVulkanFullScreenRender
|
||||
{
|
||||
GstBaseTransform parent;
|
||||
|
||||
GstVulkanInstance *instance;
|
||||
GstVulkanDevice *device;
|
||||
GstVulkanQueue *queue;
|
||||
|
||||
GstCaps *in_caps;
|
||||
GstVideoInfo in_info;
|
||||
GstCaps *out_caps;
|
||||
GstVideoInfo out_info;
|
||||
|
||||
guint n_shader_stages;
|
||||
VkPipelineShaderStageCreateInfo *shader_create_info;
|
||||
GstVulkanFullScreenRenderDestroyInfoNotify destroy_shader_create_info;
|
||||
|
||||
VkRenderPass render_pass;
|
||||
VkPipelineLayout pipeline_layout;
|
||||
VkPipeline graphics_pipeline;
|
||||
VkDescriptorSetLayout descriptor_set_layout;
|
||||
|
||||
GstMemory *vertices;
|
||||
GstMemory *indices;
|
||||
|
||||
GList *trash_list;
|
||||
GstVulkanFence *last_fence;
|
||||
};
|
||||
|
||||
struct _GstVulkanFullScreenRenderClass
|
||||
{
|
||||
GstBaseTransformClass video_sink_class;
|
||||
|
||||
void (*shader_create_info) (GstVulkanFullScreenRender * render);
|
||||
VkDescriptorSetLayoutBinding * (*descriptor_set_layout_bindings) (GstVulkanFullScreenRender * render, guint * n_bindings);
|
||||
VkAttachmentReference * (*render_pass_attachment_references) (GstVulkanFullScreenRender * render, guint * n_refs);
|
||||
VkAttachmentDescription * (*render_pass_attachment_descriptions) (GstVulkanFullScreenRender * render, guint * n_descriptions);
|
||||
VkPushConstantRange * (*push_constant_ranges) (GstVulkanFullScreenRender * render, guint * n_constants);
|
||||
};
|
||||
|
||||
gboolean gst_vulkan_full_screen_render_fill_command_buffer (GstVulkanFullScreenRender * render, VkCommandBuffer cmd, VkFramebuffer framebuffer);
|
||||
gboolean gst_vulkan_full_screen_render_submit (GstVulkanFullScreenRender * render, VkCommandBuffer cmd, GstVulkanFence *fence);
|
||||
|
||||
GType gst_vulkan_full_screen_render_get_type(void);
|
||||
|
||||
G_END_DECLS
|
||||
|
||||
#endif
|
||||
File diff suppressed because it is too large
Load diff
|
|
@ -24,6 +24,7 @@
|
|||
#include <gst/gst.h>
|
||||
#include <gst/video/video.h>
|
||||
#include <gst/vulkan/vulkan.h>
|
||||
#include "vkfullscreenrender.h"
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
|
|
@ -38,36 +39,21 @@ typedef struct _GstVulkanImageIdentityClass GstVulkanImageIdentityClass;
|
|||
|
||||
struct _GstVulkanImageIdentity
|
||||
{
|
||||
GstBaseTransform parent;
|
||||
GstVulkanFullScreenRender parent;
|
||||
|
||||
GstVulkanInstance *instance;
|
||||
GstVulkanDevice *device;
|
||||
GstVulkanQueue *queue;
|
||||
GstVulkanCommandPool *cmd_pool;
|
||||
GstVulkanCommandPool *cmd_pool;
|
||||
|
||||
GstCaps *caps;
|
||||
GstVideoInfo v_info;
|
||||
VkSampler sampler;
|
||||
VkDescriptorPool descriptor_pool;
|
||||
VkDescriptorSet descriptor_set;
|
||||
|
||||
VkRenderPass render_pass;
|
||||
VkPipelineLayout pipeline_layout;
|
||||
VkPipeline graphics_pipeline;
|
||||
VkSampler sampler;
|
||||
VkDescriptorSetLayout descriptor_set_layout;
|
||||
VkDescriptorPool descriptor_pool;
|
||||
VkDescriptorSet descriptor_set;
|
||||
|
||||
GstMemory *vertices;
|
||||
GstMemory *indices;
|
||||
|
||||
GList *trash_list;
|
||||
GstVulkanFence *last_fence;
|
||||
|
||||
GArray *frames;
|
||||
VkDescriptorSetLayoutBinding sampler_layout_binding;
|
||||
VkDescriptorSetLayoutCreateInfo layout_info;
|
||||
};
|
||||
|
||||
struct _GstVulkanImageIdentityClass
|
||||
{
|
||||
GstBaseTransformClass video_sink_class;
|
||||
GstVulkanFullScreenRenderClass parent_class;
|
||||
};
|
||||
|
||||
GType gst_vulkan_image_identity_get_type(void);
|
||||
|
|
|
|||
Loading…
Reference in a new issue