Commit dc0c9dea authored by Matthew Waters's avatar Matthew Waters 🐨

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.
parent 773e914f
......@@ -10,6 +10,7 @@ subdir('shaders')
vulkan_sources = [
'gstvulkan.c',
'vkfullscreenrender.c',
'vkimageidentity.c',
'vksink.c',
'vkshader.c',
......
#version 420 core
#version 450 core
layout(location = 0) in vec2 inTexCoord;
......
#version 420 core
#version 450 core
layout(location = 0) in vec4 inPos;
layout(location = 1) in vec2 inTexCoord;
......
This diff is collapsed.
/*
* 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
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......@@ -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);
......
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