gstreamer/subprojects/gst-plugins-bad/gst-libs/gst/vulkan/wayland/gstvkwindow_wayland.c

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/*
* GStreamer
* Copyright (C) 2016 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.
*/
#define GLIB_DISABLE_DEPRECATION_WARNINGS
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <linux/input.h>
#include <gst/vulkan/wayland/gstvkdisplay_wayland.h>
#include "gstvkwindow_wayland.h"
#include "wayland_event_source.h"
#define GST_CAT_DEFAULT gst_vulkan_window_wayland_debug
GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
static void
_init_debug (void)
{
static gsize _init = 0;
if (g_once_init_enter (&_init)) {
GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "vulkanwindowxcb", 0,
"Vulkan XCB Window");
g_once_init_leave (&_init, 1);
}
}
#define gst_vulkan_window_wayland_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE (GstVulkanWindowWayland, gst_vulkan_window_wayland,
GST_TYPE_VULKAN_WINDOW, _init_debug ());
static void gst_vulkan_window_wayland_close (GstVulkanWindow * window);
static gboolean gst_vulkan_window_wayland_open (GstVulkanWindow * window,
GError ** error);
static VkSurfaceKHR gst_vulkan_window_wayland_get_surface (GstVulkanWindow
* window, GError ** error);
static gboolean
gst_vulkan_window_wayland_get_presentation_support (GstVulkanWindow *
window, GstVulkanDevice * device, guint32 queue_family_idx);
static void
handle_ping (void *data, struct wl_shell_surface *shell_surface,
uint32_t serial)
{
GstVulkanWindowWayland *window_wl = data;
GST_TRACE_OBJECT (window_wl, "ping received serial %u", serial);
wl_shell_surface_pong (shell_surface, serial);
}
/*
static void window_resize (GstVulkanWindowWayland * window_wl, guint width,
guint height);*/
static void
handle_configure (void *data, struct wl_shell_surface *shell_surface,
uint32_t edges, int32_t width, int32_t height)
{
GstVulkanWindowWayland *window_wl = data;
GST_DEBUG_OBJECT (window_wl, "configure event on surface %p, %ix%i",
shell_surface, width, height);
/*window_resize (window_wl, width, height); */
}
static void
handle_popup_done (void *data, struct wl_shell_surface *shell_surface)
{
}
static const struct wl_shell_surface_listener shell_surface_listener = {
handle_ping,
handle_configure,
handle_popup_done
};
static void
destroy_surfaces (GstVulkanWindowWayland * window_wl)
{
GST_DEBUG_OBJECT (window_wl, "destroying created surfaces");
if (window_wl->shell_surface) {
wl_shell_surface_destroy (window_wl->shell_surface);
window_wl->shell_surface = NULL;
}
if (window_wl->surface) {
wl_surface_destroy (window_wl->surface);
window_wl->surface = NULL;
}
}
static void
create_surfaces (GstVulkanWindowWayland * window_wl)
{
GstVulkanDisplayWayland *display =
GST_VULKAN_DISPLAY_WAYLAND (GST_VULKAN_WINDOW (window_wl)->display);
gint width, height;
if (!window_wl->surface) {
window_wl->surface = wl_compositor_create_surface (display->compositor);
if (window_wl->queue)
wl_proxy_set_queue ((struct wl_proxy *) window_wl->surface,
window_wl->queue);
}
if (!window_wl->shell_surface) {
window_wl->shell_surface =
wl_shell_get_shell_surface (display->shell, window_wl->surface);
if (window_wl->queue)
wl_proxy_set_queue ((struct wl_proxy *) window_wl->shell_surface,
window_wl->queue);
wl_shell_surface_add_listener (window_wl->shell_surface,
&shell_surface_listener, window_wl);
wl_shell_surface_set_title (window_wl->shell_surface, "Vulkan Renderer");
wl_shell_surface_set_toplevel (window_wl->shell_surface);
GST_DEBUG_OBJECT (window_wl, "Successfully created shell surface %p",
window_wl->shell_surface);
}
if (window_wl->window_width > 0)
width = window_wl->window_width;
else
width = 320;
window_wl->window_width = width;
if (window_wl->window_height > 0)
height = window_wl->window_height;
else
height = 240;
window_wl->window_height = height;
gst_vulkan_window_resize (GST_VULKAN_WINDOW (window_wl),
window_wl->window_width, window_wl->window_height);
}
static void
gst_vulkan_window_wayland_class_init (GstVulkanWindowWaylandClass * klass)
{
GstVulkanWindowClass *window_class = (GstVulkanWindowClass *) klass;
window_class->close = GST_DEBUG_FUNCPTR (gst_vulkan_window_wayland_close);
window_class->open = GST_DEBUG_FUNCPTR (gst_vulkan_window_wayland_open);
window_class->get_surface =
GST_DEBUG_FUNCPTR (gst_vulkan_window_wayland_get_surface);
window_class->get_presentation_support =
GST_DEBUG_FUNCPTR (gst_vulkan_window_wayland_get_presentation_support);
}
static void
gst_vulkan_window_wayland_init (GstVulkanWindowWayland * window)
{
}
GstVulkanWindowWayland *
gst_vulkan_window_wayland_new (GstVulkanDisplay * display)
{
GstVulkanWindowWayland *window;
if ((gst_vulkan_display_get_handle_type (display) &
GST_VULKAN_DISPLAY_TYPE_WAYLAND)
== 0)
/* we require a wayland display to create wayland surfaces */
return NULL;
_init_debug ();
GST_DEBUG ("creating Wayland window");
window = g_object_new (GST_TYPE_VULKAN_WINDOW_WAYLAND, NULL);
gst_object_ref_sink (window);
return window;
}
static void
gst_vulkan_window_wayland_close (GstVulkanWindow * window)
{
GstVulkanWindowWayland *window_wl;
window_wl = GST_VULKAN_WINDOW_WAYLAND (window);
destroy_surfaces (window_wl);
g_source_destroy (window_wl->wl_source);
g_source_unref (window_wl->wl_source);
window_wl->wl_source = NULL;
GST_VULKAN_WINDOW_CLASS (parent_class)->close (window);
}
static gboolean
gst_vulkan_window_wayland_open (GstVulkanWindow * window, GError ** error)
{
GstVulkanDisplayWayland *display;
GstVulkanWindowWayland *window_wl = GST_VULKAN_WINDOW_WAYLAND (window);
if (!GST_IS_VULKAN_DISPLAY_WAYLAND (window->display)) {
g_set_error (error, GST_VULKAN_WINDOW_ERROR,
GST_VULKAN_WINDOW_ERROR_RESOURCE_UNAVAILABLE,
"Failed to retrieve Wayland display (wrong type?)");
return FALSE;
}
display = GST_VULKAN_DISPLAY_WAYLAND (window->display);
if (!display->display) {
g_set_error (error, GST_VULKAN_WINDOW_ERROR,
GST_VULKAN_WINDOW_ERROR_RESOURCE_UNAVAILABLE,
"Failed to retrieve Wayland display");
return FALSE;
}
window_wl->queue = NULL;
if (!GST_VULKAN_WINDOW_CLASS (parent_class)->open (window, error))
return FALSE;
create_surfaces (window_wl);
gst_vulkan_display_wayland_roundtrip_async (display);
return TRUE;
}
static VkSurfaceKHR
gst_vulkan_window_wayland_get_surface (GstVulkanWindow * window,
GError ** error)
{
GstVulkanWindowWayland *window_wl = GST_VULKAN_WINDOW_WAYLAND (window);
VkWaylandSurfaceCreateInfoKHR info = { 0, };
VkSurfaceKHR ret;
VkResult err;
info.sType = VK_STRUCTURE_TYPE_WAYLAND_SURFACE_CREATE_INFO_KHR;
info.pNext = NULL;
info.flags = 0;
info.display = GST_VULKAN_DISPLAY_WAYLAND_DISPLAY (window->display);
info.surface = window_wl->surface;
if (!window_wl->CreateWaylandSurface)
window_wl->CreateWaylandSurface =
gst_vulkan_instance_get_proc_address (window->display->instance,
"vkCreateWaylandSurfaceKHR");
if (!window_wl->CreateWaylandSurface) {
g_set_error_literal (error, GST_VULKAN_ERROR, VK_ERROR_FEATURE_NOT_PRESENT,
"Could not retrieve \"vkCreateWaylandSurfaceKHR\" function pointer");
return VK_NULL_HANDLE;
}
err =
window_wl->CreateWaylandSurface (window->display->instance->instance,
&info, NULL, &ret);
if (gst_vulkan_error_to_g_error (err, error, "vkCreateWaylandSurfaceKHR") < 0)
return VK_NULL_HANDLE;
return ret;
}
static gboolean
gst_vulkan_window_wayland_get_presentation_support (GstVulkanWindow * window,
GstVulkanDevice * device, guint32 queue_family_idx)
{
GstVulkanWindowWayland *window_wl = GST_VULKAN_WINDOW_WAYLAND (window);
VkPhysicalDevice gpu;
if (!window_wl->GetPhysicalDeviceWaylandPresentationSupport)
window_wl->GetPhysicalDeviceWaylandPresentationSupport =
gst_vulkan_instance_get_proc_address (window->display->instance,
"vkGetPhysicalDeviceWaylandPresentationSupportKHR");
if (!window_wl->GetPhysicalDeviceWaylandPresentationSupport) {
GST_WARNING_OBJECT (window, "Could not retrieve "
"\"vkGetPhysicalDeviceWaylandPresentationSupportKHR\" "
"function pointer");
return FALSE;
}
gpu = gst_vulkan_device_get_physical_device (device);
if (window_wl->GetPhysicalDeviceWaylandPresentationSupport (gpu,
queue_family_idx,
GST_VULKAN_DISPLAY_WAYLAND_DISPLAY (window->display)))
return TRUE;
return FALSE;
}