gstreamer/gst-libs/gst/vulkan/wayland/gstvkwindow_wayland.c
Matthew Waters 640a65bf96 gst: don't use volatile to mean atomic
volatile is not sufficient to provide atomic guarantees and real atomics
should be used instead.  GCC 11 has started warning about using volatile
with atomic operations.

https://gitlab.gnome.org/GNOME/glib/-/merge_requests/1719

Discovered in https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/-/issues/868

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2098>
2021-03-22 14:34:36 +11:00

307 lines
9.1 KiB
C

/*
* 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 NULL;
}
err =
window_wl->CreateWaylandSurface (window->display->instance->instance,
&info, NULL, &ret);
if (gst_vulkan_error_to_g_error (err, error, "vkCreateWaylandSurfaceKHR") < 0)
return NULL;
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;
}