Learning_GTK4_tree/gdk/wayland/gdkvulkancontext-wayland.c

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2023-12-12 11:36:42 +01:00
/* gdkvulkancontext-wayland.c
*
* gdkvulkancontext-wayland.c: Wayland specific Vulkan wrappers
*
* Copyright (C) 2017 Georges Basile Stavracas Neto <georges.stavracas@gmail.com>
*
* This file is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This file 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include "gdkconfig.h"
#ifdef GDK_RENDERING_VULKAN
#include "gdkvulkancontext-wayland.h"
#include "gdkwaylanddisplay.h"
#include "gdkwaylandsurface.h"
#include "gdksurface-wayland-private.h"
#include "gdkprivate-wayland.h"
G_DEFINE_TYPE (GdkWaylandVulkanContext, gdk_wayland_vulkan_context, GDK_TYPE_VULKAN_CONTEXT)
static VkResult
gdk_wayland_vulkan_context_create_surface (GdkVulkanContext *context,
VkSurfaceKHR *vr_surface)
{
GdkSurface *surface = gdk_draw_context_get_surface (GDK_DRAW_CONTEXT (context));
GdkDisplay *display = gdk_draw_context_get_display (GDK_DRAW_CONTEXT (context));
/* This is necessary so that Vulkan sees the Surface.
* Usually, vkCreateXlibSurfaceKHR() will not cause a problem to happen as
* it just creates resources, but further calls with the resulting surface
* do cause issues.
*/
gdk_display_sync (display);
return GDK_VK_CHECK (vkCreateWaylandSurfaceKHR, gdk_vulkan_context_get_instance (context),
&(VkWaylandSurfaceCreateInfoKHR) {
VK_STRUCTURE_TYPE_WAYLAND_SURFACE_CREATE_INFO_KHR,
NULL,
0,
gdk_wayland_display_get_wl_display (display),
gdk_wayland_surface_get_wl_surface (surface)
},
NULL,
vr_surface);
}
static void
gdk_vulkan_context_wayland_end_frame (GdkDrawContext *context,
cairo_region_t *painted)
{
GdkSurface *surface = gdk_draw_context_get_surface (GDK_DRAW_CONTEXT (context));
gdk_wayland_surface_sync (surface);
gdk_wayland_surface_request_frame (surface);
GDK_DRAW_CONTEXT_CLASS (gdk_wayland_vulkan_context_parent_class)->end_frame (context, painted);
gdk_wayland_surface_notify_committed (surface);
}
static void
gdk_vulkan_context_wayland_empty_frame (GdkDrawContext *context)
{
GdkSurface *surface = gdk_draw_context_get_surface (GDK_DRAW_CONTEXT (context));
GdkWaylandSurface *impl = GDK_WAYLAND_SURFACE (surface);
if (!impl->has_pending_subsurface_commits)
return;
gdk_wayland_surface_sync (surface);
gdk_wayland_surface_request_frame (surface);
gdk_wayland_surface_commit (surface);
gdk_wayland_surface_notify_committed (surface);
}
static void
gdk_wayland_vulkan_context_class_init (GdkWaylandVulkanContextClass *klass)
{
GdkVulkanContextClass *vulkan_context_class = GDK_VULKAN_CONTEXT_CLASS (klass);
GdkDrawContextClass *draw_context_class = GDK_DRAW_CONTEXT_CLASS (klass);
vulkan_context_class->create_surface = gdk_wayland_vulkan_context_create_surface;
draw_context_class->end_frame = gdk_vulkan_context_wayland_end_frame;
draw_context_class->empty_frame = gdk_vulkan_context_wayland_empty_frame;
}
static void
gdk_wayland_vulkan_context_init (GdkWaylandVulkanContext *self)
{
}
#endif /* GDK_RENDERING_VULKAN */