gstreamer/ext/vulkan/xcb/vkwindow_xcb.c

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/*
* GStreamer
* Copyright (C) 2015 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.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <gst/gst.h>
#include <locale.h>
#include "vkwindow_xcb.h"
#include "vkdisplay_xcb.h"
#define GST_VULKAN_WINDOW_XCB_GET_PRIVATE(o) \
(G_TYPE_INSTANCE_GET_PRIVATE((o), GST_TYPE_VULKAN_WINDOW_XCB, GstVulkanWindowXCBPrivate))
#define GST_CAT_DEFAULT gst_vulkan_window_xcb_debug
GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
static void
_init_debug (void)
{
static volatile 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_xcb_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE (GstVulkanWindowXCB, gst_vulkan_window_xcb,
GST_TYPE_VULKAN_WINDOW, _init_debug ());
gboolean gst_vulkan_window_xcb_handle_event (GstVulkanWindowXCB * window_xcb);
enum
{
PROP_0,
};
struct _GstVulkanWindowXCBPrivate
{
gboolean activate;
gboolean activate_result;
gint preferred_width;
gint preferred_height;
xcb_intern_atom_reply_t *atom_wm_delete_window;
};
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static VkSurfaceKHR gst_vulkan_window_xcb_get_surface (GstVulkanWindow * window,
GError ** error);
static gboolean gst_vulkan_window_xcb_get_presentation_support (GstVulkanWindow
* window, GstVulkanDevice * device, guint32 queue_family_idx);
static gboolean gst_vulkan_window_xcb_open (GstVulkanWindow * window,
GError ** error);
static void gst_vulkan_window_xcb_close (GstVulkanWindow * window);
static void
gst_vulkan_window_xcb_finalize (GObject * object)
{
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gst_vulkan_window_xcb_class_init (GstVulkanWindowXCBClass * klass)
{
GObjectClass *obj_class = G_OBJECT_CLASS (klass);
GstVulkanWindowClass *window_class = (GstVulkanWindowClass *) klass;
g_type_class_add_private (klass, sizeof (GstVulkanWindowXCBPrivate));
obj_class->finalize = gst_vulkan_window_xcb_finalize;
window_class->open = GST_DEBUG_FUNCPTR (gst_vulkan_window_xcb_open);
window_class->close = GST_DEBUG_FUNCPTR (gst_vulkan_window_xcb_close);
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window_class->get_surface = gst_vulkan_window_xcb_get_surface;
window_class->get_presentation_support =
gst_vulkan_window_xcb_get_presentation_support;
}
static void
gst_vulkan_window_xcb_init (GstVulkanWindowXCB * window)
{
window->priv = GST_VULKAN_WINDOW_XCB_GET_PRIVATE (window);
}
/* Must be called in the gl thread */
GstVulkanWindowXCB *
gst_vulkan_window_xcb_new (GstVulkanDisplay * display)
{
_init_debug ();
if ((gst_vulkan_display_get_handle_type (display) &
GST_VULKAN_DISPLAY_TYPE_XCB)
== GST_VULKAN_DISPLAY_TYPE_NONE) {
GST_INFO ("Wrong display type %u for this window type %u", display->type,
GST_VULKAN_DISPLAY_TYPE_XCB);
return NULL;
}
return g_object_new (GST_TYPE_VULKAN_WINDOW_XCB, NULL);
}
static void
gst_vulkan_window_xcb_show (GstVulkanWindow * window)
{
GstVulkanWindowXCB *window_xcb = GST_VULKAN_WINDOW_XCB (window);
GstVulkanDisplayXCB *display_xcb = GST_VULKAN_DISPLAY_XCB (window->display);
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xcb_connection_t *connection =
GST_VULKAN_DISPLAY_XCB_CONNECTION (display_xcb);
if (!window_xcb->visible) {
xcb_map_window (connection, window_xcb->win_id);
window_xcb->visible = TRUE;
}
}
static void
gst_vulkan_window_xcb_hide (GstVulkanWindow * window)
{
GstVulkanWindowXCB *window_xcb = GST_VULKAN_WINDOW_XCB (window);
GstVulkanDisplayXCB *display_xcb = GST_VULKAN_DISPLAY_XCB (window->display);
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xcb_connection_t *connection =
GST_VULKAN_DISPLAY_XCB_CONNECTION (display_xcb);
if (window_xcb->visible) {
xcb_unmap_window (connection, window_xcb->win_id);
window_xcb->visible = FALSE;
}
}
gboolean
gst_vulkan_window_xcb_create_window (GstVulkanWindowXCB * window_xcb)
{
GstVulkanDisplayXCB *display_xcb;
xcb_connection_t *connection;
xcb_screen_t *screen;
xcb_window_t root_window;
uint32_t value_mask, value_list[32];
xcb_intern_atom_cookie_t cookie, cookie2;
xcb_intern_atom_reply_t *reply, *reply2;
// const gchar *title = "OpenGL renderer";
gint x = 0, y = 0, width = 320, height = 240;
display_xcb =
GST_VULKAN_DISPLAY_XCB (GST_VULKAN_WINDOW (window_xcb)->display);
connection = GST_VULKAN_DISPLAY_XCB_CONNECTION (display_xcb);
root_window = GST_VULKAN_DISPLAY_XCB_ROOT_WINDOW (display_xcb);
screen = GST_VULKAN_DISPLAY_XCB_SCREEN (display_xcb);
window_xcb->win_id = xcb_generate_id (connection);
value_mask = XCB_CW_BACK_PIXEL | XCB_CW_EVENT_MASK;
value_list[0] = screen->black_pixel;
value_list[1] =
XCB_EVENT_MASK_KEY_RELEASE | XCB_EVENT_MASK_EXPOSURE |
XCB_EVENT_MASK_STRUCTURE_NOTIFY;
xcb_create_window (connection, XCB_COPY_FROM_PARENT, window_xcb->win_id,
root_window, x, y, width, height, 0, XCB_WINDOW_CLASS_INPUT_OUTPUT,
screen->root_visual, value_mask, value_list);
GST_LOG_OBJECT (window_xcb, "gl window id: %p",
(gpointer) (guintptr) window_xcb->win_id);
GST_LOG_OBJECT (window_xcb, "gl window props: x:%d y:%d", x, y);
/* Magic code that will send notification when window is destroyed */
cookie = xcb_intern_atom (connection, 1, 12, "WM_PROTOCOLS");
reply = xcb_intern_atom_reply (connection, cookie, 0);
cookie2 = xcb_intern_atom (connection, 0, 16, "WM_DELETE_WINDOW");
reply2 = xcb_intern_atom_reply (connection, cookie2, 0);
xcb_change_property (connection, XCB_PROP_MODE_REPLACE, window_xcb->win_id,
reply->atom, 4, 32, 1, &reply2->atom);
g_free (reply);
g_free (reply2);
gst_vulkan_window_xcb_show (GST_VULKAN_WINDOW (window_xcb));
return TRUE;
}
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static VkSurfaceKHR
gst_vulkan_window_xcb_get_surface (GstVulkanWindow * window, GError ** error)
{
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VkSurfaceKHR ret;
VkResult err;
err = vkCreateXcbSurfaceKHR (window->display->instance->instance,
GST_VULKAN_DISPLAY_XCB_CONNECTION (window->display),
GST_VULKAN_WINDOW_XCB (window)->win_id, NULL, &ret);
if (gst_vulkan_error_to_g_error (err, error, "vkCreateXcbSurfaceKHR") < 0)
return NULL;
return ret;
}
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static gboolean
gst_vulkan_window_xcb_get_presentation_support (GstVulkanWindow * window,
GstVulkanDevice * device, guint32 queue_family_idx)
{
VkPhysicalDevice gpu;
xcb_screen_t *screen;
screen = GST_VULKAN_DISPLAY_XCB_SCREEN (window->display);
gpu = gst_vulkan_device_get_physical_device (device);
if (vkGetPhysicalDeviceXcbPresentationSupportKHR (gpu, queue_family_idx,
GST_VULKAN_DISPLAY_XCB_CONNECTION (window->display),
screen->root_visual))
return TRUE;
return FALSE;
}
static gboolean
gst_vulkan_window_xcb_open (GstVulkanWindow * window, GError ** error)
{
GstVulkanWindowXCB *window_xcb = GST_VULKAN_WINDOW_XCB (window);
GstVulkanDisplayXCB *display_xcb = (GstVulkanDisplayXCB *) window->display;
xcb_connection_t *connection;
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connection = GST_VULKAN_DISPLAY_XCB_CONNECTION (display_xcb);
if (connection == NULL) {
g_set_error (error, GST_VULKAN_WINDOW_ERROR,
GST_VULKAN_WINDOW_ERROR_RESOURCE_UNAVAILABLE,
"Failed to connect to X display server with XCB");
goto failure;
}
if (!GST_VULKAN_WINDOW_CLASS (parent_class)->open (window, error))
return FALSE;
return gst_vulkan_window_xcb_create_window (window_xcb);
failure:
return FALSE;
}
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static void
gst_vulkan_window_xcb_close (GstVulkanWindow * window)
{
GstVulkanWindowXCB *window_xcb = GST_VULKAN_WINDOW_XCB (window);
GstVulkanDisplayXCB *display_xcb = (GstVulkanDisplayXCB *) window->display;
xcb_connection_t *connection =
GST_VULKAN_DISPLAY_XCB_CONNECTION (display_xcb);
if (connection) {
gst_vulkan_window_xcb_hide (window);
g_free (window_xcb->priv->atom_wm_delete_window);
window_xcb->priv->atom_wm_delete_window = NULL;
GST_DEBUG ("display receiver closed");
}
GST_VULKAN_WINDOW_CLASS (parent_class)->close (window);
}