3 * Copyright (C) 2008 Julien Isorce <julien.isorce@gmail.com>
4 * Copyright (C) 2012 Matthew Waters <ystreet00@gmail.com>
5 * Copyright (C) 2019 Seungha Yang <seungha.yang@navercorp.com>
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Library General Public
9 * License as published by the Free Software Foundation; either
10 * version 2 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Library General Public License for more details.
17 * You should have received a copy of the GNU Library General Public
18 * License along with this library; if not, write to the
19 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
20 * Boston, MA 02110-1301, USA.
27 #include "gstvkwindow_win32.h"
29 LRESULT CALLBACK window_proc (HWND hWnd, UINT uMsg, WPARAM wParam,
31 LRESULT FAR PASCAL sub_class_proc (HWND hWnd, UINT uMsg, WPARAM wParam,
39 struct _GstVulkanWindowWin32Private
41 GIOChannel *msg_io_channel;
44 gint preferred_height;
47 #define GST_CAT_DEFAULT gst_vulkan_window_win32_debug
48 GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
51 GST_DEBUG_CATEGORY_GET (GST_CAT_DEFAULT, "vulkanwindow");
52 #define gst_vulkan_window_win32_parent_class parent_class
53 G_DEFINE_TYPE_WITH_CODE (GstVulkanWindowWin32, gst_vulkan_window_win32,
54 GST_TYPE_VULKAN_WINDOW, G_ADD_PRIVATE (GstVulkanWindowWin32) DEBUG_INIT);
56 static void gst_vulkan_window_win32_set_window_handle (GstVulkanWindow * window,
59 gst_vulkan_window_win32_get_surface (GstVulkanWindow * window, GError ** error);
61 gst_vulkan_window_win32_get_presentation_support (GstVulkanWindow * window,
62 GstVulkanDevice * device, guint32 queue_family_idx);
63 static gboolean gst_vulkan_window_win32_open (GstVulkanWindow * window,
65 static void gst_vulkan_window_win32_close (GstVulkanWindow * window);
66 static void release_parent_win_id (GstVulkanWindowWin32 * window_win32);
67 static void gst_vulkan_window_win32_show (GstVulkanWindowWin32 * window);
70 gst_vulkan_window_win32_class_init (GstVulkanWindowWin32Class * klass)
72 GstVulkanWindowClass *window_class = (GstVulkanWindowClass *) klass;
74 window_class->set_window_handle =
75 GST_DEBUG_FUNCPTR (gst_vulkan_window_win32_set_window_handle);
76 window_class->get_surface =
77 GST_DEBUG_FUNCPTR (gst_vulkan_window_win32_get_surface);
78 window_class->open = GST_DEBUG_FUNCPTR (gst_vulkan_window_win32_open);
79 window_class->close = GST_DEBUG_FUNCPTR (gst_vulkan_window_win32_close);
80 window_class->get_presentation_support =
81 GST_DEBUG_FUNCPTR (gst_vulkan_window_win32_get_presentation_support);
85 gst_vulkan_window_win32_init (GstVulkanWindowWin32 * window)
87 window->priv = gst_vulkan_window_win32_get_instance_private (window);
89 window->priv->preferred_width = 320;
90 window->priv->preferred_height = 240;
93 GstVulkanWindowWin32 *
94 gst_vulkan_window_win32_new (GstVulkanDisplay * display)
96 GstVulkanWindowWin32 *window;
98 if ((gst_vulkan_display_get_handle_type (display) &
99 GST_VULKAN_DISPLAY_TYPE_WIN32) == 0)
100 /* we require an win32 display to create win32 windows */
103 window = g_object_new (GST_TYPE_VULKAN_WINDOW_WIN32, NULL);
104 gst_object_ref_sink (window);
110 msg_cb (GIOChannel * source, GIOCondition condition, gpointer data)
114 if (!PeekMessage (&msg, NULL, 0, 0, PM_REMOVE))
115 return G_SOURCE_CONTINUE;
117 GST_TRACE ("handle message");
118 TranslateMessage (&msg);
119 DispatchMessage (&msg);
121 return G_SOURCE_CONTINUE;
126 GstVulkanWindowWin32 *self;
135 _create_window (CreateWindowData * data)
137 data->ret = gst_vulkan_window_win32_create_window (data->self, data->error);
139 g_mutex_lock (&data->lock);
141 g_cond_signal (&data->cond);
142 g_mutex_unlock (&data->lock);
144 return G_SOURCE_REMOVE;
148 gst_vulkan_window_win32_open (GstVulkanWindow * window, GError ** error)
150 GstVulkanWindowWin32 *window_win32 = GST_VULKAN_WINDOW_WIN32 (window);
151 GstVulkanDisplay *display;
152 GMainContext *context;
153 CreateWindowData data = { 0, };
155 if (!GST_VULKAN_WINDOW_CLASS (parent_class)->open (window, error))
158 display = gst_vulkan_window_get_display (window);
159 context = g_main_context_ref (display->main_context);
160 gst_object_unref (display);
162 window_win32->priv->msg_io_channel = g_io_channel_win32_new_messages (0);
163 window_win32->msg_source =
164 g_io_create_watch (window_win32->priv->msg_io_channel, G_IO_IN);
165 g_source_set_callback (window_win32->msg_source, (GSourceFunc) msg_cb, NULL,
167 g_source_attach (window_win32->msg_source, context);
169 data.self = window_win32;
171 g_mutex_init (&data.lock);
172 g_cond_init (&data.cond);
174 g_main_context_invoke (context, (GSourceFunc) _create_window, &data);
175 g_mutex_lock (&data.lock);
177 g_cond_wait (&data.cond, &data.lock);
178 g_mutex_unlock (&data.lock);
180 g_mutex_clear (&data.lock);
181 g_cond_clear (&data.cond);
182 g_main_context_unref (context);
187 gst_vulkan_window_win32_show (window_win32);
193 gst_vulkan_window_win32_close (GstVulkanWindow * window)
195 GstVulkanWindowWin32 *window_win32 = GST_VULKAN_WINDOW_WIN32 (window);
197 release_parent_win_id (window_win32);
199 if (window_win32->internal_win_id) {
200 RemoveProp (window_win32->internal_win_id, "vulkan_window");
201 ShowWindow (window_win32->internal_win_id, SW_HIDE);
202 SetParent (window_win32->internal_win_id, NULL);
203 if (!DestroyWindow (window_win32->internal_win_id))
204 GST_WARNING ("failed to destroy window %" G_GUINTPTR_FORMAT
205 ", 0x%x", (guintptr) window_win32->internal_win_id,
206 (unsigned int) GetLastError ());
209 g_source_destroy (window_win32->msg_source);
210 g_source_unref (window_win32->msg_source);
211 window_win32->msg_source = NULL;
212 g_io_channel_unref (window_win32->priv->msg_io_channel);
213 window_win32->priv->msg_io_channel = NULL;
215 GST_VULKAN_WINDOW_CLASS (parent_class)->close (window);
219 set_parent_win_id (GstVulkanWindowWin32 * window_win32)
221 WNDPROC window_parent_proc;
224 if (!window_win32->parent_win_id) {
225 /* no parent so the internal window needs borders and system menu */
226 SetWindowLongPtr (window_win32->internal_win_id, GWL_STYLE,
227 WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_OVERLAPPEDWINDOW);
228 SetParent (window_win32->internal_win_id, NULL);
233 (WNDPROC) GetWindowLongPtr (window_win32->parent_win_id, GWLP_WNDPROC);
235 GST_DEBUG ("set parent %" G_GUINTPTR_FORMAT,
236 (guintptr) window_win32->parent_win_id);
238 SetProp (window_win32->parent_win_id, "vulkan_window_id",
239 window_win32->internal_win_id);
240 SetProp (window_win32->parent_win_id, "vulkan_window_parent_proc",
241 (WNDPROC) window_parent_proc);
242 SetWindowLongPtr (window_win32->parent_win_id, GWLP_WNDPROC,
243 (LONG_PTR) sub_class_proc);
245 SetWindowLongPtr (window_win32->internal_win_id, GWL_STYLE,
246 WS_CHILD | WS_MAXIMIZE);
247 SetParent (window_win32->internal_win_id, window_win32->parent_win_id);
249 /* take changes into account: SWP_FRAMECHANGED */
250 GetClientRect (window_win32->parent_win_id, &rect);
251 SetWindowPos (window_win32->internal_win_id, HWND_TOP, rect.left, rect.top,
252 rect.right, rect.bottom,
253 SWP_ASYNCWINDOWPOS | SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER |
254 SWP_FRAMECHANGED | SWP_NOACTIVATE);
255 MoveWindow (window_win32->internal_win_id, rect.left, rect.top, rect.right,
260 release_parent_win_id (GstVulkanWindowWin32 * window_win32)
264 if (!window_win32->parent_win_id)
268 GetProp (window_win32->parent_win_id, "vulkan_window_parent_proc");
272 GST_DEBUG ("release parent %" G_GUINTPTR_FORMAT,
273 (guintptr) window_win32->parent_win_id);
275 SetWindowLongPtr (window_win32->parent_win_id, GWLP_WNDPROC,
276 (LONG_PTR) parent_proc);
278 RemoveProp (window_win32->parent_win_id, "vulkan_window_parent_proc");
282 gst_vulkan_window_win32_create_window (GstVulkanWindowWin32 * window_win32,
287 HINSTANCE hinstance = GetModuleHandle (NULL);
292 GST_LOG ("Attempting to create a win32 window");
297 atom = GetClassInfoEx (hinstance, "GSTVULKAN", &wc);
300 ZeroMemory (&wc, sizeof (WNDCLASSEX));
302 wc.cbSize = sizeof (WNDCLASSEX);
303 wc.lpfnWndProc = window_proc;
306 wc.hInstance = hinstance;
307 wc.hIcon = LoadIcon (NULL, IDI_WINLOGO);
309 wc.style = CS_OWNDC | CS_HREDRAW | CS_VREDRAW;
310 wc.hCursor = LoadCursor (NULL, IDC_ARROW);
311 wc.hbrBackground = (HBRUSH) GetStockObject (BLACK_BRUSH);
312 wc.lpszMenuName = NULL;
313 wc.lpszClassName = "GSTVULKAN";
315 atom = RegisterClassEx (&wc);
318 g_set_error (error, GST_VULKAN_WINDOW_ERROR,
319 GST_VULKAN_WINDOW_ERROR_RESOURCE_UNAVAILABLE,
320 "Failed to register window class 0x%x\n",
321 (unsigned int) GetLastError ());
326 window_win32->internal_win_id = 0;
327 window_win32->device = 0;
328 window_win32->visible = FALSE;
330 window_win32->internal_win_id = CreateWindowEx (0,
333 WS_CLIPSIBLINGS | WS_CLIPCHILDREN | WS_OVERLAPPEDWINDOW,
334 x, y, 0, 0, (HWND) NULL, (HMENU) NULL, hinstance, window_win32);
336 if (!window_win32->internal_win_id) {
337 g_set_error (error, GST_VULKAN_WINDOW_ERROR,
338 GST_VULKAN_WINDOW_ERROR_RESOURCE_UNAVAILABLE,
339 "failed to create vulkan window");
343 GST_DEBUG ("vulkan window created: %" G_GUINTPTR_FORMAT,
344 (guintptr) window_win32->internal_win_id);
346 /* device is set in the window_proc */
347 if (!window_win32->device) {
348 g_set_error (error, GST_VULKAN_WINDOW_ERROR,
349 GST_VULKAN_WINDOW_ERROR_RESOURCE_UNAVAILABLE,
350 "failed to create device");
356 GST_LOG ("Created a win32 window");
358 /* The window has been created as if it had no parent, so there is nothing
359 * else to do in that case. Even if user has already set a window,
360 * parent_win_id could still be 0 at this point, and in that case calling
361 * set_parent_win_id() here would steal focus from the parent window. */
362 if (window_win32->parent_win_id)
363 set_parent_win_id (window_win32);
372 gst_vulkan_window_win32_get_surface (GstVulkanWindow * window, GError ** error)
374 GstVulkanWindowWin32 *window_win32 = GST_VULKAN_WINDOW_WIN32 (window);
375 VkWin32SurfaceCreateInfoKHR info = { 0, };
379 info.sType = VK_STRUCTURE_TYPE_WIN32_SURFACE_CREATE_INFO_KHR;
382 info.hinstance = GetModuleHandle (NULL);
383 info.hwnd = window_win32->parent_win_id ? window_win32->parent_win_id :
384 window_win32->internal_win_id;
386 if (!window_win32->CreateWin32Surface)
387 window_win32->CreateWin32Surface =
388 gst_vulkan_instance_get_proc_address (window->display->instance,
389 "vkCreateWin32SurfaceKHR");
390 if (!window_win32->CreateWin32Surface) {
391 g_set_error_literal (error, GST_VULKAN_ERROR, VK_ERROR_FEATURE_NOT_PRESENT,
392 "Could not retrieve \"vkCreateWin32SurfaceKHR\" function pointer");
397 window_win32->CreateWin32Surface (window->display->instance->instance,
400 if (gst_vulkan_error_to_g_error (err, error, "vkCreateWin32SurfaceKHR") < 0)
407 gst_vulkan_window_win32_get_presentation_support (GstVulkanWindow * window,
408 GstVulkanDevice * device, guint32 queue_family_idx)
410 GstVulkanWindowWin32 *window_win32 = GST_VULKAN_WINDOW_WIN32 (window);
411 VkPhysicalDevice gpu;
413 if (!window_win32->GetPhysicalDeviceWin32PresentationSupport)
414 window_win32->GetPhysicalDeviceWin32PresentationSupport =
415 gst_vulkan_instance_get_proc_address (window->display->instance,
416 "vkGetPhysicalDeviceWin32PresentationSupportKHR");
417 if (!window_win32->GetPhysicalDeviceWin32PresentationSupport) {
418 GST_WARNING_OBJECT (window, "Could not retrieve "
419 "\"GetPhysicalDeviceWin32PresentationSupport\" " "function pointer");
423 gpu = gst_vulkan_device_get_physical_device (device);
424 if (window_win32->GetPhysicalDeviceWin32PresentationSupport (gpu,
433 gst_vulkan_window_win32_set_window_handle (GstVulkanWindow * window,
436 GstVulkanWindowWin32 *window_win32;
438 window_win32 = GST_VULKAN_WINDOW_WIN32 (window);
440 if (!window_win32->internal_win_id) {
441 window_win32->parent_win_id = (HWND) id;
445 if (window_win32->visible) {
446 ShowWindow (window_win32->internal_win_id, SW_HIDE);
447 window_win32->visible = FALSE;
450 release_parent_win_id (window_win32);
451 window_win32->parent_win_id = (HWND) id;
452 set_parent_win_id (window_win32);
456 gst_vulkan_window_win32_show (GstVulkanWindowWin32 * window)
458 gint width = window->priv->preferred_width;
459 gint height = window->priv->preferred_height;
461 if (!window->visible) {
462 HWND parent_id = window->parent_win_id;
464 /* if no parent the real size has to be set now because this has not been done
465 * when at window creation */
468 GetClientRect (window->internal_win_id, &rect);
469 width += 2 * GetSystemMetrics (SM_CXSIZEFRAME);
471 2 * GetSystemMetrics (SM_CYSIZEFRAME) +
472 GetSystemMetrics (SM_CYCAPTION);
473 MoveWindow (window->internal_win_id, rect.left, rect.top, width,
477 ShowWindowAsync (window->internal_win_id, SW_SHOW);
478 window->visible = TRUE;
485 window_proc (HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
487 GstVulkanWindowWin32 *window_win32;
490 if (uMsg == WM_CREATE) {
492 GST_VULKAN_WINDOW_WIN32 (((LPCREATESTRUCT) lParam)->lpCreateParams);
494 GST_TRACE ("WM_CREATE");
496 window_win32->device = GetDC (hWnd);
497 /* Do this, otherwise we hang on exit. We can still use it (due to the
498 * CS_OWNDC flag in the WindowClass) after we have Released.
500 ReleaseDC (hWnd, window_win32->device);
502 SetProp (hWnd, "vulkan_window", window_win32);
503 } else if (GetProp (hWnd, "vulkan_window")) {
504 GstVulkanWindow *window;
506 window_win32 = GST_VULKAN_WINDOW_WIN32 (GetProp (hWnd, "vulkan_window"));
507 window = GST_VULKAN_WINDOW (window_win32);
509 g_assert (window_win32->internal_win_id == hWnd);
513 gst_vulkan_window_resize (window, LOWORD (lParam), HIWORD (lParam));
519 BeginPaint (hWnd, &ps);
520 gst_vulkan_window_redraw (window);
521 EndPaint (hWnd, &ps);
526 ShowWindowAsync (window_win32->internal_win_id, SW_HIDE);
528 gst_vulkan_window_win32_close (window);
538 /* transmit messages to the parent (ex: mouse/keyboard input) */
539 HWND parent_id = window_win32->parent_win_id;
541 PostMessage (parent_id, uMsg, wParam, lParam);
542 ret = DefWindowProc (hWnd, uMsg, wParam, lParam);
547 ret = DefWindowProc (hWnd, uMsg, wParam, lParam);
554 sub_class_proc (HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
556 WNDPROC window_parent_proc = GetProp (hWnd, "vulkan_window_parent_proc");
558 if (uMsg == WM_SIZE) {
559 HWND vulkan_window_id = GetProp (hWnd, "vulkan_window_id");
560 MoveWindow (vulkan_window_id, 0, 0, LOWORD (lParam), HIWORD (lParam),
564 return CallWindowProc (window_parent_proc, hWnd, uMsg, wParam, lParam);