mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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373 lines
10 KiB
Objective-C
373 lines
10 KiB
Objective-C
/*
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* GStreamer
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* Copyright (C) 2019 Matthew Waters <matthew@centricular.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <Cocoa/Cocoa.h>
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#include <QuartzCore/QuartzCore.h>
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#include <gst/gst.h>
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#include "vkwindow_cocoa.h"
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#include "vkdisplay_cocoa.h"
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#include "vkcocoa_utils.h"
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#define GST_VULKAN_WINDOW_COCOA_GET_PRIVATE(o) \
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(G_TYPE_INSTANCE_GET_PRIVATE((o), GST_TYPE_VULKAN_WINDOW_COCOA, GstVulkanWindowCocoaPrivate))
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#define GST_CAT_DEFAULT gst_vulkan_window_cocoa_debug
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GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
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static void
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_init_debug (void)
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{
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static volatile gsize _init = 0;
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if (g_once_init_enter (&_init)) {
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GST_DEBUG_CATEGORY_INIT (GST_CAT_DEFAULT, "vulkanwindowmacos", 0,
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"Vulkan MacOS Window");
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g_once_init_leave (&_init, 1);
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}
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}
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gboolean gst_vulkan_window_cocoa_handle_event (GstVulkanWindowCocoa * window_cocoa);
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enum
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{
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PROP_0,
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};
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struct _GstVulkanWindowCocoaPrivate
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{
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gpointer internal_win_id;
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gpointer internal_view;
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gint preferred_width;
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gint preferred_height;
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gboolean visible;
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};
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#define gst_vulkan_window_cocoa_parent_class parent_class
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G_DEFINE_TYPE_WITH_CODE (GstVulkanWindowCocoa, gst_vulkan_window_cocoa,
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GST_TYPE_VULKAN_WINDOW, G_ADD_PRIVATE (GstVulkanWindowCocoa) _init_debug ());
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static VkSurfaceKHR gst_vulkan_window_cocoa_get_surface (GstVulkanWindow * window,
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GError ** error);
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static gboolean gst_vulkan_window_cocoa_get_presentation_support (GstVulkanWindow
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* window, GstVulkanDevice * device, guint32 queue_family_idx);
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static gboolean gst_vulkan_window_cocoa_open (GstVulkanWindow * window,
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GError ** error);
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static void gst_vulkan_window_cocoa_close (GstVulkanWindow * window);
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static void
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gst_vulkan_window_cocoa_finalize (GObject * object)
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{
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G_OBJECT_CLASS (parent_class)->finalize (object);
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}
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static void
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gst_vulkan_window_cocoa_class_init (GstVulkanWindowCocoaClass * klass)
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{
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GObjectClass *obj_class = G_OBJECT_CLASS (klass);
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GstVulkanWindowClass *window_class = (GstVulkanWindowClass *) klass;
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obj_class->finalize = gst_vulkan_window_cocoa_finalize;
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window_class->open = GST_DEBUG_FUNCPTR (gst_vulkan_window_cocoa_open);
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window_class->close = GST_DEBUG_FUNCPTR (gst_vulkan_window_cocoa_close);
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window_class->get_surface = gst_vulkan_window_cocoa_get_surface;
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window_class->get_presentation_support =
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gst_vulkan_window_cocoa_get_presentation_support;
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}
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static void
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gst_vulkan_window_cocoa_init (GstVulkanWindowCocoa * window)
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{
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window->priv = gst_vulkan_window_cocoa_get_instance_private (window);
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window->priv->preferred_width = 320;
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window->priv->preferred_height = 240;
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}
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/* Must be called in the gl thread */
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GstVulkanWindowCocoa *
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gst_vulkan_window_cocoa_new (GstVulkanDisplay * display)
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{
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GstVulkanWindowCocoa *window;
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_init_debug ();
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if ((gst_vulkan_display_get_handle_type (display) &
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GST_VULKAN_DISPLAY_TYPE_COCOA)
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== GST_VULKAN_DISPLAY_TYPE_NONE) {
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GST_INFO ("Wrong display type %u for this window type %u", display->type,
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GST_VULKAN_DISPLAY_TYPE_COCOA);
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return NULL;
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}
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window = g_object_new (GST_TYPE_VULKAN_WINDOW_COCOA, NULL);
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gst_object_ref_sink (window);
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return window;
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}
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static void
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_show_window (gpointer data)
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{
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GstVulkanWindowCocoa *window_cocoa = GST_VULKAN_WINDOW_COCOA (data);
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GstVulkanWindowCocoaPrivate *priv = window_cocoa->priv;
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GstVulkanNSWindow *internal_win_id = (__bridge GstVulkanNSWindow *)priv->internal_win_id;
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GST_DEBUG_OBJECT (window_cocoa, "showing");
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[internal_win_id makeMainWindow];
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[internal_win_id orderFrontRegardless];
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[internal_win_id setViewsNeedDisplay:YES];
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priv->visible = TRUE;
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}
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static void
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gst_vulkan_window_cocoa_show (GstVulkanWindow * window)
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{
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GstVulkanWindowCocoa *window_cocoa = GST_VULKAN_WINDOW_COCOA (window);
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GstVulkanWindowCocoaPrivate *priv = window_cocoa->priv;
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if (!priv->visible)
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_invoke_on_main ((GstVulkanWindowFunc) _show_window, gst_object_ref (window),
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(GDestroyNotify) gst_object_unref);
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}
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static void
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gst_vulkan_window_cocoa_hide (GstVulkanWindow * window)
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{
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// GstVulkanWindowCocoa *window_cocoa = GST_VULKAN_WINDOW_COCOA (window);
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/* FIXME: implement */
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}
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static void
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_create_window (GstVulkanWindowCocoa * window_cocoa)
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{
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GstVulkanWindowCocoaPrivate *priv = window_cocoa->priv;
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NSRect mainRect = [[NSScreen mainScreen] visibleFrame];
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gint h = priv->preferred_height;
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gint y = mainRect.size.height > h ? (mainRect.size.height - h) * 0.5 : 0;
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NSRect rect = NSMakeRect (0, y, priv->preferred_width, priv->preferred_height);
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GstVulkanNSWindow *internal_win_id;
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GstVulkanNSView *view;
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view = [[GstVulkanNSView alloc] initWithFrame:rect];
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view.wantsLayer = YES;
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internal_win_id = [[GstVulkanNSWindow alloc] initWithContentRect:rect styleMask:
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(NSWindowStyleMaskTitled | NSWindowStyleMaskClosable |
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NSWindowStyleMaskResizable | NSWindowStyleMaskMiniaturizable)
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backing: NSBackingStoreBuffered defer: NO screen: nil gstWin: window_cocoa];
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[internal_win_id setContentView:view];
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priv->internal_win_id = (__bridge_retained gpointer)internal_win_id;
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priv->internal_view = (__bridge_retained gpointer)view;
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gst_vulkan_window_cocoa_show (GST_VULKAN_WINDOW (window_cocoa));
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}
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gboolean
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gst_vulkan_window_cocoa_create_window (GstVulkanWindowCocoa * window_cocoa)
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{
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_invoke_on_main ((GstVulkanWindowFunc) _create_window,
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gst_object_ref (window_cocoa), gst_object_unref);
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g_usleep(1000000);
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return TRUE;
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}
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static VkSurfaceKHR
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gst_vulkan_window_cocoa_get_surface (GstVulkanWindow * window, GError ** error)
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{
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GstVulkanWindowCocoa *window_cocoa = GST_VULKAN_WINDOW_COCOA (window);
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VkMacOSSurfaceCreateInfoMVK info = { 0, };
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VkSurfaceKHR ret;
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VkResult err;
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info.sType = VK_STRUCTURE_TYPE_MACOS_SURFACE_CREATE_INFO_MVK;
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info.pNext = NULL;
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info.flags = 0;
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info.pView = window_cocoa->priv->internal_view;
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if (!window_cocoa->CreateMacOSSurface)
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window_cocoa->CreateMacOSSurface =
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gst_vulkan_instance_get_proc_address (window->display->instance,
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"vkCreateMacOSSurfaceMVK");
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if (!window_cocoa->CreateMacOSSurface) {
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g_set_error_literal (error, GST_VULKAN_ERROR, VK_ERROR_FEATURE_NOT_PRESENT,
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"Could not retrieve \"vkCreateMacOSSurfaceMVK\" function pointer");
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return NULL;
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}
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err =
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window_cocoa->CreateMacOSSurface (window->display->instance->instance, &info,
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NULL, &ret);
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if (gst_vulkan_error_to_g_error (err, error, "vkCreateMacOSSurfaceMVK") < 0)
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return NULL;
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return ret;
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}
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static gboolean
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gst_vulkan_window_cocoa_get_presentation_support (GstVulkanWindow * window,
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GstVulkanDevice * device, guint32 queue_family_idx)
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{
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return TRUE;
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}
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static gboolean
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gst_vulkan_window_cocoa_open (GstVulkanWindow * window, GError ** error)
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{
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GstVulkanWindowCocoa *window_cocoa = GST_VULKAN_WINDOW_COCOA (window);
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if (!GST_VULKAN_WINDOW_CLASS (parent_class)->open (window, error))
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return FALSE;
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return gst_vulkan_window_cocoa_create_window (window_cocoa);
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}
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static void
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_close_window (gpointer * data)
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{
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GstVulkanWindowCocoa *window_cocoa = GST_VULKAN_WINDOW_COCOA (data);
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GstVulkanWindow *window = GST_VULKAN_WINDOW (window_cocoa);
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GstVulkanNSWindow *internal_win_id =
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(__bridge GstVulkanNSWindow *) window_cocoa->priv->internal_win_id;
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gst_vulkan_window_cocoa_hide (window);
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[[internal_win_id contentView] removeFromSuperview];
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CFBridgingRelease (window_cocoa->priv->internal_win_id);
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window_cocoa->priv->internal_win_id = NULL;
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CFBridgingRelease (window_cocoa->priv->internal_view);
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window_cocoa->priv->internal_view = NULL;
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}
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static void
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gst_vulkan_window_cocoa_close (GstVulkanWindow * window)
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{
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_invoke_on_main ((GstVulkanWindowFunc) _close_window, gst_object_ref (window),
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(GDestroyNotify) gst_object_unref);
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GST_VULKAN_WINDOW_CLASS (parent_class)->close (window);
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}
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@implementation GstVulkanNSWindow
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- (id) initWithContentRect: (NSRect) contentRect
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styleMask: (unsigned int) styleMask
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backing: (NSBackingStoreType) bufferingType
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defer: (BOOL) flag screen: (NSScreen *) aScreen
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gstWin: (GstVulkanWindowCocoa *) cocoa {
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m_isClosed = NO;
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window_cocoa = cocoa;
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self = [super initWithContentRect: contentRect
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styleMask: styleMask backing: bufferingType
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defer: flag screen:aScreen];
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GST_DEBUG ("initializing GstVulkanNSWindow");
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[self setReleasedWhenClosed:NO];
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[self setTitle:@"Vulkan renderer"];
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[self setBackgroundColor:[NSColor blackColor]];
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[self orderOut:self];
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return self;
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}
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- (void) setClosed {
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m_isClosed = YES;
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}
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- (BOOL) isClosed {
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return m_isClosed;
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}
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- (BOOL) canBecomeMainWindow {
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return YES;
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}
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- (BOOL) canBecomeKeyWindow {
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return YES;
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}
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- (BOOL) windowShouldClose:(id)sender {
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GstVulkanWindowCocoaPrivate *priv = window_cocoa->priv;
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GstVulkanNSWindow *internal_win_id = (__bridge GstVulkanNSWindow *)priv->internal_win_id;
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GST_DEBUG ("user clicked the close button\n");
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[internal_win_id setClosed];
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return YES;
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}
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@end
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@implementation GstVulkanNSView
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-(BOOL) wantsUpdateLayer
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{
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return YES;
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}
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+(Class) layerClass
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{
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return [CAMetalLayer class];
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}
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-(CALayer*) makeBackingLayer
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{
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CALayer* layer = [self.class.layerClass layer];
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CGSize viewScale = [self convertSizeToBacking: CGSizeMake(1.0, 1.0)];
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layer.contentsScale = MIN(viewScale.width, viewScale.height);
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return layer;
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}
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@end
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void
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_invoke_on_main (GstVulkanWindowFunc func, gpointer data, GDestroyNotify notify)
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{
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if ([NSThread isMainThread]) {
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func (data);
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if (notify)
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notify (data);
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} else {
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dispatch_async (dispatch_get_main_queue (), ^{
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func (data);
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if (notify)
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notify (data);
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});
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}
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}
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