mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-09-08 13:18:52 +00:00
The functionality is provided by draw anyway and is leftover from X11's specific threading requirements that no longer apply.
532 lines
16 KiB
Objective-C
532 lines
16 KiB
Objective-C
/*
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* GStreamer
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* Copyright (C) 2008 Julien Isorce <julien.isorce@gmail.com>
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* Copyright (C) 2014 Sebastian Dröge <sebastian@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 un der 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 "gstgl_cocoa_private.h"
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/* =============================================================*/
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/* */
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/* GstGLNSWindow declaration */
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/* */
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/* =============================================================*/
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@interface GstGLNSWindow: NSWindow {
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BOOL m_isClosed;
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GstGLWindowCocoa *window_cocoa;
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}
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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: (GstGLWindowCocoa *) window;
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- (void) setClosed;
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- (BOOL) isClosed;
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- (BOOL) canBecomeMainWindow;
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- (BOOL) canBecomeKeyWindow;
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@end
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/* =============================================================*/
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/* */
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/* GstGLWindow */
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/* */
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/* =============================================================*/
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#define GST_GL_WINDOW_COCOA_GET_PRIVATE(o) \
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(G_TYPE_INSTANCE_GET_PRIVATE((o), GST_GL_TYPE_WINDOW_COCOA, GstGLWindowCocoaPrivate))
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#define GST_CAT_DEFAULT gst_gl_window_cocoa_debug
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GST_DEBUG_CATEGORY_STATIC (GST_CAT_DEFAULT);
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#define DEBUG_INIT \
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GST_DEBUG_CATEGORY_GET (GST_CAT_DEFAULT, "glwindow");
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#define gst_gl_window_cocoa_parent_class parent_class
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G_DEFINE_TYPE_WITH_CODE (GstGLWindowCocoa, gst_gl_window_cocoa, GST_GL_TYPE_WINDOW, DEBUG_INIT);
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static void gst_gl_window_cocoa_finalize (GObject * object);
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static gboolean gst_gl_window_cocoa_open (GstGLWindow *window, GError **err);
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static void gst_gl_window_cocoa_close (GstGLWindow *window);
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static guintptr gst_gl_window_cocoa_get_window_handle (GstGLWindow * window);
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static void gst_gl_window_cocoa_set_window_handle (GstGLWindow * window,
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guintptr handle);
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static void gst_gl_window_cocoa_draw (GstGLWindow * window);
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static void gst_gl_window_cocoa_set_preferred_size (GstGLWindow * window,
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gint width, gint height);
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static void gst_gl_window_cocoa_show (GstGLWindow * window);
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static void gst_gl_window_cocoa_queue_resize (GstGLWindow * window);
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struct _GstGLWindowCocoaPrivate
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{
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GstGLNSWindow *internal_win_id;
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NSView *external_view;
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gboolean visible;
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gint preferred_width;
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gint preferred_height;
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GLint viewport_dim[4];
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/* atomic set when the internal NSView has been created */
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int view_ready;
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};
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static void
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gst_gl_window_cocoa_class_init (GstGLWindowCocoaClass * klass)
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{
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GstGLWindowClass *window_class = (GstGLWindowClass *) klass;
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GObjectClass *gobject_class = (GObjectClass *) klass;
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g_type_class_add_private (klass, sizeof (GstGLWindowCocoaPrivate));
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window_class->open = GST_DEBUG_FUNCPTR (gst_gl_window_cocoa_open);
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window_class->close = GST_DEBUG_FUNCPTR (gst_gl_window_cocoa_close);
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window_class->get_window_handle =
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GST_DEBUG_FUNCPTR (gst_gl_window_cocoa_get_window_handle);
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window_class->set_window_handle =
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GST_DEBUG_FUNCPTR (gst_gl_window_cocoa_set_window_handle);
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window_class->draw = GST_DEBUG_FUNCPTR (gst_gl_window_cocoa_draw);
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window_class->set_preferred_size =
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GST_DEBUG_FUNCPTR (gst_gl_window_cocoa_set_preferred_size);
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window_class->show = GST_DEBUG_FUNCPTR (gst_gl_window_cocoa_show);
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window_class->queue_resize = GST_DEBUG_FUNCPTR (gst_gl_window_cocoa_queue_resize);
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gobject_class->finalize = gst_gl_window_cocoa_finalize;
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}
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static void
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gst_gl_window_cocoa_init (GstGLWindowCocoa * window)
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{
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window->priv = GST_GL_WINDOW_COCOA_GET_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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static void
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gst_gl_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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GstGLWindowCocoa *
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gst_gl_window_cocoa_new (GstGLDisplay * display)
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{
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if ((gst_gl_display_get_handle_type (display) & GST_GL_DISPLAY_TYPE_COCOA) == 0)
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/* we require an cocoa display to create CGL windows */
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return NULL;
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return g_object_new (GST_GL_TYPE_WINDOW_COCOA, NULL);
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}
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/* Must be called from the main thread */
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gboolean
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gst_gl_window_cocoa_create_window (GstGLWindowCocoa *window_cocoa)
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{
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GstGLWindowCocoaPrivate *priv = window_cocoa->priv;
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GstGLWindow *window = GST_GL_WINDOW (window_cocoa);
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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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NSRect windowRect = NSMakeRect (0, y, priv->preferred_width, priv->preferred_height);
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GstGLContext *context = gst_gl_window_get_context (window);
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GstGLContextCocoa *context_cocoa = GST_GL_CONTEXT_COCOA (context);
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GstGLCAOpenGLLayer *layer = [[GstGLCAOpenGLLayer alloc] initWithGstGLContext:context_cocoa];
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GstGLNSView *glView = [[GstGLNSView alloc] initWithFrameLayer:window_cocoa rect:windowRect layer:layer];
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gst_object_unref (context);
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priv->internal_win_id = [[GstGLNSWindow alloc] initWithContentRect:rect styleMask:
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(NSTitledWindowMask | NSClosableWindowMask |
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NSResizableWindowMask | NSMiniaturizableWindowMask)
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backing: NSBackingStoreBuffered defer: NO screen: nil gstWin: window_cocoa];
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GST_DEBUG ("NSWindow id: %"G_GUINTPTR_FORMAT, (guintptr) priv->internal_win_id);
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[priv->internal_win_id setContentView:glView];
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g_atomic_int_set (&window_cocoa->priv->view_ready, 1);
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return TRUE;
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}
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static gboolean
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gst_gl_window_cocoa_open (GstGLWindow *window, GError **err)
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{
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GstGLWindowCocoa *window_cocoa;
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window_cocoa = GST_GL_WINDOW_COCOA (window);
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return TRUE;
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}
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static void
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gst_gl_window_cocoa_close (GstGLWindow *window)
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{
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GstGLWindowCocoa *window_cocoa = GST_GL_WINDOW_COCOA (window);
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[window_cocoa->priv->internal_win_id release];
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window_cocoa->priv->internal_win_id = nil;
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}
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static guintptr
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gst_gl_window_cocoa_get_window_handle (GstGLWindow *window)
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{
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return (guintptr) GST_GL_WINDOW_COCOA (window)->priv->internal_win_id;
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}
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static void
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gst_gl_window_cocoa_set_window_handle (GstGLWindow * window, guintptr handle)
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{
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GstGLWindowCocoa *window_cocoa;
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GstGLWindowCocoaPrivate *priv;
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window_cocoa = GST_GL_WINDOW_COCOA (window);
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priv = window_cocoa->priv;
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if (priv->internal_win_id) {
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if (handle) {
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priv->external_view = (NSView *) handle;
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priv->visible = TRUE;
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} else {
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/* bring back our internal window */
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priv->external_view = 0;
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priv->visible = FALSE;
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}
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dispatch_async (dispatch_get_main_queue (), ^{
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NSView *view = [window_cocoa->priv->internal_win_id contentView];
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[window_cocoa->priv->internal_win_id orderOut:window_cocoa->priv->internal_win_id];
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[window_cocoa->priv->external_view addSubview: view];
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[view setFrame: [window_cocoa->priv->external_view bounds]];
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[view setAutoresizingMask: NSViewWidthSizable|NSViewHeightSizable];
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});
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} else {
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/* no internal window yet so delay it to the next drawing */
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priv->external_view = (NSView*) handle;
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priv->visible = FALSE;
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}
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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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GstGLWindowCocoa *window_cocoa = GST_GL_WINDOW_COCOA (data);
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GstGLWindowCocoaPrivate *priv = window_cocoa->priv;
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GST_DEBUG_OBJECT (window_cocoa, "make the window available\n");
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[priv->internal_win_id makeMainWindow];
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[priv->internal_win_id orderFrontRegardless];
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[priv->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_gl_window_cocoa_show (GstGLWindow * window)
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{
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GstGLWindowCocoa *window_cocoa = GST_GL_WINDOW_COCOA (window);
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GstGLWindowCocoaPrivate *priv = window_cocoa->priv;
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if (!priv->visible) {
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/* useful when set_window_handle is called before
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* the internal NSWindow */
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if (priv->external_view) {
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gst_gl_window_cocoa_set_window_handle (window, (guintptr) priv->external_view);
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priv->visible = TRUE;
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return;
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}
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if (!priv->external_view && !priv->visible)
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_invoke_on_main ((GstGLWindowCB) _show_window, window);
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}
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}
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static void
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gst_gl_window_cocoa_queue_resize (GstGLWindow * window)
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{
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GstGLWindowCocoa *window_cocoa = GST_GL_WINDOW_COCOA (window);
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GstGLNSView *view;
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if (!g_atomic_int_get (&window_cocoa->priv->view_ready))
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return;
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view = (GstGLNSView *)[window_cocoa->priv->internal_win_id contentView];
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[view->layer queueResize];
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}
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static void
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gst_gl_window_cocoa_draw (GstGLWindow * window)
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{
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GstGLWindowCocoa *window_cocoa = GST_GL_WINDOW_COCOA (window);
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GstGLNSView *view;
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/* As the view is created asynchronously in the main thread we cannot know
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* exactly when it will be ready to draw to */
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if (!g_atomic_int_get (&window_cocoa->priv->view_ready))
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return;
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view = (GstGLNSView *)[window_cocoa->priv->internal_win_id contentView];
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/* this redraws the GstGLCAOpenGLLayer which calls
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* gst_gl_window_cocoa_draw_thread(). Use an explicit CATransaction since we
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* don't know how often the main runloop is running.
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*/
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[CATransaction begin];
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[view setNeedsDisplay:YES];
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[CATransaction commit];
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}
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static void
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gst_gl_window_cocoa_set_preferred_size (GstGLWindow * window, gint width,
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gint height)
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{
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GstGLWindowCocoa *window_cocoa = GST_GL_WINDOW_COCOA (window);
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window_cocoa->priv->preferred_width = width;
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window_cocoa->priv->preferred_height = height;
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}
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static void
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gst_gl_cocoa_draw_cb (GstGLWindowCocoa *window_cocoa)
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{
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GstGLWindowCocoaPrivate *priv = window_cocoa->priv;
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GstGLWindow *window = GST_GL_WINDOW (window_cocoa);
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if (gst_gl_window_is_running (window)) {
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if (![priv->internal_win_id isClosed]) {
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GstGLWindow *window = GST_GL_WINDOW (window_cocoa);
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/* draw opengl scene in the back buffer */
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if (window->draw)
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window->draw (window->draw_data);
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}
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}
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}
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static void
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gst_gl_cocoa_resize_cb (GstGLNSView * view, guint width, guint height)
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{
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NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
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GstGLWindowCocoa *window_cocoa = view->window_cocoa;
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GstGLWindow *window = GST_GL_WINDOW (window_cocoa);
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GstGLContext *context = gst_gl_window_get_context (window);
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if (gst_gl_window_is_running (window) && ![window_cocoa->priv->internal_win_id isClosed]) {
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const GstGLFuncs *gl;
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NSRect bounds = [view bounds];
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NSRect visibleRect = [view visibleRect];
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gint viewport_dim[4];
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gl = context->gl_vtable;
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#if MAC_OS_X_VERSION_MAX_ALLOWED >= 1070
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bounds = [view convertRectToBacking:bounds];
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visibleRect = [view convertRectToBacking:visibleRect];
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#endif
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GST_DEBUG_OBJECT (window, "Window resized: bounds %lf %lf %lf %lf "
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"visibleRect %lf %lf %lf %lf",
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bounds.origin.x, bounds.origin.y,
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bounds.size.width, bounds.size.height,
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visibleRect.origin.x, visibleRect.origin.y,
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visibleRect.size.width, visibleRect.size.height);
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gst_gl_window_resize (window, width, height);
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gl->GetIntegerv (GL_VIEWPORT, viewport_dim);
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gl->Viewport (viewport_dim[0] - visibleRect.origin.x,
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viewport_dim[1] - visibleRect.origin.y,
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viewport_dim[2], viewport_dim[3]);
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}
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gst_object_unref (context);
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[pool release];
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}
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/* =============================================================*/
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/* */
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/* GstGLNSWindow implementation */
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/* */
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/* =============================================================*/
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/* Must be called from the main thread */
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@implementation GstGLNSWindow
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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: (GstGLWindowCocoa *) 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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[self setReleasedWhenClosed:NO];
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GST_DEBUG ("initializing GstGLNSWindow\n");
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[self setTitle:@"OpenGL renderer"];
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[self setBackgroundColor:[NSColor blackColor]];
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[self orderOut:window_cocoa->priv->internal_win_id];
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if (window_cocoa->priv->external_view) {
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NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
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NSView *view = [window_cocoa->priv->internal_win_id contentView];
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[window_cocoa->priv->external_view addSubview: view];
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[view setFrame: [window_cocoa->priv->external_view bounds]];
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[view setAutoresizingMask: NSViewWidthSizable|NSViewHeightSizable];
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[pool release];
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}
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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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static void
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close_window_cb (gpointer data)
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{
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GstGLWindowCocoa *window_cocoa = data;
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GstGLWindow *window;
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window = GST_GL_WINDOW (window_cocoa);
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if (window->close) {
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window->close (window->close_data);
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}
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}
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/* Called in the main thread which is never the gl thread */
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- (BOOL) windowShouldClose:(id)sender {
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GST_DEBUG ("user clicked the close button\n");
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[window_cocoa->priv->internal_win_id setClosed];
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gst_gl_window_send_message_async (GST_GL_WINDOW (window_cocoa),
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(GstGLWindowCB) close_window_cb, gst_object_ref (window_cocoa),
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(GDestroyNotify) gst_object_unref);
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return YES;
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}
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@end
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/* =============================================================*/
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/* */
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/* GstGLNSView implementation */
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/* */
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/* =============================================================*/
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@implementation GstGLNSView
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/* Must be called from the application main thread */
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- (id)initWithFrameLayer:(GstGLWindowCocoa *)window rect:(NSRect)contentRect layer:(CALayer *)layerContent {
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self = [super initWithFrame: contentRect];
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window_cocoa = window;
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/* The order of the next two calls matters. This creates a layer-hosted
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* NSView. Calling setWantsLayer before setLayer will create a
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* layer-backed NSView. See the apple developer documentation on the
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* difference.
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*/
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[self setLayer:layerContent];
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[self setWantsLayer:YES];
|
|
self->layer = (GstGLCAOpenGLLayer *)layerContent;
|
|
[self->layer setDrawCallback:(GstGLWindowCB)gst_gl_cocoa_draw_cb
|
|
data:window notify:NULL];
|
|
[self->layer setResizeCallback:(GstGLWindowResizeCB)gst_gl_cocoa_resize_cb
|
|
data:self notify:NULL];
|
|
|
|
[self setLayerContentsRedrawPolicy:NSViewLayerContentsRedrawOnSetNeedsDisplay];
|
|
|
|
[self setWantsBestResolutionOpenGLSurface:YES];
|
|
|
|
return self;
|
|
}
|
|
|
|
- (void) dealloc {
|
|
[self->layer release];
|
|
|
|
[super dealloc];
|
|
}
|
|
|
|
- (void)renewGState {
|
|
/* Don't update the screen until we redraw, this
|
|
* prevents flickering during scrolling, clipping,
|
|
* resizing, etc
|
|
*/
|
|
[[self window] disableScreenUpdatesUntilFlush];
|
|
|
|
[super renewGState];
|
|
}
|
|
|
|
- (BOOL) isOpaque {
|
|
return YES;
|
|
}
|
|
|
|
- (BOOL) isFlipped {
|
|
return NO;
|
|
}
|
|
|
|
@end
|
|
|
|
void
|
|
_invoke_on_main (GstGLWindowCB func, gpointer data)
|
|
{
|
|
if ([NSThread isMainThread]) {
|
|
func (data);
|
|
} else {
|
|
dispatch_async (dispatch_get_main_queue (), ^{
|
|
func (data);
|
|
});
|
|
}
|
|
}
|