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gstgl: Add a new window type for WinRT
This is needed for using GstGL with ANGLE as the GLES implementation in Universal Windows Platform apps that use the Windows Runtime (WinRT) instead of Win32, which is deprecated and not allowed in Windows Store apps. This has been tested with Servo on the Microsoft HoloLens 2, and seems to work quite well.
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| Original file line number | Diff line number | Diff line change |
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| /* | ||
| * GStreamer | ||
| * Copyright (C) 2019 Nirbheek Chauhan <nirbheek@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 | ||
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| #include <gst/gl/gstglcontext.h> | ||
| #include <gst/gl/egl/gstglcontext_egl.h> | ||
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| #include "gstglwindow_winrt_egl.h" | ||
| #include "../gstglwindow_private.h" | ||
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| #define GST_CAT_DEFAULT gst_gl_window_debug | ||
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| #define GST_GL_WINDOW_WINRT_EGL_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), \ | ||
| GST_TYPE_GL_WINDOW_WINRT_EGL, GstGLWindowWinRTEGLPrivate)) | ||
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| G_DEFINE_TYPE (GstGLWindowWinRTEGL, gst_gl_window_winrt_egl, | ||
| GST_TYPE_GL_WINDOW); | ||
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| static guintptr gst_gl_window_winrt_egl_get_display (GstGLWindow * window); | ||
| static guintptr gst_gl_window_winrt_egl_get_window_handle (GstGLWindow * | ||
| window); | ||
| static void gst_gl_window_winrt_egl_set_window_handle (GstGLWindow * window, | ||
| guintptr handle); | ||
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| static void | ||
| gst_gl_window_winrt_egl_class_init (GstGLWindowWinRTEGLClass * klass) | ||
| { | ||
| GstGLWindowClass *window_class = (GstGLWindowClass *) klass; | ||
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| window_class->get_display = | ||
| GST_DEBUG_FUNCPTR (gst_gl_window_winrt_egl_get_display); | ||
| window_class->get_window_handle = | ||
| GST_DEBUG_FUNCPTR (gst_gl_window_winrt_egl_get_window_handle); | ||
| window_class->set_window_handle = | ||
| GST_DEBUG_FUNCPTR (gst_gl_window_winrt_egl_set_window_handle); | ||
| } | ||
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| static void | ||
| gst_gl_window_winrt_egl_init (GstGLWindowWinRTEGL * window_winrt) | ||
| { | ||
| } | ||
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| static void | ||
| gst_gl_window_winrt_egl_set_window_handle (GstGLWindow * window, | ||
| guintptr handle) | ||
| { | ||
| GstGLWindowWinRTEGL *window_egl = GST_GL_WINDOW_WINRT_EGL (window); | ||
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| GST_INFO_OBJECT (window, "Setting WinRT EGL window handle: %p", handle); | ||
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| window_egl->window = (EGLNativeWindowType) handle; | ||
| } | ||
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| static guintptr | ||
| gst_gl_window_winrt_egl_get_window_handle (GstGLWindow * window) | ||
| { | ||
| GstGLWindowWinRTEGL *window_egl = GST_GL_WINDOW_WINRT_EGL (window); | ||
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| GST_INFO_OBJECT (window, "Getting WinRT EGL window handle"); | ||
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| return (guintptr) window_egl->window; | ||
| } | ||
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| /* Must be called in the gl thread */ | ||
| GstGLWindowWinRTEGL * | ||
| gst_gl_window_winrt_egl_new (GstGLDisplay * display) | ||
| { | ||
| GstGLWindowWinRTEGL *window_egl; | ||
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| GST_INFO_OBJECT (display, "Trying to create WinRT EGL window"); | ||
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| if ((gst_gl_display_get_handle_type (display) & GST_GL_DISPLAY_TYPE_EGL) == 0) | ||
| /* we require an EGL display to create windows */ | ||
| return NULL; | ||
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| GST_INFO_OBJECT (display, "Creating WinRT EGL window"); | ||
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| window_egl = g_object_new (GST_TYPE_GL_WINDOW_WINRT_EGL, NULL); | ||
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| return window_egl; | ||
| } | ||
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| static guintptr | ||
| gst_gl_window_winrt_egl_get_display (GstGLWindow * window) | ||
| { | ||
| /* EGL_DEFAULT_DISPLAY */ | ||
| return 0; | ||
| } |
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