mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-12-04 23:46:43 +00:00
d9f553bff5
Doing so is an error and will cause a glib warning to be printed. https://bugzilla.gnome.org/show_bug.cgi?id=776722
788 lines
24 KiB
C
788 lines
24 KiB
C
/*
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* GStreamer
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* Copyright (C) 2013 Sebastian Dröge <slomo@circular-chaos.org>
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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 <gmodule.h>
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/* FIXME: Sharing contexts requires the EGLDisplay to be the same
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* may need to box it.
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*/
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#include "gstglcontext_egl.h"
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#include <gst/gl/egl/gstegl.h>
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#include "../utils/opengl_versions.h"
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#include "../utils/gles_versions.h"
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#if GST_GL_HAVE_WINDOW_X11
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#include "../x11/gstglwindow_x11.h"
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#include <gst/gl/x11/gstgldisplay_x11.h>
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#endif
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#if GST_GL_HAVE_WINDOW_WAYLAND
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#include "../wayland/gstglwindow_wayland_egl.h"
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#endif
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#if GST_GL_HAVE_WINDOW_WIN32
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#include "../win32/gstglwindow_win32.h"
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#endif
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#if GST_GL_HAVE_WINDOW_DISPMANX
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#include "../dispmanx/gstglwindow_dispmanx_egl.h"
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#endif
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#define GST_CAT_DEFAULT gst_gl_context_debug
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static gboolean gst_gl_context_egl_create_context (GstGLContext * context,
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GstGLAPI gl_api, GstGLContext * other_context, GError ** error);
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static void gst_gl_context_egl_destroy_context (GstGLContext * context);
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static gboolean gst_gl_context_egl_choose_format (GstGLContext * context,
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GError ** error);
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static gboolean gst_gl_context_egl_activate (GstGLContext * context,
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gboolean activate);
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static void gst_gl_context_egl_swap_buffers (GstGLContext * context);
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static guintptr gst_gl_context_egl_get_gl_context (GstGLContext * context);
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static GstGLAPI gst_gl_context_egl_get_gl_api (GstGLContext * context);
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static GstGLPlatform gst_gl_context_egl_get_gl_platform (GstGLContext *
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context);
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static gboolean gst_gl_context_egl_check_feature (GstGLContext * context,
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const gchar * feature);
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static void gst_gl_context_egl_get_gl_platform_version (GstGLContext * context,
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gint * major, gint * minor);
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G_DEFINE_TYPE (GstGLContextEGL, gst_gl_context_egl, GST_TYPE_GL_CONTEXT);
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static void
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gst_gl_context_egl_class_init (GstGLContextEGLClass * klass)
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{
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GstGLContextClass *context_class = (GstGLContextClass *) klass;
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context_class->get_gl_context =
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GST_DEBUG_FUNCPTR (gst_gl_context_egl_get_gl_context);
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context_class->activate = GST_DEBUG_FUNCPTR (gst_gl_context_egl_activate);
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context_class->create_context =
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GST_DEBUG_FUNCPTR (gst_gl_context_egl_create_context);
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context_class->destroy_context =
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GST_DEBUG_FUNCPTR (gst_gl_context_egl_destroy_context);
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context_class->choose_format =
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GST_DEBUG_FUNCPTR (gst_gl_context_egl_choose_format);
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context_class->swap_buffers =
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GST_DEBUG_FUNCPTR (gst_gl_context_egl_swap_buffers);
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context_class->get_gl_api = GST_DEBUG_FUNCPTR (gst_gl_context_egl_get_gl_api);
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context_class->get_gl_platform =
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GST_DEBUG_FUNCPTR (gst_gl_context_egl_get_gl_platform);
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context_class->get_proc_address =
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GST_DEBUG_FUNCPTR (gst_gl_context_egl_get_proc_address);
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context_class->check_feature =
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GST_DEBUG_FUNCPTR (gst_gl_context_egl_check_feature);
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context_class->get_current_context =
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GST_DEBUG_FUNCPTR (gst_gl_context_egl_get_current_context);
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context_class->get_gl_platform_version =
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GST_DEBUG_FUNCPTR (gst_gl_context_egl_get_gl_platform_version);
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}
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static void
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gst_gl_context_egl_init (GstGLContextEGL * context)
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{
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}
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/* Must be called in the gl thread */
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GstGLContextEGL *
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gst_gl_context_egl_new (GstGLDisplay * display)
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{
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/* XXX: display type could theoretically be anything, as long as
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* eglGetDisplay supports it. */
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return g_object_new (GST_TYPE_GL_CONTEXT_EGL, NULL);
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}
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static gboolean
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gst_gl_context_egl_choose_format (GstGLContext * context, GError ** error)
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{
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#if GST_GL_HAVE_WINDOW_X11
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if (GST_IS_GL_WINDOW_X11 (context->window)) {
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GstGLWindow *window = gst_gl_context_get_window (context);
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GstGLWindowX11 *window_x11 = GST_GL_WINDOW_X11 (window);
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gint ret;
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window_x11->visual_info = g_new0 (XVisualInfo, 1);
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ret = XMatchVisualInfo (window_x11->device, window_x11->screen_num,
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window_x11->depth, TrueColor, window_x11->visual_info);
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gst_object_unref (window);
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if (ret == 0) {
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g_set_error (error, GST_GL_CONTEXT_ERROR,
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GST_GL_CONTEXT_ERROR_WRONG_CONFIG, "Failed to match XVisualInfo");
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return FALSE;
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}
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}
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#endif
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return TRUE;
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}
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static gboolean
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gst_gl_context_egl_choose_config (GstGLContextEGL * egl, GstGLAPI gl_api,
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gint major, GError ** error)
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{
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gboolean create_context;
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EGLint numConfigs;
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gint i = 0;
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EGLint config_attrib[20];
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create_context =
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gst_gl_check_extension ("EGL_KHR_create_context", egl->egl_exts);
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/* silence unused warnings */
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(void) create_context;
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config_attrib[i++] = EGL_SURFACE_TYPE;
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config_attrib[i++] = EGL_WINDOW_BIT;
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config_attrib[i++] = EGL_RENDERABLE_TYPE;
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if (gl_api & GST_GL_API_GLES2) {
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if (major == 3) {
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#if defined(EGL_KHR_create_context)
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if (create_context) {
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config_attrib[i++] = EGL_OPENGL_ES3_BIT_KHR;
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} else
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#endif
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{
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return FALSE;
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}
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} else {
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config_attrib[i++] = EGL_OPENGL_ES2_BIT;
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}
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} else
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config_attrib[i++] = EGL_OPENGL_BIT;
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#if defined(USE_EGL_RPI) && GST_GL_HAVE_WINDOW_WAYLAND
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/* The configurations with a=0 seems to be buggy whereas
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* it works when using dispmanx directly */
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config_attrib[i++] = EGL_ALPHA_SIZE;
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config_attrib[i++] = 1;
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#endif
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config_attrib[i++] = EGL_DEPTH_SIZE;
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config_attrib[i++] = 16;
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config_attrib[i++] = EGL_RED_SIZE;
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config_attrib[i++] = 1;
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config_attrib[i++] = EGL_GREEN_SIZE;
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config_attrib[i++] = 1;
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config_attrib[i++] = EGL_BLUE_SIZE;
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config_attrib[i++] = 1;
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config_attrib[i++] = EGL_NONE;
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if (eglChooseConfig (egl->egl_display, config_attrib,
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&egl->egl_config, 1, &numConfigs)) {
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GST_INFO ("config set: %" G_GUINTPTR_FORMAT ", %u",
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(guintptr) egl->egl_config, (unsigned int) numConfigs);
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} else {
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g_set_error (error, GST_GL_CONTEXT_ERROR, GST_GL_CONTEXT_ERROR_WRONG_CONFIG,
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"Failed to set window configuration: %s",
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gst_egl_get_error_string (eglGetError ()));
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goto failure;
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}
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return TRUE;
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failure:
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return FALSE;
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}
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static EGLContext
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_create_context_with_flags (GstGLContextEGL * egl, EGLContext share_context,
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GstGLAPI gl_api, gint major, gint minor, gint contextFlags,
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gint profileMask)
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{
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gboolean create_context;
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#define N_ATTRIBS 20
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gint attribs[N_ATTRIBS];
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gint n = 0;
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/* fail creation of apis/versions/flags that require EGL_KHR_create_context
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* if the extension doesn't exist, namely:0
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*
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* - profile mask
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* - context flags
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* - GL3 > 3.1
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* - GLES2 && minor > 0
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*/
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create_context =
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gst_gl_check_extension ("EGL_KHR_create_context", egl->egl_exts);
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(void) create_context;
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if (!create_context && (profileMask || contextFlags
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|| ((gl_api & GST_GL_API_OPENGL3)
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&& GST_GL_CHECK_GL_VERSION (major, minor, 3, 2))
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|| ((gl_api & GST_GL_API_GLES2) && minor > 0))) {
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return 0;
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}
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GST_DEBUG_OBJECT (egl, "attempting to create OpenGL%s context version %d.%d "
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"flags %x profile %x", gl_api & GST_GL_API_GLES2 ? " ES" : "", major,
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minor, contextFlags, profileMask);
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#if defined(EGL_KHR_create_context)
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if (create_context) {
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if (major) {
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attribs[n++] = EGL_CONTEXT_MAJOR_VERSION_KHR;
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attribs[n++] = major;
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}
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if (minor) {
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attribs[n++] = EGL_CONTEXT_MINOR_VERSION_KHR;
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attribs[n++] = minor;
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}
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if (contextFlags) {
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attribs[n++] = EGL_CONTEXT_FLAGS_KHR;
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attribs[n++] = contextFlags;
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}
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if (profileMask) {
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attribs[n++] = EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR;
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attribs[n++] = profileMask;
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}
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} else
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#endif
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{
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attribs[n++] = EGL_CONTEXT_CLIENT_VERSION;
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attribs[n++] = major;
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}
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attribs[n++] = EGL_NONE;
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g_assert (n < N_ATTRIBS);
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#undef N_ATTRIBS
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return eglCreateContext (egl->egl_display, egl->egl_config, share_context,
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attribs);
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}
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static gboolean
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gst_gl_context_egl_create_context (GstGLContext * context,
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GstGLAPI gl_api, GstGLContext * other_context, GError ** error)
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{
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GstGLContextEGL *egl;
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GstGLWindow *window = NULL;
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EGLNativeWindowType window_handle = (EGLNativeWindowType) 0;
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EGLint egl_major;
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EGLint egl_minor;
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gboolean need_surface = TRUE;
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guintptr external_gl_context = 0;
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guintptr egl_display;
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egl = GST_GL_CONTEXT_EGL (context);
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window = gst_gl_context_get_window (context);
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GST_DEBUG_OBJECT (context, "Creating EGL context");
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if (other_context) {
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if (gst_gl_context_get_gl_platform (other_context) != GST_GL_PLATFORM_EGL) {
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g_set_error (error, GST_GL_CONTEXT_ERROR,
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GST_GL_CONTEXT_ERROR_WRONG_CONFIG,
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"Cannot share context with non-EGL context");
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goto failure;
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}
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external_gl_context = gst_gl_context_get_gl_context (other_context);
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}
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if ((gl_api & (GST_GL_API_OPENGL | GST_GL_API_OPENGL3 | GST_GL_API_GLES2)) ==
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GST_GL_API_NONE) {
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g_set_error (error, GST_GL_CONTEXT_ERROR, GST_GL_CONTEXT_ERROR_WRONG_API,
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"EGL supports opengl or gles2");
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goto failure;
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}
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if (!egl->display_egl) {
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GstGLDisplay *display = gst_gl_context_get_display (context);
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egl->display_egl = gst_gl_display_egl_from_gl_display (display);
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if (!egl->display_egl) {
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g_set_error (error, GST_GL_CONTEXT_ERROR,
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GST_GL_CONTEXT_ERROR_RESOURCE_UNAVAILABLE,
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"Failed to create EGLDisplay from native display");
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goto failure;
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}
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gst_object_unref (display);
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}
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egl_display = gst_gl_display_get_handle (GST_GL_DISPLAY (egl->display_egl));
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egl->egl_display = (EGLDisplay) egl_display;
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if (eglInitialize (egl->egl_display, &egl_major, &egl_minor)) {
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GST_INFO ("egl initialized, version: %d.%d", egl_major, egl_minor);
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} else {
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g_set_error (error, GST_GL_CONTEXT_ERROR,
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GST_GL_CONTEXT_ERROR_RESOURCE_UNAVAILABLE,
|
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"Failed to initialize egl: %s",
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gst_egl_get_error_string (eglGetError ()));
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goto failure;
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}
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egl->egl_exts = eglQueryString (egl->egl_display, EGL_EXTENSIONS);
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if (gl_api & (GST_GL_API_OPENGL | GST_GL_API_OPENGL3)) {
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GstGLAPI chosen_gl_api = 0;
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gint i;
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|
|
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/* egl + opengl only available with EGL 1.4+ */
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if (egl_major == 1 && egl_minor <= 3) {
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if ((gl_api & ~GST_GL_API_OPENGL) == GST_GL_API_NONE) {
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g_set_error (error, GST_GL_CONTEXT_ERROR, GST_GL_CONTEXT_ERROR_OLD_LIBS,
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"EGL version (%i.%i) too old for OpenGL support, (needed at least 1.4)",
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egl_major, egl_minor);
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goto failure;
|
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} else {
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GST_WARNING
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("EGL version (%i.%i) too old for OpenGL support, (needed at least 1.4)",
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egl_major, egl_minor);
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if (gl_api & GST_GL_API_GLES2) {
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goto try_gles2;
|
|
} else {
|
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g_set_error (error, GST_GL_CONTEXT_ERROR,
|
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GST_GL_CONTEXT_ERROR_WRONG_CONFIG,
|
|
"Failed to choose a suitable OpenGL API");
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goto failure;
|
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}
|
|
}
|
|
}
|
|
|
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if (!eglBindAPI (EGL_OPENGL_API)) {
|
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g_set_error (error, GST_GL_CONTEXT_ERROR, GST_GL_CONTEXT_ERROR_FAILED,
|
|
"Failed to bind OpenGL API: %s",
|
|
gst_egl_get_error_string (eglGetError ()));
|
|
goto failure;
|
|
}
|
|
|
|
GST_INFO ("Bound OpenGL");
|
|
|
|
/* api, version only matters for gles */
|
|
if (!gst_gl_context_egl_choose_config (egl, GST_GL_API_OPENGL, 0, error)) {
|
|
g_assert (error == NULL || *error != NULL);
|
|
goto failure;
|
|
}
|
|
|
|
for (i = 0; i < G_N_ELEMENTS (opengl_versions); i++) {
|
|
gint profileMask = 0;
|
|
gint contextFlags = 0;
|
|
|
|
if (GST_GL_CHECK_GL_VERSION (opengl_versions[i].major,
|
|
opengl_versions[i].minor, 3, 2)) {
|
|
/* skip gl3 contexts if requested */
|
|
if ((gl_api & GST_GL_API_OPENGL3) == 0)
|
|
continue;
|
|
|
|
chosen_gl_api = GST_GL_API_OPENGL3;
|
|
#if defined(EGL_KHR_create_context)
|
|
profileMask |= EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR;
|
|
contextFlags |= EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR;
|
|
#endif
|
|
} else if (opengl_versions[i].major == 3 && opengl_versions[i].minor == 1) {
|
|
/* skip 3.1, the implementation is free to give us either a core or a
|
|
* compatibility context (we have no say) */
|
|
continue;
|
|
} else {
|
|
/* skip legacy contexts if requested */
|
|
if ((gl_api & GST_GL_API_OPENGL) == 0)
|
|
continue;
|
|
|
|
chosen_gl_api = GST_GL_API_OPENGL;
|
|
}
|
|
|
|
egl->egl_context =
|
|
_create_context_with_flags (egl, (EGLContext) external_gl_context,
|
|
chosen_gl_api, opengl_versions[i].major,
|
|
opengl_versions[i].minor, contextFlags, profileMask);
|
|
|
|
if (egl->egl_context)
|
|
break;
|
|
|
|
#if defined(EGL_KHR_create_context)
|
|
profileMask &= ~EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR;
|
|
|
|
egl->egl_context =
|
|
_create_context_with_flags (egl, (EGLContext) external_gl_context,
|
|
chosen_gl_api, opengl_versions[i].major,
|
|
opengl_versions[i].minor, contextFlags, profileMask);
|
|
|
|
if (egl->egl_context)
|
|
break;
|
|
#endif
|
|
}
|
|
|
|
egl->gl_api = chosen_gl_api;
|
|
} else if (gl_api & GST_GL_API_GLES2) {
|
|
gint i;
|
|
|
|
try_gles2:
|
|
if (!eglBindAPI (EGL_OPENGL_ES_API)) {
|
|
g_set_error (error, GST_GL_CONTEXT_ERROR, GST_GL_CONTEXT_ERROR_FAILED,
|
|
"Failed to bind OpenGL|ES API: %s",
|
|
gst_egl_get_error_string (eglGetError ()));
|
|
goto failure;
|
|
}
|
|
|
|
GST_INFO ("Bound OpenGL|ES");
|
|
|
|
for (i = 0; i < G_N_ELEMENTS (gles2_versions); i++) {
|
|
gint profileMask = 0;
|
|
gint contextFlags = 0;
|
|
guint maj = gles2_versions[i].major;
|
|
guint min = gles2_versions[i].minor;
|
|
|
|
if (!gst_gl_context_egl_choose_config (egl, GST_GL_API_GLES2, maj, error)) {
|
|
GST_DEBUG_OBJECT (context, "Failed to choose a GLES%d config: %s",
|
|
maj, error && *error ? (*error)->message : "Unknown");
|
|
g_clear_error (error);
|
|
continue;
|
|
}
|
|
#if defined(EGL_KHR_create_context)
|
|
/* try a debug context */
|
|
contextFlags |= EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR;
|
|
|
|
egl->egl_context =
|
|
_create_context_with_flags (egl, (EGLContext) external_gl_context,
|
|
GST_GL_API_GLES2, maj, min, contextFlags, profileMask);
|
|
|
|
if (egl->egl_context)
|
|
break;
|
|
|
|
/* try without a debug context */
|
|
contextFlags &= ~EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR;
|
|
#endif
|
|
|
|
egl->egl_context =
|
|
_create_context_with_flags (egl, (EGLContext) external_gl_context,
|
|
GST_GL_API_GLES2, maj, min, contextFlags, profileMask);
|
|
|
|
if (egl->egl_context)
|
|
break;
|
|
}
|
|
egl->gl_api = GST_GL_API_GLES2;
|
|
}
|
|
|
|
if (egl->egl_context != EGL_NO_CONTEXT) {
|
|
GST_INFO ("gl context created: %" G_GUINTPTR_FORMAT,
|
|
(guintptr) egl->egl_context);
|
|
} else {
|
|
g_set_error (error, GST_GL_CONTEXT_ERROR,
|
|
GST_GL_CONTEXT_ERROR_CREATE_CONTEXT,
|
|
"Failed to create a OpenGL context: %s",
|
|
gst_egl_get_error_string (eglGetError ()));
|
|
goto failure;
|
|
}
|
|
/* FIXME do we want a window vfunc ? */
|
|
#if GST_GL_HAVE_WINDOW_X11
|
|
if (GST_IS_GL_WINDOW_X11 (context->window)) {
|
|
gst_gl_window_x11_create_window ((GstGLWindowX11 *) context->window);
|
|
}
|
|
#endif
|
|
|
|
if (other_context == NULL) {
|
|
/* FIXME: fails to show two outputs at all. We need a property/option for
|
|
* glimagesink to say its a visible context */
|
|
#if GST_GL_HAVE_WINDOW_WAYLAND
|
|
if (GST_IS_GL_WINDOW_WAYLAND_EGL (context->window)) {
|
|
gst_gl_window_wayland_egl_create_window ((GstGLWindowWaylandEGL *)
|
|
context->window);
|
|
}
|
|
#endif
|
|
#if GST_GL_HAVE_WINDOW_WIN32
|
|
if (GST_IS_GL_WINDOW_WIN32 (context->window)) {
|
|
gst_gl_window_win32_create_window ((GstGLWindowWin32 *) context->window);
|
|
}
|
|
#endif
|
|
#if GST_GL_HAVE_WINDOW_DISPMANX
|
|
if (GST_IS_GL_WINDOW_DISPMANX_EGL (context->window)) {
|
|
gst_gl_window_dispmanx_egl_create_window ((GstGLWindowDispmanxEGL *)
|
|
context->window);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
if (window)
|
|
window_handle =
|
|
(EGLNativeWindowType) gst_gl_window_get_window_handle (window);
|
|
|
|
if (window_handle) {
|
|
GST_DEBUG ("Creating EGLSurface from window_handle %p",
|
|
(void *) window_handle);
|
|
egl->egl_surface =
|
|
eglCreateWindowSurface (egl->egl_display, egl->egl_config,
|
|
window_handle, NULL);
|
|
/* Store window handle for later comparision */
|
|
egl->window_handle = window_handle;
|
|
} else if (!gst_gl_check_extension ("EGL_KHR_surfaceless_context",
|
|
egl->egl_exts)) {
|
|
EGLint surface_attrib[7];
|
|
gint j = 0;
|
|
|
|
GST_DEBUG ("Surfaceless context, creating PBufferSurface");
|
|
/* FIXME: Width/height doesn't seem to matter but we can't leave them
|
|
* at 0, otherwise X11 complains about BadValue */
|
|
surface_attrib[j++] = EGL_WIDTH;
|
|
surface_attrib[j++] = 1;
|
|
surface_attrib[j++] = EGL_HEIGHT;
|
|
surface_attrib[j++] = 1;
|
|
surface_attrib[j++] = EGL_LARGEST_PBUFFER;
|
|
surface_attrib[j++] = EGL_TRUE;
|
|
surface_attrib[j++] = EGL_NONE;
|
|
|
|
egl->egl_surface =
|
|
eglCreatePbufferSurface (egl->egl_display, egl->egl_config,
|
|
surface_attrib);
|
|
} else {
|
|
GST_DEBUG ("No surface/handle !");
|
|
egl->egl_surface = EGL_NO_SURFACE;
|
|
need_surface = FALSE;
|
|
}
|
|
|
|
if (need_surface) {
|
|
if (egl->egl_surface != EGL_NO_SURFACE) {
|
|
GST_INFO ("surface created");
|
|
} else {
|
|
g_set_error (error, GST_GL_CONTEXT_ERROR, GST_GL_CONTEXT_ERROR_FAILED,
|
|
"Failed to create window surface: %s",
|
|
gst_egl_get_error_string (eglGetError ()));
|
|
goto failure;
|
|
}
|
|
}
|
|
egl->egl_major = egl_major;
|
|
egl->egl_minor = egl_minor;
|
|
|
|
if (window)
|
|
gst_object_unref (window);
|
|
|
|
return TRUE;
|
|
|
|
failure:
|
|
if (window)
|
|
gst_object_unref (window);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
gst_gl_context_egl_destroy_context (GstGLContext * context)
|
|
{
|
|
GstGLContextEGL *egl;
|
|
|
|
egl = GST_GL_CONTEXT_EGL (context);
|
|
|
|
gst_gl_context_egl_activate (context, FALSE);
|
|
|
|
if (egl->egl_surface) {
|
|
eglDestroySurface (egl->egl_display, egl->egl_surface);
|
|
egl->egl_surface = EGL_NO_SURFACE;
|
|
}
|
|
|
|
if (egl->egl_context) {
|
|
eglDestroyContext (egl->egl_display, egl->egl_context);
|
|
egl->egl_context = NULL;
|
|
}
|
|
egl->window_handle = 0;
|
|
|
|
eglReleaseThread ();
|
|
|
|
if (egl->display_egl) {
|
|
gst_object_unref (egl->display_egl);
|
|
egl->display_egl = NULL;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
gst_gl_context_egl_activate (GstGLContext * context, gboolean activate)
|
|
{
|
|
GstGLContextEGL *egl;
|
|
gboolean result;
|
|
|
|
egl = GST_GL_CONTEXT_EGL (context);
|
|
|
|
if (activate) {
|
|
GstGLWindow *window = gst_gl_context_get_window (context);
|
|
EGLNativeWindowType handle = 0;
|
|
/* Check if the backing handle changed */
|
|
if (window) {
|
|
handle = (EGLNativeWindowType) gst_gl_window_get_window_handle (window);
|
|
gst_object_unref (window);
|
|
}
|
|
if (handle && handle != egl->window_handle) {
|
|
GST_DEBUG_OBJECT (context,
|
|
"Handle changed (have:%p, now:%p), switching surface",
|
|
(void *) egl->window_handle, (void *) handle);
|
|
if (egl->egl_surface) {
|
|
result = eglDestroySurface (egl->egl_display, egl->egl_surface);
|
|
egl->egl_surface = EGL_NO_SURFACE;
|
|
if (!result) {
|
|
GST_ERROR_OBJECT (context, "Failed to destroy old window surface: %s",
|
|
gst_egl_get_error_string (eglGetError ()));
|
|
goto done;
|
|
}
|
|
}
|
|
egl->egl_surface =
|
|
eglCreateWindowSurface (egl->egl_display, egl->egl_config, handle,
|
|
NULL);
|
|
egl->window_handle = handle;
|
|
|
|
if (egl->egl_surface == EGL_NO_SURFACE) {
|
|
GST_ERROR_OBJECT (context, "Failed to create window surface: %s",
|
|
gst_egl_get_error_string (eglGetError ()));
|
|
result = FALSE;
|
|
goto done;
|
|
}
|
|
}
|
|
result = eglMakeCurrent (egl->egl_display, egl->egl_surface,
|
|
egl->egl_surface, egl->egl_context);
|
|
} else {
|
|
result = eglMakeCurrent (egl->egl_display, EGL_NO_SURFACE,
|
|
EGL_NO_SURFACE, EGL_NO_CONTEXT);
|
|
}
|
|
|
|
if (!result) {
|
|
GST_ERROR_OBJECT (context,
|
|
"Failed to bind context to the current rendering thread: %s",
|
|
gst_egl_get_error_string (eglGetError ()));
|
|
}
|
|
|
|
done:
|
|
return result;
|
|
}
|
|
|
|
static guintptr
|
|
gst_gl_context_egl_get_gl_context (GstGLContext * context)
|
|
{
|
|
return (guintptr) GST_GL_CONTEXT_EGL (context)->egl_context;
|
|
}
|
|
|
|
static void
|
|
gst_gl_context_egl_swap_buffers (GstGLContext * context)
|
|
{
|
|
GstGLContextEGL *egl;
|
|
|
|
egl = GST_GL_CONTEXT_EGL (context);
|
|
|
|
eglSwapBuffers (egl->egl_display, egl->egl_surface);
|
|
}
|
|
|
|
static GstGLAPI
|
|
gst_gl_context_egl_get_gl_api (GstGLContext * context)
|
|
{
|
|
return GST_GL_CONTEXT_EGL (context)->gl_api;
|
|
}
|
|
|
|
static GstGLPlatform
|
|
gst_gl_context_egl_get_gl_platform (GstGLContext * context)
|
|
{
|
|
return GST_GL_PLATFORM_EGL;
|
|
}
|
|
|
|
static GModule *module_egl;
|
|
|
|
static gpointer
|
|
load_egl_module (gpointer user_data)
|
|
{
|
|
#ifdef GST_GL_LIBEGL_MODULE_NAME
|
|
module_egl = g_module_open (GST_GL_LIBEGL_MODULE_NAME, G_MODULE_BIND_LAZY);
|
|
#else
|
|
/* On Linux the .so is only in -dev packages, try with a real soname
|
|
* Proper compilers will optimize away the strcmp */
|
|
if (g_strcmp0 (G_MODULE_SUFFIX, "so") == 0)
|
|
module_egl = g_module_open ("libEGL.so.1", G_MODULE_BIND_LAZY);
|
|
|
|
/* This automatically handles the suffix and even .la files */
|
|
if (!module_egl)
|
|
module_egl = g_module_open ("libEGL", G_MODULE_BIND_LAZY);
|
|
#endif
|
|
|
|
return NULL;
|
|
}
|
|
|
|
gpointer
|
|
gst_gl_context_egl_get_proc_address (GstGLAPI gl_api, const gchar * name)
|
|
{
|
|
gpointer result = NULL;
|
|
static GOnce g_once = G_ONCE_INIT;
|
|
|
|
#ifdef __APPLE__
|
|
#if GST_GL_HAVE_OPENGL && !defined(GST_GL_LIBGL_MODULE_NAME)
|
|
if (!result && (gl_api & (GST_GL_API_OPENGL | GST_GL_API_OPENGL3))) {
|
|
static GModule *module_opengl = NULL;
|
|
if (g_once_init_enter (&module_opengl)) {
|
|
GModule *setup_module_opengl =
|
|
g_module_open ("libGL.dylib", G_MODULE_BIND_LAZY);
|
|
g_once_init_leave (&module_opengl, setup_module_opengl);
|
|
}
|
|
if (module_opengl)
|
|
g_module_symbol (module_opengl, name, &result);
|
|
}
|
|
#endif
|
|
#if GST_GL_HAVE_GLES2 && !defined(GST_GL_LIBGLESV2_MODULE_NAME)
|
|
if (!result && (gl_api & (GST_GL_API_GLES2))) {
|
|
static GModule *module_gles2 = NULL;
|
|
if (g_once_init_enter (&module_gles2)) {
|
|
GModule *setup_module_gles2 =
|
|
g_module_open ("libGLESv2.dylib", G_MODULE_BIND_LAZY);
|
|
g_once_init_leave (&module_gles2, setup_module_gles2);
|
|
}
|
|
if (module_gles2)
|
|
g_module_symbol (module_gles2, name, &result);
|
|
}
|
|
#endif
|
|
#endif // __APPLE__
|
|
|
|
if (!result)
|
|
result = gst_gl_context_default_get_proc_address (gl_api, name);
|
|
|
|
g_once (&g_once, load_egl_module, NULL);
|
|
|
|
if (!result && module_egl) {
|
|
g_module_symbol (module_egl, name, &result);
|
|
}
|
|
|
|
/* FIXME: On Android this returns wrong addresses for non-EGL functions */
|
|
#if GST_GL_HAVE_WINDOW_ANDROID
|
|
if (!result && g_str_has_prefix (name, "egl")) {
|
|
#else
|
|
if (!result) {
|
|
result = eglGetProcAddress (name);
|
|
#endif
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
static gboolean
|
|
gst_gl_context_egl_check_feature (GstGLContext * context, const gchar * feature)
|
|
{
|
|
GstGLContextEGL *context_egl = GST_GL_CONTEXT_EGL (context);
|
|
|
|
return gst_gl_check_extension (feature, context_egl->egl_exts);
|
|
}
|
|
|
|
guintptr
|
|
gst_gl_context_egl_get_current_context (void)
|
|
{
|
|
return (guintptr) eglGetCurrentContext ();
|
|
}
|
|
|
|
static void
|
|
gst_gl_context_egl_get_gl_platform_version (GstGLContext * context,
|
|
gint * major, gint * minor)
|
|
{
|
|
GstGLContextEGL *context_egl = GST_GL_CONTEXT_EGL (context);
|
|
|
|
*major = context_egl->egl_major;
|
|
*minor = context_egl->egl_minor;
|
|
}
|