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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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At the moment it just sits in between GstGLDisplay and GstGLWindow performing some of the stuff that GstGLWindow used to do.
281 lines
8.6 KiB
C
281 lines
8.6 KiB
C
/*
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* GStreamer
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* Copyright (C) 2009 Julien Isorce <julien.isorce@gmail.com>
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* Copyright (C) 2012 Matthew Waters <ystreet00@gmail.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 <gst/gst.h>
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#include "../gstgl_fwd.h"
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#include <gst/gl/gstglcontext.h>
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#include "gstglwindow_win32_egl.h"
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static guintptr gst_gl_window_win32_wgl_get_gl_context (GstGLWindowWin32 *
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window_win32);
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static void gst_gl_window_win32_wgl_swap_buffers (GstGLWindowWin32 *
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window_win32);
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static gboolean gst_gl_window_win32_wgl_choose_format (GstGLWindowWin32 *
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window_win32);
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static gboolean gst_gl_window_win32_wgl_activate (GstGLWindowWin32 *
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window_win32, gboolean activate);
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static gboolean gst_gl_window_win32_wgl_create_context (GstGLWindowWin32 *
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window_win32, GstGLAPI gl_api, guintptr external_gl_context,
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GError ** error);
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static void gst_gl_window_win32_wgl_destroy_context (GstGLWindowWin32 *
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window_win32);
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GstGLAPI gst_gl_window_win32_egl_get_gl_api (GstGLWindow * window);
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const gchar *WinEGLErrorString ();
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#define GST_CAT_DEFAULT gst_gl_window_debug
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#define gst_gl_window_win32_wgl_parent_class parent_class
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G_DEFINE_TYPE (GstGLWindowWin32EGL, gst_gl_window_win32_egl,
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GST_GL_TYPE_WINDOW);
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static void
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gst_gl_window_win32_egl_class_init (GstGLWindowWin32EGLClass * klass)
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{
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GstGLWindowClass *window_class = (GstGLWindowClass *) klass;
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GstGLWindowWin32Class *window_win32_class = (GstGLWindowWin32 *) klass;
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window_win32_class->get_gl_context =
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GST_DEBUG_FUNCPTR (gst_gl_window_win32_egl_get_gl_context);
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window_win32_class->choose_format =
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GST_DEBUG_FUNCPTR (gst_gl_window_win32_egl_choose_format);
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window_win32_class->activate =
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GST_DEBUG_FUNCPTR (gst_gl_window_win32_egl_activate);
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window_win32_class->create_context =
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GST_DEBUG_FUNCPTR (gst_gl_window_win32_egl_create_context);
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window_win32_class->destroy_context =
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GST_DEBUG_FUNCPTR (gst_gl_window_win32_egl_destroy_context);
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window_win32_class->swap_buffers =
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GST_DEBUG_FUNCPTR (gst_gl_window_win32_egl_swap_buffers);
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window_class->get_gl_api =
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GST_DEBUG_FUNCPTR (gst_gl_window_win32_egl_get_gl_api);
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}
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static void
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gst_gl_window_win32_egl_init (GstGLWindow * window)
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{
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}
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/* Must be called in the gl thread */
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GstGLWindowWin32EGL *
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gst_gl_window_win32_egl_new (void)
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{
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GstGLWindowWin32EGL *window =
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g_object_new (GST_GL_TYPE_WINDOW_WIN32_EGL, NULL);
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return window;
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}
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guintptr
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gst_gl_window_win32_egl_get_gl_context (GstGLWindowWin32 * window_win32)
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{
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return (guintptr) GST_GL_WINDOW_WIN32_EGL (window_win32)->wgl_context;
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}
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static gboolean
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gst_gl_window_win32_egl_activate (GstGLWindowWin32 * window_win32,
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gboolean activate)
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{
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GstGLWindowWin32EGL window;
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gboolean result;
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window = GST_GL_WINDOW_WIN32_ELG (window_win32);
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if (activate) {
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result = eglMakeCurrent (window->display, window->surface, window->surface,
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window->gl_context);
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} else {
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result = eglMakeCurrent (window->display, EGL_NO_SURFACE, EGL_NO_SURFACE,
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EGL_NO_CONTEXT)
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}
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return result;
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}
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static gboolean
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gst_gl_window_win32_egl_create_context (GstGLWindowWin32 * window_win32,
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GstGLAPI gl_api, guintptr external_gl_context, GError ** error)
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{
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GstGLWindowWin32EGL *window_egl;
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EGLint majorVersion;
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EGLint minorVersion;
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EGLint numConfigs;
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EGLConfig config;
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EGLint contextAttribs[] =
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{ EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE, EGL_NONE };
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EGLint attribList[] = {
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EGL_RED_SIZE, 5,
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EGL_GREEN_SIZE, 6,
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EGL_BLUE_SIZE, 5,
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EGL_ALPHA_SIZE, 8,
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EGL_DEPTH_SIZE, 8,
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EGL_STENCIL_SIZE, 8,
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EGL_SAMPLE_BUFFERS, EGL_DONT_CARE, //1
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EGL_NONE
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};
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window_egl = GST_GL_WINDOW_WIN32_EGL (window_win32);
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window_egl->display = eglGetDisplay (window_win32->device);
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if (priv->display != EGL_NO_DISPLAY)
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GST_DEBUG ("display retrieved: %d", window_egl->display);
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else {
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g_set_error (error, GST_GL_WINDOW_ERROR,
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GST_GL_WINDOW_ERROR_RESOURCE_UNAVAILABLE,
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"failed to retrieve display: %s", WinEGLErrorString ());
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goto failure;
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}
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if (eglInitialize (priv->display, &majorVersion, &minorVersion))
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GST_DEBUG ("egl initialized: %d.%d", majorVersion, minorVersion);
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else {
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g_set_error (error, GST_GL_WINDOW_ERROR,
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GST_GL_WINDOW_ERROR_RESOURCE_UNAVAILABLE,
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"failed to initialize egl: %s", WinEGLErrorString ());
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goto failure;
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}
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if (eglGetConfigs (window_egl->display, NULL, 0, &numConfigs))
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GST_DEBUG ("configs retrieved: %d", numConfigs);
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else {
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g_set_error (error, GST_GL_WINDOW_ERROR, GST_GL_WINDOW_ERROR_WRONG_CONFIG,
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"failed to retrieve configs %s", WinEGLErrorString ());
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goto failure;
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}
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if (eglChooseConfig (priv->display, attribList, &config, 1, &numConfigs))
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GST_DEBUG ("config set: %d, %d", config, numConfigs);
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else {
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g_set_error (error, GST_GL_WINDOW_ERROR, GST_GL_WINDOW_ERROR_WRONG_CONFIG,
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"failed to set config %s", WinEGLErrorString ());
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goto failure;
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}
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window_egl->surface =
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eglCreateWindowSurface (window_egl->display, config,
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(EGLNativeWindowType) WindowFromDC (window_win32->device), NULL);
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if (priv->surface != EGL_NO_SURFACE)
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GST_DEBUG ("surface created: %d", window_egl->surface);
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else {
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g_set_error (error, GST_GL_WINDOW_ERROR, GST_GL_WINDOW_ERROR_CREATE_CONTEXT,
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"failed to create surface %s", WinEGLErrorString ());
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goto failure;
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}
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window_egl->egl_context =
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eglCreateContext (window_egl->display, config, external_gl_context,
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contextAttribs);
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if (window_egl->egl_context != EGL_NO_CONTEXT)
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GST_DEBUG ("gl context created: %lud, external: %lud",
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(guintptr) window_egl->egl_context, (guintptr) external_gl_context);
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else {
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g_set_error (error, GST_GL_WINDOW_ERROR, GST_GL_WINDOW_ERROR_CREATE_CONTEXT,
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"failed to create glcontext with external: %lud, %s",
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(guintptr) external_gl_context, WinEGLErrorString ());
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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 void
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gst_gl_window_win32_egl_destroy_context (GstGLWindowWin32 * window_win32)
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{
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GstGLWindowWin32EGL *window_egl;
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window_egl = GST_GL_WINDOW_WIN32_EGL (window_win32);
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if (window_egl->egl_context) {
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if (!eglDestroyContext (window_egl->display, window_egl->egl_context))
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GST_DEBUG ("failed to destroy context %d, %s\n", window_egl->egl_context,
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WinEGLErrorString ());
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window_egl->egl_context = NULL;
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}
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if (window_egl->surface) {
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if (!eglDestroySurface (window_egl->display, window_egl->surface))
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GST_DEBUG ("failed to destroy surface %d, %s\n", window_egl->surface,
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WinEGLErrorString ());
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window_egl->surface = NULL;
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}
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if (window_egl->display) {
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if (!eglTerminate (window_egl->display))
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GST_DEBUG ("failed to terminate display %d, %s\n", window_egl->display,
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WinEGLErrorString ());
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window_egl->display = NULL;
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}
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}
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GstGLAPI
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gst_gl_window_win32_egl_get_gl_api (GstGLWindow * window)
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{
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return GST_GL_API_GLES2;
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}
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const gchar *
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WinEGLErrorString ()
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{
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EGLint nErr = eglGetError ();
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switch (nErr) {
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case EGL_SUCCESS:
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return "EGL_SUCCESS";
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case EGL_BAD_DISPLAY:
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return "EGL_BAD_DISPLAY";
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case EGL_NOT_INITIALIZED:
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return "EGL_NOT_INITIALIZED";
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case EGL_BAD_ACCESS:
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return "EGL_BAD_ACCESS";
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case EGL_BAD_ALLOC:
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return "EGL_BAD_ALLOC";
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case EGL_BAD_ATTRIBUTE:
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return "EGL_BAD_ATTRIBUTE";
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case EGL_BAD_CONFIG:
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return "EGL_BAD_CONFIG";
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case EGL_BAD_CONTEXT:
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return "EGL_BAD_CONTEXT";
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case EGL_BAD_CURRENT_SURFACE:
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return "EGL_BAD_CURRENT_SURFACE";
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case EGL_BAD_MATCH:
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return "EGL_BAD_MATCH";
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case EGL_BAD_NATIVE_PIXMAP:
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return "EGL_BAD_NATIVE_PIXMAP";
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case EGL_BAD_NATIVE_WINDOW:
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return "EGL_BAD_NATIVE_WINDOW";
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case EGL_BAD_PARAMETER:
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return "EGL_BAD_PARAMETER";
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case EGL_BAD_SURFACE:
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return "EGL_BAD_SURFACE";
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default:
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return "unknown";
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}
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}
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