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/* -*- mode:c; c-basic-offset: 8; indent-tabs-mode: nil; -*- */
/*
*
* Copyright (C) 2016 Endless Mobile, Inc
* Copyright (C) 2016-2021 MATE Developers
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* Author:
* Cosimo Cecchi <cosimo@endlessm.com>
*/
/* for strcasestr */
#define _GNU_SOURCE
#include <config.h>
#include <gtk/gtk.h>
#include <locale.h>
#include <stdlib.h>
#include <string.h>
#ifdef GDK_WINDOWING_X11
#define GL_GLEXT_PROTOTYPES
#include <gdk/gdkx.h>
#include <GLES2/gl2.h>
#include <GLES2/gl2ext.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#endif
#include "mate-session-check-accelerated-common.h"
#ifdef GDK_WINDOWING_X11
static EGLDisplay
get_display (void *native)
{
EGLDisplay dpy = NULL;
const char *client_exts = eglQueryString (NULL, EGL_EXTENSIONS);
if (g_strstr_len (client_exts, -1, "EGL_KHR_platform_base")) {
PFNEGLGETPLATFORMDISPLAYEXTPROC get_platform_display =
(void *) eglGetProcAddress ("eglGetPlatformDisplay");
if (get_platform_display)
dpy = get_platform_display (EGL_PLATFORM_X11_KHR, native, NULL);
if (dpy)
return dpy;
}
if (g_strstr_len (client_exts, -1, "EGL_EXT_platform_base")) {
PFNEGLGETPLATFORMDISPLAYEXTPROC get_platform_display =
(void *) eglGetProcAddress ("eglGetPlatformDisplayEXT");
if (get_platform_display)
dpy = get_platform_display (EGL_PLATFORM_X11_KHR, native, NULL);
if (dpy)
return dpy;
}
return eglGetDisplay ((EGLNativeDisplayType) native);
}
static char *
get_gles_renderer (void)
{
/* Select GLESv2 config */
EGLint attribs[] = {
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
EGL_RED_SIZE, 1,
EGL_GREEN_SIZE, 1,
EGL_BLUE_SIZE, 1,
EGL_NONE
};
EGLint ctx_attribs[] = {
EGL_CONTEXT_CLIENT_VERSION, 2,
EGL_NONE
};
gboolean egl_inited = FALSE;
GdkDisplay *gdk_dpy;
Display *display;
Window win = None;
EGLContext egl_ctx = NULL;
EGLDisplay egl_dpy = NULL;
EGLSurface egl_surf = NULL;
char *renderer = NULL;
gdk_dpy = gdk_display_get_default ();
gdk_x11_display_error_trap_push (gdk_dpy);
display = GDK_DISPLAY_XDISPLAY (gdk_dpy);
egl_dpy = get_display (display);
if (!egl_dpy) {
g_warning ("eglGetDisplay() failed");
goto out;
}
EGLint egl_major, egl_minor;
if (!eglInitialize (egl_dpy, &egl_major, &egl_minor)) {
g_warning ("eglInitialize() failed");
goto out;
}
egl_inited = TRUE;
EGLint num_configs;
EGLConfig config;
if (!eglChooseConfig (egl_dpy, attribs, &config, 1, &num_configs)) {
g_warning ("Failed to get EGL configuration");
goto out;
}
EGLint vid;
if (!eglGetConfigAttrib (egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
g_warning ("Failed to get EGL visual");
goto out;
}
/* The X window visual must match the EGL config */
XVisualInfo *vis_info, vis_template;
int num_visuals;
vis_template.visualid = vid;
vis_info = XGetVisualInfo (display, VisualIDMask, &vis_template, &num_visuals);
if (!vis_info) {
g_warning ("Failed to get X visual");
goto out;
}
XSetWindowAttributes attr;
attr.colormap = XCreateColormap (display, DefaultRootWindow (display),
vis_info->visual, AllocNone);
win = XCreateWindow (display, DefaultRootWindow (display),
0, 0, /* x, y */
1, 1, /* width, height */
0, /* border_width */
vis_info->depth, InputOutput,
vis_info->visual, CWColormap, &attr);
XFree (vis_info);
eglBindAPI (EGL_OPENGL_ES_API);
egl_ctx = eglCreateContext (egl_dpy, config, EGL_NO_CONTEXT, ctx_attribs);
if (!egl_ctx) {
g_warning ("Failed to create EGL context");
goto out;
}
egl_surf = eglCreateWindowSurface (egl_dpy, config, win, NULL);
if (!egl_surf) {
g_warning ("Failed to create EGL surface");
goto out;
}
if (!eglMakeCurrent (egl_dpy, egl_surf, egl_surf, egl_ctx)) {
g_warning ("eglMakeCurrent() failed");
goto out;
}
renderer = g_strdup ((const char *) glGetString (GL_RENDERER));
out:
if (egl_ctx)
eglDestroyContext (egl_dpy, egl_ctx);
if (egl_surf)
eglDestroySurface (egl_dpy, egl_surf);
if (egl_inited)
eglTerminate (egl_dpy);
if (win != None)
XDestroyWindow (display, win);
gdk_x11_display_error_trap_pop_ignored (gdk_dpy);
return renderer;
}
#endif
static gboolean print_renderer = FALSE;
static const GOptionEntry entries[] = {
{ "print-renderer", 'p', 0, G_OPTION_ARG_NONE, &print_renderer, "Print EGL renderer name", NULL },
{ NULL, 0, 0, G_OPTION_ARG_NONE, NULL, NULL, NULL },
};
int
main (int argc,
char **argv)
{
GOptionContext *context;
int ret = HELPER_NO_ACCEL;
GError *error = NULL;
setlocale (LC_ALL, "");
context = g_option_context_new (NULL);
g_option_context_add_group (context, gtk_get_option_group (TRUE));
g_option_context_add_main_entries (context, entries, NULL);
if (!g_option_context_parse (context, &argc, &argv, &error)) {
g_error ("Can't parse command line: %s\n", error->message);
g_error_free (error);
goto out;
}
#ifdef GDK_WINDOWING_X11
char *renderer = get_gles_renderer ();
if (renderer != NULL) {
if (print_renderer)
g_print ("%s", renderer);
if (strcasestr (renderer, "llvmpipe"))
ret = HELPER_SOFTWARE_RENDERING;
else
ret = HELPER_ACCEL;
}
g_free (renderer);
#endif
out:
g_option_context_free (context);
return ret;
}
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