diff options
Diffstat (limited to 'tools/gnome-session-check-accelerated-gles-helper.c')
| -rw-r--r-- | tools/gnome-session-check-accelerated-gles-helper.c | 201 |
1 files changed, 201 insertions, 0 deletions
diff --git a/tools/gnome-session-check-accelerated-gles-helper.c b/tools/gnome-session-check-accelerated-gles-helper.c new file mode 100644 index 0000000..6a4463d --- /dev/null +++ b/tools/gnome-session-check-accelerated-gles-helper.c @@ -0,0 +1,201 @@ +/* -*- mode:c; c-basic-offset: 8; indent-tabs-mode: nil; -*- */ +/* + * + * Copyright (C) 2016 Endless Mobile, Inc + * + * 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> +#endif + +#include "gnome-session-check-accelerated-common.h" + +#ifdef GDK_WINDOWING_X11 +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; + Display *display; + Window win = None; + EGLContext egl_ctx = NULL; + EGLDisplay egl_dpy = NULL; + EGLSurface egl_surf = NULL; + char *renderer = NULL; + + gdk_error_trap_push (); + + display = GDK_DISPLAY_XDISPLAY (gdk_display_get_default ()); + egl_dpy = eglGetDisplay (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_error_trap_pop_ignored (); + 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 }, +}; + +int +main (int argc, + char **argv) +{ + char *renderer = NULL; + 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 + renderer = get_gles_renderer (); +#endif + + if (renderer != NULL) { + if (print_renderer) + g_print ("%s", renderer); + if (strcasestr (renderer, "llvmpipe")) + ret = HELPER_SOFTWARE_RENDERING; + else + ret = HELPER_ACCEL; + } + +out: + return ret; +} |