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/*
* Mesa 3-D graphics library
* Version: 7.8
*
* Copyright (C) 2009-2010 Chia-I Wu <olv@0xlab.org>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included
* in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include "util/u_debug.h"
#include "util/u_memory.h"
#include "util/u_string.h"
#include "egllog.h"
#include "native_x11.h"
#include "x11_screen.h"
#include "state_tracker/drm_driver.h"
#define X11_PROBE_MAGIC 0x11980BE /* "X11PROBE" */
static void
x11_probe_destroy(struct native_probe *nprobe)
{
if (nprobe->data)
FREE(nprobe->data);
FREE(nprobe);
}
static struct native_probe *
x11_create_probe(void *dpy)
{
struct native_probe *nprobe;
struct x11_screen *xscr;
int scr;
const char *driver_name = NULL;
Display *xdpy;
nprobe = CALLOC_STRUCT(native_probe);
if (!nprobe)
return NULL;
xdpy = dpy;
if (!xdpy) {
xdpy = XOpenDisplay(NULL);
if (!xdpy) {
FREE(nprobe);
return NULL;
}
}
scr = DefaultScreen(xdpy);
xscr = x11_screen_create(xdpy, scr);
if (xscr) {
if (x11_screen_support(xscr, X11_SCREEN_EXTENSION_DRI2)) {
driver_name = x11_screen_probe_dri2(xscr, NULL, NULL);
if (driver_name)
nprobe->data = strdup(driver_name);
}
x11_screen_destroy(xscr);
}
if (xdpy != dpy)
XCloseDisplay(xdpy);
nprobe->magic = X11_PROBE_MAGIC;
nprobe->display = dpy;
nprobe->destroy = x11_probe_destroy;
return nprobe;
}
static enum native_probe_result
x11_get_probe_result(struct native_probe *nprobe)
{
if (!nprobe || nprobe->magic != X11_PROBE_MAGIC)
return NATIVE_PROBE_UNKNOWN;
/* this is a software driver */
if (!driver_descriptor.create_screen)
return NATIVE_PROBE_SUPPORTED;
/* the display does not support DRI2 or the driver mismatches */
if (!nprobe->data || strcmp(driver_descriptor.name, (const char *) nprobe->data) != 0)
return NATIVE_PROBE_FALLBACK;
return NATIVE_PROBE_EXACT;
}
static struct native_display *
native_create_display(void *dpy, struct native_event_handler *event_handler,
void *user_data)
{
struct native_display *ndpy = NULL;
boolean force_sw;
force_sw = debug_get_bool_option("EGL_SOFTWARE", FALSE);
if (!force_sw) {
ndpy = x11_create_dri2_display((Display *) dpy,
event_handler, user_data);
}
if (!ndpy) {
EGLint level = (force_sw) ? _EGL_INFO : _EGL_WARNING;
_eglLog(level, "use software fallback");
ndpy = x11_create_ximage_display((Display *) dpy,
event_handler, user_data);
}
return ndpy;
}
static const struct native_platform x11_platform = {
"X11", /* name */
x11_create_probe,
x11_get_probe_result,
native_create_display
};
const struct native_platform *
native_get_x11_platform(void)
{
return &x11_platform;
}
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