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/**************************************************************************
*
* Copyright 2012 Francisco Jerez
* All Rights Reserved.
*
* 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, sub license, 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 (including the
* next paragraph) 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 NON-INFRINGEMENT.
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS 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 "pipe_loader_priv.h"
#include "util/u_inlines.h"
#include "util/u_memory.h"
#include "util/u_string.h"
#include "util/u_dl.h"
#include "util/xmlconfig.h"
#include "util/xmlpool.h"
#include <string.h>
#ifdef _MSC_VER
#include <stdlib.h>
#define PATH_MAX _MAX_PATH
#endif
#define MODULE_PREFIX "pipe_"
static int (*backends[])(struct pipe_loader_device **, int) = {
#ifdef HAVE_LIBDRM
&pipe_loader_drm_probe,
#endif
&pipe_loader_sw_probe
};
const char gallium_driinfo_xml[] =
DRI_CONF_BEGIN
#include "driinfo_gallium.h"
DRI_CONF_END
;
int
pipe_loader_probe(struct pipe_loader_device **devs, int ndev)
{
int i, n = 0;
for (i = 0; i < ARRAY_SIZE(backends); i++)
n += backends[i](&devs[n], MAX2(0, ndev - n));
return n;
}
void
pipe_loader_release(struct pipe_loader_device **devs, int ndev)
{
int i;
for (i = 0; i < ndev; i++)
devs[i]->ops->release(&devs[i]);
}
void
pipe_loader_base_release(struct pipe_loader_device **dev)
{
driDestroyOptionCache(&(*dev)->option_cache);
driDestroyOptionInfo(&(*dev)->option_info);
FREE(*dev);
*dev = NULL;
}
const struct drm_conf_ret *
pipe_loader_configuration(struct pipe_loader_device *dev,
enum drm_conf conf)
{
return dev->ops->configuration(dev, conf);
}
void
pipe_loader_load_options(struct pipe_loader_device *dev)
{
if (dev->option_info.info)
return;
const char *xml_options = gallium_driinfo_xml;
const struct drm_conf_ret *xml_options_conf =
pipe_loader_configuration(dev, DRM_CONF_XML_OPTIONS);
if (xml_options_conf)
xml_options = xml_options_conf->val.val_pointer;
driParseOptionInfo(&dev->option_info, xml_options);
driParseConfigFiles(&dev->option_cache, &dev->option_info, 0,
dev->driver_name);
}
char *
pipe_loader_get_driinfo_xml(const char *driver_name)
{
char *xml = pipe_loader_drm_get_driinfo_xml(driver_name);
if (!xml)
xml = strdup(gallium_driinfo_xml);
return xml;
}
struct pipe_screen *
pipe_loader_create_screen(struct pipe_loader_device *dev,
struct pipe_screen_config *config)
{
pipe_loader_load_options(dev);
config->options = &dev->option_cache;
return dev->ops->create_screen(dev, config);
}
struct util_dl_library *
pipe_loader_find_module(const char *driver_name,
const char *library_paths)
{
struct util_dl_library *lib;
const char *next;
char path[PATH_MAX];
int len, ret;
for (next = library_paths; *next; library_paths = next + 1) {
next = util_strchrnul(library_paths, ':');
len = next - library_paths;
if (len)
ret = util_snprintf(path, sizeof(path), "%.*s/%s%s%s",
len, library_paths,
MODULE_PREFIX, driver_name, UTIL_DL_EXT);
else
ret = util_snprintf(path, sizeof(path), "%s%s%s",
MODULE_PREFIX, driver_name, UTIL_DL_EXT);
if (ret > 0 && ret < sizeof(path)) {
lib = util_dl_open(path);
if (lib) {
return lib;
}
}
}
return NULL;
}
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