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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 TUNGSTEN GRAPHICS 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.
*
**************************************************************************/
/**
* \file Library that provides device enumeration and creation of
* winsys/pipe_screen instances.
*/
#ifndef PIPE_LOADER_H
#define PIPE_LOADER_H
#include "pipe/p_compiler.h"
#ifdef __cplusplus
extern "C" {
#endif
struct pipe_screen;
enum pipe_loader_device_type {
PIPE_LOADER_DEVICE_SOFTWARE,
PIPE_LOADER_DEVICE_PCI,
NUM_PIPE_LOADER_DEVICE_TYPES
};
/**
* A device known to the pipe loader.
*/
struct pipe_loader_device {
enum pipe_loader_device_type type;
union {
struct {
int vendor_id;
int chip_id;
} pci;
} u; /**< Discriminated by \a type */
const char *driver_name;
const struct pipe_loader_ops *ops;
};
/**
* Get a list of known devices.
*
* \param devs Array that will be filled with pointers to the devices
* available in the system.
* \param ndev Maximum number of devices to return.
* \return Number of devices available in the system.
*/
int
pipe_loader_probe(struct pipe_loader_device **devs, int ndev);
/**
* Create a pipe_screen for the specified device.
*
* \param dev Device the screen will be created for.
* \param library_paths Colon-separated list of filesystem paths that
* will be used to look for the pipe driver
* module that handles this device.
*/
struct pipe_screen *
pipe_loader_create_screen(struct pipe_loader_device *dev,
const char *library_paths);
/**
* Release resources allocated for a list of devices.
*
* Should be called when the specified devices are no longer in use to
* release any resources allocated by pipe_loader_probe.
*
* \param devs Devices to release.
* \param ndev Number of devices to release.
*/
void
pipe_loader_release(struct pipe_loader_device **devs, int ndev);
/**
* Get a list of known software devices.
*
* This function is platform-specific.
*
* \sa pipe_loader_probe
*/
int
pipe_loader_sw_probe(struct pipe_loader_device **devs, int ndev);
#ifdef HAVE_PIPE_LOADER_DRM
/**
* Get a list of known DRM devices.
*
* This function is platform-specific.
*
* \sa pipe_loader_probe
*/
int
pipe_loader_drm_probe(struct pipe_loader_device **devs, int ndev);
/**
* Initialize a DRM device in an already opened fd.
*
* This function is platform-specific.
*
* \sa pipe_loader_probe
*/
boolean
pipe_loader_drm_probe_fd(struct pipe_loader_device **dev, int fd);
#endif
#ifdef __cplusplus
}
#endif
#endif /* PIPE_LOADER_H */
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