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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;
+ }; /**< 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);
+
+#ifdef HAVE_PIPE_LOADER_SW
+
+/**
+ * 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);
+
+#endif
+
+#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 */