|
#ifndef _DRM_DRIVER_H_
|
#define _DRM_DRIVER_H_
|
|
#include "pipe/p_compiler.h"
|
|
struct pipe_screen;
|
struct pipe_screen_config;
|
struct pipe_context;
|
struct pipe_resource;
|
|
#define DRM_API_HANDLE_TYPE_SHARED 0
|
#define DRM_API_HANDLE_TYPE_KMS 1
|
#define DRM_API_HANDLE_TYPE_FD 2
|
|
|
/**
|
* For use with pipe_screen::{texture_from_handle|texture_get_handle}.
|
*/
|
struct winsys_handle
|
{
|
/**
|
* Input for texture_from_handle, valid values are
|
* DRM_API_HANDLE_TYPE_SHARED or DRM_API_HANDLE_TYPE_FD.
|
* Input to texture_get_handle,
|
* to select handle for kms, flink, or prime.
|
*/
|
unsigned type;
|
/**
|
* Input for texture_get_handle, allows to export the offset
|
* of a specific layer of an array texture.
|
*/
|
unsigned layer;
|
/**
|
* Input to texture_from_handle.
|
* Output for texture_get_handle.
|
*/
|
unsigned handle;
|
/**
|
* Input to texture_from_handle.
|
* Output for texture_get_handle.
|
*/
|
unsigned stride;
|
/**
|
* Input to texture_from_handle.
|
* Output for texture_get_handle.
|
*/
|
unsigned offset;
|
|
/**
|
* Input to resource_from_handle.
|
* Output from resource_get_handle.
|
*/
|
uint64_t modifier;
|
};
|
|
|
|
/**
|
* Configuration queries.
|
*/
|
enum drm_conf {
|
/* How many frames to allow before throttling. Or -1 to indicate any number */
|
DRM_CONF_THROTTLE, /* DRM_CONF_INT. */
|
/* Can this driver, running on this kernel, import and export dma-buf fds? */
|
DRM_CONF_SHARE_FD, /* DRM_CONF_BOOL. */
|
/* XML string describing the available config options. */
|
DRM_CONF_XML_OPTIONS, /* DRM_CONF_POINTER */
|
DRM_CONF_MAX
|
};
|
|
/**
|
* Type of configuration answer
|
*/
|
enum drm_conf_type {
|
DRM_CONF_INT,
|
DRM_CONF_BOOL,
|
DRM_CONF_FLOAT,
|
DRM_CONF_POINTER
|
};
|
|
/**
|
* Return value from the configuration function.
|
*/
|
struct drm_conf_ret {
|
enum drm_conf_type type;
|
union {
|
int val_int;
|
bool val_bool;
|
float val_float;
|
void *val_pointer;
|
} val;
|
};
|
|
struct drm_driver_descriptor
|
{
|
/**
|
* Identifying prefix/suffix of the binary, used by the pipe-loader.
|
*/
|
const char *driver_name;
|
|
/**
|
* Create a pipe srcreen.
|
*
|
* This function does any wrapping of the screen.
|
* For example wrapping trace or rbug debugging drivers around it.
|
*/
|
struct pipe_screen* (*create_screen)(int drm_fd,
|
const struct pipe_screen_config *config);
|
|
/**
|
* Return a configuration value.
|
*
|
* If this function is NULL, or if it returns NULL
|
* the state tracker- or state
|
* tracker manager should provide a reasonable default value.
|
*/
|
const struct drm_conf_ret *(*configuration) (enum drm_conf conf);
|
};
|
|
extern const struct drm_driver_descriptor driver_descriptor;
|
|
/**
|
* Instantiate a drm_driver_descriptor struct.
|
*/
|
#define DRM_DRIVER_DESCRIPTOR(driver_name_str, func, conf) \
|
const struct drm_driver_descriptor driver_descriptor = { \
|
.driver_name = driver_name_str, \
|
.create_screen = func, \
|
.configuration = (conf), \
|
};
|
|
#endif
|
