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| |
| #ifndef _DRM_DRIVER_H_ |
| #define _DRM_DRIVER_H_ |
| |
| #include "pipe/p_compiler.h" |
| |
| struct pipe_screen; |
| struct pipe_context; |
| struct pipe_resource; |
| |
| #define DRM_API_HANDLE_TYPE_SHARED 0 |
| #define DRM_API_HANDLE_TYPE_KMS 1 |
| |
| /** |
| * For use with pipe_screen::{texture_from_handle|texture_get_handle}. |
| */ |
| struct winsys_handle |
| { |
| /** |
| * Unused for texture_from_handle, always |
| * DRM_API_HANDLE_TYPE_SHARED. Input to texture_get_handle, |
| * use TEXTURE_USAGE to select handle for kms or ipc. |
| */ |
| unsigned type; |
| /** |
| * Input to texture_from_handle. |
| * Output for texture_get_handle. |
| */ |
| unsigned handle; |
| /** |
| * Input to texture_from_handle. |
| * Output for texture_get_handle. |
| */ |
| unsigned stride; |
| }; |
| |
| |
| |
| /** |
| * Configuration queries. |
| */ |
| enum drm_conf { |
| /* How many frames to allow before throttling. Or -1 to indicate any number */ |
| DRM_CONF_THROTTLE, /* DRM_CONF_INT. */ |
| 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 sufix/prefix of the binary, used by egl. |
| */ |
| const char *name; |
| |
| /** |
| * Kernel driver name, as accepted by drmOpenByName. |
| */ |
| 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); |
| |
| |
| /** |
| * 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 struct drm_driver_descriptor driver_descriptor; |
| |
| /** |
| * Instantiate a drm_driver_descriptor struct. |
| */ |
| #define DRM_DRIVER_DESCRIPTOR(name_str, driver_name_str, func, conf) \ |
| struct drm_driver_descriptor driver_descriptor = { \ |
| .name = name_str, \ |
| .driver_name = driver_name_str, \ |
| .create_screen = func, \ |
| .configuration = (conf), \ |
| }; |
| |
| #endif |