You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
97 lines
3.2 KiB
97 lines
3.2 KiB
/*
|
|
* Copyright © 2014, 2015 Collabora, Ltd.
|
|
*
|
|
* 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, sublicense, 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
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* 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.
|
|
*/
|
|
|
|
#ifndef WESTON_LINUX_DMABUF_H
|
|
#define WESTON_LINUX_DMABUF_H
|
|
|
|
#include <stdint.h>
|
|
|
|
#define MAX_DMABUF_PLANES 4
|
|
#ifndef DRM_FORMAT_MOD_INVALID
|
|
#define DRM_FORMAT_MOD_INVALID ((1ULL<<56) - 1)
|
|
#endif
|
|
#ifndef DRM_FORMAT_MOD_LINEAR
|
|
#define DRM_FORMAT_MOD_LINEAR 0
|
|
#endif
|
|
|
|
struct linux_dmabuf_buffer;
|
|
typedef void (*dmabuf_user_data_destroy_func)(
|
|
struct linux_dmabuf_buffer *buffer);
|
|
|
|
struct dmabuf_attributes {
|
|
int32_t width;
|
|
int32_t height;
|
|
uint32_t format;
|
|
uint32_t flags; /* enum zlinux_buffer_params_flags */
|
|
int n_planes;
|
|
int fd[MAX_DMABUF_PLANES];
|
|
uint32_t offset[MAX_DMABUF_PLANES];
|
|
uint32_t stride[MAX_DMABUF_PLANES];
|
|
uint64_t modifier[MAX_DMABUF_PLANES];
|
|
};
|
|
|
|
struct linux_dmabuf_buffer {
|
|
struct wl_resource *buffer_resource;
|
|
struct wl_resource *params_resource;
|
|
struct weston_compositor *compositor;
|
|
struct dmabuf_attributes attributes;
|
|
|
|
void *user_data;
|
|
dmabuf_user_data_destroy_func user_data_destroy_func;
|
|
|
|
/* XXX:
|
|
*
|
|
* Add backend private data. This would be for the backend
|
|
* to do all additional imports it might ever use in advance.
|
|
* The basic principle, even if not implemented in drivers today,
|
|
* is that dmabufs are first attached, but the actual allocation
|
|
* is deferred to first use. This would allow the exporter and all
|
|
* attachers to agree on how to allocate.
|
|
*
|
|
* The DRM backend would use this to create drmFBs for each
|
|
* dmabuf_buffer, just in case at some point it would become
|
|
* feasible to scan it out directly. This would improve the
|
|
* possibilities to successfully scan out, avoiding compositing.
|
|
*/
|
|
};
|
|
|
|
int
|
|
linux_dmabuf_setup(struct weston_compositor *compositor);
|
|
|
|
struct linux_dmabuf_buffer *
|
|
linux_dmabuf_buffer_get(struct wl_resource *resource);
|
|
|
|
void
|
|
linux_dmabuf_buffer_set_user_data(struct linux_dmabuf_buffer *buffer,
|
|
void *data,
|
|
dmabuf_user_data_destroy_func func);
|
|
void *
|
|
linux_dmabuf_buffer_get_user_data(struct linux_dmabuf_buffer *buffer);
|
|
|
|
void
|
|
linux_dmabuf_buffer_send_server_error(struct linux_dmabuf_buffer *buffer,
|
|
const char *msg);
|
|
|
|
#endif /* WESTON_LINUX_DMABUF_H */
|
|
|