/*
* Copyright © 2011 Kristian Høgsberg
* Copyright © 2011 Benjamin Franzke
*
* 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.
*
* Authors:
* Kristian Høgsberg <krh@bitplanet.net>
* Benjamin Franzke <benjaminfranzke@googlemail.com>
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stddef.h>
#include <unistd.h>
#include <wayland-server.h>
#include "wayland-drm.h"
#include "wayland-drm-server-protocol.h"
#define MIN(x,y) (((x)<(y))?(x):(y))
struct wl_drm {
struct wl_display *display;
struct wl_global *wl_drm_global;
void *user_data;
char *device_name;
uint32_t flags;
struct wayland_drm_callbacks *callbacks;
struct wl_buffer_interface buffer_interface;
};
static void
destroy_buffer(struct wl_resource *resource)
{
struct wl_drm_buffer *buffer = resource->data;
struct wl_drm *drm = buffer->drm;
drm->callbacks->release_buffer(drm->user_data, buffer);
free(buffer);
}
static void
buffer_destroy(struct wl_client *client, struct wl_resource *resource)
{
wl_resource_destroy(resource);
}
static void
create_buffer(struct wl_client *client, struct wl_resource *resource,
uint32_t id, uint32_t name, int fd,
int32_t width, int32_t height,
uint32_t format,
int32_t offset0, int32_t stride0,
int32_t offset1, int32_t stride1,
int32_t offset2, int32_t stride2)
{
struct wl_drm *drm = resource->data;
struct wl_drm_buffer *buffer;
buffer = calloc(1, sizeof *buffer);
if (buffer == NULL) {
wl_resource_post_no_memory(resource);
return;
}
buffer->drm = drm;
buffer->width = width;
buffer->height = height;
buffer->format = format;
buffer->offset[0] = offset0;
buffer->stride[0] = stride0;
buffer->offset[1] = offset1;
buffer->stride[1] = stride1;
buffer->offset[2] = offset2;
buffer->stride[2] = stride2;
drm->callbacks->reference_buffer(drm->user_data, name, fd, buffer);
if (buffer->driver_buffer == NULL) {
wl_resource_post_error(resource,
WL_DRM_ERROR_INVALID_NAME,
"invalid name");
return;
}
buffer->resource =
wl_resource_create(client, &wl_buffer_interface, 1, id);
if (!buffer->resource) {
wl_resource_post_no_memory(resource);
free(buffer);
return;
}
wl_resource_set_implementation(buffer->resource,
(void (**)(void)) &drm->buffer_interface,
buffer, destroy_buffer);
}
static void
drm_create_buffer(struct wl_client *client, struct wl_resource *resource,
uint32_t id, uint32_t name, int32_t width, int32_t height,
uint32_t stride, uint32_t format)
{
switch (format) {
case WL_DRM_FORMAT_ARGB8888:
case WL_DRM_FORMAT_XRGB8888:
case WL_DRM_FORMAT_YUYV:
case WL_DRM_FORMAT_RGB565:
break;
default:
wl_resource_post_error(resource,
WL_DRM_ERROR_INVALID_FORMAT,
"invalid format");
return;
}
create_buffer(client, resource, id,
name, -1, width, height, format, 0, stride, 0, 0, 0, 0);
}
static void
drm_create_planar_buffer(struct wl_client *client,
struct wl_resource *resource,
uint32_t id, uint32_t name,
int32_t width, int32_t height, uint32_t format,
int32_t offset0, int32_t stride0,
int32_t offset1, int32_t stride1,
int32_t offset2, int32_t stride2)
{
switch (format) {
case WL_DRM_FORMAT_YUV410:
case WL_DRM_FORMAT_YUV411:
case WL_DRM_FORMAT_YUV420:
case WL_DRM_FORMAT_YUV422:
case WL_DRM_FORMAT_YUV444:
case WL_DRM_FORMAT_NV12:
case WL_DRM_FORMAT_NV16:
break;
default:
wl_resource_post_error(resource,
WL_DRM_ERROR_INVALID_FORMAT,
"invalid format");
return;
}
create_buffer(client, resource, id, name, -1, width, height, format,
offset0, stride0, offset1, stride1, offset2, stride2);
}
static void
drm_create_prime_buffer(struct wl_client *client,
struct wl_resource *resource,
uint32_t id, int fd,
int32_t width, int32_t height, uint32_t format,
int32_t offset0, int32_t stride0,
int32_t offset1, int32_t stride1,
int32_t offset2, int32_t stride2)
{
create_buffer(client, resource, id, 0, fd, width, height, format,
offset0, stride0, offset1, stride1, offset2, stride2);
close(fd);
}
static void
drm_authenticate(struct wl_client *client,
struct wl_resource *resource, uint32_t id)
{
struct wl_drm *drm = resource->data;
if (drm->callbacks->authenticate(drm->user_data, id) < 0)
wl_resource_post_error(resource,
WL_DRM_ERROR_AUTHENTICATE_FAIL,
"authenicate failed");
else
wl_resource_post_event(resource, WL_DRM_AUTHENTICATED);
}
static const struct wl_drm_interface drm_interface = {
drm_authenticate,
drm_create_buffer,
drm_create_planar_buffer,
drm_create_prime_buffer
};
static void
bind_drm(struct wl_client *client, void *data, uint32_t version, uint32_t id)
{
struct wl_drm *drm = data;
struct wl_resource *resource;
uint32_t capabilities;
resource = wl_resource_create(client, &wl_drm_interface,
MIN(version, 2), id);
if (!resource) {
wl_client_post_no_memory(client);
return;
}
wl_resource_set_implementation(resource, &drm_interface, data, NULL);
wl_resource_post_event(resource, WL_DRM_DEVICE, drm->device_name);
wl_resource_post_event(resource, WL_DRM_FORMAT,
WL_DRM_FORMAT_ARGB8888);
wl_resource_post_event(resource, WL_DRM_FORMAT,
WL_DRM_FORMAT_XRGB8888);
wl_resource_post_event(resource, WL_DRM_FORMAT,
WL_DRM_FORMAT_RGB565);
wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV410);
wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV411);
wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV420);
wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV422);
wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUV444);
wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_NV12);
wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_NV16);
wl_resource_post_event(resource, WL_DRM_FORMAT, WL_DRM_FORMAT_YUYV);
capabilities = 0;
if (drm->flags & WAYLAND_DRM_PRIME)
capabilities |= WL_DRM_CAPABILITY_PRIME;
if (version >= 2)
wl_resource_post_event(resource, WL_DRM_CAPABILITIES, capabilities);
}
struct wl_drm_buffer *
wayland_drm_buffer_get(struct wl_drm *drm, struct wl_resource *resource)
{
if (resource == NULL)
return NULL;
if (wl_resource_instance_of(resource, &wl_buffer_interface,
&drm->buffer_interface))
return wl_resource_get_user_data(resource);
else
return NULL;
}
struct wl_drm *
wayland_drm_init(struct wl_display *display, char *device_name,
struct wayland_drm_callbacks *callbacks, void *user_data,
uint32_t flags)
{
struct wl_drm *drm;
drm = malloc(sizeof *drm);
if (!drm)
return NULL;
drm->display = display;
drm->device_name = strdup(device_name);
drm->callbacks = callbacks;
drm->user_data = user_data;
drm->flags = flags;
drm->buffer_interface.destroy = buffer_destroy;
drm->wl_drm_global =
wl_global_create(display, &wl_drm_interface, 2,
drm, bind_drm);
return drm;
}
void
wayland_drm_uninit(struct wl_drm *drm)
{
free(drm->device_name);
wl_global_destroy(drm->wl_drm_global);
free(drm);
}
uint32_t
wayland_drm_buffer_get_format(struct wl_drm_buffer *buffer)
{
return buffer->format;
}
void *
wayland_drm_buffer_get_buffer(struct wl_drm_buffer *buffer)
{
return buffer->driver_buffer;
}