| /************************************************************************** |
| * |
| * Copyright (C) 2020 Chromium |
| * |
| * 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 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. |
| * |
| **************************************************************************/ |
| |
| #include "virgl_resource.h" |
| |
| #include <assert.h> |
| #include <errno.h> |
| #include <string.h> |
| |
| #include "util/u_hash_table.h" |
| #include "util/u_pointer.h" |
| #include "virgl_util.h" |
| |
| static struct util_hash_table *virgl_resource_table; |
| static struct virgl_resource_pipe_callbacks pipe_callbacks; |
| |
| static void |
| virgl_resource_destroy_func(void *val) |
| { |
| struct virgl_resource *res = (struct virgl_resource *)val; |
| |
| if (res->pipe_resource) |
| pipe_callbacks.unref(res->pipe_resource, pipe_callbacks.data); |
| |
| free(res); |
| } |
| |
| int |
| virgl_resource_table_init(const struct virgl_resource_pipe_callbacks *callbacks) |
| { |
| virgl_resource_table = util_hash_table_create(hash_func_u32, |
| compare_func, |
| virgl_resource_destroy_func); |
| if (!virgl_resource_table) |
| return ENOMEM; |
| |
| pipe_callbacks = *callbacks; |
| |
| return 0; |
| } |
| |
| void |
| virgl_resource_table_cleanup(void) |
| { |
| util_hash_table_destroy(virgl_resource_table); |
| memset(&pipe_callbacks, 0, sizeof(pipe_callbacks)); |
| } |
| |
| void |
| virgl_resource_table_reset(void) |
| { |
| util_hash_table_clear(virgl_resource_table); |
| } |
| |
| static struct virgl_resource * |
| virgl_resource_create(uint32_t res_id) |
| { |
| struct virgl_resource *res; |
| enum pipe_error err; |
| |
| res = calloc(1, sizeof(*res)); |
| if (!res) |
| return NULL; |
| |
| err = util_hash_table_set(virgl_resource_table, |
| uintptr_to_pointer(res_id), |
| res); |
| if (err != PIPE_OK) { |
| free(res); |
| return NULL; |
| } |
| |
| res->res_id = res_id; |
| |
| return res; |
| } |
| |
| int |
| virgl_resource_create_from_pipe(uint32_t res_id, struct pipe_resource *pres) |
| { |
| struct virgl_resource *res; |
| |
| res = virgl_resource_create(res_id); |
| if (!res) |
| return ENOMEM; |
| |
| /* take ownership */ |
| res->pipe_resource = pres; |
| |
| return 0; |
| } |
| |
| int |
| virgl_resource_create_from_iov(uint32_t res_id, |
| const struct iovec *iov, |
| int iov_count) |
| { |
| struct virgl_resource *res; |
| |
| if (iov_count) |
| assert(iov); |
| |
| res = virgl_resource_create(res_id); |
| if (!res) |
| return ENOMEM; |
| |
| res->iov = iov; |
| res->iov_count = iov_count; |
| |
| return 0; |
| } |
| |
| void |
| virgl_resource_remove(uint32_t res_id) |
| { |
| util_hash_table_remove(virgl_resource_table, uintptr_to_pointer(res_id)); |
| } |
| |
| struct virgl_resource *virgl_resource_lookup(uint32_t res_id) |
| { |
| return util_hash_table_get(virgl_resource_table, |
| uintptr_to_pointer(res_id)); |
| } |
| |
| int |
| virgl_resource_attach_iov(struct virgl_resource *res, |
| const struct iovec *iov, |
| int iov_count) |
| { |
| if (res->iov) |
| return EINVAL; |
| |
| res->iov = iov; |
| res->iov_count = iov_count; |
| |
| if (res->pipe_resource) { |
| pipe_callbacks.attach_iov(res->pipe_resource, |
| iov, |
| iov_count, |
| pipe_callbacks.data); |
| } |
| |
| return 0; |
| } |
| |
| void |
| virgl_resource_detach_iov(struct virgl_resource *res) |
| { |
| if (!res->iov) |
| return; |
| |
| if (res->pipe_resource) |
| pipe_callbacks.detach_iov(res->pipe_resource, pipe_callbacks.data); |
| |
| res->iov = NULL; |
| res->iov_count = 0; |
| } |