| /* |
| * Copyright 2014, 2015 Red Hat. |
| * |
| * 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 |
| * on the rights to use, copy, modify, merge, publish, distribute, sub |
| * license, 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 NON-INFRINGEMENT. IN NO EVENT SHALL |
| * THE AUTHOR(S) AND/OR THEIR SUPPLIERS 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 "util/u_inlines.h" |
| #include "virgl_context.h" |
| #include "virgl_resource.h" |
| #include "virgl_screen.h" |
| |
| bool virgl_res_needs_flush_wait(struct virgl_context *vctx, |
| struct virgl_resource *res, |
| unsigned usage) |
| { |
| struct virgl_screen *vs = virgl_screen(vctx->base.screen); |
| |
| if ((!(usage & PIPE_TRANSFER_UNSYNCHRONIZED)) && vs->vws->res_is_referenced(vs->vws, vctx->cbuf, res->hw_res)) { |
| return true; |
| } |
| return false; |
| } |
| |
| bool virgl_res_needs_readback(struct virgl_context *vctx, |
| struct virgl_resource *res, |
| unsigned usage) |
| { |
| bool readback = true; |
| if (res->clean) |
| readback = false; |
| else if (usage & PIPE_TRANSFER_DISCARD_RANGE) |
| readback = false; |
| else if ((usage & (PIPE_TRANSFER_WRITE | PIPE_TRANSFER_FLUSH_EXPLICIT)) == |
| (PIPE_TRANSFER_WRITE | PIPE_TRANSFER_FLUSH_EXPLICIT)) |
| readback = false; |
| return readback; |
| } |
| |
| static struct pipe_resource *virgl_resource_create(struct pipe_screen *screen, |
| const struct pipe_resource *templ) |
| { |
| struct virgl_screen *vs = virgl_screen(screen); |
| if (templ->target == PIPE_BUFFER) |
| return virgl_buffer_create(vs, templ); |
| else |
| return virgl_texture_create(vs, templ); |
| } |
| |
| static struct pipe_resource *virgl_resource_from_handle(struct pipe_screen *screen, |
| const struct pipe_resource *templ, |
| struct winsys_handle *whandle, |
| unsigned usage) |
| { |
| struct virgl_screen *vs = virgl_screen(screen); |
| if (templ->target == PIPE_BUFFER) |
| return NULL; |
| else |
| return virgl_texture_from_handle(vs, templ, whandle); |
| } |
| |
| void virgl_init_screen_resource_functions(struct pipe_screen *screen) |
| { |
| screen->resource_create = virgl_resource_create; |
| screen->resource_from_handle = virgl_resource_from_handle; |
| screen->resource_get_handle = u_resource_get_handle_vtbl; |
| screen->resource_destroy = u_resource_destroy_vtbl; |
| } |
| |
| void virgl_init_context_resource_functions(struct pipe_context *ctx) |
| { |
| ctx->transfer_map = u_transfer_map_vtbl; |
| ctx->transfer_flush_region = u_transfer_flush_region_vtbl; |
| ctx->transfer_unmap = u_transfer_unmap_vtbl; |
| ctx->transfer_inline_write = u_transfer_inline_write_vtbl; |
| } |