/************************************************************************** * * Copyright 2011 Marek Olšák <maraeo@gmail.com> * All Rights Reserved. * * 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, 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 AUTHORS AND/OR ITS 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. * **************************************************************************/ /* * Authors: * Marek Olšák <maraeo@gmail.com> */ #include "main/glheader.h" #include "main/macros.h" #include "pipe/p_context.h" #include "pipe/p_screen.h" #include "st_context.h" #include "st_cb_syncobj.h" struct st_sync_object { struct gl_sync_object b; struct pipe_fence_handle *fence; }; static struct gl_sync_object * st_new_sync_object(struct gl_context *ctx, GLenum type) { if (type == GL_SYNC_FENCE) return (struct gl_sync_object*)CALLOC_STRUCT(st_sync_object); else return NULL; } static void st_delete_sync_object(struct gl_context *ctx, struct gl_sync_object *obj) { struct pipe_screen *screen = st_context(ctx)->pipe->screen; struct st_sync_object *so = (struct st_sync_object*)obj; screen->fence_reference(screen, &so->fence, NULL); free(so); } static void st_fence_sync(struct gl_context *ctx, struct gl_sync_object *obj, GLenum condition, GLbitfield flags) { struct pipe_context *pipe = st_context(ctx)->pipe; struct st_sync_object *so = (struct st_sync_object*)obj; assert(condition == GL_SYNC_GPU_COMMANDS_COMPLETE && flags == 0); assert(so->fence == NULL); pipe->flush(pipe, &so->fence, 0); } static void st_check_sync(struct gl_context *ctx, struct gl_sync_object *obj) { struct pipe_screen *screen = st_context(ctx)->pipe->screen; struct st_sync_object *so = (struct st_sync_object*)obj; if (so->fence && screen->fence_signalled(screen, so->fence)) { screen->fence_reference(screen, &so->fence, NULL); so->b.StatusFlag = GL_TRUE; } } static void st_client_wait_sync(struct gl_context *ctx, struct gl_sync_object *obj, GLbitfield flags, GLuint64 timeout) { struct pipe_screen *screen = st_context(ctx)->pipe->screen; struct st_sync_object *so = (struct st_sync_object*)obj; /* We don't care about GL_SYNC_FLUSH_COMMANDS_BIT, because flush is * already called when creating a fence. */ if (so->fence && screen->fence_finish(screen, so->fence, timeout)) { screen->fence_reference(screen, &so->fence, NULL); so->b.StatusFlag = GL_TRUE; } } static void st_server_wait_sync(struct gl_context *ctx, struct gl_sync_object *obj, GLbitfield flags, GLuint64 timeout) { /* NO-OP. * Neither Gallium nor DRM interfaces support blocking on the GPU. */ } void st_init_syncobj_functions(struct dd_function_table *functions) { functions->NewSyncObject = st_new_sync_object; functions->FenceSync = st_fence_sync; functions->DeleteSyncObject = st_delete_sync_object; functions->CheckSync = st_check_sync; functions->ClientWaitSync = st_client_wait_sync; functions->ServerWaitSync = st_server_wait_sync; }