| /************************************************************************** |
| * |
| * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. |
| * 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 TUNGSTEN GRAPHICS 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. |
| * |
| **************************************************************************/ |
| |
| |
| /** |
| * glBegin/EndQuery interface to pipe |
| * |
| * \author Brian Paul |
| */ |
| |
| |
| #include "main/imports.h" |
| #include "main/context.h" |
| #include "main/image.h" |
| |
| #include "pipe/p_context.h" |
| #include "pipe/p_defines.h" |
| #include "st_context.h" |
| #include "st_cb_queryobj.h" |
| #include "st_public.h" |
| |
| |
| struct st_query_object |
| { |
| struct gl_query_object base; |
| struct pipe_query *pq; |
| }; |
| |
| |
| /** |
| * Cast wrapper |
| */ |
| static struct st_query_object * |
| st_query_object(struct gl_query_object *q) |
| { |
| return (struct st_query_object *) q; |
| } |
| |
| |
| static struct gl_query_object * |
| st_NewQueryObject(GLcontext *ctx, GLuint id) |
| { |
| struct st_query_object *stq = ST_CALLOC_STRUCT(st_query_object); |
| if (stq) { |
| stq->base.Id = id; |
| stq->base.Ready = GL_TRUE; |
| stq->pq = NULL; |
| return &stq->base; |
| } |
| return NULL; |
| } |
| |
| |
| |
| static void |
| st_DeleteQuery(GLcontext *ctx, struct gl_query_object *q) |
| { |
| struct pipe_context *pipe = ctx->st->pipe; |
| struct st_query_object *stq = st_query_object(q); |
| |
| if (stq->pq) { |
| pipe->destroy_query(pipe, stq->pq); |
| stq->pq = NULL; |
| } |
| |
| _mesa_free(stq); |
| } |
| |
| |
| static void |
| st_BeginQuery(GLcontext *ctx, struct gl_query_object *q) |
| { |
| struct pipe_context *pipe = ctx->st->pipe; |
| struct st_query_object *stq = st_query_object(q); |
| |
| switch (q->Target) { |
| case GL_SAMPLES_PASSED_ARB: |
| if (!stq->pq) |
| stq->pq = pipe->create_query( pipe, PIPE_QUERY_OCCLUSION_COUNTER ); |
| break; |
| default: |
| assert(0); |
| return; |
| } |
| |
| pipe->begin_query(pipe, stq->pq); |
| } |
| |
| |
| static void |
| st_EndQuery(GLcontext *ctx, struct gl_query_object *q) |
| { |
| struct pipe_context *pipe = ctx->st->pipe; |
| struct st_query_object *stq = st_query_object(q); |
| |
| pipe->end_query(pipe, stq->pq); |
| } |
| |
| |
| static void |
| st_WaitQuery(GLcontext *ctx, struct gl_query_object *q) |
| { |
| struct pipe_context *pipe = ctx->st->pipe; |
| struct st_query_object *stq = st_query_object(q); |
| |
| /* this function should only be called if we don't have a ready result */ |
| assert(!stq->base.Ready); |
| |
| while (!stq->base.Ready && |
| !pipe->get_query_result(pipe, |
| stq->pq, |
| TRUE, |
| &q->Result)) |
| { |
| /* nothing */ |
| } |
| |
| q->Ready = GL_TRUE; |
| } |
| |
| |
| static void |
| st_CheckQuery(GLcontext *ctx, struct gl_query_object *q) |
| { |
| struct pipe_context *pipe = ctx->st->pipe; |
| struct st_query_object *stq = st_query_object(q); |
| |
| if (!q->Ready) { |
| q->Ready = pipe->get_query_result(pipe, |
| stq->pq, |
| FALSE, |
| &q->Result); |
| } |
| } |
| |
| |
| |
| |
| void st_init_query_functions(struct dd_function_table *functions) |
| { |
| functions->NewQueryObject = st_NewQueryObject; |
| functions->DeleteQuery = st_DeleteQuery; |
| functions->BeginQuery = st_BeginQuery; |
| functions->EndQuery = st_EndQuery; |
| functions->WaitQuery = st_WaitQuery; |
| functions->CheckQuery = st_CheckQuery; |
| } |