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/**************************************************************************
*
* 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.
*
**************************************************************************/
/* Author:
* Keith Whitwell <keith@tungstengraphics.com>
*/
#include "draw/draw_context.h"
#include "pipe/p_defines.h"
#include "util/u_memory.h"
#include "lp_context.h"
#include "lp_query.h"
#include "lp_state.h"
struct llvmpipe_query {
uint64_t start;
uint64_t end;
};
static struct llvmpipe_query *llvmpipe_query( struct pipe_query *p )
{
return (struct llvmpipe_query *)p;
}
static struct pipe_query *
llvmpipe_create_query(struct pipe_context *pipe,
unsigned type)
{
assert(type == PIPE_QUERY_OCCLUSION_COUNTER);
return (struct pipe_query *)CALLOC_STRUCT( llvmpipe_query );
}
static void
llvmpipe_destroy_query(struct pipe_context *pipe, struct pipe_query *q)
{
FREE(q);
}
static void
llvmpipe_begin_query(struct pipe_context *pipe, struct pipe_query *q)
{
struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
struct llvmpipe_query *sq = llvmpipe_query(q);
sq->start = llvmpipe->occlusion_count;
llvmpipe->active_query_count++;
llvmpipe->dirty |= LP_NEW_QUERY;
}
static void
llvmpipe_end_query(struct pipe_context *pipe, struct pipe_query *q)
{
struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
struct llvmpipe_query *sq = llvmpipe_query(q);
llvmpipe->active_query_count--;
sq->end = llvmpipe->occlusion_count;
llvmpipe->dirty |= LP_NEW_QUERY;
}
static boolean
llvmpipe_get_query_result(struct pipe_context *pipe,
struct pipe_query *q,
boolean wait,
uint64_t *result )
{
struct llvmpipe_query *sq = llvmpipe_query(q);
*result = sq->end - sq->start;
return TRUE;
}
void llvmpipe_init_query_funcs(struct llvmpipe_context *llvmpipe )
{
llvmpipe->pipe.create_query = llvmpipe_create_query;
llvmpipe->pipe.destroy_query = llvmpipe_destroy_query;
llvmpipe->pipe.begin_query = llvmpipe_begin_query;
llvmpipe->pipe.end_query = llvmpipe_end_query;
llvmpipe->pipe.get_query_result = llvmpipe_get_query_result;
}
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