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/*
* Copyright © 2014 Broadcom
*
* 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 (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 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.
*/
/**
* Stub support for occlusion queries.
*
* Since we expose support for GL 2.0, we have to expose occlusion queries,
* but the spec allows you to expose 0 query counter bits, so we just return 0
* as the result of all our queries.
*/
#include "vc4_context.h"
struct vc4_query
{
uint8_t pad;
};
static struct pipe_query *
vc4_create_query(struct pipe_context *ctx, unsigned query_type, unsigned index)
{
struct vc4_query *query = calloc(1, sizeof(*query));
/* Note that struct pipe_query isn't actually defined anywhere. */
return (struct pipe_query *)query;
}
static void
vc4_destroy_query(struct pipe_context *ctx, struct pipe_query *query)
{
free(query);
}
static boolean
vc4_begin_query(struct pipe_context *ctx, struct pipe_query *query)
{
return true;
}
static bool
vc4_end_query(struct pipe_context *ctx, struct pipe_query *query)
{
return true;
}
static boolean
vc4_get_query_result(struct pipe_context *ctx, struct pipe_query *query,
boolean wait, union pipe_query_result *vresult)
{
uint64_t *result = &vresult->u64;
*result = 0;
return true;
}
static void
vc4_set_active_query_state(struct pipe_context *pipe, boolean enable)
{
}
void
vc4_query_init(struct pipe_context *pctx)
{
pctx->create_query = vc4_create_query;
pctx->destroy_query = vc4_destroy_query;
pctx->begin_query = vc4_begin_query;
pctx->end_query = vc4_end_query;
pctx->get_query_result = vc4_get_query_result;
pctx->set_active_query_state = vc4_set_active_query_state;
}
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