/*
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* Copyright © 2014 Broadcom
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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/**
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* Stub support for occlusion queries.
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*
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* Since we expose support for GL 2.0, we have to expose occlusion queries,
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* but the spec allows you to expose 0 query counter bits, so we just return 0
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* as the result of all our queries.
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*/
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#include "vc4_context.h"
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struct vc4_query
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{
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uint8_t pad;
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};
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static struct pipe_query *
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vc4_create_query(struct pipe_context *ctx, unsigned query_type, unsigned index)
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{
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struct vc4_query *query = calloc(1, sizeof(*query));
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/* Note that struct pipe_query isn't actually defined anywhere. */
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return (struct pipe_query *)query;
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}
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static void
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vc4_destroy_query(struct pipe_context *ctx, struct pipe_query *query)
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{
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free(query);
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}
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static boolean
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vc4_begin_query(struct pipe_context *ctx, struct pipe_query *query)
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{
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return true;
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}
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static bool
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vc4_end_query(struct pipe_context *ctx, struct pipe_query *query)
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{
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return true;
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}
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static boolean
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vc4_get_query_result(struct pipe_context *ctx, struct pipe_query *query,
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boolean wait, union pipe_query_result *vresult)
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{
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uint64_t *result = &vresult->u64;
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*result = 0;
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return true;
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}
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static void
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vc4_set_active_query_state(struct pipe_context *pipe, boolean enable)
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{
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}
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void
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vc4_query_init(struct pipe_context *pctx)
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{
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pctx->create_query = vc4_create_query;
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pctx->destroy_query = vc4_destroy_query;
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pctx->begin_query = vc4_begin_query;
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pctx->end_query = vc4_end_query;
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pctx->get_query_result = vc4_get_query_result;
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pctx->set_active_query_state = vc4_set_active_query_state;
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}
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