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/*
* Copyright 2009 Corbin Simpson <MostAwesomeDude@gmail.com>
*
* 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
* on 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
* THE AUTHOR(S) AND/OR THEIR 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. */
#include "r300_query.h"
static struct pipe_query* r300_create_query(struct pipe_context* pipe,
unsigned query_type)
{
struct r300_query* q = CALLOC_STRUCT(r300_query);
q->type = query_type;
assert(q->type == PIPE_QUERY_OCCLUSION_COUNTER);
/* XXX this is to force winsys to give us a GTT buffer */
q->buf = pipe->screen->buffer_create(pipe->screen, 64,
PIPE_BUFFER_USAGE_VERTEX, 64);
return (struct pipe_query*)q;
}
static void r300_destroy_query(struct pipe_context* pipe,
struct pipe_query* query)
{
FREE(query);
}
static void r300_begin_query(struct pipe_context* pipe,
struct pipe_query* query)
{
uint32_t* map;
struct r300_context* r300 = r300_context(pipe);
struct r300_query* q = (struct r300_query*)query;
CS_LOCALS(r300);
map = pipe_buffer_map(pipe->screen, q->buf, PIPE_BUFFER_USAGE_CPU_WRITE);
*map = ~0;
pipe_buffer_unmap(pipe->screen, q->buf);
BEGIN_CS(2);
OUT_CS_REG(R300_ZB_ZPASS_DATA, 0);
END_CS;
}
static void r300_end_query(struct pipe_context* pipe,
struct pipe_query* query)
{
struct r300_context* r300 = r300_context(pipe);
struct r300_query* q = (struct r300_query*)query;
CS_LOCALS(r300);
BEGIN_CS(4);
OUT_CS_REG_SEQ(R300_ZB_ZPASS_ADDR, 1);
OUT_CS_RELOC(q->buf, 0, 0, RADEON_GEM_DOMAIN_GTT, 0);
END_CS;
}
static boolean r300_get_query_result(struct pipe_context* pipe,
struct pipe_query* query,
boolean wait,
uint64_t* result)
{
struct r300_query* q = (struct r300_query*)query;
uint32_t* map;
uint32_t temp;
if (wait) {
/* Well, we're expected to just sit here and spin, so let's go ahead
* and flush so we can be sure that the card's spinning... */
/* XXX double-check these params */
pipe->flush(pipe, 0, NULL);
}
map = pipe_buffer_map(pipe->screen, q->buf, PIPE_BUFFER_USAGE_CPU_READ);
temp = *map;
pipe_buffer_unmap(pipe->screen, q->buf);
if (temp < 0) {
/* Our results haven't been written yet... */
return FALSE;
}
*result = temp;
return TRUE;
}
void r300_init_query_functions(struct r300_context* r300) {
r300->context.create_query = r300_create_query;
r300->context.destroy_query = r300_destroy_query;
r300->context.begin_query = r300_begin_query;
r300->context.end_query = r300_end_query;
r300->context.get_query_result = r300_get_query_result;
}
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