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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 "util/u_memory.h"
#include "util/u_simple_list.h"
#include "r300_context.h"
#include "r300_screen.h"
#include "r300_emit.h"
#include <stdio.h>
static struct pipe_query *r300_create_query(struct pipe_context *pipe,
unsigned query_type)
{
struct r300_context *r300 = r300_context(pipe);
struct r300_screen *r300screen = r300->screen;
unsigned query_size;
struct r300_query *q, *qptr;
q = CALLOC_STRUCT(r300_query);
q->type = query_type;
assert(q->type == PIPE_QUERY_OCCLUSION_COUNTER);
if (r300screen->caps.family == CHIP_FAMILY_RV530)
query_size = r300screen->caps.num_z_pipes * sizeof(uint32_t);
else
query_size = r300screen->caps.num_frag_pipes * sizeof(uint32_t);
if (!is_empty_list(&r300->query_list)) {
qptr = last_elem(&r300->query_list);
q->offset = qptr->offset + query_size;
}
insert_at_tail(&r300->query_list, q);
/* XXX */
if (q->offset >= 4096) {
q->offset = 0;
fprintf(stderr, "r300: Rewinding OQBO...\n");
}
return (struct pipe_query*)q;
}
static void r300_destroy_query(struct pipe_context* pipe,
struct pipe_query* query)
{
struct r300_query* q = (struct r300_query*)query;
remove_from_list(q);
FREE(query);
}
static void r300_begin_query(struct pipe_context* pipe,
struct pipe_query* query)
{
uint32_t value = ~0U;
struct r300_context* r300 = r300_context(pipe);
struct r300_query* q = (struct r300_query*)query;
if (r300->query_current != NULL) {
fprintf(stderr, "r300: begin_query: "
"Some other query has already been started.\n");
assert(0);
return;
}
pipe_buffer_write(pipe,
r300->oqbo,
q->offset,
sizeof value,
&value);
q->flushed = FALSE;
r300->query_current = q;
r300->query_start.dirty = TRUE;
}
static void r300_end_query(struct pipe_context* pipe,
struct pipe_query* query)
{
struct r300_context* r300 = r300_context(pipe);
if ((struct r300_query*)query != r300->query_current) {
fprintf(stderr, "r300: end_query: Got invalid query.\n");
assert(0);
return;
}
r300_emit_query_end(r300);
r300->query_current = NULL;
}
static boolean r300_get_query_result(struct pipe_context* pipe,
struct pipe_query* query,
boolean wait,
uint64_t* result)
{
struct r300_context* r300 = r300_context(pipe);
struct r300_screen* r300screen = r300->screen;
struct r300_query *q = (struct r300_query*)query;
struct pipe_transfer *transfer;
unsigned flags = PIPE_TRANSFER_READ;
uint32_t* map;
uint32_t temp = 0;
unsigned i, num_results;
if (q->flushed == FALSE)
pipe->flush(pipe, 0, NULL);
if (!wait) {
flags |= PIPE_TRANSFER_DONTBLOCK;
}
map = pipe_buffer_map(pipe, r300->oqbo, flags, &transfer);
if (!map)
return FALSE;
map += q->offset / 4;
if (r300screen->caps.family == CHIP_FAMILY_RV530)
num_results = r300screen->caps.num_z_pipes;
else
num_results = r300screen->caps.num_frag_pipes;
for (i = 0; i < num_results; i++) {
if (*map == ~0U) {
/* Looks like our results aren't ready yet. */
if (wait) {
fprintf(stderr, "r300: Despite waiting, OQ results haven't "
"come in yet.\n");
}
temp = ~0U;
break;
}
temp += *map;
map++;
}
pipe_buffer_unmap(pipe, r300->oqbo, transfer);
if (temp == ~0U) {
/* Our results haven't been written yet... */
return FALSE;
}
*result = temp;
return TRUE;
}
static void r300_render_condition(struct pipe_context *pipe,
struct pipe_query *query,
uint mode)
{
struct r300_context *r300 = r300_context(pipe);
uint64_t result;
boolean wait;
if (query) {
wait = mode == PIPE_RENDER_COND_WAIT ||
mode == PIPE_RENDER_COND_BY_REGION_WAIT;
if (!r300_get_query_result(pipe, query, wait, &result)) {
r300->skip_rendering = FALSE;
}
r300->skip_rendering = result == 0;
} else {
r300->skip_rendering = FALSE;
}
}
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;
r300->context.render_condition = r300_render_condition;
}
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