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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;
struct r300_query *q;
if (query_type != PIPE_QUERY_OCCLUSION_COUNTER &&
query_type != PIPE_QUERY_OCCLUSION_PREDICATE &&
query_type != PIPE_QUERY_GPU_FINISHED) {
return NULL;
}
q = CALLOC_STRUCT(r300_query);
if (!q)
return NULL;
q->type = query_type;
if (query_type == PIPE_QUERY_GPU_FINISHED) {
return (struct pipe_query*)q;
}
if (r300screen->caps.family == CHIP_FAMILY_RV530)
q->num_pipes = r300screen->info.r300_num_z_pipes;
else
q->num_pipes = r300screen->info.r300_num_gb_pipes;
q->buf = r300->rws->buffer_create(r300->rws, 4096, 4096,
PIPE_BIND_CUSTOM, PIPE_USAGE_STAGING);
if (!q->buf) {
FREE(q);
return NULL;
}
q->cs_buf = r300->rws->buffer_get_cs_handle(q->buf);
return (struct pipe_query*)q;
}
static void r300_destroy_query(struct pipe_context* pipe,
struct pipe_query* query)
{
struct r300_query* q = r300_query(query);
pb_reference(&q->buf, NULL);
FREE(query);
}
void r300_resume_query(struct r300_context *r300,
struct r300_query *query)
{
r300->query_current = query;
r300_mark_atom_dirty(r300, &r300->query_start);
}
static void r300_begin_query(struct pipe_context* pipe,
struct pipe_query* query)
{
struct r300_context* r300 = r300_context(pipe);
struct r300_query* q = r300_query(query);
if (q->type == PIPE_QUERY_GPU_FINISHED)
return;
if (r300->query_current != NULL) {
fprintf(stderr, "r300: begin_query: "
"Some other query has already been started.\n");
assert(0);
return;
}
q->num_results = 0;
r300_resume_query(r300, q);
}
void r300_stop_query(struct r300_context *r300)
{
r300_emit_query_end(r300);
r300->query_current = NULL;
}
static void r300_end_query(struct pipe_context* pipe,
struct pipe_query* query)
{
struct r300_context* r300 = r300_context(pipe);
struct r300_query *q = r300_query(query);
if (q->type == PIPE_QUERY_GPU_FINISHED) {
pb_reference(&q->buf, NULL);
r300_flush(pipe, RADEON_FLUSH_ASYNC,
(struct pipe_fence_handle**)&q->buf);
return;
}
if (q != r300->query_current) {
fprintf(stderr, "r300: end_query: Got invalid query.\n");
assert(0);
return;
}
r300_stop_query(r300);
}
static boolean r300_get_query_result(struct pipe_context* pipe,
struct pipe_query* query,
boolean wait,
void* vresult)
{
struct r300_context* r300 = r300_context(pipe);
struct r300_query *q = r300_query(query);
unsigned i;
uint32_t temp, *map;
if (q->type == PIPE_QUERY_GPU_FINISHED) {
uint32_t *r = (uint32_t*)vresult;
if (wait) {
r300->rws->buffer_wait(q->buf, RADEON_USAGE_READWRITE);
*r = TRUE;
} else {
*r = r300->rws->buffer_is_busy(q->buf, RADEON_USAGE_READWRITE);
}
return *r;
}
map = r300->rws->buffer_map(q->buf, r300->cs,
PIPE_TRANSFER_READ |
(!wait ? PIPE_TRANSFER_DONTBLOCK : 0));
if (!map)
return FALSE;
/* Sum up the results. */
temp = 0;
for (i = 0; i < q->num_results; i++) {
/* Convert little endian values written by GPU to CPU byte order */
temp += util_le32_to_cpu(*map);
map++;
}
r300->rws->buffer_unmap(q->buf);
if (q->type == PIPE_QUERY_OCCLUSION_PREDICATE) {
temp = temp != 0;
}
*((uint64_t*)vresult) = 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 = 0;
boolean wait;
r300->skip_rendering = FALSE;
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 = result == 0;
}
}
}
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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