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);
}
static boolean r300_get_query_result(struct pipe_context* pipe,
struct pipe_query* query,
boolean wait,
union pipe_query_result *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) {
if (wait) {
r300->rws->buffer_wait(q->buf, RADEON_USAGE_READWRITE);
vresult->b = TRUE;
} else {
vresult->b = !r300->rws->buffer_is_busy(q->buf, RADEON_USAGE_READWRITE);
}
return vresult->b;
}
map = r300->rws->buffer_map(q->cs_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->cs_buf);
if (q->type == PIPE_QUERY_OCCLUSION_PREDICATE) {
vresult->b = temp != 0;
} else {
vresult->u64 = temp;
}
return TRUE;
}
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);
}
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 void r300_render_condition(struct pipe_context *pipe,
struct pipe_query *query,
uint mode)
{
struct r300_context *r300 = r300_context(pipe);
union pipe_query_result result;
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)) {
if (r300_query(query)->type == PIPE_QUERY_OCCLUSION_PREDICATE) {
r300->skip_rendering = !result.b;
} else {
r300->skip_rendering = !result.u64;
}
}
}
}
