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* Copyright 2009 Corbin Simpson <MostAwesomeDude@gmail.com>
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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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* on the rights to use, copy, modify, merge, publish, distribute, sub
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* license, and/or sell copies of the Software, and to permit persons to whom
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* the Software is furnished to do so, subject to the following conditions:
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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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* 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 NON-INFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
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* DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
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* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* USE OR OTHER DEALINGS IN THE SOFTWARE. */
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#include "util/u_memory.h"
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#include "util/u_simple_list.h"
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#include "r300_context.h"
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#include "r300_screen.h"
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#include "r300_emit.h"
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static struct pipe_query *r300_create_query(struct pipe_context *pipe,
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struct r300_context *r300 = r300_context(pipe);
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struct r300_screen *r300screen = r300->screen;
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if (query_type != PIPE_QUERY_OCCLUSION_COUNTER &&
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query_type != PIPE_QUERY_OCCLUSION_PREDICATE &&
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query_type != PIPE_QUERY_GPU_FINISHED) {
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q = CALLOC_STRUCT(r300_query);
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if (query_type == PIPE_QUERY_GPU_FINISHED) {
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return (struct pipe_query*)q;
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if (r300screen->caps.family == CHIP_FAMILY_RV530)
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q->num_pipes = r300screen->info.r300_num_z_pipes;
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q->num_pipes = r300screen->info.r300_num_gb_pipes;
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q->buf = r300->rws->buffer_create(r300->rws, 4096, 4096,
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PIPE_BIND_CUSTOM, RADEON_DOMAIN_GTT);
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q->cs_buf = r300->rws->buffer_get_cs_handle(q->buf);
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return (struct pipe_query*)q;
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static void r300_destroy_query(struct pipe_context* pipe,
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struct pipe_query* query)
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struct r300_query* q = r300_query(query);
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pb_reference(&q->buf, NULL);
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void r300_resume_query(struct r300_context *r300,
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struct r300_query *query)
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r300->query_current = query;
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r300_mark_atom_dirty(r300, &r300->query_start);
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static void r300_begin_query(struct pipe_context* pipe,
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struct pipe_query* query)
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struct r300_context* r300 = r300_context(pipe);
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struct r300_query* q = r300_query(query);
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if (q->type == PIPE_QUERY_GPU_FINISHED)
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if (r300->query_current != NULL) {
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fprintf(stderr, "r300: begin_query: "
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"Some other query has already been started.\n");
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r300_resume_query(r300, q);
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void r300_stop_query(struct r300_context *r300)
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r300_emit_query_end(r300);
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r300->query_current = NULL;
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static void r300_end_query(struct pipe_context* pipe,
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struct pipe_query* query)
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struct r300_context* r300 = r300_context(pipe);
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struct r300_query *q = r300_query(query);
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if (q->type == PIPE_QUERY_GPU_FINISHED) {
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pb_reference(&q->buf, NULL);
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r300_flush(pipe, RADEON_FLUSH_ASYNC,
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(struct pipe_fence_handle**)&q->buf);
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if (q != r300->query_current) {
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fprintf(stderr, "r300: end_query: Got invalid query.\n");
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r300_stop_query(r300);
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static boolean r300_get_query_result(struct pipe_context* pipe,
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struct pipe_query* query,
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union pipe_query_result *vresult)
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struct r300_context* r300 = r300_context(pipe);
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struct r300_query *q = r300_query(query);
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if (q->type == PIPE_QUERY_GPU_FINISHED) {
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r300->rws->buffer_wait(q->buf, RADEON_USAGE_READWRITE);
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vresult->b = !r300->rws->buffer_is_busy(q->buf, RADEON_USAGE_READWRITE);
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map = r300->rws->buffer_map(q->cs_buf, r300->cs,
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(!wait ? PIPE_TRANSFER_DONTBLOCK : 0));
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/* Sum up the results. */
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for (i = 0; i < q->num_results; i++) {
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/* Convert little endian values written by GPU to CPU byte order */
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temp += util_le32_to_cpu(*map);
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r300->rws->buffer_unmap(q->cs_buf);
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if (q->type == PIPE_QUERY_OCCLUSION_PREDICATE) {
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vresult->b = temp != 0;
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static void r300_render_condition(struct pipe_context *pipe,
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struct pipe_query *query,
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struct r300_context *r300 = r300_context(pipe);
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union pipe_query_result result;
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r300->skip_rendering = FALSE;
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wait = mode == PIPE_RENDER_COND_WAIT ||
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mode == PIPE_RENDER_COND_BY_REGION_WAIT;
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if (r300_get_query_result(pipe, query, wait, &result)) {
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if (r300_query(query)->type == PIPE_QUERY_OCCLUSION_PREDICATE) {
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r300->skip_rendering = !result.b;
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r300->skip_rendering = !result.u64;
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void r300_init_query_functions(struct r300_context* r300)
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r300->context.create_query = r300_create_query;
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r300->context.destroy_query = r300_destroy_query;
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r300->context.begin_query = r300_begin_query;
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r300->context.end_query = r300_end_query;
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r300->context.get_query_result = r300_get_query_result;
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r300->context.render_condition = r300_render_condition;