import Mesa 11.0.6

1 files changed, 213 insertions, 0 deletions

diff --git a/lib/mesa/src/gallium/drivers/r300/r300_query.c b/lib/mesa/src/gallium/drivers/r300/r300_query.c
new file mode 100644
index 000000000..4dd8156f6
--- /dev/null
+++ b/lib/mesa/src/gallium/drivers/r300/r300_query.c
@@ -0,0 +1,213 @@
+/*
+ * 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/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,
+                                            unsigned index)
+{
+    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_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, TRUE,
+                                      RADEON_DOMAIN_GTT, 0);
+    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 boolean 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 true;
+
+    if (r300->query_current != NULL) {
+        fprintf(stderr, "r300: begin_query: "
+                "Some other query has already been started.\n");
+        assert(0);
+        return false;
+    }
+
+    q->num_results = 0;
+    r300_resume_query(r300, q);
+    return true;
+}
+
+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,
+                                     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, PIPE_TIMEOUT_INFINITE,
+                                   RADEON_USAGE_READWRITE);
+            vresult->b = TRUE;
+        } else {
+            vresult->b = r300->rws->buffer_wait(q->buf, 0, 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++;
+    }
+
+    if (q->type == PIPE_QUERY_OCCLUSION_PREDICATE) {
+        vresult->b = temp != 0;
+    } else {
+        vresult->u64 = temp;
+    }
+    return TRUE;
+}
+
+static void r300_render_condition(struct pipe_context *pipe,
+                                  struct pipe_query *query,
+                                  boolean condition,
+                                  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 = condition == result.b;
+            } else {
+                r300->skip_rendering = condition == !!result.u64;
+            }
+        }
+    }
+}
+
+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;
+}