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authorZack Rusin <zackr@vmware.com>2010-06-07 12:14:56 -0400
committerZack Rusin <zackr@vmware.com>2010-06-08 06:28:11 -0400
commitbe7d8ddf0c0a293ee94db360a44561beb10e62f9 (patch)
tree1e437b13943146fbe769b45373eedd156e99d12c /src/gallium
parent34f7681669987bc804f4603463f2fa3f82bc844f (diff)
gallium: add basic support for stream output queries
Diffstat (limited to 'src/gallium')
-rw-r--r--src/gallium/drivers/softpipe/sp_context.h1
-rw-r--r--src/gallium/drivers/softpipe/sp_prim_vbuf.c5
-rw-r--r--src/gallium/drivers/softpipe/sp_query.c24
-rw-r--r--src/gallium/include/pipe/p_defines.h11
4 files changed, 38 insertions, 3 deletions
diff --git a/src/gallium/drivers/softpipe/sp_context.h b/src/gallium/drivers/softpipe/sp_context.h
index 79165fba32..e641a81d1f 100644
--- a/src/gallium/drivers/softpipe/sp_context.h
+++ b/src/gallium/drivers/softpipe/sp_context.h
@@ -86,6 +86,7 @@ struct softpipe_context {
int so_count[PIPE_MAX_SO_BUFFERS];
int num_buffers;
} so_target;
+ struct pipe_query_data_so_statistics so_stats;
unsigned num_samplers;
unsigned num_sampler_views;
diff --git a/src/gallium/drivers/softpipe/sp_prim_vbuf.c b/src/gallium/drivers/softpipe/sp_prim_vbuf.c
index 06691e8395..ddfe56f73a 100644
--- a/src/gallium/drivers/softpipe/sp_prim_vbuf.c
+++ b/src/gallium/drivers/softpipe/sp_prim_vbuf.c
@@ -549,6 +549,11 @@ sp_vbuf_so_info(struct vbuf_render *vbr, uint buffer, uint vertices)
struct softpipe_context *softpipe = cvbr->softpipe;
softpipe->so_target.so_count[buffer] += vertices;
+
+ softpipe->so_stats.num_primitives_written =
+ vertices / u_vertices_per_prim(cvbr->prim);
+ softpipe->so_stats.primitives_storage_needed =
+ vertices * 4 /*sizeof(float|int32)*/ * 4 /*x,y,z,w*/;
}
diff --git a/src/gallium/drivers/softpipe/sp_query.c b/src/gallium/drivers/softpipe/sp_query.c
index ae52c22b3e..43ff5c56af 100644
--- a/src/gallium/drivers/softpipe/sp_query.c
+++ b/src/gallium/drivers/softpipe/sp_query.c
@@ -41,6 +41,7 @@ struct softpipe_query {
unsigned type;
uint64_t start;
uint64_t end;
+ struct pipe_query_data_so_statistics so;
};
@@ -55,7 +56,9 @@ softpipe_create_query(struct pipe_context *pipe,
{
struct softpipe_query* sq;
- assert(type == PIPE_QUERY_OCCLUSION_COUNTER || type == PIPE_QUERY_TIME_ELAPSED);
+ assert(type == PIPE_QUERY_OCCLUSION_COUNTER ||
+ type == PIPE_QUERY_TIME_ELAPSED ||
+ type == PIPE_QUERY_SO_STATISTICS);
sq = CALLOC_STRUCT( softpipe_query );
sq->type = type;
@@ -83,6 +86,9 @@ softpipe_begin_query(struct pipe_context *pipe, struct pipe_query *q)
case PIPE_QUERY_TIME_ELAPSED:
sq->start = 1000*os_time_get();
break;
+ case PIPE_QUERY_SO_STATISTICS:
+ sq->so.num_primitives_written = 0;
+ sq->so.primitives_storage_needed = 0;
default:
assert(0);
break;
@@ -106,6 +112,11 @@ softpipe_end_query(struct pipe_context *pipe, struct pipe_query *q)
case PIPE_QUERY_TIME_ELAPSED:
sq->end = 1000*os_time_get();
break;
+ case PIPE_QUERY_SO_STATISTICS:
+ sq->so.num_primitives_written =
+ softpipe->so_stats.num_primitives_written;
+ sq->so.primitives_storage_needed =
+ softpipe->so_stats.primitives_storage_needed;
default:
assert(0);
break;
@@ -122,7 +133,16 @@ softpipe_get_query_result(struct pipe_context *pipe,
{
struct softpipe_query *sq = softpipe_query(q);
uint64_t *result = (uint64_t*)vresult;
- *result = sq->end - sq->start;
+
+ switch (sq->type) {
+ case PIPE_QUERY_SO_STATISTICS:
+ memcpy(vresult, &sq->so,
+ sizeof(struct pipe_query_data_so_statistics));
+ break;
+ default:
+ *result = sq->end - sq->start;
+ break;
+ }
return TRUE;
}
diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
index f47db407dc..85551cac25 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -381,7 +381,8 @@ enum pipe_transfer_usage {
#define PIPE_QUERY_PRIMITIVES_GENERATED 1
#define PIPE_QUERY_PRIMITIVES_EMITTED 2
#define PIPE_QUERY_TIME_ELAPSED 3
-#define PIPE_QUERY_TYPES 4
+#define PIPE_QUERY_SO_STATISTICS 5
+#define PIPE_QUERY_TYPES 6
/**
@@ -498,6 +499,14 @@ enum pipe_cap {
#define PIPE_REFERENCED_FOR_READ (1 << 0)
#define PIPE_REFERENCED_FOR_WRITE (1 << 1)
+/**
+ * Composite query types
+ */
+struct pipe_query_data_so_statistics
+{
+ uint64_t num_primitives_written;
+ uint64_t primitives_storage_needed;
+};
#ifdef __cplusplus
}