gallium: EXT_timer_query support.

Signed-off-by: Corbin Simpson <MostAwesomeDude@gmail.com>

2 files changed, 33 insertions, 4 deletions

diff --git a/src/gallium/drivers/softpipe/sp_query.c b/src/gallium/drivers/softpipe/sp_query.c
index 4ef5d9f7b1..b959af63af 100644
--- a/src/gallium/drivers/softpipe/sp_query.c
+++ b/src/gallium/drivers/softpipe/sp_query.c
@@ -30,6 +30,7 @@
  */
 
 #include "draw/draw_context.h"
+#include "os/os_time.h"
 #include "pipe/p_defines.h"
 #include "util/u_memory.h"
 #include "sp_context.h"
@@ -37,6 +38,7 @@
 #include "sp_state.h"
 
 struct softpipe_query {
+   unsigned type;
    uint64_t start;
    uint64_t end;
 };
@@ -51,8 +53,13 @@ static struct pipe_query *
 softpipe_create_query(struct pipe_context *pipe, 
 		      unsigned type)
 {
-   assert(type == PIPE_QUERY_OCCLUSION_COUNTER);
-   return (struct pipe_query *)CALLOC_STRUCT( softpipe_query );
+   struct softpipe_query* sq;
+
+   assert(type == PIPE_QUERY_OCCLUSION_COUNTER || type == PIPE_QUERY_TIME_ELAPSED);
+   sq = CALLOC_STRUCT( softpipe_query );
+   sq->type = type;
+
+   return (struct pipe_query *)sq;
 }
 
 
@@ -69,7 +76,17 @@ softpipe_begin_query(struct pipe_context *pipe, struct pipe_query *q)
    struct softpipe_context *softpipe = softpipe_context( pipe );
    struct softpipe_query *sq = softpipe_query(q);
    
-   sq->start = softpipe->occlusion_count;
+   switch (sq->type) {
+   case PIPE_QUERY_OCCLUSION_COUNTER:
+      sq->start = softpipe->occlusion_count;
+      break;
+   case PIPE_QUERY_TIME_ELAPSED:
+      sq->start = 1000*os_time_get();
+      break;
+   default:
+      assert(0);
+      break;
+   }
    softpipe->active_query_count++;
    softpipe->dirty |= SP_NEW_QUERY;
 }
@@ -82,7 +99,17 @@ softpipe_end_query(struct pipe_context *pipe, struct pipe_query *q)
    struct softpipe_query *sq = softpipe_query(q);
 
    softpipe->active_query_count--;
-   sq->end = softpipe->occlusion_count;
+   switch (sq->type) {
+   case PIPE_QUERY_OCCLUSION_COUNTER:
+      sq->end = softpipe->occlusion_count;
+      break;
+   case PIPE_QUERY_TIME_ELAPSED:
+      sq->end = 1000*os_time_get();
+      break;
+   default:
+      assert(0);
+      break;
+   }
    softpipe->dirty |= SP_NEW_QUERY;
 }
 
diff --git a/src/gallium/drivers/softpipe/sp_screen.c b/src/gallium/drivers/softpipe/sp_screen.c
index f874c3e60c..8c33efa198 100644
--- a/src/gallium/drivers/softpipe/sp_screen.c
+++ b/src/gallium/drivers/softpipe/sp_screen.c
@@ -82,6 +82,8 @@ softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
       return PIPE_MAX_COLOR_BUFS;
    case PIPE_CAP_OCCLUSION_QUERY:
       return 1;
+   case PIPE_CAP_TIMER_QUERY:
+      return 1;
    case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
       return 1;
    case PIPE_CAP_TEXTURE_MIRROR_REPEAT: