3 files changed, 17 insertions, 10 deletions
diff --git a/src/gallium/drivers/llvmpipe/lp_query.c b/src/gallium/drivers/llvmpipe/lp_query.c
index ff0e207a54..84c66dd36e 100644
--- a/src/gallium/drivers/llvmpipe/lp_query.c
+++ b/src/gallium/drivers/llvmpipe/lp_query.c
@@ -92,8 +92,9 @@ llvmpipe_get_query_result(struct pipe_context *pipe,
    int i;
 
    if (!pq->fence) {
-      assert(0);                /* query not in issued state */
-      return FALSE;
+      /* no fence because there was no scene, so results is zero */
+      *result = 0;
+      return TRUE;
    }
 
    if (!lp_fence_signalled(pq->fence)) {
diff --git a/src/gallium/drivers/llvmpipe/lp_screen.c b/src/gallium/drivers/llvmpipe/lp_screen.c
index c66313f0ed..96633d9365 100644
--- a/src/gallium/drivers/llvmpipe/lp_screen.c
+++ b/src/gallium/drivers/llvmpipe/lp_screen.c
@@ -412,10 +412,9 @@ llvmpipe_create_screen(struct sw_winsys *winsys)
 
    lp_jit_screen_init(screen);
 
+   screen->num_threads = util_cpu_caps.nr_cpus > 1 ? util_cpu_caps.nr_cpus : 0;
 #ifdef PIPE_OS_EMBEDDED
    screen->num_threads = 0;
-#else
-   screen->num_threads = util_cpu_caps.nr_cpus;
 #endif
    screen->num_threads = debug_get_num_option("LP_NUM_THREADS", screen->num_threads);
    screen->num_threads = MIN2(screen->num_threads, LP_MAX_THREADS);
diff --git a/src/gallium/drivers/llvmpipe/lp_setup_line.c b/src/gallium/drivers/llvmpipe/lp_setup_line.c
index 9f090d1992..829eb8a5a0 100644
--- a/src/gallium/drivers/llvmpipe/lp_setup_line.c
+++ b/src/gallium/drivers/llvmpipe/lp_setup_line.c
@@ -292,6 +292,7 @@ try_setup_line( struct lp_setup_context *setup,
    float x2diff;
    float y2diff;
    float dx, dy;
+   float area;
 
    boolean draw_start;
    boolean draw_end;
@@ -311,6 +312,18 @@ try_setup_line( struct lp_setup_context *setup,
 
    dx = v1[0][0] - v2[0][0];
    dy = v1[0][1] - v2[0][1];
+   area = (dx * dx  + dy * dy);
+   if (area == 0) {
+      LP_COUNT(nr_culled_tris);
+      return TRUE;
+   }
+
+   info.oneoverarea = 1.0f / area;
+   info.dx = dx;
+   info.dy = dy;
+   info.v1 = v1;
+   info.v2 = v2;
+
   
    /* X-MAJOR LINE */
    if (fabsf(dx) >= fabsf(dy)) {
@@ -573,12 +586,6 @@ try_setup_line( struct lp_setup_context *setup,
    line->plane[3].dcdx = y[3] - y[0];
 
 
-   info.oneoverarea = 1.0f / (dx * dx  + dy * dy);    
-   info.dx = dx;
-   info.dy = dy;
-   info.v1 = v1;
-   info.v2 = v2;
-
    /* Setup parameter interpolants:
     */
    setup_line_coefficients( setup, line, &info);