Mesa (master): i965/wm/gen6: Add option for disabling statistics collection

[Topi Pohjolainen]

Module: Mesa
Branch: master
Commit: b1119ce838462ff533512188c969fc28ab6a89a9
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=b1119ce838462ff533512188c969fc28ab6a89a9

Author: Topi Pohjolainen <topi.pohjolainen at intel.com>
Date:   Thu May  7 16:07:15 2015 +0300

i965/wm/gen6: Add option for disabling statistics collection

Normally this is always needed but for internal blits and clears
we need to be able to disable it.

Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>
Signed-off-by: Topi Pohjolainen <topi.pohjolainen at intel.com>

---

 src/mesa/drivers/dri/i965/brw_state.h     |    3 ++-
 src/mesa/drivers/dri/i965/gen6_wm_state.c |   14 +++++++++++---
 2 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_state.h b/src/mesa/drivers/dri/i965/brw_state.h
index 18449c4..26fdae6 100644
--- a/src/mesa/drivers/dri/i965/brw_state.h
+++ b/src/mesa/drivers/dri/i965/brw_state.h
@@ -339,7 +339,8 @@ gen6_upload_wm_state(struct brw_context *brw,
                      bool multisampled_fbo, int min_inv_per_frag,
                      bool dual_source_blend_enable, bool kill_enable,
                      bool color_buffer_write_enable, bool msaa_enabled,
-                     bool line_stipple_enable, bool polygon_stipple_enable);
+                     bool line_stipple_enable, bool polygon_stipple_enable,
+                     bool statistic_enable);
 
 /* gen6_sf_state.c */
 void
diff --git a/src/mesa/drivers/dri/i965/gen6_wm_state.c b/src/mesa/drivers/dri/i965/gen6_wm_state.c
index e5b0f5a..7081eb7 100644
--- a/src/mesa/drivers/dri/i965/gen6_wm_state.c
+++ b/src/mesa/drivers/dri/i965/gen6_wm_state.c
@@ -73,7 +73,8 @@ gen6_upload_wm_state(struct brw_context *brw,
                      bool multisampled_fbo, int min_inv_per_frag,
                      bool dual_source_blend_enable, bool kill_enable,
                      bool color_buffer_write_enable, bool msaa_enabled,
-                     bool line_stipple_enable, bool polygon_stipple_enable)
+                     bool line_stipple_enable, bool polygon_stipple_enable,
+                     bool statistic_enable)
 {
    uint32_t dw2, dw4, dw5, dw6, ksp0, ksp2;
 
@@ -109,7 +110,10 @@ gen6_upload_wm_state(struct brw_context *brw,
    }
 
    dw2 = dw4 = dw5 = dw6 = ksp2 = 0;
-   dw4 |= GEN6_WM_STATISTICS_ENABLE;
+
+   if (statistic_enable)
+      dw4 |= GEN6_WM_STATISTICS_ENABLE;
+
    dw5 |= GEN6_WM_LINE_AA_WIDTH_1_0;
    dw5 |= GEN6_WM_LINE_END_CAP_AA_WIDTH_0_5;
 
@@ -300,6 +304,9 @@ upload_wm_state(struct brw_context *brw)
                             ctx->Multisample.SampleAlphaToCoverage ||
                             prog_data->uses_omask;
 
+   /* Rendering against the gl-context is always taken into account. */
+   const bool statistic_enable = true;
+
    /* _NEW_LINE | _NEW_POLYGON | _NEW_BUFFERS | _NEW_COLOR |
     * _NEW_MULTISAMPLE
     */
@@ -308,7 +315,8 @@ upload_wm_state(struct brw_context *brw)
                         dual_src_blend_enable, kill_enable,
                         brw_color_buffer_write_enabled(brw),
                         ctx->Multisample.Enabled,
-                        ctx->Line.StippleFlag, ctx->Polygon.StippleFlag);
+                        ctx->Line.StippleFlag, ctx->Polygon.StippleFlag,
+                        statistic_enable);
 }
 
 const struct brw_tracked_state gen6_wm_state = {