i965: fix scissor state on sandybridge

Fix incorrect scissor rect struct and missed scissor state pointer
setting for sandybridge.
(cherry picked from commit 4b6b0bf24a043035d7ada0c966e01df6327dc529)

4 files changed, 8 insertions, 5 deletions

diff --git a/src/mesa/drivers/dri/i965/brw_state.h b/src/mesa/drivers/dri/i965/brw_state.h
index c5d296b1295..3beed16945b 100644
--- a/src/mesa/drivers/dri/i965/brw_state.h
+++ b/src/mesa/drivers/dri/i965/brw_state.h
@@ -102,6 +102,7 @@ extern const struct brw_tracked_state gen6_depth_stencil_state;
 extern const struct brw_tracked_state gen6_gs_state;
 extern const struct brw_tracked_state gen6_sampler_state;
 extern const struct brw_tracked_state gen6_scissor_state;
+extern const struct brw_tracked_state gen6_scissor_state_pointers;
 extern const struct brw_tracked_state gen6_sf_state;
 extern const struct brw_tracked_state gen6_sf_vp;
 extern const struct brw_tracked_state gen6_urb;
diff --git a/src/mesa/drivers/dri/i965/brw_state_upload.c b/src/mesa/drivers/dri/i965/brw_state_upload.c
index a0c130557e3..9c4b16a9c26 100644
--- a/src/mesa/drivers/dri/i965/brw_state_upload.c
+++ b/src/mesa/drivers/dri/i965/brw_state_upload.c
@@ -145,6 +145,7 @@ const struct brw_tracked_state *gen6_atoms[] =
    &gen6_wm_state,
 
    &gen6_scissor_state,
+   &gen6_scissor_state_pointers,
 
    &brw_state_base_address,
 
diff --git a/src/mesa/drivers/dri/i965/brw_structs.h b/src/mesa/drivers/dri/i965/brw_structs.h
index 8e8f418eb78..7b919872c40 100644
--- a/src/mesa/drivers/dri/i965/brw_structs.h
+++ b/src/mesa/drivers/dri/i965/brw_structs.h
@@ -909,10 +909,12 @@ struct brw_sf_unit_state
 
 };
 
-struct gen6_scissor_state
+struct gen6_scissor_rect
 {
-   GLuint ymin, xmin;
-   GLuint ymax, xmax;
+   GLuint xmin:16;
+   GLuint ymin:16;
+   GLuint xmax:16;
+   GLuint ymax:16;
 };
 
 struct brw_gs_unit_state
diff --git a/src/mesa/drivers/dri/i965/gen6_scissor_state.c b/src/mesa/drivers/dri/i965/gen6_scissor_state.c
index 34a9dc234c2..3d483c710ce 100644
--- a/src/mesa/drivers/dri/i965/gen6_scissor_state.c
+++ b/src/mesa/drivers/dri/i965/gen6_scissor_state.c
@@ -35,7 +35,7 @@ prepare_scissor_state(struct brw_context *brw)
 {
    GLcontext *ctx = &brw->intel.ctx;
    const GLboolean render_to_fbo = (ctx->DrawBuffer->Name != 0);
-   struct gen6_scissor_state scissor;
+   struct gen6_scissor_rect scissor;
 
    /* _NEW_SCISSOR | _NEW_BUFFERS | _NEW_VIEWPORT */
 
@@ -84,7 +84,6 @@ static void upload_scissor_state_pointers(struct brw_context *brw)
    OUT_RELOC(brw->sf.state_bo, I915_GEM_DOMAIN_INSTRUCTION, 0, 0);
    ADVANCE_BATCH();
 
-   intel_batchbuffer_emit_mi_flush(intel->batch);
 }