[Mesa-dev] [PATCH 10/22] intel/blorp: Add an entrypoint for clearing depth and stencil

[Jason Ekstrand]

Signed-off-by: Jason Ekstrand <jason at jlekstrand.net>
---
 src/intel/blorp/blorp.h       | 10 ++++++++
 src/intel/blorp/blorp_clear.c | 58 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 68 insertions(+)

diff --git a/src/intel/blorp/blorp.h b/src/intel/blorp/blorp.h
index 480f1bb..263d194 100644
--- a/src/intel/blorp/blorp.h
+++ b/src/intel/blorp/blorp.h
@@ -134,6 +134,16 @@ blorp_clear(struct blorp_batch *batch,
             const bool color_write_disable[4]);
 
 void
+blorp_clear_depth_stencil(struct blorp_batch *batch,
+                          const struct blorp_surf *depth,
+                          const struct blorp_surf *stencil,
+                          uint32_t level, uint32_t start_layer,
+                          uint32_t num_layers,
+                          uint32_t x0, uint32_t y0, uint32_t x1, uint32_t y1,
+                          bool clear_depth, float depth_value,
+                          bool clear_stencil, uint8_t stencil_value);
+
+void
 blorp_ccs_resolve(struct blorp_batch *batch,
                   struct blorp_surf *surf, enum isl_format format);
 
diff --git a/src/intel/blorp/blorp_clear.c b/src/intel/blorp/blorp_clear.c
index a8f29fd..1d6bf1c 100644
--- a/src/intel/blorp/blorp_clear.c
+++ b/src/intel/blorp/blorp_clear.c
@@ -306,6 +306,64 @@ blorp_clear(struct blorp_batch *batch,
 }
 
 void
+blorp_clear_depth_stencil(struct blorp_batch *batch,
+                          const struct blorp_surf *depth,
+                          const struct blorp_surf *stencil,
+                          uint32_t level, uint32_t start_layer,
+                          uint32_t num_layers,
+                          uint32_t x0, uint32_t y0, uint32_t x1, uint32_t y1,
+                          bool clear_depth, float depth_value,
+                          bool clear_stencil, uint8_t stencil_value)
+{
+   struct blorp_params params;
+   blorp_params_init(&params);
+
+   params.x0 = x0;
+   params.y0 = y0;
+   params.x1 = x1;
+   params.y1 = y1;
+
+   while (num_layers > 0) {
+      params.num_layers = num_layers;
+
+      if (clear_stencil) {
+         brw_blorp_surface_info_init(batch->blorp, &params.stencil, stencil,
+                                     level, start_layer,
+                                     ISL_FORMAT_UNSUPPORTED, true);
+         params.stencil_ref = stencil_value;
+
+         params.dst.surf.samples = params.stencil.surf.samples;
+         params.dst.surf.logical_level0_px =
+            params.stencil.surf.logical_level0_px;
+
+         if (params.stencil.view.array_len < params.num_layers)
+            params.num_layers = params.stencil.view.array_len;
+      }
+
+      if (clear_depth) {
+         brw_blorp_surface_info_init(batch->blorp, &params.depth, depth,
+                                     level, start_layer,
+                                     ISL_FORMAT_UNSUPPORTED, true);
+         params.z = depth_value;
+         params.depth_format =
+            isl_format_get_depth_format(depth->surf->format, false);
+
+         params.dst.surf.samples = params.depth.surf.samples;
+         params.dst.surf.logical_level0_px =
+            params.depth.surf.logical_level0_px;
+
+         if (params.depth.view.array_len < params.num_layers)
+            params.num_layers = params.depth.view.array_len;
+      }
+
+      batch->blorp->exec(batch, &params);
+
+      start_layer += params.num_layers;
+      num_layers -= params.num_layers;
+   }
+}
+
+void
 blorp_ccs_resolve(struct blorp_batch *batch,
                   struct blorp_surf *surf, enum isl_format format)
 {
-- 
2.5.0.400.gff86faf