[Mesa-dev] [PATCH 28/34] i965: Change resolve flags to enum

Ben Widawsky ben at bwidawsk.net
Tue Jan 24 06:21:51 UTC 2017


In the foreseeable future it doesn't seem to make sense to have multiple
resolve flags. What does make sense is to have the caller give an
indication to the lower layers what it things should be done for
resolve. The enum change distinguishes this binary selection.

v2: Make setting the hint more concise (Topi)

Signed-off-by: Ben Widawsky <ben at bwidawsk.net>
Acked-by: Daniel Stone <daniels at collabora.com>
Reviewed-by: Topi Pohjolainen <topi.pohjolainen at intel.com>
---
 src/mesa/drivers/dri/i965/brw_blorp.c         |  8 ++++----
 src/mesa/drivers/dri/i965/brw_context.c       | 13 +++++++------
 src/mesa/drivers/dri/i965/intel_mipmap_tree.c | 12 ++++++------
 src/mesa/drivers/dri/i965/intel_mipmap_tree.h | 13 ++++++++-----
 4 files changed, 25 insertions(+), 21 deletions(-)

diff --git a/src/mesa/drivers/dri/i965/brw_blorp.c b/src/mesa/drivers/dri/i965/brw_blorp.c
index d79f529fdc..492b04c954 100644
--- a/src/mesa/drivers/dri/i965/brw_blorp.c
+++ b/src/mesa/drivers/dri/i965/brw_blorp.c
@@ -209,12 +209,12 @@ blorp_surf_for_miptree(struct brw_context *brw,
             surf->aux_usage = ISL_AUX_USAGE_NONE;
          }
       } else if (!(safe_aux_usage & (1 << surf->aux_usage))) {
-         uint32_t flags = 0;
-         if (safe_aux_usage & (1 << ISL_AUX_USAGE_CCS_E))
-            flags |= INTEL_MIPTREE_IGNORE_CCS_E;
+         const enum intel_resolve_hint hint =
+            safe_aux_usage & (1 << ISL_AUX_USAGE_CCS_E) ?
+            INTEL_RESOLVE_HINT_IGNORE_CCS_E : 0;
 
          intel_miptree_resolve_color(brw, mt,
-                                     *level, start_layer, num_layers, flags);
+                                     *level, start_layer, num_layers, hint);
 
          assert(!intel_miptree_has_color_unresolved(mt, *level, 1,
                                                     start_layer, num_layers));
diff --git a/src/mesa/drivers/dri/i965/brw_context.c b/src/mesa/drivers/dri/i965/brw_context.c
index ca879004c9..64b55a8cb7 100644
--- a/src/mesa/drivers/dri/i965/brw_context.c
+++ b/src/mesa/drivers/dri/i965/brw_context.c
@@ -261,9 +261,10 @@ intel_update_state(struct gl_context * ctx, GLuint new_state)
       /* Sampling engine understands lossless compression and resolving
        * those surfaces should be skipped for performance reasons.
        */
-      const int flags = intel_texture_view_requires_resolve(brw, tex_obj) ?
-                           0 : INTEL_MIPTREE_IGNORE_CCS_E;
-      intel_miptree_all_slices_resolve_color(brw, tex_obj->mt, flags);
+      const enum intel_resolve_hint hint =
+         intel_texture_view_requires_resolve(brw, tex_obj) ? 0 :
+         INTEL_RESOLVE_HINT_IGNORE_CCS_E;
+      intel_miptree_all_slices_resolve_color(brw, tex_obj->mt, hint);
       brw_render_cache_set_check_flush(brw, tex_obj->mt->bo);
 
       if (tex_obj->base.StencilSampling ||
@@ -315,9 +316,9 @@ intel_update_state(struct gl_context * ctx, GLuint new_state)
             intel_renderbuffer(fb->_ColorDrawBuffers[i]);
 
          if (irb &&
-             intel_miptree_resolve_color(
-                brw, irb->mt, irb->mt_level, irb->mt_layer, irb->layer_count,
-                INTEL_MIPTREE_IGNORE_CCS_E))
+             intel_miptree_resolve_color(brw, irb->mt, irb->mt_level,
+                                         irb->mt_layer, irb->layer_count,
+                                         INTEL_RESOLVE_HINT_IGNORE_CCS_E))
             brw_render_cache_set_check_flush(brw, irb->mt->bo);
       }
    }
diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
index 095d001eae..c71a9f9e9d 100644
--- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
+++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
@@ -2320,7 +2320,7 @@ intel_miptree_used_for_rendering(const struct brw_context *brw,
 static bool
 intel_miptree_needs_color_resolve(const struct brw_context *brw,
                                   const struct intel_mipmap_tree *mt,
-                                  int flags)
+                                  enum intel_resolve_hint hint)
 {
    if (mt->aux_disable & INTEL_AUX_DISABLE_CCS)
       return false;
@@ -2332,7 +2332,7 @@ intel_miptree_needs_color_resolve(const struct brw_context *brw,
     * surfaces called "lossless compressed". These don't need to be always
     * resolved.
     */
-   if ((flags & INTEL_MIPTREE_IGNORE_CCS_E) && is_lossless_compressed)
+   if ((hint == INTEL_RESOLVE_HINT_IGNORE_CCS_E) && is_lossless_compressed)
       return false;
 
    /* Fast color clear resolves only make sense for non-MSAA buffers. */
@@ -2346,11 +2346,11 @@ bool
 intel_miptree_resolve_color(struct brw_context *brw,
                             struct intel_mipmap_tree *mt, unsigned level,
                             unsigned start_layer, unsigned num_layers,
-                            int flags)
+                            enum intel_resolve_hint hint)
 {
    intel_miptree_check_color_resolve(brw, mt, level, start_layer);
 
-   if (!intel_miptree_needs_color_resolve(brw, mt, flags))
+   if (!intel_miptree_needs_color_resolve(brw, mt, hint))
       return false;
 
    /* Arrayed fast clear is only supported for gen8+. */
@@ -2379,9 +2379,9 @@ intel_miptree_resolve_color(struct brw_context *brw,
 void
 intel_miptree_all_slices_resolve_color(struct brw_context *brw,
                                        struct intel_mipmap_tree *mt,
-                                       int flags)
+                                       enum intel_resolve_hint hint)
 {
-   if (!intel_miptree_needs_color_resolve(brw, mt, flags))
+   if (!intel_miptree_needs_color_resolve(brw, mt, hint))
       return;
       
    foreach_list_typed_safe(struct intel_resolve_map, map, link,
diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.h b/src/mesa/drivers/dri/i965/intel_mipmap_tree.h
index 1f1166a12b..d5f2689edd 100644
--- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.h
+++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.h
@@ -946,21 +946,24 @@ intel_miptree_used_for_rendering(const struct brw_context *brw,
  * Flag values telling color resolve pass which special types of buffers
  * can be ignored.
  *
- * INTEL_MIPTREE_IGNORE_CCS_E:   Lossless compressed (single-sample
- *                               compression scheme since gen9)
+ * INTEL_RESOLVE_HINT_IGNORE_CCS_E:   Lossless compressed (single-sample
+ *                                    compression scheme since gen9)
  */
-#define INTEL_MIPTREE_IGNORE_CCS_E (1 << 0)
+enum intel_resolve_hint {
+   INTEL_RESOLVE_HINT_NO_HINT = 0,
+   INTEL_RESOLVE_HINT_IGNORE_CCS_E
+};
 
 bool
 intel_miptree_resolve_color(struct brw_context *brw,
                             struct intel_mipmap_tree *mt, unsigned level,
                             unsigned start_layer, unsigned num_layers,
-                            int flags);
+                            enum intel_resolve_hint);
 
 void
 intel_miptree_all_slices_resolve_color(struct brw_context *brw,
                                        struct intel_mipmap_tree *mt,
-                                       int flags);
+                                       enum intel_resolve_hint hint);
 
 void
 intel_miptree_make_shareable(struct brw_context *brw,
-- 
2.11.0



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