[Mesa-dev] [v4 09/11] i965: Set render state for lossless compressed

[Topi Pohjolainen]

v2: Add support for blorp and removed the support for meta

Signed-off-by: Topi Pohjolainen <topi.pohjolainen at intel.com>
---
 src/mesa/drivers/dri/i965/brw_blorp_blit.cpp  | 3 +++
 src/mesa/drivers/dri/i965/brw_blorp_clear.cpp | 6 ++++++
 src/mesa/drivers/dri/i965/brw_draw.c          | 7 ++++++-
 3 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp b/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
index 74fe3c0..84f4ca5 100644
--- a/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
+++ b/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
@@ -107,6 +107,9 @@ brw_blorp_blit_miptrees(struct brw_context *brw,
    brw_blorp_exec(brw, &params);
 
    intel_miptree_slice_set_needs_hiz_resolve(dst_mt, dst_level, dst_layer);
+
+   if (intel_miptree_is_lossless_compressed(brw, dst_mt))
+      dst_mt->fast_clear_state = INTEL_FAST_CLEAR_STATE_UNRESOLVED;
 }
 
 static int
diff --git a/src/mesa/drivers/dri/i965/brw_blorp_clear.cpp b/src/mesa/drivers/dri/i965/brw_blorp_clear.cpp
index b1da935..bf8d231 100644
--- a/src/mesa/drivers/dri/i965/brw_blorp_clear.cpp
+++ b/src/mesa/drivers/dri/i965/brw_blorp_clear.cpp
@@ -398,6 +398,12 @@ do_single_blorp_clear(struct brw_context *brw, struct gl_framebuffer *fb,
        * redundant clears.
        */
       irb->mt->fast_clear_state = INTEL_FAST_CLEAR_STATE_CLEAR;
+   } else if (intel_miptree_is_lossless_compressed(brw, irb->mt)) {
+      /* Compressed buffers can be cleared also using normal rep-clear. In
+       * such case they bahave such as if they were drawn using normal 3D
+       * render pipeline, and we simply mark the mcs as dirty.
+       */
+      irb->mt->fast_clear_state = INTEL_FAST_CLEAR_STATE_UNRESOLVED;
    }
 
    return true;
diff --git a/src/mesa/drivers/dri/i965/brw_draw.c b/src/mesa/drivers/dri/i965/brw_draw.c
index 4fa0f4e..b8e3a68 100644
--- a/src/mesa/drivers/dri/i965/brw_draw.c
+++ b/src/mesa/drivers/dri/i965/brw_draw.c
@@ -366,8 +366,13 @@ brw_postdraw_set_buffers_need_resolve(struct brw_context *brw)
       struct intel_renderbuffer *irb =
          intel_renderbuffer(fb->_ColorDrawBuffers[i]);
 
-      if (irb)
+      if (irb) {
          brw_render_cache_set_add_bo(brw, irb->mt->bo);
+
+         if (intel_miptree_is_lossless_compressed(brw, irb->mt)) {
+            irb->mt->fast_clear_state = INTEL_FAST_CLEAR_STATE_UNRESOLVED;
+         }
+      }
    }
 }
 
-- 
2.5.5