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-rw-r--r--src/mesa/drivers/dri/i965/brw_blorp_blit.cpp2
-rw-r--r--src/mesa/drivers/dri/i965/brw_draw.c20
-rw-r--r--src/mesa/drivers/dri/i965/intel_mipmap_tree.c40
-rw-r--r--src/mesa/drivers/dri/i965/intel_mipmap_tree.h4
4 files changed, 66 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp b/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
index dd22e6d7843..e2705402b89 100644
--- a/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
+++ b/src/mesa/drivers/dri/i965/brw_blorp_blit.cpp
@@ -1880,6 +1880,8 @@ brw_blorp_blit_miptrees(struct brw_context *brw,
intel_miptree_slice_resolve_depth(brw, src_mt, src_level, src_layer);
intel_miptree_slice_resolve_depth(brw, dst_mt, dst_level, dst_layer);
+ intel_miptree_prepare_mcs(brw, dst_mt);
+
DBG("%s from %dx %s mt %p %d %d (%f,%f) (%f,%f)"
"to %dx %s mt %p %d %d (%f,%f) (%f,%f) (flip %d,%d)\n",
__func__,
diff --git a/src/mesa/drivers/dri/i965/brw_draw.c b/src/mesa/drivers/dri/i965/brw_draw.c
index 9d034cfdb33..dcbb6819aab 100644
--- a/src/mesa/drivers/dri/i965/brw_draw.c
+++ b/src/mesa/drivers/dri/i965/brw_draw.c
@@ -391,6 +391,25 @@ brw_postdraw_set_buffers_need_resolve(struct brw_context *brw)
}
}
+static void
+brw_predraw_set_aux_buffers(struct brw_context *brw)
+{
+ if (brw->gen < 9)
+ return;
+
+ struct gl_context *ctx = &brw->ctx;
+ struct gl_framebuffer *fb = ctx->DrawBuffer;
+
+ for (unsigned i = 0; i < fb->_NumColorDrawBuffers; i++) {
+ struct intel_renderbuffer *irb =
+ intel_renderbuffer(fb->_ColorDrawBuffers[i]);
+
+ if (irb) {
+ intel_miptree_prepare_mcs(brw, irb->mt);
+ }
+ }
+}
+
/* May fail if out of video memory for texture or vbo upload, or on
* fallback conditions.
*/
@@ -438,6 +457,7 @@ brw_try_draw_prims(struct gl_context *ctx,
_mesa_fls(ctx->VertexProgram._Current->Base.SamplersUsed);
intel_prepare_render(brw);
+ brw_predraw_set_aux_buffers(brw);
/* This workaround has to happen outside of brw_upload_render_state()
* because it may flush the batchbuffer for a blit, affecting the state
diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
index 8f6dc2400d8..0b432eca7fd 100644
--- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
+++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
@@ -1622,6 +1622,46 @@ intel_miptree_alloc_non_msrt_mcs(struct brw_context *brw,
return mt->mcs_mt;
}
+void
+intel_miptree_prepare_mcs(struct brw_context *brw,
+ struct intel_mipmap_tree *mt)
+{
+ if (mt->mcs_mt)
+ return;
+
+ if (brw->gen < 9)
+ return;
+
+ /* Single sample compression is represented re-using msaa compression
+ * layout type: "Compressed Multisampled Surfaces".
+ */
+ if (mt->msaa_layout != INTEL_MSAA_LAYOUT_CMS || mt->num_samples > 1)
+ return;
+
+ /* Clients are not currently capable of consuming compressed
+ * single-sampled buffers.
+ */
+ if (mt->is_scanout)
+ return;
+
+ assert(intel_tiling_supports_non_msrt_mcs(brw, mt->tiling) ||
+ intel_miptree_supports_lossless_compressed(brw, mt));
+
+ /* Consider if lossless compression is supported but the needed
+ * auxiliary buffer doesn't exist yet.
+ *
+ * Failing to allocate the auxiliary buffer means running out of
+ * memory. The pointer to the aux miptree is left NULL which should
+ * signal non-compressed behavior.
+ */
+ if (!intel_miptree_alloc_non_msrt_mcs(brw, mt)) {
+ _mesa_warning(NULL,
+ "Failed to allocated aux buffer for lossless"
+ " compressed %p %u:%u %s\n",
+ mt, mt->logical_width0, mt->logical_height0,
+ _mesa_get_format_name(mt->format));
+ }
+}
/**
* Helper for intel_miptree_alloc_hiz() that sets
diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.h b/src/mesa/drivers/dri/i965/intel_mipmap_tree.h
index 7f6e771b41d..4fb5b6946e2 100644
--- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.h
+++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.h
@@ -693,6 +693,10 @@ bool
intel_miptree_alloc_non_msrt_mcs(struct brw_context *brw,
struct intel_mipmap_tree *mt);
+void
+intel_miptree_prepare_mcs(struct brw_context *brw,
+ struct intel_mipmap_tree *mt);
+
enum {
MIPTREE_LAYOUT_ACCELERATED_UPLOAD = 1 << 0,
MIPTREE_LAYOUT_FORCE_ALL_SLICE_AT_LOD = 1 << 1,