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-rw-r--r--src/mesa/drivers/dri/i965/gen7_blorp.c11
-rw-r--r--src/mesa/drivers/dri/i965/gen8_blorp.c11
2 files changed, 18 insertions, 4 deletions
diff --git a/src/mesa/drivers/dri/i965/gen7_blorp.c b/src/mesa/drivers/dri/i965/gen7_blorp.c
index e1145862b64..3a8643f9972 100644
--- a/src/mesa/drivers/dri/i965/gen7_blorp.c
+++ b/src/mesa/drivers/dri/i965/gen7_blorp.c
@@ -448,8 +448,15 @@ gen7_blorp_emit_sf_config(struct brw_context *brw,
BEGIN_BATCH(14);
OUT_BATCH(_3DSTATE_SBE << 16 | (14 - 2));
- OUT_BATCH(GEN7_SBE_SWIZZLE_ENABLE |
- num_varyings << GEN7_SBE_NUM_OUTPUTS_SHIFT |
+
+ /* There is no need for swizzling (GEN7_SBE_SWIZZLE_ENABLE). All the
+ * vertex data coming from vertex fetcher is taken as unmodified
+ * (i.e., passed through). Vertex shader state is disabled and vertex
+ * fetcher builds complete vertex entries including VUE header.
+ * This is for unknown reason really needed to be disabled when more
+ * than one vec4 worth of vertex attributes are needed.
+ */
+ OUT_BATCH(num_varyings << GEN7_SBE_NUM_OUTPUTS_SHIFT |
1 << GEN7_SBE_URB_ENTRY_READ_LENGTH_SHIFT |
BRW_SF_URB_ENTRY_READ_OFFSET <<
GEN7_SBE_URB_ENTRY_READ_OFFSET_SHIFT);
diff --git a/src/mesa/drivers/dri/i965/gen8_blorp.c b/src/mesa/drivers/dri/i965/gen8_blorp.c
index a7c6ff0011a..77ec11f2f4d 100644
--- a/src/mesa/drivers/dri/i965/gen8_blorp.c
+++ b/src/mesa/drivers/dri/i965/gen8_blorp.c
@@ -301,8 +301,15 @@ gen8_blorp_emit_sbe_state(struct brw_context *brw,
const unsigned sbe_cmd_length = brw->gen == 8 ? 4 : 6;
BEGIN_BATCH(sbe_cmd_length);
OUT_BATCH(_3DSTATE_SBE << 16 | (sbe_cmd_length - 2));
- OUT_BATCH(GEN7_SBE_SWIZZLE_ENABLE |
- num_varyings << GEN7_SBE_NUM_OUTPUTS_SHIFT |
+
+ /* There is no need for swizzling (GEN7_SBE_SWIZZLE_ENABLE). All the
+ * vertex data coming from vertex fetcher is taken as unmodified
+ * (i.e., passed through). Vertex shader state is disabled and vertex
+ * fetcher builds complete vertex entries including VUE header.
+ * This is for unknown reason really needed to be disabled when more
+ * than one vec4 worth of vertex attributes are needed.
+ */
+ OUT_BATCH(num_varyings << GEN7_SBE_NUM_OUTPUTS_SHIFT |
1 << GEN7_SBE_URB_ENTRY_READ_LENGTH_SHIFT |
BRW_SF_URB_ENTRY_READ_OFFSET <<
GEN8_SBE_URB_ENTRY_READ_OFFSET_SHIFT |