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authorPaul Berry <stereotype441@gmail.com>2013-09-09 07:28:17 -0700
committerPaul Berry <stereotype441@gmail.com>2013-09-11 11:16:19 -0700
commitec5c92429044db5aa797c377fe29984538f09785 (patch)
tree5a6c85ce492855caf94569f5725cac4d35f3afa5
parent3bc642cbf69b3ba71fc636d6120fc7ac0b83aecb (diff)
i965/gen7: Extract a function for setting up a shader stage's constants.
This will allow us to reuse some code when setting up the geometry shader stage. Reviewed-by: Ian Romanick <ian.d.romanick@intel.com> Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
-rw-r--r--src/mesa/drivers/dri/i965/brw_state.h6
-rw-r--r--src/mesa/drivers/dri/i965/gen7_vs_state.c61
2 files changed, 42 insertions, 25 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_state.h b/src/mesa/drivers/dri/i965/brw_state.h
index 22e4a6128c..4c4a536c50 100644
--- a/src/mesa/drivers/dri/i965/brw_state.h
+++ b/src/mesa/drivers/dri/i965/brw_state.h
@@ -240,6 +240,12 @@ brw_vec4_upload_binding_table(struct brw_context *brw,
struct brw_stage_state *stage_state,
const struct brw_vec4_prog_data *prog_data);
+/* gen7_vs_state.c */
+void
+gen7_upload_constant_state(struct brw_context *brw,
+ const struct brw_stage_state *stage_state,
+ bool active, unsigned opcode);
+
#ifdef __cplusplus
}
#endif
diff --git a/src/mesa/drivers/dri/i965/gen7_vs_state.c b/src/mesa/drivers/dri/i965/gen7_vs_state.c
index 6e72e8f29b..4fd19139e8 100644
--- a/src/mesa/drivers/dri/i965/gen7_vs_state.c
+++ b/src/mesa/drivers/dri/i965/gen7_vs_state.c
@@ -29,6 +29,40 @@
#include "program/prog_statevars.h"
#include "intel_batchbuffer.h"
+
+void
+gen7_upload_constant_state(struct brw_context *brw,
+ const struct brw_stage_state *stage_state,
+ bool active, unsigned opcode)
+{
+ if (!active || stage_state->push_const_size == 0) {
+ /* Disable the push constant buffers. */
+ BEGIN_BATCH(7);
+ OUT_BATCH(opcode << 16 | (7 - 2));
+ OUT_BATCH(0);
+ OUT_BATCH(0);
+ OUT_BATCH(0);
+ OUT_BATCH(0);
+ OUT_BATCH(0);
+ OUT_BATCH(0);
+ ADVANCE_BATCH();
+ } else {
+ BEGIN_BATCH(7);
+ OUT_BATCH(opcode << 16 | (7 - 2));
+ OUT_BATCH(stage_state->push_const_size);
+ OUT_BATCH(0);
+ /* Pointer to the constant buffer. Covered by the set of state flags
+ * from gen6_prepare_wm_contants
+ */
+ OUT_BATCH(stage_state->push_const_offset | GEN7_MOCS_L3);
+ OUT_BATCH(0);
+ OUT_BATCH(0);
+ OUT_BATCH(0);
+ ADVANCE_BATCH();
+ }
+}
+
+
static void
upload_vs_state(struct brw_context *brw)
{
@@ -52,31 +86,8 @@ upload_vs_state(struct brw_context *brw)
OUT_BATCH(stage_state->sampler_offset);
ADVANCE_BATCH();
- if (stage_state->push_const_size == 0) {
- /* Disable the push constant buffers. */
- BEGIN_BATCH(7);
- OUT_BATCH(_3DSTATE_CONSTANT_VS << 16 | (7 - 2));
- OUT_BATCH(0);
- OUT_BATCH(0);
- OUT_BATCH(0);
- OUT_BATCH(0);
- OUT_BATCH(0);
- OUT_BATCH(0);
- ADVANCE_BATCH();
- } else {
- BEGIN_BATCH(7);
- OUT_BATCH(_3DSTATE_CONSTANT_VS << 16 | (7 - 2));
- OUT_BATCH(stage_state->push_const_size);
- OUT_BATCH(0);
- /* Pointer to the VS constant buffer. Covered by the set of
- * state flags from gen6_prepare_wm_contants
- */
- OUT_BATCH(stage_state->push_const_offset | GEN7_MOCS_L3);
- OUT_BATCH(0);
- OUT_BATCH(0);
- OUT_BATCH(0);
- ADVANCE_BATCH();
- }
+ gen7_upload_constant_state(brw, stage_state, true /* active */,
+ _3DSTATE_CONSTANT_VS);
/* Use ALT floating point mode for ARB vertex programs, because they
* require 0^0 == 1.