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| author | Kenneth Graunke <kenneth@whitecape.org> | 2013-05-20 15:25:28 -0700 |
|---|---|---|
| committer | Kenneth Graunke <kenneth@whitecape.org> | 2013-05-21 13:29:40 -0700 |
| commit | b29381567a83b47ef92e6e4e8e7c402550f467cb (patch) | |
| tree | e97e262d097573c72cb7c32b269e06fd6490d953 /src/mesa/drivers/dri/i965/gen7_sol_state.c | |
| parent | 64a87f29ce29d3c2e01b7fd79386bf6ace454f62 (diff) | |
| download | external_mesa3d-b29381567a83b47ef92e6e4e8e7c402550f467cb.zip external_mesa3d-b29381567a83b47ef92e6e4e8e7c402550f467cb.tar.gz external_mesa3d-b29381567a83b47ef92e6e4e8e7c402550f467cb.tar.bz2 | |
i965: Split BeginTransformFeedback hook into Gen6 and Gen7+ variants.
Most of the work in BeginTransformFeedback is only necessary on Gen6.
We may as well just skip it on Gen7+.
v2: Add an intel->gen == 6 assert.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
Diffstat (limited to 'src/mesa/drivers/dri/i965/gen7_sol_state.c')
| -rw-r--r-- | src/mesa/drivers/dri/i965/gen7_sol_state.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/i965/gen7_sol_state.c b/src/mesa/drivers/dri/i965/gen7_sol_state.c index 2c4b7f9..8dfac01 100644 --- a/src/mesa/drivers/dri/i965/gen7_sol_state.c +++ b/src/mesa/drivers/dri/i965/gen7_sol_state.c @@ -254,6 +254,23 @@ const struct brw_tracked_state gen7_sol_state = { }; void +gen7_begin_transform_feedback(struct gl_context *ctx, GLenum mode, + struct gl_transform_feedback_object *obj) +{ + struct brw_context *brw = brw_context(ctx); + struct intel_context *intel = &brw->intel; + + /* Reset the SOL buffer offset register. */ + for (int i = 0; i < 4; i++) { + BEGIN_BATCH(3); + OUT_BATCH(MI_LOAD_REGISTER_IMM | (3 - 2)); + OUT_BATCH(GEN7_SO_WRITE_OFFSET(i)); + OUT_BATCH(0); + ADVANCE_BATCH(); + } +} + +void gen7_end_transform_feedback(struct gl_context *ctx, struct gl_transform_feedback_object *obj) { |