diff options
| author | Dave Airlie <[email protected]> | 2017-12-29 03:14:21 +0000 |
|---|---|---|
| committer | Dave Airlie <[email protected]> | 2018-01-10 00:54:32 +0000 |
| commit | e836fb2002e24ee1092a02d054091588bb5deb14 (patch) | |
| tree | e028660d771959c361b80bf3527f6bc3814103d2 | |
| parent | adfb9c5c7bf062fd56273b4538fef353ddd6f43d (diff) | |
r600/shader: only read back the necessary tess factor components.
This just reduces the lds reads for the the tess factor emission.
Signed-off-by: Dave Airlie <[email protected]>
| -rw-r--r-- | src/gallium/drivers/r600/r600_shader.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c index e28882b2e5d..f6ff2055ee3 100644 --- a/src/gallium/drivers/r600/r600_shader.c +++ b/src/gallium/drivers/r600/r600_shader.c @@ -2851,7 +2851,7 @@ static int r600_store_tcs_output(struct r600_shader_ctx *ctx) } static int r600_tess_factor_read(struct r600_shader_ctx *ctx, - int output_idx) + int output_idx, int nc) { int param; unsigned temp_reg = r600_get_temp(ctx); @@ -2871,7 +2871,7 @@ static int r600_tess_factor_read(struct r600_shader_ctx *ctx, if (r) return r; - do_lds_fetch_values(ctx, temp_reg, dreg, 0xf); + do_lds_fetch_values(ctx, temp_reg, dreg, ((1u << nc) - 1)); return 0; } @@ -2941,13 +2941,13 @@ static int r600_emit_tess_factor(struct r600_shader_ctx *ctx) return -1; if (tessouter_idx != -1) { - r = r600_tess_factor_read(ctx, tessouter_idx); + r = r600_tess_factor_read(ctx, tessouter_idx, outer_comps); if (r) return r; } if (tessinner_idx != -1) { - r = r600_tess_factor_read(ctx, tessinner_idx); + r = r600_tess_factor_read(ctx, tessinner_idx, inner_comps); if (r) return r; } |