diff options
| author | Eric Anholt <eric@anholt.net> | 2010-10-18 15:43:20 -0700 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2010-10-19 10:49:20 -0700 |
| commit | f30de6964018619658439216cd8bf9371ee6256d (patch) | |
| tree | aa32889d7ef8827b804b881466a8651bb8673749 /src/mesa/drivers/dri/i965/gen6_wm_state.c | |
| parent | 2595589f1df351895bc5b1a92f19e995a19da15b (diff) | |
i965: Disable thread dispatch when the FS doesn't do any work.
This should reduce the cost of generating shadow maps, for example.
No performance difference measured in nexuiz, though it does trigger
this path.
Diffstat (limited to 'src/mesa/drivers/dri/i965/gen6_wm_state.c')
| -rw-r--r-- | src/mesa/drivers/dri/i965/gen6_wm_state.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/mesa/drivers/dri/i965/gen6_wm_state.c b/src/mesa/drivers/dri/i965/gen6_wm_state.c index 7ef99eea62..21059be965 100644 --- a/src/mesa/drivers/dri/i965/gen6_wm_state.c +++ b/src/mesa/drivers/dri/i965/gen6_wm_state.c @@ -29,6 +29,7 @@ #include "brw_state.h" #include "brw_defines.h" #include "brw_util.h" +#include "brw_wm.h" #include "program/prog_parameter.h" #include "program/prog_statevars.h" #include "intel_batchbuffer.h" @@ -123,7 +124,6 @@ upload_wm_state(struct brw_context *brw) GEN6_WM_DISPATCH_START_GRF_SHIFT_0); dw5 |= (40 - 1) << GEN6_WM_MAX_THREADS_SHIFT; - dw5 |= GEN6_WM_DISPATCH_ENABLE; /* BRW_NEW_FRAGMENT_PROGRAM */ if (fp->isGLSL) @@ -149,6 +149,11 @@ upload_wm_state(struct brw_context *brw) if (fp->program.UsesKill || ctx->Color.AlphaEnabled) dw5 |= GEN6_WM_KILL_ENABLE; + if (brw_color_buffer_write_enabled(brw) || + dw5 & (GEN6_WM_KILL_ENABLE | GEN6_WM_COMPUTED_DEPTH)) { + dw5 |= GEN6_WM_DISPATCH_ENABLE; + } + dw6 |= GEN6_WM_PERSPECTIVE_PIXEL_BARYCENTRIC; dw6 |= brw_count_bits(brw->fragment_program->Base.InputsRead) << @@ -169,7 +174,7 @@ upload_wm_state(struct brw_context *brw) const struct brw_tracked_state gen6_wm_state = { .dirty = { - .mesa = (_NEW_LINE | _NEW_POLYGONSTIPPLE | _NEW_COLOR | + .mesa = (_NEW_LINE | _NEW_POLYGONSTIPPLE | _NEW_COLOR | _NEW_BUFFERS | _NEW_PROGRAM_CONSTANTS), .brw = (BRW_NEW_CURBE_OFFSETS | BRW_NEW_FRAGMENT_PROGRAM | |