diff options
| author | Dave Airlie <[email protected]> | 2015-01-27 13:39:51 +1000 |
|---|---|---|
| committer | Dave Airlie <[email protected]> | 2015-01-28 09:51:21 +1000 |
| commit | 349df23eb0d119e3f22ff6149824497414f07505 (patch) | |
| tree | 048b6c2ba1a2cfb032664e2ce2ee61ee6f214000 /src/gallium/drivers/r600/r600_state.c | |
| parent | cc2fc095bfae1c0494240e4f06931e2ca90e182c (diff) | |
r600g: add support for primitive id without geom shader (v2)
GLSL 1.50 specifies a fragment shader may have a primitive id
input without a geometry shader present.
On r600 hw there is a special GS scenario for this, you have
to enable GS_SCENARIO_A and pass the primitive id through
the vertex shader which operates in GS_A mode.
This is a first pass attempt at this, and passes the piglit
tests that test for this.
v1.1: clean up debug print + no need to assign
key value to setup output.
v2: add r600 support
Reviewed-by: Glenn Kennard <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
Diffstat (limited to 'src/gallium/drivers/r600/r600_state.c')
| -rw-r--r-- | src/gallium/drivers/r600/r600_state.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/gallium/drivers/r600/r600_state.c b/src/gallium/drivers/r600/r600_state.c index 9a4b9725ab8..3c2fdfaed42 100644 --- a/src/gallium/drivers/r600/r600_state.c +++ b/src/gallium/drivers/r600/r600_state.c @@ -1943,6 +1943,11 @@ static void r600_emit_shader_stages(struct r600_context *rctx, struct r600_atom uint32_t v2 = 0, primid = 0; + if (rctx->vs_shader->current->shader.vs_as_gs_a) { + v2 = S_028A40_MODE(V_028A40_GS_SCENARIO_A); + primid = 1; + } + if (state->geom_enable) { uint32_t cut_val; |