r600: Add shader key item to identify when the sample mask should be used
The sample mask must be applied when more then one sample is available or
multisamplig is not enabled, so add a shader key to track this.
Signed-off-by: Gert Wollny <gert.wollny@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5963>
diff --git a/src/gallium/drivers/r600/r600_shader.h b/src/gallium/drivers/r600/r600_shader.h
index 1e00a95..4e4942c 100644
--- a/src/gallium/drivers/r600/r600_shader.h
+++ b/src/gallium/drivers/r600/r600_shader.h
@@ -136,6 +136,7 @@
unsigned image_size_const_offset:5;
unsigned color_two_side:1;
unsigned alpha_to_one:1;
+ unsigned apply_sample_id_mask:1;
} ps;
struct {
unsigned prim_id_out:8;
diff --git a/src/gallium/drivers/r600/r600_state_common.c b/src/gallium/drivers/r600/r600_state_common.c
index 44c8854..89429dd 100644
--- a/src/gallium/drivers/r600/r600_state_common.c
+++ b/src/gallium/drivers/r600/r600_state_common.c
@@ -819,6 +819,7 @@
rctx->rasterizer && rctx->rasterizer->multisample_enable &&
!rctx->framebuffer.cb0_is_integer;
key->ps.nr_cbufs = rctx->framebuffer.state.nr_cbufs;
+ key->ps.apply_sample_id_mask = (rctx->ps_iter_samples > 1) || !rctx->rasterizer->multisample_enable;
/* Dual-source blending only makes sense with nr_cbufs == 1. */
if (key->ps.nr_cbufs == 1 && rctx->dual_src_blend)
key->ps.nr_cbufs = 2;
