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-rw-r--r--src/gallium/drivers/radeonsi/si_state_draw.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/src/gallium/drivers/radeonsi/si_state_draw.c b/src/gallium/drivers/radeonsi/si_state_draw.c
index 771d206b9cc..7d418152ab1 100644
--- a/src/gallium/drivers/radeonsi/si_state_draw.c
+++ b/src/gallium/drivers/radeonsi/si_state_draw.c
@@ -216,6 +216,18 @@ static void si_emit_derived_tess_state(struct si_context *sctx,
radeon_emit(cs, tcs_out_layout | (num_tcs_output_cp << 26));
}
+static unsigned si_num_prims_for_vertices(const struct pipe_draw_info *info)
+{
+ switch (info->mode) {
+ case PIPE_PRIM_PATCHES:
+ return info->count / info->vertices_per_patch;
+ case R600_PRIM_RECTANGLE_LIST:
+ return info->count / 3;
+ default:
+ return u_prims_for_vertices(info->mode, info->count);
+ }
+}
+
static unsigned si_get_ia_multi_vgt_param(struct si_context *sctx,
const struct pipe_draw_info *info,
unsigned num_patches)
@@ -320,7 +332,7 @@ static unsigned si_get_ia_multi_vgt_param(struct si_context *sctx,
if (sctx->b.screen->info.max_se >= 2 && ia_switch_on_eoi &&
(info->indirect ||
(info->instance_count > 1 &&
- u_prims_for_vertices(info->mode, info->count) <= 1)))
+ si_num_prims_for_vertices(info) <= 1)))
sctx->b.flags |= SI_CONTEXT_VGT_FLUSH;
return S_028AA8_SWITCH_ON_EOP(ia_switch_on_eop) |