zink/spirv: implement point-sprites

This passes glsl-fs-pointcoord_gles2 from piglit.

Acked-by: Jordan Justen <[email protected]>

2 files changed, 7 insertions, 0 deletions

diff --git a/src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c b/src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c
index 56f5628aa5f..166bdf29949 100644
--- a/src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c
+++ b/src/gallium/drivers/zink/nir_to_spirv/nir_to_spirv.c
@@ -134,6 +134,10 @@ emit_input(struct ntv_context *ctx, struct nir_variable *var)
          spirv_builder_emit_builtin(&ctx->builder, var_id, SpvBuiltInFragCoord);
          break;
 
+      case VARYING_SLOT_PNTC:
+         spirv_builder_emit_builtin(&ctx->builder, var_id, SpvBuiltInPointCoord);
+         break;
+
       default:
          spirv_builder_emit_location(&ctx->builder, var_id,
                                      var->data.driver_location);
diff --git a/src/gallium/drivers/zink/zink_screen.c b/src/gallium/drivers/zink/zink_screen.c
index dd1d304b67b..5f8bbfd9f05 100644
--- a/src/gallium/drivers/zink/zink_screen.c
+++ b/src/gallium/drivers/zink/zink_screen.c
@@ -96,6 +96,9 @@ zink_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
       return screen->props.limits.maxFragmentDualSrcAttachments;
 
+   case PIPE_CAP_POINT_SPRITE:
+      return 1;
+
    case PIPE_CAP_MAX_RENDER_TARGETS:
       return screen->props.limits.maxColorAttachments;