diff options
Diffstat (limited to 'src/glsl/nir/nir_intrinsics.h')
| -rw-r--r-- | src/glsl/nir/nir_intrinsics.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/src/glsl/nir/nir_intrinsics.h b/src/glsl/nir/nir_intrinsics.h index 70cae4256a3..b21460da5c0 100644 --- a/src/glsl/nir/nir_intrinsics.h +++ b/src/glsl/nir/nir_intrinsics.h @@ -79,9 +79,30 @@ BARRIER(memory_barrier) /** A conditional discard, with a single boolean source. */ INTRINSIC(discard_if, 1, ARR(1), false, 0, 0, 0, 0) +/** + * Basic Geometry Shader intrinsics. + * + * emit_vertex implements GLSL's EmitStreamVertex() built-in. It takes a single + * index, which is the stream ID to write to. + * + * end_primitive implements GLSL's EndPrimitive() built-in. + */ INTRINSIC(emit_vertex, 0, ARR(), false, 0, 0, 1, 0) INTRINSIC(end_primitive, 0, ARR(), false, 0, 0, 1, 0) +/** + * Geometry Shader intrinsics with a vertex count. + * + * Alternatively, drivers may implement these intrinsics, and use + * nir_lower_gs_intrinsics() to convert from the basic intrinsics. + * + * These maintain a count of the number of vertices emitted, as an additional + * unsigned integer source. + */ +INTRINSIC(emit_vertex_with_counter, 1, ARR(1), false, 0, 0, 1, 0) +INTRINSIC(end_primitive_with_counter, 1, ARR(1), false, 0, 0, 1, 0) +INTRINSIC(set_vertex_count, 1, ARR(1), false, 0, 0, 0, 0) + /* * Atomic counters * |