Module: Mesa Branch: main Commit: 740a4c3448fef807029ec423ad16ba7ce657c8dd URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=740a4c3448fef807029ec423ad16ba7ce657c8dd
Author: Ganesh Belgur Ramachandra <[email protected]> Date: Tue Oct 31 06:37:33 2023 -0500 radeonsi: add comments for unpack_2x16* utility functions Reviewed-by: Pierre-Eric Pelloux-Prayer <[email protected]> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25972> --- src/gallium/drivers/radeonsi/si_shaderlib_nir.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/gallium/drivers/radeonsi/si_shaderlib_nir.c b/src/gallium/drivers/radeonsi/si_shaderlib_nir.c index a689460066a..85e08c61bd2 100644 --- a/src/gallium/drivers/radeonsi/si_shaderlib_nir.c +++ b/src/gallium/drivers/radeonsi/si_shaderlib_nir.c @@ -27,12 +27,14 @@ static nir_def *get_global_ids(nir_builder *b, unsigned num_components) return nir_iadd(b, nir_imul(b, block_ids, block_size), local_ids); } +/* unpack_2x16(src, x, y): x = src & 0xffff; y = src >> 16; */ static void unpack_2x16(nir_builder *b, nir_def *src, nir_def **x, nir_def **y) { *x = nir_iand_imm(b, src, 0xffff); *y = nir_ushr_imm(b, src, 16); } +/* unpack_2x16_signed(src, x, y): x = (int32_t)((uint16_t)src); y = src >> 16; */ static void unpack_2x16_signed(nir_builder *b, nir_def *src, nir_def **x, nir_def **y) { *x = nir_i2i32(b, nir_u2u16(b, src));
