From: Conor McCarthy cmccarthy@codeweavers.com
A zero mask is still emitted for some scalar registers. This has no effect on current tests, but keeping the correction is probably a good idea. --- libs/vkd3d-shader/tpf.c | 25 +++++++++++++++++++++++-- 1 file changed, 23 insertions(+), 2 deletions(-)
diff --git a/libs/vkd3d-shader/tpf.c b/libs/vkd3d-shader/tpf.c index d187cb82..7422ec65 100644 --- a/libs/vkd3d-shader/tpf.c +++ b/libs/vkd3d-shader/tpf.c @@ -2041,6 +2041,7 @@ static bool shader_sm4_read_dst_param(struct vkd3d_shader_sm4_parser *priv, cons const uint32_t *end, enum vkd3d_data_type data_type, struct vkd3d_shader_dst_param *dst_param) { enum vkd3d_shader_src_modifier modifier; + unsigned int dimension; DWORD token;
if (*ptr >= end) @@ -2062,10 +2063,30 @@ static bool shader_sm4_read_dst_param(struct vkd3d_shader_sm4_parser *priv, cons return false; }
- dst_param->write_mask = (token & VKD3D_SM4_WRITEMASK_MASK) >> VKD3D_SM4_WRITEMASK_SHIFT; + switch ((dimension = (token & VKD3D_SM4_DIMENSION_MASK) >> VKD3D_SM4_DIMENSION_SHIFT)) + { + case VKD3D_SM4_DIMENSION_NONE: + dst_param->write_mask = 0; + break; + + case VKD3D_SM4_DIMENSION_SCALAR: + dst_param->write_mask = VKD3DSP_WRITEMASK_0; + break; + + case VKD3D_SM4_DIMENSION_VEC4: + dst_param->write_mask = (token & VKD3D_SM4_WRITEMASK_MASK) >> VKD3D_SM4_WRITEMASK_SHIFT; + break; + + default: + FIXME("Unhandled dimension %#x.\n", dimension); + vkd3d_shader_parser_error(&priv->p, VKD3D_SHADER_ERROR_TPF_INVALID_REGISTER_DIMENSION, + "Destination register dimension %#x is invalid.", dimension); + break; + } + if (data_type == VKD3D_DATA_DOUBLE) dst_param->write_mask = vkd3d_write_mask_64_from_32(dst_param->write_mask); - /* Scalar registers are declared with no write mask in shader bytecode. */ + /* Some scalar registers are declared with no write mask in shader bytecode. */ if (!dst_param->write_mask && shader_sm4_is_scalar_register(&dst_param->reg)) dst_param->write_mask = VKD3DSP_WRITEMASK_0; dst_param->modifiers = 0;