[PATCH vkd3d 3/6] vkd3d-shader/hlsl: Write SM4 unsigned multiplication instructions.
Zebediah Figura (she/her)
zfigura at codeweavers.com
Tue Jan 25 13:06:32 CST 2022
On 1/25/22 05:07, Giovanni Mascellani wrote:
> +static void write_sm4_binary_op_with_null(struct vkd3d_bytecode_buffer *buffer, enum vkd3d_sm4_opcode opcode,
> + const struct hlsl_ir_node *dst, unsigned dst_idx, const struct hlsl_ir_node *src1,
> + const struct hlsl_ir_node *src2)
> +{
> + struct sm4_instruction instr;
> + unsigned int writemask;
> +
> + memset(&instr, 0, sizeof(instr));
> + instr.opcode = opcode;
> +
> + instr.dsts[1 - dst_idx].reg.type = VKD3D_SM4_RT_NULL;
> + instr.dsts[1 - dst_idx].reg.dim = VKD3D_SM4_DIMENSION_NONE;
> + instr.dsts[1 - dst_idx].reg.idx_count = 0;
> + sm4_register_from_node(&instr.dsts[dst_idx].reg, &instr.dsts[dst_idx].writemask, NULL, dst);
> + instr.dst_count = 2;
> +
> + sm4_register_from_node(&instr.srcs[0].reg, &writemask, &instr.srcs[0].swizzle_type, src1);
> + instr.srcs[0].swizzle = hlsl_map_swizzle(hlsl_swizzle_from_writemask(writemask), instr.dsts[1].writemask);
> + sm4_register_from_node(&instr.srcs[1].reg, &writemask, &instr.srcs[1].swizzle_type, src2);
> + instr.srcs[1].swizzle = hlsl_map_swizzle(hlsl_swizzle_from_writemask(writemask), instr.dsts[1].writemask);
> + instr.src_count = 2;
> +
> + write_sm4_instruction(buffer, &instr);
> +}
I want to find some way to put "2 dsts" in the function name, because as
it is I can't tell just from reading.
I'd also suggest specifying both dsts as optional hlsl_ir_node pointers,
where NULL translates to SM4_RT_NULL. That would allow you to use this
helper even if both dsts are used.
More information about the wine-devel
mailing list