feat: dxbc to air transpiler

[3Shain]

.metallib serialization

• [x] vertex function
• [x] fragment function
• [x] kernel function

input/output binding

• [x] vertex function
  • [x] user defined input (InputLayout)
  • [x] user defined output
  • [x] SGV: vertex id
  • [x] SGV: instance id
  • [x] SIG: position
  • [ ] SIG: clip distance
  • [ ] SIG: cull distance
  • [ ] SIG: render target array index
  • [ ] SIG: viewport array index
• [x] fragment function
  • [x] user defined input
  • [x] user defined output (RenderTarget) No dual-source blending yet
  • [x] SGV: primitive id
  • [ ] SGV: input coverage
  • [x] SGV: isfrontface
  • [x] SGV: position
  • [x] SGV: sample index
  • [x] render target array index *
  • [x] viewport array index *
  • [x] SIV: depth (include depthGE and depthLE)
• [x] kernel function
  • [x] thread id
  • [x] thread group id
  • [x] thread id in group
  • [x] thread id in group flatten

resource binding

• [x] temp register
• [x] indexable temp register
• [x] constant buffer
• [x] srv: textures/typed
• [x] srv: raw
• [x] srv: structured
• [x] uav: textures/typed
• [x] uav: raw
• [x] uav: structured
• [ ] uav: counter
• [x] sampler
• [x] threadgroup memory (not really to bind but declare)

  dxbc instructions: integer arithmetic / bitwise

• [x] iadd
• iaddcb
• [x] imad
• [x] imax
• [x] imin
• [x] imul
• [x] ineg
• [ ] uaddc
• [x] udiv
• [x] umad
• [x] umax
• [x] umin
• [ ] usubb
• [ ] msad
• [x] and
• [x] bfi
• [x] bfrev
• [x] countbits
• [x] firstbit
• [x] ibfe
• [x] ishl
• [x] ishr
• [x] not
• [x] or
• [x] ubfe
• [x] ushr
• [x] xor

dxbc instructions: float arithmetic

• [x] add
• [x] dp2
• [x] dp3
• [x] dp4
• [x] div
• [x] exp
• [x] frc
• [x] log
• [x] mad
• [x] max
• [x] min
• [x] mul
• [x] nop
• [x] round_ne
• [x] round_ni
• [x] round_pi
• [x] ruond_z
• [x] rcp
• [x] rsq
• [x] sincos
• [x] sqrt

dxbc instructions: condition (almost done)

• [x] eq
• [x] ne
• [x] lt
• [x] ge
• [x] ieq
• [x] ine
• [x] ilt
• [x] ige
• [x] ult
• [x] uge

dxbc instructions: control flow

• [x] if
• [x] else
• [x] endif
• [x] loop
• [x] endloop
• [x] break
• [x] breakc
• [x] continue
• [x] continuec
• [x] switch
• [x] case
• [x] default
• [x] endswitch
• [x] ret
• [x] retc
• [ ] call
• [ ] callc
• [ ] label
• [ ] fcall
• [ ] "this" register

dxbc instructions: raster

• [x] discard
• [x] deriv_rtx_coarse
• [x] deriv_rty_coarse
• [x] deriv_rtx_fine
• [x] deriv_rtx_fine
• [x] lod

dxbc instructions : move

• [x] mov
• [x] movc
• [x] swap

dxbc instructions: type conversion

• [x] ftoi
• [x] ftou
• [x] itof
• [x] utof
• [x] f16tof32
• [x] f32tof16

dxbc instructions: resource access

• [x] bufinfo
• [x] gather4
• [x] gather4_c
• [x] gather4_po
• [x] gather4_po_c
• [x] ld
• [x] ld2dms
• [x] ld_uav_typed
• [x] store_uav_typed
• [x] ld_raw
• [x] store_raw
• [x] ld_structured
• [x] store_structured
• [ ] resinfo
• [x] sample
• [x] sample_b
• [x] sample_d
• [x] sample_l
• [x] sample_c
• [x] sample_c_lz
• [ ] sampleinfo
• [ ] samplepos
• [ ] eval_sample_index
• [ ] eval_centroid
• [ ] eval_snapped
• [ ] check_access_mapped

dxbc: topology (state here for reference, but we don't implement GS for now

• [ ] cut
• [ ] cut_stream
• [ ] emit
• [ ] emit_stream
• [ ] emitThenCut
• [ ] emitThenCut_stream

dxbc: uav and tgsm (atomic) operations

• [x] sync
• [x] atomic_and
• [x] atomic_or
• [x] atomic_xor
• [x] atomic_cmp_store
• [x] atomic_iadd
• [x] atomic_imax
• [x] atomic_imin
• [x] atomic_umax
• [x] atomic_umin
• [ ] imm_atomic_alloc
• [ ] imm_atomic_consume
• [x] imm_atomic_and
• [x] imm_atomic_or
• [x] imm_atomic_xor
• [x] imm_atomic_exch
• [x] imm_atomic_cmp_exch
• [x] imm_atomic_iadd
• [x] imm_atomic_imax
• [x] imm_atomic_imin
• [x] imm_atomic_umax
• [x] imm_atomic_umin

dxbc: source modifier

• [x] negative
• [x] abs

dxbc: dest modifier

• [x] saturate
• precise