# Build file for shaders.

# You must have Vulkan tools in your path, or patch here.

glslang_validator = glslangValidator
spirv_cross = spirv-cross
dxc = dxc

# See https://github.com/KhronosGroup/SPIRV-Cross/issues/1248 for
# why we set this.
msl_flags = --msl-decoration-binding

rule glsl
  command = $glslang_validator $flags -V -o $out $in

rule hlsl
  command = $spirv_cross --hlsl $in --output $out

rule dxil
  command = $dxc -T cs_6_0 $in -Fo $out

rule msl
  command = $spirv_cross --msl $in --output $out $msl_flags


build elements.spv: glsl elements.comp | scene.h state.h annotated.h

build binning.spv: glsl binning.comp | annotated.h state.h bins.h setup.h

build tile_alloc.spv: glsl tile_alloc.comp | annotated.h tile.h setup.h

build path_coarse.spv: glsl path_coarse.comp | annotated.h pathseg.h tile.h setup.h

build backdrop.spv: glsl backdrop.comp | annotated.h tile.h setup.h

build backdrop_lg.spv: glsl backdrop.comp | annotated.h tile.h setup.h
  flags = -DBACKDROP_DIST_FACTOR=4

build coarse.spv: glsl coarse.comp | annotated.h bins.h ptcl.h setup.h

build kernel4.spv: glsl kernel4.comp | ptcl.h setup.h

# New element pipeline follows

build gen/transform_reduce.spv: glsl transform_reduce.comp | scene.h setup.h mem.h
build gen/transform_reduce.hlsl: hlsl gen/transform_reduce.spv
build gen/transform_reduce.dxil: dxil gen/transform_reduce.hlsl
build gen/transform_reduce.msl: msl gen/transform_reduce.spv

build gen/transform_root.spv: glsl transform_scan.comp
  flags = -DROOT
build gen/transform_root.hlsl: hlsl gen/transform_root.spv
build gen/transform_root.dxil: dxil gen/transform_root.hlsl
build gen/transform_root.msl: msl gen/transform_root.spv

build gen/transform_leaf.spv: glsl transform_leaf.comp | scene.h tile.h setup.h mem.h
build gen/transform_leaf.hlsl: hlsl gen/transform_leaf.spv
build gen/transform_leaf.dxil: dxil gen/transform_leaf.hlsl
build gen/transform_leaf.msl: msl gen/transform_leaf.spv

build gen/pathtag_reduce.spv: glsl pathtag_reduce.comp | pathtag.h setup.h mem.h
build gen/pathtag_reduce.hlsl: hlsl gen/pathtag_reduce.spv
build gen/pathtag_reduce.dxil: dxil gen/pathtag_reduce.hlsl
build gen/pathtag_reduce.msl: msl gen/pathtag_reduce.spv

build gen/pathtag_root.spv: glsl pathtag_scan.comp | pathtag.h
  flags = -DROOT
build gen/pathtag_root.hlsl: hlsl gen/pathtag_root.spv
build gen/pathtag_root.dxil: dxil gen/pathtag_root.hlsl
build gen/pathtag_root.msl: msl gen/pathtag_root.spv

build gen/bbox_clear.spv: glsl bbox_clear.comp | setup.h mem.h
build gen/bbox_clear.hlsl: hlsl gen/bbox_clear.spv
build gen/bbox_clear.dxil: dxil gen/bbox_clear.hlsl
build gen/bbox_clear.msl: msl gen/bbox_clear.spv

build gen/pathseg.spv: glsl pathseg.comp | tile.h pathseg.h pathtag.h setup.h mem.h
build gen/pathseg.hlsl: hlsl gen/pathseg.spv
build gen/pathseg.dxil: dxil gen/pathseg.hlsl
build gen/pathseg.msl: msl gen/pathseg.spv