mirror of
https://github.com/italicsjenga/vello.git
synced 2024-10-17 23:11:30 +11:00
3b67a4e7c1
This PR reworks the clip implementation. The highlight is that clip bounding box accounting is now done on GPU rather than CPU. The clip mask is also rasterized on EndClip rather than BeginClip, which decreases memory traffic needed for the clip stack. This is a pretty good working state, but not all cleanup has been applied. An important next step is to remove the CPU clip accounting (it is computed and encoded, but that result is not used). Another step is to remove the Annotated structure entirely. Fixes #88. Also relevant to #119
692 lines
19 KiB
HLSL
Generated
692 lines
19 KiB
HLSL
Generated
struct Alloc
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{
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uint offset;
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};
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struct CmdStrokeRef
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{
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uint offset;
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};
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struct CmdStroke
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{
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uint tile_ref;
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float half_width;
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};
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struct CmdFillRef
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{
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uint offset;
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};
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struct CmdFill
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{
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uint tile_ref;
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int backdrop;
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};
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struct CmdColorRef
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{
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uint offset;
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};
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struct CmdColor
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{
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uint rgba_color;
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};
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struct CmdLinGradRef
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{
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uint offset;
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};
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struct CmdLinGrad
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{
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uint index;
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float line_x;
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float line_y;
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float line_c;
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};
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struct CmdImageRef
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{
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uint offset;
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};
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struct CmdImage
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{
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uint index;
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int2 offset;
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};
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struct CmdAlphaRef
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{
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uint offset;
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};
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struct CmdAlpha
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{
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float alpha;
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};
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struct CmdJumpRef
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{
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uint offset;
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};
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struct CmdJump
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{
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uint new_ref;
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};
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struct CmdRef
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{
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uint offset;
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};
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struct CmdTag
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{
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uint tag;
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uint flags;
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};
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struct TileSegRef
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{
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uint offset;
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};
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struct TileSeg
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{
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float2 origin;
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float2 _vector;
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float y_edge;
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TileSegRef next;
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};
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struct Config
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{
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uint n_elements;
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uint n_pathseg;
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uint width_in_tiles;
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uint height_in_tiles;
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Alloc tile_alloc;
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Alloc bin_alloc;
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Alloc ptcl_alloc;
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Alloc pathseg_alloc;
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Alloc anno_alloc;
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Alloc trans_alloc;
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Alloc bbox_alloc;
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Alloc drawmonoid_alloc;
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Alloc clip_alloc;
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Alloc clip_bic_alloc;
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Alloc clip_stack_alloc;
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Alloc clip_bbox_alloc;
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uint n_trans;
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uint n_path;
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uint n_clip;
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uint trans_offset;
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uint linewidth_offset;
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uint pathtag_offset;
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uint pathseg_offset;
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};
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static const uint3 gl_WorkGroupSize = uint3(8u, 4u, 1u);
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RWByteAddressBuffer _202 : register(u0, space0);
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ByteAddressBuffer _723 : register(t1, space0);
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RWTexture2D<unorm float4> image_atlas : register(u3, space0);
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RWTexture2D<unorm float4> gradients : register(u4, space0);
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RWTexture2D<unorm float> image : register(u2, space0);
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static uint3 gl_WorkGroupID;
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static uint3 gl_LocalInvocationID;
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struct SPIRV_Cross_Input
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{
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uint3 gl_WorkGroupID : SV_GroupID;
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uint3 gl_LocalInvocationID : SV_GroupThreadID;
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};
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uint spvPackUnorm4x8(float4 value)
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{
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uint4 Packed = uint4(round(saturate(value) * 255.0));
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return Packed.x | (Packed.y << 8) | (Packed.z << 16) | (Packed.w << 24);
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}
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float4 spvUnpackUnorm4x8(uint value)
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{
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uint4 Packed = uint4(value & 0xff, (value >> 8) & 0xff, (value >> 16) & 0xff, value >> 24);
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return float4(Packed) / 255.0;
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}
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Alloc slice_mem(Alloc a, uint offset, uint size)
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{
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Alloc _215 = { a.offset + offset };
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return _215;
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}
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bool touch_mem(Alloc alloc, uint offset)
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{
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return true;
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}
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uint read_mem(Alloc alloc, uint offset)
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{
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Alloc param = alloc;
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uint param_1 = offset;
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if (!touch_mem(param, param_1))
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{
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return 0u;
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}
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uint v = _202.Load(offset * 4 + 8);
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return v;
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}
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CmdTag Cmd_tag(Alloc a, CmdRef ref)
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{
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Alloc param = a;
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uint param_1 = ref.offset >> uint(2);
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uint tag_and_flags = read_mem(param, param_1);
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CmdTag _432 = { tag_and_flags & 65535u, tag_and_flags >> uint(16) };
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return _432;
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}
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CmdStroke CmdStroke_read(Alloc a, CmdStrokeRef ref)
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{
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uint ix = ref.offset >> uint(2);
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Alloc param = a;
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uint param_1 = ix + 0u;
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uint raw0 = read_mem(param, param_1);
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Alloc param_2 = a;
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uint param_3 = ix + 1u;
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uint raw1 = read_mem(param_2, param_3);
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CmdStroke s;
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s.tile_ref = raw0;
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s.half_width = asfloat(raw1);
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return s;
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}
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CmdStroke Cmd_Stroke_read(Alloc a, CmdRef ref)
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{
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CmdStrokeRef _449 = { ref.offset + 4u };
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Alloc param = a;
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CmdStrokeRef param_1 = _449;
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return CmdStroke_read(param, param_1);
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}
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Alloc new_alloc(uint offset, uint size, bool mem_ok)
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{
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Alloc a;
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a.offset = offset;
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return a;
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}
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TileSeg TileSeg_read(Alloc a, TileSegRef ref)
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{
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uint ix = ref.offset >> uint(2);
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Alloc param = a;
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uint param_1 = ix + 0u;
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uint raw0 = read_mem(param, param_1);
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Alloc param_2 = a;
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uint param_3 = ix + 1u;
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uint raw1 = read_mem(param_2, param_3);
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Alloc param_4 = a;
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uint param_5 = ix + 2u;
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uint raw2 = read_mem(param_4, param_5);
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Alloc param_6 = a;
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uint param_7 = ix + 3u;
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uint raw3 = read_mem(param_6, param_7);
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Alloc param_8 = a;
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uint param_9 = ix + 4u;
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uint raw4 = read_mem(param_8, param_9);
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Alloc param_10 = a;
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uint param_11 = ix + 5u;
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uint raw5 = read_mem(param_10, param_11);
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TileSeg s;
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s.origin = float2(asfloat(raw0), asfloat(raw1));
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s._vector = float2(asfloat(raw2), asfloat(raw3));
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s.y_edge = asfloat(raw4);
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TileSegRef _572 = { raw5 };
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s.next = _572;
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return s;
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}
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uint2 chunk_offset(uint i)
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{
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return uint2((i % 2u) * 8u, (i / 2u) * 4u);
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}
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CmdFill CmdFill_read(Alloc a, CmdFillRef ref)
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{
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uint ix = ref.offset >> uint(2);
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Alloc param = a;
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uint param_1 = ix + 0u;
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uint raw0 = read_mem(param, param_1);
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Alloc param_2 = a;
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uint param_3 = ix + 1u;
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uint raw1 = read_mem(param_2, param_3);
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CmdFill s;
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s.tile_ref = raw0;
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s.backdrop = int(raw1);
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return s;
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}
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CmdFill Cmd_Fill_read(Alloc a, CmdRef ref)
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{
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CmdFillRef _439 = { ref.offset + 4u };
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Alloc param = a;
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CmdFillRef param_1 = _439;
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return CmdFill_read(param, param_1);
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}
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CmdAlpha CmdAlpha_read(Alloc a, CmdAlphaRef ref)
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{
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uint ix = ref.offset >> uint(2);
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Alloc param = a;
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uint param_1 = ix + 0u;
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uint raw0 = read_mem(param, param_1);
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CmdAlpha s;
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s.alpha = asfloat(raw0);
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return s;
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}
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CmdAlpha Cmd_Alpha_read(Alloc a, CmdRef ref)
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{
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CmdAlphaRef _459 = { ref.offset + 4u };
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Alloc param = a;
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CmdAlphaRef param_1 = _459;
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return CmdAlpha_read(param, param_1);
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}
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CmdColor CmdColor_read(Alloc a, CmdColorRef ref)
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{
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uint ix = ref.offset >> uint(2);
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Alloc param = a;
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uint param_1 = ix + 0u;
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uint raw0 = read_mem(param, param_1);
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CmdColor s;
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s.rgba_color = raw0;
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return s;
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}
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CmdColor Cmd_Color_read(Alloc a, CmdRef ref)
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{
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CmdColorRef _469 = { ref.offset + 4u };
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Alloc param = a;
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CmdColorRef param_1 = _469;
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return CmdColor_read(param, param_1);
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}
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float3 fromsRGB(float3 srgb)
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{
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bool3 cutoff = bool3(srgb.x >= 0.040449999272823333740234375f.xxx.x, srgb.y >= 0.040449999272823333740234375f.xxx.y, srgb.z >= 0.040449999272823333740234375f.xxx.z);
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float3 below = srgb / 12.9200000762939453125f.xxx;
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float3 above = pow((srgb + 0.054999999701976776123046875f.xxx) / 1.05499994754791259765625f.xxx, 2.400000095367431640625f.xxx);
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return float3(cutoff.x ? above.x : below.x, cutoff.y ? above.y : below.y, cutoff.z ? above.z : below.z);
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}
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float4 unpacksRGB(uint srgba)
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{
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float4 color = spvUnpackUnorm4x8(srgba).wzyx;
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float3 param = color.xyz;
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return float4(fromsRGB(param), color.w);
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}
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CmdLinGrad CmdLinGrad_read(Alloc a, CmdLinGradRef ref)
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{
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uint ix = ref.offset >> uint(2);
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Alloc param = a;
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uint param_1 = ix + 0u;
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uint raw0 = read_mem(param, param_1);
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Alloc param_2 = a;
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uint param_3 = ix + 1u;
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uint raw1 = read_mem(param_2, param_3);
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Alloc param_4 = a;
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uint param_5 = ix + 2u;
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uint raw2 = read_mem(param_4, param_5);
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Alloc param_6 = a;
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uint param_7 = ix + 3u;
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uint raw3 = read_mem(param_6, param_7);
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CmdLinGrad s;
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s.index = raw0;
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s.line_x = asfloat(raw1);
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s.line_y = asfloat(raw2);
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s.line_c = asfloat(raw3);
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return s;
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}
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CmdLinGrad Cmd_LinGrad_read(Alloc a, CmdRef ref)
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{
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CmdLinGradRef _479 = { ref.offset + 4u };
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Alloc param = a;
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CmdLinGradRef param_1 = _479;
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return CmdLinGrad_read(param, param_1);
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}
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CmdImage CmdImage_read(Alloc a, CmdImageRef ref)
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{
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uint ix = ref.offset >> uint(2);
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Alloc param = a;
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uint param_1 = ix + 0u;
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uint raw0 = read_mem(param, param_1);
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Alloc param_2 = a;
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uint param_3 = ix + 1u;
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uint raw1 = read_mem(param_2, param_3);
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CmdImage s;
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s.index = raw0;
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s.offset = int2(int(raw1 << uint(16)) >> 16, int(raw1) >> 16);
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return s;
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}
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CmdImage Cmd_Image_read(Alloc a, CmdRef ref)
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{
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CmdImageRef _489 = { ref.offset + 4u };
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Alloc param = a;
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CmdImageRef param_1 = _489;
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return CmdImage_read(param, param_1);
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}
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void fillImage(out float4 spvReturnValue[8], uint2 xy, CmdImage cmd_img)
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{
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float4 rgba[8];
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for (uint i = 0u; i < 8u; i++)
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{
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uint param = i;
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int2 uv = int2(xy + chunk_offset(param)) + cmd_img.offset;
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float4 fg_rgba = image_atlas[uv];
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float3 param_1 = fg_rgba.xyz;
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float3 _695 = fromsRGB(param_1);
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fg_rgba.x = _695.x;
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fg_rgba.y = _695.y;
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fg_rgba.z = _695.z;
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rgba[i] = fg_rgba;
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}
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spvReturnValue = rgba;
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}
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float3 tosRGB(float3 rgb)
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{
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bool3 cutoff = bool3(rgb.x >= 0.003130800090730190277099609375f.xxx.x, rgb.y >= 0.003130800090730190277099609375f.xxx.y, rgb.z >= 0.003130800090730190277099609375f.xxx.z);
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float3 below = 12.9200000762939453125f.xxx * rgb;
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float3 above = (1.05499994754791259765625f.xxx * pow(rgb, 0.416660010814666748046875f.xxx)) - 0.054999999701976776123046875f.xxx;
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return float3(cutoff.x ? above.x : below.x, cutoff.y ? above.y : below.y, cutoff.z ? above.z : below.z);
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}
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uint packsRGB(inout float4 rgba)
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{
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float3 param = rgba.xyz;
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rgba = float4(tosRGB(param), rgba.w);
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return spvPackUnorm4x8(rgba.wzyx);
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}
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CmdJump CmdJump_read(Alloc a, CmdJumpRef ref)
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{
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uint ix = ref.offset >> uint(2);
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Alloc param = a;
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uint param_1 = ix + 0u;
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uint raw0 = read_mem(param, param_1);
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CmdJump s;
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s.new_ref = raw0;
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return s;
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}
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CmdJump Cmd_Jump_read(Alloc a, CmdRef ref)
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{
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CmdJumpRef _499 = { ref.offset + 4u };
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Alloc param = a;
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CmdJumpRef param_1 = _499;
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return CmdJump_read(param, param_1);
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}
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void comp_main()
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{
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uint tile_ix = (gl_WorkGroupID.y * _723.Load(8)) + gl_WorkGroupID.x;
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Alloc _738;
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_738.offset = _723.Load(24);
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Alloc param;
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param.offset = _738.offset;
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uint param_1 = tile_ix * 1024u;
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uint param_2 = 1024u;
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Alloc cmd_alloc = slice_mem(param, param_1, param_2);
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CmdRef _747 = { cmd_alloc.offset };
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CmdRef cmd_ref = _747;
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uint2 xy_uint = uint2(gl_LocalInvocationID.x + (16u * gl_WorkGroupID.x), gl_LocalInvocationID.y + (16u * gl_WorkGroupID.y));
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float2 xy = float2(xy_uint);
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float4 rgba[8];
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for (uint i = 0u; i < 8u; i++)
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{
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rgba[i] = 0.0f.xxxx;
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}
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uint clip_depth = 0u;
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bool mem_ok = _202.Load(4) == 0u;
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float df[8];
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TileSegRef tile_seg_ref;
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float area[8];
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uint blend_stack[128][8];
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while (mem_ok)
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{
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Alloc param_3 = cmd_alloc;
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CmdRef param_4 = cmd_ref;
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uint tag = Cmd_tag(param_3, param_4).tag;
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if (tag == 0u)
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{
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break;
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}
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switch (tag)
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{
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case 2u:
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{
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Alloc param_5 = cmd_alloc;
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CmdRef param_6 = cmd_ref;
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CmdStroke stroke = Cmd_Stroke_read(param_5, param_6);
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for (uint k = 0u; k < 8u; k++)
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{
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df[k] = 1000000000.0f;
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}
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TileSegRef _842 = { stroke.tile_ref };
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tile_seg_ref = _842;
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do
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{
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uint param_7 = tile_seg_ref.offset;
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uint param_8 = 24u;
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bool param_9 = mem_ok;
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Alloc param_10 = new_alloc(param_7, param_8, param_9);
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TileSegRef param_11 = tile_seg_ref;
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TileSeg seg = TileSeg_read(param_10, param_11);
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float2 line_vec = seg._vector;
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for (uint k_1 = 0u; k_1 < 8u; k_1++)
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{
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float2 dpos = (xy + 0.5f.xx) - seg.origin;
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uint param_12 = k_1;
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dpos += float2(chunk_offset(param_12));
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float t = clamp(dot(line_vec, dpos) / dot(line_vec, line_vec), 0.0f, 1.0f);
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df[k_1] = min(df[k_1], length((line_vec * t) - dpos));
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}
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tile_seg_ref = seg.next;
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} while (tile_seg_ref.offset != 0u);
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for (uint k_2 = 0u; k_2 < 8u; k_2++)
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{
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area[k_2] = clamp((stroke.half_width + 0.5f) - df[k_2], 0.0f, 1.0f);
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}
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cmd_ref.offset += 12u;
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break;
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}
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case 1u:
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{
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Alloc param_13 = cmd_alloc;
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|
CmdRef param_14 = cmd_ref;
|
|
CmdFill fill = Cmd_Fill_read(param_13, param_14);
|
|
for (uint k_3 = 0u; k_3 < 8u; k_3++)
|
|
{
|
|
area[k_3] = float(fill.backdrop);
|
|
}
|
|
TileSegRef _964 = { fill.tile_ref };
|
|
tile_seg_ref = _964;
|
|
do
|
|
{
|
|
uint param_15 = tile_seg_ref.offset;
|
|
uint param_16 = 24u;
|
|
bool param_17 = mem_ok;
|
|
Alloc param_18 = new_alloc(param_15, param_16, param_17);
|
|
TileSegRef param_19 = tile_seg_ref;
|
|
TileSeg seg_1 = TileSeg_read(param_18, param_19);
|
|
for (uint k_4 = 0u; k_4 < 8u; k_4++)
|
|
{
|
|
uint param_20 = k_4;
|
|
float2 my_xy = xy + float2(chunk_offset(param_20));
|
|
float2 start = seg_1.origin - my_xy;
|
|
float2 end = start + seg_1._vector;
|
|
float2 window = clamp(float2(start.y, end.y), 0.0f.xx, 1.0f.xx);
|
|
if (window.x != window.y)
|
|
{
|
|
float2 t_1 = (window - start.y.xx) / seg_1._vector.y.xx;
|
|
float2 xs = float2(lerp(start.x, end.x, t_1.x), lerp(start.x, end.x, t_1.y));
|
|
float xmin = min(min(xs.x, xs.y), 1.0f) - 9.9999999747524270787835121154785e-07f;
|
|
float xmax = max(xs.x, xs.y);
|
|
float b = min(xmax, 1.0f);
|
|
float c = max(b, 0.0f);
|
|
float d = max(xmin, 0.0f);
|
|
float a = ((b + (0.5f * ((d * d) - (c * c)))) - xmin) / (xmax - xmin);
|
|
area[k_4] += (a * (window.x - window.y));
|
|
}
|
|
area[k_4] += (sign(seg_1._vector.x) * clamp((my_xy.y - seg_1.y_edge) + 1.0f, 0.0f, 1.0f));
|
|
}
|
|
tile_seg_ref = seg_1.next;
|
|
} while (tile_seg_ref.offset != 0u);
|
|
for (uint k_5 = 0u; k_5 < 8u; k_5++)
|
|
{
|
|
area[k_5] = min(abs(area[k_5]), 1.0f);
|
|
}
|
|
cmd_ref.offset += 12u;
|
|
break;
|
|
}
|
|
case 3u:
|
|
{
|
|
for (uint k_6 = 0u; k_6 < 8u; k_6++)
|
|
{
|
|
area[k_6] = 1.0f;
|
|
}
|
|
cmd_ref.offset += 4u;
|
|
break;
|
|
}
|
|
case 4u:
|
|
{
|
|
Alloc param_21 = cmd_alloc;
|
|
CmdRef param_22 = cmd_ref;
|
|
CmdAlpha alpha = Cmd_Alpha_read(param_21, param_22);
|
|
for (uint k_7 = 0u; k_7 < 8u; k_7++)
|
|
{
|
|
area[k_7] = alpha.alpha;
|
|
}
|
|
cmd_ref.offset += 8u;
|
|
break;
|
|
}
|
|
case 5u:
|
|
{
|
|
Alloc param_23 = cmd_alloc;
|
|
CmdRef param_24 = cmd_ref;
|
|
CmdColor color = Cmd_Color_read(param_23, param_24);
|
|
uint param_25 = color.rgba_color;
|
|
float4 fg = unpacksRGB(param_25);
|
|
for (uint k_8 = 0u; k_8 < 8u; k_8++)
|
|
{
|
|
float4 fg_k = fg * area[k_8];
|
|
rgba[k_8] = (rgba[k_8] * (1.0f - fg_k.w)) + fg_k;
|
|
}
|
|
cmd_ref.offset += 8u;
|
|
break;
|
|
}
|
|
case 6u:
|
|
{
|
|
Alloc param_26 = cmd_alloc;
|
|
CmdRef param_27 = cmd_ref;
|
|
CmdLinGrad lin = Cmd_LinGrad_read(param_26, param_27);
|
|
float d_1 = ((lin.line_x * xy.x) + (lin.line_y * xy.y)) + lin.line_c;
|
|
for (uint k_9 = 0u; k_9 < 8u; k_9++)
|
|
{
|
|
uint param_28 = k_9;
|
|
float2 chunk_xy = float2(chunk_offset(param_28));
|
|
float my_d = (d_1 + (lin.line_x * chunk_xy.x)) + (lin.line_y * chunk_xy.y);
|
|
int x = int(round(clamp(my_d, 0.0f, 1.0f) * 511.0f));
|
|
float4 fg_rgba = gradients[int2(x, int(lin.index))];
|
|
float3 param_29 = fg_rgba.xyz;
|
|
float3 _1298 = fromsRGB(param_29);
|
|
fg_rgba.x = _1298.x;
|
|
fg_rgba.y = _1298.y;
|
|
fg_rgba.z = _1298.z;
|
|
rgba[k_9] = fg_rgba;
|
|
}
|
|
cmd_ref.offset += 20u;
|
|
break;
|
|
}
|
|
case 7u:
|
|
{
|
|
Alloc param_30 = cmd_alloc;
|
|
CmdRef param_31 = cmd_ref;
|
|
CmdImage fill_img = Cmd_Image_read(param_30, param_31);
|
|
uint2 param_32 = xy_uint;
|
|
CmdImage param_33 = fill_img;
|
|
float4 _1327[8];
|
|
fillImage(_1327, param_32, param_33);
|
|
float4 img[8] = _1327;
|
|
for (uint k_10 = 0u; k_10 < 8u; k_10++)
|
|
{
|
|
float4 fg_k_1 = img[k_10] * area[k_10];
|
|
rgba[k_10] = (rgba[k_10] * (1.0f - fg_k_1.w)) + fg_k_1;
|
|
}
|
|
cmd_ref.offset += 12u;
|
|
break;
|
|
}
|
|
case 8u:
|
|
{
|
|
for (uint k_11 = 0u; k_11 < 8u; k_11++)
|
|
{
|
|
uint d_2 = min(clip_depth, 127u);
|
|
float4 param_34 = float4(rgba[k_11]);
|
|
uint _1390 = packsRGB(param_34);
|
|
blend_stack[d_2][k_11] = _1390;
|
|
rgba[k_11] = 0.0f.xxxx;
|
|
}
|
|
clip_depth++;
|
|
cmd_ref.offset += 4u;
|
|
break;
|
|
}
|
|
case 9u:
|
|
{
|
|
clip_depth--;
|
|
for (uint k_12 = 0u; k_12 < 8u; k_12++)
|
|
{
|
|
uint d_3 = min(clip_depth, 127u);
|
|
uint param_35 = blend_stack[d_3][k_12];
|
|
float4 bg = unpacksRGB(param_35);
|
|
float4 fg_1 = rgba[k_12] * area[k_12];
|
|
rgba[k_12] = (bg * (1.0f - fg_1.w)) + fg_1;
|
|
}
|
|
cmd_ref.offset += 4u;
|
|
break;
|
|
}
|
|
case 10u:
|
|
{
|
|
Alloc param_36 = cmd_alloc;
|
|
CmdRef param_37 = cmd_ref;
|
|
CmdRef _1453 = { Cmd_Jump_read(param_36, param_37).new_ref };
|
|
cmd_ref = _1453;
|
|
cmd_alloc.offset = cmd_ref.offset;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
for (uint i_1 = 0u; i_1 < 8u; i_1++)
|
|
{
|
|
uint param_38 = i_1;
|
|
image[int2(xy_uint + chunk_offset(param_38))] = rgba[i_1].w.x;
|
|
}
|
|
}
|
|
|
|
[numthreads(8, 4, 1)]
|
|
void main(SPIRV_Cross_Input stage_input)
|
|
{
|
|
gl_WorkGroupID = stage_input.gl_WorkGroupID;
|
|
gl_LocalInvocationID = stage_input.gl_LocalInvocationID;
|
|
comp_main();
|
|
}
|