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vello/piet-gpu/shader/gen/kernel4_gray.hlsl
Raph Levien acb3933d94 Variable size encoding of draw objects 
This patch switches to a variable size encoding of draw objects.

In addition to the CPU-side scene encoding, it changes the representation of intermediate per draw object state from the `Annotated` struct to a variable "info" encoding. In addition, the bounding boxes are moved to a separate array (for a more "structure of "arrays" approach). Data that's unchanged from the scene encoding is not copied. Rather, downstream stages can access the data from the scene buffer (reducing allocation and copying).

Prefix sums, computed in `DrawMonoid` track the offset of both scene and intermediate data. The tags for the CPU-side encoding have been split into their own stream (again a change from AoS to SoA style).

This is not necessarily the final form. There's some stuff (including at least one piet-gpu-derive type) that can be deleted. In addition, the linewidth field should probably move from the info to path-specific. Also, the 1:1 correspondence between draw object and path has not yet been broken.

Closes #152
2022-03-14 16:32:08 -07:00

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struct Alloc
{
uint offset;
};
struct CmdStrokeRef
{
uint offset;
};
struct CmdStroke
{
uint tile_ref;
float half_width;
};
struct CmdFillRef
{
uint offset;
};
struct CmdFill
{
uint tile_ref;
int backdrop;
};
struct CmdColorRef
{
uint offset;
};
struct CmdColor
{
uint rgba_color;
};
struct CmdLinGradRef
{
uint offset;
};
struct CmdLinGrad
{
uint index;
float line_x;
float line_y;
float line_c;
};
struct CmdImageRef
{
uint offset;
};
struct CmdImage
{
uint index;
int2 offset;
};
struct CmdAlphaRef
{
uint offset;
};
struct CmdAlpha
{
float alpha;
};
struct CmdEndClipRef
{
uint offset;
};
struct CmdEndClip
{
uint blend;
};
struct CmdJumpRef
{
uint offset;
};
struct CmdJump
{
uint new_ref;
};
struct CmdRef
{
uint offset;
};
struct CmdTag
{
uint tag;
uint flags;
};
struct TileSegRef
{
uint offset;
};
struct TileSeg
{
float2 origin;
float2 _vector;
float y_edge;
TileSegRef next;
};
struct Config
{
uint n_elements;
uint n_pathseg;
uint width_in_tiles;
uint height_in_tiles;
Alloc tile_alloc;
Alloc bin_alloc;
Alloc ptcl_alloc;
Alloc pathseg_alloc;
Alloc anno_alloc;
Alloc trans_alloc;
Alloc path_bbox_alloc;
Alloc drawmonoid_alloc;
Alloc clip_alloc;
Alloc clip_bic_alloc;
Alloc clip_stack_alloc;
Alloc clip_bbox_alloc;
Alloc draw_bbox_alloc;
Alloc drawinfo_alloc;
uint n_trans;
uint n_path;
uint n_clip;
uint trans_offset;
uint linewidth_offset;
uint pathtag_offset;
uint pathseg_offset;
uint drawtag_offset;
uint drawdata_offset;
};
static const uint3 gl_WorkGroupSize = uint3(8u, 4u, 1u);
RWByteAddressBuffer _278 : register(u0, space0);
ByteAddressBuffer _1521 : register(t1, space0);
RWTexture2D<unorm float4> image_atlas : register(u3, space0);
RWTexture2D<unorm float4> gradients : register(u4, space0);
RWTexture2D<unorm float> image : register(u2, space0);
static uint3 gl_WorkGroupID;
static uint3 gl_LocalInvocationID;
struct SPIRV_Cross_Input
{
uint3 gl_WorkGroupID : SV_GroupID;
uint3 gl_LocalInvocationID : SV_GroupThreadID;
};
uint spvPackUnorm4x8(float4 value)
{
uint4 Packed = uint4(round(saturate(value) * 255.0));
return Packed.x | (Packed.y << 8) | (Packed.z << 16) | (Packed.w << 24);
}
float4 spvUnpackUnorm4x8(uint value)
{
uint4 Packed = uint4(value & 0xff, (value >> 8) & 0xff, (value >> 16) & 0xff, value >> 24);
return float4(Packed) / 255.0;
}
Alloc slice_mem(Alloc a, uint offset, uint size)
{
Alloc _291 = { a.offset + offset };
return _291;
}
bool touch_mem(Alloc alloc, uint offset)
{
return true;
}
uint read_mem(Alloc alloc, uint offset)
{
Alloc param = alloc;
uint param_1 = offset;
if (!touch_mem(param, param_1))
{
return 0u;
}
uint v = _278.Load(offset * 4 + 8);
return v;
}
CmdTag Cmd_tag(Alloc a, CmdRef ref)
{
Alloc param = a;
uint param_1 = ref.offset >> uint(2);
uint tag_and_flags = read_mem(param, param_1);
CmdTag _525 = { tag_and_flags & 65535u, tag_and_flags >> uint(16) };
return _525;
}
CmdStroke CmdStroke_read(Alloc a, CmdStrokeRef ref)
{
uint ix = ref.offset >> uint(2);
Alloc param = a;
uint param_1 = ix + 0u;
uint raw0 = read_mem(param, param_1);
Alloc param_2 = a;
uint param_3 = ix + 1u;
uint raw1 = read_mem(param_2, param_3);
CmdStroke s;
s.tile_ref = raw0;
s.half_width = asfloat(raw1);
return s;
}
CmdStroke Cmd_Stroke_read(Alloc a, CmdRef ref)
{
CmdStrokeRef _542 = { ref.offset + 4u };
Alloc param = a;
CmdStrokeRef param_1 = _542;
return CmdStroke_read(param, param_1);
}
Alloc new_alloc(uint offset, uint size, bool mem_ok)
{
Alloc a;
a.offset = offset;
return a;
}
TileSeg TileSeg_read(Alloc a, TileSegRef ref)
{
uint ix = ref.offset >> uint(2);
Alloc param = a;
uint param_1 = ix + 0u;
uint raw0 = read_mem(param, param_1);
Alloc param_2 = a;
uint param_3 = ix + 1u;
uint raw1 = read_mem(param_2, param_3);
Alloc param_4 = a;
uint param_5 = ix + 2u;
uint raw2 = read_mem(param_4, param_5);
Alloc param_6 = a;
uint param_7 = ix + 3u;
uint raw3 = read_mem(param_6, param_7);
Alloc param_8 = a;
uint param_9 = ix + 4u;
uint raw4 = read_mem(param_8, param_9);
Alloc param_10 = a;
uint param_11 = ix + 5u;
uint raw5 = read_mem(param_10, param_11);
TileSeg s;
s.origin = float2(asfloat(raw0), asfloat(raw1));
s._vector = float2(asfloat(raw2), asfloat(raw3));
s.y_edge = asfloat(raw4);
TileSegRef _675 = { raw5 };
s.next = _675;
return s;
}
uint2 chunk_offset(uint i)
{
return uint2((i % 2u) * 8u, (i / 2u) * 4u);
}
CmdFill CmdFill_read(Alloc a, CmdFillRef ref)
{
uint ix = ref.offset >> uint(2);
Alloc param = a;
uint param_1 = ix + 0u;
uint raw0 = read_mem(param, param_1);
Alloc param_2 = a;
uint param_3 = ix + 1u;
uint raw1 = read_mem(param_2, param_3);
CmdFill s;
s.tile_ref = raw0;
s.backdrop = int(raw1);
return s;
}
CmdFill Cmd_Fill_read(Alloc a, CmdRef ref)
{
CmdFillRef _532 = { ref.offset + 4u };
Alloc param = a;
CmdFillRef param_1 = _532;
return CmdFill_read(param, param_1);
}
CmdAlpha CmdAlpha_read(Alloc a, CmdAlphaRef ref)
{
uint ix = ref.offset >> uint(2);
Alloc param = a;
uint param_1 = ix + 0u;
uint raw0 = read_mem(param, param_1);
CmdAlpha s;
s.alpha = asfloat(raw0);
return s;
}
CmdAlpha Cmd_Alpha_read(Alloc a, CmdRef ref)
{
CmdAlphaRef _552 = { ref.offset + 4u };
Alloc param = a;
CmdAlphaRef param_1 = _552;
return CmdAlpha_read(param, param_1);
}
CmdColor CmdColor_read(Alloc a, CmdColorRef ref)
{
uint ix = ref.offset >> uint(2);
Alloc param = a;
uint param_1 = ix + 0u;
uint raw0 = read_mem(param, param_1);
CmdColor s;
s.rgba_color = raw0;
return s;
}
CmdColor Cmd_Color_read(Alloc a, CmdRef ref)
{
CmdColorRef _562 = { ref.offset + 4u };
Alloc param = a;
CmdColorRef param_1 = _562;
return CmdColor_read(param, param_1);
}
float3 fromsRGB(float3 srgb)
{
bool3 cutoff = bool3(srgb.x >= 0.040449999272823333740234375f.xxx.x, srgb.y >= 0.040449999272823333740234375f.xxx.y, srgb.z >= 0.040449999272823333740234375f.xxx.z);
float3 below = srgb / 12.9200000762939453125f.xxx;
float3 above = pow((srgb + 0.054999999701976776123046875f.xxx) / 1.05499994754791259765625f.xxx, 2.400000095367431640625f.xxx);
return float3(cutoff.x ? above.x : below.x, cutoff.y ? above.y : below.y, cutoff.z ? above.z : below.z);
}
float4 unpacksRGB(uint srgba)
{
float4 color = spvUnpackUnorm4x8(srgba).wzyx;
float3 param = color.xyz;
return float4(fromsRGB(param), color.w);
}
CmdLinGrad CmdLinGrad_read(Alloc a, CmdLinGradRef ref)
{
uint ix = ref.offset >> uint(2);
Alloc param = a;
uint param_1 = ix + 0u;
uint raw0 = read_mem(param, param_1);
Alloc param_2 = a;
uint param_3 = ix + 1u;
uint raw1 = read_mem(param_2, param_3);
Alloc param_4 = a;
uint param_5 = ix + 2u;
uint raw2 = read_mem(param_4, param_5);
Alloc param_6 = a;
uint param_7 = ix + 3u;
uint raw3 = read_mem(param_6, param_7);
CmdLinGrad s;
s.index = raw0;
s.line_x = asfloat(raw1);
s.line_y = asfloat(raw2);
s.line_c = asfloat(raw3);
return s;
}
CmdLinGrad Cmd_LinGrad_read(Alloc a, CmdRef ref)
{
CmdLinGradRef _572 = { ref.offset + 4u };
Alloc param = a;
CmdLinGradRef param_1 = _572;
return CmdLinGrad_read(param, param_1);
}
CmdImage CmdImage_read(Alloc a, CmdImageRef ref)
{
uint ix = ref.offset >> uint(2);
Alloc param = a;
uint param_1 = ix + 0u;
uint raw0 = read_mem(param, param_1);
Alloc param_2 = a;
uint param_3 = ix + 1u;
uint raw1 = read_mem(param_2, param_3);
CmdImage s;
s.index = raw0;
s.offset = int2(int(raw1 << uint(16)) >> 16, int(raw1) >> 16);
return s;
}
CmdImage Cmd_Image_read(Alloc a, CmdRef ref)
{
CmdImageRef _582 = { ref.offset + 4u };
Alloc param = a;
CmdImageRef param_1 = _582;
return CmdImage_read(param, param_1);
}
void fillImage(out float4 spvReturnValue[8], uint2 xy, CmdImage cmd_img)
{
float4 rgba[8];
for (uint i = 0u; i < 8u; i++)
{
uint param = i;
int2 uv = int2(xy + chunk_offset(param)) + cmd_img.offset;
float4 fg_rgba = image_atlas[uv];
float3 param_1 = fg_rgba.xyz;
float3 _1493 = fromsRGB(param_1);
fg_rgba.x = _1493.x;
fg_rgba.y = _1493.y;
fg_rgba.z = _1493.z;
rgba[i] = fg_rgba;
}
spvReturnValue = rgba;
}
float3 tosRGB(float3 rgb)
{
bool3 cutoff = bool3(rgb.x >= 0.003130800090730190277099609375f.xxx.x, rgb.y >= 0.003130800090730190277099609375f.xxx.y, rgb.z >= 0.003130800090730190277099609375f.xxx.z);
float3 below = 12.9200000762939453125f.xxx * rgb;
float3 above = (1.05499994754791259765625f.xxx * pow(rgb, 0.416660010814666748046875f.xxx)) - 0.054999999701976776123046875f.xxx;
return float3(cutoff.x ? above.x : below.x, cutoff.y ? above.y : below.y, cutoff.z ? above.z : below.z);
}
uint packsRGB(inout float4 rgba)
{
float3 param = rgba.xyz;
rgba = float4(tosRGB(param), rgba.w);
return spvPackUnorm4x8(rgba.wzyx);
}
CmdEndClip CmdEndClip_read(Alloc a, CmdEndClipRef ref)
{
uint ix = ref.offset >> uint(2);
Alloc param = a;
uint param_1 = ix + 0u;
uint raw0 = read_mem(param, param_1);
CmdEndClip s;
s.blend = raw0;
return s;
}
CmdEndClip Cmd_EndClip_read(Alloc a, CmdRef ref)
{
CmdEndClipRef _592 = { ref.offset + 4u };
Alloc param = a;
CmdEndClipRef param_1 = _592;
return CmdEndClip_read(param, param_1);
}
float3 screen(float3 cb, float3 cs)
{
return (cb + cs) - (cb * cs);
}
float3 hard_light(float3 cb, float3 cs)
{
float3 param = cb;
float3 param_1 = (cs * 2.0f) - 1.0f.xxx;
return lerp(screen(param, param_1), (cb * 2.0f) * cs, float3(bool3(cs.x <= 0.5f.xxx.x, cs.y <= 0.5f.xxx.y, cs.z <= 0.5f.xxx.z)));
}
float color_dodge(float cb, float cs)
{
if (cb == 0.0f)
{
return 0.0f;
}
else
{
if (cs == 1.0f)
{
return 1.0f;
}
else
{
return min(1.0f, cb / (1.0f - cs));
}
}
}
float color_burn(float cb, float cs)
{
if (cb == 1.0f)
{
return 1.0f;
}
else
{
if (cs == 0.0f)
{
return 0.0f;
}
else
{
return 1.0f - min(1.0f, (1.0f - cb) / cs);
}
}
}
float3 soft_light(float3 cb, float3 cs)
{
float3 d = lerp(sqrt(cb), ((((cb * 16.0f) - 12.0f.xxx) * cb) + 4.0f.xxx) * cb, float3(bool3(cb.x <= 0.25f.xxx.x, cb.y <= 0.25f.xxx.y, cb.z <= 0.25f.xxx.z)));
return lerp(cb + (((cs * 2.0f) - 1.0f.xxx) * (d - cb)), cb - (((1.0f.xxx - (cs * 2.0f)) * cb) * (1.0f.xxx - cb)), float3(bool3(cs.x <= 0.5f.xxx.x, cs.y <= 0.5f.xxx.y, cs.z <= 0.5f.xxx.z)));
}
float sat(float3 c)
{
return max(c.x, max(c.y, c.z)) - min(c.x, min(c.y, c.z));
}
void set_sat_inner(inout float cmin, inout float cmid, inout float cmax, float s)
{
if (cmax > cmin)
{
cmid = ((cmid - cmin) * s) / (cmax - cmin);
cmax = s;
}
else
{
cmid = 0.0f;
cmax = 0.0f;
}
cmin = 0.0f;
}
float3 set_sat(inout float3 c, float s)
{
if (c.x <= c.y)
{
if (c.y <= c.z)
{
float param = c.x;
float param_1 = c.y;
float param_2 = c.z;
float param_3 = s;
set_sat_inner(param, param_1, param_2, param_3);
c.x = param;
c.y = param_1;
c.z = param_2;
}
else
{
if (c.x <= c.z)
{
float param_4 = c.x;
float param_5 = c.z;
float param_6 = c.y;
float param_7 = s;
set_sat_inner(param_4, param_5, param_6, param_7);
c.x = param_4;
c.z = param_5;
c.y = param_6;
}
else
{
float param_8 = c.z;
float param_9 = c.x;
float param_10 = c.y;
float param_11 = s;
set_sat_inner(param_8, param_9, param_10, param_11);
c.z = param_8;
c.x = param_9;
c.y = param_10;
}
}
}
else
{
if (c.x <= c.z)
{
float param_12 = c.y;
float param_13 = c.x;
float param_14 = c.z;
float param_15 = s;
set_sat_inner(param_12, param_13, param_14, param_15);
c.y = param_12;
c.x = param_13;
c.z = param_14;
}
else
{
if (c.y <= c.z)
{
float param_16 = c.y;
float param_17 = c.z;
float param_18 = c.x;
float param_19 = s;
set_sat_inner(param_16, param_17, param_18, param_19);
c.y = param_16;
c.z = param_17;
c.x = param_18;
}
else
{
float param_20 = c.z;
float param_21 = c.y;
float param_22 = c.x;
float param_23 = s;
set_sat_inner(param_20, param_21, param_22, param_23);
c.z = param_20;
c.y = param_21;
c.x = param_22;
}
}
}
return c;
}
float lum(float3 c)
{
float3 f = float3(0.300000011920928955078125f, 0.589999973773956298828125f, 0.10999999940395355224609375f);
return dot(c, f);
}
float3 clip_color(inout float3 c)
{
float3 param = c;
float L = lum(param);
float n = min(c.x, min(c.y, c.z));
float x = max(c.x, max(c.y, c.z));
if (n < 0.0f)
{
c = L.xxx + (((c - L.xxx) * L) / (L - n).xxx);
}
if (x > 1.0f)
{
c = L.xxx + (((c - L.xxx) * (1.0f - L)) / (x - L).xxx);
}
return c;
}
float3 set_lum(float3 c, float l)
{
float3 param = c;
float3 param_1 = c + (l - lum(param)).xxx;
float3 _901 = clip_color(param_1);
return _901;
}
float3 mix_blend(float3 cb, float3 cs, uint mode)
{
float3 b = 0.0f.xxx;
switch (mode)
{
case 1u:
{
b = cb * cs;
break;
}
case 2u:
{
float3 param = cb;
float3 param_1 = cs;
b = screen(param, param_1);
break;
}
case 3u:
{
float3 param_2 = cs;
float3 param_3 = cb;
b = hard_light(param_2, param_3);
break;
}
case 4u:
{
b = min(cb, cs);
break;
}
case 5u:
{
b = max(cb, cs);
break;
}
case 6u:
{
float param_4 = cb.x;
float param_5 = cs.x;
float param_6 = cb.y;
float param_7 = cs.y;
float param_8 = cb.z;
float param_9 = cs.z;
b = float3(color_dodge(param_4, param_5), color_dodge(param_6, param_7), color_dodge(param_8, param_9));
break;
}
case 7u:
{
float param_10 = cb.x;
float param_11 = cs.x;
float param_12 = cb.y;
float param_13 = cs.y;
float param_14 = cb.z;
float param_15 = cs.z;
b = float3(color_burn(param_10, param_11), color_burn(param_12, param_13), color_burn(param_14, param_15));
break;
}
case 8u:
{
float3 param_16 = cb;
float3 param_17 = cs;
b = hard_light(param_16, param_17);
break;
}
case 9u:
{
float3 param_18 = cb;
float3 param_19 = cs;
b = soft_light(param_18, param_19);
break;
}
case 10u:
{
b = abs(cb - cs);
break;
}
case 11u:
{
b = (cb + cs) - ((cb * 2.0f) * cs);
break;
}
case 12u:
{
float3 param_20 = cb;
float3 param_21 = cs;
float param_22 = sat(param_20);
float3 _1192 = set_sat(param_21, param_22);
float3 param_23 = cb;
float3 param_24 = _1192;
float param_25 = lum(param_23);
b = set_lum(param_24, param_25);
break;
}
case 13u:
{
float3 param_26 = cs;
float3 param_27 = cb;
float param_28 = sat(param_26);
float3 _1206 = set_sat(param_27, param_28);
float3 param_29 = cb;
float3 param_30 = _1206;
float param_31 = lum(param_29);
b = set_lum(param_30, param_31);
break;
}
case 14u:
{
float3 param_32 = cb;
float3 param_33 = cs;
float param_34 = lum(param_32);
b = set_lum(param_33, param_34);
break;
}
case 15u:
{
float3 param_35 = cs;
float3 param_36 = cb;
float param_37 = lum(param_35);
b = set_lum(param_36, param_37);
break;
}
default:
{
b = cs;
break;
}
}
return b;
}
float4 mix_compose(float3 cb, float3 cs, float ab, float as, uint mode)
{
float fa = 0.0f;
float fb = 0.0f;
switch (mode)
{
case 1u:
{
fa = 1.0f;
fb = 0.0f;
break;
}
case 2u:
{
fa = 0.0f;
fb = 1.0f;
break;
}
case 3u:
{
fa = 1.0f;
fb = 1.0f - as;
break;
}
case 4u:
{
fa = 1.0f - ab;
fb = 1.0f;
break;
}
case 5u:
{
fa = ab;
fb = 0.0f;
break;
}
case 6u:
{
fa = 0.0f;
fb = as;
break;
}
case 7u:
{
fa = 1.0f - ab;
fb = 0.0f;
break;
}
case 8u:
{
fa = 0.0f;
fb = 1.0f - as;
break;
}
case 9u:
{
fa = ab;
fb = 1.0f - as;
break;
}
case 10u:
{
fa = 1.0f - ab;
fb = as;
break;
}
case 11u:
{
fa = 1.0f - ab;
fb = 1.0f - as;
break;
}
case 12u:
{
fa = 1.0f;
fb = 1.0f;
break;
}
case 13u:
{
return float4(max(0.0f.xxxx, ((1.0f.xxxx - (float4(cs, as) * as)) + 1.0f.xxxx) - (float4(cb, ab) * ab)).xyz, max(0.0f, ((1.0f - as) + 1.0f) - ab));
}
case 14u:
{
return float4(min(1.0f.xxxx, (float4(cs, as) * as) + (float4(cb, ab) * ab)).xyz, min(1.0f, as + ab));
}
default:
{
break;
}
}
return (float4(cs, as) * (as * fa)) + (float4(cb, ab) * (ab * fb));
}
CmdJump CmdJump_read(Alloc a, CmdJumpRef ref)
{
uint ix = ref.offset >> uint(2);
Alloc param = a;
uint param_1 = ix + 0u;
uint raw0 = read_mem(param, param_1);
CmdJump s;
s.new_ref = raw0;
return s;
}
CmdJump Cmd_Jump_read(Alloc a, CmdRef ref)
{
CmdJumpRef _602 = { ref.offset + 4u };
Alloc param = a;
CmdJumpRef param_1 = _602;
return CmdJump_read(param, param_1);
}
void comp_main()
{
uint tile_ix = (gl_WorkGroupID.y * _1521.Load(8)) + gl_WorkGroupID.x;
Alloc _1536;
_1536.offset = _1521.Load(24);
Alloc param;
param.offset = _1536.offset;
uint param_1 = tile_ix * 1024u;
uint param_2 = 1024u;
Alloc cmd_alloc = slice_mem(param, param_1, param_2);
CmdRef _1545 = { cmd_alloc.offset };
CmdRef cmd_ref = _1545;
uint2 xy_uint = uint2(gl_LocalInvocationID.x + (16u * gl_WorkGroupID.x), gl_LocalInvocationID.y + (16u * gl_WorkGroupID.y));
float2 xy = float2(xy_uint);
float4 rgba[8];
for (uint i = 0u; i < 8u; i++)
{
rgba[i] = 0.0f.xxxx;
}
uint clip_depth = 0u;
bool mem_ok = _278.Load(4) == 0u;
float df[8];
TileSegRef tile_seg_ref;
float area[8];
uint blend_stack[128][8];
while (mem_ok)
{
Alloc param_3 = cmd_alloc;
CmdRef param_4 = cmd_ref;
uint tag = Cmd_tag(param_3, param_4).tag;
if (tag == 0u)
{
break;
}
switch (tag)
{
case 2u:
{
Alloc param_5 = cmd_alloc;
CmdRef param_6 = cmd_ref;
CmdStroke stroke = Cmd_Stroke_read(param_5, param_6);
for (uint k = 0u; k < 8u; k++)
{
df[k] = 1000000000.0f;
}
TileSegRef _1638 = { stroke.tile_ref };
tile_seg_ref = _1638;
do
{
uint param_7 = tile_seg_ref.offset;
uint param_8 = 24u;
bool param_9 = mem_ok;
Alloc param_10 = new_alloc(param_7, param_8, param_9);
TileSegRef param_11 = tile_seg_ref;
TileSeg seg = TileSeg_read(param_10, param_11);
float2 line_vec = seg._vector;
for (uint k_1 = 0u; k_1 < 8u; k_1++)
{
float2 dpos = (xy + 0.5f.xx) - seg.origin;
uint param_12 = k_1;
dpos += float2(chunk_offset(param_12));
float t = clamp(dot(line_vec, dpos) / dot(line_vec, line_vec), 0.0f, 1.0f);
df[k_1] = min(df[k_1], length((line_vec * t) - dpos));
}
tile_seg_ref = seg.next;
} while (tile_seg_ref.offset != 0u);
for (uint k_2 = 0u; k_2 < 8u; k_2++)
{
area[k_2] = clamp((stroke.half_width + 0.5f) - df[k_2], 0.0f, 1.0f);
}
cmd_ref.offset += 12u;
break;
}
case 1u:
{
Alloc param_13 = cmd_alloc;
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 _1758 = { fill.tile_ref };
tile_seg_ref = _1758;
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 _2092 = fromsRGB(param_29);
fg_rgba.x = _2092.x;
fg_rgba.y = _2092.y;
fg_rgba.z = _2092.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 _2121[8];
fillImage(_2121, param_32, param_33);
float4 img[8] = _2121;
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 _2184 = packsRGB(param_34);
blend_stack[d_2][k_11] = _2184;
rgba[k_11] = 0.0f.xxxx;
}
clip_depth++;
cmd_ref.offset += 4u;
break;
}
case 9u:
{
Alloc param_35 = cmd_alloc;
CmdRef param_36 = cmd_ref;
CmdEndClip end_clip = Cmd_EndClip_read(param_35, param_36);
uint blend_mode = end_clip.blend >> uint(8);
uint comp_mode = end_clip.blend & 255u;
clip_depth--;
for (uint k_12 = 0u; k_12 < 8u; k_12++)
{
uint d_3 = min(clip_depth, 127u);
uint param_37 = blend_stack[d_3][k_12];
float4 bg = unpacksRGB(param_37);
float4 fg_1 = rgba[k_12] * area[k_12];
float3 param_38 = bg.xyz;
float3 param_39 = fg_1.xyz;
uint param_40 = blend_mode;
float3 blend = mix_blend(param_38, param_39, param_40);
float4 _2251 = fg_1;
float _2255 = fg_1.w;
float3 _2262 = lerp(_2251.xyz, blend, float((_2255 * bg.w) > 0.0f).xxx);
fg_1.x = _2262.x;
fg_1.y = _2262.y;
fg_1.z = _2262.z;
float3 param_41 = bg.xyz;
float3 param_42 = fg_1.xyz;
float param_43 = bg.w;
float param_44 = fg_1.w;
uint param_45 = comp_mode;
rgba[k_12] = mix_compose(param_41, param_42, param_43, param_44, param_45);
}
cmd_ref.offset += 8u;
break;
}
case 10u:
{
Alloc param_46 = cmd_alloc;
CmdRef param_47 = cmd_ref;
CmdRef _2299 = { Cmd_Jump_read(param_46, param_47).new_ref };
cmd_ref = _2299;
cmd_alloc.offset = cmd_ref.offset;
break;
}
}
}
for (uint i_1 = 0u; i_1 < 8u; i_1++)
{
uint param_48 = i_1;
image[int2(xy_uint + chunk_offset(param_48))] = 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();
}
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