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Fix JFA shader constant-register restriction

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This commit is contained in:
Dusk-92
2026-08-28 21:37:02 +02:00
parent fab99d1f96
commit 220236855f
1 changed files with 12 additions and 8 deletions
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src/outline/d3d9_hook.zig
+12 -8
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@@ -536,13 +536,17 @@ const jfa_prop_src =
"def c9, 1.0, 1.0, 0.0, 0.0\n" ++
"dcl_2d s0\n" ++
"dcl_texcoord0 v0\n" ++
// D3DX on this client only allows one c# register per arithmetic
// instruction. Copy c0.xy (step size) to a temp once, then combine
// that temp with c2..c9 in the neighbor MADs.
"mov r7.xy, c0.xy\n" ++
// Self sample - initialize best seed and distance
"texld r0, v0, s0\n" ++
"sub r2.xy, v0.xy, r0.xy\n" ++
"dp2add r9.x, r2, r2, c1.x\n" ++ // best dist²
"mov r8.xy, r0.xy\n" ++ // best seed UV
// Neighbor (-1,-1) via c2
"mad r4.xy, c2.xy, c0.xy, v0.xy\n" ++
"mad r4.xy, c2.xy, r7.xy, v0.xy\n" ++
"texld r5, r4, s0\n" ++
"sub r2.xy, v0.xy, r5.xy\n" ++
"dp2add r2.z, r2, r2, c1.x\n" ++
@@ -550,7 +554,7 @@ const jfa_prop_src =
"cmp r8.xy, r3.x, r8.xy, r5.xy\n" ++
"cmp r9.x, r3.x, r9.x, r2.z\n" ++
// Neighbor (-1, 0) via c3
"mad r4.xy, c3.xy, c0.xy, v0.xy\n" ++
"mad r4.xy, c3.xy, r7.xy, v0.xy\n" ++
"texld r5, r4, s0\n" ++
"sub r2.xy, v0.xy, r5.xy\n" ++
"dp2add r2.z, r2, r2, c1.x\n" ++
@@ -558,7 +562,7 @@ const jfa_prop_src =
"cmp r8.xy, r3.x, r8.xy, r5.xy\n" ++
"cmp r9.x, r3.x, r9.x, r2.z\n" ++
// Neighbor (-1, 1) via c4
"mad r4.xy, c4.xy, c0.xy, v0.xy\n" ++
"mad r4.xy, c4.xy, r7.xy, v0.xy\n" ++
"texld r5, r4, s0\n" ++
"sub r2.xy, v0.xy, r5.xy\n" ++
"dp2add r2.z, r2, r2, c1.x\n" ++
@@ -566,7 +570,7 @@ const jfa_prop_src =
"cmp r8.xy, r3.x, r8.xy, r5.xy\n" ++
"cmp r9.x, r3.x, r9.x, r2.z\n" ++
// Neighbor (0, -1) via c5
"mad r4.xy, c5.xy, c0.xy, v0.xy\n" ++
"mad r4.xy, c5.xy, r7.xy, v0.xy\n" ++
"texld r5, r4, s0\n" ++
"sub r2.xy, v0.xy, r5.xy\n" ++
"dp2add r2.z, r2, r2, c1.x\n" ++
@@ -574,7 +578,7 @@ const jfa_prop_src =
"cmp r8.xy, r3.x, r8.xy, r5.xy\n" ++
"cmp r9.x, r3.x, r9.x, r2.z\n" ++
// Neighbor (0, 1) via c6
"mad r4.xy, c6.xy, c0.xy, v0.xy\n" ++
"mad r4.xy, c6.xy, r7.xy, v0.xy\n" ++
"texld r5, r4, s0\n" ++
"sub r2.xy, v0.xy, r5.xy\n" ++
"dp2add r2.z, r2, r2, c1.x\n" ++
@@ -582,7 +586,7 @@ const jfa_prop_src =
"cmp r8.xy, r3.x, r8.xy, r5.xy\n" ++
"cmp r9.x, r3.x, r9.x, r2.z\n" ++
// Neighbor (1, -1) via c7
"mad r4.xy, c7.xy, c0.xy, v0.xy\n" ++
"mad r4.xy, c7.xy, r7.xy, v0.xy\n" ++
"texld r5, r4, s0\n" ++
"sub r2.xy, v0.xy, r5.xy\n" ++
"dp2add r2.z, r2, r2, c1.x\n" ++
@@ -590,7 +594,7 @@ const jfa_prop_src =
"cmp r8.xy, r3.x, r8.xy, r5.xy\n" ++
"cmp r9.x, r3.x, r9.x, r2.z\n" ++
// Neighbor (1, 0) via c8
"mad r4.xy, c8.xy, c0.xy, v0.xy\n" ++
"mad r4.xy, c8.xy, r7.xy, v0.xy\n" ++
"texld r5, r4, s0\n" ++
"sub r2.xy, v0.xy, r5.xy\n" ++
"dp2add r2.z, r2, r2, c1.x\n" ++
@@ -598,7 +602,7 @@ const jfa_prop_src =
"cmp r8.xy, r3.x, r8.xy, r5.xy\n" ++
"cmp r9.x, r3.x, r9.x, r2.z\n" ++
// Neighbor (1, 1) via c9
"mad r4.xy, c9.xy, c0.xy, v0.xy\n" ++
"mad r4.xy, c9.xy, r7.xy, v0.xy\n" ++
"texld r5, r4, s0\n" ++
"sub r2.xy, v0.xy, r5.xy\n" ++
"dp2add r2.z, r2, r2, c1.x\n" ++