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silicon: naked asm for transpose/setAlpha/addColor/normalize, remove vec3Dot/distPlane/insideBounds from patches, direct patch transpose (7cy, 3.7x)

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MarcelineVQ
2026-03-17 03:52:50 -07:00
parent 3dfa559eac
commit dc37042e6a
3 changed files with 90 additions and 53 deletions
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src/silicon/silicon.zig
+4 -4
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@@ -2103,16 +2103,16 @@ fn getPatchTable() []const PatchEntry {
.{ .target = 0x7BAE60, .replacement = @intFromPtr(&sse.si_mulMat3x4), .name = "mulMat3x4" },
.{ .target = 0x7BDDB0, .replacement = @intFromPtr(&sse.si_rotateMatByQuat), .name = "rotateMatByQuat" },
.{ .target = 0x7BB860, .replacement = @intFromPtr(&sse.si_createRotMat3x4), .name = "createRotMat3x4" },
.{ .target = 0x6329E0, .replacement = @intFromPtr(&sse.si_distanceToPlane), .name = "distanceToPlane" },
// distanceToPlane (0x6329E0): removed — at parity, division dominates both versions
.{ .target = 0x686C20, .replacement = @intFromPtr(&sse.si_classifyPointFrustum), .name = "classifyPointFrustum" },
.{ .target = 0x6DC5A0, .replacement = @intFromPtr(&sse.si_checkBoxLineIntersect), .name = "checkBoxLineIntersect" },
.{ .target = 0x6869C0, .replacement = @intFromPtr(&sse.si_testOBBFrustum), .name = "testOBBFrustum" },
.{ .target = 0x686B80, .replacement = @intFromPtr(&sse.si_testSphereFrustum), .name = "testSphereFrustum" },
.{ .target = 0x7C0570, .replacement = @intFromPtr(&sse.si_quatSlerp), .name = "quatSlerp" },
.{ .target = 0x699330, .replacement = @intFromPtr(&sse.si_isPointInsideBounds), .name = "isPointInsideBounds" },
// isPointInsideBounds (0x699330): removed — at parity, not worth patching
.{ .target = 0x749280, .replacement = @intFromPtr(&sse.si_calculateSinCos), .name = "calculateSinCos" },
.{ .target = 0x7BE5B0, .replacement = @intFromPtr(&sse.si_createZRotMat3x3), .name = "createZRotMat3x3" },
.{ .target = 0x7BCEF0, .replacement = @intFromPtr(&sse.si_transposeMat4x4), .name = "transposeMat4x4" },
.{ .target = 0x7BCEF0, .replacement = @intFromPtr(&sse.si_transposeMat4x4), .name = "transposeMat4x4", .direct_size = 64 },
.{ .target = 0x7BB420, .replacement = @intFromPtr(&sse.si_mulMat3x4InPlace), .name = "mulMat3x4InPlace" },
.{ .target = 0x6720F0, .replacement = @intFromPtr(&sse.si_normalizeVec3InPlace), .name = "normalizeVec3InPlace" },
.{ .target = 0x71BC70, .replacement = @intFromPtr(&sse.si_addVec3ToAccumulator), .name = "addVec3ToAccumulator" },
@@ -2120,7 +2120,7 @@ fn getPatchTable() []const PatchEntry {
.{ .target = 0x7B7A80, .replacement = @intFromPtr(&sse.si_packParticleColor), .name = "packParticleColor" },
.{ .target = 0x7B7B10, .replacement = @intFromPtr(&sse.si_setParticleAlpha), .name = "setParticleAlpha" },
.{ .target = 0x40A2B0, .replacement = @intFromPtr(&sse.si_ftol), .name = "__ftol", .direct_size = 9 },
.{ .target = 0x602630, .replacement = @intFromPtr(&sse.si_vec3Dot), .name = "vec3Dot" },
// vec3Dot (0x602630): removed — 0.6x regression, x87 is optimal for this ABI
.{ .target = 0x686820, .replacement = @intFromPtr(&sse.si_translateBoundingVol), .name = "translateBoundingVol" },
};
return &table;