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silicon_sse: native calling conventions (thiscall/fastcall/stdcall) for all functions, ready for JMP patching

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This commit is contained in:
MarcelineVQ
2026-03-17 02:51:50 -07:00
parent 48e542dcf4
commit 6140a3a333
2 changed files with 43 additions and 39 deletions
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src/bench/main.zig
+20 -20
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@@ -31,28 +31,28 @@ extern fn calculatePlaneNormal(u32, u32, u32, u32) void;
extern fn transformAABox(u32, u32, u32, u32, u32) void;
// silicon_sse.zig exports
extern fn si_normalizeVec3(u32, u32) void;
extern fn si_mulMat3x4(u32, u32, u32) u32;
extern fn si_rotateMatByQuat(u32, u32) u32;
extern fn si_createRotMat3x4(u32, u32, u32, u32) u32;
extern fn si_normalizeVec3(u32, u32) callconv(cc_tc) void;
extern fn si_mulMat3x4(u32, u32, u32) callconv(cc_fc) u32;
extern fn si_rotateMatByQuat(u32, u32) callconv(cc_tc) u32;
extern fn si_createRotMat3x4(u32, u32, u32, u32) callconv(cc_fc) u32;
extern fn si_distanceToPlane() callconv(.naked) void; // naked: ECX=point, EDX=plane, stack=dir, returns ST(0), RET 4
extern fn si_classifyPointFrustum(u32, u32, u32) u32;
extern fn si_checkBoxLineIntersect(u32, u32, u32) u32;
extern fn si_testOBBFrustum(u32, u32, u32, u32) u32;
extern fn si_testSphereFrustum(u32, u32) u32;
extern fn si_quatSlerp(u32, u32, u32, u32) u32;
extern fn si_classifyPointFrustum(u32, u32, u32) callconv(cc_tc) u32;
extern fn si_checkBoxLineIntersect(u32, u32, u32) callconv(cc_fc) u32;
extern fn si_testOBBFrustum(u32, u32, u32, u32) callconv(cc_tc) u32;
extern fn si_testSphereFrustum(u32, u32) callconv(cc_tc) u32;
extern fn si_quatSlerp(u32, u32, u32, u32) callconv(cc_fc) u32;
extern fn si_isPointInsideBounds() callconv(.naked) void;
extern fn si_calculateSinCos(u32, u32, u32) void;
extern fn si_createZRotMat3x3(u32, u32) u32;
extern fn si_transposeMat4x4(u32, u32) u32;
extern fn si_mulMat3x4InPlace(u32, u32) u32;
extern fn si_normalizeVec3InPlace(u32) void;
extern fn si_calculateSinCos(u32, u32, u32) callconv(cc_sc) void;
extern fn si_createZRotMat3x3(u32, u32) callconv(cc_tc) u32;
extern fn si_transposeMat4x4(u32, u32) callconv(cc_tc) u32;
extern fn si_mulMat3x4InPlace(u32, u32) callconv(cc_tc) u32;
extern fn si_normalizeVec3InPlace(u32) callconv(cc_fc) void;
extern fn si_vec3Dot() callconv(.naked) void; // naked: ECX=a, EDX=b, returns ST(0)
extern fn si_translateBoundingVol(u32, u32) void;
extern fn si_addVec3ToAccumulator(u32, u32, u32) void;
extern fn si_addToColorAccumulator(u32, u32) void;
extern fn si_packParticleColor(u32, u32, u32, u32) void;
extern fn si_setParticleAlpha(u32, u32) void;
extern fn si_translateBoundingVol(u32, u32) callconv(cc_tc) void;
extern fn si_addVec3ToAccumulator(u32, u32, u32) callconv(cc_tc) void;
extern fn si_addToColorAccumulator(u32, u32) callconv(cc_tc) void;
extern fn si_packParticleColor(u32, u32, u32, u32) callconv(cc_fc) void;
extern fn si_setParticleAlpha(u32, u32) callconv(cc_fc) void;
extern fn si_ftol() callconv(.naked) void;
// =========================================================================
@@ -190,6 +190,7 @@ fn bench5(comptime func: anytype, args: anytype) u64 {
const cc_fc: std.builtin.CallingConvention = .{ .x86_fastcall = .{} };
const cc_tc: std.builtin.CallingConvention = .{ .x86_thiscall = .{} };
const cc_sc: std.builtin.CallingConvention = .{ .x86_stdcall = .{} };
const ITERS: u64 = 2_000_000;
@@ -804,7 +805,6 @@ pub fn main() void {
var cos_o: f32 = undefined;
var sin_s: f32 = undefined;
var cos_s: f32 = undefined;
const cc_sc: std.builtin.CallingConvention = .{ .x86_stdcall = .{} };
const of = origFn(fn (u32, u32, u32) callconv(cc_sc) void, 0x749280);
of(ab2, a(&sin_o), a(&cos_o));
si_calculateSinCos(ab2, a(&sin_s), a(&cos_s));