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shader quad control impl

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This commit is contained in:
CamilleLaVey 2026-07-31 23:06:39 -04:00
parent 6346371725
commit 76faac9252
17 changed files with 142 additions and 12 deletions
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18
src/shader_recompiler/backend/spirv/emit_spirv_warp.cpp
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@ -260,6 +260,24 @@ Id EmitShuffleButterfly(EmitContext& ctx, IR::Inst* inst, Id value, Id index, Id
return SelectValue(ctx, in_range, value, src_thread_id);
}
Id EmitQuadBroadcast(EmitContext& ctx, Id value, Id lane) {
if (ctx.profile.support_quad_shuffles) {
return ctx.OpGroupNonUniformQuadBroadcast(ctx.U32[1], SubgroupScope(ctx), value, lane);
}
const Id base{ctx.OpBitwiseAnd(ctx.U32[1], GetThreadId(ctx), ctx.Const(~3u))};
const Id local_lane{ctx.OpBitwiseAnd(ctx.U32[1], lane, ctx.Const(3u))};
const Id src_thread_id{ctx.OpBitwiseOr(ctx.U32[1], base, local_lane)};
return ctx.OpGroupNonUniformShuffle(ctx.U32[1], SubgroupScope(ctx), value, src_thread_id);
}
Id EmitQuadSwap(EmitContext& ctx, Id value, Id direction) {
if (ctx.profile.support_quad_shuffles) {
return ctx.OpGroupNonUniformQuadSwap(ctx.U32[1], SubgroupScope(ctx), value, direction);
}
const Id xor_mask{ctx.OpIAdd(ctx.U32[1], direction, ctx.Const(1u))};
return ctx.OpGroupNonUniformShuffleXor(ctx.U32[1], SubgroupScope(ctx), value, xor_mask);
}
Id EmitFSwizzleAdd(EmitContext& ctx, Id op_a, Id op_b, Id swizzle) {
const Id three{ctx.Const(3U)};
Id mask{GetThreadId(ctx)};