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shader_recompiler: Fix buffer type reading from step rate attribute. (#2973)

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squidbus 2025-05-22 03:03:24 -07:00 • committed by GitHub
parent 6935b24440
commit f4eb0b9b9e
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1 changed files with 12 additions and 7 deletions
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17
src/shader_recompiler/backend/spirv/emit_spirv_context_get_set.cpp
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@ -175,19 +175,24 @@ Id EmitReadConst(EmitContext& ctx, IR::Inst* inst) {
return ctx.OpLoad(ctx.U32[1], ptr);
}
Id EmitReadConstBuffer(EmitContext& ctx, u32 handle, Id index) {
template <BufferAlias alias>
Id ReadConstBuffer(EmitContext& ctx, u32 handle, Id index) {
const auto& buffer = ctx.buffers[handle];
index = ctx.OpIAdd(ctx.U32[1], index, buffer.offset_dwords);
const auto [id, pointer_type] = buffer[BufferAlias::U32];
const auto [id, pointer_type] = buffer[alias];
const auto value_type = alias == BufferAlias::U32 ? ctx.U32[1] : ctx.F32[1];
const Id ptr{ctx.OpAccessChain(pointer_type, id, ctx.u32_zero_value, index)};
const Id result{ctx.OpLoad(ctx.U32[1], ptr)};
const Id result{ctx.OpLoad(value_type, ptr)};
if (Sirit::ValidId(buffer.size_dwords)) {
const Id in_bounds = ctx.OpULessThan(ctx.U1[1], index, buffer.size_dwords);
return ctx.OpSelect(ctx.U32[1], in_bounds, result, ctx.u32_zero_value);
} else {
return ctx.OpSelect(value_type, in_bounds, result, ctx.u32_zero_value);
}
return result;
}
Id EmitReadConstBuffer(EmitContext& ctx, u32 handle, Id index) {
return ReadConstBuffer<BufferAlias::U32>(ctx, handle, index);
}
Id EmitReadStepRate(EmitContext& ctx, int rate_idx) {
@ -246,7 +251,7 @@ Id EmitGetAttribute(EmitContext& ctx, IR::Attribute attr, u32 comp, Id index) {
ctx.OpUDiv(ctx.U32[1], ctx.OpLoad(ctx.U32[1], ctx.instance_id), step_rate),
ctx.ConstU32(param.num_components)),
ctx.ConstU32(comp));
return EmitReadConstBuffer(ctx, param.buffer_handle, offset);
return ReadConstBuffer<BufferAlias::F32>(ctx, param.buffer_handle, offset);
}
Id result;