Vulkan: Add a workaround for input_position on Adreno drivers
Adreno drivers will crash compiling geometry shaders if the input position is not wrapped in a gl_in struct.
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@ -321,7 +321,10 @@ Id EmitGetAttribute(EmitContext& ctx, IR::Attribute attr, Id vertex) {
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case IR::Attribute::PositionY:
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case IR::Attribute::PositionZ:
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case IR::Attribute::PositionW:
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return ctx.OpLoad(ctx.F32[1], AttrPointer(ctx, ctx.input_f32, vertex, ctx.input_position,
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return ctx.OpLoad(ctx.F32[1], ctx.need_input_position_indirect ?
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AttrPointer(ctx, ctx.input_f32, vertex, ctx.input_position,
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ctx.u32_zero_value, ctx.Const(element))
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: AttrPointer(ctx, ctx.input_f32, vertex, ctx.input_position,
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ctx.Const(element)));
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case IR::Attribute::InstanceId:
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if (ctx.profile.support_vertex_instance_id) {
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@ -721,9 +721,21 @@ void EmitContext::DefineAttributeMemAccess(const Info& info) {
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size_t label_index{0};
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if (info.loads.AnyComponent(IR::Attribute::PositionX)) {
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AddLabel(labels[label_index]);
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const Id pointer{is_array
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? OpAccessChain(input_f32, input_position, vertex, masked_index)
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: OpAccessChain(input_f32, input_position, masked_index)};
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const Id pointer{[&]() {
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if (need_input_position_indirect) {
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if (is_array)
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return OpAccessChain(input_f32, input_position, vertex, u32_zero_value,
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masked_index);
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else
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return OpAccessChain(input_f32, input_position, u32_zero_value,
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masked_index);
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} else {
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if (is_array)
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return OpAccessChain(input_f32, input_position, vertex, masked_index);
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else
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return OpAccessChain(input_f32, input_position, masked_index);
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}
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}()};
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const Id result{OpLoad(F32[1], pointer)};
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OpReturnValue(result);
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++label_index;
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@ -1367,15 +1379,27 @@ void EmitContext::DefineInputs(const IR::Program& program) {
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Decorate(layer, spv::Decoration::Flat);
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}
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if (loads.AnyComponent(IR::Attribute::PositionX)) {
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const bool is_fragment{stage != Stage::Fragment};
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const spv::BuiltIn built_in{is_fragment ? spv::BuiltIn::Position : spv::BuiltIn::FragCoord};
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const bool is_fragment{stage == Stage::Fragment};
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if (!is_fragment && profile.has_broken_spirv_position_input) {
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need_input_position_indirect = true;
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const Id input_position_struct = TypeStruct(F32[4]);
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input_position = DefineInput(*this, input_position_struct, true);
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MemberDecorate(input_position_struct, 0, spv::Decoration::BuiltIn,
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static_cast<unsigned>(spv::BuiltIn::Position));
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Decorate(input_position_struct, spv::Decoration::Block);
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} else {
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const spv::BuiltIn built_in{is_fragment ? spv::BuiltIn::FragCoord : spv::BuiltIn::Position};
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input_position = DefineInput(*this, F32[4], true, built_in);
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if (profile.support_geometry_shader_passthrough) {
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if (info.passthrough.AnyComponent(IR::Attribute::PositionX)) {
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Decorate(input_position, spv::Decoration::PassthroughNV);
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}
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}
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}
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}
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if (loads[IR::Attribute::InstanceId]) {
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if (profile.support_vertex_instance_id) {
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instance_id = DefineInput(*this, U32[1], true, spv::BuiltIn::InstanceId);
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@ -280,6 +280,7 @@ public:
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Id write_global_func_u32x2{};
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Id write_global_func_u32x4{};
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bool need_input_position_indirect{};
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Id input_position{};
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std::array<Id, 32> input_generics{};
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@ -55,6 +55,8 @@ struct Profile {
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/// OpFClamp is broken and OpFMax + OpFMin should be used instead
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bool has_broken_spirv_clamp{};
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/// The Position builtin needs to be wrapped in a struct when used as an input
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bool has_broken_spirv_position_input{};
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/// Offset image operands with an unsigned type do not work
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bool has_broken_unsigned_image_offsets{};
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/// Signed instructions with unsigned data types are misinterpreted
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@ -331,6 +331,7 @@ PipelineCache::PipelineCache(RasterizerVulkan& rasterizer_, const Device& device
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.need_declared_frag_colors = false,
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.has_broken_spirv_clamp = driver_id == VK_DRIVER_ID_INTEL_PROPRIETARY_WINDOWS,
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.has_broken_spirv_position_input = driver_id == VK_DRIVER_ID_QUALCOMM_PROPRIETARY,
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.has_broken_unsigned_image_offsets = false,
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.has_broken_signed_operations = false,
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.has_broken_fp16_float_controls = driver_id == VK_DRIVER_ID_NVIDIA_PROPRIETARY,
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