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Merge pull request #7629 from ameerj/nv-driver-fixes

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shaders: Add fixes for NVIDIA drivers 495+
This commit is contained in:
Fernando S 2022-01-03 00:39:59 +01:00 committed by GitHub
commit ae7da0b12d
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GPG Key ID: 4AEE18F83AFDEB23
18 changed files with 140 additions and 30 deletions
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16
src/shader_recompiler/backend/glasm/emit_glasm_context_get_set.cpp
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@ -126,6 +126,22 @@ void EmitGetAttribute(EmitContext& ctx, IR::Inst& inst, IR::Attribute attr, Scal
}
}
void EmitGetAttributeU32(EmitContext& ctx, IR::Inst& inst, IR::Attribute attr, ScalarU32) {
switch (attr) {
case IR::Attribute::PrimitiveId:
ctx.Add("MOV.S {}.x,primitive.id;", inst);
break;
case IR::Attribute::InstanceId:
ctx.Add("MOV.S {}.x,{}.instance;", inst, ctx.attrib_name);
break;
case IR::Attribute::VertexId:
ctx.Add("MOV.S {}.x,{}.id;", inst, ctx.attrib_name);
break;
default:
throw NotImplementedException("Get U32 attribute {}", attr);
}
}
void EmitSetAttribute(EmitContext& ctx, IR::Attribute attr, ScalarF32 value,
[[maybe_unused]] ScalarU32 vertex) {
const u32 element{static_cast<u32>(attr) % 4};

1
src/shader_recompiler/backend/glasm/emit_glasm_instructions.h
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@ -50,6 +50,7 @@ void EmitGetCbufU32(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
void EmitGetCbufF32(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding, ScalarU32 offset);
void EmitGetCbufU32x2(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding, ScalarU32 offset);
void EmitGetAttribute(EmitContext& ctx, IR::Inst& inst, IR::Attribute attr, ScalarU32 vertex);
void EmitGetAttributeU32(EmitContext& ctx, IR::Inst& inst, IR::Attribute attr, ScalarU32 vertex);
void EmitSetAttribute(EmitContext& ctx, IR::Attribute attr, ScalarF32 value, ScalarU32 vertex);
void EmitGetAttributeIndexed(EmitContext& ctx, IR::Inst& inst, ScalarS32 offset, ScalarU32 vertex);
void EmitSetAttributeIndexed(EmitContext& ctx, ScalarU32 offset, ScalarF32 value, ScalarU32 vertex);

4
src/shader_recompiler/backend/glsl/emit_glsl_bitwise_conversion.cpp
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@ -7,6 +7,7 @@
#include "shader_recompiler/backend/glsl/emit_glsl_instructions.h"
#include "shader_recompiler/backend/glsl/glsl_emit_context.h"
#include "shader_recompiler/frontend/ir/value.h"
#include "shader_recompiler/profile.h"
namespace Shader::Backend::GLSL {
namespace {
@ -30,8 +31,9 @@ void EmitConditionRef(EmitContext& ctx, IR::Inst& inst, const IR::Value& value)
inst.DestructiveAddUsage(1);
const auto ret{ctx.var_alloc.Define(inst, GlslVarType::U1)};
const auto input{ctx.var_alloc.Consume(value)};
const auto suffix{ctx.profile.has_gl_bool_ref_bug ? "?true:false" : ""};
if (ret != input) {
ctx.Add("{}={};", ret, input);
ctx.Add("{}={}{};", ret, input, suffix);
}
}

51
src/shader_recompiler/backend/glsl/emit_glsl_context_get_set.cpp
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@ -102,39 +102,46 @@ void GetCbuf16(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding, const
void EmitGetCbufU8(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset) {
GetCbuf8(ctx, inst, binding, offset, "ftou");
const auto cast{ctx.profile.has_gl_cbuf_ftou_bug ? "" : "ftou"};
GetCbuf8(ctx, inst, binding, offset, cast);
}
void EmitGetCbufS8(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset) {
GetCbuf8(ctx, inst, binding, offset, "ftoi");
const auto cast{ctx.profile.has_gl_cbuf_ftou_bug ? "int" : "ftoi"};
GetCbuf8(ctx, inst, binding, offset, cast);
}
void EmitGetCbufU16(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset) {
GetCbuf16(ctx, inst, binding, offset, "ftou");
const auto cast{ctx.profile.has_gl_cbuf_ftou_bug ? "" : "ftou"};
GetCbuf16(ctx, inst, binding, offset, cast);
}
void EmitGetCbufS16(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset) {
GetCbuf16(ctx, inst, binding, offset, "ftoi");
const auto cast{ctx.profile.has_gl_cbuf_ftou_bug ? "int" : "ftoi"};
GetCbuf16(ctx, inst, binding, offset, cast);
}
void EmitGetCbufU32(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset) {
const auto ret{ctx.var_alloc.Define(inst, GlslVarType::U32)};
GetCbuf(ctx, ret, binding, offset, 32, "ftou");
const auto cast{ctx.profile.has_gl_cbuf_ftou_bug ? "" : "ftou"};
GetCbuf(ctx, ret, binding, offset, 32, cast);
}
void EmitGetCbufF32(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset) {
const auto ret{ctx.var_alloc.Define(inst, GlslVarType::F32)};
GetCbuf(ctx, ret, binding, offset, 32);
const auto cast{ctx.profile.has_gl_cbuf_ftou_bug ? "utof" : ""};
GetCbuf(ctx, ret, binding, offset, 32, cast);
}
void EmitGetCbufU32x2(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding,
const IR::Value& offset) {
const auto cbuf{fmt::format("{}_cbuf{}", ctx.stage_name, binding.U32())};
const auto cast{ctx.profile.has_gl_cbuf_ftou_bug ? "" : "ftou"};
if (offset.IsImmediate()) {
static constexpr u32 cbuf_size{0x10000};
const u32 u32_offset{offset.U32()};
@ -145,26 +152,26 @@ void EmitGetCbufU32x2(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding
return;
}
if (u32_offset % 2 == 0) {
ctx.AddU32x2("{}=ftou({}[{}].{}{});", inst, cbuf, u32_offset / 16,
ctx.AddU32x2("{}={}({}[{}].{}{});", inst, cast, cbuf, u32_offset / 16,
OffsetSwizzle(u32_offset), OffsetSwizzle(u32_offset + 4));
} else {
ctx.AddU32x2("{}=uvec2(ftou({}[{}].{}),ftou({}[{}].{}));", inst, cbuf, u32_offset / 16,
OffsetSwizzle(u32_offset), cbuf, (u32_offset + 4) / 16,
OffsetSwizzle(u32_offset + 4));
ctx.AddU32x2("{}=uvec2({}({}[{}].{}),{}({}[{}].{}));", inst, cast, cbuf,
u32_offset / 16, OffsetSwizzle(u32_offset), cast, cbuf,
(u32_offset + 4) / 16, OffsetSwizzle(u32_offset + 4));
}
return;
}
const auto offset_var{ctx.var_alloc.Consume(offset)};
if (!ctx.profile.has_gl_component_indexing_bug) {
ctx.AddU32x2("{}=uvec2(ftou({}[{}>>4][({}>>2)%4]),ftou({}[({}+4)>>4][(({}+4)>>2)%4]));",
inst, cbuf, offset_var, offset_var, cbuf, offset_var, offset_var);
ctx.AddU32x2("{}=uvec2({}({}[{}>>4][({}>>2)%4]),{}({}[({}+4)>>4][(({}+4)>>2)%4]));", inst,
cast, cbuf, offset_var, offset_var, cast, cbuf, offset_var, offset_var);
return;
}
const auto ret{ctx.var_alloc.Define(inst, GlslVarType::U32x2)};
const auto cbuf_offset{fmt::format("{}>>2", offset_var)};
for (u32 swizzle = 0; swizzle < 4; ++swizzle) {
ctx.Add("if(({}&3)=={}){}=uvec2(ftou({}[{}>>4].{}),ftou({}[({}+4)>>4].{}));", cbuf_offset,
swizzle, ret, cbuf, offset_var, "xyzw"[swizzle], cbuf, offset_var,
ctx.Add("if(({}&3)=={}){}=uvec2({}({}[{}>>4].{}),{}({}[({}+4)>>4].{}));", cbuf_offset,
swizzle, ret, cast, cbuf, offset_var, "xyzw"[swizzle], cast, cbuf, offset_var,
"xyzw"[(swizzle + 1) % 4]);
}
}
@ -221,6 +228,22 @@ void EmitGetAttribute(EmitContext& ctx, IR::Inst& inst, IR::Attribute attr,
}
}
void EmitGetAttributeU32(EmitContext& ctx, IR::Inst& inst, IR::Attribute attr, std::string_view) {
switch (attr) {
case IR::Attribute::PrimitiveId:
ctx.AddU32("{}=uint(gl_PrimitiveID);", inst);
break;
case IR::Attribute::InstanceId:
ctx.AddU32("{}=uint(gl_InstanceID);", inst);
break;
case IR::Attribute::VertexId:
ctx.AddU32("{}=uint(gl_VertexID);", inst);
break;
default:
throw NotImplementedException("Get U32 attribute {}", attr);
}
}
void EmitSetAttribute(EmitContext& ctx, IR::Attribute attr, std::string_view value,
[[maybe_unused]] std::string_view vertex) {
if (IR::IsGeneric(attr)) {

4
src/shader_recompiler/backend/glsl/emit_glsl_floating_point.cpp
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@ -125,11 +125,11 @@ void EmitFPNeg16([[maybe_unused]] EmitContext& ctx, [[maybe_unused]] IR::Inst& i
}
void EmitFPNeg32(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
ctx.AddF32("{}=-({});", inst, value);
ctx.AddF32("{}=0.f-({});", inst, value);
}
void EmitFPNeg64(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
ctx.AddF64("{}=-({});", inst, value);
ctx.AddF64("{}=double(0.)-({});", inst, value);
}
void EmitFPSin(EmitContext& ctx, IR::Inst& inst, std::string_view value) {

2
src/shader_recompiler/backend/glsl/emit_glsl_instructions.h
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@ -60,6 +60,8 @@ void EmitGetCbufU32x2(EmitContext& ctx, IR::Inst& inst, const IR::Value& binding
const IR::Value& offset);
void EmitGetAttribute(EmitContext& ctx, IR::Inst& inst, IR::Attribute attr,
std::string_view vertex);
void EmitGetAttributeU32(EmitContext& ctx, IR::Inst& inst, IR::Attribute attr,
std::string_view vertex);
void EmitSetAttribute(EmitContext& ctx, IR::Attribute attr, std::string_view value,
std::string_view vertex);
void EmitGetAttributeIndexed(EmitContext& ctx, IR::Inst& inst, std::string_view offset,

4
src/shader_recompiler/backend/glsl/emit_glsl_integer.cpp
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@ -87,11 +87,11 @@ void EmitUDiv32(EmitContext& ctx, IR::Inst& inst, std::string_view a, std::strin
}
void EmitINeg32(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
ctx.AddU32("{}=uint(-({}));", inst, value);
ctx.AddU32("{}=uint(int(0)-int({}));", inst, value);
}
void EmitINeg64(EmitContext& ctx, IR::Inst& inst, std::string_view value) {
ctx.AddU64("{}=-({});", inst, value);
ctx.AddU64("{}=uint64_t(int64_t(0)-int64_t({}));", inst, value);
}
void EmitIAbs32(EmitContext& ctx, IR::Inst& inst, std::string_view value) {

4
src/shader_recompiler/backend/glsl/emit_glsl_special.cpp
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@ -90,7 +90,9 @@ void EmitPhiMove(EmitContext& ctx, const IR::Value& phi_value, const IR::Value&
if (phi_reg == val_reg) {
return;
}
ctx.Add("{}={};", phi_reg, val_reg);
const bool needs_workaround{ctx.profile.has_gl_bool_ref_bug && phi_type == IR::Type::U1};
const auto suffix{needs_workaround ? "?true:false" : ""};
ctx.Add("{}={}{};", phi_reg, val_reg, suffix);
}
void EmitPrologue(EmitContext& ctx) {

7
src/shader_recompiler/backend/glsl/glsl_emit_context.cpp
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@ -428,9 +428,10 @@ void EmitContext::DefineConstantBuffers(Bindings& bindings) {
return;
}
for (const auto& desc : info.constant_buffer_descriptors) {
header += fmt::format(
"layout(std140,binding={}) uniform {}_cbuf_{}{{vec4 {}_cbuf{}[{}];}};",
bindings.uniform_buffer, stage_name, desc.index, stage_name, desc.index, 4 * 1024);
const auto cbuf_type{profile.has_gl_cbuf_ftou_bug ? "uvec4" : "vec4"};
header += fmt::format("layout(std140,binding={}) uniform {}_cbuf_{}{{{} {}_cbuf{}[{}];}};",
bindings.uniform_buffer, stage_name, desc.index, cbuf_type,
stage_name, desc.index, 4 * 1024);
bindings.uniform_buffer += desc.count;
}
}

25
src/shader_recompiler/backend/spirv/emit_spirv_context_get_set.cpp
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@ -355,6 +355,31 @@ Id EmitGetAttribute(EmitContext& ctx, IR::Attribute attr, Id vertex) {
}
}
Id EmitGetAttributeU32(EmitContext& ctx, IR::Attribute attr, Id) {
switch (attr) {
case IR::Attribute::PrimitiveId:
return ctx.OpLoad(ctx.U32[1], ctx.primitive_id);
case IR::Attribute::InstanceId:
if (ctx.profile.support_vertex_instance_id) {
return ctx.OpLoad(ctx.U32[1], ctx.instance_id);
} else {
const Id index{ctx.OpLoad(ctx.U32[1], ctx.instance_index)};
const Id base{ctx.OpLoad(ctx.U32[1], ctx.base_instance)};
return ctx.OpISub(ctx.U32[1], index, base);
}
case IR::Attribute::VertexId:
if (ctx.profile.support_vertex_instance_id) {
return ctx.OpLoad(ctx.U32[1], ctx.vertex_id);
} else {
const Id index{ctx.OpLoad(ctx.U32[1], ctx.vertex_index)};
const Id base{ctx.OpLoad(ctx.U32[1], ctx.base_vertex)};
return ctx.OpISub(ctx.U32[1], index, base);
}
default:
throw NotImplementedException("Read U32 attribute {}", attr);
}
}
void EmitSetAttribute(EmitContext& ctx, IR::Attribute attr, Id value, [[maybe_unused]] Id vertex) {
const std::optional<OutAttr> output{OutputAttrPointer(ctx, attr)};
if (!output) {

1
src/shader_recompiler/backend/spirv/emit_spirv_instructions.h
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@ -53,6 +53,7 @@ Id EmitGetCbufU32(EmitContext& ctx, const IR::Value& binding, const IR::Value& o
Id EmitGetCbufF32(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset);
Id EmitGetCbufU32x2(EmitContext& ctx, const IR::Value& binding, const IR::Value& offset);
Id EmitGetAttribute(EmitContext& ctx, IR::Attribute attr, Id vertex);
Id EmitGetAttributeU32(EmitContext& ctx, IR::Attribute attr, Id vertex);
void EmitSetAttribute(EmitContext& ctx, IR::Attribute attr, Id value, Id vertex);
Id EmitGetAttributeIndexed(EmitContext& ctx, Id offset, Id vertex);
void EmitSetAttributeIndexed(EmitContext& ctx, Id offset, Id value, Id vertex);

1
src/shader_recompiler/frontend/ir/opcodes.inc
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@ -40,6 +40,7 @@ OPCODE(GetCbufU32, U32, U32,
OPCODE(GetCbufF32, F32, U32, U32, )
OPCODE(GetCbufU32x2, U32x2, U32, U32, )
OPCODE(GetAttribute, F32, Attribute, U32, )
OPCODE(GetAttributeU32, U32, Attribute, U32, )
OPCODE(SetAttribute, Void, Attribute, F32, U32, )
OPCODE(GetAttributeIndexed, F32, U32, U32, )
OPCODE(SetAttributeIndexed, Void, U32, F32, U32, )

1
src/shader_recompiler/ir_opt/collect_shader_info_pass.cpp
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@ -389,6 +389,7 @@ void VisitUsages(Info& info, IR::Inst& inst) {
info.uses_demote_to_helper_invocation = true;
break;
case IR::Opcode::GetAttribute:
case IR::Opcode::GetAttributeU32:
info.loads.mask[static_cast<size_t>(inst.Arg(0).Attribute())] = true;
break;
case IR::Opcode::SetAttribute:

23
src/shader_recompiler/ir_opt/constant_propagation_pass.cpp
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@ -505,6 +505,29 @@ void FoldBitCast(IR::Inst& inst, IR::Opcode reverse) {
return;
}
}
if constexpr (op == IR::Opcode::BitCastU32F32) {
// Workaround for new NVIDIA driver bug, where:
// uint attr = ftou(itof(gl_InstanceID));
// always returned 0.
// We can instead manually optimize this and work around the driver bug:
// uint attr = uint(gl_InstanceID);
if (arg_inst->GetOpcode() == IR::Opcode::GetAttribute) {
const IR::Attribute attr{arg_inst->Arg(0).Attribute()};
switch (attr) {
case IR::Attribute::PrimitiveId:
case IR::Attribute::InstanceId:
case IR::Attribute::VertexId:
break;
default:
return;
}
// Replace the bitcasts with an integer attribute get
inst.ReplaceOpcode(IR::Opcode::GetAttributeU32);
inst.SetArg(0, arg_inst->Arg(0));
inst.SetArg(1, arg_inst->Arg(1));
return;
}
}
}
void FoldInverseFunc(IR::Inst& inst, IR::Opcode reverse) {

4
src/shader_recompiler/profile.h
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@ -65,6 +65,10 @@ struct Profile {
bool has_gl_component_indexing_bug{};
/// The precise type qualifier is broken in the fragment stage of some drivers
bool has_gl_precise_bug{};
/// Some drivers do not properly support floatBitsToUint when used on cbufs
bool has_gl_cbuf_ftou_bug{};
/// Some drivers poorly optimize boolean variable references
bool has_gl_bool_ref_bug{};
/// Ignores SPIR-V ordered vs unordered using GLSL semantics
bool ignore_nan_fp_comparisons{};

10
src/video_core/renderer_opengl/gl_device.cpp
View File

@ -182,17 +182,13 @@ Device::Device() {
shader_backend = Settings::ShaderBackend::GLSL;
}
if (shader_backend == Settings::ShaderBackend::GLSL && is_nvidia &&
!Settings::values.renderer_debug) {
if (shader_backend == Settings::ShaderBackend::GLSL && is_nvidia) {
const std::string_view driver_version = version.substr(13);
const int version_major =
std::atoi(driver_version.substr(0, driver_version.find(".")).data());
if (version_major >= 495) {
LOG_WARNING(Render_OpenGL, "NVIDIA drivers 495 and later causes significant problems "
"with yuzu. Forcing GLASM as a mitigation.");
shader_backend = Settings::ShaderBackend::GLASM;
use_assembly_shaders = true;
has_cbuf_ftou_bug = true;
has_bool_ref_bug = true;
}
}

10
src/video_core/renderer_opengl/gl_device.h
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@ -152,6 +152,14 @@ public:
return need_fastmath_off;
}
bool HasCbufFtouBug() const {
return has_cbuf_ftou_bug;
}
bool HasBoolRefBug() const {
return has_bool_ref_bug;
}
Settings::ShaderBackend GetShaderBackend() const {
return shader_backend;
}
@ -200,6 +208,8 @@ private:
bool has_sparse_texture_2{};
bool warp_size_potentially_larger_than_guest{};
bool need_fastmath_off{};
bool has_cbuf_ftou_bug{};
bool has_bool_ref_bug{};
std::string vendor_name;
};

2
src/video_core/renderer_opengl/gl_shader_cache.cpp
View File

@ -214,6 +214,8 @@ ShaderCache::ShaderCache(RasterizerOpenGL& rasterizer_, Core::Frontend::EmuWindo
.has_broken_fp16_float_controls = false,
.has_gl_component_indexing_bug = device.HasComponentIndexingBug(),
.has_gl_precise_bug = device.HasPreciseBug(),
.has_gl_cbuf_ftou_bug = device.HasCbufFtouBug(),
.has_gl_bool_ref_bug = device.HasBoolRefBug(),
.ignore_nan_fp_comparisons = true,
.gl_max_compute_smem_size = device.GetMaxComputeSharedMemorySize(),
},