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-rw-r--r--src/video_core/shader/const_buffer_locker.cpp17
-rw-r--r--src/video_core/shader/const_buffer_locker.h21
-rw-r--r--src/video_core/shader/decode.cpp68
-rw-r--r--src/video_core/shader/decode/texture.cpp110
-rw-r--r--src/video_core/shader/node.h87
-rw-r--r--src/video_core/shader/node_helper.h6
-rw-r--r--src/video_core/shader/shader_ir.cpp9
-rw-r--r--src/video_core/shader/shader_ir.h16
-rw-r--r--src/video_core/shader/track.cpp106
9 files changed, 397 insertions, 43 deletions
diff --git a/src/video_core/shader/const_buffer_locker.cpp b/src/video_core/shader/const_buffer_locker.cpp
index a4a0319eb..0638be8cb 100644
--- a/src/video_core/shader/const_buffer_locker.cpp
+++ b/src/video_core/shader/const_buffer_locker.cpp
@@ -66,6 +66,18 @@ std::optional<Tegra::Engines::SamplerDescriptor> ConstBufferLocker::ObtainBindle
return value;
}
+std::optional<u32> ConstBufferLocker::ObtainBoundBuffer() {
+ if (bound_buffer_saved) {
+ return bound_buffer;
+ }
+ if (!engine) {
+ return std::nullopt;
+ }
+ bound_buffer_saved = true;
+ bound_buffer = engine->GetBoundBuffer();
+ return bound_buffer;
+}
+
void ConstBufferLocker::InsertKey(u32 buffer, u32 offset, u32 value) {
keys.insert_or_assign({buffer, offset}, value);
}
@@ -78,6 +90,11 @@ void ConstBufferLocker::InsertBindlessSampler(u32 buffer, u32 offset, SamplerDes
bindless_samplers.insert_or_assign({buffer, offset}, sampler);
}
+void ConstBufferLocker::SetBoundBuffer(u32 buffer) {
+ bound_buffer_saved = true;
+ bound_buffer = buffer;
+}
+
bool ConstBufferLocker::IsConsistent() const {
if (!engine) {
return false;
diff --git a/src/video_core/shader/const_buffer_locker.h b/src/video_core/shader/const_buffer_locker.h
index d32e2d657..d3ea11087 100644
--- a/src/video_core/shader/const_buffer_locker.h
+++ b/src/video_core/shader/const_buffer_locker.h
@@ -10,6 +10,7 @@
#include "common/hash.h"
#include "video_core/engines/const_buffer_engine_interface.h"
#include "video_core/engines/shader_type.h"
+#include "video_core/guest_driver.h"
namespace VideoCommon::Shader {
@@ -40,6 +41,8 @@ public:
std::optional<Tegra::Engines::SamplerDescriptor> ObtainBindlessSampler(u32 buffer, u32 offset);
+ std::optional<u32> ObtainBoundBuffer();
+
/// Inserts a key.
void InsertKey(u32 buffer, u32 offset, u32 value);
@@ -49,6 +52,9 @@ public:
/// Inserts a bindless sampler key.
void InsertBindlessSampler(u32 buffer, u32 offset, Tegra::Engines::SamplerDescriptor sampler);
+ /// Set the bound buffer for this locker.
+ void SetBoundBuffer(u32 buffer);
+
/// Checks keys and samplers against engine's current const buffers. Returns true if they are
/// the same value, false otherwise;
bool IsConsistent() const;
@@ -71,12 +77,27 @@ public:
return bindless_samplers;
}
+ /// Gets bound buffer used on this shader
+ u32 GetBoundBuffer() const {
+ return bound_buffer;
+ }
+
+ /// Obtains access to the guest driver's profile.
+ VideoCore::GuestDriverProfile* AccessGuestDriverProfile() const {
+ if (engine) {
+ return &engine->AccessGuestDriverProfile();
+ }
+ return nullptr;
+ }
+
private:
const Tegra::Engines::ShaderType stage;
Tegra::Engines::ConstBufferEngineInterface* engine = nullptr;
KeyMap keys;
BoundSamplerMap bound_samplers;
BindlessSamplerMap bindless_samplers;
+ bool bound_buffer_saved{};
+ u32 bound_buffer{};
};
} // namespace VideoCommon::Shader
diff --git a/src/video_core/shader/decode.cpp b/src/video_core/shader/decode.cpp
index 22c3e5120..6b697ed5d 100644
--- a/src/video_core/shader/decode.cpp
+++ b/src/video_core/shader/decode.cpp
@@ -3,6 +3,7 @@
// Refer to the license.txt file included.
#include <cstring>
+#include <limits>
#include <set>
#include <fmt/format.h>
@@ -33,6 +34,52 @@ constexpr bool IsSchedInstruction(u32 offset, u32 main_offset) {
return (absolute_offset % SchedPeriod) == 0;
}
+void DeduceTextureHandlerSize(VideoCore::GuestDriverProfile* gpu_driver,
+ const std::list<Sampler>& used_samplers) {
+ if (gpu_driver == nullptr) {
+ LOG_CRITICAL(HW_GPU, "GPU driver profile has not been created yet");
+ return;
+ }
+ if (gpu_driver->TextureHandlerSizeKnown() || used_samplers.size() <= 1) {
+ return;
+ }
+ u32 count{};
+ std::vector<u32> bound_offsets;
+ for (const auto& sampler : used_samplers) {
+ if (sampler.IsBindless()) {
+ continue;
+ }
+ ++count;
+ bound_offsets.emplace_back(sampler.GetOffset());
+ }
+ if (count > 1) {
+ gpu_driver->DeduceTextureHandlerSize(std::move(bound_offsets));
+ }
+}
+
+std::optional<u32> TryDeduceSamplerSize(const Sampler& sampler_to_deduce,
+ VideoCore::GuestDriverProfile* gpu_driver,
+ const std::list<Sampler>& used_samplers) {
+ if (gpu_driver == nullptr) {
+ LOG_CRITICAL(HW_GPU, "GPU Driver profile has not been created yet");
+ return std::nullopt;
+ }
+ const u32 base_offset = sampler_to_deduce.GetOffset();
+ u32 max_offset{std::numeric_limits<u32>::max()};
+ for (const auto& sampler : used_samplers) {
+ if (sampler.IsBindless()) {
+ continue;
+ }
+ if (sampler.GetOffset() > base_offset) {
+ max_offset = std::min(sampler.GetOffset(), max_offset);
+ }
+ }
+ if (max_offset == std::numeric_limits<u32>::max()) {
+ return std::nullopt;
+ }
+ return ((max_offset - base_offset) * 4) / gpu_driver->GetTextureHandlerSize();
+}
+
} // Anonymous namespace
class ASTDecoder {
@@ -315,4 +362,25 @@ u32 ShaderIR::DecodeInstr(NodeBlock& bb, u32 pc) {
return pc + 1;
}
+void ShaderIR::PostDecode() {
+ // Deduce texture handler size if needed
+ auto gpu_driver = locker.AccessGuestDriverProfile();
+ DeduceTextureHandlerSize(gpu_driver, used_samplers);
+ // Deduce Indexed Samplers
+ if (!uses_indexed_samplers) {
+ return;
+ }
+ for (auto& sampler : used_samplers) {
+ if (!sampler.IsIndexed()) {
+ continue;
+ }
+ if (const auto size = TryDeduceSamplerSize(sampler, gpu_driver, used_samplers)) {
+ sampler.SetSize(*size);
+ } else {
+ LOG_CRITICAL(HW_GPU, "Failed to deduce size of indexed sampler");
+ sampler.SetSize(1);
+ }
+ }
+}
+
} // namespace VideoCommon::Shader
diff --git a/src/video_core/shader/decode/texture.cpp b/src/video_core/shader/decode/texture.cpp
index 0b567e39d..d980535b1 100644
--- a/src/video_core/shader/decode/texture.cpp
+++ b/src/video_core/shader/decode/texture.cpp
@@ -144,7 +144,8 @@ u32 ShaderIR::DecodeTexture(NodeBlock& bb, u32 pc) {
Node4 values;
for (u32 element = 0; element < values.size(); ++element) {
auto coords_copy = coords;
- MetaTexture meta{sampler, {}, depth_compare, aoffi, {}, {}, {}, {}, component, element};
+ MetaTexture meta{sampler, {}, depth_compare, aoffi, {}, {},
+ {}, {}, component, element, {}};
values[element] = Operation(OperationCode::TextureGather, meta, std::move(coords_copy));
}
@@ -167,9 +168,9 @@ u32 ShaderIR::DecodeTexture(NodeBlock& bb, u32 pc) {
const auto derivate_reg = instr.gpr20.Value();
const auto texture_type = instr.txd.texture_type.Value();
const auto coord_count = GetCoordCount(texture_type);
-
+ Node index_var{};
const Sampler* sampler =
- is_bindless ? GetBindlessSampler(base_reg, {{texture_type, is_array, false}})
+ is_bindless ? GetBindlessSampler(base_reg, index_var, {{texture_type, is_array, false}})
: GetSampler(instr.sampler, {{texture_type, is_array, false}});
Node4 values;
if (sampler == nullptr) {
@@ -200,7 +201,8 @@ u32 ShaderIR::DecodeTexture(NodeBlock& bb, u32 pc) {
}
for (u32 element = 0; element < values.size(); ++element) {
- MetaTexture meta{*sampler, array_node, {}, {}, {}, derivates, {}, {}, {}, element};
+ MetaTexture meta{*sampler, array_node, {}, {}, {}, derivates,
+ {}, {}, {}, element, index_var};
values[element] = Operation(OperationCode::TextureGradient, std::move(meta), coords);
}
@@ -215,8 +217,9 @@ u32 ShaderIR::DecodeTexture(NodeBlock& bb, u32 pc) {
// TODO: The new commits on the texture refactor, change the way samplers work.
// Sadly, not all texture instructions specify the type of texture their sampler
// uses. This must be fixed at a later instance.
+ Node index_var{};
const Sampler* sampler =
- is_bindless ? GetBindlessSampler(instr.gpr8) : GetSampler(instr.sampler);
+ is_bindless ? GetBindlessSampler(instr.gpr8, index_var) : GetSampler(instr.sampler);
if (sampler == nullptr) {
u32 indexer = 0;
@@ -240,7 +243,7 @@ u32 ShaderIR::DecodeTexture(NodeBlock& bb, u32 pc) {
if (!instr.txq.IsComponentEnabled(element)) {
continue;
}
- MetaTexture meta{*sampler, {}, {}, {}, {}, {}, {}, {}, {}, element};
+ MetaTexture meta{*sampler, {}, {}, {}, {}, {}, {}, {}, {}, element, index_var};
const Node value =
Operation(OperationCode::TextureQueryDimensions, meta,
GetRegister(instr.gpr8.Value() + (is_bindless ? 1 : 0)));
@@ -266,8 +269,9 @@ u32 ShaderIR::DecodeTexture(NodeBlock& bb, u32 pc) {
auto texture_type = instr.tmml.texture_type.Value();
const bool is_array = instr.tmml.array != 0;
+ Node index_var{};
const Sampler* sampler =
- is_bindless ? GetBindlessSampler(instr.gpr20) : GetSampler(instr.sampler);
+ is_bindless ? GetBindlessSampler(instr.gpr20, index_var) : GetSampler(instr.sampler);
if (sampler == nullptr) {
u32 indexer = 0;
@@ -309,7 +313,7 @@ u32 ShaderIR::DecodeTexture(NodeBlock& bb, u32 pc) {
continue;
}
auto params = coords;
- MetaTexture meta{*sampler, {}, {}, {}, {}, {}, {}, {}, {}, element};
+ MetaTexture meta{*sampler, {}, {}, {}, {}, {}, {}, {}, {}, element, index_var};
const Node value = Operation(OperationCode::TextureQueryLod, meta, std::move(params));
SetTemporary(bb, indexer++, value);
}
@@ -383,37 +387,65 @@ const Sampler* ShaderIR::GetSampler(const Tegra::Shader::Sampler& sampler,
// Otherwise create a new mapping for this sampler
const auto next_index = static_cast<u32>(used_samplers.size());
return &used_samplers.emplace_back(next_index, offset, info.type, info.is_array, info.is_shadow,
- info.is_buffer);
+ info.is_buffer, false);
}
-const Sampler* ShaderIR::GetBindlessSampler(Tegra::Shader::Register reg,
+const Sampler* ShaderIR::GetBindlessSampler(Tegra::Shader::Register reg, Node& index_var,
std::optional<SamplerInfo> sampler_info) {
const Node sampler_register = GetRegister(reg);
- const auto [base_sampler, buffer, offset] =
- TrackCbuf(sampler_register, global_code, static_cast<s64>(global_code.size()));
- ASSERT(base_sampler != nullptr);
- if (base_sampler == nullptr) {
+ const auto [base_node, tracked_sampler_info] =
+ TrackBindlessSampler(sampler_register, global_code, static_cast<s64>(global_code.size()));
+ ASSERT(base_node != nullptr);
+ if (base_node == nullptr) {
return nullptr;
}
- const auto info = GetSamplerInfo(sampler_info, offset, buffer);
+ if (const auto bindless_sampler_info =
+ std::get_if<BindlessSamplerNode>(&*tracked_sampler_info)) {
+ const u32 buffer = bindless_sampler_info->GetIndex();
+ const u32 offset = bindless_sampler_info->GetOffset();
+ const auto info = GetSamplerInfo(sampler_info, offset, buffer);
+
+ // If this sampler has already been used, return the existing mapping.
+ const auto it =
+ std::find_if(used_samplers.begin(), used_samplers.end(),
+ [buffer = buffer, offset = offset](const Sampler& entry) {
+ return entry.GetBuffer() == buffer && entry.GetOffset() == offset;
+ });
+ if (it != used_samplers.end()) {
+ ASSERT(it->IsBindless() && it->GetType() == info.type &&
+ it->IsArray() == info.is_array && it->IsShadow() == info.is_shadow);
+ return &*it;
+ }
- // If this sampler has already been used, return the existing mapping.
- const auto it =
- std::find_if(used_samplers.begin(), used_samplers.end(),
- [buffer = buffer, offset = offset](const Sampler& entry) {
- return entry.GetBuffer() == buffer && entry.GetOffset() == offset;
- });
- if (it != used_samplers.end()) {
- ASSERT(it->IsBindless() && it->GetType() == info.type && it->IsArray() == info.is_array &&
- it->IsShadow() == info.is_shadow);
- return &*it;
- }
+ // Otherwise create a new mapping for this sampler
+ const auto next_index = static_cast<u32>(used_samplers.size());
+ return &used_samplers.emplace_back(next_index, offset, buffer, info.type, info.is_array,
+ info.is_shadow, info.is_buffer, false);
+ } else if (const auto array_sampler_info =
+ std::get_if<ArraySamplerNode>(&*tracked_sampler_info)) {
+ const u32 base_offset = array_sampler_info->GetBaseOffset() / 4;
+ index_var = GetCustomVariable(array_sampler_info->GetIndexVar());
+ const auto info = GetSamplerInfo(sampler_info, base_offset);
+
+ // If this sampler has already been used, return the existing mapping.
+ const auto it = std::find_if(
+ used_samplers.begin(), used_samplers.end(),
+ [base_offset](const Sampler& entry) { return entry.GetOffset() == base_offset; });
+ if (it != used_samplers.end()) {
+ ASSERT(!it->IsBindless() && it->GetType() == info.type &&
+ it->IsArray() == info.is_array && it->IsShadow() == info.is_shadow &&
+ it->IsBuffer() == info.is_buffer && it->IsIndexed());
+ return &*it;
+ }
- // Otherwise create a new mapping for this sampler
- const auto next_index = static_cast<u32>(used_samplers.size());
- return &used_samplers.emplace_back(next_index, offset, buffer, info.type, info.is_array,
- info.is_shadow, info.is_buffer);
+ uses_indexed_samplers = true;
+ // Otherwise create a new mapping for this sampler
+ const auto next_index = static_cast<u32>(used_samplers.size());
+ return &used_samplers.emplace_back(next_index, base_offset, info.type, info.is_array,
+ info.is_shadow, info.is_buffer, true);
+ }
+ return nullptr;
}
void ShaderIR::WriteTexInstructionFloat(NodeBlock& bb, Instruction instr, const Node4& components) {
@@ -499,8 +531,9 @@ Node4 ShaderIR::GetTextureCode(Instruction instr, TextureType texture_type,
"This method is not supported.");
const SamplerInfo info{texture_type, is_array, is_shadow, false};
- const Sampler* sampler =
- is_bindless ? GetBindlessSampler(*bindless_reg, info) : GetSampler(instr.sampler, info);
+ Node index_var{};
+ const Sampler* sampler = is_bindless ? GetBindlessSampler(*bindless_reg, index_var, info)
+ : GetSampler(instr.sampler, info);
Node4 values;
if (sampler == nullptr) {
for (u32 element = 0; element < values.size(); ++element) {
@@ -548,7 +581,8 @@ Node4 ShaderIR::GetTextureCode(Instruction instr, TextureType texture_type,
for (u32 element = 0; element < values.size(); ++element) {
auto copy_coords = coords;
- MetaTexture meta{*sampler, array, depth_compare, aoffi, {}, {}, bias, lod, {}, element};
+ MetaTexture meta{*sampler, array, depth_compare, aoffi, {}, {}, bias,
+ lod, {}, element, index_var};
values[element] = Operation(read_method, meta, std::move(copy_coords));
}
@@ -663,7 +697,8 @@ Node4 ShaderIR::GetTld4Code(Instruction instr, TextureType texture_type, bool de
u64 parameter_register = instr.gpr20.Value();
const SamplerInfo info{texture_type, is_array, depth_compare, false};
- const Sampler* sampler = is_bindless ? GetBindlessSampler(parameter_register++, info)
+ Node index_var{};
+ const Sampler* sampler = is_bindless ? GetBindlessSampler(parameter_register++, index_var, info)
: GetSampler(instr.sampler, info);
Node4 values;
if (sampler == nullptr) {
@@ -692,7 +727,8 @@ Node4 ShaderIR::GetTld4Code(Instruction instr, TextureType texture_type, bool de
for (u32 element = 0; element < values.size(); ++element) {
auto coords_copy = coords;
MetaTexture meta{
- *sampler, GetRegister(array_register), dc, aoffi, ptp, {}, {}, {}, component, element};
+ *sampler, GetRegister(array_register), dc, aoffi, ptp, {}, {}, {}, component, element,
+ index_var};
values[element] = Operation(OperationCode::TextureGather, meta, std::move(coords_copy));
}
@@ -725,7 +761,7 @@ Node4 ShaderIR::GetTldCode(Tegra::Shader::Instruction instr) {
Node4 values;
for (u32 element = 0; element < values.size(); ++element) {
auto coords_copy = coords;
- MetaTexture meta{sampler, array_register, {}, {}, {}, {}, {}, lod, {}, element};
+ MetaTexture meta{sampler, array_register, {}, {}, {}, {}, {}, lod, {}, element, {}};
values[element] = Operation(OperationCode::TexelFetch, meta, std::move(coords_copy));
}
@@ -775,7 +811,7 @@ Node4 ShaderIR::GetTldsCode(Instruction instr, TextureType texture_type, bool is
Node4 values;
for (u32 element = 0; element < values.size(); ++element) {
auto coords_copy = coords;
- MetaTexture meta{sampler, array, {}, {}, {}, {}, {}, lod, {}, element};
+ MetaTexture meta{sampler, array, {}, {}, {}, {}, {}, lod, {}, element, {}};
values[element] = Operation(OperationCode::TexelFetch, meta, std::move(coords_copy));
}
return values;
diff --git a/src/video_core/shader/node.h b/src/video_core/shader/node.h
index 9af1f0228..5f83403db 100644
--- a/src/video_core/shader/node.h
+++ b/src/video_core/shader/node.h
@@ -212,6 +212,7 @@ enum class MetaStackClass {
class OperationNode;
class ConditionalNode;
class GprNode;
+class CustomVarNode;
class ImmediateNode;
class InternalFlagNode;
class PredicateNode;
@@ -223,26 +224,32 @@ class SmemNode;
class GmemNode;
class CommentNode;
-using NodeData = std::variant<OperationNode, ConditionalNode, GprNode, ImmediateNode,
+using NodeData = std::variant<OperationNode, ConditionalNode, GprNode, CustomVarNode, ImmediateNode,
InternalFlagNode, PredicateNode, AbufNode, PatchNode, CbufNode,
LmemNode, SmemNode, GmemNode, CommentNode>;
using Node = std::shared_ptr<NodeData>;
using Node4 = std::array<Node, 4>;
using NodeBlock = std::vector<Node>;
+class BindlessSamplerNode;
+class ArraySamplerNode;
+
+using TrackSamplerData = std::variant<BindlessSamplerNode, ArraySamplerNode>;
+using TrackSampler = std::shared_ptr<TrackSamplerData>;
+
class Sampler {
public:
/// This constructor is for bound samplers
constexpr explicit Sampler(u32 index, u32 offset, Tegra::Shader::TextureType type,
- bool is_array, bool is_shadow, bool is_buffer)
+ bool is_array, bool is_shadow, bool is_buffer, bool is_indexed)
: index{index}, offset{offset}, type{type}, is_array{is_array}, is_shadow{is_shadow},
- is_buffer{is_buffer} {}
+ is_buffer{is_buffer}, is_indexed{is_indexed} {}
/// This constructor is for bindless samplers
constexpr explicit Sampler(u32 index, u32 offset, u32 buffer, Tegra::Shader::TextureType type,
- bool is_array, bool is_shadow, bool is_buffer)
+ bool is_array, bool is_shadow, bool is_buffer, bool is_indexed)
: index{index}, offset{offset}, buffer{buffer}, type{type}, is_array{is_array},
- is_shadow{is_shadow}, is_buffer{is_buffer}, is_bindless{true} {}
+ is_shadow{is_shadow}, is_buffer{is_buffer}, is_bindless{true}, is_indexed{is_indexed} {}
constexpr u32 GetIndex() const {
return index;
@@ -276,16 +283,72 @@ public:
return is_bindless;
}
+ constexpr bool IsIndexed() const {
+ return is_indexed;
+ }
+
+ constexpr u32 Size() const {
+ return size;
+ }
+
+ constexpr void SetSize(u32 new_size) {
+ size = new_size;
+ }
+
private:
u32 index{}; ///< Emulated index given for the this sampler.
u32 offset{}; ///< Offset in the const buffer from where the sampler is being read.
u32 buffer{}; ///< Buffer where the bindless sampler is being read (unused on bound samplers).
+ u32 size{}; ///< Size of the sampler if indexed.
Tegra::Shader::TextureType type{}; ///< The type used to sample this texture (Texture2D, etc)
bool is_array{}; ///< Whether the texture is being sampled as an array texture or not.
bool is_shadow{}; ///< Whether the texture is being sampled as a depth texture or not.
bool is_buffer{}; ///< Whether the texture is a texture buffer without sampler.
bool is_bindless{}; ///< Whether this sampler belongs to a bindless texture or not.
+ bool is_indexed{}; ///< Whether this sampler is an indexed array of textures.
+};
+
+/// Represents a tracked bindless sampler into a direct const buffer
+class ArraySamplerNode final {
+public:
+ explicit ArraySamplerNode(u32 index, u32 base_offset, u32 bindless_var)
+ : index{index}, base_offset{base_offset}, bindless_var{bindless_var} {}
+
+ constexpr u32 GetIndex() const {
+ return index;
+ }
+
+ constexpr u32 GetBaseOffset() const {
+ return base_offset;
+ }
+
+ constexpr u32 GetIndexVar() const {
+ return bindless_var;
+ }
+
+private:
+ u32 index;
+ u32 base_offset;
+ u32 bindless_var;
+};
+
+/// Represents a tracked bindless sampler into a direct const buffer
+class BindlessSamplerNode final {
+public:
+ explicit BindlessSamplerNode(u32 index, u32 offset) : index{index}, offset{offset} {}
+
+ constexpr u32 GetIndex() const {
+ return index;
+ }
+
+ constexpr u32 GetOffset() const {
+ return offset;
+ }
+
+private:
+ u32 index;
+ u32 offset;
};
class Image final {
@@ -382,6 +445,7 @@ struct MetaTexture {
Node lod;
Node component{};
u32 element{};
+ Node index{};
};
struct MetaImage {
@@ -488,6 +552,19 @@ private:
Tegra::Shader::Register index{};
};
+/// A custom variable
+class CustomVarNode final {
+public:
+ explicit constexpr CustomVarNode(u32 index) : index{index} {}
+
+ constexpr u32 GetIndex() const {
+ return index;
+ }
+
+private:
+ u32 index{};
+};
+
/// A 32-bits value that represents an immediate value
class ImmediateNode final {
public:
diff --git a/src/video_core/shader/node_helper.h b/src/video_core/shader/node_helper.h
index 0c2aa749b..11231bbea 100644
--- a/src/video_core/shader/node_helper.h
+++ b/src/video_core/shader/node_helper.h
@@ -45,6 +45,12 @@ Node MakeNode(Args&&... args) {
return std::make_shared<NodeData>(T(std::forward<Args>(args)...));
}
+template <typename T, typename... Args>
+TrackSampler MakeTrackSampler(Args&&... args) {
+ static_assert(std::is_convertible_v<T, TrackSamplerData>);
+ return std::make_shared<TrackSamplerData>(T(std::forward<Args>(args)...));
+}
+
template <typename... Args>
Node Operation(OperationCode code, Args&&... args) {
if constexpr (sizeof...(args) == 0) {
diff --git a/src/video_core/shader/shader_ir.cpp b/src/video_core/shader/shader_ir.cpp
index 31eecb3f4..3a5d280a9 100644
--- a/src/video_core/shader/shader_ir.cpp
+++ b/src/video_core/shader/shader_ir.cpp
@@ -27,6 +27,7 @@ ShaderIR::ShaderIR(const ProgramCode& program_code, u32 main_offset, CompilerSet
ConstBufferLocker& locker)
: program_code{program_code}, main_offset{main_offset}, settings{settings}, locker{locker} {
Decode();
+ PostDecode();
}
ShaderIR::~ShaderIR() = default;
@@ -38,6 +39,10 @@ Node ShaderIR::GetRegister(Register reg) {
return MakeNode<GprNode>(reg);
}
+Node ShaderIR::GetCustomVariable(u32 id) {
+ return MakeNode<CustomVarNode>(id);
+}
+
Node ShaderIR::GetImmediate19(Instruction instr) {
return Immediate(instr.alu.GetImm20_19());
}
@@ -452,4 +457,8 @@ std::size_t ShaderIR::DeclareAmend(Node new_amend) {
return id;
}
+u32 ShaderIR::NewCustomVariable() {
+ return num_custom_variables++;
+}
+
} // namespace VideoCommon::Shader
diff --git a/src/video_core/shader/shader_ir.h b/src/video_core/shader/shader_ir.h
index ba1db4c11..b0851c3be 100644
--- a/src/video_core/shader/shader_ir.h
+++ b/src/video_core/shader/shader_ir.h
@@ -180,6 +180,10 @@ public:
return amend_code[index];
}
+ u32 GetNumCustomVariables() const {
+ return num_custom_variables;
+ }
+
private:
friend class ASTDecoder;
@@ -191,6 +195,7 @@ private:
};
void Decode();
+ void PostDecode();
NodeBlock DecodeRange(u32 begin, u32 end);
void DecodeRangeInner(NodeBlock& bb, u32 begin, u32 end);
@@ -235,6 +240,8 @@ private:
/// Generates a node for a passed register.
Node GetRegister(Tegra::Shader::Register reg);
+ /// Generates a node for a custom variable
+ Node GetCustomVariable(u32 id);
/// Generates a node representing a 19-bit immediate value
Node GetImmediate19(Tegra::Shader::Instruction instr);
/// Generates a node representing a 32-bit immediate value
@@ -321,7 +328,7 @@ private:
std::optional<SamplerInfo> sampler_info = std::nullopt);
/// Accesses a texture sampler for a bindless texture.
- const Sampler* GetBindlessSampler(Tegra::Shader::Register reg,
+ const Sampler* GetBindlessSampler(Tegra::Shader::Register reg, Node& index_var,
std::optional<SamplerInfo> sampler_info = std::nullopt);
/// Accesses an image.
@@ -387,6 +394,9 @@ private:
std::tuple<Node, u32, u32> TrackCbuf(Node tracked, const NodeBlock& code, s64 cursor) const;
+ std::tuple<Node, TrackSampler> TrackBindlessSampler(Node tracked, const NodeBlock& code,
+ s64 cursor);
+
std::optional<u32> TrackImmediate(Node tracked, const NodeBlock& code, s64 cursor) const;
std::pair<Node, s64> TrackRegister(const GprNode* tracked, const NodeBlock& code,
@@ -399,6 +409,8 @@ private:
/// Register new amending code and obtain the reference id.
std::size_t DeclareAmend(Node new_amend);
+ u32 NewCustomVariable();
+
const ProgramCode& program_code;
const u32 main_offset;
const CompilerSettings settings;
@@ -414,6 +426,7 @@ private:
NodeBlock global_code;
ASTManager program_manager{true, true};
std::vector<Node> amend_code;
+ u32 num_custom_variables{};
std::set<u32> used_registers;
std::set<Tegra::Shader::Pred> used_predicates;
@@ -431,6 +444,7 @@ private:
bool uses_instance_id{};
bool uses_vertex_id{};
bool uses_warps{};
+ bool uses_indexed_samplers{};
Tegra::Shader::Header header;
};
diff --git a/src/video_core/shader/track.cpp b/src/video_core/shader/track.cpp
index 165c79330..ea39bca54 100644
--- a/src/video_core/shader/track.cpp
+++ b/src/video_core/shader/track.cpp
@@ -8,6 +8,7 @@
#include "common/common_types.h"
#include "video_core/shader/node.h"
+#include "video_core/shader/node_helper.h"
#include "video_core/shader/shader_ir.h"
namespace VideoCommon::Shader {
@@ -35,8 +36,113 @@ std::pair<Node, s64> FindOperation(const NodeBlock& code, s64 cursor,
}
return {};
}
+
+std::optional<std::pair<Node, Node>> DecoupleIndirectRead(const OperationNode& operation) {
+ if (operation.GetCode() != OperationCode::UAdd) {
+ return std::nullopt;
+ }
+ Node gpr{};
+ Node offset{};
+ ASSERT(operation.GetOperandsCount() == 2);
+ for (std::size_t i = 0; i < operation.GetOperandsCount(); i++) {
+ Node operand = operation[i];
+ if (std::holds_alternative<ImmediateNode>(*operand)) {
+ offset = operation[i];
+ } else if (std::holds_alternative<GprNode>(*operand)) {
+ gpr = operation[i];
+ }
+ }
+ if (offset && gpr) {
+ return std::make_pair(gpr, offset);
+ }
+ return std::nullopt;
+}
+
+bool AmendNodeCv(std::size_t amend_index, Node node) {
+ if (const auto operation = std::get_if<OperationNode>(&*node)) {
+ operation->SetAmendIndex(amend_index);
+ return true;
+ } else if (const auto conditional = std::get_if<ConditionalNode>(&*node)) {
+ conditional->SetAmendIndex(amend_index);
+ return true;
+ }
+ return false;
+}
+
} // Anonymous namespace
+std::tuple<Node, TrackSampler> ShaderIR::TrackBindlessSampler(Node tracked, const NodeBlock& code,
+ s64 cursor) {
+ if (const auto cbuf = std::get_if<CbufNode>(&*tracked)) {
+ // Constant buffer found, test if it's an immediate
+ const auto offset = cbuf->GetOffset();
+ if (const auto immediate = std::get_if<ImmediateNode>(&*offset)) {
+ auto track =
+ MakeTrackSampler<BindlessSamplerNode>(cbuf->GetIndex(), immediate->GetValue());
+ return {tracked, track};
+ } else if (const auto operation = std::get_if<OperationNode>(&*offset)) {
+ auto bound_buffer = locker.ObtainBoundBuffer();
+ if (!bound_buffer) {
+ return {};
+ }
+ if (*bound_buffer != cbuf->GetIndex()) {
+ return {};
+ }
+ auto pair = DecoupleIndirectRead(*operation);
+ if (!pair) {
+ return {};
+ }
+ auto [gpr, base_offset] = *pair;
+ const auto offset_inm = std::get_if<ImmediateNode>(&*base_offset);
+ auto gpu_driver = locker.AccessGuestDriverProfile();
+ if (gpu_driver == nullptr) {
+ return {};
+ }
+ const u32 bindless_cv = NewCustomVariable();
+ const Node op = Operation(OperationCode::UDiv, NO_PRECISE, gpr,
+ Immediate(gpu_driver->GetTextureHandlerSize()));
+
+ const Node cv_node = GetCustomVariable(bindless_cv);
+ Node amend_op = Operation(OperationCode::Assign, cv_node, std::move(op));
+ const std::size_t amend_index = DeclareAmend(amend_op);
+ AmendNodeCv(amend_index, code[cursor]);
+ // TODO Implement Bindless Index custom variable
+ auto track = MakeTrackSampler<ArraySamplerNode>(cbuf->GetIndex(),
+ offset_inm->GetValue(), bindless_cv);
+ return {tracked, track};
+ }
+ return {};
+ }
+ if (const auto gpr = std::get_if<GprNode>(&*tracked)) {
+ if (gpr->GetIndex() == Tegra::Shader::Register::ZeroIndex) {
+ return {};
+ }
+ // Reduce the cursor in one to avoid infinite loops when the instruction sets the same
+ // register that it uses as operand
+ const auto [source, new_cursor] = TrackRegister(gpr, code, cursor - 1);
+ if (!source) {
+ return {};
+ }
+ return TrackBindlessSampler(source, code, new_cursor);
+ }
+ if (const auto operation = std::get_if<OperationNode>(&*tracked)) {
+ for (std::size_t i = operation->GetOperandsCount(); i > 0; --i) {
+ if (auto found = TrackBindlessSampler((*operation)[i - 1], code, cursor);
+ std::get<0>(found)) {
+ // Cbuf found in operand.
+ return found;
+ }
+ }
+ return {};
+ }
+ if (const auto conditional = std::get_if<ConditionalNode>(&*tracked)) {
+ const auto& conditional_code = conditional->GetCode();
+ return TrackBindlessSampler(tracked, conditional_code,
+ static_cast<s64>(conditional_code.size()));
+ }
+ return {};
+}
+
std::tuple<Node, u32, u32> ShaderIR::TrackCbuf(Node tracked, const NodeBlock& code,
s64 cursor) const {
if (const auto cbuf = std::get_if<CbufNode>(&*tracked)) {
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 00:27:21 +0000