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shader/node: Minor changes 

Reflect std::shared_ptr nature of Node on initializers and remove
constant members in nodes.

Add some commentaries.
This commit is contained in:
ReinUsesLisp 2019-06-06 20:01:28 -03:00
parent e1b3be7ced
commit 769a50661a
1 changed files with 54 additions and 50 deletions
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104
src/video_core/shader/node.h
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@ -18,25 +18,6 @@
namespace VideoCommon::Shader {
class OperationNode;
class ConditionalNode;
class GprNode;
class ImmediateNode;
class InternalFlagNode;
class PredicateNode;
class AbufNode; ///< Attribute buffer
class CbufNode; ///< Constant buffer
class LmemNode; ///< Local memory
class GmemNode; ///< Global memory
class CommentNode;
using NodeData =
std::variant<OperationNode, ConditionalNode, GprNode, ImmediateNode, InternalFlagNode,
PredicateNode, AbufNode, CbufNode, LmemNode, GmemNode, CommentNode>;
using Node = std::shared_ptr<NodeData>;
using Node4 = std::array<Node, 4>;
using NodeBlock = std::vector<Node>;
enum class OperationCode {
Assign, /// (float& dest, float src) -> void
@ -193,21 +174,40 @@ enum class InternalFlag {
Amount = 4,
};
class OperationNode;
class ConditionalNode;
class GprNode;
class ImmediateNode;
class InternalFlagNode;
class PredicateNode;
class AbufNode;
class CbufNode;
class LmemNode;
class GmemNode;
class CommentNode;
using NodeData =
std::variant<OperationNode, ConditionalNode, GprNode, ImmediateNode, InternalFlagNode,
PredicateNode, AbufNode, CbufNode, LmemNode, GmemNode, CommentNode>;
using Node = std::shared_ptr<NodeData>;
using Node4 = std::array<Node, 4>;
using NodeBlock = std::vector<Node>;
class Sampler {
public:
// Use this constructor for bounded Samplers
/// This constructor is for bound samplers
explicit Sampler(std::size_t offset, std::size_t index, Tegra::Shader::TextureType type,
bool is_array, bool is_shadow)
: offset{offset}, index{index}, type{type}, is_array{is_array}, is_shadow{is_shadow},
is_bindless{false} {}
// Use this constructor for bindless Samplers
/// This constructor is for bindless samplers
explicit Sampler(u32 cbuf_index, u32 cbuf_offset, std::size_t index,
Tegra::Shader::TextureType type, bool is_array, bool is_shadow)
: offset{(static_cast<u64>(cbuf_index) << 32) | cbuf_offset}, index{index}, type{type},
is_array{is_array}, is_shadow{is_shadow}, is_bindless{true} {}
// Use this only for serialization/deserialization
/// This constructor is for serialization/deserialization
explicit Sampler(std::size_t offset, std::size_t index, Tegra::Shader::TextureType type,
bool is_array, bool is_shadow, bool is_bindless)
: offset{offset}, index{index}, type{type}, is_array{is_array}, is_shadow{is_shadow},
@ -267,21 +267,24 @@ struct GlobalMemoryBase {
}
};
/// Parameters describing an arithmetic operation
struct MetaArithmetic {
bool precise{};
bool precise{}; ///< Whether the operation can be constraint or not
};
/// Parameters describing a texture sampler
struct MetaTexture {
const Sampler& sampler;
Node array{};
Node depth_compare{};
Node array;
Node depth_compare;
std::vector<Node> aoffi;
Node bias{};
Node lod{};
Node bias;
Node lod;
Node component{};
u32 element{};
};
/// Parameters that modify an operation but are not part of any particular operand
using Meta = std::variant<MetaArithmetic, MetaTexture, Tegra::Shader::HalfType>;
/// Holds any kind of operation that can be done in the IR
@ -328,9 +331,9 @@ private:
class ConditionalNode final {
public:
explicit ConditionalNode(Node condition, std::vector<Node>&& code)
: condition{condition}, code{std::move(code)} {}
: condition{std::move(condition)}, code{std::move(code)} {}
Node GetCondition() const {
const Node& GetCondition() const {
return condition;
}
@ -339,7 +342,7 @@ public:
}
private:
const Node condition; ///< Condition to be satisfied
Node condition; ///< Condition to be satisfied
std::vector<Node> code; ///< Code to execute
};
@ -353,7 +356,7 @@ public:
}
private:
const Tegra::Shader::Register index;
Tegra::Shader::Register index{};
};
/// A 32-bits value that represents an immediate value
@ -366,7 +369,7 @@ public:
}
private:
const u32 value;
u32 value{};
};
/// One of Maxwell's internal flags
@ -379,7 +382,7 @@ public:
}
private:
const InternalFlag flag;
InternalFlag flag{};
};
/// A predicate register, it can be negated without additional nodes
@ -397,8 +400,8 @@ public:
}
private:
const Tegra::Shader::Pred index;
const bool negated;
Tegra::Shader::Pred index{};
bool negated{};
};
/// Attribute buffer memory (known as attributes or varyings in GLSL terms)
@ -410,7 +413,7 @@ public:
// Initialize for physical attributes (index is a variable value).
explicit AbufNode(Node physical_address, Node buffer = {})
: physical_address{physical_address}, buffer{std::move(buffer)} {}
: physical_address{std::move(physical_address)}, buffer{std::move(buffer)} {}
Tegra::Shader::Attribute::Index GetIndex() const {
return index;
@ -420,7 +423,7 @@ public:
return element;
}
Node GetBuffer() const {
const Node& GetBuffer() const {
return buffer;
}
@ -442,45 +445,46 @@ private:
/// Constant buffer node, usually mapped to uniform buffers in GLSL
class CbufNode final {
public:
explicit CbufNode(u32 index, Node offset) : index{index}, offset{offset} {}
explicit CbufNode(u32 index, Node offset) : index{index}, offset{std::move(offset)} {}
u32 GetIndex() const {
return index;
}
Node GetOffset() const {
const Node& GetOffset() const {
return offset;
}
private:
const u32 index;
const Node offset;
u32 index{};
Node offset;
};
/// Local memory node
class LmemNode final {
public:
explicit LmemNode(Node address) : address{address} {}
explicit LmemNode(Node address) : address{std::move(address)} {}
Node GetAddress() const {
const Node& GetAddress() const {
return address;
}
private:
const Node address;
Node address;
};
/// Global memory node
class GmemNode final {
public:
explicit GmemNode(Node real_address, Node base_address, const GlobalMemoryBase& descriptor)
: real_address{real_address}, base_address{base_address}, descriptor{descriptor} {}
: real_address{std::move(real_address)}, base_address{std::move(base_address)},
descriptor{descriptor} {}
Node GetRealAddress() const {
const Node& GetRealAddress() const {
return real_address;
}
Node GetBaseAddress() const {
const Node& GetBaseAddress() const {
return base_address;
}
@ -489,9 +493,9 @@ public:
}
private:
const Node real_address;
const Node base_address;
const GlobalMemoryBase descriptor;
Node real_address;
Node base_address;
GlobalMemoryBase descriptor;
};
/// Commentary, can be dropped