summaryrefslogtreecommitdiffstats
path: root/src/video_core
diff options
context:
space:
mode:
Diffstat (limited to 'src/video_core')
-rw-r--r--src/video_core/engines/shader_bytecode.h4
-rw-r--r--src/video_core/renderer_opengl/gl_shader_decompiler.cpp10
-rw-r--r--src/video_core/renderer_vulkan/vk_shader_decompiler.cpp11
-rw-r--r--src/video_core/shader/decode/arithmetic_integer.cpp31
-rw-r--r--src/video_core/shader/decode/register_set_predicate.cpp52
-rw-r--r--src/video_core/shader/node.h2
6 files changed, 83 insertions, 27 deletions
diff --git a/src/video_core/engines/shader_bytecode.h b/src/video_core/engines/shader_bytecode.h
index cde3a26b9..8dae754d4 100644
--- a/src/video_core/engines/shader_bytecode.h
+++ b/src/video_core/engines/shader_bytecode.h
@@ -814,6 +814,10 @@ union Instruction {
} alu_integer;
union {
+ BitField<43, 1, u64> x;
+ } iadd;
+
+ union {
BitField<39, 1, u64> ftz;
BitField<32, 1, u64> saturate;
BitField<49, 2, HalfMerge> merge;
diff --git a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
index 0cd3ad7e1..3803a6f3a 100644
--- a/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
+++ b/src/video_core/renderer_opengl/gl_shader_decompiler.cpp
@@ -1870,6 +1870,14 @@ private:
return GenerateBinaryInfix(operation, ">=", Type::Bool, type, type);
}
+ Expression LogicalAddCarry(Operation operation) {
+ const std::string carry = code.GenerateTemporary();
+ code.AddLine("uint {};", carry);
+ code.AddLine("uaddCarry({}, {}, {});", VisitOperand(operation, 0).AsUint(),
+ VisitOperand(operation, 1).AsUint(), carry);
+ return {fmt::format("({} != 0)", carry), Type::Bool};
+ }
+
Expression LogicalFIsNan(Operation operation) {
return GenerateUnary(operation, "isnan", Type::Bool, Type::Float);
}
@@ -2441,6 +2449,8 @@ private:
&GLSLDecompiler::LogicalNotEqual<Type::Uint>,
&GLSLDecompiler::LogicalGreaterEqual<Type::Uint>,
+ &GLSLDecompiler::LogicalAddCarry,
+
&GLSLDecompiler::Logical2HLessThan<false>,
&GLSLDecompiler::Logical2HEqual<false>,
&GLSLDecompiler::Logical2HLessEqual<false>,
diff --git a/src/video_core/renderer_vulkan/vk_shader_decompiler.cpp b/src/video_core/renderer_vulkan/vk_shader_decompiler.cpp
index aaa138f52..20b6ca0ad 100644
--- a/src/video_core/renderer_vulkan/vk_shader_decompiler.cpp
+++ b/src/video_core/renderer_vulkan/vk_shader_decompiler.cpp
@@ -1584,6 +1584,15 @@ private:
return {OpCompositeConstruct(t_half, low, high), Type::HalfFloat};
}
+ Expression LogicalAddCarry(Operation operation) {
+ const Id op_a = AsUint(Visit(operation[0]));
+ const Id op_b = AsUint(Visit(operation[1]));
+
+ const Id result = OpIAddCarry(TypeStruct({t_uint, t_uint}), op_a, op_b);
+ const Id carry = OpCompositeExtract(t_uint, result, 1);
+ return {OpINotEqual(t_bool, carry, Constant(t_uint, 0)), Type::Bool};
+ }
+
Expression LogicalAssign(Operation operation) {
const Node& dest = operation[0];
const Node& src = operation[1];
@@ -2518,6 +2527,8 @@ private:
&SPIRVDecompiler::Binary<&Module::OpINotEqual, Type::Bool, Type::Uint>,
&SPIRVDecompiler::Binary<&Module::OpUGreaterThanEqual, Type::Bool, Type::Uint>,
+ &SPIRVDecompiler::LogicalAddCarry,
+
&SPIRVDecompiler::Binary<&Module::OpFOrdLessThan, Type::Bool2, Type::HalfFloat>,
&SPIRVDecompiler::Binary<&Module::OpFOrdEqual, Type::Bool2, Type::HalfFloat>,
&SPIRVDecompiler::Binary<&Module::OpFOrdLessThanEqual, Type::Bool2, Type::HalfFloat>,
diff --git a/src/video_core/shader/decode/arithmetic_integer.cpp b/src/video_core/shader/decode/arithmetic_integer.cpp
index 9af8c606d..a041519b7 100644
--- a/src/video_core/shader/decode/arithmetic_integer.cpp
+++ b/src/video_core/shader/decode/arithmetic_integer.cpp
@@ -35,15 +35,38 @@ u32 ShaderIR::DecodeArithmeticInteger(NodeBlock& bb, u32 pc) {
case OpCode::Id::IADD_C:
case OpCode::Id::IADD_R:
case OpCode::Id::IADD_IMM: {
- UNIMPLEMENTED_IF_MSG(instr.alu.saturate_d, "IADD saturation not implemented");
+ UNIMPLEMENTED_IF_MSG(instr.alu.saturate_d, "IADD.SAT");
+ UNIMPLEMENTED_IF_MSG(instr.iadd.x && instr.generates_cc, "IADD.X Rd.CC");
op_a = GetOperandAbsNegInteger(op_a, false, instr.alu_integer.negate_a, true);
op_b = GetOperandAbsNegInteger(op_b, false, instr.alu_integer.negate_b, true);
- const Node value = Operation(OperationCode::IAdd, PRECISE, op_a, op_b);
+ Node value = Operation(OperationCode::UAdd, op_a, op_b);
- SetInternalFlagsFromInteger(bb, value, instr.generates_cc);
- SetRegister(bb, instr.gpr0, value);
+ if (instr.iadd.x) {
+ Node carry = GetInternalFlag(InternalFlag::Carry);
+ Node x = Operation(OperationCode::Select, std::move(carry), Immediate(1), Immediate(0));
+ value = Operation(OperationCode::UAdd, std::move(value), std::move(x));
+ }
+
+ if (instr.generates_cc) {
+ const Node i0 = Immediate(0);
+
+ Node zero = Operation(OperationCode::LogicalIEqual, value, i0);
+ Node sign = Operation(OperationCode::LogicalILessThan, value, i0);
+ Node carry = Operation(OperationCode::LogicalAddCarry, op_a, op_b);
+
+ Node pos_a = Operation(OperationCode::LogicalIGreaterThan, op_a, i0);
+ Node pos_b = Operation(OperationCode::LogicalIGreaterThan, op_b, i0);
+ Node pos = Operation(OperationCode::LogicalAnd, std::move(pos_a), std::move(pos_b));
+ Node overflow = Operation(OperationCode::LogicalAnd, pos, sign);
+
+ SetInternalFlag(bb, InternalFlag::Zero, std::move(zero));
+ SetInternalFlag(bb, InternalFlag::Sign, std::move(sign));
+ SetInternalFlag(bb, InternalFlag::Carry, std::move(carry));
+ SetInternalFlag(bb, InternalFlag::Overflow, std::move(overflow));
+ }
+ SetRegister(bb, instr.gpr0, std::move(value));
break;
}
case OpCode::Id::IADD3_C:
diff --git a/src/video_core/shader/decode/register_set_predicate.cpp b/src/video_core/shader/decode/register_set_predicate.cpp
index 8d54cce34..6116c31aa 100644
--- a/src/video_core/shader/decode/register_set_predicate.cpp
+++ b/src/video_core/shader/decode/register_set_predicate.cpp
@@ -2,6 +2,8 @@
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
+#include <utility>
+
#include "common/assert.h"
#include "common/common_types.h"
#include "video_core/engines/shader_bytecode.h"
@@ -10,20 +12,20 @@
namespace VideoCommon::Shader {
+using std::move;
using Tegra::Shader::Instruction;
using Tegra::Shader::OpCode;
namespace {
-constexpr u64 NUM_PROGRAMMABLE_PREDICATES = 7;
-}
+constexpr u64 NUM_CONDITION_CODES = 4;
+constexpr u64 NUM_PREDICATES = 7;
+} // namespace
u32 ShaderIR::DecodeRegisterSetPredicate(NodeBlock& bb, u32 pc) {
const Instruction instr = {program_code[pc]};
const auto opcode = OpCode::Decode(instr);
- UNIMPLEMENTED_IF(instr.p2r_r2p.mode != Tegra::Shader::R2pMode::Pr);
-
- const Node apply_mask = [&] {
+ Node apply_mask = [this, opcode, instr] {
switch (opcode->get().GetId()) {
case OpCode::Id::R2P_IMM:
case OpCode::Id::P2R_IMM:
@@ -34,39 +36,43 @@ u32 ShaderIR::DecodeRegisterSetPredicate(NodeBlock& bb, u32 pc) {
}
}();
- const auto offset = static_cast<u32>(instr.p2r_r2p.byte) * 8;
+ const u32 offset = static_cast<u32>(instr.p2r_r2p.byte) * 8;
+
+ const bool cc = instr.p2r_r2p.mode == Tegra::Shader::R2pMode::Cc;
+ const u64 num_entries = cc ? NUM_CONDITION_CODES : NUM_PREDICATES;
+ const auto get_entry = [this, cc](u64 entry) {
+ return cc ? GetInternalFlag(static_cast<InternalFlag>(entry)) : GetPredicate(entry);
+ };
switch (opcode->get().GetId()) {
case OpCode::Id::R2P_IMM: {
- const Node mask = GetRegister(instr.gpr8);
+ Node mask = GetRegister(instr.gpr8);
- for (u64 pred = 0; pred < NUM_PROGRAMMABLE_PREDICATES; ++pred) {
- const auto shift = static_cast<u32>(pred);
+ for (u64 entry = 0; entry < num_entries; ++entry) {
+ const u32 shift = static_cast<u32>(entry);
- const Node apply_compare = BitfieldExtract(apply_mask, shift, 1);
- const Node condition =
- Operation(OperationCode::LogicalUNotEqual, apply_compare, Immediate(0));
+ Node apply = BitfieldExtract(apply_mask, shift, 1);
+ Node condition = Operation(OperationCode::LogicalUNotEqual, apply, Immediate(0));
- const Node value_compare = BitfieldExtract(mask, offset + shift, 1);
- const Node value =
- Operation(OperationCode::LogicalUNotEqual, value_compare, Immediate(0));
+ Node compare = BitfieldExtract(mask, offset + shift, 1);
+ Node value = Operation(OperationCode::LogicalUNotEqual, move(compare), Immediate(0));
- const Node code = Operation(OperationCode::LogicalAssign, GetPredicate(pred), value);
- bb.push_back(Conditional(condition, {code}));
+ Node code = Operation(OperationCode::LogicalAssign, get_entry(entry), move(value));
+ bb.push_back(Conditional(condition, {move(code)}));
}
break;
}
case OpCode::Id::P2R_IMM: {
Node value = Immediate(0);
- for (u64 pred = 0; pred < NUM_PROGRAMMABLE_PREDICATES; ++pred) {
- Node bit = Operation(OperationCode::Select, GetPredicate(pred), Immediate(1U << pred),
+ for (u64 entry = 0; entry < num_entries; ++entry) {
+ Node bit = Operation(OperationCode::Select, get_entry(entry), Immediate(1U << entry),
Immediate(0));
- value = Operation(OperationCode::UBitwiseOr, std::move(value), std::move(bit));
+ value = Operation(OperationCode::UBitwiseOr, move(value), move(bit));
}
- value = Operation(OperationCode::UBitwiseAnd, std::move(value), apply_mask);
- value = BitfieldInsert(GetRegister(instr.gpr8), std::move(value), offset, 8);
+ value = Operation(OperationCode::UBitwiseAnd, move(value), apply_mask);
+ value = BitfieldInsert(GetRegister(instr.gpr8), move(value), offset, 8);
- SetRegister(bb, instr.gpr0, std::move(value));
+ SetRegister(bb, instr.gpr0, move(value));
break;
}
default:
diff --git a/src/video_core/shader/node.h b/src/video_core/shader/node.h
index 3eee961f5..3f5a7bc7a 100644
--- a/src/video_core/shader/node.h
+++ b/src/video_core/shader/node.h
@@ -132,6 +132,8 @@ enum class OperationCode {
LogicalUNotEqual, /// (uint a, uint b) -> bool
LogicalUGreaterEqual, /// (uint a, uint b) -> bool
+ LogicalAddCarry, /// (uint a, uint b) -> bool
+
Logical2HLessThan, /// (MetaHalfArithmetic, f16vec2 a, f16vec2) -> bool2
Logical2HEqual, /// (MetaHalfArithmetic, f16vec2 a, f16vec2) -> bool2
Logical2HLessEqual, /// (MetaHalfArithmetic, f16vec2 a, f16vec2) -> bool2
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-07 19:22:45 +0100