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Diffstat (limited to 'src/video_core/shader/track.cpp')
| -rw-r--r-- | src/video_core/shader/track.cpp | 236 |
1 files changed, 0 insertions, 236 deletions
diff --git a/src/video_core/shader/track.cpp b/src/video_core/shader/track.cpp deleted file mode 100644 index 6be3ea92b..000000000 --- a/src/video_core/shader/track.cpp +++ /dev/null @@ -1,236 +0,0 @@ -// Copyright 2018 yuzu Emulator Project -// Licensed under GPLv2 or any later version -// Refer to the license.txt file included. - -#include <algorithm> -#include <utility> -#include <variant> - -#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 { - -namespace { - -std::pair<Node, s64> FindOperation(const NodeBlock& code, s64 cursor, - OperationCode operation_code) { - for (; cursor >= 0; --cursor) { - Node node = code.at(cursor); - - if (const auto operation = std::get_if<OperationNode>(&*node)) { - if (operation->GetCode() == operation_code) { - return {std::move(node), cursor}; - } - } - - if (const auto conditional = std::get_if<ConditionalNode>(&*node)) { - const auto& conditional_code = conditional->GetCode(); - auto result = FindOperation( - conditional_code, static_cast<s64>(conditional_code.size() - 1), operation_code); - auto& found = result.first; - if (found) { - return {std::move(found), 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; - } - if (const auto conditional = std::get_if<ConditionalNode>(&*node)) { - conditional->SetAmendIndex(amend_index); - return true; - } - return false; -} - -} // Anonymous namespace - -std::pair<Node, TrackSampler> ShaderIR::TrackBindlessSampler(Node tracked, const NodeBlock& code, - s64 cursor) { - if (const auto cbuf = std::get_if<CbufNode>(&*tracked)) { - const u32 cbuf_index = cbuf->GetIndex(); - - // 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_index, immediate->GetValue()); - return {tracked, track}; - } - if (const auto operation = std::get_if<OperationNode>(&*offset)) { - const u32 bound_buffer = registry.GetBoundBuffer(); - if (bound_buffer != cbuf_index) { - return {}; - } - if (const std::optional pair = DecoupleIndirectRead(*operation)) { - auto [gpr, base_offset] = *pair; - return HandleBindlessIndirectRead(*cbuf, *operation, gpr, base_offset, tracked, - code, cursor); - } - } - 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)) { - const OperationNode& op = *operation; - - const OperationCode opcode = operation->GetCode(); - if (opcode == OperationCode::IBitwiseOr || opcode == OperationCode::UBitwiseOr) { - ASSERT(op.GetOperandsCount() == 2); - auto [node_a, index_a, offset_a] = TrackCbuf(op[0], code, cursor); - auto [node_b, index_b, offset_b] = TrackCbuf(op[1], code, cursor); - if (node_a && node_b) { - auto track = MakeTrackSampler<SeparateSamplerNode>(std::pair{index_a, index_b}, - std::pair{offset_a, offset_b}); - return {tracked, std::move(track)}; - } - } - std::size_t i = op.GetOperandsCount(); - while (i--) { - if (auto found = TrackBindlessSampler(op[i - 1], code, cursor); std::get<0>(found)) { - // Constant buffer 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::pair<Node, TrackSampler> ShaderIR::HandleBindlessIndirectRead( - const CbufNode& cbuf, const OperationNode& operation, Node gpr, Node base_offset, Node tracked, - const NodeBlock& code, s64 cursor) { - const auto offset_imm = std::get<ImmediateNode>(*base_offset); - const auto& gpu_driver = registry.AccessGuestDriverProfile(); - const u32 bindless_cv = NewCustomVariable(); - const u32 texture_handler_size = gpu_driver.GetTextureHandlerSize(); - Node op = Operation(OperationCode::UDiv, gpr, Immediate(texture_handler_size)); - - Node cv_node = GetCustomVariable(bindless_cv); - Node amend_op = Operation(OperationCode::Assign, std::move(cv_node), std::move(op)); - const std::size_t amend_index = DeclareAmend(std::move(amend_op)); - AmendNodeCv(amend_index, code[cursor]); - - // TODO: Implement bindless index custom variable - auto track = - MakeTrackSampler<ArraySamplerNode>(cbuf.GetIndex(), offset_imm.GetValue(), bindless_cv); - return {tracked, track}; -} - -std::tuple<Node, u32, u32> ShaderIR::TrackCbuf(Node tracked, const NodeBlock& code, - s64 cursor) const { - 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)) { - return {tracked, cbuf->GetIndex(), immediate->GetValue()}; - } - 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 TrackCbuf(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 = TrackCbuf((*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 TrackCbuf(tracked, conditional_code, static_cast<s64>(conditional_code.size())); - } - return {}; -} - -std::optional<u32> ShaderIR::TrackImmediate(Node tracked, const NodeBlock& code, s64 cursor) const { - // Reduce the cursor in one to avoid infinite loops when the instruction sets the same register - // that it uses as operand - const auto result = TrackRegister(&std::get<GprNode>(*tracked), code, cursor - 1); - const auto& found = result.first; - if (!found) { - return std::nullopt; - } - if (const auto immediate = std::get_if<ImmediateNode>(&*found)) { - return immediate->GetValue(); - } - return std::nullopt; -} - -std::pair<Node, s64> ShaderIR::TrackRegister(const GprNode* tracked, const NodeBlock& code, - s64 cursor) const { - for (; cursor >= 0; --cursor) { - const auto [found_node, new_cursor] = FindOperation(code, cursor, OperationCode::Assign); - if (!found_node) { - return {}; - } - const auto operation = std::get_if<OperationNode>(&*found_node); - ASSERT(operation); - - const auto& target = (*operation)[0]; - if (const auto gpr_target = std::get_if<GprNode>(&*target)) { - if (gpr_target->GetIndex() == tracked->GetIndex()) { - return {(*operation)[1], new_cursor}; - } - } - } - return {}; -} - -} // namespace VideoCommon::Shader |