| /* |
| * Copyright 2021 Google LLC |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| #include "src/utils/SkVMVisualizer.h" |
| #include <sstream> |
| #include "src/core/SkStreamPriv.h" |
| |
| namespace { |
| |
| size_t get_addr(const char* str) { |
| size_t addr; |
| std::istringstream ss(str); |
| ss >> std::hex >> addr; |
| SkASSERT(!ss.fail()); |
| return addr; |
| } |
| |
| } |
| |
| namespace skvm::viz { |
| |
| bool Instruction::operator == (const Instruction& o) const { |
| return this->kind == o.kind && |
| this->startCode == o.startCode && |
| this->endCode == o.endCode && |
| this->instructionIndex == o.instructionIndex && |
| this->instruction == o.instruction && |
| this->duplicates == o.duplicates; |
| } |
| |
| SkString Instruction::classes() const { |
| SkString result((kind & InstructionFlags::kDead) ? "dead" : "normal"); |
| if (duplicates > 0) result += " origin"; |
| if (duplicates < 0) result += " deduped"; |
| return result; |
| } |
| |
| uint32_t InstructionHash::operator()(const Instruction& i) const { |
| uint32_t hash = 0; |
| hash = SkOpts::hash_fn(&i.kind, sizeof(i.kind), hash); |
| hash = SkOpts::hash_fn(&i.instructionIndex, sizeof(i.instructionIndex), hash); |
| hash = SkOpts::hash_fn(&i.instruction, sizeof(i.instruction), hash); |
| return hash; |
| } |
| |
| void Visualizer::parseDisassembler(SkWStream* output, const char* code) { |
| if (code == nullptr) { |
| fAsmLine = 0; |
| return; |
| } |
| // Read the disassembled code from <_skvm_jit> until |
| // the last command that is attached to the byte code |
| // We skip all the prelude (main loop organizing and such) |
| // generate the main loop running on vector values (keeping hoisted commands in place) |
| // and skip the tail loop (which is the same as the main, only on scalar values) |
| // We stop after the last byte code. |
| SkTArray<SkString> commands; |
| SkStrSplit(code, "\n", kStrict_SkStrSplitMode, &commands); |
| for (const SkString& line : commands) { |
| ++fAsmLine; |
| if (line.find("<_skvm_jit>") >= 0) { |
| break; |
| } |
| } |
| |
| if (fAsmLine < commands.size()) { |
| const SkString& line = commands[fAsmLine]; |
| SkTArray<SkString> tokens; |
| SkStrSplit(line.c_str(), "\t", kStrict_SkStrSplitMode, &tokens); |
| if (tokens.size() >= 2 && tokens[0].size() > 1) { |
| fAsmStart = get_addr(tokens[0].c_str()); |
| } |
| } |
| |
| fAsmEnd += fAsmStart; |
| for (size_t i = fAsmLine; i < commands.size(); ++i) { |
| const SkString& line = commands[i]; |
| SkTArray<SkString> tokens; |
| SkStrSplit(line.c_str(), "\t", kStrict_SkStrSplitMode, &tokens); |
| size_t addr = 0; |
| if (tokens.size() >= 2 && tokens[0].size() > 1) { |
| addr = get_addr(tokens[0].c_str()); |
| } |
| if (addr > fAsmEnd) { |
| break; |
| } |
| addr -= fAsmStart; |
| if (!fAsm.empty()) { |
| MachineCommand& prev = fAsm.back(); |
| if (prev.command.isEmpty()) { |
| int len = addr - prev.address; |
| prev.command.printf("{ align %d bytes }", len); |
| } |
| } |
| SkString command; |
| for (size_t t = 2; t < tokens.size(); ++t) { |
| command += tokens[t]; |
| } |
| fAsm.push_back({addr, tokens[0], command, tokens[1]}); |
| } |
| if (!fAsm.empty()) { |
| MachineCommand& prev = fAsm.back(); |
| if (prev.command.isEmpty()) { |
| int len = fInstructions.back().endCode - prev.address; |
| prev.command.printf("{ align %d bytes }", len); |
| } |
| } |
| fAsmLine = 0; |
| } |
| |
| void Visualizer::dump(SkWStream* output, const char* code) { |
| SkDebugfStream stream; |
| fOutput = output ? output : &stream; |
| this->parseDisassembler(output, code); |
| this->dumpHead(); |
| for (size_t id = 0ul; id < fInstructions.size(); ++id) { |
| this->dumpInstruction(id); |
| } |
| this->dumpTail(); |
| } |
| |
| void Visualizer::markAsDeadCode(std::vector<bool>& live, const std::vector<int>& newIds) { |
| for (size_t id = 0ul; id < fInstructions.size(); ++id) { |
| Instruction& instruction = fInstructions[id]; |
| if (instruction.instructionIndex < 0) { |
| // We skip commands that are duplicates of some other commands |
| // They either will be dead or alive together with the origin |
| continue; |
| } |
| SkASSERT(instruction.instructionIndex < (int)live.size()); |
| if (live[instruction.instructionIndex]) { |
| instruction.instructionIndex = newIds[instruction.instructionIndex]; |
| fToDisassembler[instruction.instructionIndex] = id; |
| } else { |
| instruction.kind |
| = static_cast<InstructionFlags>(instruction.kind | InstructionFlags::kDead); |
| fToDisassembler[instruction.instructionIndex] = -1; |
| // Anything negative meaning the command is duplicate/dead |
| instruction.instructionIndex = -2; |
| } |
| } |
| } |
| |
| void Visualizer::addInstructions(std::vector<skvm::Instruction>& program) { |
| for (Val id = 0; id < (Val)program.size(); id++) { |
| skvm::Instruction& instr = program[id]; |
| auto isDuplicate = instr.op == Op::duplicate; |
| if (isDuplicate) { |
| this->markAsDuplicate(instr.immA, id); |
| instr = program[instr.immA]; |
| } |
| this->addInstruction({ |
| viz::InstructionFlags::kNormal, |
| /*startCode=*/0, /*endCode=0*/0, |
| id, |
| isDuplicate ? -1 : 0, |
| instr |
| }); |
| } |
| } |
| |
| void Visualizer::addInstruction(Instruction skvm) { |
| if (!touches_varying_memory(skvm.instruction.op)) { |
| if (auto found = fIndex.find(skvm)) { |
| auto& instruction = fInstructions[*found]; |
| ++(instruction.duplicates); |
| return; |
| } |
| } |
| fIndex.set(skvm, fInstructions.size()); |
| fToDisassembler.set(skvm.instructionIndex, fInstructions.size()); |
| fInstructions.emplace_back(std::move(skvm)); |
| } |
| |
| void Visualizer::finalize(const std::vector<skvm::Instruction>& all, |
| const std::vector<skvm::OptimizedInstruction>& optimized) { |
| for (Val id = 0; id < (Val)all.size(); id++) { |
| if (optimized[id].can_hoist) { |
| size_t found = fToDisassembler[id]; |
| Instruction& instruction = fInstructions[found]; |
| instruction.kind = |
| static_cast<InstructionFlags>(instruction.kind | InstructionFlags::kHoisted); |
| } |
| } |
| } |
| |
| void Visualizer::addMachineCommands(int id, size_t start, size_t end) { |
| size_t found = fToDisassembler[id]; |
| Instruction& instruction = fInstructions[found]; |
| instruction.startCode = start; |
| instruction.endCode = end; |
| fAsmEnd = std::max(fAsmEnd, end); |
| } |
| |
| SkString Visualizer::V(int reg) const { |
| if (reg == -1) { |
| return SkString("{optimized}"); |
| } else if (reg == -2) { |
| return SkString("{dead code}"); |
| } else { |
| return SkStringPrintf("v%d", reg); |
| } |
| } |
| |
| void Visualizer::formatVV(const char* op, int v1, int v2) const { |
| this->writeText("%s %s, %s", op, V(v1).c_str(), V(v2).c_str()); |
| } |
| void Visualizer::formatPV(const char* op, int imm, int v1) const { |
| this->writeText("%s Ptr%d, %s", op, imm, V(v1).c_str()); |
| } |
| void Visualizer::formatPVV(const char* op, int imm, int v1, int v2) const { |
| this->writeText("%s Ptr%d, %s, %s", op, imm, V(v1).c_str(), V(v2).c_str()); |
| } |
| void Visualizer::formatPVVVV(const char* op, int imm, int v1, int v2, int v3, int v4) const { |
| this->writeText("%s Ptr%d, %s, %s, %s, %s", |
| op, imm, V(v1).c_str(), V(v2).c_str(), V(v3).c_str(), V(v4).c_str()); |
| } |
| void Visualizer::formatA_(int id, const char* op) const { |
| writeText("%s = %s", V(id).c_str(), op); |
| } |
| void Visualizer::formatA_P(int id, const char* op, int imm) const { |
| this->writeText("%s = %s Ptr%d", V(id).c_str(), op, imm); |
| } |
| void Visualizer::formatA_PH(int id, const char* op, int immA, int immB) const { |
| this->writeText("%s = %s Ptr%d, %x", V(id).c_str(), op, immA, immB); |
| } |
| void Visualizer::formatA_PHH(int id, const char* op, int immA, int immB, int immC) const { |
| this->writeText("%s = %s Ptr%d, %x, %x", V(id).c_str(), op, immA, immB, immC); |
| } |
| void Visualizer::formatA_PHV(int id, const char* op, int immA, int immB, int v) const { |
| this->writeText("%s = %s Ptr%d, %x, V%d", V(id).c_str(), op, immA, immB, V(v).c_str()); |
| } |
| void Visualizer::formatA_S(int id, const char* op, int imm) const { |
| float f; |
| memcpy(&f, &imm, 4); |
| char buffer[kSkStrAppendScalar_MaxSize]; |
| char* stop = SkStrAppendScalar(buffer, f); |
| this->writeText("%s = %s %x (", V(id).c_str(), op, imm); |
| fOutput->write(buffer, stop - buffer); |
| this->writeText(")"); |
| } |
| void Visualizer::formatA_V(int id, const char* op, int v) const { |
| this->writeText("%s = %s %s", V(id).c_str(), op, V(v).c_str()); |
| } |
| void Visualizer::formatA_VV(int id, const char* op, int v1, int v2) const { |
| this->writeText("%s = %s %s, %s", V(id).c_str(), op, V(v1).c_str(), V(v2).c_str()); |
| } |
| void Visualizer::formatA_VVV(int id, const char* op, int v1, int v2, int v3) const { |
| this->writeText( |
| "%s = %s %s, %s, %s", V(id).c_str(), op, V(v1).c_str(), V(v2).c_str(), V(v3).c_str()); |
| } |
| void Visualizer::formatA_VC(int id, const char* op, int v, int imm) const { |
| this->writeText("%s = %s %s, %d", V(id).c_str(), op, V(v).c_str(), imm); |
| } |
| |
| void Visualizer::writeText(const char* format, ...) const { |
| SkString message; |
| va_list argp; |
| va_start(argp, format); |
| message.appendVAList(format, argp); |
| va_end(argp); |
| fOutput->writeText(message.c_str()); |
| } |
| |
| void Visualizer::dumpInstruction(int id0) const { |
| const Instruction& instruction = fInstructions[id0]; |
| const int id = instruction.instructionIndex; |
| const int x = instruction.instruction.x, |
| y = instruction.instruction.y, |
| z = instruction.instruction.z, |
| w = instruction.instruction.w; |
| const int immA = instruction.instruction.immA, |
| immB = instruction.instruction.immB, |
| immC = instruction.instruction.immC; |
| if (instruction.instruction.op == skvm::Op::trace_line) { |
| SkASSERT(fDebugInfo != nullptr); |
| SkASSERT(immA >= 0 && immB <= (int)fDebugInfo->fSource.size()); |
| this->writeText("<tr class='source'><td class='mask'></td><td colspan=2>// %s</td></tr>\n", |
| fDebugInfo->fSource[immB].c_str()); |
| return; |
| } else if (instruction.instruction.op == skvm::Op::trace_var || |
| instruction.instruction.op == skvm::Op::trace_scope) { |
| // TODO: We can add some visualization here |
| return; |
| } else if (instruction.instruction.op == skvm::Op::trace_enter) { |
| SkASSERT(fDebugInfo != nullptr); |
| SkASSERT(immA >= 0 && immA <= (int)fDebugInfo->fFuncInfo.size()); |
| std::string& func = fDebugInfo->fFuncInfo[immA].name; |
| SkString mask; |
| mask.printf(immC == 1 ? "%s(-1)" : "%s", V(x).c_str()); |
| this->writeText( |
| "<tr class='source'><td class='mask'>↪%s</td><td colspan=2>%s</td></tr>\n", |
| mask.c_str(), |
| func.c_str()); |
| return; |
| } else if (instruction.instruction.op == skvm::Op::trace_exit) { |
| SkASSERT(fDebugInfo != nullptr); |
| SkASSERT(immA >= 0 && immA <= (int)fDebugInfo->fFuncInfo.size()); |
| std::string& func = fDebugInfo->fFuncInfo[immA].name; |
| SkString mask; |
| mask.printf(immC == 1 ? "%s(-1)" : "%s", V(x).c_str()); |
| this->writeText( |
| "<tr class='source'><td class='mask'>↩%s</td><td colspan=2>%s</td></tr>\n", |
| mask.c_str(), |
| func.c_str()); |
| return; |
| } |
| // No label, to the operation |
| SkString label; |
| if ((instruction.kind & InstructionFlags::kHoisted) != 0) { |
| label.set("↑↑↑ "); |
| } |
| if (instruction.duplicates > 0) { |
| label.appendf("*%d", instruction.duplicates + 1); |
| } |
| SkString classes = instruction.classes(); |
| this->writeText("<tr class='%s'><td>%s</td><td>", classes.c_str(), label.c_str()); |
| // Operation |
| switch (instruction.instruction.op) { |
| case skvm::Op::assert_true: formatVV("assert_true", x, y); break; |
| case skvm::Op::store8: formatPV("store8", immA, x); break; |
| case skvm::Op::store16: formatPV("store16", immA, x); break; |
| case skvm::Op::store32: formatPV("store32", immA, x); break; |
| case skvm::Op::store64: formatPVV("store64", immA, x, y); break; |
| case skvm::Op::store128: formatPVVVV("store128", immA, x, y, z, w); break; |
| case skvm::Op::index: formatA_(id, "index"); break; |
| case skvm::Op::load8: formatA_P(id, "load8", immA); break; |
| case skvm::Op::load16: formatA_P(id, "load16", immA); break; |
| case skvm::Op::load32: formatA_P(id, "load32", immA); break; |
| case skvm::Op::load64: formatA_PH(id, "load64", immA, immB); break; |
| case skvm::Op::load128: formatA_PH(id, "load128", immA, immB); break; |
| case skvm::Op::gather8: formatA_PHV(id, "gather8", immA, immB, x); break; |
| case skvm::Op::gather16: formatA_PHV(id, "gather16", immA, immB, x); break; |
| case skvm::Op::gather32: formatA_PHV(id, "gather32", immA, immB, x); break; |
| case skvm::Op::uniform32: formatA_PH(id, "uniform32", immA, immB); break; |
| case skvm::Op::array32: formatA_PHH(id, "array32", immA, immB, immC); break; |
| case skvm::Op::splat: formatA_S(id, "splat", immA); break; |
| case skvm::Op:: add_f32: formatA_VV(id, "add_f32", x, y); break; |
| case skvm::Op:: sub_f32: formatA_VV(id, "sub_f32", x, y); break; |
| case skvm::Op:: mul_f32: formatA_VV(id, "mul_f32", x, y); break; |
| case skvm::Op:: div_f32: formatA_VV(id, "div_f32", x, y); break; |
| case skvm::Op:: min_f32: formatA_VV(id, "min_f32", x, y); break; |
| case skvm::Op:: max_f32: formatA_VV(id, "max_f32", x, y); break; |
| case skvm::Op:: fma_f32: formatA_VVV(id, "fma_f32", x, y, z); break; |
| case skvm::Op:: fms_f32: formatA_VVV(id, "fms_f32", x, y, z); break; |
| case skvm::Op::fnma_f32: formatA_VVV(id, "fnma_f32", x, y, z); break; |
| case skvm::Op::sqrt_f32: formatA_V(id, "sqrt_f32", x); break; |
| case skvm::Op:: eq_f32: formatA_VV(id, "eq_f32", x, y); break; |
| case skvm::Op::neq_f32: formatA_VV(id, "neq_f32", x, y); break; |
| case skvm::Op:: gt_f32: formatA_VV(id, "gt_f32", x, y); break; |
| case skvm::Op::gte_f32: formatA_VV(id, "gte_f32", x, y); break; |
| case skvm::Op::add_i32: formatA_VV(id, "add_i32", x, y); break; |
| case skvm::Op::sub_i32: formatA_VV(id, "sub_i32", x, y); break; |
| case skvm::Op::mul_i32: formatA_VV(id, "mul_i32", x, y); break; |
| case skvm::Op::shl_i32: formatA_VC(id, "shl_i32", x, immA); break; |
| case skvm::Op::shr_i32: formatA_VC(id, "shr_i32", x, immA); break; |
| case skvm::Op::sra_i32: formatA_VC(id, "sra_i32", x, immA); break; |
| case skvm::Op::eq_i32: formatA_VV(id, "eq_i32", x, y); break; |
| case skvm::Op::gt_i32: formatA_VV(id, "gt_i32", x, y); break; |
| case skvm::Op::bit_and: formatA_VV(id, "bit_and", x, y); break; |
| case skvm::Op::bit_or: formatA_VV(id, "bit_or", x, y); break; |
| case skvm::Op::bit_xor: formatA_VV(id, "bit_xor", x, y); break; |
| case skvm::Op::bit_clear: formatA_VV(id, "bit_clear", x, y); break; |
| case skvm::Op::select: formatA_VVV(id, "select", x, y, z); break; |
| case skvm::Op::ceil: formatA_V(id, "ceil", x); break; |
| case skvm::Op::floor: formatA_V(id, "floor", x); break; |
| case skvm::Op::to_f32: formatA_V(id, "to_f32", x); break; |
| case skvm::Op::to_fp16: formatA_V(id, "to_fp16", x); break; |
| case skvm::Op::from_fp16: formatA_V(id, "from_fp16", x); break; |
| case skvm::Op::trunc: formatA_V(id, "trunc", x); break; |
| case skvm::Op::round: formatA_V(id, "round", x); break; |
| default: SkASSERT(false); |
| } |
| // Generation |
| if ((instruction.kind & InstructionFlags::kDead) == 0) { |
| struct Compare |
| { |
| bool operator() (const MachineCommand& c, std::pair<size_t, size_t> p) const |
| { return c.address < p.first; } |
| bool operator() (std::pair<size_t, size_t> p, const MachineCommand& c) const |
| { return p.second <= c.address; } |
| }; |
| |
| std::pair<size_t, size_t> range(instruction.startCode, instruction.endCode); |
| auto commands = std::equal_range(fAsm.begin(), fAsm.end(), range, Compare{ }); |
| for (const MachineCommand* line = commands.first; line != commands.second; ++line) { |
| this->writeText("</td></tr>\n<tr class='machine'><td>%s</td><td colspan='2'>%s", |
| line->label.c_str(), |
| line->command.c_str()); |
| } |
| fAsmLine = commands.second - fAsm.begin(); |
| } |
| this->writeText("</td></tr>\n"); |
| } |
| |
| void Visualizer::dumpHead() const { |
| this->writeText( |
| "<html>\n" |
| "<head>\n" |
| " <title>SkVM Disassembler Output</title>\n" |
| " <style>\n" |
| " button { border-style: none; font-size: 10px; background-color: lightpink; }\n" |
| " table { text-align: left; }\n" |
| " table th { background-color: lightgray; }\n" |
| " .dead, .dead1 { color: lightgray; text-decoration: line-through; }\n" |
| " .normal, .normal1 { }\n" |
| " .origin, .origin1 { font-weight: bold; }\n" |
| " .source, .source1 { color: darkblue; }\n" |
| " .mask, .mask1 { color: green; }\n" |
| " .comments, .comments1 { }\n" |
| " .machine, .machine1 { color: lightblue; }\n" |
| " </style>\n" |
| " <script>\n" |
| " function initializeButton(className) {\n" |
| " var btn = document.getElementById(className);\n" |
| " var elems = document.getElementsByClassName(className);\n" |
| " if (elems == undefined || elems.length == 0) {\n" |
| " btn.disabled = true;\n" |
| " btn.innerText = \"None\";\n" |
| " btn.style.background = \"lightgray\";\n" |
| " return;\n" |
| " }\n" |
| " };\n" |
| " function initialize() {\n" |
| " initializeButton('normal');\n" |
| " initializeButton('source');\n" |
| " initializeButton('dead');\n" |
| " initializeButton('machine');\n" |
| " };\n" |
| " </script>\n" |
| "</head>\n" |
| "<body onload='initialize();'>\n" |
| " <script>\n" |
| " function toggle(btn, className) {\n" |
| " var elems = document.getElementsByClassName(className);\n" |
| " for (var i = 0; i < elems.length; i++) {\n" |
| " var elem = elems.item(i);\n" |
| " if (elem.style.display === \"\") {\n" |
| " elem.style.display = \"none\";\n" |
| " btn.innerText = \"Show\";\n" |
| " btn.style.background = \"lightcyan\";\n" |
| " } else {\n" |
| " elem.style.display = \"\";\n" |
| " btn.innerText = \"Hide\";\n" |
| " btn.style.background = \"lightpink\";\n" |
| " }\n" |
| " }\n" |
| " };\n" |
| " </script>" |
| " <table border=\"0\" style='font-family:\"monospace\"; font-size: 10px;'>\n" |
| " <caption style='font-family:Roboto; font-size:15px; text-align:left;'>Legend</caption>\n" |
| " <tr>\n" |
| " <th style=\"min-width:100px;\"><u>Kind</u></th>\n" |
| " <th style=\"width:35%;\"><u>Example</u></th>\n" |
| " <th style=\"width: 5%; min-width:50px;\"><u></u></th>\n" |
| " <th style=\"width:60%;\"><u>Description</u></th>\n" |
| " </tr>\n" |
| " <tr class='normal1'>" |
| "<td> </td>" |
| "<td>v1 = load32 Ptr1</td>" |
| "<td><button id='normal' onclick=\"toggle(this, 'normal')\">Hide</button></td>" |
| "<td>A regular SkVM command</td></tr>\n" |
| " <tr class='normal1 origin1'><td>*{N}</td>" |
| "<td>v9 = gt_f32 v0, v1</td>" |
| "<td><button id='dead' onclick=\"toggle(this, 'deduped')\">Hide</button></td>" |
| "<td>A {N} times deduped SkVM command</td></tr>\n" |
| " <tr class='normal1'><td>↑↑↑ </td>" |
| "<td>v22 = splat 3f800000 (1)</td><td></td>" |
| "<td>A hoisted SkVM command</td></tr>\n" |
| " <tr class='source1'><td class='mask'>mask↪v{N}(-1)</td>" |
| "<td>// C++ source line</td><td></td>" |
| "<td>Enter into the procedure with mask v{N} (which has a constant value -1)" |
| "</td></tr>\n" |
| " <tr class='source1'><td class='mask'>mask↩v{N}</td>" |
| "<td>// C++ source line</td><td>" |
| "</td><td>Exit the procedure with mask v{N}</td></tr>\n" |
| " <tr class='source1'><td class='mask'></td><td>// C++ source line</td>" |
| "<td><button id='source' onclick=\"toggle(this, 'source')\">Hide</button></td>" |
| "<td>Line trace back to C++ code</td></tr>\n" |
| " <tr class='dead1'><td></td><td>{dead code} = mul_f32 v1, v18</td>" |
| "<td><button id='dead' onclick=\"toggle(this, 'dead')\">Hide</button></td>" |
| "<td>An eliminated \"dead code\" SkVM command</td></tr>\n" |
| " <tr class='machine1'><td>{address}</td><td>vmovups (%rsi),%ymm0</td>" |
| "<td><button id='machine' onclick=\"toggle(this, 'machine')\">Hide</button></td>" |
| "<td>A disassembled machine command generated by SkVM command</td></tr>\n" |
| " </table>\n" |
| " <table border = \"0\"style='font-family:\"monospace\"; font-size: 10px;'>\n" |
| " <caption style='font-family:Roboto;font-size:15px;text-align:left;'>SkVM Code</caption>\n" |
| " <tr>\n" |
| " <th style=\"min-width:100px;\"><u>Kind</u></th>\n" |
| " <th style=\"width:40%;min-width:100px;\"><u>Command</u></th>\n" |
| " <th style=\"width:60%;\"><u>Comments</u></th>\n" |
| " </tr>"); |
| } |
| void Visualizer::dumpTail() const { |
| this->writeText( |
| " </table>\n" |
| "</body>\n" |
| "</html>" |
| ); |
| } |
| } // namespace skvm::viz |
