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Merge pull request #1052 from yuriks/vertex-disasm

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Shader Debugger Improvements
This commit is contained in:
Yuri Kunde Schlesner 2015-09-07 16:54:45 -03:00
commit 87a2fd8b3f
3 changed files with 183 additions and 123 deletions
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2
src/citra_qt/debugger/graphics_cmdlists.cpp
View file

@ -359,7 +359,7 @@ void GPUCommandListWidget::CopyAllToClipboard() {
QClipboard* clipboard = QApplication::clipboard();
QString text;
QAbstractItemModel* model = static_cast<QAbstractListModel*>(list_widget->model());
QAbstractItemModel* model = static_cast<QAbstractItemModel*>(list_widget->model());
for (int row = 0; row < model->rowCount({}); ++row) {
for (int col = 0; col < model->columnCount({}); ++col) {

293
src/citra_qt/debugger/graphics_vertex_shader.cpp
View file

@ -7,6 +7,7 @@
#include <QBoxLayout>
#include <QFileDialog>
#include <QFormLayout>
#include <QGroupBox>
#include <QLabel>
#include <QLineEdit>
@ -26,18 +27,10 @@ using nihstro::Instruction;
using nihstro::SourceRegister;
using nihstro::SwizzlePattern;
GraphicsVertexShaderModel::GraphicsVertexShaderModel(GraphicsVertexShaderWidget* parent): QAbstractItemModel(parent), par(parent) {
GraphicsVertexShaderModel::GraphicsVertexShaderModel(GraphicsVertexShaderWidget* parent): QAbstractTableModel(parent), par(parent) {
}
QModelIndex GraphicsVertexShaderModel::index(int row, int column, const QModelIndex& parent) const {
return createIndex(row, column);
}
QModelIndex GraphicsVertexShaderModel::parent(const QModelIndex& child) const {
return QModelIndex();
}
int GraphicsVertexShaderModel::columnCount(const QModelIndex& parent) const {
return 3;
}
@ -65,6 +58,28 @@ QVariant GraphicsVertexShaderModel::headerData(int section, Qt::Orientation orie
return QVariant();
}
static std::string SelectorToString(u32 selector) {
std::string ret;
for (int i = 0; i < 4; ++i) {
int component = (selector >> ((3 - i) * 2)) & 3;
ret += "xyzw"[component];
}
return ret;
}
// e.g. "-c92[a0.x].xyzw"
static void print_input(std::ostringstream& output, const SourceRegister& input,
bool negate, const std::string& swizzle_mask, bool align = true,
const std::string& address_register_name = std::string()) {
if (align)
output << std::setw(4) << std::right;
output << ((negate ? "-" : "") + input.GetName());
if (!address_register_name.empty())
output << '[' << address_register_name << ']';
output << '.' << swizzle_mask;
};
QVariant GraphicsVertexShaderModel::data(const QModelIndex& index, int role) const {
switch (role) {
case Qt::DisplayRole:
@ -81,102 +96,120 @@ QVariant GraphicsVertexShaderModel::data(const QModelIndex& index, int role) con
case 2:
{
std::stringstream output;
output.flags(std::ios::hex);
std::ostringstream output;
output.flags(std::ios::uppercase);
Instruction instr = par->info.code[index.row()];
const SwizzlePattern& swizzle = par->info.swizzle_info[instr.common.operand_desc_id].pattern;
// To make the code aligning columns of assembly easier to keep track of, this function
// keeps track of the start of the start of the previous column, allowing alignment
// based on desired field widths.
int current_column = 0;
auto AlignToColumn = [&](int col_width) {
// Prints spaces to the output to pad previous column to size and advances the
// column marker.
current_column += col_width;
int to_add = std::max(1, current_column - (int)output.tellp());
for (int i = 0; i < to_add; ++i) {
output << ' ';
}
};
const Instruction instr = par->info.code[index.row()];
const OpCode opcode = instr.opcode;
const OpCode::Info opcode_info = opcode.GetInfo();
const u32 operand_desc_id = opcode_info.type == OpCode::Type::MultiplyAdd ?
instr.mad.operand_desc_id.Value() : instr.common.operand_desc_id.Value();
const SwizzlePattern swizzle = par->info.swizzle_info[operand_desc_id].pattern;
// longest known instruction name: "setemit "
output << std::setw(8) << std::left << instr.opcode.Value().GetInfo().name;
int kOpcodeColumnWidth = 8;
// "rXX.xyzw "
int kOutputColumnWidth = 10;
// "-rXX.xyzw ", no attempt is made to align indexed inputs
int kInputOperandColumnWidth = 11;
// e.g. "-c92.xyzw"
static auto print_input = [](std::stringstream& output, const SourceRegister& input,
bool negate, const std::string& swizzle_mask) {
output << std::setw(4) << std::right << (negate ? "-" : "") + input.GetName();
output << "." << swizzle_mask;
};
output << opcode_info.name;
// e.g. "-c92[a0.x].xyzw"
static auto print_input_indexed = [](std::stringstream& output, const SourceRegister& input,
bool negate, const std::string& swizzle_mask,
const std::string& address_register_name) {
std::string relative_address;
if (!address_register_name.empty())
relative_address = "[" + address_register_name + "]";
output << std::setw(10) << std::right << (negate ? "-" : "") + input.GetName() + relative_address;
output << "." << swizzle_mask;
};
// Use print_input or print_input_indexed depending on whether relative addressing is used or not.
static auto print_input_indexed_compact = [](std::stringstream& output, const SourceRegister& input,
bool negate, const std::string& swizzle_mask,
const std::string& address_register_name) {
if (address_register_name.empty())
print_input(output, input, negate, swizzle_mask);
else
print_input_indexed(output, input, negate, swizzle_mask, address_register_name);
};
switch (instr.opcode.Value().GetInfo().type) {
switch (opcode_info.type) {
case OpCode::Type::Trivial:
// Nothing to do here
break;
case OpCode::Type::Arithmetic:
case OpCode::Type::MultiplyAdd:
{
// Use custom code for special instructions
switch (instr.opcode.Value().EffectiveOpCode()) {
switch (opcode.EffectiveOpCode()) {
case OpCode::Id::CMP:
{
AlignToColumn(kOpcodeColumnWidth);
// NOTE: CMP always writes both cc components, so we do not consider the dest mask here.
output << std::setw(4) << std::right << "cc.";
output << "xy ";
output << " cc.xy";
AlignToColumn(kOutputColumnWidth);
SourceRegister src1 = instr.common.GetSrc1(false);
SourceRegister src2 = instr.common.GetSrc2(false);
print_input_indexed_compact(output, src1, swizzle.negate_src1, swizzle.SelectorToString(false).substr(0,1), instr.common.AddressRegisterName());
output << " " << instr.common.compare_op.ToString(instr.common.compare_op.x) << " ";
print_input(output, src2, swizzle.negate_src2, swizzle.SelectorToString(true).substr(0,1));
output << ' ';
print_input(output, src1, swizzle.negate_src1, swizzle.SelectorToString(false).substr(0,1), false, instr.common.AddressRegisterName());
output << ' ' << instr.common.compare_op.ToString(instr.common.compare_op.x) << ' ';
print_input(output, src2, swizzle.negate_src2, swizzle.SelectorToString(true).substr(0,1), false);
output << ", ";
print_input_indexed_compact(output, src1, swizzle.negate_src1, swizzle.SelectorToString(false).substr(1,1), instr.common.AddressRegisterName());
output << " " << instr.common.compare_op.ToString(instr.common.compare_op.y) << " ";
print_input(output, src2, swizzle.negate_src2, swizzle.SelectorToString(true).substr(1,1));
print_input(output, src1, swizzle.negate_src1, swizzle.SelectorToString(false).substr(1,1), false, instr.common.AddressRegisterName());
output << ' ' << instr.common.compare_op.ToString(instr.common.compare_op.y) << ' ';
print_input(output, src2, swizzle.negate_src2, swizzle.SelectorToString(true).substr(1,1), false);
break;
}
case OpCode::Id::MAD:
case OpCode::Id::MADI:
{
AlignToColumn(kOpcodeColumnWidth);
bool src_is_inverted = 0 != (opcode_info.subtype & OpCode::Info::SrcInversed);
SourceRegister src1 = instr.mad.GetSrc1(src_is_inverted);
SourceRegister src2 = instr.mad.GetSrc2(src_is_inverted);
SourceRegister src3 = instr.mad.GetSrc3(src_is_inverted);
output << std::setw(3) << std::right << instr.mad.dest.Value().GetName() << '.' << swizzle.DestMaskToString();
AlignToColumn(kOutputColumnWidth);
print_input(output, src1, swizzle.negate_src1, SelectorToString(swizzle.src1_selector));
AlignToColumn(kInputOperandColumnWidth);
print_input(output, src2, swizzle.negate_src2, SelectorToString(swizzle.src2_selector));
AlignToColumn(kInputOperandColumnWidth);
print_input(output, src3, swizzle.negate_src3, SelectorToString(swizzle.src3_selector));
AlignToColumn(kInputOperandColumnWidth);
break;
}
default:
{
bool src_is_inverted = 0 != (instr.opcode.Value().GetInfo().subtype & OpCode::Info::SrcInversed);
AlignToColumn(kOpcodeColumnWidth);
if (instr.opcode.Value().GetInfo().subtype & OpCode::Info::Dest) {
bool src_is_inverted = 0 != (opcode_info.subtype & OpCode::Info::SrcInversed);
if (opcode_info.subtype & OpCode::Info::Dest) {
// e.g. "r12.xy__"
output << std::setw(4) << std::right << instr.common.dest.Value().GetName() + ".";
output << swizzle.DestMaskToString();
} else if (instr.opcode.Value().GetInfo().subtype == OpCode::Info::MOVA) {
output << std::setw(4) << std::right << "a0.";
output << swizzle.DestMaskToString();
} else {
output << " ";
output << std::setw(3) << std::right << instr.common.dest.Value().GetName() << '.' << swizzle.DestMaskToString();
} else if (opcode_info.subtype == OpCode::Info::MOVA) {
output << " a0." << swizzle.DestMaskToString();
}
output << " ";
AlignToColumn(kOutputColumnWidth);
if (instr.opcode.Value().GetInfo().subtype & OpCode::Info::Src1) {
if (opcode_info.subtype & OpCode::Info::Src1) {
SourceRegister src1 = instr.common.GetSrc1(src_is_inverted);
print_input_indexed(output, src1, swizzle.negate_src1, swizzle.SelectorToString(false), instr.common.AddressRegisterName());
} else {
output << " ";
print_input(output, src1, swizzle.negate_src1, swizzle.SelectorToString(false), true, instr.common.AddressRegisterName());
AlignToColumn(kInputOperandColumnWidth);
}
// TODO: In some cases, the Address Register is used as an index for SRC2 instead of SRC1
if (instr.opcode.Value().GetInfo().subtype & OpCode::Info::Src2) {
if (opcode_info.subtype & OpCode::Info::Src2) {
SourceRegister src2 = instr.common.GetSrc2(src_is_inverted);
print_input(output, src2, swizzle.negate_src2, swizzle.SelectorToString(true));
AlignToColumn(kInputOperandColumnWidth);
}
break;
}
@ -186,46 +219,55 @@ QVariant GraphicsVertexShaderModel::data(const QModelIndex& index, int role) con
}
case OpCode::Type::Conditional:
case OpCode::Type::UniformFlowControl:
{
switch (instr.opcode.Value().EffectiveOpCode()) {
output << ' ';
switch (opcode.EffectiveOpCode()) {
case OpCode::Id::LOOP:
output << "(unknown instruction format)";
break;
default:
output << "if ";
if (opcode_info.subtype & OpCode::Info::HasCondition) {
output << '(';
if (instr.opcode.Value().GetInfo().subtype & OpCode::Info::HasCondition) {
const char* ops[] = {
" || ", " && ", "", ""
};
if (instr.flow_control.op != instr.flow_control.JustY)
output << ((!instr.flow_control.refx) ? "!" : " ") << "cc.x";
if (instr.flow_control.op != instr.flow_control.JustY) {
if (instr.flow_control.refx) output << '!';
output << "cc.x";
}
output << ops[instr.flow_control.op];
if (instr.flow_control.op == instr.flow_control.Or) {
output << " || ";
} else if (instr.flow_control.op == instr.flow_control.And) {
output << " && ";
}
if (instr.flow_control.op != instr.flow_control.JustX)
output << ((!instr.flow_control.refy) ? "!" : " ") << "cc.y";
if (instr.flow_control.op != instr.flow_control.JustX) {
if (instr.flow_control.refy) output << '!';
output << "cc.y";
}
output << " ";
} else if (instr.opcode.Value().GetInfo().subtype & OpCode::Info::HasUniformIndex) {
output << "b" << instr.flow_control.bool_uniform_id << " ";
output << ") ";
} else if (opcode_info.subtype & OpCode::Info::HasUniformIndex) {
output << 'b' << instr.flow_control.bool_uniform_id << ' ';
}
u32 target_addr = instr.flow_control.dest_offset;
u32 target_addr_else = instr.flow_control.dest_offset;
if (instr.opcode.Value().GetInfo().subtype & OpCode::Info::HasAlternative) {
output << "else jump to 0x" << std::setw(4) << std::right << std::setfill('0') << 4 * instr.flow_control.dest_offset << " ";
} else if (instr.opcode.Value().GetInfo().subtype & OpCode::Info::HasExplicitDest) {
output << "jump to 0x" << std::setw(4) << std::right << std::setfill('0') << 4 * instr.flow_control.dest_offset << " ";
if (opcode_info.subtype & OpCode::Info::HasAlternative) {
output << "else jump to 0x" << std::setw(4) << std::right << std::setfill('0') << std::hex << (4 * instr.flow_control.dest_offset);
} else if (opcode_info.subtype & OpCode::Info::HasExplicitDest) {
output << "jump to 0x" << std::setw(4) << std::right << std::setfill('0') << std::hex << (4 * instr.flow_control.dest_offset);
} else {
// TODO: Handle other cases
output << "(unknown destination)";
}
if (instr.opcode.Value().GetInfo().subtype & OpCode::Info::HasFinishPoint) {
output << "(return on " << std::setw(4) << std::right << std::setfill('0')
<< 4 * instr.flow_control.dest_offset + 4 * instr.flow_control.num_instructions << ")";
if (opcode_info.subtype & OpCode::Info::HasFinishPoint) {
output << " (return on 0x" << std::setw(4) << std::right << std::setfill('0') << std::hex
<< (4 * instr.flow_control.dest_offset + 4 * instr.flow_control.num_instructions) << ')';
}
break;
@ -234,7 +276,7 @@ QVariant GraphicsVertexShaderModel::data(const QModelIndex& index, int role) con
}
default:
output << "(unknown instruction format)";
output << " (unknown instruction format)";
break;
}
@ -250,12 +292,23 @@ QVariant GraphicsVertexShaderModel::data(const QModelIndex& index, int role) con
return GetMonospaceFont();
case Qt::BackgroundRole:
// Highlight instructions which have no debug data associated to them
{
// Highlight current instruction
int current_record_index = par->cycle_index->value();
if (current_record_index < par->debug_data.records.size()) {
const auto& current_record = par->debug_data.records[current_record_index];
if (index.row() == current_record.instruction_offset) {
return QColor(255, 255, 63);
}
}
// Use a grey background for instructions which have no debug data associated to them
for (const auto& record : par->debug_data.records)
if (index.row() == record.instruction_offset)
return QVariant();
return QBrush(QColor(255, 255, 127));
return QBrush(QColor(192, 192, 192));
}
// TODO: Draw arrows for each "reachable" instruction to visualize control flow
@ -288,6 +341,13 @@ GraphicsVertexShaderWidget::GraphicsVertexShaderWidget(std::shared_ptr< Pica::De
: BreakPointObserverDock(debug_context, "Pica Vertex Shader", parent) {
setObjectName("PicaVertexShader");
// Clear input vertex data so that it contains valid float values in case a debug shader
// execution happens before the first Vertex Loaded breakpoint.
// TODO: This makes a crash in the interpreter much less likely, but not impossible. The
// interpreter should guard against out-of-bounds accesses to ensure crashes in it aren't
// possible.
std::memset(&input_vertex, 0, sizeof(input_vertex));
auto input_data_mapper = new QSignalMapper(this);
// TODO: Support inputting data in hexadecimal raw format
@ -312,9 +372,6 @@ GraphicsVertexShaderWidget::GraphicsVertexShaderWidget(std::shared_ptr< Pica::De
cycle_index = new QSpinBox;
connect(this, SIGNAL(SelectCommand(const QModelIndex&, QItemSelectionModel::SelectionFlags)),
binary_list->selectionModel(), SLOT(select(const QModelIndex&, QItemSelectionModel::SelectionFlags)));
connect(dump_shader, SIGNAL(clicked()), this, SLOT(DumpShader()));
connect(cycle_index, SIGNAL(valueChanged(int)), this, SLOT(OnCycleIndexChanged(int)));
@ -339,6 +396,9 @@ GraphicsVertexShaderWidget::GraphicsVertexShaderWidget(std::shared_ptr< Pica::De
// Create an HBoxLayout to store the widgets used to specify a particular attribute
// and store it in a QWidget to allow for easy hiding and unhiding.
auto row_layout = new QHBoxLayout;
// Remove unecessary padding between rows
row_layout->setContentsMargins(0, 0, 0, 0);
row_layout->addWidget(new QLabel(tr("Attribute %1").arg(i, 2)));
for (unsigned comp = 0; comp < 4; ++comp)
row_layout->addWidget(input_data[4 * i + comp]);
@ -358,20 +418,25 @@ GraphicsVertexShaderWidget::GraphicsVertexShaderWidget(std::shared_ptr< Pica::De
input_data_group->setLayout(sub_layout);
main_layout->addWidget(input_data_group);
}
{
auto sub_layout = new QHBoxLayout;
sub_layout->addWidget(binary_list);
main_layout->addLayout(sub_layout);
}
// Make program listing expand to fill available space in the dialog
binary_list->setSizePolicy(QSizePolicy::Preferred, QSizePolicy::MinimumExpanding);
main_layout->addWidget(binary_list);
main_layout->addWidget(dump_shader);
{
auto sub_layout = new QHBoxLayout;
sub_layout->addWidget(new QLabel(tr("Cycle Index:")));
sub_layout->addWidget(cycle_index);
auto sub_layout = new QFormLayout;
sub_layout->addRow(tr("Cycle Index:"), cycle_index);
main_layout->addLayout(sub_layout);
}
// Set a minimum height so that the size of this label doesn't cause the rest of the bottom
// part of the UI to keep jumping up and down when cycling through instructions.
instruction_description->setMinimumHeight(instruction_description->fontMetrics().lineSpacing() * 6);
instruction_description->setAlignment(Qt::AlignLeft | Qt::AlignTop);
main_layout->addWidget(instruction_description);
main_layout->addStretch();
main_widget->setLayout(main_layout);
setWidget(main_widget);
@ -418,6 +483,7 @@ void GraphicsVertexShaderWidget::Reload(bool replace_vertex_data, void* vertex_d
auto& shader_config = Pica::g_state.regs.vs;
for (auto instr : shader_setup.program_code)
info.code.push_back({instr});
int num_attributes = Pica::g_state.regs.vertex_attributes.GetNumTotalAttributes();
for (auto pattern : shader_setup.swizzle_data)
info.swizzle_info.push_back({pattern});
@ -426,19 +492,18 @@ void GraphicsVertexShaderWidget::Reload(bool replace_vertex_data, void* vertex_d
info.labels.insert({ entry_point, "main" });
// Generate debug information
debug_data = Pica::Shader::ProduceDebugInfo(input_vertex, 1, shader_config, shader_setup);
debug_data = Pica::Shader::ProduceDebugInfo(input_vertex, num_attributes, shader_config, shader_setup);
// Reload widget state
// Only show input attributes which are used as input to the shader
for (unsigned int attr = 0; attr < 16; ++attr) {
input_data_container[attr]->setVisible(false);
}
for (unsigned int attr = 0; attr < Pica::g_state.regs.vertex_attributes.GetNumTotalAttributes(); ++attr) {
for (unsigned int attr = 0; attr < num_attributes; ++attr) {
unsigned source_attr = shader_config.input_register_map.GetRegisterForAttribute(attr);
input_data_mapping[source_attr]->setText(QString("-> v%1").arg(attr));
input_data_container[source_attr]->setVisible(true);
}
// Only show input attributes which are used as input to the shader
for (unsigned int attr = num_attributes; attr < 16; ++attr) {
input_data_container[attr]->setVisible(false);
}
// Initialize debug info text for current cycle count
cycle_index->setMaximum(debug_data.records.size() - 1);
@ -453,6 +518,8 @@ void GraphicsVertexShaderWidget::OnResumed() {
void GraphicsVertexShaderWidget::OnInputAttributeChanged(int index) {
float value = input_data[index]->text().toFloat();
input_vertex.attr[index / 4][index % 4] = Pica::float24::FromFloat32(value);
// Re-execute shader with updated value
Reload();
}
@ -492,8 +559,8 @@ void GraphicsVertexShaderWidget::OnCycleIndexChanged(int index) {
instruction_description->setText(text);
// Scroll to current instruction
const QModelIndex& instr_index = model->index(record.instruction_offset, 0);
emit SelectCommand(instr_index, QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows);
// Emit model update notification and scroll to current instruction
QModelIndex instr_index = model->index(record.instruction_offset, 0);
emit model->dataChanged(instr_index, model->index(record.instruction_offset, model->columnCount()));
binary_list->scrollTo(instr_index, QAbstractItemView::EnsureVisible);
}

11
src/citra_qt/debugger/graphics_vertex_shader.h
View file

@ -4,7 +4,7 @@
#pragma once
#include <QAbstractListModel>
#include <QAbstractTableModel>
#include "graphics_breakpoint_observer.h"
@ -17,14 +17,12 @@ class QSpinBox;
class GraphicsVertexShaderWidget;
class GraphicsVertexShaderModel : public QAbstractItemModel {
class GraphicsVertexShaderModel : public QAbstractTableModel {
Q_OBJECT
public:
GraphicsVertexShaderModel(GraphicsVertexShaderWidget* parent);
QModelIndex index(int row, int column, const QModelIndex& parent = QModelIndex()) const override;
QModelIndex parent(const QModelIndex& child) const override;
int columnCount(const QModelIndex& parent = QModelIndex()) const override;
int rowCount(const QModelIndex& parent = QModelIndex()) const override;
QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const override;
@ -62,11 +60,6 @@ private slots:
*/
void Reload(bool replace_vertex_data = false, void* vertex_data = nullptr);
signals:
// Call this to change the current command selection in the disassembly view
void SelectCommand(const QModelIndex&, QItemSelectionModel::SelectionFlags);
private:
QLabel* instruction_description;
QTreeView* binary_list;