citra/src/citra_qt/debugger/graphics_tracing.cpp

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// Copyright 2015 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <memory>
#include <QBoxLayout>
#include <QComboBox>
#include <QFileDialog>
#include <QLabel>
#include <QMessageBox>
#include <QPushButton>
#include <QSpinBox>
#include "core/hw/gpu.h"
#include "video_core/pica.h"
#include "nihstro/float24.h"
#include "graphics_tracing.h"
GraphicsTracingWidget::GraphicsTracingWidget(std::shared_ptr<Pica::DebugContext> debug_context,
QWidget* parent)
: BreakPointObserverDock(debug_context, tr("CiTrace Recorder"), parent) {
setObjectName("CiTracing");
QPushButton* start_recording = new QPushButton(tr("Start Recording"));
QPushButton* stop_recording = new QPushButton(QIcon::fromTheme("document-save"), tr("Stop and Save"));
QPushButton* abort_recording = new QPushButton(tr("Abort Recording"));
connect(this, SIGNAL(SetStartTracingButtonEnabled(bool)), start_recording, SLOT(setVisible(bool)));
connect(this, SIGNAL(SetStopTracingButtonEnabled(bool)), stop_recording, SLOT(setVisible(bool)));
connect(this, SIGNAL(SetAbortTracingButtonEnabled(bool)), abort_recording, SLOT(setVisible(bool)));
connect(start_recording, SIGNAL(clicked()), this, SLOT(StartRecording()));
connect(stop_recording, SIGNAL(clicked()), this, SLOT(StopRecording()));
connect(abort_recording, SIGNAL(clicked()), this, SLOT(AbortRecording()));
stop_recording->setVisible(false);
abort_recording->setVisible(false);
auto main_widget = new QWidget;
auto main_layout = new QVBoxLayout;
{
auto sub_layout = new QHBoxLayout;
sub_layout->addWidget(start_recording);
sub_layout->addWidget(stop_recording);
sub_layout->addWidget(abort_recording);
main_layout->addLayout(sub_layout);
}
main_widget->setLayout(main_layout);
setWidget(main_widget);
}
void GraphicsTracingWidget::StartRecording() {
auto context = context_weak.lock();
if (!context)
return;
auto shader_binary = Pica::g_state.vs.program_code;
auto swizzle_data = Pica::g_state.vs.swizzle_data;
// Encode floating point numbers to 24-bit values
// TODO: Drop this explicit conversion once we store float24 values bit-correctly internally.
std::array<Math::Vec4<uint32_t>, 96> vs_float_uniforms;
for (unsigned i = 0; i < 96; ++i)
for (unsigned comp = 0; comp < 3; ++comp)
vs_float_uniforms[i][comp] = nihstro::to_float24(Pica::g_state.vs.uniforms.f[i][comp].ToFloat32());
auto recorder = new CiTrace::Recorder((u32*)&GPU::g_regs, 0x700, nullptr, 0, (u32*)&Pica::g_state.regs, 0x300,
shader_binary.data(), shader_binary.size(),
swizzle_data.data(), swizzle_data.size(),
(u32*)vs_float_uniforms.data(), vs_float_uniforms.size() * 4,
nullptr, 0, nullptr, 0, nullptr, 0 // Geometry shader is not implemented yet, so submit dummy data for now
);
context->recorder = std::shared_ptr<CiTrace::Recorder>(recorder);
emit SetStartTracingButtonEnabled(false);
emit SetStopTracingButtonEnabled(true);
emit SetAbortTracingButtonEnabled(true);
}
void GraphicsTracingWidget::StopRecording() {
auto context = context_weak.lock();
if (!context)
return;
QString filename = QFileDialog::getSaveFileName(this, tr("Save CiTrace"), "citrace.ctf",
tr("CiTrace File (*.ctf)"));
if (filename.isEmpty()) {
// If the user canceled the dialog, keep recording
return;
}
context->recorder->Finish(filename.toStdString());
context->recorder = nullptr;
emit SetStopTracingButtonEnabled(false);
emit SetAbortTracingButtonEnabled(false);
emit SetStartTracingButtonEnabled(true);
}
void GraphicsTracingWidget::AbortRecording() {
auto context = context_weak.lock();
if (!context)
return;
context->recorder = nullptr;
emit SetStopTracingButtonEnabled(false);
emit SetAbortTracingButtonEnabled(false);
emit SetStartTracingButtonEnabled(true);
}
void GraphicsTracingWidget::OnBreakPointHit(Pica::DebugContext::Event event, void* data) {
widget()->setEnabled(true);
}
void GraphicsTracingWidget::OnResumed() {
widget()->setEnabled(false);
}
void GraphicsTracingWidget::OnEmulationStarting(EmuThread* emu_thread) {
// Disable tracing starting/stopping until a GPU breakpoint is reached
widget()->setEnabled(false);
}
void GraphicsTracingWidget::OnEmulationStopping() {
// TODO: Is it safe to access the context here?
auto context = context_weak.lock();
if (!context)
return;
if (context->recorder) {
auto reply = QMessageBox::question(this, tr("CiTracing still active"),
tr("A CiTrace is still being recorded. Do you want to save it? If not, all recorded data will be discarded."),
QMessageBox::Yes | QMessageBox::No, QMessageBox::Yes);
if (reply == QMessageBox::Yes) {
StopRecording();
} else {
AbortRecording();
}
}
// If the widget was disabled before, enable it now to allow starting
// tracing before starting the next emulation session
widget()->setEnabled(true);
}