citra-qt: Move graphics debugging code into its own folder

Keeps all graphics debugging stuff from cluttering up the root debugger
folder

src/citra_qt/debugger/graphics/graphics_tracing.cpp

@@ -0,0 +1,178 @@
+// Copyright 2015 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <algorithm>
+#include <array>
+#include <iterator>
+#include <memory>
+#include <QBoxLayout>
+#include <QComboBox>
+#include <QFileDialog>
+#include <QMessageBox>
+#include <QPushButton>
+#include <boost/range/algorithm/copy.hpp>
+#include "citra_qt/debugger/graphics/graphics_tracing.h"
+#include "common/common_types.h"
+#include "core/hw/gpu.h"
+#include "core/hw/lcd.h"
+#include "core/tracer/recorder.h"
+#include "nihstro/float24.h"
+#include "video_core/pica.h"
+#include "video_core/pica_state.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<u32, 4 * 16> default_attributes;
+    for (unsigned i = 0; i < 16; ++i) {
+        for (unsigned comp = 0; comp < 3; ++comp) {
+            default_attributes[4 * i + comp] =
+                nihstro::to_float24(Pica::g_state.vs_default_attributes[i][comp].ToFloat32());
+        }
+    }
+
+    std::array<u32, 4 * 96> vs_float_uniforms;
+    for (unsigned i = 0; i < 96; ++i)
+        for (unsigned comp = 0; comp < 3; ++comp)
+            vs_float_uniforms[4 * i + comp] =
+                nihstro::to_float24(Pica::g_state.vs.uniforms.f[i][comp].ToFloat32());
+
+    CiTrace::Recorder::InitialState state;
+    std::copy_n((u32*)&GPU::g_regs, sizeof(GPU::g_regs) / sizeof(u32),
+                std::back_inserter(state.gpu_registers));
+    std::copy_n((u32*)&LCD::g_regs, sizeof(LCD::g_regs) / sizeof(u32),
+                std::back_inserter(state.lcd_registers));
+    std::copy_n((u32*)&Pica::g_state.regs, sizeof(Pica::g_state.regs) / sizeof(u32),
+                std::back_inserter(state.pica_registers));
+    boost::copy(default_attributes, std::back_inserter(state.default_attributes));
+    boost::copy(shader_binary, std::back_inserter(state.vs_program_binary));
+    boost::copy(swizzle_data, std::back_inserter(state.vs_swizzle_data));
+    boost::copy(vs_float_uniforms, std::back_inserter(state.vs_float_uniforms));
+    // boost::copy(TODO: Not implemented, std::back_inserter(state.gs_program_binary));
+    // boost::copy(TODO: Not implemented, std::back_inserter(state.gs_swizzle_data));
+    // boost::copy(TODO: Not implemented, std::back_inserter(state.gs_float_uniforms));
+
+    auto recorder = new CiTrace::Recorder(state);
+    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);
+}