11 files changed, 1029 insertions, 26 deletions

diff --git a/src/citra_qt/debugger/callstack.cpp b/src/citra_qt/debugger/callstack.cpp
index 895851be3..a9ec2f7fe 100644
--- a/src/citra_qt/debugger/callstack.cpp
+++ b/src/citra_qt/debugger/callstack.cpp
@@ -27,10 +27,10 @@ void CallstackWidget::OnCPUStepped()
     ARM_Interface* app_core = Core::g_app_core;
 
     u32 sp = app_core->GetReg(13); //stack pointer
-    u32 addr, ret_addr, call_addr, func_addr;
+    u32 ret_addr, call_addr, func_addr;
 
     int counter = 0;
-    for (int addr = 0x10000000; addr >= sp; addr -= 4)
+    for (u32 addr = 0x10000000; addr >= sp; addr -= 4)
     {
         ret_addr = Memory::Read32(addr);
         call_addr = ret_addr - 4; //get call address???
diff --git a/src/citra_qt/debugger/disassembler.cpp b/src/citra_qt/debugger/disassembler.cpp
index 2ee877743..14745f3bb 100644
--- a/src/citra_qt/debugger/disassembler.cpp
+++ b/src/citra_qt/debugger/disassembler.cpp
@@ -220,7 +220,9 @@ void DisassemblerWidget::OnPause()
     emu_thread.SetCpuRunning(false);
 
     // TODO: By now, the CPU might not have actually stopped...
-    model->SetNextInstruction(Core::g_app_core->GetPC());
+    if (Core::g_app_core) {
+        model->SetNextInstruction(Core::g_app_core->GetPC());
+    }
 }
 
 void DisassemblerWidget::OnToggleStartStop()
diff --git a/src/citra_qt/debugger/graphics.cpp b/src/citra_qt/debugger/graphics.cpp
index a86a55404..6ff4c290d 100644
--- a/src/citra_qt/debugger/graphics.cpp
+++ b/src/citra_qt/debugger/graphics.cpp
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #include "graphics.hxx"
diff --git a/src/citra_qt/debugger/graphics.hxx b/src/citra_qt/debugger/graphics.hxx
index 72656f93c..8119b4c87 100644
--- a/src/citra_qt/debugger/graphics.hxx
+++ b/src/citra_qt/debugger/graphics.hxx
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #pragma once
diff --git a/src/citra_qt/debugger/graphics_breakpoints.cpp b/src/citra_qt/debugger/graphics_breakpoints.cpp
new file mode 100644
index 000000000..9486f06cc
--- /dev/null
+++ b/src/citra_qt/debugger/graphics_breakpoints.cpp
@@ -0,0 +1,263 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <QMetaType>
+#include <QPushButton>
+#include <QTreeWidget>
+#include <QVBoxLayout>
+#include <QLabel>
+
+#include "graphics_breakpoints.hxx"
+#include "graphics_breakpoints_p.hxx"
+
+BreakPointModel::BreakPointModel(std::shared_ptr<Pica::DebugContext> debug_context, QObject* parent)
+    : QAbstractListModel(parent), context_weak(debug_context),
+      at_breakpoint(debug_context->at_breakpoint),
+      active_breakpoint(debug_context->active_breakpoint)
+{
+
+}
+
+int BreakPointModel::columnCount(const QModelIndex& parent) const
+{
+    return 2;
+}
+
+int BreakPointModel::rowCount(const QModelIndex& parent) const
+{
+    return static_cast<int>(Pica::DebugContext::Event::NumEvents);
+}
+
+QVariant BreakPointModel::data(const QModelIndex& index, int role) const
+{
+    const auto event = static_cast<Pica::DebugContext::Event>(index.row());
+
+    switch (role) {
+    case Qt::DisplayRole:
+    {
+        switch (index.column()) {
+        case 0:
+        {
+            static const std::map<Pica::DebugContext::Event, QString> map = {
+                { Pica::DebugContext::Event::CommandLoaded, tr("Pica command loaded") },
+                { Pica::DebugContext::Event::CommandProcessed, tr("Pica command processed") },
+                { Pica::DebugContext::Event::IncomingPrimitiveBatch, tr("Incoming primitive batch") },
+                { Pica::DebugContext::Event::FinishedPrimitiveBatch, tr("Finished primitive batch") },
+                { Pica::DebugContext::Event::VertexLoaded, tr("Vertex Loaded") }
+            };
+
+            _dbg_assert_(Debug_GPU, map.size() == static_cast<size_t>(Pica::DebugContext::Event::NumEvents));
+
+            return (map.find(event) != map.end()) ? map.at(event) : QString();
+        }
+
+        case 1:
+            return data(index, Role_IsEnabled).toBool() ? tr("Enabled") : tr("Disabled");
+
+        default:
+            break;
+        }
+
+        break;
+    }
+
+    case Qt::BackgroundRole:
+    {
+        if (at_breakpoint && index.row() == static_cast<int>(active_breakpoint)) {
+            return QBrush(QColor(0xE0, 0xE0, 0x10));
+        }
+        break;
+    }
+
+    case Role_IsEnabled:
+    {
+        auto context = context_weak.lock();
+        return context && context->breakpoints[event].enabled;
+    }
+
+    default:
+        break;
+    }
+    return QVariant();
+}
+
+QVariant BreakPointModel::headerData(int section, Qt::Orientation orientation, int role) const
+{
+    switch(role) {
+    case Qt::DisplayRole:
+    {
+        if (section == 0) {
+            return tr("Event");
+        } else if (section == 1) {
+            return tr("Status");
+        }
+
+        break;
+    }
+    }
+
+    return QVariant();
+}
+
+bool BreakPointModel::setData(const QModelIndex& index, const QVariant& value, int role)
+{
+    const auto event = static_cast<Pica::DebugContext::Event>(index.row());
+
+    switch (role) {
+    case Role_IsEnabled:
+    {
+        auto context = context_weak.lock();
+        if (!context)
+            return false;
+
+        context->breakpoints[event].enabled = value.toBool();
+        QModelIndex changed_index = createIndex(index.row(), 1);
+        emit dataChanged(changed_index, changed_index);
+        return true;
+    }
+    }
+
+    return false;
+}
+
+
+void BreakPointModel::OnBreakPointHit(Pica::DebugContext::Event event)
+{
+    auto context = context_weak.lock();
+    if (!context)
+        return;
+
+    active_breakpoint = context->active_breakpoint;
+    at_breakpoint = context->at_breakpoint;
+    emit dataChanged(createIndex(static_cast<int>(event), 0),
+                     createIndex(static_cast<int>(event), 1));
+}
+
+void BreakPointModel::OnResumed()
+{
+    auto context = context_weak.lock();
+    if (!context)
+        return;
+
+    at_breakpoint = context->at_breakpoint;
+    emit dataChanged(createIndex(static_cast<int>(active_breakpoint), 0),
+                     createIndex(static_cast<int>(active_breakpoint), 1));
+    active_breakpoint = context->active_breakpoint;
+}
+
+
+GraphicsBreakPointsWidget::GraphicsBreakPointsWidget(std::shared_ptr<Pica::DebugContext> debug_context,
+                                                     QWidget* parent)
+    : QDockWidget(tr("Pica Breakpoints"), parent),
+      Pica::DebugContext::BreakPointObserver(debug_context)
+{
+    setObjectName("PicaBreakPointsWidget");
+
+    status_text = new QLabel(tr("Emulation running"));
+    resume_button = new QPushButton(tr("Resume"));
+    resume_button->setEnabled(false);
+
+    breakpoint_model = new BreakPointModel(debug_context, this);
+    breakpoint_list = new QTreeView;
+    breakpoint_list->setModel(breakpoint_model);
+
+    toggle_breakpoint_button = new QPushButton(tr("Enable"));
+    toggle_breakpoint_button->setEnabled(false);
+
+    qRegisterMetaType<Pica::DebugContext::Event>("Pica::DebugContext::Event");
+
+    connect(resume_button, SIGNAL(clicked()), this, SLOT(OnResumeRequested()));
+
+    connect(this, SIGNAL(BreakPointHit(Pica::DebugContext::Event,void*)),
+            this, SLOT(OnBreakPointHit(Pica::DebugContext::Event,void*)),
+            Qt::BlockingQueuedConnection);
+    connect(this, SIGNAL(Resumed()), this, SLOT(OnResumed()));
+
+    connect(this, SIGNAL(BreakPointHit(Pica::DebugContext::Event,void*)),
+            breakpoint_model, SLOT(OnBreakPointHit(Pica::DebugContext::Event)),
+            Qt::BlockingQueuedConnection);
+    connect(this, SIGNAL(Resumed()), breakpoint_model, SLOT(OnResumed()));
+
+    connect(this, SIGNAL(BreakPointsChanged(const QModelIndex&,const QModelIndex&)),
+            breakpoint_model, SIGNAL(dataChanged(const QModelIndex&,const QModelIndex&)));
+
+    connect(breakpoint_list->selectionModel(), SIGNAL(currentChanged(QModelIndex,QModelIndex)),
+            this, SLOT(OnBreakpointSelectionChanged(QModelIndex)));
+
+    connect(toggle_breakpoint_button, SIGNAL(clicked()), this, SLOT(OnToggleBreakpointEnabled()));
+
+    QWidget* main_widget = new QWidget;
+    auto main_layout = new QVBoxLayout;
+    {
+        auto sub_layout = new QHBoxLayout;
+        sub_layout->addWidget(status_text);
+        sub_layout->addWidget(resume_button);
+        main_layout->addLayout(sub_layout);
+    }
+    main_layout->addWidget(breakpoint_list);
+    main_layout->addWidget(toggle_breakpoint_button);
+    main_widget->setLayout(main_layout);
+
+    setWidget(main_widget);
+}
+
+void GraphicsBreakPointsWidget::OnPicaBreakPointHit(Event event, void* data)
+{
+    // Process in GUI thread
+    emit BreakPointHit(event, data);
+}
+
+void GraphicsBreakPointsWidget::OnBreakPointHit(Pica::DebugContext::Event event, void* data)
+{
+    status_text->setText(tr("Emulation halted at breakpoint"));
+    resume_button->setEnabled(true);
+}
+
+void GraphicsBreakPointsWidget::OnPicaResume()
+{
+    // Process in GUI thread
+    emit Resumed();
+}
+
+void GraphicsBreakPointsWidget::OnResumed()
+{
+    status_text->setText(tr("Emulation running"));
+    resume_button->setEnabled(false);
+}
+
+void GraphicsBreakPointsWidget::OnResumeRequested()
+{
+    if (auto context = context_weak.lock())
+        context->Resume();
+}
+
+void GraphicsBreakPointsWidget::OnBreakpointSelectionChanged(const QModelIndex& index)
+{
+    if (!index.isValid()) {
+        toggle_breakpoint_button->setEnabled(false);
+        return;
+    }
+
+    toggle_breakpoint_button->setEnabled(true);
+    UpdateToggleBreakpointButton(index);
+}
+
+void GraphicsBreakPointsWidget::OnToggleBreakpointEnabled()
+{
+    QModelIndex index = breakpoint_list->selectionModel()->currentIndex();
+    bool new_state = !(breakpoint_model->data(index, BreakPointModel::Role_IsEnabled).toBool());
+
+    breakpoint_model->setData(index, new_state,
+                              BreakPointModel::Role_IsEnabled);
+    UpdateToggleBreakpointButton(index);
+}
+
+void GraphicsBreakPointsWidget::UpdateToggleBreakpointButton(const QModelIndex& index)
+{
+    if (true == breakpoint_model->data(index, BreakPointModel::Role_IsEnabled).toBool()) {
+        toggle_breakpoint_button->setText(tr("Disable"));
+    } else {
+        toggle_breakpoint_button->setText(tr("Enable"));
+    }
+}
diff --git a/src/citra_qt/debugger/graphics_breakpoints.hxx b/src/citra_qt/debugger/graphics_breakpoints.hxx
new file mode 100644
index 000000000..5b9ba324e
--- /dev/null
+++ b/src/citra_qt/debugger/graphics_breakpoints.hxx
@@ -0,0 +1,53 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <memory>
+
+#include <QAbstractListModel>
+#include <QDockWidget>
+
+#include "video_core/debug_utils/debug_utils.h"
+
+class QLabel;
+class QPushButton;
+class QTreeView;
+
+class BreakPointModel;
+
+class GraphicsBreakPointsWidget : public QDockWidget, Pica::DebugContext::BreakPointObserver {
+    Q_OBJECT
+
+    using Event = Pica::DebugContext::Event;
+
+public:
+    GraphicsBreakPointsWidget(std::shared_ptr<Pica::DebugContext> debug_context,
+                              QWidget* parent = nullptr);
+
+    void OnPicaBreakPointHit(Pica::DebugContext::Event event, void* data) override;
+    void OnPicaResume() override;
+
+public slots:
+    void OnBreakPointHit(Pica::DebugContext::Event event, void* data);
+    void OnResumeRequested();
+    void OnResumed();
+    void OnBreakpointSelectionChanged(const QModelIndex&);
+    void OnToggleBreakpointEnabled();
+
+signals:
+    void Resumed();
+    void BreakPointHit(Pica::DebugContext::Event event, void* data);
+    void BreakPointsChanged(const QModelIndex& topLeft, const QModelIndex& bottomRight);
+
+private:
+    void UpdateToggleBreakpointButton(const QModelIndex& index);
+
+    QLabel* status_text;
+    QPushButton* resume_button;
+    QPushButton* toggle_breakpoint_button;
+
+    BreakPointModel* breakpoint_model;
+    QTreeView* breakpoint_list;
+};
diff --git a/src/citra_qt/debugger/graphics_breakpoints_p.hxx b/src/citra_qt/debugger/graphics_breakpoints_p.hxx
new file mode 100644
index 000000000..232bfc863
--- /dev/null
+++ b/src/citra_qt/debugger/graphics_breakpoints_p.hxx
@@ -0,0 +1,38 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <memory>
+
+#include <QAbstractListModel>
+
+#include "video_core/debug_utils/debug_utils.h"
+
+class BreakPointModel : public QAbstractListModel {
+    Q_OBJECT
+
+public:
+    enum {
+        Role_IsEnabled = Qt::UserRole,
+    };
+
+    BreakPointModel(std::shared_ptr<Pica::DebugContext> context, QObject* parent);
+
+    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;
+    QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
+
+    bool setData(const QModelIndex& index, const QVariant& value, int role = Qt::EditRole);
+
+public slots:
+    void OnBreakPointHit(Pica::DebugContext::Event event);
+    void OnResumed();
+
+private:
+    std::weak_ptr<Pica::DebugContext> context_weak;
+    bool at_breakpoint;
+    Pica::DebugContext::Event active_breakpoint;
+};
diff --git a/src/citra_qt/debugger/graphics_cmdlists.cpp b/src/citra_qt/debugger/graphics_cmdlists.cpp
index 71dd166cd..753cc25da 100644
--- a/src/citra_qt/debugger/graphics_cmdlists.cpp
+++ b/src/citra_qt/debugger/graphics_cmdlists.cpp
@@ -1,31 +1,179 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
+#include <QLabel>
 #include <QListView>
+#include <QMainWindow>
 #include <QPushButton>
 #include <QVBoxLayout>
 #include <QTreeView>
+#include <QSpinBox>
+#include <QComboBox>
+
+#include "video_core/pica.h"
+#include "video_core/math.h"
+
+#include "video_core/debug_utils/debug_utils.h"
 
 #include "graphics_cmdlists.hxx"
 
-GPUCommandListModel::GPUCommandListModel(QObject* parent) : QAbstractListModel(parent)
-{
+#include "util/spinbox.hxx"
+
+QImage LoadTexture(u8* src, const Pica::DebugUtils::TextureInfo& info) {
+    QImage decoded_image(info.width, info.height, QImage::Format_ARGB32);
+    for (int y = 0; y < info.height; ++y) {
+        for (int x = 0; x < info.width; ++x) {
+            Math::Vec4<u8> color = Pica::DebugUtils::LookupTexture(src, x, y, info, true);
+            decoded_image.setPixel(x, y, qRgba(color.r(), color.g(), color.b(), color.a()));
+        }
+    }
+
+    return decoded_image;
+}
+
+class TextureInfoWidget : public QWidget {
+public:
+    TextureInfoWidget(u8* src, const Pica::DebugUtils::TextureInfo& info, QWidget* parent = nullptr) : QWidget(parent) {
+        QLabel* image_widget = new QLabel;
+        QPixmap image_pixmap = QPixmap::fromImage(LoadTexture(src, info));
+        image_pixmap = image_pixmap.scaled(200, 100, Qt::KeepAspectRatio, Qt::SmoothTransformation);
+        image_widget->setPixmap(image_pixmap);
+
+        QVBoxLayout* layout = new QVBoxLayout;
+        layout->addWidget(image_widget);
+        setLayout(layout);
+    }
+};
+
+TextureInfoDockWidget::TextureInfoDockWidget(const Pica::DebugUtils::TextureInfo& info, QWidget* parent)
+    : QDockWidget(tr("Texture 0x%1").arg(info.physical_address, 8, 16, QLatin1Char('0'))),
+      info(info) {
+
+    QWidget* main_widget = new QWidget;
+
+    QLabel* image_widget = new QLabel;
+
+    connect(this, SIGNAL(UpdatePixmap(const QPixmap&)), image_widget, SLOT(setPixmap(const QPixmap&)));
+
+    CSpinBox* phys_address_spinbox = new CSpinBox;
+    phys_address_spinbox->SetBase(16);
+    phys_address_spinbox->SetRange(0, 0xFFFFFFFF);
+    phys_address_spinbox->SetPrefix("0x");
+    phys_address_spinbox->SetValue(info.physical_address);
+    connect(phys_address_spinbox, SIGNAL(ValueChanged(qint64)), this, SLOT(OnAddressChanged(qint64)));
+
+    QComboBox* format_choice = new QComboBox;
+    format_choice->addItem(tr("RGBA8"));
+    format_choice->addItem(tr("RGB8"));
+    format_choice->addItem(tr("RGBA5551"));
+    format_choice->addItem(tr("RGB565"));
+    format_choice->addItem(tr("RGBA4"));
+    format_choice->addItem(tr("IA8"));
+    format_choice->addItem(tr("UNK6"));
+    format_choice->addItem(tr("I8"));
+    format_choice->addItem(tr("A8"));
+    format_choice->addItem(tr("IA4"));
+    format_choice->addItem(tr("UNK10"));
+    format_choice->addItem(tr("A4"));
+    format_choice->setCurrentIndex(static_cast<int>(info.format));
+    connect(format_choice, SIGNAL(currentIndexChanged(int)), this, SLOT(OnFormatChanged(int)));
+
+    QSpinBox* width_spinbox = new QSpinBox;
+    width_spinbox->setMaximum(65535);
+    width_spinbox->setValue(info.width);
+    connect(width_spinbox, SIGNAL(valueChanged(int)), this, SLOT(OnWidthChanged(int)));
+
+    QSpinBox* height_spinbox = new QSpinBox;
+    height_spinbox->setMaximum(65535);
+    height_spinbox->setValue(info.height);
+    connect(height_spinbox, SIGNAL(valueChanged(int)), this, SLOT(OnHeightChanged(int)));
+
+    QSpinBox* stride_spinbox = new QSpinBox;
+    stride_spinbox->setMaximum(65535 * 4);
+    stride_spinbox->setValue(info.stride);
+    connect(stride_spinbox, SIGNAL(valueChanged(int)), this, SLOT(OnStrideChanged(int)));
+
+    QVBoxLayout* main_layout = new QVBoxLayout;
+    main_layout->addWidget(image_widget);
+
+    {
+        QHBoxLayout* sub_layout = new QHBoxLayout;
+        sub_layout->addWidget(new QLabel(tr("Source Address:")));
+        sub_layout->addWidget(phys_address_spinbox);
+        main_layout->addLayout(sub_layout);
+    }
+
+    {
+        QHBoxLayout* sub_layout = new QHBoxLayout;
+        sub_layout->addWidget(new QLabel(tr("Format")));
+        sub_layout->addWidget(format_choice);
+        main_layout->addLayout(sub_layout);
+    }
+
+    {
+        QHBoxLayout* sub_layout = new QHBoxLayout;
+        sub_layout->addWidget(new QLabel(tr("Width:")));
+        sub_layout->addWidget(width_spinbox);
+        sub_layout->addStretch();
+        sub_layout->addWidget(new QLabel(tr("Height:")));
+        sub_layout->addWidget(height_spinbox);
+        sub_layout->addStretch();
+        sub_layout->addWidget(new QLabel(tr("Stride:")));
+        sub_layout->addWidget(stride_spinbox);
+        main_layout->addLayout(sub_layout);
+    }
+
+    main_widget->setLayout(main_layout);
+
+    emit UpdatePixmap(ReloadPixmap());
+
+    setWidget(main_widget);
+}
+
+void TextureInfoDockWidget::OnAddressChanged(qint64 value) {
+    info.physical_address = value;
+    emit UpdatePixmap(ReloadPixmap());
+}
 
+void TextureInfoDockWidget::OnFormatChanged(int value) {
+    info.format = static_cast<Pica::Regs::TextureFormat>(value);
+    emit UpdatePixmap(ReloadPixmap());
 }
 
-int GPUCommandListModel::rowCount(const QModelIndex& parent) const
-{
+void TextureInfoDockWidget::OnWidthChanged(int value) {
+    info.width = value;
+    emit UpdatePixmap(ReloadPixmap());
+}
+
+void TextureInfoDockWidget::OnHeightChanged(int value) {
+    info.height = value;
+    emit UpdatePixmap(ReloadPixmap());
+}
+
+void TextureInfoDockWidget::OnStrideChanged(int value) {
+    info.stride = value;
+    emit UpdatePixmap(ReloadPixmap());
+}
+
+QPixmap TextureInfoDockWidget::ReloadPixmap() const {
+    u8* src = Memory::GetPointer(Pica::PAddrToVAddr(info.physical_address));
+    return QPixmap::fromImage(LoadTexture(src, info));
+}
+
+GPUCommandListModel::GPUCommandListModel(QObject* parent) : QAbstractListModel(parent) {
+
+}
+
+int GPUCommandListModel::rowCount(const QModelIndex& parent) const {
     return pica_trace.writes.size();
 }
 
-int GPUCommandListModel::columnCount(const QModelIndex& parent) const
-{
+int GPUCommandListModel::columnCount(const QModelIndex& parent) const {
     return 2;
 }
 
-QVariant GPUCommandListModel::data(const QModelIndex& index, int role) const
-{
+QVariant GPUCommandListModel::data(const QModelIndex& index, int role) const {
     if (!index.isValid())
         return QVariant();
 
@@ -36,21 +184,39 @@ QVariant GPUCommandListModel::data(const QModelIndex& index, int role) const
     if (role == Qt::DisplayRole) {
         QString content;
         if (index.column() == 0) {
-            content = QString::fromLatin1(Pica::Regs::GetCommandName(cmd.cmd_id).c_str());
+            QString content = QString::fromLatin1(Pica::Regs::GetCommandName(cmd.cmd_id).c_str());
             content.append(" ");
+            return content;
         } else if (index.column() == 1) {
-            content.append(QString("%1 ").arg(cmd.hex, 8, 16, QLatin1Char('0')));
+            QString content = QString("%1 ").arg(cmd.hex, 8, 16, QLatin1Char('0'));
             content.append(QString("%1 ").arg(val, 8, 16, QLatin1Char('0')));
+            return content;
         }
+    } else if (role == CommandIdRole) {
+        return QVariant::fromValue<int>(cmd.cmd_id.Value());
+    }
 
-        return QVariant(content);
+    return QVariant();
+}
+
+QVariant GPUCommandListModel::headerData(int section, Qt::Orientation orientation, int role) const {
+    switch(role) {
+    case Qt::DisplayRole:
+    {
+        if (section == 0) {
+            return tr("Command Name");
+        } else if (section == 1) {
+            return tr("Data");
+        }
+
+        break;
+    }
     }
 
     return QVariant();
 }
 
-void GPUCommandListModel::OnPicaTraceFinished(const Pica::DebugUtils::PicaTrace& trace)
-{
+void GPUCommandListModel::OnPicaTraceFinished(const Pica::DebugUtils::PicaTrace& trace) {
     beginResetModel();
 
     pica_trace = trace;
@@ -58,38 +224,107 @@ void GPUCommandListModel::OnPicaTraceFinished(const Pica::DebugUtils::PicaTrace&
     endResetModel();
 }
 
+#define COMMAND_IN_RANGE(cmd_id, reg_name)   \
+    (cmd_id >= PICA_REG_INDEX(reg_name) &&   \
+     cmd_id < PICA_REG_INDEX(reg_name) + sizeof(decltype(Pica::registers.reg_name)) / 4)
 
-GPUCommandListWidget::GPUCommandListWidget(QWidget* parent) : QDockWidget(tr("Pica Command List"), parent)
-{
+void GPUCommandListWidget::OnCommandDoubleClicked(const QModelIndex& index) {
+    const int command_id = list_widget->model()->data(index, GPUCommandListModel::CommandIdRole).toInt();
+    if (COMMAND_IN_RANGE(command_id, texture0) ||
+        COMMAND_IN_RANGE(command_id, texture1) ||
+        COMMAND_IN_RANGE(command_id, texture2)) {
+
+        unsigned index;
+        if (COMMAND_IN_RANGE(command_id, texture0)) {
+            index = 0;
+        } else if (COMMAND_IN_RANGE(command_id, texture1)) {
+            index = 1;
+        } else {
+            index = 2;
+        }
+        auto config = Pica::registers.GetTextures()[index].config;
+        auto format = Pica::registers.GetTextures()[index].format;
+        auto info = Pica::DebugUtils::TextureInfo::FromPicaRegister(config, format);
+
+        // TODO: Instead, emit a signal here to be caught by the main window widget.
+        auto main_window = static_cast<QMainWindow*>(parent());
+        main_window->tabifyDockWidget(this, new TextureInfoDockWidget(info, main_window));
+    }
+}
+
+void GPUCommandListWidget::SetCommandInfo(const QModelIndex& index) {
+    QWidget* new_info_widget;
+
+    const int command_id = list_widget->model()->data(index, GPUCommandListModel::CommandIdRole).toInt();
+    if (COMMAND_IN_RANGE(command_id, texture0) ||
+        COMMAND_IN_RANGE(command_id, texture1) ||
+        COMMAND_IN_RANGE(command_id, texture2)) {
+
+        unsigned index;
+        if (COMMAND_IN_RANGE(command_id, texture0)) {
+            index = 0;
+        } else if (COMMAND_IN_RANGE(command_id, texture1)) {
+            index = 1;
+        } else {
+            index = 2;
+        }
+        auto config = Pica::registers.GetTextures()[index].config;
+        auto format = Pica::registers.GetTextures()[index].format;
+
+        auto info = Pica::DebugUtils::TextureInfo::FromPicaRegister(config, format);
+        u8* src = Memory::GetPointer(Pica::PAddrToVAddr(config.GetPhysicalAddress()));
+        new_info_widget = new TextureInfoWidget(src, info);
+    } else {
+        new_info_widget = new QWidget;
+    }
+
+    widget()->layout()->removeWidget(command_info_widget);
+    delete command_info_widget;
+    widget()->layout()->addWidget(new_info_widget);
+    command_info_widget = new_info_widget;
+}
+#undef COMMAND_IN_RANGE
+
+GPUCommandListWidget::GPUCommandListWidget(QWidget* parent) : QDockWidget(tr("Pica Command List"), parent) {
+    setObjectName("Pica Command List");
     GPUCommandListModel* model = new GPUCommandListModel(this);
 
     QWidget* main_widget = new QWidget;
 
-    QTreeView* list_widget = new QTreeView;
+    list_widget = new QTreeView;
     list_widget->setModel(model);
     list_widget->setFont(QFont("monospace"));
     list_widget->setRootIsDecorated(false);
 
-    QPushButton* toggle_tracing = new QPushButton(tr("Start Tracing"));
+    connect(list_widget->selectionModel(), SIGNAL(currentChanged(const QModelIndex&,const QModelIndex&)),
+            this, SLOT(SetCommandInfo(const QModelIndex&)));
+    connect(list_widget, SIGNAL(doubleClicked(const QModelIndex&)),
+            this, SLOT(OnCommandDoubleClicked(const QModelIndex&)));
+
+    toggle_tracing = new QPushButton(tr("Start Tracing"));
 
     connect(toggle_tracing, SIGNAL(clicked()), this, SLOT(OnToggleTracing()));
     connect(this, SIGNAL(TracingFinished(const Pica::DebugUtils::PicaTrace&)),
             model, SLOT(OnPicaTraceFinished(const Pica::DebugUtils::PicaTrace&)));
 
+    command_info_widget = new QWidget;
+
     QVBoxLayout* main_layout = new QVBoxLayout;
     main_layout->addWidget(list_widget);
     main_layout->addWidget(toggle_tracing);
+    main_layout->addWidget(command_info_widget);
     main_widget->setLayout(main_layout);
 
     setWidget(main_widget);
 }
 
-void GPUCommandListWidget::OnToggleTracing()
-{
+void GPUCommandListWidget::OnToggleTracing() {
     if (!Pica::DebugUtils::IsPicaTracing()) {
         Pica::DebugUtils::StartPicaTracing();
+        toggle_tracing->setText(tr("Finish Tracing"));
     } else {
         pica_trace = Pica::DebugUtils::FinishPicaTracing();
         emit TracingFinished(*pica_trace);
+        toggle_tracing->setText(tr("Start Tracing"));
     }
 }
diff --git a/src/citra_qt/debugger/graphics_cmdlists.hxx b/src/citra_qt/debugger/graphics_cmdlists.hxx
index 1523e724f..a465d044c 100644
--- a/src/citra_qt/debugger/graphics_cmdlists.hxx
+++ b/src/citra_qt/debugger/graphics_cmdlists.hxx
@@ -1,5 +1,5 @@
 // Copyright 2014 Citra Emulator Project
-// Licensed under GPLv2
+// Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
 #pragma once
@@ -10,16 +10,24 @@
 #include "video_core/gpu_debugger.h"
 #include "video_core/debug_utils/debug_utils.h"
 
+class QPushButton;
+class QTreeView;
+
 class GPUCommandListModel : public QAbstractListModel
 {
     Q_OBJECT
 
 public:
+    enum {
+        CommandIdRole = Qt::UserRole,
+    };
+
     GPUCommandListModel(QObject* parent);
 
     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;
+    QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
 
 public slots:
     void OnPicaTraceFinished(const Pica::DebugUtils::PicaTrace& trace);
@@ -37,10 +45,39 @@ public:
 
 public slots:
     void OnToggleTracing();
+    void OnCommandDoubleClicked(const QModelIndex&);
+
+    void SetCommandInfo(const QModelIndex&);
 
 signals:
     void TracingFinished(const Pica::DebugUtils::PicaTrace&);
 
 private:
     std::unique_ptr<Pica::DebugUtils::PicaTrace> pica_trace;
+
+    QTreeView* list_widget;
+    QWidget* command_info_widget;
+    QPushButton* toggle_tracing;
+};
+
+class TextureInfoDockWidget : public QDockWidget {
+    Q_OBJECT
+
+public:
+    TextureInfoDockWidget(const Pica::DebugUtils::TextureInfo& info, QWidget* parent = nullptr);
+
+signals:
+    void UpdatePixmap(const QPixmap& pixmap);
+
+private slots:
+    void OnAddressChanged(qint64 value);
+    void OnFormatChanged(int value);
+    void OnWidthChanged(int value);
+    void OnHeightChanged(int value);
+    void OnStrideChanged(int value);
+
+private:
+    QPixmap ReloadPixmap() const;
+
+    Pica::DebugUtils::TextureInfo info;
 };
diff --git a/src/citra_qt/debugger/graphics_framebuffer.cpp b/src/citra_qt/debugger/graphics_framebuffer.cpp
new file mode 100644
index 000000000..dd41c3880
--- /dev/null
+++ b/src/citra_qt/debugger/graphics_framebuffer.cpp
@@ -0,0 +1,283 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <QBoxLayout>
+#include <QComboBox>
+#include <QDebug>
+#include <QLabel>
+#include <QMetaType>
+#include <QPushButton>
+#include <QSpinBox>
+
+#include "video_core/pica.h"
+
+#include "graphics_framebuffer.hxx"
+
+#include "util/spinbox.hxx"
+
+BreakPointObserverDock::BreakPointObserverDock(std::shared_ptr<Pica::DebugContext> debug_context,
+                                               const QString& title, QWidget* parent)
+    : QDockWidget(title, parent), BreakPointObserver(debug_context)
+{
+    qRegisterMetaType<Pica::DebugContext::Event>("Pica::DebugContext::Event");
+
+    connect(this, SIGNAL(Resumed()), this, SLOT(OnResumed()));
+
+    // NOTE: This signal is emitted from a non-GUI thread, but connect() takes
+    //       care of delaying its handling to the GUI thread.
+    connect(this, SIGNAL(BreakPointHit(Pica::DebugContext::Event,void*)),
+            this, SLOT(OnBreakPointHit(Pica::DebugContext::Event,void*)),
+            Qt::BlockingQueuedConnection);
+}
+
+void BreakPointObserverDock::OnPicaBreakPointHit(Pica::DebugContext::Event event, void* data)
+{
+    emit BreakPointHit(event, data);
+}
+
+void BreakPointObserverDock::OnPicaResume()
+{
+    emit Resumed();
+}
+
+
+GraphicsFramebufferWidget::GraphicsFramebufferWidget(std::shared_ptr<Pica::DebugContext> debug_context,
+                                                     QWidget* parent)
+    : BreakPointObserverDock(debug_context, tr("Pica Framebuffer"), parent),
+      framebuffer_source(Source::PicaTarget)
+{
+    setObjectName("PicaFramebuffer");
+
+    framebuffer_source_list = new QComboBox;
+    framebuffer_source_list->addItem(tr("Active Render Target"));
+    framebuffer_source_list->addItem(tr("Custom"));
+    framebuffer_source_list->setCurrentIndex(static_cast<int>(framebuffer_source));
+
+    framebuffer_address_control = new CSpinBox;
+    framebuffer_address_control->SetBase(16);
+    framebuffer_address_control->SetRange(0, 0xFFFFFFFF);
+    framebuffer_address_control->SetPrefix("0x");
+
+    framebuffer_width_control = new QSpinBox;
+    framebuffer_width_control->setMinimum(1);
+    framebuffer_width_control->setMaximum(std::numeric_limits<int>::max()); // TODO: Find actual maximum
+
+    framebuffer_height_control = new QSpinBox;
+    framebuffer_height_control->setMinimum(1);
+    framebuffer_height_control->setMaximum(std::numeric_limits<int>::max()); // TODO: Find actual maximum
+
+    framebuffer_format_control = new QComboBox;
+    framebuffer_format_control->addItem(tr("RGBA8"));
+    framebuffer_format_control->addItem(tr("RGB8"));
+    framebuffer_format_control->addItem(tr("RGBA5551"));
+    framebuffer_format_control->addItem(tr("RGB565"));
+    framebuffer_format_control->addItem(tr("RGBA4"));
+
+    // TODO: This QLabel should shrink the image to the available space rather than just expanding...
+    framebuffer_picture_label = new QLabel;
+
+    auto enlarge_button = new QPushButton(tr("Enlarge"));
+
+    // Connections
+    connect(this, SIGNAL(Update()), this, SLOT(OnUpdate()));
+    connect(framebuffer_source_list, SIGNAL(currentIndexChanged(int)), this, SLOT(OnFramebufferSourceChanged(int)));
+    connect(framebuffer_address_control, SIGNAL(ValueChanged(qint64)), this, SLOT(OnFramebufferAddressChanged(qint64)));
+    connect(framebuffer_width_control, SIGNAL(valueChanged(int)), this, SLOT(OnFramebufferWidthChanged(int)));
+    connect(framebuffer_height_control, SIGNAL(valueChanged(int)), this, SLOT(OnFramebufferHeightChanged(int)));
+    connect(framebuffer_format_control, SIGNAL(currentIndexChanged(int)), this, SLOT(OnFramebufferFormatChanged(int)));
+
+    auto main_widget = new QWidget;
+    auto main_layout = new QVBoxLayout;
+    {
+        auto sub_layout = new QHBoxLayout;
+        sub_layout->addWidget(new QLabel(tr("Source:")));
+        sub_layout->addWidget(framebuffer_source_list);
+        main_layout->addLayout(sub_layout);
+    }
+    {
+        auto sub_layout = new QHBoxLayout;
+        sub_layout->addWidget(new QLabel(tr("Virtual Address:")));
+        sub_layout->addWidget(framebuffer_address_control);
+        main_layout->addLayout(sub_layout);
+    }
+    {
+        auto sub_layout = new QHBoxLayout;
+        sub_layout->addWidget(new QLabel(tr("Width:")));
+        sub_layout->addWidget(framebuffer_width_control);
+        main_layout->addLayout(sub_layout);
+    }
+    {
+        auto sub_layout = new QHBoxLayout;
+        sub_layout->addWidget(new QLabel(tr("Height:")));
+        sub_layout->addWidget(framebuffer_height_control);
+        main_layout->addLayout(sub_layout);
+    }
+    {
+        auto sub_layout = new QHBoxLayout;
+        sub_layout->addWidget(new QLabel(tr("Format:")));
+        sub_layout->addWidget(framebuffer_format_control);
+        main_layout->addLayout(sub_layout);
+    }
+    main_layout->addWidget(framebuffer_picture_label);
+    main_layout->addWidget(enlarge_button);
+    main_widget->setLayout(main_layout);
+    setWidget(main_widget);
+
+    // Load current data - TODO: Make sure this works when emulation is not running
+    if (debug_context && debug_context->at_breakpoint)
+        emit Update();
+    widget()->setEnabled(false); // TODO: Only enable if currently at breakpoint
+}
+
+void GraphicsFramebufferWidget::OnBreakPointHit(Pica::DebugContext::Event event, void* data)
+{
+    emit Update();
+    widget()->setEnabled(true);
+}
+
+void GraphicsFramebufferWidget::OnResumed()
+{
+    widget()->setEnabled(false);
+}
+
+void GraphicsFramebufferWidget::OnFramebufferSourceChanged(int new_value)
+{
+    framebuffer_source = static_cast<Source>(new_value);
+    emit Update();
+}
+
+void GraphicsFramebufferWidget::OnFramebufferAddressChanged(qint64 new_value)
+{
+    if (framebuffer_address != new_value) {
+        framebuffer_address = static_cast<unsigned>(new_value);
+
+        framebuffer_source_list->setCurrentIndex(static_cast<int>(Source::Custom));
+        emit Update();
+    }
+}
+
+void GraphicsFramebufferWidget::OnFramebufferWidthChanged(int new_value)
+{
+    if (framebuffer_width != new_value) {
+        framebuffer_width = new_value;
+
+        framebuffer_source_list->setCurrentIndex(static_cast<int>(Source::Custom));
+        emit Update();
+    }
+}
+
+void GraphicsFramebufferWidget::OnFramebufferHeightChanged(int new_value)
+{
+    if (framebuffer_height != new_value) {
+        framebuffer_height = new_value;
+
+        framebuffer_source_list->setCurrentIndex(static_cast<int>(Source::Custom));
+        emit Update();
+    }
+}
+
+void GraphicsFramebufferWidget::OnFramebufferFormatChanged(int new_value)
+{
+    if (framebuffer_format != static_cast<Format>(new_value)) {
+        framebuffer_format = static_cast<Format>(new_value);
+
+        framebuffer_source_list->setCurrentIndex(static_cast<int>(Source::Custom));
+        emit Update();
+    }
+}
+
+void GraphicsFramebufferWidget::OnUpdate()
+{
+    QPixmap pixmap;
+
+    switch (framebuffer_source) {
+    case Source::PicaTarget:
+    {
+        // TODO: Store a reference to the registers in the debug context instead of accessing them directly...
+
+        auto framebuffer = Pica::registers.framebuffer;
+        using Framebuffer = decltype(framebuffer);
+
+        framebuffer_address = framebuffer.GetColorBufferPhysicalAddress();
+        framebuffer_width = framebuffer.GetWidth();
+        framebuffer_height = framebuffer.GetHeight();
+        framebuffer_format = static_cast<Format>(framebuffer.color_format);
+
+        break;
+    }
+
+    case Source::Custom:
+    {
+        // Keep user-specified values
+        break;
+    }
+
+    default:
+        qDebug() << "Unknown framebuffer source " << static_cast<int>(framebuffer_source);
+        break;
+    }
+
+    // TODO: Implement a good way to visualize alpha components!
+    // TODO: Unify this decoding code with the texture decoder
+    switch (framebuffer_format) {
+    case Format::RGBA8:
+    {
+        QImage decoded_image(framebuffer_width, framebuffer_height, QImage::Format_ARGB32);
+        u32* color_buffer = (u32*)Memory::GetPointer(Pica::PAddrToVAddr(framebuffer_address));
+        for (unsigned y = 0; y < framebuffer_height; ++y) {
+            for (unsigned x = 0; x < framebuffer_width; ++x) {
+                u32 value = *(color_buffer + x + y * framebuffer_width);
+
+                decoded_image.setPixel(x, y, qRgba((value >> 16) & 0xFF, (value >> 8) & 0xFF, value & 0xFF, 255/*value >> 24*/));
+            }
+        }
+        pixmap = QPixmap::fromImage(decoded_image);
+        break;
+    }
+
+    case Format::RGB8:
+    {
+        QImage decoded_image(framebuffer_width, framebuffer_height, QImage::Format_ARGB32);
+        u8* color_buffer = Memory::GetPointer(Pica::PAddrToVAddr(framebuffer_address));
+        for (unsigned y = 0; y < framebuffer_height; ++y) {
+            for (unsigned x = 0; x < framebuffer_width; ++x) {
+                u8* pixel_pointer = color_buffer + x * 3 + y * 3 * framebuffer_width;
+
+                decoded_image.setPixel(x, y, qRgba(pixel_pointer[0], pixel_pointer[1], pixel_pointer[2], 255/*value >> 24*/));
+            }
+        }
+        pixmap = QPixmap::fromImage(decoded_image);
+        break;
+    }
+
+    case Format::RGBA5551:
+    {
+        QImage decoded_image(framebuffer_width, framebuffer_height, QImage::Format_ARGB32);
+        u32* color_buffer = (u32*)Memory::GetPointer(Pica::PAddrToVAddr(framebuffer_address));
+        for (unsigned y = 0; y < framebuffer_height; ++y) {
+            for (unsigned x = 0; x < framebuffer_width; ++x) {
+                u16 value = *(u16*)(((u8*)color_buffer) + x * 2 + y * framebuffer_width * 2);
+                u8 r = (value >> 11) & 0x1F;
+                u8 g = (value >> 6) & 0x1F;
+                u8 b = (value >> 1) & 0x1F;
+                u8 a = value & 1;
+
+                decoded_image.setPixel(x, y, qRgba(r, g, b, 255/*a*/));
+            }
+        }
+        pixmap = QPixmap::fromImage(decoded_image);
+        break;
+    }
+
+    default:
+        qDebug() << "Unknown fb color format " << static_cast<int>(framebuffer_format);
+        break;
+    }
+
+    framebuffer_address_control->SetValue(framebuffer_address);
+    framebuffer_width_control->setValue(framebuffer_width);
+    framebuffer_height_control->setValue(framebuffer_height);
+    framebuffer_format_control->setCurrentIndex(static_cast<int>(framebuffer_format));
+    framebuffer_picture_label->setPixmap(pixmap);
+}
diff --git a/src/citra_qt/debugger/graphics_framebuffer.hxx b/src/citra_qt/debugger/graphics_framebuffer.hxx
new file mode 100644
index 000000000..56215761e
--- /dev/null
+++ b/src/citra_qt/debugger/graphics_framebuffer.hxx
@@ -0,0 +1,92 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <QDockWidget>
+
+#include "video_core/debug_utils/debug_utils.h"
+
+class QComboBox;
+class QLabel;
+class QSpinBox;
+
+class CSpinBox;
+
+// Utility class which forwards calls to OnPicaBreakPointHit and OnPicaResume to public slots.
+// This is because the Pica breakpoint callbacks are called from a non-GUI thread, while
+// the widget usually wants to perform reactions in the GUI thread.
+class BreakPointObserverDock : public QDockWidget, Pica::DebugContext::BreakPointObserver {
+    Q_OBJECT
+
+public:
+    BreakPointObserverDock(std::shared_ptr<Pica::DebugContext> debug_context, const QString& title,
+                           QWidget* parent = nullptr);
+
+    void OnPicaBreakPointHit(Pica::DebugContext::Event event, void* data) override;
+    void OnPicaResume() override;
+
+private slots:
+    virtual void OnBreakPointHit(Pica::DebugContext::Event event, void* data) = 0;
+    virtual void OnResumed() = 0;
+
+signals:
+    void Resumed();
+    void BreakPointHit(Pica::DebugContext::Event event, void* data);
+};
+
+class GraphicsFramebufferWidget : public BreakPointObserverDock {
+    Q_OBJECT
+
+    using Event = Pica::DebugContext::Event;
+
+    enum class Source {
+        PicaTarget = 0,
+        Custom = 1,
+
+        // TODO: Add GPU framebuffer sources!
+    };
+
+    enum class Format {
+        RGBA8    = 0,
+        RGB8     = 1,
+        RGBA5551 = 2,
+        RGB565   = 3,
+        RGBA4    = 4,
+    };
+
+public:
+    GraphicsFramebufferWidget(std::shared_ptr<Pica::DebugContext> debug_context, QWidget* parent = nullptr);
+
+public slots:
+    void OnFramebufferSourceChanged(int new_value);
+    void OnFramebufferAddressChanged(qint64 new_value);
+    void OnFramebufferWidthChanged(int new_value);
+    void OnFramebufferHeightChanged(int new_value);
+    void OnFramebufferFormatChanged(int new_value);
+    void OnUpdate();
+
+private slots:
+    void OnBreakPointHit(Pica::DebugContext::Event event, void* data) override;
+    void OnResumed() override;
+
+signals:
+    void Update();
+
+private:
+
+    QComboBox* framebuffer_source_list;
+    CSpinBox* framebuffer_address_control;
+    QSpinBox* framebuffer_width_control;
+    QSpinBox* framebuffer_height_control;
+    QComboBox* framebuffer_format_control;
+
+    QLabel* framebuffer_picture_label;
+
+    Source framebuffer_source;
+    unsigned framebuffer_address;
+    unsigned framebuffer_width;
+    unsigned framebuffer_height;
+    Format framebuffer_format;
+};