Refine command list debugging functionality and its qt interface.

src/citra_qt/debugger/graphics_cmdlists.cpp

@@ -3,18 +3,57 @@
 // Refer to the license.txt file included.
 
 #include "graphics_cmdlists.hxx"
-#include <QListView>
+#include <QTreeView>
 
 extern GraphicsDebugger g_debugger;
 
-GPUCommandListModel::GPUCommandListModel(QObject* parent) : QAbstractListModel(parent), row_count(0)
+GPUCommandListModel::GPUCommandListModel(QObject* parent) : QAbstractItemModel(parent)
 {
+    root_item = new TreeItem(TreeItem::ROOT, 0, NULL, this);
+
     connect(this, SIGNAL(CommandListCalled()), this, SLOT(OnCommandListCalledInternal()), Qt::UniqueConnection);
 }
 
+QModelIndex GPUCommandListModel::index(int row, int column, const QModelIndex& parent) const
+{
+    TreeItem* item;
+
+    if (!parent.isValid()) {
+        item = root_item;
+    } else {
+        item = (TreeItem*)parent.internalPointer();
+    }
+
+    return createIndex(row, column, item->children[row]);
+}
+
+QModelIndex GPUCommandListModel::parent(const QModelIndex& child) const
+{
+    if (!child.isValid())
+        return QModelIndex();
+
+    TreeItem* item = (TreeItem*)child.internalPointer();
+
+    if (item->parent == NULL)
+        return QModelIndex();
+
+    return createIndex(item->parent->index, 0, item->parent);
+}
+
 int GPUCommandListModel::rowCount(const QModelIndex& parent) const
 {
-    return row_count;
+    TreeItem* item;
+    if (!parent.isValid()) {
+        item = root_item;
+    } else {
+        item = (TreeItem*)parent.internalPointer();
+    }
+    return item->children.size();
+}
+
+int GPUCommandListModel::columnCount(const QModelIndex& parent) const
+{
+    return 1;
 }
 
 QVariant GPUCommandListModel::data(const QModelIndex& index, int role) const
@@ -22,19 +61,33 @@ QVariant GPUCommandListModel::data(const QModelIndex& index, int role) const
     if (!index.isValid())
         return QVariant();
 
-    int idx = index.row();
-    if (role == Qt::DisplayRole)
+    const TreeItem* item = (const TreeItem*)index.internalPointer();
+
+    if (item->type == TreeItem::COMMAND_LIST)
     {
-        QString content;
-        const GraphicsDebugger::PicaCommandList& cmdlist = command_list[idx].second;
-        for (int i = 0; i < cmdlist.size(); ++i)
+        const GraphicsDebugger::PicaCommandList& cmdlist = command_lists[item->index].second;
+        u32 address = command_lists[item->index].first;
+
+        if (role == Qt::DisplayRole)
         {
-            const GraphicsDebugger::PicaCommand& cmd = cmdlist[i];
+            return QVariant(QString("0x%1 bytes at 0x%2").arg(cmdlist.size(), 0, 16).arg(address, 8, 16, QLatin1Char('0')));
+        }
+    }
+    else
+    {
+        // index refers to a specific command
+        const GraphicsDebugger::PicaCommandList& cmdlist = command_lists[item->parent->index].second;
+        const GraphicsDebugger::PicaCommand& cmd = cmdlist[item->index];
+
+        if (role == Qt::DisplayRole) {
+            QString content;
             for (int j = 0; j < cmd.size(); ++j)
                 content.append(QString("%1 ").arg(cmd[j], 8, 16, QLatin1Char('0')));
+
+            return QVariant(content);
         }
-        return QVariant(content);
     }
+
     return QVariant();
 }
 
@@ -48,8 +101,22 @@ void GPUCommandListModel::OnCommandListCalledInternal()
 {
     beginResetModel();
 
-    command_list = GetDebugger()->GetCommandLists();
-    row_count = command_list.size();
+    command_lists = GetDebugger()->GetCommandLists();
+
+    // delete root item and rebuild tree
+    delete root_item;
+    root_item = new TreeItem(TreeItem::ROOT, 0, NULL, this);
+
+    for (int command_list_idx = 0; command_list_idx < command_lists.size(); ++command_list_idx) {
+        TreeItem* command_list_item = new TreeItem(TreeItem::COMMAND_LIST, command_list_idx, root_item, root_item);
+        root_item->children.push_back(command_list_item);
+
+        const GraphicsDebugger::PicaCommandList& command_list = command_lists[command_list_idx].second;
+        for (int command_idx = 0; command_idx < command_list.size(); ++command_idx) {
+            TreeItem* command_item = new TreeItem(TreeItem::COMMAND, command_idx, command_list_item, command_list_item);
+            command_list_item->children.push_back(command_item);
+        }
+    }
 
     endResetModel();
 }
@@ -59,7 +126,8 @@ GPUCommandListWidget::GPUCommandListWidget(QWidget* parent) : QDockWidget(tr("Pi
     GPUCommandListModel* model = new GPUCommandListModel(this);
     g_debugger.RegisterObserver(model);
 
-    QListView* list_widget = new QListView;
-    list_widget->setModel(model);
-    setWidget(list_widget);
+    QTreeView* tree_widget = new QTreeView;
+    tree_widget->setModel(model);
+    tree_widget->setFont(QFont("monospace"));
+    setWidget(tree_widget);
 }

src/citra_qt/debugger/graphics_cmdlists.hxx

@@ -4,18 +4,22 @@
 
 #pragma once
 
-#include <QAbstractListModel>
+#include <QAbstractItemModel>
 #include <QDockWidget>
 
 #include "video_core/gpu_debugger.h"
 
-class GPUCommandListModel : public QAbstractListModel, public GraphicsDebugger::DebuggerObserver
+// TODO: Rename class, since it's not actually a list model anymore...
+class GPUCommandListModel : public QAbstractItemModel, public GraphicsDebugger::DebuggerObserver
 {
     Q_OBJECT
 
 public:
     GPUCommandListModel(QObject* parent);
 
+    QModelIndex index(int row, int column, const QModelIndex& parent = QModelIndex()) const;
+    QModelIndex parent(const QModelIndex& child) const;
+    int columnCount(const QModelIndex& parent = QModelIndex()) const;
     int rowCount(const QModelIndex& parent = QModelIndex()) const override;
     QVariant data(const QModelIndex& index, int role = Qt::DisplayRole) const override;
 
@@ -29,8 +33,24 @@ signals:
     void CommandListCalled();
 
 private:
-    int row_count;
-    std::vector<std::pair<u32,GraphicsDebugger::PicaCommandList>> command_list;
+    struct TreeItem : public QObject
+    {
+        enum Type {
+            ROOT,
+            COMMAND_LIST,
+            COMMAND
+        };
+
+        TreeItem(Type type, int index, TreeItem* item_parent, QObject* parent) : QObject(parent), type(type), index(index), parent(item_parent) {}
+
+        Type type;
+        int index;
+        std::vector<TreeItem*> children;
+        TreeItem* parent;
+    };
+
+    std::vector<std::pair<u32,GraphicsDebugger::PicaCommandList>> command_lists;
+    TreeItem* root_item;
 };
 
 class GPUCommandListWidget : public QDockWidget

src/video_core/gpu_debugger.h

@@ -22,7 +22,8 @@ public:
     {
         Pica::CommandHeader& GetHeader()
         {
-            return *(Pica::CommandHeader*)&(front());
+            u32& val = at(1);
+            return *(Pica::CommandHeader*)&val;
         }
     };
 
@@ -90,14 +91,20 @@ public:
 
     void CommandListCalled(u32 address, u32* command_list, u32 size_in_words)
     {
-        // TODO: Decoding fun
-
-        // For now, just treating the whole command list as a single command
         PicaCommandList cmdlist;
-        cmdlist.push_back(PicaCommand());
-        auto& cmd = cmdlist[0];
-        cmd.reserve(size_in_words);
-        std::copy(command_list, command_list+size_in_words, std::back_inserter(cmd));
+        for (u32* parse_pointer = command_list; parse_pointer < command_list + size_in_words;)
+        {
+            const Pica::CommandHeader header = static_cast<Pica::CommandHeader>(parse_pointer[1]);
+
+            cmdlist.push_back(PicaCommand());
+            auto& cmd = cmdlist.back();
+
+            size_t size = 2 + header.extra_data_length;
+            cmd.reserve(size);
+            std::copy(parse_pointer, parse_pointer + size, std::back_inserter(cmd));
+
+            parse_pointer += size;
+        }
 
         auto obj = std::pair<u32,PicaCommandList>(address, cmdlist);
         auto it = std::find(command_lists.begin(), command_lists.end(), obj);

src/video_core/pica.h

@@ -24,6 +24,8 @@ enum class CommandId : u32
 };
 
 union CommandHeader {
+    CommandHeader(u32 h) : hex(h) {}
+
     u32 hex;
 
     BitField< 0, 16, CommandId> cmd_id;