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// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.
#pragma once
#include <algorithm>
#include <functional>
#include <vector>
#include "common/log.h"
#include "core/hle/service/gsp.h"
#include "pica.h"
class GraphicsDebugger
{
public:
// A few utility structs used to expose data
// A vector of commands represented by their raw byte sequence
struct PicaCommand : public std::vector<u32>
{
Pica::CommandHeader& GetHeader()
{
u32& val = at(1);
return *(Pica::CommandHeader*)&val;
}
};
typedef std::vector<PicaCommand> PicaCommandList;
// Base class for all objects which need to be notified about GPU events
class DebuggerObserver
{
public:
DebuggerObserver() : observed(nullptr) { }
virtual ~DebuggerObserver()
{
if (observed)
observed->UnregisterObserver(this);
}
/**
* Called when a GX command has been processed and is ready for being
* read via GraphicsDebugger::ReadGXCommandHistory.
* @param total_command_count Total number of commands in the GX history
* @note All methods in this class are called from the GSP thread
*/
virtual void GXCommandProcessed(int total_command_count)
{
const GSP_GPU::GXCommand& cmd = observed->ReadGXCommandHistory(total_command_count-1);
ERROR_LOG(GSP, "Received command: id=%x", cmd.id);
}
/**
* @param lst command list which triggered this call
* @param is_new true if the command list was called for the first time
* @todo figure out how to make sure called functions don't keep references around beyond their life time
*/
virtual void OnCommandListCalled(const PicaCommandList& lst, bool is_new)
{
ERROR_LOG(GSP, "Command list called: %d", (int)is_new);
}
protected:
GraphicsDebugger* GetDebugger()
{
return observed;
}
private:
GraphicsDebugger* observed;
bool in_destruction;
friend class GraphicsDebugger;
};
void GXCommandProcessed(u8* command_data)
{
gx_command_history.push_back(GSP_GPU::GXCommand());
GSP_GPU::GXCommand& cmd = gx_command_history[gx_command_history.size()-1];
const int cmd_length = sizeof(GSP_GPU::GXCommand);
memcpy(cmd.data, command_data, cmd_length);
ForEachObserver([this](DebuggerObserver* observer) {
observer->GXCommandProcessed(this->gx_command_history.size());
} );
}
void CommandListCalled(u32 address, u32* command_list, u32 size_in_words)
{
PicaCommandList cmdlist;
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;
size = (size + 1) / 2 * 2; // align to 8 bytes
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);
bool is_new = (it == command_lists.end());
if (is_new)
command_lists.push_back(obj);
ForEachObserver([&](DebuggerObserver* observer) {
observer->OnCommandListCalled(obj.second, is_new);
} );
}
const GSP_GPU::GXCommand& ReadGXCommandHistory(int index) const
{
// TODO: Is this thread-safe?
return gx_command_history[index];
}
const std::vector<std::pair<u32,PicaCommandList>>& GetCommandLists() const
{
return command_lists;
}
void RegisterObserver(DebuggerObserver* observer)
{
// TODO: Check for duplicates
observers.push_back(observer);
observer->observed = this;
}
void UnregisterObserver(DebuggerObserver* observer)
{
std::remove(observers.begin(), observers.end(), observer);
observer->observed = nullptr;
}
private:
void ForEachObserver(std::function<void (DebuggerObserver*)> func)
{
std::for_each(observers.begin(),observers.end(), func);
}
std::vector<DebuggerObserver*> observers;
std::vector<GSP_GPU::GXCommand> gx_command_history;
// vector of pairs of command lists and their storage address
std::vector<std::pair<u32,PicaCommandList>> command_lists;
};
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