summaryrefslogtreecommitdiffstats
path: root/src/core/core.h
blob: ab36634274cb28e5947915d17260210d4fcc0dba (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.

#pragma once

#include <cstddef>
#include <memory>
#include <string>

#include "common/common_types.h"
#include "core/hle/kernel/object.h"

namespace Core::Frontend {
class EmuWindow;
} // namespace Core::Frontend

namespace FileSys {
class VfsFilesystem;
} // namespace FileSys

namespace Kernel {
class KernelCore;
class Process;
class Scheduler;
} // namespace Kernel

namespace Loader {
class AppLoader;
enum class ResultStatus : u16;
} // namespace Loader

namespace Service::SM {
class ServiceManager;
} // namespace Service::SM

namespace Tegra {
class DebugContext;
class GPU;
} // namespace Tegra

namespace VideoCore {
class RendererBase;
} // namespace VideoCore

namespace Core {

class ARM_Interface;
class Cpu;
class ExclusiveMonitor;
class FrameLimiter;
class PerfStats;
class TelemetrySession;

struct PerfStatsResults;

class System {
public:
    System(const System&) = delete;
    System& operator=(const System&) = delete;

    System(System&&) = delete;
    System& operator=(System&&) = delete;

    ~System();

    /**
     * Gets the instance of the System singleton class.
     * @returns Reference to the instance of the System singleton class.
     */
    static System& GetInstance() {
        return s_instance;
    }

    /// Enumeration representing the return values of the System Initialize and Load process.
    enum class ResultStatus : u32 {
        Success,             ///< Succeeded
        ErrorNotInitialized, ///< Error trying to use core prior to initialization
        ErrorGetLoader,      ///< Error finding the correct application loader
        ErrorSystemMode,     ///< Error determining the system mode
        ErrorSystemFiles,    ///< Error in finding system files
        ErrorSharedFont,     ///< Error in finding shared font
        ErrorVideoCore,      ///< Error in the video core
        ErrorUnknown,        ///< Any other error
        ErrorLoader,         ///< The base for loader errors (too many to repeat)
    };

    /**
     * Run the core CPU loop
     * This function runs the core for the specified number of CPU instructions before trying to
     * update hardware. This is much faster than SingleStep (and should be equivalent), as the CPU
     * is not required to do a full dispatch with each instruction. NOTE: the number of instructions
     * requested is not guaranteed to run, as this will be interrupted preemptively if a hardware
     * update is requested (e.g. on a thread switch).
     * @param tight_loop If false, the CPU single-steps.
     * @return Result status, indicating whether or not the operation succeeded.
     */
    ResultStatus RunLoop(bool tight_loop = true);

    /**
     * Step the CPU one instruction
     * @return Result status, indicating whether or not the operation succeeded.
     */
    ResultStatus SingleStep();

    /**
     * Invalidate the CPU instruction caches
     * This function should only be used by GDB Stub to support breakpoints, memory updates and
     * step/continue commands.
     */
    void InvalidateCpuInstructionCaches();

    /// Shutdown the emulated system.
    void Shutdown();

    /**
     * Load an executable application.
     * @param emu_window Reference to the host-system window used for video output and keyboard
     *                   input.
     * @param filepath String path to the executable application to load on the host file system.
     * @returns ResultStatus code, indicating if the operation succeeded.
     */
    ResultStatus Load(Frontend::EmuWindow& emu_window, const std::string& filepath);

    /**
     * Indicates if the emulated system is powered on (all subsystems initialized and able to run an
     * application).
     * @returns True if the emulated system is powered on, otherwise false.
     */
    bool IsPoweredOn() const;

    /**
     * Returns a reference to the telemetry session for this emulation session.
     * @returns Reference to the telemetry session.
     */
    Core::TelemetrySession& TelemetrySession() const;

    /// Prepare the core emulation for a reschedule
    void PrepareReschedule();

    /// Gets and resets core performance statistics
    PerfStatsResults GetAndResetPerfStats();

    /// Gets an ARM interface to the CPU core that is currently running
    ARM_Interface& CurrentArmInterface();

    /// Gets the index of the currently running CPU core
    size_t CurrentCoreIndex();

    /// Gets the scheduler for the CPU core that is currently running
    Kernel::Scheduler& CurrentScheduler();

    /// Gets an ARM interface to the CPU core with the specified index
    ARM_Interface& ArmInterface(size_t core_index);

    /// Gets a CPU interface to the CPU core with the specified index
    Cpu& CpuCore(size_t core_index);

    /// Gets the exclusive monitor
    ExclusiveMonitor& Monitor();

    /// Gets a mutable reference to the GPU interface
    Tegra::GPU& GPU();

    /// Gets an immutable reference to the GPU interface.
    const Tegra::GPU& GPU() const;

    /// Gets a mutable reference to the renderer.
    VideoCore::RendererBase& Renderer();

    /// Gets an immutable reference to the renderer.
    const VideoCore::RendererBase& Renderer() const;

    /// Gets the scheduler for the CPU core with the specified index
    const std::shared_ptr<Kernel::Scheduler>& Scheduler(size_t core_index);

    /// Provides a reference to the current process
    Kernel::SharedPtr<Kernel::Process>& CurrentProcess();

    /// Provides a constant reference to the current process.
    const Kernel::SharedPtr<Kernel::Process>& CurrentProcess() const;

    /// Provides a reference to the kernel instance.
    Kernel::KernelCore& Kernel();

    /// Provides a constant reference to the kernel instance.
    const Kernel::KernelCore& Kernel() const;

    /// Provides a reference to the internal PerfStats instance.
    Core::PerfStats& GetPerfStats();

    /// Provides a constant reference to the internal PerfStats instance.
    const Core::PerfStats& GetPerfStats() const;

    /// Provides a reference to the frame limiter;
    Core::FrameLimiter& FrameLimiter();

    /// Provides a constant referent to the frame limiter
    const Core::FrameLimiter& FrameLimiter() const;

    /// Gets the name of the current game
    Loader::ResultStatus GetGameName(std::string& out) const;

    void SetStatus(ResultStatus new_status, const char* details);

    const std::string& GetStatusDetails() const;

    Loader::AppLoader& GetAppLoader() const;

    Service::SM::ServiceManager& ServiceManager();
    const Service::SM::ServiceManager& ServiceManager() const;

    void SetGPUDebugContext(std::shared_ptr<Tegra::DebugContext> context);

    Tegra::DebugContext* GetGPUDebugContext() const;

    void SetFilesystem(std::shared_ptr<FileSys::VfsFilesystem> vfs);

    std::shared_ptr<FileSys::VfsFilesystem> GetFilesystem() const;

private:
    System();

    /// Returns the currently running CPU core
    Cpu& CurrentCpuCore();

    /**
     * Initialize the emulated system.
     * @param emu_window Reference to the host-system window used for video output and keyboard
     *                   input.
     * @return ResultStatus code, indicating if the operation succeeded.
     */
    ResultStatus Init(Frontend::EmuWindow& emu_window);

    struct Impl;
    std::unique_ptr<Impl> impl;

    static System s_instance;
};

inline ARM_Interface& CurrentArmInterface() {
    return System::GetInstance().CurrentArmInterface();
}

inline TelemetrySession& Telemetry() {
    return System::GetInstance().TelemetrySession();
}

inline Kernel::SharedPtr<Kernel::Process>& CurrentProcess() {
    return System::GetInstance().CurrentProcess();
}

} // namespace Core