diff --git a/dep/CMakeLists.txt b/dep/CMakeLists.txt
index 9890c2409..61205bfc4 100644
--- a/dep/CMakeLists.txt
+++ b/dep/CMakeLists.txt
@@ -12,6 +12,11 @@ add_subdirectory(lzma)
add_subdirectory(libFLAC)
add_subdirectory(libchdr)
add_subdirectory(xxhash)
+add_subdirectory(rapidjson)
+
+if(ENABLE_DISCORD_PRESENCE)
+ add_subdirectory(discord-rpc)
+endif()
if(BUILD_SDL_FRONTEND)
add_subdirectory(nativefiledialog)
diff --git a/dep/discord-rpc/CMakeLists.txt b/dep/discord-rpc/CMakeLists.txt
new file mode 100644
index 000000000..ca73ad02e
--- /dev/null
+++ b/dep/discord-rpc/CMakeLists.txt
@@ -0,0 +1,33 @@
+set(SRCS
+ include/discord_register.h
+ include/discord_rpc.h
+ src/backoff.h
+ src/connection.h
+ src/discord_rpc.cpp
+ src/msg_queue.h
+ src/rpc_connection.cpp
+ src/rpc_connection.h
+ src/serialization.cpp
+ src/serialization.h
+)
+
+add_library(discord-rpc ${SRCS})
+target_include_directories(discord-rpc PUBLIC "${CMAKE_CURRENT_SOURCE_DIR}/include")
+target_link_libraries(discord-rpc rapidjson)
+
+if(WIN32)
+ target_sources(discord-rpc PRIVATE
+ src/connection_win.cpp
+ src/discord_register_win.cpp
+ )
+elseif(APPLE)
+ target_sources(discord-rpc PRIVATE
+ src/connection_unix.cpp
+ src/discord_register_osx.m
+ )
+elseif(CMAKE_SYSTEM_NAME STREQUAL Linux)
+ target_sources(discord-rpc PRIVATE
+ src/connection_unix.cpp
+ src/discord_register_linux.cpp
+ )
+endif()
diff --git a/dep/discord-rpc/LICENSE b/dep/discord-rpc/LICENSE
new file mode 100644
index 000000000..17fca3d50
--- /dev/null
+++ b/dep/discord-rpc/LICENSE
@@ -0,0 +1,19 @@
+Copyright 2017 Discord, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of
+this software and associated documentation files (the "Software"), to deal in
+the Software without restriction, including without limitation the rights to
+use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+of the Software, and to permit persons to whom the Software is furnished to do
+so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
diff --git a/dep/discord-rpc/discord-rpc.vcxproj b/dep/discord-rpc/discord-rpc.vcxproj
new file mode 100644
index 000000000..7f24057e9
--- /dev/null
+++ b/dep/discord-rpc/discord-rpc.vcxproj
@@ -0,0 +1,367 @@
+
+
+
+
+ DebugFast
+ Win32
+
+
+ DebugFast
+ x64
+
+
+ Debug
+ Win32
+
+
+ Debug
+ x64
+
+
+ ReleaseLTCG
+ Win32
+
+
+ ReleaseLTCG
+ x64
+
+
+ Release
+ Win32
+
+
+ Release
+ x64
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ {4266505B-DBAF-484B-AB31-B53B9C8235B3}
+ Win32Proj
+ discord-rpc
+ 10.0
+
+
+
+ StaticLibrary
+ true
+ v142
+ NotSet
+
+
+ StaticLibrary
+ true
+ v142
+ NotSet
+
+
+ StaticLibrary
+ true
+ v142
+ NotSet
+
+
+ StaticLibrary
+ true
+ v142
+ NotSet
+
+
+ StaticLibrary
+ false
+ v142
+ true
+ NotSet
+ false
+
+
+ StaticLibrary
+ false
+ v142
+ true
+ NotSet
+ false
+
+
+ StaticLibrary
+ false
+ v142
+ true
+ NotSet
+ false
+
+
+ StaticLibrary
+ false
+ v142
+ true
+ NotSet
+ false
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ true
+ $(SolutionDir)build\$(ProjectName)-$(Platform)-$(Configuration)\
+ $(SolutionDir)build\$(ProjectName)-$(Platform)-$(Configuration)\
+ $(ProjectName)-$(Platform)-$(Configuration)
+
+
+ $(SolutionDir)build\$(ProjectName)-$(Platform)-$(Configuration)\
+ $(ProjectName)-$(Platform)-$(Configuration)
+ true
+ $(SolutionDir)build\$(ProjectName)-$(Platform)-$(Configuration)\
+
+
+ true
+ $(SolutionDir)build\$(ProjectName)-$(Platform)-$(Configuration)\
+ $(SolutionDir)build\$(ProjectName)-$(Platform)-$(Configuration)\
+ $(ProjectName)-$(Platform)-$(Configuration)
+
+
+ $(SolutionDir)build\$(ProjectName)-$(Platform)-$(Configuration)\
+ $(ProjectName)-$(Platform)-$(Configuration)
+ true
+ $(SolutionDir)build\$(ProjectName)-$(Platform)-$(Configuration)\
+
+
+ false
+ $(SolutionDir)build\$(ProjectName)-$(Platform)-$(Configuration)\
+ $(SolutionDir)build\$(ProjectName)-$(Platform)-$(Configuration)\
+ $(ProjectName)-$(Platform)-$(Configuration)
+
+
+ false
+ $(SolutionDir)build\$(ProjectName)-$(Platform)-$(Configuration)\
+ $(SolutionDir)build\$(ProjectName)-$(Platform)-$(Configuration)\
+ $(ProjectName)-$(Platform)-$(Configuration)
+
+
+ $(SolutionDir)build\$(ProjectName)-$(Platform)-$(Configuration)\
+ $(ProjectName)-$(Platform)-$(Configuration)
+ false
+ $(SolutionDir)build\$(ProjectName)-$(Platform)-$(Configuration)\
+
+
+ $(SolutionDir)build\$(ProjectName)-$(Platform)-$(Configuration)\
+ $(ProjectName)-$(Platform)-$(Configuration)
+ false
+ $(SolutionDir)build\$(ProjectName)-$(Platform)-$(Configuration)\
+
+
+
+
+
+ Level2
+ Disabled
+ _7ZIP_ST;_CRT_NONSTDC_NO_WARNINGS;_CRT_SECURE_NO_WARNINGS;WIN32;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)
+ true
+ ProgramDatabase
+ $(SolutionDir)dep\rapidjson\include;$(ProjectDir)include;%(AdditionalIncludeDirectories)
+ false
+ stdcpp17
+ true
+ true
+
+
+ Windows
+ true
+
+
+
+
+
+
+ Level2
+ Disabled
+ _7ZIP_ST;_CRT_NONSTDC_NO_WARNINGS;_CRT_SECURE_NO_WARNINGS;WIN32;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)
+ true
+ ProgramDatabase
+ $(SolutionDir)dep\rapidjson\include;$(ProjectDir)include;%(AdditionalIncludeDirectories)
+ false
+ stdcpp17
+ true
+ true
+
+
+ Windows
+ true
+
+
+
+
+
+
+ Level2
+ Disabled
+ _7ZIP_ST;_ITERATOR_DEBUG_LEVEL=1;_CRT_NONSTDC_NO_WARNINGS;_CRT_SECURE_NO_WARNINGS;WIN32;_DEBUGFAST;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)
+ true
+ ProgramDatabase
+ $(SolutionDir)dep\rapidjson\include;$(ProjectDir)include;%(AdditionalIncludeDirectories)
+ Default
+ false
+ stdcpp17
+ false
+ true
+ OnlyExplicitInline
+ true
+
+
+ Windows
+ true
+
+
+
+
+
+
+ Level2
+ Disabled
+ _7ZIP_ST;_ITERATOR_DEBUG_LEVEL=1;_CRT_NONSTDC_NO_WARNINGS;_CRT_SECURE_NO_WARNINGS;WIN32;_DEBUGFAST;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)
+ true
+ ProgramDatabase
+ $(SolutionDir)dep\rapidjson\include;$(ProjectDir)include;%(AdditionalIncludeDirectories)
+ Default
+ false
+ stdcpp17
+ false
+ true
+ OnlyExplicitInline
+ true
+
+
+ Windows
+ true
+
+
+
+
+ Level2
+
+
+ MaxSpeed
+ true
+ _7ZIP_ST;_CRT_NONSTDC_NO_WARNINGS;_CRT_SECURE_NO_WARNINGS;WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)
+ $(SolutionDir)dep\rapidjson\include;$(ProjectDir)include;%(AdditionalIncludeDirectories)
+ false
+ stdcpp17
+ true
+ true
+
+
+ Windows
+ true
+ true
+ true
+
+
+
+
+ Level2
+
+
+ MaxSpeed
+ true
+ _7ZIP_ST;_CRT_NONSTDC_NO_WARNINGS;_CRT_SECURE_NO_WARNINGS;WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)
+ $(SolutionDir)dep\rapidjson\include;$(ProjectDir)include;%(AdditionalIncludeDirectories)
+ true
+ stdcpp17
+ true
+ true
+ true
+
+
+ Windows
+ true
+ true
+ true
+
+
+
+
+ Level2
+
+
+ MaxSpeed
+ true
+ _7ZIP_ST;_CRT_NONSTDC_NO_WARNINGS;_CRT_SECURE_NO_WARNINGS;WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)
+ $(SolutionDir)dep\rapidjson\include;$(ProjectDir)include;%(AdditionalIncludeDirectories)
+ false
+ stdcpp17
+ true
+ true
+
+
+ Windows
+ true
+ true
+ true
+
+
+
+
+ Level2
+
+
+ MaxSpeed
+ true
+ _7ZIP_ST;_CRT_NONSTDC_NO_WARNINGS;_CRT_SECURE_NO_WARNINGS;WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)
+ $(SolutionDir)dep\rapidjson\include;$(ProjectDir)include;%(AdditionalIncludeDirectories)
+ true
+ stdcpp17
+ true
+ true
+ true
+
+
+ Windows
+ true
+ true
+ true
+
+
+
+
+
+
\ No newline at end of file
diff --git a/dep/discord-rpc/discord-rpc.vcxproj.filters b/dep/discord-rpc/discord-rpc.vcxproj.filters
new file mode 100644
index 000000000..2bd46495c
--- /dev/null
+++ b/dep/discord-rpc/discord-rpc.vcxproj.filters
@@ -0,0 +1,19 @@
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
\ No newline at end of file
diff --git a/dep/discord-rpc/include/discord_register.h b/dep/discord-rpc/include/discord_register.h
new file mode 100644
index 000000000..16fb42f32
--- /dev/null
+++ b/dep/discord-rpc/include/discord_register.h
@@ -0,0 +1,26 @@
+#pragma once
+
+#if defined(DISCORD_DYNAMIC_LIB)
+#if defined(_WIN32)
+#if defined(DISCORD_BUILDING_SDK)
+#define DISCORD_EXPORT __declspec(dllexport)
+#else
+#define DISCORD_EXPORT __declspec(dllimport)
+#endif
+#else
+#define DISCORD_EXPORT __attribute__((visibility("default")))
+#endif
+#else
+#define DISCORD_EXPORT
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+DISCORD_EXPORT void Discord_Register(const char* applicationId, const char* command);
+DISCORD_EXPORT void Discord_RegisterSteamGame(const char* applicationId, const char* steamId);
+
+#ifdef __cplusplus
+}
+#endif
diff --git a/dep/discord-rpc/include/discord_rpc.h b/dep/discord-rpc/include/discord_rpc.h
new file mode 100644
index 000000000..3e1441e05
--- /dev/null
+++ b/dep/discord-rpc/include/discord_rpc.h
@@ -0,0 +1,87 @@
+#pragma once
+#include
+
+// clang-format off
+
+#if defined(DISCORD_DYNAMIC_LIB)
+# if defined(_WIN32)
+# if defined(DISCORD_BUILDING_SDK)
+# define DISCORD_EXPORT __declspec(dllexport)
+# else
+# define DISCORD_EXPORT __declspec(dllimport)
+# endif
+# else
+# define DISCORD_EXPORT __attribute__((visibility("default")))
+# endif
+#else
+# define DISCORD_EXPORT
+#endif
+
+// clang-format on
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct DiscordRichPresence {
+ const char* state; /* max 128 bytes */
+ const char* details; /* max 128 bytes */
+ int64_t startTimestamp;
+ int64_t endTimestamp;
+ const char* largeImageKey; /* max 32 bytes */
+ const char* largeImageText; /* max 128 bytes */
+ const char* smallImageKey; /* max 32 bytes */
+ const char* smallImageText; /* max 128 bytes */
+ const char* partyId; /* max 128 bytes */
+ int partySize;
+ int partyMax;
+ const char* matchSecret; /* max 128 bytes */
+ const char* joinSecret; /* max 128 bytes */
+ const char* spectateSecret; /* max 128 bytes */
+ int8_t instance;
+} DiscordRichPresence;
+
+typedef struct DiscordUser {
+ const char* userId;
+ const char* username;
+ const char* discriminator;
+ const char* avatar;
+} DiscordUser;
+
+typedef struct DiscordEventHandlers {
+ void (*ready)(const DiscordUser* request);
+ void (*disconnected)(int errorCode, const char* message);
+ void (*errored)(int errorCode, const char* message);
+ void (*joinGame)(const char* joinSecret);
+ void (*spectateGame)(const char* spectateSecret);
+ void (*joinRequest)(const DiscordUser* request);
+} DiscordEventHandlers;
+
+#define DISCORD_REPLY_NO 0
+#define DISCORD_REPLY_YES 1
+#define DISCORD_REPLY_IGNORE 2
+
+DISCORD_EXPORT void Discord_Initialize(const char* applicationId,
+ DiscordEventHandlers* handlers,
+ int autoRegister,
+ const char* optionalSteamId);
+DISCORD_EXPORT void Discord_Shutdown(void);
+
+/* checks for incoming messages, dispatches callbacks */
+DISCORD_EXPORT void Discord_RunCallbacks(void);
+
+/* If you disable the lib starting its own io thread, you'll need to call this from your own */
+#ifdef DISCORD_DISABLE_IO_THREAD
+DISCORD_EXPORT void Discord_UpdateConnection(void);
+#endif
+
+DISCORD_EXPORT void Discord_UpdatePresence(const DiscordRichPresence* presence);
+DISCORD_EXPORT void Discord_ClearPresence(void);
+
+DISCORD_EXPORT void Discord_Respond(const char* userid, /* DISCORD_REPLY_ */ int reply);
+
+DISCORD_EXPORT void Discord_UpdateHandlers(DiscordEventHandlers* handlers);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif
diff --git a/dep/discord-rpc/src/backoff.h b/dep/discord-rpc/src/backoff.h
new file mode 100644
index 000000000..a3e736fb7
--- /dev/null
+++ b/dep/discord-rpc/src/backoff.h
@@ -0,0 +1,40 @@
+#pragma once
+
+#include
+#include
+#include
+#include
+
+struct Backoff {
+ int64_t minAmount;
+ int64_t maxAmount;
+ int64_t current;
+ int fails;
+ std::mt19937_64 randGenerator;
+ std::uniform_real_distribution<> randDistribution;
+
+ double rand01() { return randDistribution(randGenerator); }
+
+ Backoff(int64_t min, int64_t max)
+ : minAmount(min)
+ , maxAmount(max)
+ , current(min)
+ , fails(0)
+ , randGenerator((uint64_t)time(0))
+ {
+ }
+
+ void reset()
+ {
+ fails = 0;
+ current = minAmount;
+ }
+
+ int64_t nextDelay()
+ {
+ ++fails;
+ int64_t delay = (int64_t)((double)current * 2.0 * rand01());
+ current = std::min(current + delay, maxAmount);
+ return current;
+ }
+};
diff --git a/dep/discord-rpc/src/connection.h b/dep/discord-rpc/src/connection.h
new file mode 100644
index 000000000..a8f99b9f1
--- /dev/null
+++ b/dep/discord-rpc/src/connection.h
@@ -0,0 +1,19 @@
+#pragma once
+
+// This is to wrap the platform specific kinds of connect/read/write.
+
+#include
+#include
+
+// not really connectiony, but need per-platform
+int GetProcessId();
+
+struct BaseConnection {
+ static BaseConnection* Create();
+ static void Destroy(BaseConnection*&);
+ bool isOpen{false};
+ bool Open();
+ bool Close();
+ bool Write(const void* data, size_t length);
+ bool Read(void* data, size_t length);
+};
diff --git a/dep/discord-rpc/src/connection_unix.cpp b/dep/discord-rpc/src/connection_unix.cpp
new file mode 100644
index 000000000..85dace3cc
--- /dev/null
+++ b/dep/discord-rpc/src/connection_unix.cpp
@@ -0,0 +1,125 @@
+#include "connection.h"
+
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+#include
+
+int GetProcessId()
+{
+ return ::getpid();
+}
+
+struct BaseConnectionUnix : public BaseConnection {
+ int sock{-1};
+};
+
+static BaseConnectionUnix Connection;
+static sockaddr_un PipeAddr{};
+#ifdef MSG_NOSIGNAL
+static int MsgFlags = MSG_NOSIGNAL;
+#else
+static int MsgFlags = 0;
+#endif
+
+static const char* GetTempPath()
+{
+ const char* temp = getenv("XDG_RUNTIME_DIR");
+ temp = temp ? temp : getenv("TMPDIR");
+ temp = temp ? temp : getenv("TMP");
+ temp = temp ? temp : getenv("TEMP");
+ temp = temp ? temp : "/tmp";
+ return temp;
+}
+
+/*static*/ BaseConnection* BaseConnection::Create()
+{
+ PipeAddr.sun_family = AF_UNIX;
+ return &Connection;
+}
+
+/*static*/ void BaseConnection::Destroy(BaseConnection*& c)
+{
+ auto self = reinterpret_cast(c);
+ self->Close();
+ c = nullptr;
+}
+
+bool BaseConnection::Open()
+{
+ const char* tempPath = GetTempPath();
+ auto self = reinterpret_cast(this);
+ self->sock = socket(AF_UNIX, SOCK_STREAM, 0);
+ if (self->sock == -1) {
+ return false;
+ }
+ fcntl(self->sock, F_SETFL, O_NONBLOCK);
+#ifdef SO_NOSIGPIPE
+ int optval = 1;
+ setsockopt(self->sock, SOL_SOCKET, SO_NOSIGPIPE, &optval, sizeof(optval));
+#endif
+
+ for (int pipeNum = 0; pipeNum < 10; ++pipeNum) {
+ snprintf(
+ PipeAddr.sun_path, sizeof(PipeAddr.sun_path), "%s/discord-ipc-%d", tempPath, pipeNum);
+ int err = connect(self->sock, (const sockaddr*)&PipeAddr, sizeof(PipeAddr));
+ if (err == 0) {
+ self->isOpen = true;
+ return true;
+ }
+ }
+ self->Close();
+ return false;
+}
+
+bool BaseConnection::Close()
+{
+ auto self = reinterpret_cast(this);
+ if (self->sock == -1) {
+ return false;
+ }
+ close(self->sock);
+ self->sock = -1;
+ self->isOpen = false;
+ return true;
+}
+
+bool BaseConnection::Write(const void* data, size_t length)
+{
+ auto self = reinterpret_cast(this);
+
+ if (self->sock == -1) {
+ return false;
+ }
+
+ ssize_t sentBytes = send(self->sock, data, length, MsgFlags);
+ if (sentBytes < 0) {
+ Close();
+ }
+ return sentBytes == (ssize_t)length;
+}
+
+bool BaseConnection::Read(void* data, size_t length)
+{
+ auto self = reinterpret_cast(this);
+
+ if (self->sock == -1) {
+ return false;
+ }
+
+ int res = (int)recv(self->sock, data, length, MsgFlags);
+ if (res < 0) {
+ if (errno == EAGAIN) {
+ return false;
+ }
+ Close();
+ }
+ else if (res == 0) {
+ Close();
+ }
+ return res == (int)length;
+}
diff --git a/dep/discord-rpc/src/connection_win.cpp b/dep/discord-rpc/src/connection_win.cpp
new file mode 100644
index 000000000..2dd2750c0
--- /dev/null
+++ b/dep/discord-rpc/src/connection_win.cpp
@@ -0,0 +1,128 @@
+#include "connection.h"
+
+#define WIN32_LEAN_AND_MEAN
+#define NOMCX
+#define NOSERVICE
+#define NOIME
+#include
+#include
+
+int GetProcessId()
+{
+ return (int)::GetCurrentProcessId();
+}
+
+struct BaseConnectionWin : public BaseConnection {
+ HANDLE pipe{INVALID_HANDLE_VALUE};
+};
+
+static BaseConnectionWin Connection;
+
+/*static*/ BaseConnection* BaseConnection::Create()
+{
+ return &Connection;
+}
+
+/*static*/ void BaseConnection::Destroy(BaseConnection*& c)
+{
+ auto self = reinterpret_cast(c);
+ self->Close();
+ c = nullptr;
+}
+
+bool BaseConnection::Open()
+{
+ wchar_t pipeName[]{L"\\\\?\\pipe\\discord-ipc-0"};
+ const size_t pipeDigit = sizeof(pipeName) / sizeof(wchar_t) - 2;
+ pipeName[pipeDigit] = L'0';
+ auto self = reinterpret_cast(this);
+ for (;;) {
+ self->pipe = ::CreateFileW(
+ pipeName, GENERIC_READ | GENERIC_WRITE, 0, nullptr, OPEN_EXISTING, 0, nullptr);
+ if (self->pipe != INVALID_HANDLE_VALUE) {
+ self->isOpen = true;
+ return true;
+ }
+
+ auto lastError = GetLastError();
+ if (lastError == ERROR_FILE_NOT_FOUND) {
+ if (pipeName[pipeDigit] < L'9') {
+ pipeName[pipeDigit]++;
+ continue;
+ }
+ }
+ else if (lastError == ERROR_PIPE_BUSY) {
+ if (!WaitNamedPipeW(pipeName, 10000)) {
+ return false;
+ }
+ continue;
+ }
+ return false;
+ }
+}
+
+bool BaseConnection::Close()
+{
+ auto self = reinterpret_cast(this);
+ ::CloseHandle(self->pipe);
+ self->pipe = INVALID_HANDLE_VALUE;
+ self->isOpen = false;
+ return true;
+}
+
+bool BaseConnection::Write(const void* data, size_t length)
+{
+ if (length == 0) {
+ return true;
+ }
+ auto self = reinterpret_cast(this);
+ assert(self);
+ if (!self) {
+ return false;
+ }
+ if (self->pipe == INVALID_HANDLE_VALUE) {
+ return false;
+ }
+ assert(data);
+ if (!data) {
+ return false;
+ }
+ const DWORD bytesLength = (DWORD)length;
+ DWORD bytesWritten = 0;
+ return ::WriteFile(self->pipe, data, bytesLength, &bytesWritten, nullptr) == TRUE &&
+ bytesWritten == bytesLength;
+}
+
+bool BaseConnection::Read(void* data, size_t length)
+{
+ assert(data);
+ if (!data) {
+ return false;
+ }
+ auto self = reinterpret_cast(this);
+ assert(self);
+ if (!self) {
+ return false;
+ }
+ if (self->pipe == INVALID_HANDLE_VALUE) {
+ return false;
+ }
+ DWORD bytesAvailable = 0;
+ if (::PeekNamedPipe(self->pipe, nullptr, 0, nullptr, &bytesAvailable, nullptr)) {
+ if (bytesAvailable >= length) {
+ DWORD bytesToRead = (DWORD)length;
+ DWORD bytesRead = 0;
+ if (::ReadFile(self->pipe, data, bytesToRead, &bytesRead, nullptr) == TRUE) {
+ assert(bytesToRead == bytesRead);
+ return true;
+ }
+ else {
+ Close();
+ }
+ }
+ }
+ else {
+ Close();
+ }
+ return false;
+}
diff --git a/dep/discord-rpc/src/discord_register_linux.cpp b/dep/discord-rpc/src/discord_register_linux.cpp
new file mode 100644
index 000000000..dd92eea0d
--- /dev/null
+++ b/dep/discord-rpc/src/discord_register_linux.cpp
@@ -0,0 +1,102 @@
+#include "discord_rpc.h"
+#include "discord_register.h"
+#include
+
+#include
+#include
+#include
+#include
+#include
+#include
+
+static bool Mkdir(const char* path)
+{
+ int result = mkdir(path, 0755);
+ if (result == 0) {
+ return true;
+ }
+ if (errno == EEXIST) {
+ return true;
+ }
+ return false;
+}
+
+// we want to register games so we can run them from Discord client as discord-://
+extern "C" DISCORD_EXPORT void Discord_Register(const char* applicationId, const char* command)
+{
+ // Add a desktop file and update some mime handlers so that xdg-open does the right thing.
+
+ const char* home = getenv("HOME");
+ if (!home) {
+ return;
+ }
+
+ char exePath[1024];
+ if (!command || !command[0]) {
+ ssize_t size = readlink("/proc/self/exe", exePath, sizeof(exePath));
+ if (size <= 0 || size >= (ssize_t)sizeof(exePath)) {
+ return;
+ }
+ exePath[size] = '\0';
+ command = exePath;
+ }
+
+ const char* desktopFileFormat = "[Desktop Entry]\n"
+ "Name=Game %s\n"
+ "Exec=%s %%u\n" // note: it really wants that %u in there
+ "Type=Application\n"
+ "NoDisplay=true\n"
+ "Categories=Discord;Games;\n"
+ "MimeType=x-scheme-handler/discord-%s;\n";
+ char desktopFile[2048];
+ int fileLen = snprintf(
+ desktopFile, sizeof(desktopFile), desktopFileFormat, applicationId, command, applicationId);
+ if (fileLen <= 0) {
+ return;
+ }
+
+ char desktopFilename[256];
+ snprintf(desktopFilename, sizeof(desktopFilename), "/discord-%s.desktop", applicationId);
+
+ char desktopFilePath[1024];
+ snprintf(desktopFilePath, sizeof(desktopFilePath), "%s/.local", home);
+ if (!Mkdir(desktopFilePath)) {
+ return;
+ }
+ strcat(desktopFilePath, "/share");
+ if (!Mkdir(desktopFilePath)) {
+ return;
+ }
+ strcat(desktopFilePath, "/applications");
+ if (!Mkdir(desktopFilePath)) {
+ return;
+ }
+ strcat(desktopFilePath, desktopFilename);
+
+ FILE* fp = fopen(desktopFilePath, "w");
+ if (fp) {
+ fwrite(desktopFile, 1, fileLen, fp);
+ fclose(fp);
+ }
+ else {
+ return;
+ }
+
+ char xdgMimeCommand[1024];
+ snprintf(xdgMimeCommand,
+ sizeof(xdgMimeCommand),
+ "xdg-mime default discord-%s.desktop x-scheme-handler/discord-%s",
+ applicationId,
+ applicationId);
+ if (system(xdgMimeCommand) < 0) {
+ fprintf(stderr, "Failed to register mime handler\n");
+ }
+}
+
+extern "C" DISCORD_EXPORT void Discord_RegisterSteamGame(const char* applicationId,
+ const char* steamId)
+{
+ char command[256];
+ sprintf(command, "xdg-open steam://rungameid/%s", steamId);
+ Discord_Register(applicationId, command);
+}
diff --git a/dep/discord-rpc/src/discord_register_osx.m b/dep/discord-rpc/src/discord_register_osx.m
new file mode 100644
index 000000000..d71010286
--- /dev/null
+++ b/dep/discord-rpc/src/discord_register_osx.m
@@ -0,0 +1,80 @@
+#include
+#include
+
+#import
+
+#include "discord_register.h"
+
+static void RegisterCommand(const char* applicationId, const char* command)
+{
+ // There does not appear to be a way to register arbitrary commands on OSX, so instead we'll save the command
+ // to a file in the Discord config path, and when it is needed, Discord can try to load the file there, open
+ // the command therein (will pass to js's window.open, so requires a url-like thing)
+
+ // Note: will not work for sandboxed apps
+ NSString *home = NSHomeDirectory();
+ if (!home) {
+ return;
+ }
+
+ NSString *path = [[[[[[home stringByAppendingPathComponent:@"Library"]
+ stringByAppendingPathComponent:@"Application Support"]
+ stringByAppendingPathComponent:@"discord"]
+ stringByAppendingPathComponent:@"games"]
+ stringByAppendingPathComponent:[NSString stringWithUTF8String:applicationId]]
+ stringByAppendingPathExtension:@"json"];
+ [[NSFileManager defaultManager] createDirectoryAtPath:[path stringByDeletingLastPathComponent] withIntermediateDirectories:YES attributes:nil error:nil];
+
+ NSString *jsonBuffer = [NSString stringWithFormat:@"{\"command\": \"%s\"}", command];
+ [jsonBuffer writeToFile:path atomically:NO encoding:NSUTF8StringEncoding error:nil];
+}
+
+static void RegisterURL(const char* applicationId)
+{
+ char url[256];
+ snprintf(url, sizeof(url), "discord-%s", applicationId);
+ CFStringRef cfURL = CFStringCreateWithCString(NULL, url, kCFStringEncodingUTF8);
+
+ NSString* myBundleId = [[NSBundle mainBundle] bundleIdentifier];
+ if (!myBundleId) {
+ fprintf(stderr, "No bundle id found\n");
+ return;
+ }
+
+ NSURL* myURL = [[NSBundle mainBundle] bundleURL];
+ if (!myURL) {
+ fprintf(stderr, "No bundle url found\n");
+ return;
+ }
+
+ OSStatus status = LSSetDefaultHandlerForURLScheme(cfURL, (__bridge CFStringRef)myBundleId);
+ if (status != noErr) {
+ fprintf(stderr, "Error in LSSetDefaultHandlerForURLScheme: %d\n", (int)status);
+ return;
+ }
+
+ status = LSRegisterURL((__bridge CFURLRef)myURL, true);
+ if (status != noErr) {
+ fprintf(stderr, "Error in LSRegisterURL: %d\n", (int)status);
+ }
+}
+
+void Discord_Register(const char* applicationId, const char* command)
+{
+ if (command) {
+ RegisterCommand(applicationId, command);
+ }
+ else {
+ // raii lite
+ @autoreleasepool {
+ RegisterURL(applicationId);
+ }
+ }
+}
+
+void Discord_RegisterSteamGame(const char* applicationId, const char* steamId)
+{
+ char command[256];
+ snprintf(command, 256, "steam://rungameid/%s", steamId);
+ Discord_Register(applicationId, command);
+}
diff --git a/dep/discord-rpc/src/discord_register_win.cpp b/dep/discord-rpc/src/discord_register_win.cpp
new file mode 100644
index 000000000..0b1c4a13d
--- /dev/null
+++ b/dep/discord-rpc/src/discord_register_win.cpp
@@ -0,0 +1,186 @@
+#include "discord_rpc.h"
+#include "discord_register.h"
+
+#define WIN32_LEAN_AND_MEAN
+#define NOMCX
+#define NOSERVICE
+#define NOIME
+#include
+#include
+#include
+
+/**
+ * Updated fixes for MinGW and WinXP
+ * This block is written the way it does not involve changing the rest of the code
+ * Checked to be compiling
+ * 1) strsafe.h belongs to Windows SDK and cannot be added to MinGW
+ * #include guarded, functions redirected to substitutes
+ * 2) RegSetKeyValueW and LSTATUS are not declared in
+ * The entire function is rewritten
+ */
+#ifdef __MINGW32__
+#include
+/// strsafe.h fixes
+static HRESULT StringCbPrintfW(LPWSTR pszDest, size_t cbDest, LPCWSTR pszFormat, ...)
+{
+ HRESULT ret;
+ va_list va;
+ va_start(va, pszFormat);
+ cbDest /= 2; // Size is divided by 2 to convert from bytes to wide characters - causes segfault
+ // othervise
+ ret = vsnwprintf(pszDest, cbDest, pszFormat, va);
+ pszDest[cbDest - 1] = 0; // Terminate the string in case a buffer overflow; -1 will be returned
+ va_end(va);
+ return ret;
+}
+#else
+#include
+#include
+#endif // __MINGW32__
+
+/// winreg.h fixes
+#ifndef LSTATUS
+#define LSTATUS LONG
+#endif
+#ifdef RegSetKeyValueW
+#undefine RegSetKeyValueW
+#endif
+#define RegSetKeyValueW regset
+static LSTATUS regset(HKEY hkey,
+ LPCWSTR subkey,
+ LPCWSTR name,
+ DWORD type,
+ const void* data,
+ DWORD len)
+{
+ HKEY htkey = hkey, hsubkey = nullptr;
+ LSTATUS ret;
+ if (subkey && subkey[0]) {
+ if ((ret = RegCreateKeyExW(hkey, subkey, 0, 0, 0, KEY_ALL_ACCESS, 0, &hsubkey, 0)) !=
+ ERROR_SUCCESS)
+ return ret;
+ htkey = hsubkey;
+ }
+ ret = RegSetValueExW(htkey, name, 0, type, (const BYTE*)data, len);
+ if (hsubkey && hsubkey != hkey)
+ RegCloseKey(hsubkey);
+ return ret;
+}
+
+static void Discord_RegisterW(const wchar_t* applicationId, const wchar_t* command)
+{
+ // https://msdn.microsoft.com/en-us/library/aa767914(v=vs.85).aspx
+ // we want to register games so we can run them as discord-://
+ // Update the HKEY_CURRENT_USER, because it doesn't seem to require special permissions.
+
+ wchar_t exeFilePath[MAX_PATH];
+ DWORD exeLen = GetModuleFileNameW(nullptr, exeFilePath, MAX_PATH);
+ wchar_t openCommand[1024];
+
+ if (command && command[0]) {
+ StringCbPrintfW(openCommand, sizeof(openCommand), L"%s", command);
+ }
+ else {
+ // StringCbCopyW(openCommand, sizeof(openCommand), exeFilePath);
+ StringCbPrintfW(openCommand, sizeof(openCommand), L"%s", exeFilePath);
+ }
+
+ wchar_t protocolName[64];
+ StringCbPrintfW(protocolName, sizeof(protocolName), L"discord-%s", applicationId);
+ wchar_t protocolDescription[128];
+ StringCbPrintfW(
+ protocolDescription, sizeof(protocolDescription), L"URL:Run game %s protocol", applicationId);
+ wchar_t urlProtocol = 0;
+
+ wchar_t keyName[256];
+ StringCbPrintfW(keyName, sizeof(keyName), L"Software\\Classes\\%s", protocolName);
+ HKEY key;
+ auto status =
+ RegCreateKeyExW(HKEY_CURRENT_USER, keyName, 0, nullptr, 0, KEY_WRITE, nullptr, &key, nullptr);
+ if (status != ERROR_SUCCESS) {
+ fprintf(stderr, "Error creating key\n");
+ return;
+ }
+ DWORD len;
+ LSTATUS result;
+ len = (DWORD)lstrlenW(protocolDescription) + 1;
+ result =
+ RegSetKeyValueW(key, nullptr, nullptr, REG_SZ, protocolDescription, len * sizeof(wchar_t));
+ if (FAILED(result)) {
+ fprintf(stderr, "Error writing description\n");
+ }
+
+ len = (DWORD)lstrlenW(protocolDescription) + 1;
+ result = RegSetKeyValueW(key, nullptr, L"URL Protocol", REG_SZ, &urlProtocol, sizeof(wchar_t));
+ if (FAILED(result)) {
+ fprintf(stderr, "Error writing description\n");
+ }
+
+ result = RegSetKeyValueW(
+ key, L"DefaultIcon", nullptr, REG_SZ, exeFilePath, (exeLen + 1) * sizeof(wchar_t));
+ if (FAILED(result)) {
+ fprintf(stderr, "Error writing icon\n");
+ }
+
+ len = (DWORD)lstrlenW(openCommand) + 1;
+ result = RegSetKeyValueW(
+ key, L"shell\\open\\command", nullptr, REG_SZ, openCommand, len * sizeof(wchar_t));
+ if (FAILED(result)) {
+ fprintf(stderr, "Error writing command\n");
+ }
+ RegCloseKey(key);
+}
+
+extern "C" DISCORD_EXPORT void Discord_Register(const char* applicationId, const char* command)
+{
+ wchar_t appId[32];
+ MultiByteToWideChar(CP_UTF8, 0, applicationId, -1, appId, 32);
+
+ wchar_t openCommand[1024];
+ const wchar_t* wcommand = nullptr;
+ if (command && command[0]) {
+ const auto commandBufferLen = sizeof(openCommand) / sizeof(*openCommand);
+ MultiByteToWideChar(CP_UTF8, 0, command, -1, openCommand, commandBufferLen);
+ wcommand = openCommand;
+ }
+
+ Discord_RegisterW(appId, wcommand);
+}
+
+extern "C" DISCORD_EXPORT void Discord_RegisterSteamGame(const char* applicationId,
+ const char* steamId)
+{
+ wchar_t appId[32];
+ MultiByteToWideChar(CP_UTF8, 0, applicationId, -1, appId, 32);
+
+ wchar_t wSteamId[32];
+ MultiByteToWideChar(CP_UTF8, 0, steamId, -1, wSteamId, 32);
+
+ HKEY key;
+ auto status = RegOpenKeyExW(HKEY_CURRENT_USER, L"Software\\Valve\\Steam", 0, KEY_READ, &key);
+ if (status != ERROR_SUCCESS) {
+ fprintf(stderr, "Error opening Steam key\n");
+ return;
+ }
+
+ wchar_t steamPath[MAX_PATH];
+ DWORD pathBytes = sizeof(steamPath);
+ status = RegQueryValueExW(key, L"SteamExe", nullptr, nullptr, (BYTE*)steamPath, &pathBytes);
+ RegCloseKey(key);
+ if (status != ERROR_SUCCESS || pathBytes < 1) {
+ fprintf(stderr, "Error reading SteamExe key\n");
+ return;
+ }
+
+ DWORD pathChars = pathBytes / sizeof(wchar_t);
+ for (DWORD i = 0; i < pathChars; ++i) {
+ if (steamPath[i] == L'/') {
+ steamPath[i] = L'\\';
+ }
+ }
+
+ wchar_t command[1024];
+ StringCbPrintfW(command, sizeof(command), L"\"%s\" steam://rungameid/%s", steamPath, wSteamId);
+
+ Discord_RegisterW(appId, command);
+}
diff --git a/dep/discord-rpc/src/discord_rpc.cpp b/dep/discord-rpc/src/discord_rpc.cpp
new file mode 100644
index 000000000..03924538c
--- /dev/null
+++ b/dep/discord-rpc/src/discord_rpc.cpp
@@ -0,0 +1,504 @@
+#include "discord_rpc.h"
+
+#include "backoff.h"
+#include "discord_register.h"
+#include "msg_queue.h"
+#include "rpc_connection.h"
+#include "serialization.h"
+
+#include
+#include
+#include
+
+#ifndef DISCORD_DISABLE_IO_THREAD
+#include
+#include
+#endif
+
+constexpr size_t MaxMessageSize{16 * 1024};
+constexpr size_t MessageQueueSize{8};
+constexpr size_t JoinQueueSize{8};
+
+struct QueuedMessage {
+ size_t length;
+ char buffer[MaxMessageSize];
+
+ void Copy(const QueuedMessage& other)
+ {
+ length = other.length;
+ if (length) {
+ memcpy(buffer, other.buffer, length);
+ }
+ }
+};
+
+struct User {
+ // snowflake (64bit int), turned into a ascii decimal string, at most 20 chars +1 null
+ // terminator = 21
+ char userId[32];
+ // 32 unicode glyphs is max name size => 4 bytes per glyph in the worst case, +1 for null
+ // terminator = 129
+ char username[344];
+ // 4 decimal digits + 1 null terminator = 5
+ char discriminator[8];
+ // optional 'a_' + md5 hex digest (32 bytes) + null terminator = 35
+ char avatar[128];
+ // Rounded way up because I'm paranoid about games breaking from future changes in these sizes
+};
+
+static RpcConnection* Connection{nullptr};
+static DiscordEventHandlers QueuedHandlers{};
+static DiscordEventHandlers Handlers{};
+static std::atomic_bool WasJustConnected{false};
+static std::atomic_bool WasJustDisconnected{false};
+static std::atomic_bool GotErrorMessage{false};
+static std::atomic_bool WasJoinGame{false};
+static std::atomic_bool WasSpectateGame{false};
+static std::atomic_bool UpdatePresence{false};
+static char JoinGameSecret[256];
+static char SpectateGameSecret[256];
+static int LastErrorCode{0};
+static char LastErrorMessage[256];
+static int LastDisconnectErrorCode{0};
+static char LastDisconnectErrorMessage[256];
+static std::mutex PresenceMutex;
+static std::mutex HandlerMutex;
+static QueuedMessage QueuedPresence{};
+static MsgQueue SendQueue;
+static MsgQueue JoinAskQueue;
+static User connectedUser;
+
+// We want to auto connect, and retry on failure, but not as fast as possible. This does expoential
+// backoff from 0.5 seconds to 1 minute
+static Backoff ReconnectTimeMs(500, 60 * 1000);
+static auto NextConnect = std::chrono::system_clock::now();
+static int Pid{0};
+static int Nonce{1};
+
+#ifndef DISCORD_DISABLE_IO_THREAD
+static void Discord_UpdateConnection(void);
+class IoThreadHolder {
+private:
+ std::atomic_bool keepRunning{true};
+ std::mutex waitForIOMutex;
+ std::condition_variable waitForIOActivity;
+ std::thread ioThread;
+
+public:
+ void Start()
+ {
+ keepRunning.store(true);
+ ioThread = std::thread([&]() {
+ const std::chrono::duration maxWait{500LL};
+ Discord_UpdateConnection();
+ while (keepRunning.load()) {
+ std::unique_lock lock(waitForIOMutex);
+ waitForIOActivity.wait_for(lock, maxWait);
+ Discord_UpdateConnection();
+ }
+ });
+ }
+
+ void Notify() { waitForIOActivity.notify_all(); }
+
+ void Stop()
+ {
+ keepRunning.exchange(false);
+ Notify();
+ if (ioThread.joinable()) {
+ ioThread.join();
+ }
+ }
+
+ ~IoThreadHolder() { Stop(); }
+};
+#else
+class IoThreadHolder {
+public:
+ void Start() {}
+ void Stop() {}
+ void Notify() {}
+};
+#endif // DISCORD_DISABLE_IO_THREAD
+static IoThreadHolder* IoThread{nullptr};
+
+static void UpdateReconnectTime()
+{
+ NextConnect = std::chrono::system_clock::now() +
+ std::chrono::duration{ReconnectTimeMs.nextDelay()};
+}
+
+#ifdef DISCORD_DISABLE_IO_THREAD
+extern "C" DISCORD_EXPORT void Discord_UpdateConnection(void)
+#else
+static void Discord_UpdateConnection(void)
+#endif
+{
+ if (!Connection) {
+ return;
+ }
+
+ if (!Connection->IsOpen()) {
+ if (std::chrono::system_clock::now() >= NextConnect) {
+ UpdateReconnectTime();
+ Connection->Open();
+ }
+ }
+ else {
+ // reads
+
+ for (;;) {
+ JsonDocument message;
+
+ if (!Connection->Read(message)) {
+ break;
+ }
+
+ const char* evtName = GetStrMember(&message, "evt");
+ const char* nonce = GetStrMember(&message, "nonce");
+
+ if (nonce) {
+ // in responses only -- should use to match up response when needed.
+
+ if (evtName && strcmp(evtName, "ERROR") == 0) {
+ auto data = GetObjMember(&message, "data");
+ LastErrorCode = GetIntMember(data, "code");
+ StringCopy(LastErrorMessage, GetStrMember(data, "message", ""));
+ GotErrorMessage.store(true);
+ }
+ }
+ else {
+ // should have evt == name of event, optional data
+ if (evtName == nullptr) {
+ continue;
+ }
+
+ auto data = GetObjMember(&message, "data");
+
+ if (strcmp(evtName, "ACTIVITY_JOIN") == 0) {
+ auto secret = GetStrMember(data, "secret");
+ if (secret) {
+ StringCopy(JoinGameSecret, secret);
+ WasJoinGame.store(true);
+ }
+ }
+ else if (strcmp(evtName, "ACTIVITY_SPECTATE") == 0) {
+ auto secret = GetStrMember(data, "secret");
+ if (secret) {
+ StringCopy(SpectateGameSecret, secret);
+ WasSpectateGame.store(true);
+ }
+ }
+ else if (strcmp(evtName, "ACTIVITY_JOIN_REQUEST") == 0) {
+ auto user = GetObjMember(data, "user");
+ auto userId = GetStrMember(user, "id");
+ auto username = GetStrMember(user, "username");
+ auto avatar = GetStrMember(user, "avatar");
+ auto joinReq = JoinAskQueue.GetNextAddMessage();
+ if (userId && username && joinReq) {
+ StringCopy(joinReq->userId, userId);
+ StringCopy(joinReq->username, username);
+ auto discriminator = GetStrMember(user, "discriminator");
+ if (discriminator) {
+ StringCopy(joinReq->discriminator, discriminator);
+ }
+ if (avatar) {
+ StringCopy(joinReq->avatar, avatar);
+ }
+ else {
+ joinReq->avatar[0] = 0;
+ }
+ JoinAskQueue.CommitAdd();
+ }
+ }
+ }
+ }
+
+ // writes
+ if (UpdatePresence.exchange(false) && QueuedPresence.length) {
+ QueuedMessage local;
+ {
+ std::lock_guard guard(PresenceMutex);
+ local.Copy(QueuedPresence);
+ }
+ if (!Connection->Write(local.buffer, local.length)) {
+ // if we fail to send, requeue
+ std::lock_guard guard(PresenceMutex);
+ QueuedPresence.Copy(local);
+ UpdatePresence.exchange(true);
+ }
+ }
+
+ while (SendQueue.HavePendingSends()) {
+ auto qmessage = SendQueue.GetNextSendMessage();
+ Connection->Write(qmessage->buffer, qmessage->length);
+ SendQueue.CommitSend();
+ }
+ }
+}
+
+static void SignalIOActivity()
+{
+ if (IoThread != nullptr) {
+ IoThread->Notify();
+ }
+}
+
+static bool RegisterForEvent(const char* evtName)
+{
+ auto qmessage = SendQueue.GetNextAddMessage();
+ if (qmessage) {
+ qmessage->length =
+ JsonWriteSubscribeCommand(qmessage->buffer, sizeof(qmessage->buffer), Nonce++, evtName);
+ SendQueue.CommitAdd();
+ SignalIOActivity();
+ return true;
+ }
+ return false;
+}
+
+static bool DeregisterForEvent(const char* evtName)
+{
+ auto qmessage = SendQueue.GetNextAddMessage();
+ if (qmessage) {
+ qmessage->length =
+ JsonWriteUnsubscribeCommand(qmessage->buffer, sizeof(qmessage->buffer), Nonce++, evtName);
+ SendQueue.CommitAdd();
+ SignalIOActivity();
+ return true;
+ }
+ return false;
+}
+
+extern "C" DISCORD_EXPORT void Discord_Initialize(const char* applicationId,
+ DiscordEventHandlers* handlers,
+ int autoRegister,
+ const char* optionalSteamId)
+{
+ IoThread = new (std::nothrow) IoThreadHolder();
+ if (IoThread == nullptr) {
+ return;
+ }
+
+ if (autoRegister) {
+ if (optionalSteamId && optionalSteamId[0]) {
+ Discord_RegisterSteamGame(applicationId, optionalSteamId);
+ }
+ else {
+ Discord_Register(applicationId, nullptr);
+ }
+ }
+
+ Pid = GetProcessId();
+
+ {
+ std::lock_guard guard(HandlerMutex);
+
+ if (handlers) {
+ QueuedHandlers = *handlers;
+ }
+ else {
+ QueuedHandlers = {};
+ }
+
+ Handlers = {};
+ }
+
+ if (Connection) {
+ return;
+ }
+
+ Connection = RpcConnection::Create(applicationId);
+ Connection->onConnect = [](JsonDocument& readyMessage) {
+ Discord_UpdateHandlers(&QueuedHandlers);
+ if (QueuedPresence.length > 0) {
+ UpdatePresence.exchange(true);
+ SignalIOActivity();
+ }
+ auto data = GetObjMember(&readyMessage, "data");
+ auto user = GetObjMember(data, "user");
+ auto userId = GetStrMember(user, "id");
+ auto username = GetStrMember(user, "username");
+ auto avatar = GetStrMember(user, "avatar");
+ if (userId && username) {
+ StringCopy(connectedUser.userId, userId);
+ StringCopy(connectedUser.username, username);
+ auto discriminator = GetStrMember(user, "discriminator");
+ if (discriminator) {
+ StringCopy(connectedUser.discriminator, discriminator);
+ }
+ if (avatar) {
+ StringCopy(connectedUser.avatar, avatar);
+ }
+ else {
+ connectedUser.avatar[0] = 0;
+ }
+ }
+ WasJustConnected.exchange(true);
+ ReconnectTimeMs.reset();
+ };
+ Connection->onDisconnect = [](int err, const char* message) {
+ LastDisconnectErrorCode = err;
+ StringCopy(LastDisconnectErrorMessage, message);
+ WasJustDisconnected.exchange(true);
+ UpdateReconnectTime();
+ };
+
+ IoThread->Start();
+}
+
+extern "C" DISCORD_EXPORT void Discord_Shutdown(void)
+{
+ if (!Connection) {
+ return;
+ }
+ Connection->onConnect = nullptr;
+ Connection->onDisconnect = nullptr;
+ Handlers = {};
+ QueuedPresence.length = 0;
+ UpdatePresence.exchange(false);
+ if (IoThread != nullptr) {
+ IoThread->Stop();
+ delete IoThread;
+ IoThread = nullptr;
+ }
+
+ RpcConnection::Destroy(Connection);
+}
+
+extern "C" DISCORD_EXPORT void Discord_UpdatePresence(const DiscordRichPresence* presence)
+{
+ {
+ std::lock_guard guard(PresenceMutex);
+ QueuedPresence.length = JsonWriteRichPresenceObj(
+ QueuedPresence.buffer, sizeof(QueuedPresence.buffer), Nonce++, Pid, presence);
+ UpdatePresence.exchange(true);
+ }
+ SignalIOActivity();
+}
+
+extern "C" DISCORD_EXPORT void Discord_ClearPresence(void)
+{
+ Discord_UpdatePresence(nullptr);
+}
+
+extern "C" DISCORD_EXPORT void Discord_Respond(const char* userId, /* DISCORD_REPLY_ */ int reply)
+{
+ // if we are not connected, let's not batch up stale messages for later
+ if (!Connection || !Connection->IsOpen()) {
+ return;
+ }
+ auto qmessage = SendQueue.GetNextAddMessage();
+ if (qmessage) {
+ qmessage->length =
+ JsonWriteJoinReply(qmessage->buffer, sizeof(qmessage->buffer), userId, reply, Nonce++);
+ SendQueue.CommitAdd();
+ SignalIOActivity();
+ }
+}
+
+extern "C" DISCORD_EXPORT void Discord_RunCallbacks(void)
+{
+ // Note on some weirdness: internally we might connect, get other signals, disconnect any number
+ // of times inbetween calls here. Externally, we want the sequence to seem sane, so any other
+ // signals are book-ended by calls to ready and disconnect.
+
+ if (!Connection) {
+ return;
+ }
+
+ bool wasDisconnected = WasJustDisconnected.exchange(false);
+ bool isConnected = Connection->IsOpen();
+
+ if (isConnected) {
+ // if we are connected, disconnect cb first
+ std::lock_guard guard(HandlerMutex);
+ if (wasDisconnected && Handlers.disconnected) {
+ Handlers.disconnected(LastDisconnectErrorCode, LastDisconnectErrorMessage);
+ }
+ }
+
+ if (WasJustConnected.exchange(false)) {
+ std::lock_guard guard(HandlerMutex);
+ if (Handlers.ready) {
+ DiscordUser du{connectedUser.userId,
+ connectedUser.username,
+ connectedUser.discriminator,
+ connectedUser.avatar};
+ Handlers.ready(&du);
+ }
+ }
+
+ if (GotErrorMessage.exchange(false)) {
+ std::lock_guard guard(HandlerMutex);
+ if (Handlers.errored) {
+ Handlers.errored(LastErrorCode, LastErrorMessage);
+ }
+ }
+
+ if (WasJoinGame.exchange(false)) {
+ std::lock_guard guard(HandlerMutex);
+ if (Handlers.joinGame) {
+ Handlers.joinGame(JoinGameSecret);
+ }
+ }
+
+ if (WasSpectateGame.exchange(false)) {
+ std::lock_guard guard(HandlerMutex);
+ if (Handlers.spectateGame) {
+ Handlers.spectateGame(SpectateGameSecret);
+ }
+ }
+
+ // Right now this batches up any requests and sends them all in a burst; I could imagine a world
+ // where the implementer would rather sequentially accept/reject each one before the next invite
+ // is sent. I left it this way because I could also imagine wanting to process these all and
+ // maybe show them in one common dialog and/or start fetching the avatars in parallel, and if
+ // not it should be trivial for the implementer to make a queue themselves.
+ while (JoinAskQueue.HavePendingSends()) {
+ auto req = JoinAskQueue.GetNextSendMessage();
+ {
+ std::lock_guard guard(HandlerMutex);
+ if (Handlers.joinRequest) {
+ DiscordUser du{req->userId, req->username, req->discriminator, req->avatar};
+ Handlers.joinRequest(&du);
+ }
+ }
+ JoinAskQueue.CommitSend();
+ }
+
+ if (!isConnected) {
+ // if we are not connected, disconnect message last
+ std::lock_guard guard(HandlerMutex);
+ if (wasDisconnected && Handlers.disconnected) {
+ Handlers.disconnected(LastDisconnectErrorCode, LastDisconnectErrorMessage);
+ }
+ }
+}
+
+extern "C" DISCORD_EXPORT void Discord_UpdateHandlers(DiscordEventHandlers* newHandlers)
+{
+ if (newHandlers) {
+#define HANDLE_EVENT_REGISTRATION(handler_name, event) \
+ if (!Handlers.handler_name && newHandlers->handler_name) { \
+ RegisterForEvent(event); \
+ } \
+ else if (Handlers.handler_name && !newHandlers->handler_name) { \
+ DeregisterForEvent(event); \
+ }
+
+ std::lock_guard guard(HandlerMutex);
+ HANDLE_EVENT_REGISTRATION(joinGame, "ACTIVITY_JOIN")
+ HANDLE_EVENT_REGISTRATION(spectateGame, "ACTIVITY_SPECTATE")
+ HANDLE_EVENT_REGISTRATION(joinRequest, "ACTIVITY_JOIN_REQUEST")
+
+#undef HANDLE_EVENT_REGISTRATION
+
+ Handlers = *newHandlers;
+ }
+ else {
+ std::lock_guard guard(HandlerMutex);
+ Handlers = {};
+ }
+ return;
+}
diff --git a/dep/discord-rpc/src/dllmain.cpp b/dep/discord-rpc/src/dllmain.cpp
new file mode 100644
index 000000000..fbfc2950d
--- /dev/null
+++ b/dep/discord-rpc/src/dllmain.cpp
@@ -0,0 +1,8 @@
+#include
+
+// outsmart GCC's missing-declarations warning
+BOOL WINAPI DllMain(HMODULE, DWORD, LPVOID);
+BOOL WINAPI DllMain(HMODULE, DWORD, LPVOID)
+{
+ return TRUE;
+}
diff --git a/dep/discord-rpc/src/msg_queue.h b/dep/discord-rpc/src/msg_queue.h
new file mode 100644
index 000000000..77f380e70
--- /dev/null
+++ b/dep/discord-rpc/src/msg_queue.h
@@ -0,0 +1,36 @@
+#pragma once
+
+#include
+
+// A simple queue. No locks, but only works with a single thread as producer and a single thread as
+// a consumer. Mutex up as needed.
+
+template
+class MsgQueue {
+ ElementType queue_[QueueSize];
+ std::atomic_uint nextAdd_{0};
+ std::atomic_uint nextSend_{0};
+ std::atomic_uint pendingSends_{0};
+
+public:
+ MsgQueue() {}
+
+ ElementType* GetNextAddMessage()
+ {
+ // if we are falling behind, bail
+ if (pendingSends_.load() >= QueueSize) {
+ return nullptr;
+ }
+ auto index = (nextAdd_++) % QueueSize;
+ return &queue_[index];
+ }
+ void CommitAdd() { ++pendingSends_; }
+
+ bool HavePendingSends() const { return pendingSends_.load() != 0; }
+ ElementType* GetNextSendMessage()
+ {
+ auto index = (nextSend_++) % QueueSize;
+ return &queue_[index];
+ }
+ void CommitSend() { --pendingSends_; }
+};
diff --git a/dep/discord-rpc/src/rpc_connection.cpp b/dep/discord-rpc/src/rpc_connection.cpp
new file mode 100644
index 000000000..093316216
--- /dev/null
+++ b/dep/discord-rpc/src/rpc_connection.cpp
@@ -0,0 +1,137 @@
+#include "rpc_connection.h"
+#include "serialization.h"
+
+#include
+
+static const int RpcVersion = 1;
+static RpcConnection Instance;
+
+/*static*/ RpcConnection* RpcConnection::Create(const char* applicationId)
+{
+ Instance.connection = BaseConnection::Create();
+ StringCopy(Instance.appId, applicationId);
+ return &Instance;
+}
+
+/*static*/ void RpcConnection::Destroy(RpcConnection*& c)
+{
+ c->Close();
+ BaseConnection::Destroy(c->connection);
+ c = nullptr;
+}
+
+void RpcConnection::Open()
+{
+ if (state == State::Connected) {
+ return;
+ }
+
+ if (state == State::Disconnected && !connection->Open()) {
+ return;
+ }
+
+ if (state == State::SentHandshake) {
+ JsonDocument message;
+ if (Read(message)) {
+ auto cmd = GetStrMember(&message, "cmd");
+ auto evt = GetStrMember(&message, "evt");
+ if (cmd && evt && !strcmp(cmd, "DISPATCH") && !strcmp(evt, "READY")) {
+ state = State::Connected;
+ if (onConnect) {
+ onConnect(message);
+ }
+ }
+ }
+ }
+ else {
+ sendFrame.opcode = Opcode::Handshake;
+ sendFrame.length = (uint32_t)JsonWriteHandshakeObj(
+ sendFrame.message, sizeof(sendFrame.message), RpcVersion, appId);
+
+ if (connection->Write(&sendFrame, sizeof(MessageFrameHeader) + sendFrame.length)) {
+ state = State::SentHandshake;
+ }
+ else {
+ Close();
+ }
+ }
+}
+
+void RpcConnection::Close()
+{
+ if (onDisconnect && (state == State::Connected || state == State::SentHandshake)) {
+ onDisconnect(lastErrorCode, lastErrorMessage);
+ }
+ connection->Close();
+ state = State::Disconnected;
+}
+
+bool RpcConnection::Write(const void* data, size_t length)
+{
+ sendFrame.opcode = Opcode::Frame;
+ memcpy(sendFrame.message, data, length);
+ sendFrame.length = (uint32_t)length;
+ if (!connection->Write(&sendFrame, sizeof(MessageFrameHeader) + length)) {
+ Close();
+ return false;
+ }
+ return true;
+}
+
+bool RpcConnection::Read(JsonDocument& message)
+{
+ if (state != State::Connected && state != State::SentHandshake) {
+ return false;
+ }
+ MessageFrame readFrame;
+ for (;;) {
+ bool didRead = connection->Read(&readFrame, sizeof(MessageFrameHeader));
+ if (!didRead) {
+ if (!connection->isOpen) {
+ lastErrorCode = (int)ErrorCode::PipeClosed;
+ StringCopy(lastErrorMessage, "Pipe closed");
+ Close();
+ }
+ return false;
+ }
+
+ if (readFrame.length > 0) {
+ didRead = connection->Read(readFrame.message, readFrame.length);
+ if (!didRead) {
+ lastErrorCode = (int)ErrorCode::ReadCorrupt;
+ StringCopy(lastErrorMessage, "Partial data in frame");
+ Close();
+ return false;
+ }
+ readFrame.message[readFrame.length] = 0;
+ }
+
+ switch (readFrame.opcode) {
+ case Opcode::Close: {
+ message.ParseInsitu(readFrame.message);
+ lastErrorCode = GetIntMember(&message, "code");
+ StringCopy(lastErrorMessage, GetStrMember(&message, "message", ""));
+ Close();
+ return false;
+ }
+ case Opcode::Frame:
+ message.ParseInsitu(readFrame.message);
+ return true;
+ case Opcode::Ping:
+ readFrame.opcode = Opcode::Pong;
+ if (!connection->Write(&readFrame, sizeof(MessageFrameHeader) + readFrame.length)) {
+ Close();
+ }
+ break;
+ case Opcode::Pong:
+ break;
+ case Opcode::Handshake:
+ default:
+ // something bad happened
+ lastErrorCode = (int)ErrorCode::ReadCorrupt;
+ StringCopy(lastErrorMessage, "Bad ipc frame");
+ Close();
+ return false;
+ }
+ }
+}
diff --git a/dep/discord-rpc/src/rpc_connection.h b/dep/discord-rpc/src/rpc_connection.h
new file mode 100644
index 000000000..bbdd05c79
--- /dev/null
+++ b/dep/discord-rpc/src/rpc_connection.h
@@ -0,0 +1,59 @@
+#pragma once
+
+#include "connection.h"
+#include "serialization.h"
+
+// I took this from the buffer size libuv uses for named pipes; I suspect ours would usually be much
+// smaller.
+constexpr size_t MaxRpcFrameSize = 64 * 1024;
+
+struct RpcConnection {
+ enum class ErrorCode : int {
+ Success = 0,
+ PipeClosed = 1,
+ ReadCorrupt = 2,
+ };
+
+ enum class Opcode : uint32_t {
+ Handshake = 0,
+ Frame = 1,
+ Close = 2,
+ Ping = 3,
+ Pong = 4,
+ };
+
+ struct MessageFrameHeader {
+ Opcode opcode;
+ uint32_t length;
+ };
+
+ struct MessageFrame : public MessageFrameHeader {
+ char message[MaxRpcFrameSize - sizeof(MessageFrameHeader)];
+ };
+
+ enum class State : uint32_t {
+ Disconnected,
+ SentHandshake,
+ AwaitingResponse,
+ Connected,
+ };
+
+ BaseConnection* connection{nullptr};
+ State state{State::Disconnected};
+ void (*onConnect)(JsonDocument& message){nullptr};
+ void (*onDisconnect)(int errorCode, const char* message){nullptr};
+ char appId[64]{};
+ int lastErrorCode{0};
+ char lastErrorMessage[256]{};
+ RpcConnection::MessageFrame sendFrame;
+
+ static RpcConnection* Create(const char* applicationId);
+ static void Destroy(RpcConnection*&);
+
+ inline bool IsOpen() const { return state == State::Connected; }
+
+ void Open();
+ void Close();
+ bool Write(const void* data, size_t length);
+ bool Read(JsonDocument& message);
+};
diff --git a/dep/discord-rpc/src/serialization.cpp b/dep/discord-rpc/src/serialization.cpp
new file mode 100644
index 000000000..6cc1e9013
--- /dev/null
+++ b/dep/discord-rpc/src/serialization.cpp
@@ -0,0 +1,245 @@
+#include "serialization.h"
+#include "connection.h"
+#include "discord_rpc.h"
+
+template
+void NumberToString(char* dest, T number)
+{
+ if (!number) {
+ *dest++ = '0';
+ *dest++ = 0;
+ return;
+ }
+ if (number < 0) {
+ *dest++ = '-';
+ number = -number;
+ }
+ char temp[32];
+ int place = 0;
+ while (number) {
+ auto digit = number % 10;
+ number = number / 10;
+ temp[place++] = '0' + (char)digit;
+ }
+ for (--place; place >= 0; --place) {
+ *dest++ = temp[place];
+ }
+ *dest = 0;
+}
+
+// it's ever so slightly faster to not have to strlen the key
+template
+void WriteKey(JsonWriter& w, T& k)
+{
+ w.Key(k, sizeof(T) - 1);
+}
+
+struct WriteObject {
+ JsonWriter& writer;
+ WriteObject(JsonWriter& w)
+ : writer(w)
+ {
+ writer.StartObject();
+ }
+ template
+ WriteObject(JsonWriter& w, T& name)
+ : writer(w)
+ {
+ WriteKey(writer, name);
+ writer.StartObject();
+ }
+ ~WriteObject() { writer.EndObject(); }
+};
+
+struct WriteArray {
+ JsonWriter& writer;
+ template
+ WriteArray(JsonWriter& w, T& name)
+ : writer(w)
+ {
+ WriteKey(writer, name);
+ writer.StartArray();
+ }
+ ~WriteArray() { writer.EndArray(); }
+};
+
+template
+void WriteOptionalString(JsonWriter& w, T& k, const char* value)
+{
+ if (value && value[0]) {
+ w.Key(k, sizeof(T) - 1);
+ w.String(value);
+ }
+}
+
+static void JsonWriteNonce(JsonWriter& writer, int nonce)
+{
+ WriteKey(writer, "nonce");
+ char nonceBuffer[32];
+ NumberToString(nonceBuffer, nonce);
+ writer.String(nonceBuffer);
+}
+
+size_t JsonWriteRichPresenceObj(char* dest,
+ size_t maxLen,
+ int nonce,
+ int pid,
+ const DiscordRichPresence* presence)
+{
+ JsonWriter writer(dest, maxLen);
+
+ {
+ WriteObject top(writer);
+
+ JsonWriteNonce(writer, nonce);
+
+ WriteKey(writer, "cmd");
+ writer.String("SET_ACTIVITY");
+
+ {
+ WriteObject args(writer, "args");
+
+ WriteKey(writer, "pid");
+ writer.Int(pid);
+
+ if (presence != nullptr) {
+ WriteObject activity(writer, "activity");
+
+ WriteOptionalString(writer, "state", presence->state);
+ WriteOptionalString(writer, "details", presence->details);
+
+ if (presence->startTimestamp || presence->endTimestamp) {
+ WriteObject timestamps(writer, "timestamps");
+
+ if (presence->startTimestamp) {
+ WriteKey(writer, "start");
+ writer.Int64(presence->startTimestamp);
+ }
+
+ if (presence->endTimestamp) {
+ WriteKey(writer, "end");
+ writer.Int64(presence->endTimestamp);
+ }
+ }
+
+ if ((presence->largeImageKey && presence->largeImageKey[0]) ||
+ (presence->largeImageText && presence->largeImageText[0]) ||
+ (presence->smallImageKey && presence->smallImageKey[0]) ||
+ (presence->smallImageText && presence->smallImageText[0])) {
+ WriteObject assets(writer, "assets");
+ WriteOptionalString(writer, "large_image", presence->largeImageKey);
+ WriteOptionalString(writer, "large_text", presence->largeImageText);
+ WriteOptionalString(writer, "small_image", presence->smallImageKey);
+ WriteOptionalString(writer, "small_text", presence->smallImageText);
+ }
+
+ if ((presence->partyId && presence->partyId[0]) || presence->partySize ||
+ presence->partyMax) {
+ WriteObject party(writer, "party");
+ WriteOptionalString(writer, "id", presence->partyId);
+ if (presence->partySize && presence->partyMax) {
+ WriteArray size(writer, "size");
+ writer.Int(presence->partySize);
+ writer.Int(presence->partyMax);
+ }
+ }
+
+ if ((presence->matchSecret && presence->matchSecret[0]) ||
+ (presence->joinSecret && presence->joinSecret[0]) ||
+ (presence->spectateSecret && presence->spectateSecret[0])) {
+ WriteObject secrets(writer, "secrets");
+ WriteOptionalString(writer, "match", presence->matchSecret);
+ WriteOptionalString(writer, "join", presence->joinSecret);
+ WriteOptionalString(writer, "spectate", presence->spectateSecret);
+ }
+
+ writer.Key("instance");
+ writer.Bool(presence->instance != 0);
+ }
+ }
+ }
+
+ return writer.Size();
+}
+
+size_t JsonWriteHandshakeObj(char* dest, size_t maxLen, int version, const char* applicationId)
+{
+ JsonWriter writer(dest, maxLen);
+
+ {
+ WriteObject obj(writer);
+ WriteKey(writer, "v");
+ writer.Int(version);
+ WriteKey(writer, "client_id");
+ writer.String(applicationId);
+ }
+
+ return writer.Size();
+}
+
+size_t JsonWriteSubscribeCommand(char* dest, size_t maxLen, int nonce, const char* evtName)
+{
+ JsonWriter writer(dest, maxLen);
+
+ {
+ WriteObject obj(writer);
+
+ JsonWriteNonce(writer, nonce);
+
+ WriteKey(writer, "cmd");
+ writer.String("SUBSCRIBE");
+
+ WriteKey(writer, "evt");
+ writer.String(evtName);
+ }
+
+ return writer.Size();
+}
+
+size_t JsonWriteUnsubscribeCommand(char* dest, size_t maxLen, int nonce, const char* evtName)
+{
+ JsonWriter writer(dest, maxLen);
+
+ {
+ WriteObject obj(writer);
+
+ JsonWriteNonce(writer, nonce);
+
+ WriteKey(writer, "cmd");
+ writer.String("UNSUBSCRIBE");
+
+ WriteKey(writer, "evt");
+ writer.String(evtName);
+ }
+
+ return writer.Size();
+}
+
+size_t JsonWriteJoinReply(char* dest, size_t maxLen, const char* userId, int reply, int nonce)
+{
+ JsonWriter writer(dest, maxLen);
+
+ {
+ WriteObject obj(writer);
+
+ WriteKey(writer, "cmd");
+ if (reply == DISCORD_REPLY_YES) {
+ writer.String("SEND_ACTIVITY_JOIN_INVITE");
+ }
+ else {
+ writer.String("CLOSE_ACTIVITY_JOIN_REQUEST");
+ }
+
+ WriteKey(writer, "args");
+ {
+ WriteObject args(writer);
+
+ WriteKey(writer, "user_id");
+ writer.String(userId);
+ }
+
+ JsonWriteNonce(writer, nonce);
+ }
+
+ return writer.Size();
+}
diff --git a/dep/discord-rpc/src/serialization.h b/dep/discord-rpc/src/serialization.h
new file mode 100644
index 000000000..9c462dc28
--- /dev/null
+++ b/dep/discord-rpc/src/serialization.h
@@ -0,0 +1,215 @@
+#pragma once
+
+#include
+
+#ifndef __MINGW32__
+#pragma warning(push)
+
+#pragma warning(disable : 4061) // enum is not explicitly handled by a case label
+#pragma warning(disable : 4365) // signed/unsigned mismatch
+#pragma warning(disable : 4464) // relative include path contains
+#pragma warning(disable : 4668) // is not defined as a preprocessor macro
+#pragma warning(disable : 6313) // Incorrect operator
+#endif // __MINGW32__
+
+#include "rapidjson/document.h"
+#include "rapidjson/stringbuffer.h"
+#include "rapidjson/writer.h"
+
+#ifndef __MINGW32__
+#pragma warning(pop)
+#endif // __MINGW32__
+
+// if only there was a standard library function for this
+template
+inline size_t StringCopy(char (&dest)[Len], const char* src)
+{
+ if (!src || !Len) {
+ return 0;
+ }
+ size_t copied;
+ char* out = dest;
+ for (copied = 1; *src && copied < Len; ++copied) {
+ *out++ = *src++;
+ }
+ *out = 0;
+ return copied - 1;
+}
+
+size_t JsonWriteHandshakeObj(char* dest, size_t maxLen, int version, const char* applicationId);
+
+// Commands
+struct DiscordRichPresence;
+size_t JsonWriteRichPresenceObj(char* dest,
+ size_t maxLen,
+ int nonce,
+ int pid,
+ const DiscordRichPresence* presence);
+size_t JsonWriteSubscribeCommand(char* dest, size_t maxLen, int nonce, const char* evtName);
+
+size_t JsonWriteUnsubscribeCommand(char* dest, size_t maxLen, int nonce, const char* evtName);
+
+size_t JsonWriteJoinReply(char* dest, size_t maxLen, const char* userId, int reply, int nonce);
+
+// I want to use as few allocations as I can get away with, and to do that with RapidJson, you need
+// to supply some of your own allocators for stuff rather than use the defaults
+
+class LinearAllocator {
+public:
+ char* buffer_;
+ char* end_;
+ LinearAllocator()
+ {
+ assert(0); // needed for some default case in rapidjson, should not use
+ }
+ LinearAllocator(char* buffer, size_t size)
+ : buffer_(buffer)
+ , end_(buffer + size)
+ {
+ }
+ static const bool kNeedFree = false;
+ void* Malloc(size_t size)
+ {
+ char* res = buffer_;
+ buffer_ += size;
+ if (buffer_ > end_) {
+ buffer_ = res;
+ return nullptr;
+ }
+ return res;
+ }
+ void* Realloc(void* originalPtr, size_t originalSize, size_t newSize)
+ {
+ if (newSize == 0) {
+ return nullptr;
+ }
+ // allocate how much you need in the first place
+ assert(!originalPtr && !originalSize);
+ // unused parameter warning
+ (void)(originalPtr);
+ (void)(originalSize);
+ return Malloc(newSize);
+ }
+ static void Free(void* ptr)
+ {
+ /* shrug */
+ (void)ptr;
+ }
+};
+
+template
+class FixedLinearAllocator : public LinearAllocator {
+public:
+ char fixedBuffer_[Size];
+ FixedLinearAllocator()
+ : LinearAllocator(fixedBuffer_, Size)
+ {
+ }
+ static const bool kNeedFree = false;
+};
+
+// wonder why this isn't a thing already, maybe I missed it
+class DirectStringBuffer {
+public:
+ using Ch = char;
+ char* buffer_;
+ char* end_;
+ char* current_;
+
+ DirectStringBuffer(char* buffer, size_t maxLen)
+ : buffer_(buffer)
+ , end_(buffer + maxLen)
+ , current_(buffer)
+ {
+ }
+
+ void Put(char c)
+ {
+ if (current_ < end_) {
+ *current_++ = c;
+ }
+ }
+ void Flush() {}
+ size_t GetSize() const { return (size_t)(current_ - buffer_); }
+};
+
+using MallocAllocator = rapidjson::CrtAllocator;
+using PoolAllocator = rapidjson::MemoryPoolAllocator;
+using UTF8 = rapidjson::UTF8;
+// Writer appears to need about 16 bytes per nested object level (with 64bit size_t)
+using StackAllocator = FixedLinearAllocator<2048>;
+constexpr size_t WriterNestingLevels = 2048 / (2 * sizeof(size_t));
+using JsonWriterBase =
+ rapidjson::Writer;
+class JsonWriter : public JsonWriterBase {
+public:
+ DirectStringBuffer stringBuffer_;
+ StackAllocator stackAlloc_;
+
+ JsonWriter(char* dest, size_t maxLen)
+ : JsonWriterBase(stringBuffer_, &stackAlloc_, WriterNestingLevels)
+ , stringBuffer_(dest, maxLen)
+ , stackAlloc_()
+ {
+ }
+
+ size_t Size() const { return stringBuffer_.GetSize(); }
+};
+
+using JsonDocumentBase = rapidjson::GenericDocument;
+class JsonDocument : public JsonDocumentBase {
+public:
+ static const int kDefaultChunkCapacity = 32 * 1024;
+ // json parser will use this buffer first, then allocate more if needed; I seriously doubt we
+ // send any messages that would use all of this, though.
+ char parseBuffer_[32 * 1024];
+ MallocAllocator mallocAllocator_;
+ PoolAllocator poolAllocator_;
+ StackAllocator stackAllocator_;
+ JsonDocument()
+ : JsonDocumentBase(rapidjson::kObjectType,
+ &poolAllocator_,
+ sizeof(stackAllocator_.fixedBuffer_),
+ &stackAllocator_)
+ , poolAllocator_(parseBuffer_, sizeof(parseBuffer_), kDefaultChunkCapacity, &mallocAllocator_)
+ , stackAllocator_()
+ {
+ }
+};
+
+using JsonValue = rapidjson::GenericValue;
+
+inline JsonValue* GetObjMember(JsonValue* obj, const char* name)
+{
+ if (obj) {
+ auto member = obj->FindMember(name);
+ if (member != obj->MemberEnd() && member->value.IsObject()) {
+ return &member->value;
+ }
+ }
+ return nullptr;
+}
+
+inline int GetIntMember(JsonValue* obj, const char* name, int notFoundDefault = 0)
+{
+ if (obj) {
+ auto member = obj->FindMember(name);
+ if (member != obj->MemberEnd() && member->value.IsInt()) {
+ return member->value.GetInt();
+ }
+ }
+ return notFoundDefault;
+}
+
+inline const char* GetStrMember(JsonValue* obj,
+ const char* name,
+ const char* notFoundDefault = nullptr)
+{
+ if (obj) {
+ auto member = obj->FindMember(name);
+ if (member != obj->MemberEnd() && member->value.IsString()) {
+ return member->value.GetString();
+ }
+ }
+ return notFoundDefault;
+}
diff --git a/duckstation.sln b/duckstation.sln
index ff49bc430..03812b4d8 100644
--- a/duckstation.sln
+++ b/duckstation.sln
@@ -49,6 +49,8 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "common-tests", "src\common-
EndProject
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "scmversion", "src\scmversion\scmversion.vcxproj", "{075CED82-6A20-46DF-94C7-9624AC9DDBEB}"
EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "discord-rpc", "dep\discord-rpc\discord-rpc.vcxproj", "{4266505B-DBAF-484B-AB31-B53B9C8235B3}"
+EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|x64 = Debug|x64
@@ -413,6 +415,22 @@ Global
{075CED82-6A20-46DF-94C7-9624AC9DDBEB}.ReleaseLTCG|x64.Build.0 = ReleaseLTCG|x64
{075CED82-6A20-46DF-94C7-9624AC9DDBEB}.ReleaseLTCG|x86.ActiveCfg = ReleaseLTCG|Win32
{075CED82-6A20-46DF-94C7-9624AC9DDBEB}.ReleaseLTCG|x86.Build.0 = ReleaseLTCG|Win32
+ {4266505B-DBAF-484B-AB31-B53B9C8235B3}.Debug|x64.ActiveCfg = Debug|x64
+ {4266505B-DBAF-484B-AB31-B53B9C8235B3}.Debug|x64.Build.0 = Debug|x64
+ {4266505B-DBAF-484B-AB31-B53B9C8235B3}.Debug|x86.ActiveCfg = Debug|Win32
+ {4266505B-DBAF-484B-AB31-B53B9C8235B3}.Debug|x86.Build.0 = Debug|Win32
+ {4266505B-DBAF-484B-AB31-B53B9C8235B3}.DebugFast|x64.ActiveCfg = DebugFast|x64
+ {4266505B-DBAF-484B-AB31-B53B9C8235B3}.DebugFast|x64.Build.0 = DebugFast|x64
+ {4266505B-DBAF-484B-AB31-B53B9C8235B3}.DebugFast|x86.ActiveCfg = DebugFast|Win32
+ {4266505B-DBAF-484B-AB31-B53B9C8235B3}.DebugFast|x86.Build.0 = DebugFast|Win32
+ {4266505B-DBAF-484B-AB31-B53B9C8235B3}.Release|x64.ActiveCfg = Release|x64
+ {4266505B-DBAF-484B-AB31-B53B9C8235B3}.Release|x64.Build.0 = Release|x64
+ {4266505B-DBAF-484B-AB31-B53B9C8235B3}.Release|x86.ActiveCfg = Release|Win32
+ {4266505B-DBAF-484B-AB31-B53B9C8235B3}.Release|x86.Build.0 = Release|Win32
+ {4266505B-DBAF-484B-AB31-B53B9C8235B3}.ReleaseLTCG|x64.ActiveCfg = ReleaseLTCG|x64
+ {4266505B-DBAF-484B-AB31-B53B9C8235B3}.ReleaseLTCG|x64.Build.0 = ReleaseLTCG|x64
+ {4266505B-DBAF-484B-AB31-B53B9C8235B3}.ReleaseLTCG|x86.ActiveCfg = ReleaseLTCG|Win32
+ {4266505B-DBAF-484B-AB31-B53B9C8235B3}.ReleaseLTCG|x86.Build.0 = ReleaseLTCG|Win32
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
@@ -433,6 +451,7 @@ Global
{DD944834-7899-4C1C-A4C1-064B5009D239} = {BA490C0E-497D-4634-A21E-E65012006385}
{09553C96-9F39-49BF-8AE6-7ACBD07C410C} = {BA490C0E-497D-4634-A21E-E65012006385}
{49953E1B-2EF7-46A4-B88B-1BF9E099093B} = {BA490C0E-497D-4634-A21E-E65012006385}
+ {4266505B-DBAF-484B-AB31-B53B9C8235B3} = {BA490C0E-497D-4634-A21E-E65012006385}
EndGlobalSection
GlobalSection(ExtensibilityGlobals) = postSolution
SolutionGuid = {26E40B32-7C1D-48D0-95F4-1A500E054028}