Mercurial > remote-gamepad
annotate source/main.c @ 4:557d35fcf15a default tip
Properly exit the soc:U subsystem so we don’t crash on exit.
| author | Emmanuel Gil Peyrot <linkmauve@linkmauve.fr> |
|---|---|
| date | Tue, 18 Aug 2015 01:42:36 +0100 |
| parents | 4c4be527a8d5 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 Circle Pad example made by Aurelio Mannara for ctrulib | |
| 3 Please refer to https://github.com/smealum/ctrulib/blob/master/libctru/include/3ds/services/hid.h for more information | |
| 4 This code was modified for the last time on: 12/13/2014 2:20 UTC+1 | |
| 5 | |
| 6 This wouldn't be possible without the amazing work done by: | |
| 7 -Smealum | |
| 8 -fincs | |
| 9 -WinterMute | |
| 10 -yellows8 | |
| 11 -plutoo | |
| 12 -mtheall | |
| 13 -Many others who worked on 3DS and I'm surely forgetting about | |
| 14 */ | |
| 15 | |
| 16 #include <3ds.h> | |
| 17 #include <arpa/inet.h> | |
| 18 #include <assert.h> | |
| 19 #include <malloc.h> | |
| 20 #include <netdb.h> | |
| 21 #include <stdio.h> | |
| 22 #include <string.h> | |
| 23 #include <sys/socket.h> | |
| 24 | |
|
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25 struct state_t { |
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26 u32 keys; |
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27 circlePosition pad, cpad; |
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28 touchPosition touch; |
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29 }; |
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30 |
| 0 | 31 static u32 *SOC_buffer = NULL; |
| 32 | |
| 33 int create_socket(int domain, int type, struct sockaddr *addr) | |
| 34 { | |
| 35 int fd = socket(domain, type, 0); | |
| 36 if (fd < 0) { | |
|
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37 puts("socket() failed."); |
| 0 | 38 return -1; |
| 39 } | |
| 40 | |
| 41 if (addr) { | |
| 42 if (connect(fd, addr, sizeof(*addr)) < 0) { | |
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43 puts("connect() failed."); |
| 0 | 44 return -1; |
| 45 } | |
| 46 } | |
| 47 | |
| 48 return fd; | |
| 49 } | |
| 50 | |
| 51 struct sockaddr* get_sockaddr_from_hostname(const char *hostname, int port) | |
| 52 { | |
| 53 struct hostent *server = gethostbyname(hostname); | |
| 54 if (!server) { | |
|
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55 puts("gethostbyname() failed."); |
| 0 | 56 return NULL; |
| 57 } | |
| 58 | |
| 59 struct sockaddr_in *addr = calloc(1, sizeof(struct sockaddr_in)); | |
| 60 if (!addr) { | |
|
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61 puts("calloc() failed."); |
| 0 | 62 return NULL; |
| 63 } | |
| 64 | |
| 65 //memset(&addr, 0, sizeof(struct sockaddr_in)); | |
| 66 addr->sin_family = AF_INET; | |
| 67 addr->sin_port = htons(port); | |
| 68 memcpy(&addr->sin_addr.s_addr, server->h_addr_list[0], server->h_length); | |
| 69 | |
| 70 return (struct sockaddr*) addr; | |
| 71 } | |
| 72 | |
| 73 struct sockaddr* get_sockaddr_from_ip(const char *hostname, int port) | |
| 74 { | |
| 75 struct sockaddr_in *addr = calloc(1, sizeof(struct sockaddr_in)); | |
| 76 if (!addr) { | |
|
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77 puts("calloc() failed."); |
| 0 | 78 return NULL; |
| 79 } | |
| 80 | |
| 81 //memset(&addr, 0, sizeof(struct sockaddr_in)); | |
| 82 addr->sin_family = AF_INET; | |
| 83 addr->sin_port = htons(port); | |
| 84 addr->sin_addr.s_addr = inet_addr(hostname); | |
| 85 | |
| 86 return (struct sockaddr*) addr; | |
| 87 } | |
| 88 | |
| 89 struct network_t { | |
| 90 int tcp_fd; | |
| 91 int udp_fd; | |
| 92 struct sockaddr *addr; | |
| 93 int addr_size; | |
| 94 }; | |
| 95 | |
| 96 struct network_t *networkInit(const char *hostname, int port) | |
| 97 { | |
| 98 const unsigned SOC_ALIGN = 0x1000; | |
| 99 const unsigned SOC_BUFFERSIZE = 0x100000; | |
| 100 | |
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101 SOC_buffer = (u32*)memalign(SOC_ALIGN, SOC_BUFFERSIZE); |
| 0 | 102 if (!SOC_buffer) { |
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103 puts("memalign() failed."); |
| 0 | 104 return NULL; |
| 105 } | |
| 106 | |
| 107 unsigned initialized = SOC_Initialize(SOC_buffer, SOC_BUFFERSIZE); | |
| 108 if (initialized) { | |
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109 puts("SOC_Initialize() failed."); |
| 0 | 110 return NULL; |
| 111 } | |
| 112 | |
| 113 //struct sockaddr *addr = get_sockaddr_from_hostname(hostname, port); | |
| 114 struct sockaddr *addr = get_sockaddr_from_ip(hostname, port); | |
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115 if (!addr) { |
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116 puts("get_sockaddr_from_ip() failed."); |
| 0 | 117 return NULL; |
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118 } |
| 0 | 119 |
| 120 // TODO: IPv6 | |
| 121 int domain = AF_INET; | |
| 122 | |
| 123 struct network_t *n = malloc(sizeof(struct network_t)); | |
| 124 //n->tcp_fd = create_socket(domain, SOCK_STREAM, addr); | |
| 125 n->udp_fd = create_socket(domain, SOCK_DGRAM, NULL); | |
| 126 n->addr = addr; | |
| 127 n->addr_size = sizeof(struct sockaddr_in); | |
| 128 return n; | |
| 129 } | |
| 130 | |
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131 int sendState(struct network_t *n, struct state_t *state) |
| 0 | 132 { |
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133 const char *msg = (const char*) state; |
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134 const int msglen = sizeof(struct state_t); |
| 0 | 135 return sendto(n->udp_fd, msg, msglen, 0, n->addr, n->addr_size); |
| 136 } | |
| 137 | |
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138 void exitWithMessage(const char *message) |
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139 { |
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140 puts(message); |
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141 fflush(stdout); |
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142 gfxFlushBuffers(); |
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143 gfxSwapBuffers(); |
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144 for (int i=0; i < 60; ++i) |
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145 gspWaitForVBlank(); |
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146 SOC_Shutdown(); |
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147 gfxExit(); |
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148 } |
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149 |
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150 int main(void) |
| 0 | 151 { |
| 152 //Matrix containing the name of each key. Useful for printing when a key is pressed | |
| 153 char keysNames[32][32] = { | |
| 154 "KEY_A", "KEY_B", "KEY_SELECT", "KEY_START", | |
| 155 "KEY_DRIGHT", "KEY_DLEFT", "KEY_DUP", "KEY_DDOWN", | |
| 156 "KEY_R", "KEY_L", "KEY_X", "KEY_Y", | |
| 157 "", "", "KEY_ZL", "KEY_ZR", | |
| 158 "", "", "", "", | |
| 159 "KEY_TOUCH", "", "", "", | |
| 160 "KEY_CSTICK_RIGHT", "KEY_CSTICK_LEFT", "KEY_CSTICK_UP", "KEY_CSTICK_DOWN", | |
| 161 "KEY_CPAD_RIGHT", "KEY_CPAD_LEFT", "KEY_CPAD_UP", "KEY_CPAD_DOWN" | |
| 162 }; | |
| 163 | |
| 164 // Initialize services | |
| 165 gfxInitDefault(); | |
| 166 | |
| 167 //Initialize console on top screen. Using NULL as the second argument tells the console library to use the internal console structure as current one | |
| 168 consoleInit(GFX_TOP, NULL); | |
| 169 | |
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170 struct state_t old_state = {0xffffffff, {0xffff, 0xffff}, {0xffff, 0xffff}, {0xffff, 0xffff}}; //In these variables there will be information about keys detected in the previous frame |
| 0 | 171 |
| 172 // Initialize the network | |
| 173 struct network_t *n = networkInit("192.168.0.13", 16150); | |
| 174 if (!n) { | |
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175 exitWithMessage("networkInit() failed."); |
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176 return 1; |
| 0 | 177 } |
| 178 | |
| 179 // Main loop | |
| 180 while (aptMainLoop()) | |
| 181 { | |
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182 static struct state_t state; |
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183 |
| 0 | 184 //Scan all the inputs. This should be done once for each frame |
| 185 hidScanInput(); | |
| 186 | |
| 187 //hidKeysHeld returns information about which buttons have are held down in this frame | |
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188 state.keys = hidKeysHeld(); |
| 0 | 189 |
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190 //Read both pads position |
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191 hidCircleRead(&state.pad); |
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192 hidCstickRead(&state.cpad); |
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193 |
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194 // FIXME: use HOME instead |
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195 if (state.keys & KEY_START) break; // break in order to return to hbmenu |
| 0 | 196 |
| 197 //Do the keys printing only if keys have changed | |
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198 if (memcmp(&state, &old_state, sizeof(struct state_t))) |
| 0 | 199 { |
| 200 //Clear console | |
| 201 consoleClear(); | |
| 202 | |
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203 //Every line must be rewritten because we cleared the whole console |
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204 printf("\x1b[0;0HPress Start to exit.\n"); |
| 0 | 205 |
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206 //Print both pads position |
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207 printf("CirclePad position: %04d; %04d\n", state.pad.dx, state.pad.dy); |
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208 printf("CPad position: %04d; %04d\n", state.cpad.dx, state.cpad.dy); |
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209 |
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210 //Move the cursor to the fourth row because on the third one we'll write the circle pad position |
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211 printf("\x1b[3;0H"); |
| 0 | 212 |
| 213 //Check if some of the keys are down, held or up | |
| 214 for (int i = 0; i < 32; i++) | |
| 215 { | |
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216 if (state.keys & BIT(i)) |
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217 printf("%s\n", keysNames[i]); |
| 0 | 218 } |
| 219 | |
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220 if (sendState(n, &state) < 0) { |
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221 exitWithMessage("sendState() failed."); |
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222 return 1; |
| 0 | 223 } |
| 224 } | |
| 225 | |
| 226 //Set keys old values for the next frame | |
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227 memcpy(&old_state, &state, sizeof(struct state_t)); |
| 0 | 228 |
| 229 // Flush and swap framebuffers | |
| 230 gfxFlushBuffers(); | |
| 231 gfxSwapBuffers(); | |
| 232 | |
| 233 //Wait for VBlank | |
| 234 gspWaitForVBlank(); | |
| 235 } | |
| 236 | |
| 237 // Exit services | |
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238 exitWithMessage("Exiting..."); |
| 0 | 239 return 0; |
| 240 } |