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Modified for use for eth0

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This commit is contained in:
Hylke44 2017-02-18 01:24:00 +01:00
parent bea3ec8fec
commit e26592df19
4 changed files with 179 additions and 54 deletions
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133
C/Server/main.c
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@ -53,10 +53,12 @@ static ssize_t get_udp_packet(int sock_fd, char *packet, size_t size)
// application entry point
int main(int argc, char* argv[])
{
char packet[1120];
uint8_t packet[1120 + 32];
ssize_t packet_size;
uint16_t x, y;
uint8_t r, g, b, a;
uint8_t pixellength = 0, protocol, version;
uint16_t i;
int sock_fd = get_udp_socket(UDP_PORT);
@ -66,36 +68,101 @@ int main(int argc, char* argv[])
}
// draw...
int x, y;
uint8_t r, g, b, a;
int pixeloffset = 1;
int pixellength = 0;
while( (packet_size = get_udp_packet(sock_fd, packet, sizeof(packet))) >= 0 ) {
if((uint8_t)packet[0] == 1){
pixellength = 8;
} else {
pixellength = 7;
}
// how many pixels
//pixelcount = (packet_size-1)/pixellength;
//printf("%d pixels in packet of size: %d using a pixel size of: %d \n", pixelcount, packet_size, pixellength);
// fetch a pixel from the udp socket
int i = 0;
for(i=pixeloffset; // skip pixeloffset
i<packet_size-(pixellength-1); // walk trough all bytes untill we get to the end minus one package length
i+=pixellength){
x = (uint8_t)packet[i ] + (((uint8_t)packet[i+1])<<8);
y = (uint8_t)packet[i+2] + (((uint8_t)packet[i+3])<<8);
r = packet[i+4];
g = packet[i+5];
b = packet[i+6];
a = 0;
//printf("%d %d %d %d %d %d\n", x, y, r, g, b, a);
// Write pixel to screen
write_pixel_to_screen(x, y, r, g, b, a);
}
while( (packet_size = get_udp_packet(sock_fd, (char*)&packet, sizeof(packet))) >= 0 ) {
// Get protocol from the packet
version = packet[1]; //
protocol = packet[0]; // Alpha in old
//printf("V:%d, P:%d\n", version, protocol);
switch (protocol) {
// Protocol 0: xyrgb 16:16:8:8:8 specified for each pixel
case 0:
pixellength = 7;
for (i=2; i<packet_size; i+=pixellength) {
x = packet[i ] | packet[i+1]<<8;
y = packet[i+2] | packet[i+3]<<8;
r = packet[i+4];
g = packet[i+5];
b = packet[i+6];
a = 0xFF;
write_pixel_to_screen(x, y, r, g, b, a);
}
break;
// Protocol 1: xyrgba 16:16:8:8:8:8 specified for each pixel
case 1:
pixellength = 8;
for (i=2; i<packet_size; i+=pixellength) {
x = packet[i ] | packet[i+1]<<8;
y = packet[i+2] | packet[i+3]<<8;
r = packet[i+4];
g = packet[i+5];
b = packet[i+6];
a = packet[i+7];
write_pixel_to_screen(x, y, r, g, b, a);
}
break;
// Protocol 2: xyrgb 12:12:8:8:8 specified for each pixel
case 2:
pixellength = 6;
for (i=2; i<packet_size; i+=pixellength) {
x = packet[i ] | (packet[i+1]&0xF0)<<4;
y = (packet[i+1]&0x0F) | packet[i+2]<<4;
r = packet[i+3];
g = packet[i+4];
b = packet[i+5];
a = 0xFF;
write_pixel_to_screen(x, y, r, g, b, a);
}
break;
// Protocol 3: xyrgba 12:12:8:8:8:8 specified for each pixel
case 3:
pixellength = 7;
for (i=2; i<packet_size; i+=pixellength) {
x = packet[i ] | (packet[i+1]&0xF0)<<4;
y = (packet[i+1]&0x0F) | packet[i+2]<<4;
r = packet[i+3];
g = packet[i+4];
b = packet[i+5];
a = packet[i+6];
write_pixel_to_screen(x, y, r, g, b, a);
}
break;
// Protocol 4: xyrgb 12:12:3:3:2 specified for each pixel
case 4:
pixellength = 4;
for (i=2; i<packet_size; i+=pixellength) {
x = packet[i ] | (packet[i+1]&0xF0)<<4;
y = (packet[i+1]&0x0F) | packet[i+2]<<4;
r = packet[i+3] & 0xE0;
g = packet[i+3]<<3 & 0xE0;
b = packet[i+3]<<6 & 0xC0;
a = 0xFF;
write_pixel_to_screen(x, y, r, g, b, a);
}
break;
// Protocol 5: xyrgba 12:12:2:2:2:2 specified for each pixel
case 5:
pixellength = 4;
for (i=2; i<packet_size; i+=pixellength) {
x = packet[i ] | (packet[i+1]&0xF0)<<4;
y = (packet[i+1]&0x0F) | packet[i+2]<<4;
r = packet[i+3] & 0xC0;
g = packet[i+3]<<2 & 0xC0;
b = packet[i+3]<<4 & 0xC0;
a = packet[i+3]<<6 & 0xC0;
write_pixel_to_screen(x, y, r, g, b, a);
}
break;
// Error no protocol defined
default:
break;
}
}
// De init screen buffer