We have picture!
authorSteinar H. Gunderson <sesse@samfundet.no>
Fri, 4 Feb 2005 16:44:22 +0000 (16:44 +0000)
committerSteinar H. Gunderson <sesse@samfundet.no>
Fri, 4 Feb 2005 16:44:22 +0000 (16:44 +0000)
rdpsrv.c

index 432147b..1bf41d7 100644 (file)
--- a/rdpsrv.c
+++ b/rdpsrv.c
@@ -159,10 +159,10 @@ int vnc_init()
        buf[3] = 0;
        buf[4] = 0; // ypos
        buf[5] = 0;
-       buf[6] = 0; // width
-       buf[7] = 640 % 0xff;
-       buf[8] = 0; // height
-       buf[9] = 480 % 0xff;
+       buf[6] = 640 >> 8; // width
+       buf[7] = 640 & 0xff;
+       buf[8] = 480 >> 8; // height
+       buf[9] = 480 & 0xff;
 
        write(vnc_sock, buf, 10);
        
@@ -179,25 +179,31 @@ struct vnc_rectangle {
 void handle_vnc_fbupdate(int vnc_sock)
 {
        struct vnc_rectangle rect;
-       unsigned char *data, *ptr;
+       unsigned char *data, *ptr, *src, *dst;
        unsigned short num_rect;
-       int ret, data_left, i;
+       int ret, data_left, i, xt, yt;
+       unsigned char smallblock[64 * 64 * 3];
 
        if (read(vnc_sock, &num_rect, 2) != 2)
                error("short read on num_rect\n");
 
-       for (i = 0; i < ntohs(num_rect); ++i) { 
+       for (i = 0; i < ntohs(num_rect); ++i) {
+               int width, height;
+               
                if (read(vnc_sock, &rect, sizeof(struct vnc_rectangle)) != sizeof(struct vnc_rectangle))
                        error("short read on vnc_rectangle\n");
                
-               printf("UPDATE: %ux%u at (%u,%u)\n", ntohs(rect.width), ntohs(rect.height),
-                       ntohs(rect.x), ntohs(rect.y));
-               
                if (ntohl(rect.encoding) != 0)
                        error("unsupported encoding\n");
 
-               ptr = data = xmalloc(ntohs(rect.width) * ntohs(rect.height) * 3);
-               data_left = ntohs(rect.width) * ntohs(rect.height) * 3;
+               width = ntohs(rect.width);
+               height = ntohs(rect.height);
+               
+               printf("UPDATE: %ux%u at (%u,%u)\n", width, height,
+                       ntohs(rect.x), ntohs(rect.y));
+               
+               ptr = data = xmalloc(width * height * 4);
+               data_left = width * height * 4;
 
                while (data_left > 0) {
                        ret = read(vnc_sock, ptr, data_left);
@@ -208,7 +214,34 @@ void handle_vnc_fbupdate(int vnc_sock)
                        data_left -= ret;
                }
 
-//             rdp_send_bitmap_update(ntohs(rect.x), ntohs(rect.y), ntohs(rect.width), ntohs(rect.height), data);
+               // push our 32-bit RGB data into small enough chunks
+               // (64x64) so we are sure we can send them without
+               // everything crashing and stuff :-)
+               for (yt = 0; yt < (height + 63) / 64; ++yt) {
+                       for (xt = 0; xt < (width + 63) / 64; ++xt) {
+                               int x, y;
+                               int bw = width - xt * 64;
+                               int bh = height - yt * 64;
+                               if (bw > 64)
+                                       bw = 64;
+                               if (bh > 64)
+                                       bh = 64;
+                       
+                               dst = smallblock;
+                               for (y = 0; y < bh; ++y) {
+                                       src = data + ((yt * 64 + (bh + 1 - y)) * width + (xt * 64)) * 4;
+                                       for (x = 0; x < bw; ++x) {
+                                               *dst++ = *src++;
+                                               *dst++ = *src++;
+                                               *dst++ = *src++;
+                                               ++src;
+                                       }
+                               }
+
+                               rdp_send_bitmap_update(ntohs(rect.x) + xt * 64, ntohs(rect.y) + yt * 64, bw, bh, smallblock);
+                       }
+               }
+               
                xfree(data);
        }
 }
@@ -273,7 +306,7 @@ int serve_client()
                                break;
                        default:
                                printf("Unknown VNC server message %x\n", buf[0]);
-//                             exit(1);
+                               exit(1);
                        }
                }
        }