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#include <time.h>
#include <rfb/rfb.h>
#include <rfb/rfbclient.h>
#ifndef LIBVNCSERVER_HAVE_LIBTHREAD
//#error This test need pthread support (otherwise the client blocks the client)
#endif
MUTEX(frameBufferMutex);
int testEncodings[]={
rfbEncodingRaw,
rfbEncodingRRE,
rfbEncodingCoRRE,
rfbEncodingHextile,
#ifdef LIBVNCSERVER_HAVE_LIBZ
rfbEncodingZlib,
rfbEncodingZlibHex,
rfbEncodingZRLE,
#ifdef LIBVNCSERVER_HAVE_LIBJPEG
rfbEncodingTight,
#endif
#endif
0
};
#define NUMBER_OF_ENCODINGS_TO_TEST (sizeof(testEncodings)/sizeof(int)-1)
/* Here come the variables/functions to handle the test output */
struct { int x1,y1,x2,y2; } lastUpdateRect;
unsigned int statistics[NUMBER_OF_ENCODINGS_TO_TEST];
unsigned int totalFailed;
unsigned int countGotUpdate;
MUTEX(statisticsMutex);
void initStatistics() {
memset(statistics,0,sizeof(int)*NUMBER_OF_ENCODINGS_TO_TEST);
totalFailed=0;
INIT_MUTEX(statisticsMutex);
}
void updateServerStatistics(int x1,int y1,int x2,int y2) {
LOCK(statisticsMutex);
countGotUpdate=0;
lastUpdateRect.x1=x1;
lastUpdateRect.y1=y1;
lastUpdateRect.x2=x2;
lastUpdateRect.y2=y2;
UNLOCK(statisticsMutex);
}
void updateStatistics(int encodingIndex,rfbBool failed) {
LOCK(statisticsMutex);
if(failed) {
statistics[encodingIndex]++;
totalFailed++;
}
countGotUpdate++;
UNLOCK(statisticsMutex);
}
/* Here begin the functions for the client. They will be called in a
* pthread. */
/* maxDelta=0 means they are expected to match exactly;
* maxDelta>0 means that the average difference must be lower than maxDelta */
rfbBool doFramebuffersMatch(rfbScreenInfo* server,rfbClient* client,
int maxDelta)
{
int i,j,k;
unsigned int total=0,diff=0;
if(server->width!=client->width || server->height!=client->height)
return FALSE;
LOCK(frameBufferMutex);
/* TODO: write unit test for colour transformation, use here, too */
for(i=0;i<server->width;i++)
for(j=0;j<server->height;j++)
for(k=0;k<server->serverFormat.bitsPerPixel/8;k++) {
unsigned char s=server->frameBuffer[k+i*4+j*server->paddedWidthInBytes];
unsigned char cl=client->frameBuffer[k+i*4+j*client->width];
if(maxDelta==0 && s!=cl) {
UNLOCK(frameBufferMutex);
return FALSE;
} else {
total++;
diff+=(s>cl?s-cl:cl-s);
}
}
UNLOCK(frameBufferMutex);
if(maxDelta>0 && diff/total>=maxDelta)
return FALSE;
return TRUE;
}
static rfbBool resize(rfbClient* cl) {
if(cl->frameBuffer)
free(cl->frameBuffer);
cl->frameBuffer=(char*)malloc(cl->width*cl->height*cl->format.bitsPerPixel/8);
}
typedef struct clientData {
int encodingIndex;
rfbScreenInfo* server;
} clientData;
static void update(rfbClient* client,int x,int y,int w,int h) {
clientData* cd=(clientData*)client->clientData;
int maxDelta=0;
if(testEncodings[cd->encodingIndex]==rfbEncodingTight)
maxDelta=5;
/* TODO: check if dimensions match with marked rectangle */
/* only check if this was the last update */
if(x+w!=lastUpdateRect.x2 || y+h!=lastUpdateRect.y2)
return;
updateStatistics(cd->encodingIndex,
!doFramebuffersMatch(cd->server,client,maxDelta));
}
static void* clientLoop(void* data) {
rfbClient* client=(rfbClient*)data;
int argc=2;
char* argv[2]={"client",":0"};
if(!rfbInitClient(client,&argc,argv))
return 0;
while(1) {
if(WaitForMessage(client,50)>=0)
if(!HandleRFBServerMessage(client))
break;
}
if(client->frameBuffer)
free(client->frameBuffer);
rfbClientCleanup(client);
return 0;
}
static void startClient(int encodingIndex,rfbScreenInfo* server) {
rfbClient* client=rfbGetClient(8,3,4);
clientData* cd;
pthread_t clientThread;
client->clientData=malloc(sizeof(clientData));
client->MallocFrameBuffer=resize;
client->GotFrameBufferUpdate=update;
cd=(clientData*)client->clientData;
cd->encodingIndex=encodingIndex;
cd->server=server;
pthread_create(&clientThread,NULL,clientLoop,(void*)client);
}
/* Here begin the server functions */
static void idle(rfbScreenInfo* server)
{
int c;
rfbBool goForward;
LOCK(statisticsMutex);
goForward=(countGotUpdate==NUMBER_OF_ENCODINGS_TO_TEST);
UNLOCK(statisticsMutex);
if(!goForward)
return;
LOCK(frameBufferMutex);
for(c=0;c<3;c++) {
int x1=(rand()%server->width),x2=(rand()%server->width),
y1=(rand()%server->height),y2=(rand()%server->height);
int i,j;
if(x1>x2) { i=x1; x1=x2; x2=i; }
if(y1>y2) { i=y1; y1=y2; y2=i; }
for(i=x1;i<=x2;i++)
for(j=y1;j<=y2;j++)
server->frameBuffer[i*4+c+j*server->paddedWidthInBytes]=255*(i-x1+j-y1+1)/(x2-x1+y2-y1+1);
rfbMarkRectAsModified(server,x1,y1,x2+1,y2+1);
}
UNLOCK(frameBufferMutex);
}
//TODO: pthread'ize the client. otherwise server and client block each
//other
int main(int argc,char** argv)
{
int i,j;
time_t t;
/* Initialize server */
rfbScreenInfoPtr server=rfbGetScreen(&argc,argv,400,300,8,3,4);
server->frameBuffer=malloc(400*300*4);
for(j=0;j<400*300*4;j++)
server->frameBuffer[j]=j;
rfbInitServer(server);
rfbProcessEvents(server,50);
/* Initialize clients */
for(i=0;i<NUMBER_OF_ENCODINGS_TO_TEST;i++)
startClient(i,server);
t=time(0);
/* test 20 seconds */
while(time(0)-t<20) {
idle(server);
rfbProcessEvents(server,50);
}
free(server->frameBuffer);
rfbScreenCleanup(server);
printf("Statistics: %d failed\n",totalFailed);
if(totalFailed)
return 1;
return(0);
}
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