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[client] code cleanup

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This commit is contained in:
Geoffrey McRae 2017-12-03 22:08:43 +11:00
parent a54f3000f5
commit 7638925387
1 changed files with 36 additions and 31 deletions
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67
client/main.c
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@ -149,6 +149,37 @@ inline bool areFormatsSame(const struct KVMGFXHeader s1, const struct KVMGFXHead
(s1.height == s2.height );
}
inline bool waitGuest()
{
bool ready = false;
bool error = false;
while(state.running && !ready && !error)
{
switch(ivshmem_wait_irq(0))
{
case IVSHMEM_WAIT_RESULT_OK:
ready = true;
break;
case IVSHMEM_WAIT_RESULT_TIMEOUT:
ivshmem_kick_irq(state.shm->guestID, 0);
break;
case IVSHMEM_WAIT_RESULT_ERROR:
error = true;
break;
}
}
if (error)
{
DEBUG_ERROR("error during wait for host");
return false;
}
return true;
}
int renderThread(void * unused)
{
struct KVMGFXHeader header;
@ -170,13 +201,15 @@ int renderThread(void * unused)
memset(&header, 0, sizeof(struct KVMGFXHeader));
// kick the guest early for our intial frame
// the guestID may be invalid, it doesn't matter
// initial guest kick to get things started
ivshmem_kick_irq(state.shm->guestID, 0);
while(state.running)
{
// copy the header for our use
// wait for the guest to signal ready and copy the header
if (!waitGuest())
break;
memcpy(&newHeader, state.shm, sizeof(struct KVMGFXHeader));
ivshmem_kick_irq(newHeader.guestID, 0);
@ -471,34 +504,6 @@ int renderThread(void * unused)
SDL_RenderPresent(state.renderer);
state.started = true;
bool ready = false;
bool error = false;
while(state.running && !ready && !error)
{
// kick the guest and wait for a frame
switch(ivshmem_wait_irq(0))
{
case IVSHMEM_WAIT_RESULT_OK:
ready = true;
break;
case IVSHMEM_WAIT_RESULT_TIMEOUT:
ivshmem_kick_irq(newHeader.guestID, 0);
ready = false;
break;
case IVSHMEM_WAIT_RESULT_ERROR:
error = true;
break;
}
}
if (error)
{
DEBUG_ERROR("error during wait for host");
break;
}
}
state.running = false;