From 8b756a7b805ad3f4c9feca3a7e4a93a9ce507db1 Mon Sep 17 00:00:00 2001
From: Geoffrey McRae <geoff@hostfission.com>
Date: Fri, 20 Oct 2017 05:10:44 +1100
Subject: [PATCH] [client] removed obsolete comments and enabled vsync

---
 client/main.c | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/client/main.c b/client/main.c
index a2dc65db..b1b7423e 100644
--- a/client/main.c
+++ b/client/main.c
@@ -238,7 +238,9 @@ int renderThread(void * unused)
     return -1;
   }
 
-  state.renderer = SDL_CreateRenderer(state.window  , -1, 0);
+  state.renderer = SDL_CreateRenderer(state.window, -1,
+      SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
+
   if (!state.renderer)
   {
     DEBUG_ERROR("failed to create window");
@@ -261,7 +263,6 @@ int renderThread(void * unused)
     while(state.running && !ready && !error)
     {    
       // kick the guest and wait for a frame
-      ivshmem_kick_irq(state.shm->guestID, 0);
       switch(ivshmem_wait_irq(0))
       {
         case IVSHMEM_WAIT_RESULT_OK:
@@ -269,6 +270,7 @@ int renderThread(void * unused)
           break;
 
         case IVSHMEM_WAIT_RESULT_TIMEOUT:
+          ivshmem_kick_irq(state.shm->guestID, 0);
           ready = false;
           break;
 
@@ -282,11 +284,7 @@ int renderThread(void * unused)
     {
       DEBUG_ERROR("error during wait for host");
       break;
-    }    
-
-//      continue;
-//    }
-//    startup = false;
+    }
 
     // if the format is invalid or it has changed
     if (format.frameType == FRAME_TYPE_INVALID || !areFormatsSame(format, *state.shm))
@@ -338,11 +336,8 @@ int renderThread(void * unused)
 
     glDisable(GL_COLOR_LOGIC_OP);
     drawFunc(compFunc, texture, texPixels, pixels);
-
     state.shm->clientFrame = format.frames;
-
-    // dont waste CPU, frames don't come that fast!
-    usleep(10);
+    ivshmem_kick_irq(state.shm->guestID, 0);
   }
 
   SDL_DestroyTexture(texture);
@@ -491,7 +486,6 @@ int eventThread(void * arg)
           break;
       }
     }
-
     usleep(1000);
   }