SparrowOSTS_121127.ISO

SparrowOS/Demo/MultiCore/LayersSpawn.CPP

@@ -0,0 +1,83 @@
+class MPCtrl
+{
+  CTask *win_task;
+  I64 i;
+  Bool app_done,app_done_ack;
+  Bool refresh_start,refresh_done;
+} mp;
+
+
+U0 DrawIt(CTask *task,CDC *dc)
+{
+  I64 i;
+  F64 t0=tNP,t1;
+
+  mp.refresh_done=FALSE;
+  mp.refresh_start=TRUE;
+  mp.i++;
+
+  for (i=0;i<32;i++) {
+    t1=t0+i*2*ã/64;
+    dc->color=(mp.i+i)/10&15;
+    GrEllipse(dc,GR_WIDTH/2,GR_HEIGHT/2,
+      GR_WIDTH/4*(Sin(t1)+1.0),GR_HEIGHT/4*(Sin(t1)+1.0),t1*2.0);
+  }
+  while (!mp.refresh_done)
+    Yield;
+}
+
+U0 MPDrawIt()
+{
+  I64 i;
+  F64 t0=tNP,t1;
+  CDC *dc=DCAlias;
+  dc->win_task=mp.win_task;
+
+  while (!mp.refresh_start && !mp.app_done)
+    Yield;
+  if (mp.app_done)
+    goto mp_done;
+  mp.refresh_start=FALSE;
+  DCFill;
+  for (i=32;i<64;i++) {
+    t1=t0+i*2*ã/64;
+    dc->color=(mp.i+i)/10&15;
+    GrEllipse(dc,GR_WIDTH/2,GR_HEIGHT/2,
+      GR_WIDTH/4*(Sin(t1)+1.0),GR_HEIGHT/4*(Sin(t1)+1.0),t1*2.0);
+  }
+mp_done:
+  DCDel(dc);
+  mp.refresh_done=TRUE;
+}
+
+U0 MPTask(I64)
+{
+  while (!mp.app_done)
+    MPDrawIt;
+  mp.app_done_ack=TRUE;
+  DCFill;
+}
+
+
+U0 LayersSpawn()
+{
+  if (mp_cnt<2) throw(EXCEPT_MULTICORE);
+
+  SettingsPush; //See $LK,"SettingsPush","MN:SettingsPush"$
+  WinMax;
+  DocClear;
+  Fs->draw_it=&DrawIt;
+  WinBorder;
+
+  mp.i=0;
+  mp.app_done=FALSE;
+  mp.win_task=Fs;
+  MPSpawn(&MPTask);
+  GetChar;
+  mp.app_done=TRUE;
+  while (!mp.app_done_ack)
+    Yield;
+  SettingsPop;
+}
+
+LayersSpawn;