Smallest possible desktop application that uses Skia to render stuff.

src/views/unix/SkOSWindow_Unix.cpp

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include <X11/Xlib.h>
 #include <X11/Xatom.h>
 #include <X11/XKBlib.h>
@@ skipping 356 matching lines @@
     image.depth = 24;
     image.bytes_per_line = bitmap.rowBytes() - bitmap.width() * 4;
     image.bits_per_pixel = bitsPerPixel;
     return XInitImage(&image);
 }
 
 void SkOSWindow::doPaint() {
     if (NULL == fUnixWindow.fDisplay) {
         return;
     }
+    // If we are drawing with GL, we don't need XPutImage.
+    if (NULL != fUnixWindow.fGLContext) {
+        return;
+    }
     // Draw the bitmap to the screen.
     const SkBitmap& bitmap = getBitmap();
     int width = bitmap.width();
     int height = bitmap.height();
 
     XImage image;
     if (!convertBitmapToXImage(image, bitmap)) {
         return;
     }
 
@@ skipping 10 matching lines @@
 
 void SkEvent::SignalNonEmptyQueue() {
     // nothing to do, since we spin on our event-queue, polling for XPending
 }
 
 void SkEvent::SignalQueueTimer(SkMSec delay) {
     // just need to record the delay time. We handle waking up for it in
     // MyXNextEventWithDelay()
     gTimerDelay = delay;
 }