Clean up input handling in VulkanViewer

tools/vulkan/VulkanTestContext.cpp

 
 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrContext.h"
 #include "SkSurface.h"
@@ skipping 61 matching lines @@
     VkResult res = GR_VK_CALL(fBackendContext->fInterface,
                               GetPhysicalDeviceSurfaceSupportKHR(fBackendContext->fPhysicalDevice,
                                                                  fPresentQueueIndex,
                                                                  fSurface,
                                                                  &supported));
     if (VK_SUCCESS != res) {
         this->destroyContext();
         return;
     }
 
-    // get this info from somewhere?
-    if (!this->createSwapchain(1024, 768)) {
+    if (!this->createSwapchain(-1, -1)) {
         this->destroyContext();
         return;
     }
 
     // create presentQueue
     vkGetDeviceQueue(fBackendContext->fDevice, fPresentQueueIndex, 0, &fPresentQueue);
 
 
 }
 
@@ skipping 51 matching lines @@
         return false;
     }
 
     VkExtent2D extent = caps.currentExtent;
     // use the hints
     if (extent.width == (uint32_t)-1) {
         extent.width = width;
         extent.height = height;
     }
 
-    // clamp width; to protect us from broken hints?
+    // clamp width; to protect us from broken hints
     if (extent.width < caps.minImageExtent.width) {
         extent.width = caps.minImageExtent.width;
     } else if (extent.width > caps.maxImageExtent.width) {
         extent.width = caps.maxImageExtent.width;
     }
     // clamp height
     if (extent.height < caps.minImageExtent.height) {
         extent.height = caps.minImageExtent.height;
     } else if (extent.height > caps.maxImageExtent.height) {
         extent.height = caps.maxImageExtent.height;
@@ skipping 430 matching lines @@
         1, // swapchainCount
         &fSwapchain, // pSwapchains
         &backbuffer->fImageIndex, // pImageIndices
         NULL // pResults
     };
 
     GR_VK_CALL_ERRCHECK(fBackendContext->fInterface,
                         QueuePresentKHR(fPresentQueue, &presentInfo));
 
 }