GrVkGpu initialization cleanup.

src/gpu/vk/GrVkGpu.cpp

Index: src/gpu/vk/GrVkGpu.cpp
diff --git a/src/gpu/vk/GrVkGpu.cpp b/src/gpu/vk/GrVkGpu.cpp
index 926e423b6e3016b13fa999b100520e0abcb398bf..f01c2e45e51bd22d27e5992172e788f1a657357c 100644
--- a/src/gpu/vk/GrVkGpu.cpp
+++ b/src/gpu/vk/GrVkGpu.cpp
@@ -40,10 +40,6 @@
 #define VK_CALL_RET(RET, X) GR_VK_CALL_RET(this->vkInterface(), RET, X)
 #define VK_CALL_ERRCHECK(X) GR_VK_CALL_ERRCHECK(this->vkInterface(), X)
 
-////////////////////////////////////////////////////////////////////////////////
-// Stuff used to set up a GrVkGpu secrectly for now.
-
-
 #ifdef ENABLE_VK_LAYERS
 VKAPI_ATTR VkBool32 VKAPI_CALL DebugReportCallback(
     VkDebugReportFlagsEXT       flags,
@@ -65,272 +61,37 @@ VKAPI_ATTR VkBool32 VKAPI_CALL DebugReportCallback(
     }
     return VK_FALSE;
 }
-
-const char* kEnabledLayerNames[] = {
-    // elements of VK_LAYER_LUNARG_standard_validation
-    "VK_LAYER_LUNARG_threading",
-    "VK_LAYER_LUNARG_param_checker",
-    "VK_LAYER_LUNARG_device_limits",
-    "VK_LAYER_LUNARG_object_tracker",
-    "VK_LAYER_LUNARG_image",
-    "VK_LAYER_LUNARG_mem_tracker",
-    "VK_LAYER_LUNARG_draw_state",
-    "VK_LAYER_LUNARG_swapchain",
-    "VK_LAYER_GOOGLE_unique_objects",
-    // not included in standard_validation
-    //"VK_LAYER_LUNARG_api_dump",
-};
-const char* kEnabledInstanceExtensionNames[] = {
-    VK_EXT_DEBUG_REPORT_EXTENSION_NAME
-};
-
-bool verify_instance_layers() {
-    // make sure we can actually use the extensions and layers above
-    uint32_t extensionCount;
-    VkResult res = vkEnumerateInstanceExtensionProperties(nullptr, &extensionCount, nullptr);
-    if (VK_SUCCESS != res) {
-        return false;
-    }
-    VkExtensionProperties* extensions = new VkExtensionProperties[extensionCount];
-    res = vkEnumerateInstanceExtensionProperties(nullptr, &extensionCount, extensions);
-    if (VK_SUCCESS != res) {
-        return false;
-    }
-    int instanceExtensionsFound = 0;
-    for (uint32_t j = 0; j < ARRAYSIZE(kEnabledInstanceExtensionNames); ++j) {
-        for (uint32_t i = 0; i < extensionCount; ++i) {
-            if (!strncmp(extensions[i].extensionName, kEnabledInstanceExtensionNames[j],
-                         strlen(kEnabledInstanceExtensionNames[j]))) {
-                ++instanceExtensionsFound;
-                break;
-            }
-        }
-    }
-    delete[] extensions;
-
-    uint32_t layerCount;
-    res = vkEnumerateInstanceLayerProperties(&layerCount, nullptr);
-    if (VK_SUCCESS != res) {
-        return false;
-    }
-    VkLayerProperties* layers = new VkLayerProperties[layerCount];
-    res = vkEnumerateInstanceLayerProperties(&layerCount, layers);
-    if (VK_SUCCESS != res) {
-        return false;
-    }
-    int instanceLayersFound = 0;
-    for (uint32_t j = 0; j < ARRAYSIZE(kEnabledLayerNames); ++j) {
-        for (uint32_t i = 0; i < layerCount; ++i) {
-            if (!strncmp(layers[i].layerName, kEnabledLayerNames[j],
-                         strlen(kEnabledLayerNames[j]))) {
-                ++instanceLayersFound;
-                break;
-            }
-        }
-    }
-    delete[] layers;
-
-    return instanceExtensionsFound == ARRAYSIZE(kEnabledInstanceExtensionNames) &&
-           instanceLayersFound == ARRAYSIZE(kEnabledLayerNames);
-}
-
-bool verify_device_layers(VkPhysicalDevice physDev) {
-    uint32_t layerCount;
-    VkResult res = vkEnumerateDeviceLayerProperties(physDev, &layerCount, nullptr);
-    if (VK_SUCCESS != res) {
-        return false;
-    }
-    VkLayerProperties* layers = new VkLayerProperties[layerCount];
-    res = vkEnumerateDeviceLayerProperties(physDev, &layerCount, layers);
-    if (VK_SUCCESS != res) {
-        return false;
-    }
-    int deviceLayersFound = 0;
-    for (uint32_t j = 0; j < ARRAYSIZE(kEnabledLayerNames); ++j) {
-        for (uint32_t i = 0; i < layerCount; ++i) {
-            if (!strncmp(layers[i].layerName, kEnabledLayerNames[j],
-                         strlen(kEnabledLayerNames[j]))) {
-                ++deviceLayersFound;
-                break;
-            }
-        }
-    }
-    delete[] layers;
-
-    return deviceLayersFound == ARRAYSIZE(kEnabledLayerNames);
-}
 #endif
 
-// For now the VkGpuCreate is using the same signature as GL. This is mostly for ease of
-// hiding this code from offical skia. In the end the VkGpuCreate will not take a GrBackendContext
-// and mostly likely would take an optional device and queues to use.
-GrGpu* vk_gpu_create(GrBackendContext backendContext, const GrContextOptions& options,
-                     GrContext* context) {
-    // Below is Vulkan setup code that normal would be done by a client, but will do here for now
-    // for testing purposes.
-    VkPhysicalDevice physDev;
-    VkDevice device;
-    VkInstance inst;
-    VkResult err;
-
-    const VkApplicationInfo app_info = {
-        VK_STRUCTURE_TYPE_APPLICATION_INFO, // sType
-        nullptr,                            // pNext
-        "vktest",                           // pApplicationName
-        0,                                  // applicationVersion
-        "vktest",                           // pEngineName
-        0,                                  // engineVerison
-        kGrVkMinimumVersion,                // apiVersion
-    };
-
-    const char** enabledLayerNames = nullptr;
-    int enabledLayerCount = 0;
-    const char** enabledInstanceExtensionNames = nullptr;
-    int enabledInstanceExtensionCount = 0;
-#ifdef ENABLE_VK_LAYERS
-    if (verify_instance_layers()) {
-        enabledLayerNames = kEnabledLayerNames;
-        enabledLayerCount = ARRAYSIZE(kEnabledLayerNames);
-        enabledInstanceExtensionNames = kEnabledInstanceExtensionNames;
-        enabledInstanceExtensionCount = ARRAYSIZE(kEnabledInstanceExtensionNames);
-    }
-#endif
-
-    const VkInstanceCreateInfo instance_create = {
-        VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO, // sType
-        nullptr,                                // pNext
-        0,                                      // flags
-        &app_info,                              // pApplicationInfo
-        enabledLayerCount,                      // enabledLayerNameCount
-        enabledLayerNames,                      // ppEnabledLayerNames
-        enabledInstanceExtensionCount,          // enabledExtensionNameCount
-        enabledInstanceExtensionNames,          // ppEnabledExtensionNames
-    };
-
-    err = vkCreateInstance(&instance_create, nullptr, &inst);
-    if (err < 0) {
-        SkDebugf("vkCreateInstanced failed: %d\n", err);
-        SkFAIL("failing");
-    }
-
-    uint32_t gpuCount;
-    err = vkEnumeratePhysicalDevices(inst, &gpuCount, nullptr);
-    if (err) {
-        SkDebugf("vkEnumeratePhysicalDevices failed: %d\n", err);
-        SkFAIL("failing");
-    }
-    SkASSERT(gpuCount > 0);
-    // Just returning the first physical device instead of getting the whole array.
-    gpuCount = 1;
-    err = vkEnumeratePhysicalDevices(inst, &gpuCount, &physDev);
-    if (err) {
-        SkDebugf("vkEnumeratePhysicalDevices failed: %d\n", err);
-        SkFAIL("failing");
-    }
-
-    // query to get the initial queue props size
-    uint32_t queueCount;
-    vkGetPhysicalDeviceQueueFamilyProperties(physDev, &queueCount, nullptr);
-    SkASSERT(queueCount >= 1);
-
-    SkAutoMalloc queuePropsAlloc(queueCount * sizeof(VkQueueFamilyProperties));
-    // now get the actual queue props
-    VkQueueFamilyProperties* queueProps = (VkQueueFamilyProperties*)queuePropsAlloc.get();
-
-    vkGetPhysicalDeviceQueueFamilyProperties(physDev, &queueCount, queueProps);
-
-    // iterate to find the graphics queue
-    uint32_t graphicsQueueIndex = -1;
-    for (uint32_t i = 0; i < queueCount; i++) {
-        if (queueProps[i].queueFlags & VK_QUEUE_GRAPHICS_BIT) {
-            graphicsQueueIndex = i;
-            break;
+GrGpu* GrVkGpu::Create(GrBackendContext backendContext, const GrContextOptions& options,
+                       GrContext* context) {
+    SkAutoTUnref<const GrVkBackendContext> vkBackendContext(
+                                       reinterpret_cast<const GrVkBackendContext*>(backendContext));
+    if (!vkBackendContext) {
+        vkBackendContext.reset(GrVkBackendContext::Create());
+        if (!vkBackendContext) {
+            return nullptr;
         }
-    }
-    SkASSERT(graphicsQueueIndex < queueCount);
-
-#ifdef ENABLE_VK_LAYERS
-    // unlikely that the device will have different layers than the instance, but good to check
-    if (!verify_device_layers(physDev)) {
-        enabledLayerNames = nullptr;
-        enabledLayerCount = 0;
-    }
-#endif
-
-    float queuePriorities[1] = { 0.0 };
-    const VkDeviceQueueCreateInfo queueInfo = {
-        VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO, // sType
-        nullptr,                                    // pNext
-        0,                                          // VkDeviceQueueCreateFlags
-        0,                                          // queueFamilyIndex
-        1,                                          // queueCount
-        queuePriorities,                            // pQueuePriorities
-    };
-    const VkDeviceCreateInfo deviceInfo = {
-        VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO,  // sType
-        nullptr,                               // pNext
-        0,                                     // VkDeviceCreateFlags
-        1,                                     // queueCreateInfoCount
-        &queueInfo,                            // pQueueCreateInfos
-        enabledLayerCount,                     // layerCount
-        enabledLayerNames,                     // ppEnabledLayerNames
-        0,                                     // extensionCount
-        nullptr,                               // ppEnabledExtensionNames
-        nullptr                                // ppEnabledFeatures
-    };
-
-    err = vkCreateDevice(physDev, &deviceInfo, nullptr, &device);
-    if (err) {
-        SkDebugf("CreateDevice failed: %d\n", err);
-        SkFAIL("failing");
-    }
-
-    VkQueue queue;
-    vkGetDeviceQueue(device, graphicsQueueIndex, 0, &queue);
-
-    const VkCommandPoolCreateInfo cmdPoolInfo = {
-        VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO, // sType
-        nullptr,                                    // pNext
-        0,                                          // CmdPoolCreateFlags
-        graphicsQueueIndex,                         // queueFamilyIndex
-    };
-
-    VkCommandPool cmdPool;
-    err = vkCreateCommandPool(device, &cmdPoolInfo, nullptr, &cmdPool);
-    if (err) {
-        SkDebugf("CreateCommandPool failed: %d\n", err);
-        SkFAIL("failing");
+    } else {
+        vkBackendContext->ref();
     }
 
-    return new GrVkGpu(context, options, physDev, device, queue, cmdPool, inst);
+    return new GrVkGpu(context, options, vkBackendContext);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 
-GrVkGpu::GrVkGpu(GrContext* context, const GrContextOptions& options,
-                 VkPhysicalDevice physDev, VkDevice device, VkQueue queue, VkCommandPool cmdPool,
-                 VkInstance inst)
+GrVkGpu::GrVkGpu(GrContext* context, const GrContextOptions& options, 
+                 const GrVkBackendContext* backendCtx)
     : INHERITED(context)
-    , fDevice(device)
-    , fQueue(queue)
-    , fCmdPool(cmdPool)
-    , fResourceProvider(this)
-    , fVkInstance(inst) {
-    fInterface.reset(GrVkCreateInterface(fVkInstance));
-    fCompiler = shaderc_compiler_initialize();
-
-    fVkCaps.reset(new GrVkCaps(options, fInterface, physDev));
-    fCaps.reset(SkRef(fVkCaps.get()));
-
-    fResourceProvider.init();
-
-    fCurrentCmdBuffer = fResourceProvider.createCommandBuffer();
-    SkASSERT(fCurrentCmdBuffer);
-    fCurrentCmdBuffer->begin(this);
-    VK_CALL(GetPhysicalDeviceMemoryProperties(physDev, &fPhysDevMemProps));
+    , fVkInstance(backendCtx->fInstance)
+    , fDevice(backendCtx->fDevice)
+    , fQueue(backendCtx->fQueue)
+    , fResourceProvider(this) {
+    fBackendContext.reset(backendCtx);
 
 #ifdef ENABLE_VK_LAYERS
-    if (fInterface->hasInstanceExtension(VK_EXT_DEBUG_REPORT_EXTENSION_NAME)) {
+    if (this->vkInterface()->hasInstanceExtension(VK_EXT_DEBUG_REPORT_EXTENSION_NAME)) {
         /* Setup callback creation information */
         VkDebugReportCallbackCreateInfoEXT callbackCreateInfo;
         callbackCreateInfo.sType = VK_STRUCTURE_TYPE_DEBUG_REPORT_CREATE_INFO_EXT;
@@ -344,14 +105,35 @@ GrVkGpu::GrVkGpu(GrContext* context, const GrContextOptions& options,
         callbackCreateInfo.pUserData = nullptr;
 
         /* Register the callback */
-        GR_VK_CALL_ERRCHECK(fInterface, CreateDebugReportCallbackEXT(inst, &callbackCreateInfo,
-                                                                     nullptr, &fCallback));
+        GR_VK_CALL_ERRCHECK(this->vkInterface(), CreateDebugReportCallbackEXT(fVkInstance,
+                            &callbackCreateInfo, nullptr, &fCallback));
     }
 #endif
+
+    fCompiler = shaderc_compiler_initialize();
+
+    fVkCaps.reset(new GrVkCaps(options, this->vkInterface(), backendCtx->fPhysicalDevice));
+    fCaps.reset(SkRef(fVkCaps.get()));
+
+    VK_CALL(GetPhysicalDeviceMemoryProperties(backendCtx->fPhysicalDevice, &fPhysDevMemProps));
+
+    const VkCommandPoolCreateInfo cmdPoolInfo = {
+        VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO, // sType
+        nullptr,                                    // pNext
+        VK_COMMAND_POOL_CREATE_TRANSIENT_BIT,       // CmdPoolCreateFlags
+        backendCtx->fQueueFamilyIndex,              // queueFamilyIndex
+    };
+    GR_VK_CALL_ERRCHECK(this->vkInterface(), CreateCommandPool(fDevice, &cmdPoolInfo, nullptr, 
+                                                               &fCmdPool));
+
+    // must call this after creating the CommandPool
+    fResourceProvider.init();
+    fCurrentCmdBuffer = fResourceProvider.createCommandBuffer();
+    SkASSERT(fCurrentCmdBuffer);
+    fCurrentCmdBuffer->begin(this);
 }
 
 GrVkGpu::~GrVkGpu() {
-    shaderc_compiler_release(fCompiler);
     fCurrentCmdBuffer->end(this);
     fCurrentCmdBuffer->unref(this);
 
@@ -364,13 +146,13 @@ GrVkGpu::~GrVkGpu() {
     // must call this just before we destroy the VkDevice
     fResourceProvider.destroyResources();
 
-#ifdef SK_DEBUG
+    VK_CALL(DestroyCommandPool(fDevice, fCmdPool, nullptr));
+
+    shaderc_compiler_release(fCompiler);
+
+#ifdef ENABLE_VK_LAYERS
     VK_CALL(DestroyDebugReportCallbackEXT(fVkInstance, fCallback, nullptr));
 #endif
-
-    VK_CALL(DestroyCommandPool(fDevice, fCmdPool, nullptr));
-    VK_CALL(DestroyDevice(fDevice, nullptr));
-    VK_CALL(DestroyInstance(fVkInstance, nullptr));
 }
 
 ///////////////////////////////////////////////////////////////////////////////