initial checkin of SkSL compiler

src/gpu/vk/GrVkGpu.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 "GrVkGpu.h"
 
 #include "GrContextOptions.h"
@@ skipping 18 matching lines @@
 #include "GrVkTextureRenderTarget.h"
 #include "GrVkTransferBuffer.h"
 #include "GrVkVertexBuffer.h"
 
 #include "SkConfig8888.h"
 #include "SkMipMap.h"
 
 #include "vk/GrVkInterface.h"
 #include "vk/GrVkTypes.h"
 
+#if USE_SKSL
+#include "SkSLCompiler.h"
+#endif
+
 #define VK_CALL(X) GR_VK_CALL(this->vkInterface(), X)
 #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)
 
 #ifdef ENABLE_VK_LAYERS
 VKAPI_ATTR VkBool32 VKAPI_CALL DebugReportCallback(
     VkDebugReportFlagsEXT       flags,
     VkDebugReportObjectTypeEXT  objectType,
     uint64_t                    object,
     size_t                      location,
@@ skipping 54 matching lines @@
                                    VK_DEBUG_REPORT_PERFORMANCE_WARNING_BIT_EXT;
         callbackCreateInfo.pfnCallback = &DebugReportCallback;
         callbackCreateInfo.pUserData = nullptr;
 
         // Register the callback
         GR_VK_CALL_ERRCHECK(this->vkInterface(), CreateDebugReportCallbackEXT(
                             backendCtx->fInstance, &callbackCreateInfo, nullptr, &fCallback));
     }
 #endif
 
+#if USE_SKSL
+    fCompiler = new SkSL::Compiler();
+#else
     fCompiler = shaderc_compiler_initialize();
+#endif
 
     fVkCaps.reset(new GrVkCaps(options, this->vkInterface(), backendCtx->fPhysicalDevice,
                                backendCtx->fFeatures, backendCtx->fExtensions));
     fCaps.reset(SkRef(fVkCaps.get()));
 
     VK_CALL(GetPhysicalDeviceMemoryProperties(backendCtx->fPhysicalDevice, &fPhysDevMemProps));
 
     const VkCommandPoolCreateInfo cmdPoolInfo = {
         VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO, // sType
         nullptr,                                    // pNext
@@ skipping 45 matching lines @@
 #endif
 
     // VK_ERROR_DEVICE_LOST is acceptable when tearing down (see 4.2.4 in spec)
     SkASSERT(VK_SUCCESS == res || VK_ERROR_DEVICE_LOST == res);
 
     // must call this just before we destroy the VkDevice
     fResourceProvider.destroyResources();
 
     VK_CALL(DestroyCommandPool(fDevice, fCmdPool, nullptr));
 
+#if USE_SKSL
+    delete fCompiler;
+#else
     shaderc_compiler_release(fCompiler);
+#endif
 
 #ifdef ENABLE_VK_LAYERS
     if (fCallback) {
         VK_CALL(DestroyDebugReportCallbackEXT(fBackendContext->fInstance, fCallback, nullptr));
         fCallback = VK_NULL_HANDLE;
     }
 #endif
 }
 
 ///////////////////////////////////////////////////////////////////////////////
@@ skipping 1298 matching lines @@
                                            GrVkRenderTarget* target,
                                            const SkIRect& bounds) {
     // Currently it is fine for us to always pass in 1 for the clear count even if no attachment
     // uses it. In the current state, we also only use the LOAD_OP_CLEAR for the color attachment
     // which is always at the first attachment.
     fCurrentCmdBuffer->beginRenderPass(this, renderPass, 1, colorClear, *target, bounds, true);
     fCurrentCmdBuffer->executeCommands(this, buffer);
     fCurrentCmdBuffer->endRenderPass(this);
 }