Move IOType to GrGpuRef and rename that to GrIORef. Template GrPendingIORef on IOType.

src/gpu/GrGpuResourceRef.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrGpuResourceRef.h"
-#include "GrGpuResource.h"
 
 GrGpuResourceRef::GrGpuResourceRef() {
     fResource = NULL;
     fOwnRef = false;
     fPendingIO = false;
-    fIOType = kNone_IOType;
 }
 
-GrGpuResourceRef::GrGpuResourceRef(GrGpuResource* resource, IOType ioType) {
+GrGpuResourceRef::GrGpuResourceRef(GrGpuResource* resource, GrIORef::IOType ioType) {
     fResource = NULL;
     fOwnRef = false;
     fPendingIO = false;
     this->setResource(resource, ioType);
 }
 
 GrGpuResourceRef::~GrGpuResourceRef() {
     if (fOwnRef) {
         SkASSERT(fResource);
         fResource->unref();
     }
     if (fPendingIO) {
         switch (fIOType) {
-            case kNone_IOType:
-                SkFAIL("Shouldn't get here if fIOType is kNone.");
-                break;
-            case kRead_IOType:
+            case GrIORef::kRead_IOType:
                 fResource->completedRead();
                 break;
-            case kWrite_IOType:
+            case GrIORef::kWrite_IOType:
                 fResource->completedWrite();
                 break;
-            case kRW_IOType:
+            case GrIORef::kRW_IOType:
                 fResource->completedRead();
                 fResource->completedWrite();
                 break;
         }
     }
 }
 
 void GrGpuResourceRef::reset() {
     SkASSERT(!fPendingIO);
     SkASSERT(SkToBool(fResource) == fOwnRef);
     if (fOwnRef) {
         fResource->unref();
         fOwnRef = false;
         fResource = NULL;
-        fIOType = kNone_IOType;
     }
 }
 
-void GrGpuResourceRef::setResource(GrGpuResource* resource, IOType ioType) {
+void GrGpuResourceRef::setResource(GrGpuResource* resource, GrIORef::IOType ioType) {
     SkASSERT(!fPendingIO);
     SkASSERT(SkToBool(fResource) == fOwnRef);
     SkSafeUnref(fResource);
     if (NULL == resource) {
         fResource = NULL;
         fOwnRef = false;
-        fIOType = kNone_IOType;
     } else {
-        SkASSERT(kNone_IOType != ioType);
         fResource = resource;
         fOwnRef = true;
         fIOType = ioType;
     }
 }
 
 void GrGpuResourceRef::markPendingIO() const {
     // This should only be called when the owning GrProgramElement gets its first
     // pendingExecution ref.
     SkASSERT(!fPendingIO);
     SkASSERT(fResource);
     fPendingIO = true;
     switch (fIOType) {
-        case kNone_IOType:
-            SkFAIL("GrGpuResourceRef with neither reads nor writes?");
-            break;
-        case kRead_IOType:
+        case GrIORef::kRead_IOType:
             fResource->addPendingRead();
             break;
-        case kWrite_IOType:
+        case GrIORef::kWrite_IOType:
             fResource->addPendingWrite();
             break;
-        case kRW_IOType:
+        case GrIORef::kRW_IOType:
             fResource->addPendingRead();
             fResource->addPendingWrite();
             break;
     }
 }
 
 void GrGpuResourceRef::pendingIOComplete() const {
     // This should only be called when the owner's pending executions have ocurred but it is still
     // reffed.
     SkASSERT(fOwnRef);
     SkASSERT(fPendingIO);
     switch (fIOType) {
-        case kNone_IOType:
-            SkFAIL("GrGpuResourceRef with neither reads nor writes?");
-            break;
-        case kRead_IOType:
+        case GrIORef::kRead_IOType:
             fResource->completedRead();
             break;
-        case kWrite_IOType:
+        case GrIORef::kWrite_IOType:
             fResource->completedWrite();
             break;
-        case kRW_IOType:
+        case GrIORef::kRW_IOType:
             fResource->completedRead();
             fResource->completedWrite();
             break;
 
     }
     fPendingIO = false;
 }
 
 void GrGpuResourceRef::removeRef() const {
     // This should only be called once, when the owners last ref goes away and
     // there is a pending execution.
     SkASSERT(fOwnRef);
     SkASSERT(fPendingIO);
-    SkASSERT(kNone_IOType != fIOType);
     SkASSERT(fResource);
     fResource->unref();
     fOwnRef = false;
 }