Move GrDrawingManager methods to their own .cpp file

src/gpu/GrDrawingManager.cpp

Index: src/gpu/GrDrawingManager.cpp
diff --git a/src/gpu/GrDrawingManager.cpp b/src/gpu/GrDrawingManager.cpp
new file mode 100644
index 0000000000000000000000000000000000000000..682b15511a335f980287df14c37ffe0680cf2ea4
--- /dev/null
+++ b/src/gpu/GrDrawingManager.cpp
@@ -0,0 +1,123 @@
+/*
+ * 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 "GrAtlasTextContext.h"
+#include "GrDrawContext.h"
+#include "GrDrawingManager.h"
+#include "GrDrawTarget.h"
+#include "GrResourceProvider.h"
+#include "GrStencilAndCoverTextContext.h"
+#include "SkTTopoSort.h"
+
+void GrDrawingManager::cleanup() {
+    for (int i = 0; i < fDrawTargets.count(); ++i) {
+        fDrawTargets[i]->unref();
+    }
+
+    fDrawTargets.reset();
+
+    delete fNVPRTextContext;
+    fNVPRTextContext = nullptr;
+
+    for (int i = 0; i < kNumPixelGeometries; ++i) {
+        delete fTextContexts[i][0];
+        fTextContexts[i][0] = nullptr;
+        delete fTextContexts[i][1];
+        fTextContexts[i][1] = nullptr;
+    }
+}
+
+GrDrawingManager::~GrDrawingManager() {
+    this->cleanup();
+}
+
+void GrDrawingManager::abandon() {
+    fAbandoned = true;
+    this->cleanup();
+}
+
+void GrDrawingManager::reset() {
+    for (int i = 0; i < fDrawTargets.count(); ++i) {
+        fDrawTargets[i]->reset();
+    }
+}
+
+void GrDrawingManager::flush() {
+    SkDEBUGCODE(bool result =) 
+                        SkTTopoSort<GrDrawTarget, GrDrawTarget::TopoSortTraits>(&fDrawTargets);
+    SkASSERT(result);
+
+    for (int i = 0; i < fDrawTargets.count(); ++i) {
+        //SkDEBUGCODE(fDrawTargets[i]->dump();)
+        fDrawTargets[i]->flush();
+    }
+
+#ifndef ENABLE_MDB
+    // When MDB is disabled we keep reusing the same drawTarget
+    if (fDrawTargets.count()) {
+        SkASSERT(fDrawTargets.count() == 1);
+        fDrawTargets[0]->resetFlag(GrDrawTarget::kWasOutput_Flag);
+    }
+#endif
+}
+
+GrTextContext* GrDrawingManager::textContext(const SkSurfaceProps& props,
+                                             GrRenderTarget* rt) {
+    if (this->abandoned()) {
+        return nullptr;
+    }
+
+    SkASSERT(props.pixelGeometry() < kNumPixelGeometries);
+    bool useDIF = props.isUseDeviceIndependentFonts();
+
+    if (useDIF && fContext->caps()->shaderCaps()->pathRenderingSupport() &&
+        rt->isStencilBufferMultisampled()) {
+        GrStencilAttachment* sb = fContext->resourceProvider()->attachStencilAttachment(rt);
+        if (sb) {
+            if (!fNVPRTextContext) {
+                fNVPRTextContext = GrStencilAndCoverTextContext::Create(fContext, props);
+            }
+
+            return fNVPRTextContext;
+        }
+    }
+
+    if (!fTextContexts[props.pixelGeometry()][useDIF]) {
+        fTextContexts[props.pixelGeometry()][useDIF] = GrAtlasTextContext::Create(fContext, props);
+    }
+
+    return fTextContexts[props.pixelGeometry()][useDIF];
+}
+
+GrDrawTarget* GrDrawingManager::newDrawTarget(GrRenderTarget* rt) {
+    SkASSERT(fContext);
+
+#ifndef ENABLE_MDB
+    // When MDB is disabled we always just return the single drawTarget
+    if (fDrawTargets.count()) {
+        SkASSERT(fDrawTargets.count() == 1);
+        // DrawingManager gets the creation ref - this ref is for the caller
+        return SkRef(fDrawTargets[0]);
+    }
+#endif
+
+    GrDrawTarget* dt = new GrDrawTarget(fContext->getGpu(), fContext->resourceProvider());
+
+    *fDrawTargets.append() = dt;
+
+    // DrawingManager gets the creation ref - this ref is for the caller 
+    return SkRef(dt);
+}
+
+GrDrawContext* GrDrawingManager::drawContext(GrRenderTarget* rt, 
+                                             const SkSurfaceProps* surfaceProps) {
+    if (this->abandoned()) {
+        return nullptr;
+    }
+
+    return new GrDrawContext(this, rt, surfaceProps);
+}