GPU implementation of drawRegion()

src/gpu/GrDrawContext.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 "GrBatchTest.h"
 #include "GrColor.h"
 #include "GrDrawContext.h"
 #include "GrDrawContextPriv.h"
 #include "GrDrawingManager.h"
 #include "GrFixedClip.h"
 #include "GrGpuResourcePriv.h"
 #include "GrOvalRenderer.h"
 #include "GrPathRenderer.h"
 #include "GrPipelineBuilder.h"
 #include "GrRenderTarget.h"
 #include "GrRenderTargetPriv.h"
 #include "GrResourceProvider.h"
 #include "SkSurfacePriv.h"
 
 #include "batches/GrBatch.h"
 #include "batches/GrClearBatch.h"
 #include "batches/GrDrawAtlasBatch.h"
 #include "batches/GrDrawVerticesBatch.h"
 #include "batches/GrRectBatchFactory.h"
 #include "batches/GrNinePatch.h" // TODO Factory
+#include "batches/GrRegionBatch.h"
 
 #include "effects/GrRRectEffect.h"
 
 #include "instanced/InstancedRendering.h"
 
 #include "text/GrAtlasTextContext.h"
 #include "text/GrStencilAndCoverTextContext.h"
 
 #include "../private/GrAuditTrail.h"
 
@@ skipping 898 matching lines @@
     path.setIsVolatile(true);
     path.addRRect(inner);
     path.addRRect(outer);
     path.setFillType(SkPath::kEvenOdd_FillType);
 
     this->internalDrawPath(clip, paint, viewMatrix, path, GrStyle::SimpleFill());
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
+static inline bool is_int(float x) {
+    return x == (float) sk_float_round2int(x);
+}
+
+void GrDrawContext::drawRegion(const GrClip& clip,
+                               const GrPaint& paint,
+                               const SkMatrix& viewMatrix,
+                               const SkRegion& region,
+                               const GrStyle& style) {
+    ASSERT_SINGLE_OWNER
+    RETURN_IF_ABANDONED
+    SkDEBUGCODE(this->validate();)
+    GR_AUDIT_TRAIL_AUTO_FRAME(fAuditTrail, "GrDrawContext::drawRegion");
+
+    bool isNonTranslate = SkToBool(viewMatrix.getType() & ~(SkMatrix::kTranslate_Mask));
+    bool complexStyle = !style.isSimpleFill();
+    bool antiAlias = paint.isAntiAlias() && (!is_int(viewMatrix.getTranslateX()) ||
+                                             !is_int(viewMatrix.getTranslateY()));
+    if (isNonTranslate || complexStyle || antiAlias) {
+        SkPath path;
+        region.getBoundaryPath(&path);
+        return this->drawPath(clip, paint, viewMatrix, path, style);
+    }
+
+    SkAutoTUnref<GrDrawBatch> batch(GrRegionBatch::Create(paint.getColor(), viewMatrix, region));
+    GrPipelineBuilder pipelineBuilder(paint, false);
+    this->getDrawTarget()->drawBatch(pipelineBuilder, this, clip, batch);
+}
+
 void GrDrawContext::drawOval(const GrClip& clip,
                              const GrPaint& paint,
                              const SkMatrix& viewMatrix,
                              const SkRect& oval,
                              const GrStyle& style) {
     ASSERT_SINGLE_OWNER
     RETURN_IF_ABANDONED
     SkDEBUGCODE(this->validate();)
     GR_AUDIT_TRAIL_AUTO_FRAME(fAuditTrail, "GrDrawContext::drawOval");
 
@@ skipping 388 matching lines @@
 
 void GrDrawContext::drawBatch(const GrPipelineBuilder& pipelineBuilder, const GrClip& clip,
                               GrDrawBatch* batch) {
     ASSERT_SINGLE_OWNER
     RETURN_IF_ABANDONED
     SkDEBUGCODE(this->validate();)
     GR_AUDIT_TRAIL_AUTO_FRAME(fAuditTrail, "GrDrawContext::drawBatch");
 
     this->getDrawTarget()->drawBatch(pipelineBuilder, this, clip, batch);
 }