Start on replacing path+style with shape in patherenderer

src/gpu/GrSoftwarePathRenderer.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrSoftwarePathRenderer.h"
 #include "GrAuditTrail.h"
 #include "GrClip.h"
 #include "GrSWMaskHelper.h"
 #include "GrTextureProvider.h"
 #include "batches/GrRectBatchFactory.h"
 
 ////////////////////////////////////////////////////////////////////////////////
 bool GrSoftwarePathRenderer::onCanDrawPath(const CanDrawPathArgs& args) const {
     return SkToBool(fTexProvider);
 }
 
 namespace {
 
 ////////////////////////////////////////////////////////////////////////////////
 // gets device coord bounds of path (not considering the fill) and clip. The
 // path bounds will be a subset of the clip bounds. returns false if
 // path bounds would be empty.
-bool get_path_and_clip_bounds(int width, int height,
-                              const GrClip& clip,
-                              const SkPath& path,
-                              const SkMatrix& matrix,
-                              SkIRect* devPathBounds,
-                              SkIRect* devClipBounds) {
+bool get_shape_and_clip_bounds(int width, int height,
+                               const GrClip& clip,
+                               const GrShape& shape,
+                               const SkMatrix& matrix,
+                               SkIRect* devShapeBounds,
+                               SkIRect* devClipBounds) {
     // compute bounds as intersection of rt size, clip, and path
     clip.getConservativeBounds(width, height, devClipBounds);
 
     if (devClipBounds->isEmpty()) {
-        *devPathBounds = SkIRect::MakeWH(width, height);
+        *devShapeBounds = SkIRect::MakeWH(width, height);
         return false;
     }
-
-    if (!path.getBounds().isEmpty()) {
-        SkRect pathSBounds;
-        matrix.mapRect(&pathSBounds, path.getBounds());
-        SkIRect pathIBounds;
-        pathSBounds.roundOut(&pathIBounds);
-        *devPathBounds = *devClipBounds;
-        if (!devPathBounds->intersect(pathIBounds)) {
+    SkRect shapeBounds;
+    shape.styledBounds(&shapeBounds);
+    if (!shapeBounds.isEmpty()) {
+        SkRect shapeSBounds;
+        matrix.mapRect(&shapeSBounds, shapeBounds);
+        SkIRect shapeIBounds;
+        shapeSBounds.roundOut(&shapeIBounds);
+        *devShapeBounds = *devClipBounds;
+        if (!devShapeBounds->intersect(shapeIBounds)) {
             // set the correct path bounds, as this would be used later.
-            *devPathBounds = pathIBounds;
+            *devShapeBounds = shapeIBounds;
             return false;
         }
     } else {
-        *devPathBounds = SkIRect::EmptyIRect();
+        *devShapeBounds = SkIRect::EmptyIRect();
         return false;
     }
     return true;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 
 }
 
 void GrSoftwarePathRenderer::DrawNonAARect(GrDrawContext* drawContext,
@@ skipping 55 matching lines @@
 
 ////////////////////////////////////////////////////////////////////////////////
 // return true on success; false on failure
 bool GrSoftwarePathRenderer::onDrawPath(const DrawPathArgs& args) {
     GR_AUDIT_TRAIL_AUTO_FRAME(args.fDrawContext->auditTrail(),
                               "GrSoftwarePathRenderer::onDrawPath");
     if (!fTexProvider) {
         return false;
     }
 
-    SkIRect devPathBounds, devClipBounds;
-    if (!get_path_and_clip_bounds(args.fDrawContext->width(), args.fDrawContext->height(),
-                                  *args.fClip, *args.fPath,
-                                  *args.fViewMatrix, &devPathBounds, &devClipBounds)) {
-        if (args.fPath->isInverseFillType()) {
+    // We really need to know if the shape will be inverse filled or not;
+    bool inverseFilled = false;
+    SkTLazy<GrShape> tmpShape;
+    const GrShape* shape = args.fShape;
+    if (shape->mayBeInverseFilledAfterStyling()) {
+        // The "may" comes about because of arbitrary path effects. The rubber meets the road here.
+        if (shape->style().hasNonDashPathEffect()) {
+            tmpShape.init(shape->applyStyle(GrStyle::Apply::kPathEffectOnly, 1.f));
+            shape = tmpShape.get();
+            inverseFilled = shape->inverseFilled();
+        } else {
+            inverseFilled = true;
+        }
+    }
+
+    SkIRect devShapeBounds, devClipBounds;
+    if (!get_shape_and_clip_bounds(args.fDrawContext->width(), args.fDrawContext->height(),
+                                   *args.fClip, *args.fShape,
+                                   *args.fViewMatrix, &devShapeBounds, &devClipBounds)) {
+        if (inverseFilled) {
             DrawAroundInvPath(args.fDrawContext, args.fPaint, args.fUserStencilSettings,
                               *args.fClip, args.fColor,
-                              *args.fViewMatrix, devClipBounds, devPathBounds);
+                              *args.fViewMatrix, devClipBounds, devShapeBounds);
+
         }
         return true;
     }
 
     SkAutoTUnref<GrTexture> texture(
-            GrSWMaskHelper::DrawPathMaskToTexture(fTexProvider, *args.fPath, *args.fStyle,
-                                                  devPathBounds,
-                                                  args.fAntiAlias, args.fViewMatrix));
+            GrSWMaskHelper::DrawShapeMaskToTexture(fTexProvider, *args.fShape, devShapeBounds,
+                                                   args.fAntiAlias, args.fViewMatrix));
     if (nullptr == texture) {
         return false;
     }
 
-    GrSWMaskHelper::DrawToTargetWithPathMask(texture, args.fDrawContext, args.fPaint,
-                                             args.fUserStencilSettings,
-                                             *args.fClip, args.fColor, *args.fViewMatrix,
-                                             devPathBounds);
+    GrSWMaskHelper::DrawToTargetWithShapeMask(texture, args.fDrawContext, args.fPaint,
+                                              args.fUserStencilSettings,
+                                              *args.fClip, args.fColor, *args.fViewMatrix,
+                                              devShapeBounds);
 
-    if (args.fPath->isInverseFillType()) {
+    if (inverseFilled) {
         DrawAroundInvPath(args.fDrawContext, args.fPaint, args.fUserStencilSettings,
                           *args.fClip, args.fColor,
-                          *args.fViewMatrix, devClipBounds, devPathBounds);
+                          *args.fViewMatrix, devClipBounds, devShapeBounds);
     }
 
     return true;
 }