Make it possible to draw multiple paths at once to a draw target

src/gpu/GrDrawTarget.cpp

 
 /*
  * Copyright 2010 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 
@@ skipping 530 matching lines @@
     viewM.mapRect(&devBounds);
 
     GrDeviceCoordTexture dstCopy;
     if (!this->setupDstReadIfNecessary(&dstCopy, &devBounds)) {
         return;
     }
 
     this->onDrawPath(path, fill, dstCopy.texture() ? &dstCopy : NULL);
 }
 
+void GrDrawTarget::drawPaths(size_t pathCount, const GrPath** paths,
+                             const SkMatrix* transforms,
+                             SkPath::FillType fill, SkStrokeRec::Style stroke) {
+    SkASSERT(pathCount > 0);
+    SkASSERT(NULL != paths);
+    SkASSERT(NULL != paths[0]);
+    SkASSERT(this->caps()->pathRenderingSupport());
+    SkASSERT(!SkPath::IsInverseFillType(fill));
+
+    const GrDrawState* drawState = &getDrawState();
+
+    SkRect devBounds;
+    for (size_t i = 0; i < pathCount; ++i) {
+        SkRect mappedPathBounds;
+        transforms[i].mapRect(&mappedPathBounds, paths[i]->getBounds());

[Kimmo Kinnunen, 2014/03/24 13:58:50]

In practical terms, it would complicate and slow things here.

+        devBounds.join(mappedPathBounds);
+    }
+
+    SkMatrix viewM = drawState->getViewMatrix();
+    viewM.mapRect(&devBounds);
+
+    GrDeviceCoordTexture dstCopy;
+    if (!this->setupDstReadIfNecessary(&dstCopy, &devBounds)) {
+        return;
+    }
+
+    this->onDrawPaths(pathCount, paths, transforms, fill, stroke,
+                      dstCopy.texture() ? &dstCopy : NULL);
+}
+
 void GrDrawTarget::instantGpuTraceEvent(const char* marker) {
     if (this->caps()->gpuTracingSupport()) {
         this->onInstantGpuTraceEvent(marker);
     }
 }
 
 void GrDrawTarget::pushGpuTraceEvent(const char* marker) {
     SkASSERT(fPushGpuTraceCount >= 0);
     if (this->caps()->gpuTracingSupport()) {
         this->onPushGpuTraceEvent(marker);
@@ skipping 511 matching lines @@
     for (size_t i = 0; i < SK_ARRAY_COUNT(kConfigNames); ++i)  {
         if (i != kUnknown_GrPixelConfig) {
             r.appendf("%s is renderable: %s, with MSAA: %s\n",
                      kConfigNames[i],
                      gNY[fConfigRenderSupport[i][0]],
                      gNY[fConfigRenderSupport[i][1]]);
         }
     }
     return r;
 }