Stateful PathRenderer implementation

src/gpu/GrContext.cpp

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "GrContext.h"
@@ skipping 1130 matching lines @@
     // the src color (either the input alpha or in the frag shader) to implement
     // aa. If we have some future driver-mojo path AA that can do the right
     // thing WRT to the blend then we'll need some query on the PR.
     bool useCoverageAA = useAA &&
         !target->getDrawState().getRenderTarget()->isMultisampled() &&
         !target->shouldDisableCoverageAAForBlend();
 
 
     GrPathRendererChain::DrawType type =
         useCoverageAA ? GrPathRendererChain::kColorAntiAlias_DrawType :
-                           GrPathRendererChain::kColor_DrawType;
+                        GrPathRendererChain::kColor_DrawType;
 
     const SkPath* pathPtr = &path;
     SkTLazy<SkPath> tmpPath;
     SkTCopyOnFirstWrite<SkStrokeRec> stroke(origStroke);
 
     // Try a 1st time without stroking the path and without allowing the SW renderer
-    GrPathRenderer* pr = this->getPathRenderer(*pathPtr, *stroke, target, false, type);
+    GrPathRenderer::AutoClearPath acp(this->getPathRenderer(*pathPtr, *stroke, 
+                                      target, false, type,
+                                      pathPtr->getFillType()));
 
-    if (NULL == pr) {
+    if (NULL == acp.renderer()) {
         if (!GrPathRenderer::IsStrokeHairlineOrEquivalent(*stroke, this->getMatrix(), NULL)) {
             // It didn't work the 1st time, so try again with the stroked path
             if (stroke->applyToPath(tmpPath.init(), *pathPtr)) {
                 pathPtr = tmpPath.get();
                 stroke.writable()->setFillStyle();
                 if (pathPtr->isEmpty()) {
                     return;
                 }
             }
         }
 
         // This time, allow SW renderer
-        pr = this->getPathRenderer(*pathPtr, *stroke, target, true, type);
+        acp.set(this->getPathRenderer(*pathPtr, *stroke, target, true, type,
+                                      pathPtr->getFillType()));
     }
 
-    if (NULL == pr) {
+    if (NULL == acp.renderer()) {
 #ifdef SK_DEBUG
         GrPrintf("Unable to find path renderer compatible with path.\n");
 #endif
         return;
     }
 
-    pr->drawPath(*pathPtr, *stroke, target, useCoverageAA);
+    acp->drawPath(*stroke, target, useCoverageAA);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 
 void GrContext::flush(int flagsBitfield) {
     if (NULL == fDrawBuffer) {
         return;
     }
 
     if (kDiscard_FlushBit & flagsBitfield) {
@@ skipping 475 matching lines @@
  * This method finds a path renderer that can draw the specified path on
  * the provided target.
  * Due to its expense, the software path renderer has split out so it can
  * can be individually allowed/disallowed via the "allowSW" boolean.
  */
 GrPathRenderer* GrContext::getPathRenderer(const SkPath& path,
                                            const SkStrokeRec& stroke,
                                            const GrDrawTarget* target,
                                            bool allowSW,
                                            GrPathRendererChain::DrawType drawType,
+                                           SkPath::FillType fillType,
                                            GrPathRendererChain::StencilSupport* stencilSupport) {
 
     if (NULL == fPathRendererChain) {
         fPathRendererChain = SkNEW_ARGS(GrPathRendererChain, (this));
     }
 
     GrPathRenderer* pr = fPathRendererChain->getPathRenderer(path,
                                                              stroke,
                                                              target,
                                                              drawType,
+                                                             fillType,
                                                              stencilSupport);
 
     if (NULL == pr && allowSW) {
         if (NULL == fSoftwarePathRenderer) {
             fSoftwarePathRenderer = SkNEW_ARGS(GrSoftwarePathRenderer, (this));
         }
         pr = fSoftwarePathRenderer;
+        pr->setPath(path, fillType);
     }
 
     return pr;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 bool GrContext::isConfigRenderable(GrPixelConfig config, bool withMSAA) const {
     return fGpu->caps()->isConfigRenderable(config, withMSAA);
 }
 
@@ skipping 83 matching lines @@
     }
     return path;
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 #if GR_CACHE_STATS
 void GrContext::printCacheStats() const {
     fTextureCache->printStats();
 }
 #endif