Cleanup legacy NVPR-related definitions

src/gpu/GrContextFactory.cpp

 
 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrContextFactory.h"
 
@@ skipping 50 matching lines @@
 
     SkASSERT(glCtx->isValid());
 
     // Block NVPR from non-NVPR types.
     SkAutoTUnref<const GrGLInterface> glInterface(SkRef(glCtx->gl()));
     if (kNVPR_GLContextType != type) {
         glInterface.reset(GrGLInterfaceRemoveNVPR(glInterface));
         if (!glInterface) {
             return NULL;
         }
+    } else {
+        if (!glInterface->hasExtension("GL_NV_path_rendering")) {
+            return NULL;
+        }
     }
 
     glCtx->makeCurrent();
     GrBackendContext p3dctx = reinterpret_cast<GrBackendContext>(glInterface.get());
     grCtx.reset(GrContext::Create(kOpenGL_GrBackend, p3dctx, fGlobalOptions));
     if (!grCtx.get()) {
         return NULL;
     }
     // Warn if path rendering support is not available for the NVPR type.
     if (kNVPR_GLContextType == type) {
         if (!grCtx->caps()->shaderCaps()->pathRenderingSupport()) {
             GrGLGpu* gpu = static_cast<GrGLGpu*>(grCtx->getGpu());
             const GrGLubyte* verUByte;
             GR_GL_CALL_RET(gpu->glInterface(), verUByte, GetString(GR_GL_VERSION));
             const char* ver = reinterpret_cast<const char*>(verUByte);
             SkDebugf("\nWARNING: nvprmsaa config requested, but driver path rendering support not"
                      " available. Maybe update the driver? Your driver version string: \"%s\"\n", ver);
         }
     }
 
     GPUContext& ctx = fContexts.push_back();
     ctx.fGLContext = glCtx.get();
     ctx.fGLContext->ref();
     ctx.fGrContext = grCtx.get();
     ctx.fGrContext->ref();
     ctx.fType = type;
     return ctx.fGrContext;
 }