Various GL testing fixes

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 65 matching lines @@
 
     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);
+            GrGpu* gpu = grCtx->getGpu();
+            const GrGLContext* ctx = gpu->glContextForTesting();
+            if (ctx) {
+                const GrGLubyte* verUByte;
+                GR_GL_CALL_RET(ctx->interface(), 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);
+            } else {
+                SkDebugf("\nWARNING: nvprmsaa config requested, but driver path rendering "
+                         "support not available.\n");
+            }
         }
     }
 
     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;
 }