Add hooks for GL_EXT_debug_marker in gpu

src/gpu/gl/GrGpuGL.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 "GrGpuGL.h"
 #include "GrGLStencilBuffer.h"
@@ skipping 99 matching lines @@
 
 ///////////////////////////////////////////////////////////////////////////////
 
 static bool gPrintStartupSpew;
 
 GrGpuGL::GrGpuGL(const GrGLContext& ctx, GrContext* context)
     : GrGpu(context)
     , fGLContext(ctx) {
 
     SkASSERT(ctx.isInitialized());
-
     fCaps.reset(SkRef(ctx.caps()));
 
     fHWBoundTextures.reset(this->glCaps().maxFragmentTextureUnits());
     fHWTexGenSettings.reset(this->glCaps().maxFixedFunctionTextureCoords());
 
     GrGLClearErr(fGLContext.interface());
-
     if (gPrintStartupSpew) {
         const GrGLubyte* vendor;
         const GrGLubyte* renderer;
         const GrGLubyte* version;
         GL_CALL_RET(vendor, GetString(GR_GL_VENDOR));
         GL_CALL_RET(renderer, GetString(GR_GL_RENDERER));
         GL_CALL_RET(version, GetString(GR_GL_VERSION));
         GrPrintf("------------------------- create GrGpuGL %p --------------\n",
                  this);
         GrPrintf("------ VENDOR %s\n", vendor);
@@ skipping 2518 matching lines @@
             if(!SkIRect::IntersectsNoEmptyCheck(dstRect, srcRect)) {
                 return true;
             }
         } else {
             return true;
         }
     }
     return INHERITED::onCanCopySurface(dst, src, srcRect, dstPoint);
 }
 
+void GrGpuGL::onInstantGpuTraceEvent(const char* marker) {
+    if (this->caps()->gpuTracingSupport()) {
+        // GL_CALL(InsertEventMarker(0, marker));
+    }
+}
+
+void GrGpuGL::onPushGpuTraceEvent(const char* marker) {
+    if (this->caps()->gpuTracingSupport()) {
+        // GL_CALL(PushGroupMarker(0, marker));
+    }
+}
+
+void GrGpuGL::onPopGpuTraceEvent() {
+    if (this->caps()->gpuTracingSupport()) {
+        // GL_CALL(PopGroupMarker());
+    }
+}
 
 ///////////////////////////////////////////////////////////////////////////////
 
 GrGLAttribArrayState* GrGpuGL::HWGeometryState::bindArrayAndBuffersToDraw(
                                                 GrGpuGL* gpu,
                                                 const GrGLVertexBuffer* vbuffer,
                                                 const GrGLIndexBuffer* ibuffer) {
     SkASSERT(NULL != vbuffer);
     GrGLAttribArrayState* attribState;
 
@@ skipping 14 matching lines @@
             this->setVertexArrayID(gpu, 0);
         }
         int attrCount = gpu->glCaps().maxVertexAttributes();
         if (fDefaultVertexArrayAttribState.count() != attrCount) {
             fDefaultVertexArrayAttribState.resize(attrCount);
         }
         attribState = &fDefaultVertexArrayAttribState;
     }
     return attribState;
 }