Import new functionality for GL4 backend

src/gpu/gl/GrGLCaps.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef GrGLCaps_DEFINED
 #define GrGLCaps_DEFINED
@@ skipping 206 matching lines @@
 
     /// Is GL_ARB_IMAGING supported
     bool imagingSupport() const { return fImagingSupport; }
 
     /// Is GL_ARB_fragment_coord_conventions supported?
     bool fragCoordConventionsSupport() const { return fFragCoordsConventionSupport; }
 
     /// Is there support for Vertex Array Objects?
     bool vertexArrayObjectSupport() const { return fVertexArrayObjectSupport; }
 
+    /// Is there support for glDraw*Instanced and glVertexAttribDivisor?
+    bool instancedDrawingSupport() const { return fInstancedDrawingSupport; }
+
+    /// Is there support for GL_EXT_direct_state_access?
+    bool directStateAccessSupport() const { return fDirectStateAccessSupport; }
+
+    /// Is there support for GL_KHR_debug?
+    bool debugSupport() const { return fDebugSupport; }
+
     /// Is there support for ES2 compatability?
     bool ES2CompatibilitySupport() const { return fES2CompatibilitySupport; }
 
     /// Can we call glDisable(GL_MULTISAMPLE)?
     bool multisampleDisableSupport() const {
         return fMultisampleDisableSupport;
     }
 
     /// Use indices or vertices in CPU arrays rather than VBOs for dynamic content.
     bool useNonVBOVertexAndIndexDynamicData() const {
@@ skipping 106 matching lines @@
     bool fUnpackFlipYSupport : 1;
     bool fPackRowLengthSupport : 1;
     bool fPackFlipYSupport : 1;
     bool fTextureUsageSupport : 1;
     bool fTexStorageSupport : 1;
     bool fTextureRedSupport : 1;
     bool fImagingSupport  : 1;
     bool fTwoFormatLimit : 1;
     bool fFragCoordsConventionSupport : 1;
     bool fVertexArrayObjectSupport : 1;
+    bool fInstancedDrawingSupport : 1;
+    bool fDirectStateAccessSupport : 1;
+    bool fDebugSupport : 1;
     bool fES2CompatibilitySupport : 1;
     bool fMultisampleDisableSupport : 1;
     bool fUseNonVBOVertexAndIndexDynamicData : 1;
     bool fIsCoreProfile : 1;
     bool fFullClearIsFree : 1;
 
     struct ReadPixelsSupportedFormat {
         GrGLenum fFormat;
         GrGLenum fType;
         GrGLenum fFboFormat;
@@ skipping 35 matching lines @@
 
     /**
      * Some helper functions for encapsulating various extensions to read FB Buffer on openglES
      *
      * TODO(joshualitt) On desktop opengl 4.2+ we can achieve something similar to this effect
      */
     bool fbFetchSupport() const { return fFBFetchSupport; }
 
     bool fbFetchNeedsCustomOutput() const { return fFBFetchNeedsCustomOutput; }
 
+    bool bindlessTextureSupport() const { return fBindlessTextureSupport; }
+
     const char* fbFetchColorName() const { return fFBFetchColorName; }
 
     const char* fbFetchExtensionString() const { return fFBFetchExtensionString; }
 
     bool dropsTileOnZeroDivide() const { return fDropsTileOnZeroDivide; }
 
     AdvBlendEqInteraction advBlendEqInteraction() const { return fAdvBlendEqInteraction; }
 
     bool mustEnableAdvBlendEqs() const {
         return fAdvBlendEqInteraction >= kGeneralEnable_AdvBlendEqInteraction;
@@ skipping 16 matching lines @@
 
 private:
     // Must be called after fGeometryShaderSupport is initialized.
     void initShaderPrecisionTable(const GrGLContextInfo&, const GrGLInterface*);
 
     GrGLSLGeneration fGLSLGeneration;
     
     bool fDropsTileOnZeroDivide : 1;
     bool fFBFetchSupport : 1;
     bool fFBFetchNeedsCustomOutput : 1;
+    bool fBindlessTextureSupport : 1;
 
     const char* fFBFetchColorName;
     const char* fFBFetchExtensionString;
 
     AdvBlendEqInteraction fAdvBlendEqInteraction;
 
     friend class GrGLCaps;  // For initialization.
 
     typedef GrShaderCaps INHERITED;
 };
 
 
 #endif