Add GL indirect drawing APIs

include/gpu/gl/GrGLTypes.h

 
 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrGLTypes_DEFINED
 #define GrGLTypes_DEFINED
@@ skipping 40 matching lines @@
 typedef signed long long int GrGLsizeiptr;
 #else
 typedef signed long int GrGLintptr;
 typedef signed long int GrGLsizeiptr;
 #endif
 #else
 typedef signed long int GrGLintptr;
 typedef signed long int GrGLsizeiptr;
 #endif
 typedef void* GrGLeglImage;
+
+struct GrGLDrawArraysIndirectCommand {
+    GrGLuint fCount;
+    GrGLuint fInstanceCount;
+    GrGLuint fFirst;
+    GrGLuint fBaseInstance;  // Requires EXT_base_instance on ES.
+};
+
+GR_STATIC_ASSERT(16 == sizeof(GrGLDrawArraysIndirectCommand));
+
+struct GrGLDrawElementsIndirectCommand {
+    GrGLuint fCount;
+    GrGLuint fInstanceCount;
+    GrGLuint fFirstIndex;
+    GrGLuint fBaseVertex;
+    GrGLuint fBaseInstance;  // Requires EXT_base_instance on ES.
+};
+
+GR_STATIC_ASSERT(20 == sizeof(GrGLDrawElementsIndirectCommand));
+
+/**
+ * KHR_debug
+ */
+typedef void (GR_GL_FUNCTION_TYPE* GRGLDEBUGPROC)(GrGLenum source,
+                                                  GrGLenum type,
+                                                  GrGLuint id,
+                                                  GrGLenum severity,
+                                                  GrGLsizei length,
+                                                  const GrGLchar* message,
+                                                  const void* userParam);
+
 /**
  * EGL types.
  */
-
 typedef void* GrEGLImage;
 typedef void* GrEGLDisplay;
 typedef void* GrEGLContext;
 typedef void* GrEGLClientBuffer;
 typedef unsigned int GrEGLenum;
 typedef int32_t GrEGLint;
 typedef unsigned int GrEGLBoolean;
 
 ///////////////////////////////////////////////////////////////////////////////
 /**
  * Types for interacting with GL resources created externally to Skia. GrBackendObjects for GL
  * textures are really const GrGLTexture*
  */
 
 struct GrGLTextureInfo {
     GrGLenum fTarget;
     GrGLuint fID;
 };
 
 GR_STATIC_ASSERT(sizeof(GrBackendObject) >= sizeof(const GrGLTextureInfo*));
 
 #endif