Micro-optimization in HandleVertexAttribPointer

gpu/command_buffer/common/gles2_cmd_utils.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // This file is here so other GLES2 related files can have a common set of
 // includes where appropriate.
 
 #ifndef GPU_COMMAND_BUFFER_COMMON_GLES2_CMD_UTILS_H_
 #define GPU_COMMAND_BUFFER_COMMON_GLES2_CMD_UTILS_H_
 
@@ skipping 138 matching lines @@
       uint32_t internal_format, uint32_t texture_type);
 
   // Returns a bitmask for the channels the given format supports.
   // See ChannelBits.
   static uint32_t GetChannelsForFormat(int format);
 
   // Returns a bitmask for the channels the given attachment type needs.
   static uint32_t GetChannelsNeededForAttachmentType(
       int type, uint32_t max_color_attachments);
 
+  // Return true if value is neither a power of two nor zero.
   static bool IsNPOT(uint32_t value) {
-    return value > 0 && (value & (value - 1)) != 0;
+    return (value & (value - 1)) != 0;
+  }
+
+  // Return true if value is a power of two or zero.
+  static bool IsPOT(uint32_t value) {
+    return (value & (value - 1)) == 0;
   }
 
   static std::string GetStringEnum(uint32_t value);
   static std::string GetStringBool(uint32_t value);
   static std::string GetStringError(uint32_t value);
 
   // Parses a uniform name.
   //   array_pos: the position of the last '[' character in name.
   //   element_index: the index of the array element specifed in the name.
   //   getting_array: True if name refers to array.
@@ skipping 40 matching lines @@
   bool bind_generates_resource_;
   bool fail_if_major_perf_caveat_;
   bool lose_context_when_out_of_memory_;
 };
 
 }  // namespace gles2
 }  // namespace gpu
 
 #endif  // GPU_COMMAND_BUFFER_COMMON_GLES2_CMD_UTILS_H_