Add texture swizzle back to command buffer.

gpu/command_buffer/service/gles2_cmd_decoder.cc

 // 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.
 
 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
 
 #include <limits.h>
 #include <stddef.h>
 #include <stdint.h>
 #include <stdio.h>
@@ skipping 10508 matching lines @@
     // than 2^15-1 overflow in the negative range.
     case GL_TEXTURE_BASE_LEVEL:
       if (workarounds().use_shadowed_tex_level_params) {
         if (fparams) {
           fparams[0] = static_cast<GLfloat>(texture->base_level());
         } else {
           iparams[0] = texture->base_level();
         }
         return;
       }
+      break;
     case GL_TEXTURE_MAX_LEVEL:
       if (workarounds().use_shadowed_tex_level_params) {
         if (fparams) {
           fparams[0] = static_cast<GLfloat>(texture->max_level());
         } else {
           iparams[0] = texture->max_level();
         }
         return;
       }
+      break;
+    case GL_TEXTURE_SWIZZLE_R:
+      if (fparams) {
+        fparams[0] = static_cast<GLfloat>(texture->swizzle_r());
+      } else {
+        iparams[0] = texture->swizzle_r();
+      }
+      return;
+    case GL_TEXTURE_SWIZZLE_G:
+      if (fparams) {
+        fparams[0] = static_cast<GLfloat>(texture->swizzle_g());
+      } else {
+        iparams[0] = texture->swizzle_g();
+      }
+      return;
+    case GL_TEXTURE_SWIZZLE_B:
+      if (fparams) {
+        fparams[0] = static_cast<GLfloat>(texture->swizzle_b());
+      } else {
+        iparams[0] = texture->swizzle_b();
+      }
+      return;
+    case GL_TEXTURE_SWIZZLE_A:
+      if (fparams) {
+        fparams[0] = static_cast<GLfloat>(texture->swizzle_a());
+      } else {
+        iparams[0] = texture->swizzle_a();
+      }
+      return;
     default:
       break;
   }
   if (fparams) {
     glGetTexParameterfv(target, pname, fparams);
   } else {
     glGetTexParameteriv(target, pname, iparams);
   }
 }
 
@@ skipping 8317 matching lines @@
 }
 
 // Include the auto-generated part of this file. We split this because it means
 // we can easily edit the non-auto generated parts right here in this file
 // instead of having to edit some template or the code generator.
 #include "base/macros.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu