cmaa: remove dead code in shader.

gpu/command_buffer/service/gles2_cmd_apply_framebuffer_attachment_cmaa_intel.cc

 // Copyright 2016 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_apply_framebuffer_attachment_cmaa_intel.h"
 
 #include "base/logging.h"
 #include "gpu/command_buffer/service/framebuffer_manager.h"
 #include "gpu/command_buffer/service/gles2_cmd_copy_texture_chromium.h"
 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
@@ skipping 790 matching lines @@
 
     uvec4 UnpackEdge(uint value) {
       uvec4 ret;
       ret.x = (value & 0x01u) != 0u ? 1u : 0u;
       ret.y = (value & 0x02u) != 0u ? 1u : 0u;
       ret.z = (value & 0x04u) != 0u ? 1u : 0u;
       ret.w = (value & 0x08u) != 0u ? 1u : 0u;
       return ret;
     }
 
-    uint PackZ(const uvec2 screenPos, const bool invertedZShape) {
-      uint retVal = screenPos.x | (screenPos.y << 15u);
-      if (invertedZShape)
-        retVal |= (1u << 30u);
-      return retVal;
-    }
-
-    void UnpackZ(uint packedZ, out uvec2 screenPos,
-                               out bool invertedZShape)
-    {
-      screenPos.x = packedZ & 0x7FFFu;
-      screenPos.y = (packedZ >> 15u) & 0x7FFFu;
-      invertedZShape = (packedZ >> 30u) == 1u;
-    }
-
-    uint PackZ(const uvec2 screenPos,
-               const bool invertedZShape,
-               const bool horizontal) {
-      uint retVal = screenPos.x | (screenPos.y << 15u);
-      if (invertedZShape)
-        retVal |= (1u << 30u);
-      if (horizontal)
-        retVal |= (1u << 31u);
-      return retVal;
-    }
-
-    void UnpackZ(uint packedZ,
-                 out uvec2 screenPos,
-                 out bool invertedZShape,
-                 out bool horizontal) {
-      screenPos.x = packedZ & 0x7FFFu;
-      screenPos.y = (packedZ >> 15u) & 0x7FFFu;
-      invertedZShape = (packedZ & (1u << 30u)) != 0u;
-      horizontal = (packedZ & (1u << 31u)) != 0u;
-    }
-
     vec4 PackBlurAAInfo(ivec2 pixelPos, uint shapeType) {
       uint packedEdges = uint(
           texelFetch(g_src0TextureFlt, pixelPos, 0).r * 255.5);
 
       float retval = float(packedEdges + (shapeType << 4u));
 
       return vec4(retval / 255.0);
     }
 
     void UnpackBlurAAInfo(float packedValue, out uint edges,
@@ skipping 1012 matching lines @@
     \n#endif\n
     \n#if defined DISPLAY_EDGES\n
       DisplayEdges();
     \n#endif\n
     }
   );
 /* clang-format on */
 
 }  // namespace gles2
 }  // namespace gpu