Reduce GPU mailbox size to 16 bytes

gpu/command_buffer/service/gles2_cmd_decoder_autogen.h

 // Copyright 2014 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 auto-generated from
 // gpu/command_buffer/build_gles2_cmd_buffer.py
 // It's formatted by clang-format using chromium coding style:
 //    clang-format -i -style=chromium filename
 // DO NOT EDIT!
 
@@ skipping 4630 matching lines @@
   return error::kNoError;
 }
 
 error::Error GLES2DecoderImpl::HandleProduceTextureCHROMIUMImmediate(
     uint32_t immediate_data_size,
     const volatile void* cmd_data) {
   const volatile gles2::cmds::ProduceTextureCHROMIUMImmediate& c = *static_cast<
       const volatile gles2::cmds::ProduceTextureCHROMIUMImmediate*>(cmd_data);
   GLenum target = static_cast<GLenum>(c.target);
   uint32_t data_size;
-  if (!GLES2Util::ComputeDataSize(1, sizeof(GLbyte), 64, &data_size)) {
+  if (!GLES2Util::ComputeDataSize(1, sizeof(GLbyte), 16, &data_size)) {
     return error::kOutOfBounds;
   }
   if (data_size > immediate_data_size) {
     return error::kOutOfBounds;
   }
   volatile const GLbyte* mailbox = GetImmediateDataAs<volatile const GLbyte*>(
       c, data_size, immediate_data_size);
   if (!validators_->texture_bind_target.IsValid(target)) {
     LOCAL_SET_GL_ERROR_INVALID_ENUM("glProduceTextureCHROMIUM", target,
                                     "target");
     return error::kNoError;
   }
   if (mailbox == NULL) {
     return error::kOutOfBounds;
   }
   DoProduceTextureCHROMIUM(target, mailbox);
   return error::kNoError;
 }
 
 error::Error GLES2DecoderImpl::HandleProduceTextureDirectCHROMIUMImmediate(
     uint32_t immediate_data_size,
     const volatile void* cmd_data) {
   const volatile gles2::cmds::ProduceTextureDirectCHROMIUMImmediate& c =
       *static_cast<
           const volatile gles2::cmds::ProduceTextureDirectCHROMIUMImmediate*>(
           cmd_data);
   GLuint texture = c.texture;
   GLenum target = static_cast<GLenum>(c.target);
   uint32_t data_size;
-  if (!GLES2Util::ComputeDataSize(1, sizeof(GLbyte), 64, &data_size)) {
+  if (!GLES2Util::ComputeDataSize(1, sizeof(GLbyte), 16, &data_size)) {
     return error::kOutOfBounds;
   }
   if (data_size > immediate_data_size) {
     return error::kOutOfBounds;
   }
   volatile const GLbyte* mailbox = GetImmediateDataAs<volatile const GLbyte*>(
       c, data_size, immediate_data_size);
   if (!validators_->texture_bind_target.IsValid(target)) {
     LOCAL_SET_GL_ERROR_INVALID_ENUM("glProduceTextureDirectCHROMIUM", target,
                                     "target");
     return error::kNoError;
   }
   if (mailbox == NULL) {
     return error::kOutOfBounds;
   }
   DoProduceTextureDirectCHROMIUM(texture, target, mailbox);
   return error::kNoError;
 }
 
 error::Error GLES2DecoderImpl::HandleConsumeTextureCHROMIUMImmediate(
     uint32_t immediate_data_size,
     const volatile void* cmd_data) {
   const volatile gles2::cmds::ConsumeTextureCHROMIUMImmediate& c = *static_cast<
       const volatile gles2::cmds::ConsumeTextureCHROMIUMImmediate*>(cmd_data);
   GLenum target = static_cast<GLenum>(c.target);
   uint32_t data_size;
-  if (!GLES2Util::ComputeDataSize(1, sizeof(GLbyte), 64, &data_size)) {
+  if (!GLES2Util::ComputeDataSize(1, sizeof(GLbyte), 16, &data_size)) {
     return error::kOutOfBounds;
   }
   if (data_size > immediate_data_size) {
     return error::kOutOfBounds;
   }
   volatile const GLbyte* mailbox = GetImmediateDataAs<volatile const GLbyte*>(
       c, data_size, immediate_data_size);
   if (!validators_->texture_bind_target.IsValid(target)) {
     LOCAL_SET_GL_ERROR_INVALID_ENUM("glConsumeTextureCHROMIUM", target,
                                     "target");
     return error::kNoError;
   }
   if (mailbox == NULL) {
     return error::kOutOfBounds;
   }
   DoConsumeTextureCHROMIUM(target, mailbox);
   return error::kNoError;
 }
 
 error::Error GLES2DecoderImpl::HandleCreateAndConsumeTextureINTERNALImmediate(
     uint32_t immediate_data_size,
     const volatile void* cmd_data) {
   const volatile gles2::cmds::CreateAndConsumeTextureINTERNALImmediate& c =
       *static_cast<const volatile gles2::cmds::
                        CreateAndConsumeTextureINTERNALImmediate*>(cmd_data);
   GLenum target = static_cast<GLenum>(c.target);
   GLuint texture = static_cast<GLuint>(c.texture);
   uint32_t data_size;
-  if (!GLES2Util::ComputeDataSize(1, sizeof(GLbyte), 64, &data_size)) {
+  if (!GLES2Util::ComputeDataSize(1, sizeof(GLbyte), 16, &data_size)) {
     return error::kOutOfBounds;
   }
   if (data_size > immediate_data_size) {
     return error::kOutOfBounds;
   }
   volatile const GLbyte* mailbox = GetImmediateDataAs<volatile const GLbyte*>(
       c, data_size, immediate_data_size);
   if (!validators_->texture_bind_target.IsValid(target)) {
     LOCAL_SET_GL_ERROR_INVALID_ENUM("glCreateAndConsumeTextureINTERNAL", target,
                                     "target");
@@ skipping 457 matching lines @@
         state_.enable_flags.cached_sample_alpha_to_one_ext = enabled;
         return true;
       }
       return false;
     default:
       NOTREACHED();
       return false;
   }
 }
 #endif  // GPU_COMMAND_BUFFER_SERVICE_GLES2_CMD_DECODER_AUTOGEN_H_