Implement TransformFeedbackManager in GPU command buffer.

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 132 matching lines @@
 error::Error GLES2DecoderImpl::HandleBindTransformFeedback(
     uint32_t immediate_data_size,
     const void* cmd_data) {
   if (!unsafe_es3_apis_enabled())
     return error::kUnknownCommand;
   const gles2::cmds::BindTransformFeedback& c =
       *static_cast<const gles2::cmds::BindTransformFeedback*>(cmd_data);
   (void)c;
   GLenum target = static_cast<GLenum>(c.target);
   GLuint transformfeedback = c.transformfeedback;
-  if (!group_->GetTransformFeedbackServiceId(transformfeedback,
-                                             &transformfeedback)) {
-    LOCAL_SET_GL_ERROR(GL_INVALID_OPERATION, "glBindTransformFeedback",
-                       "invalid transformfeedback id");
-    return error::kNoError;
-  }
-  glBindTransformFeedback(target, transformfeedback);
+  DoBindTransformFeedback(target, transformfeedback);
   return error::kNoError;
 }
 
 error::Error GLES2DecoderImpl::HandleBlendColor(uint32_t immediate_data_size,
                                                 const void* cmd_data) {
   const gles2::cmds::BlendColor& c =
       *static_cast<const gles2::cmds::BlendColor*>(cmd_data);
   (void)c;
   GLclampf red = static_cast<GLclampf>(c.red);
   GLclampf green = static_cast<GLclampf>(c.green);
@@ skipping 735 matching lines @@
   GLsizei n = static_cast<GLsizei>(c.n);
   uint32_t data_size;
   if (!SafeMultiplyUint32(n, sizeof(GLuint), &data_size)) {
     return error::kOutOfBounds;
   }
   const GLuint* ids =
       GetImmediateDataAs<const GLuint*>(c, data_size, immediate_data_size);
   if (ids == NULL) {
     return error::kOutOfBounds;
   }
-  for (GLsizei ii = 0; ii < n; ++ii) {
-    GLuint service_id = 0;
-    if (group_->GetTransformFeedbackServiceId(ids[ii], &service_id)) {
-      glDeleteTransformFeedbacks(1, &service_id);
-      group_->RemoveTransformFeedbackId(ids[ii]);
-    }
-  }
+  DeleteTransformFeedbacksHelper(n, ids);
   return error::kNoError;
 }
 
 error::Error GLES2DecoderImpl::HandleDepthFunc(uint32_t immediate_data_size,
                                                const void* cmd_data) {
   const gles2::cmds::DepthFunc& c =
       *static_cast<const gles2::cmds::DepthFunc*>(cmd_data);
   (void)c;
   GLenum func = static_cast<GLenum>(c.func);
   if (!validators_->cmp_function.IsValid(func)) {
@@ skipping 366 matching lines @@
   (void)c;
   GLsizei n = static_cast<GLsizei>(c.n);
   uint32_t data_size;
   if (!SafeMultiplyUint32(n, sizeof(GLuint), &data_size)) {
     return error::kOutOfBounds;
   }
   GLuint* ids = GetImmediateDataAs<GLuint*>(c, data_size, immediate_data_size);
   if (ids == NULL) {
     return error::kOutOfBounds;
   }
-  for (GLsizei ii = 0; ii < n; ++ii) {
-    if (group_->GetTransformFeedbackServiceId(ids[ii], NULL)) {
-      return error::kInvalidArguments;
-    }
-  }
-  std::unique_ptr<GLuint[]> service_ids(new GLuint[n]);
-  glGenTransformFeedbacks(n, service_ids.get());
-  for (GLsizei ii = 0; ii < n; ++ii) {
-    group_->AddTransformFeedbackId(ids[ii], service_ids[ii]);
+  if (!GenTransformFeedbacksHelper(n, ids)) {
+    return error::kInvalidArguments;
   }
   return error::kNoError;
 }
 
 error::Error GLES2DecoderImpl::HandleGetBooleanv(uint32_t immediate_data_size,
                                                  const void* cmd_data) {
   const gles2::cmds::GetBooleanv& c =
       *static_cast<const gles2::cmds::GetBooleanv*>(cmd_data);
   (void)c;
   GLenum pname = static_cast<GLenum>(c.pname);
@@ skipping 979 matching lines @@
   const gles2::cmds::IsTransformFeedback& c =
       *static_cast<const gles2::cmds::IsTransformFeedback*>(cmd_data);
   (void)c;
   GLuint transformfeedback = c.transformfeedback;
   typedef cmds::IsTransformFeedback::Result Result;
   Result* result_dst = GetSharedMemoryAs<Result*>(
       c.result_shm_id, c.result_shm_offset, sizeof(*result_dst));
   if (!result_dst) {
     return error::kOutOfBounds;
   }
-  GLuint service_transformfeedback = 0;
-  *result_dst = group_->GetTransformFeedbackServiceId(
-      transformfeedback, &service_transformfeedback);
+  *result_dst = DoIsTransformFeedback(transformfeedback);
   return error::kNoError;
 }
 
 error::Error GLES2DecoderImpl::HandleLineWidth(uint32_t immediate_data_size,
                                                const void* cmd_data) {
   const gles2::cmds::LineWidth& c =
       *static_cast<const gles2::cmds::LineWidth*>(cmd_data);
   (void)c;
   GLfloat width = static_cast<GLfloat>(c.width);
   if (width <= 0.0f || std::isnan(width)) {
@@ skipping 18 matching lines @@
 }
 
 error::Error GLES2DecoderImpl::HandlePauseTransformFeedback(
     uint32_t immediate_data_size,
     const void* cmd_data) {
   if (!unsafe_es3_apis_enabled())
     return error::kUnknownCommand;
   const gles2::cmds::PauseTransformFeedback& c =
       *static_cast<const gles2::cmds::PauseTransformFeedback*>(cmd_data);
   (void)c;
-  glPauseTransformFeedback();
+  DoPauseTransformFeedback();
   return error::kNoError;
 }
 
 error::Error GLES2DecoderImpl::HandlePolygonOffset(uint32_t immediate_data_size,
                                                    const void* cmd_data) {
   const gles2::cmds::PolygonOffset& c =
       *static_cast<const gles2::cmds::PolygonOffset*>(cmd_data);
   (void)c;
   GLfloat factor = static_cast<GLfloat>(c.factor);
   GLfloat units = static_cast<GLfloat>(c.units);
@@ skipping 60 matching lines @@
 }
 
 error::Error GLES2DecoderImpl::HandleResumeTransformFeedback(
     uint32_t immediate_data_size,
     const void* cmd_data) {
   if (!unsafe_es3_apis_enabled())
     return error::kUnknownCommand;
   const gles2::cmds::ResumeTransformFeedback& c =
       *static_cast<const gles2::cmds::ResumeTransformFeedback*>(cmd_data);
   (void)c;
-  glResumeTransformFeedback();
+  DoResumeTransformFeedback();
   return error::kNoError;
 }
 
 error::Error GLES2DecoderImpl::HandleSampleCoverage(
     uint32_t immediate_data_size,
     const void* cmd_data) {
   const gles2::cmds::SampleCoverage& c =
       *static_cast<const gles2::cmds::SampleCoverage*>(cmd_data);
   (void)c;
   GLclampf value = static_cast<GLclampf>(c.value);
@@ skipping 1852 matching lines @@
 
 error::Error GLES2DecoderImpl::HandleBeginTransformFeedback(
     uint32_t immediate_data_size,
     const void* cmd_data) {
   if (!unsafe_es3_apis_enabled())
     return error::kUnknownCommand;
   const gles2::cmds::BeginTransformFeedback& c =
       *static_cast<const gles2::cmds::BeginTransformFeedback*>(cmd_data);
   (void)c;
   GLenum primitivemode = static_cast<GLenum>(c.primitivemode);
-  glBeginTransformFeedback(primitivemode);
+  DoBeginTransformFeedback(primitivemode);
   return error::kNoError;
 }
 
 error::Error GLES2DecoderImpl::HandleEndTransformFeedback(
     uint32_t immediate_data_size,
     const void* cmd_data) {
   if (!unsafe_es3_apis_enabled())
     return error::kUnknownCommand;
   const gles2::cmds::EndTransformFeedback& c =
       *static_cast<const gles2::cmds::EndTransformFeedback*>(cmd_data);
   (void)c;
-  glEndTransformFeedback();
+  DoEndTransformFeedback();
   return error::kNoError;
 }
 
 error::Error GLES2DecoderImpl::HandleInsertEventMarkerEXT(
     uint32_t immediate_data_size,
     const void* cmd_data) {
   const gles2::cmds::InsertEventMarkerEXT& c =
       *static_cast<const gles2::cmds::InsertEventMarkerEXT*>(cmd_data);
   (void)c;
 
@@ skipping 795 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_