Implement TransformFeedbackManager in GPU command buffer.

gpu/command_buffer/service/gles2_cmd_decoder_unittest.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_unittest.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/command_line.h"
@@ skipping 1406 matching lines @@
 
 TEST_P(GLES2DecoderTest, LoseContextCHROMIUMInvalidArgs1_0) {
   EXPECT_CALL(*mock_decoder_, MarkContextLost(_))
       .Times(0);
   cmds::LoseContextCHROMIUM cmd;
   cmd.Init(GL_GUILTY_CONTEXT_RESET_ARB, GL_NONE);
   EXPECT_EQ(error::kNoError, ExecuteCmd(cmd));
   EXPECT_EQ(GL_INVALID_ENUM, GetGLError());
 }
 
+TEST_P(GLES3DecoderTest, TransformFeedbackStates) {
+  cmds::BeginTransformFeedback begin_cmd;
+  begin_cmd.Init(GL_POINTS);
+  cmds::EndTransformFeedback end_cmd;
+  end_cmd.Init();
+  cmds::PauseTransformFeedback pause_cmd;
+  pause_cmd.Init();
+  cmds::ResumeTransformFeedback resume_cmd;
+  resume_cmd.Init();
+
+  // Before Begin: Pause, Resume, and End is invalid.
+  EXPECT_EQ(error::kNoError, ExecuteCmd(end_cmd));
+  EXPECT_EQ(GL_INVALID_OPERATION, GetGLError());
+
+  EXPECT_EQ(error::kNoError, ExecuteCmd(pause_cmd));
+  EXPECT_EQ(GL_INVALID_OPERATION, GetGLError());
+
+  EXPECT_EQ(error::kNoError, ExecuteCmd(resume_cmd));
+  EXPECT_EQ(GL_INVALID_OPERATION, GetGLError());
+
+  // Begin
+  EXPECT_CALL(*gl_, BeginTransformFeedback(GL_POINTS))
+      .Times(1)
+      .RetiresOnSaturation();
+  EXPECT_EQ(error::kNoError, ExecuteCmd(begin_cmd));
+  EXPECT_EQ(GL_NO_ERROR, GetGLError());
+
+  // Begin again is invalid.
+  EXPECT_EQ(error::kNoError, ExecuteCmd(begin_cmd));
+  EXPECT_EQ(GL_INVALID_OPERATION, GetGLError());
+
+  // Before Pause: Resume is invalid.
+  EXPECT_EQ(error::kNoError, ExecuteCmd(resume_cmd));
+  EXPECT_EQ(GL_INVALID_OPERATION, GetGLError());
+
+  // Pause
+  EXPECT_CALL(*gl_, PauseTransformFeedback())
+      .Times(1)
+      .RetiresOnSaturation();
+  EXPECT_EQ(error::kNoError, ExecuteCmd(pause_cmd));
+  EXPECT_EQ(GL_NO_ERROR, GetGLError());
+
+  // Pause again is invalid.
+  EXPECT_EQ(error::kNoError, ExecuteCmd(pause_cmd));
+  EXPECT_EQ(GL_INVALID_OPERATION, GetGLError());
+
+  // Resume
+  EXPECT_CALL(*gl_, ResumeTransformFeedback())
+      .Times(1)
+      .RetiresOnSaturation();
+  EXPECT_EQ(error::kNoError, ExecuteCmd(resume_cmd));
+  EXPECT_EQ(GL_NO_ERROR, GetGLError());
+
+  // End
+  EXPECT_CALL(*gl_, EndTransformFeedback())
+      .Times(1)
+      .RetiresOnSaturation();
+  EXPECT_EQ(error::kNoError, ExecuteCmd(end_cmd));
+  EXPECT_EQ(GL_NO_ERROR, GetGLError());
+}
+
 class GLES2DecoderDoCommandsTest : public GLES2DecoderTest {
  public:
   GLES2DecoderDoCommandsTest() {
     for (int i = 0; i < 3; i++) {
       cmds_[i].Init(GL_BLEND);
     }
     entries_per_cmd_ = ComputeNumEntries(cmds_[0].ComputeSize());
   }
 
   void SetExpectationsForNCommands(int num_commands) {
     for (int i = 0; i < num_commands; i++)
       SetupExpectationsForEnableDisable(GL_BLEND, true);
   }
 
  protected:
   Enable cmds_[3];
   int entries_per_cmd_;
 };
 
+TEST_P(GLES3DecoderTest, BindTransformFeedbackValidArgs) {
+  EXPECT_CALL(*gl_, BindTransformFeedback(GL_TRANSFORM_FEEDBACK,
+                                          kServiceTransformFeedbackId));
+  SpecializedSetup<cmds::BindTransformFeedback, 0>(true);
+  cmds::BindTransformFeedback cmd;
+  cmd.Init(GL_TRANSFORM_FEEDBACK, client_transformfeedback_id_);
+  EXPECT_EQ(error::kNoError, ExecuteCmd(cmd));
+  EXPECT_EQ(GL_NO_ERROR, GetGLError());
+}
+
+TEST_P(GLES3DecoderTest, GenDeleteTransformFeedbacksImmediateValidArgs) {
+  EXPECT_CALL(*gl_, GenTransformFeedbacks(1, _))
+      .WillOnce(SetArgPointee<1>(kNewServiceId));
+  cmds::GenTransformFeedbacksImmediate* gen_cmd =
+      GetImmediateAs<cmds::GenTransformFeedbacksImmediate>();
+  GLuint temp = kNewClientId;
+  SpecializedSetup<cmds::GenTransformFeedbacksImmediate, 0>(true);
+  gen_cmd->Init(1, &temp);
+  EXPECT_EQ(error::kNoError, ExecuteImmediateCmd(*gen_cmd, sizeof(temp)));
+  EXPECT_EQ(GL_NO_ERROR, GetGLError());
+  EXPECT_TRUE(GetTransformFeedback(kNewClientId) != nullptr);
+
+  EXPECT_CALL(*gl_,
+              DeleteTransformFeedbacks(1, Pointee(kNewServiceId)))
+      .Times(1);
+  cmds::DeleteTransformFeedbacksImmediate& delete_cmd =
+      *GetImmediateAs<cmds::DeleteTransformFeedbacksImmediate>();
+  SpecializedSetup<cmds::DeleteTransformFeedbacksImmediate, 0>(true);
+  delete_cmd.Init(1, &temp);
+  EXPECT_EQ(error::kNoError, ExecuteImmediateCmd(delete_cmd, sizeof(&temp)));
+  EXPECT_EQ(GL_NO_ERROR, GetGLError());
+  EXPECT_TRUE(GetTransformFeedback(kNewClientId) == nullptr);
+}
+
+TEST_P(GLES3DecoderTest, DeleteTransformFeedbacksImmediateInvalidArgs) {
+  cmds::DeleteTransformFeedbacksImmediate& cmd =
+      *GetImmediateAs<cmds::DeleteTransformFeedbacksImmediate>();
+  SpecializedSetup<cmds::DeleteTransformFeedbacksImmediate, 0>(false);
+  GLuint temp = kInvalidClientId;
+  cmd.Init(1, &temp);
+  EXPECT_EQ(error::kNoError, ExecuteImmediateCmd(cmd, sizeof(temp)));
+  EXPECT_EQ(GL_NO_ERROR, GetGLError());
+}
+
+TEST_P(GLES3DecoderTest, GenTransformFeedbacksImmediateInvalidArgs) {
+  EXPECT_CALL(*gl_, GenTransformFeedbacks(_, _)).Times(0);
+  cmds::GenTransformFeedbacksImmediate* cmd =
+      GetImmediateAs<cmds::GenTransformFeedbacksImmediate>();
+  SpecializedSetup<cmds::GenTransformFeedbacksImmediate, 0>(false);
+  cmd->Init(1, &client_transformfeedback_id_);
+  EXPECT_EQ(error::kInvalidArguments,
+            ExecuteImmediateCmd(*cmd, sizeof(&client_transformfeedback_id_)));
+}
+
 // Test that processing with 0 entries does nothing.
 TEST_P(GLES2DecoderDoCommandsTest, DoCommandsOneOfZero) {
   int num_processed = -1;
   SetExpectationsForNCommands(0);
   EXPECT_EQ(
       error::kNoError,
       decoder_->DoCommands(1, &cmds_, entries_per_cmd_ * 0, &num_processed));
   EXPECT_EQ(GL_NO_ERROR, GetGLError());
   EXPECT_EQ(0, num_processed);
 }
@@ skipping 90 matching lines @@
 INSTANTIATE_TEST_CASE_P(Service, GLES2DecoderDoCommandsTest, ::testing::Bool());
 
 INSTANTIATE_TEST_CASE_P(Service, GLES3DecoderTest, ::testing::Bool());
 
 INSTANTIATE_TEST_CASE_P(Service,
                         GLES3DecoderWithESSL3ShaderTest,
                         ::testing::Bool());
 
 }  // namespace gles2
 }  // namespace gpu