// Copyright (c) 2009 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.

#ifndef GPU_COMMAND_BUFFER_CLIENT_GLES2_CMD_HELPER_H_
#define GPU_COMMAND_BUFFER_CLIENT_GLES2_CMD_HELPER_H_

#include "../client/cmd_buffer_helper.h"
#include "../common/gles2_cmd_format.h"

namespace gpu {
namespace gles2 {

// A class that helps write GL command buffers.
class GLES2CmdHelper : public CommandBufferHelper {
 public:
  explicit GLES2CmdHelper(CommandBuffer* command_buffer)
      : CommandBufferHelper(command_buffer) {
  }
  virtual ~GLES2CmdHelper() {
  }

  // Include the auto-generated part of this class. 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 "../client/gles2_cmd_helper_autogen.h"

  // Helpers that could not be auto-generated.
  // TODO(gman): Auto generate these.

  void GetAttribLocation(
      GLuint program, uint32 name_shm_id, uint32 name_shm_offset,
      uint32 location_shm_id, uint32 location_shm_offset, uint32 data_size) {
    gles2::GetAttribLocation& c = GetCmdSpace<gles2::GetAttribLocation>();
    c.Init(
        program, name_shm_id, name_shm_offset, location_shm_id,
        location_shm_offset, data_size);
  }

  void GetAttribLocationImmediate(
      GLuint program, const char* name,
      uint32 location_shm_id, uint32 location_shm_offset) {
    const uint32 size = gles2::GetAttribLocationImmediate::ComputeSize(name);
    gles2::GetAttribLocationImmediate& c =
        GetImmediateCmdSpaceTotalSize<gles2::GetAttribLocationImmediate>(size);
    c.Init(program, name, location_shm_id, location_shm_offset);
  }

  void GetAttribLocationBucket(
      GLuint program, uint32 name_bucket_id,
      uint32 location_shm_id, uint32 location_shm_offset) {
    gles2::GetAttribLocationBucket& c =
        GetCmdSpace<gles2::GetAttribLocationBucket>();
    c.Init(program, name_bucket_id, location_shm_id, location_shm_offset);
  }

  void GetUniformLocation(
      GLuint program, uint32 name_shm_id, uint32 name_shm_offset,
      uint32 location_shm_id, uint32 location_shm_offset, uint32 data_size) {
    gles2::GetUniformLocation& c = GetCmdSpace<gles2::GetUniformLocation>();
    c.Init(
        program, name_shm_id, name_shm_offset, location_shm_id,
        location_shm_offset, data_size);
  }

  void GetUniformLocationImmediate(
      GLuint program, const char* name,
      uint32 location_shm_id, uint32 location_shm_offset) {
    const uint32 size = gles2::GetUniformLocationImmediate::ComputeSize(name);
    gles2::GetUniformLocationImmediate& c =
        GetImmediateCmdSpaceTotalSize<gles2::GetUniformLocationImmediate>(size);
    c.Init(program, name, location_shm_id, location_shm_offset);
  }

  void GetUniformLocationBucket(
      GLuint program, uint32 name_bucket_id,
      uint32 location_shm_id, uint32 location_shm_offset) {
    gles2::GetUniformLocationBucket& c =
        GetCmdSpace<gles2::GetUniformLocationBucket>();
    c.Init(program, name_bucket_id, location_shm_id, location_shm_offset);
  }

 private:
  DISALLOW_COPY_AND_ASSIGN(GLES2CmdHelper);
};

}  // namespace gles2
}  // namespace gpu

#endif  // GPU_COMMAND_BUFFER_CLIENT_GLES2_CMD_HELPER_H_