[Ozone-GBM] Migrate GBM buffers to use the ScanoutBuffer interface

ui/ozone/platform/dri/buffer_data.cc

-// 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.
-
-#include "ui/ozone/platform/dri/buffer_data.h"
-
-#include <gbm.h>
-
-#include "base/logging.h"
-#include "ui/ozone/platform/dri/dri_wrapper.h"
-
-namespace ui {
-
-// Pixel configuration for the current buffer format.
-// TODO(dnicoara) These will need to change once we query the hardware for
-// supported configurations.
-const uint8_t kColorDepth = 24;
-const uint8_t kPixelDepth = 32;
-
-BufferData::BufferData(DriWrapper* dri, gbm_bo* buffer)
-    : dri_(dri),
-      handle_(gbm_bo_get_handle(buffer).u32),
-      framebuffer_(0) {
-  // Register the buffer with the controller. This will allow us to scan out the
-  // buffer once we're done drawing into it. If we can't register the buffer
-  // then there's no point in having BufferData associated with it.
-  if (!dri_->AddFramebuffer(gbm_bo_get_width(buffer),
-                            gbm_bo_get_height(buffer),
-                            kColorDepth,
-                            kPixelDepth,
-                            gbm_bo_get_stride(buffer),
-                            handle_,
-                            &framebuffer_)) {
-    LOG(ERROR) << "Failed to register buffer";
-  }
-}
-
-BufferData::~BufferData() {
-  if (framebuffer_)
-    dri_->RemoveFramebuffer(framebuffer_);
-}
-
-// static
-BufferData* BufferData::CreateData(DriWrapper* dri,
-                                   gbm_bo* buffer) {
-  BufferData* data = new BufferData(dri, buffer);
-  if (!data->framebuffer()) {
-    delete data;
-    return NULL;
-  }
-
-  // GBM can destroy the buffers at any time as long as they aren't locked. This
-  // sets a callback such that we can clean up all our state when GBM destroys
-  // the buffer.
-  gbm_bo_set_user_data(buffer, data, BufferData::Destroy);
-
-  return data;
-}
-
-// static
-void BufferData::Destroy(gbm_bo* buffer, void* data) {
-  BufferData* bd = static_cast<BufferData*>(data);
-  delete bd;
-}
-
-// static
-BufferData* BufferData::GetData(gbm_bo* buffer) {
-  return static_cast<BufferData*>(gbm_bo_get_user_data(buffer));
-}
-
-}  // namespace ui