Rename ClientNativePixmapFactoryGbm to ClientNativePixmapFactoryDmabuf amd move to ui/gfx

ui/ozone/platform/drm/common/client_native_pixmap_dmabuf.cc

-// Copyright 2016 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/drm/common/client_native_pixmap_dmabuf.h"
-
-#include <fcntl.h>
-#include <linux/version.h>
-#include <stddef.h>
-#include <sys/mman.h>
-#include <xf86drm.h>
-
-#include "base/debug/crash_logging.h"
-#include "base/memory/ptr_util.h"
-#include "base/process/memory.h"
-#include "base/process/process_metrics.h"
-#include "base/strings/stringprintf.h"
-#include "base/trace_event/trace_event.h"
-
-#if LINUX_VERSION_CODE < KERNEL_VERSION(4, 6, 0)
-#include <linux/types.h>
-
-struct local_dma_buf_sync {
-  __u64 flags;
-};
-
-#define LOCAL_DMA_BUF_SYNC_READ (1 << 0)
-#define LOCAL_DMA_BUF_SYNC_WRITE (2 << 0)
-#define LOCAL_DMA_BUF_SYNC_RW \
-  (LOCAL_DMA_BUF_SYNC_READ | LOCAL_DMA_BUF_SYNC_WRITE)
-#define LOCAL_DMA_BUF_SYNC_START (0 << 2)
-#define LOCAL_DMA_BUF_SYNC_END (1 << 2)
-
-#define LOCAL_DMA_BUF_BASE 'b'
-#define LOCAL_DMA_BUF_IOCTL_SYNC \
-  _IOW(LOCAL_DMA_BUF_BASE, 0, struct local_dma_buf_sync)
-
-#else
-#include <linux/dma-buf.h>
-#endif
-
-namespace ui {
-
-namespace {
-
-void PrimeSyncStart(int dmabuf_fd) {
-  struct local_dma_buf_sync sync_start = {0};
-
-  sync_start.flags = LOCAL_DMA_BUF_SYNC_START | LOCAL_DMA_BUF_SYNC_RW;
-  if (drmIoctl(dmabuf_fd, LOCAL_DMA_BUF_IOCTL_SYNC, &sync_start))
-    PLOG(ERROR) << "Failed DMA_BUF_SYNC_START";
-}
-
-void PrimeSyncEnd(int dmabuf_fd) {
-  struct local_dma_buf_sync sync_end = {0};
-
-  sync_end.flags = LOCAL_DMA_BUF_SYNC_END | LOCAL_DMA_BUF_SYNC_RW;
-  if (drmIoctl(dmabuf_fd, LOCAL_DMA_BUF_IOCTL_SYNC, &sync_end))
-    PLOG(ERROR) << "Failed DMA_BUF_SYNC_END";
-}
-
-}  // namespace
-
-// static
-std::unique_ptr<ClientNativePixmap> ClientNativePixmapDmaBuf::ImportFromDmabuf(
-    const gfx::NativePixmapHandle& handle,
-    const gfx::Size& size) {
-  return base::WrapUnique(new ClientNativePixmapDmaBuf(handle, size));
-}
-
-ClientNativePixmapDmaBuf::ClientNativePixmapDmaBuf(
-    const gfx::NativePixmapHandle& handle,
-    const gfx::Size& size)
-    : pixmap_handle_(handle), size_(size), data_{0} {
-  TRACE_EVENT0("drm", "ClientNativePixmapDmaBuf");
-  // TODO(dcastagna): support multiple fds.
-  DCHECK_EQ(1u, handle.fds.size());
-  DCHECK_GE(handle.fds.front().fd, 0);
-  dmabuf_fd_.reset(handle.fds.front().fd);
-
-  DCHECK_GE(handle.planes.back().size, 0u);
-  size_t map_size = handle.planes.back().offset + handle.planes.back().size;
-  data_ = mmap(nullptr, map_size, (PROT_READ | PROT_WRITE), MAP_SHARED,
-               dmabuf_fd_.get(), 0);
-  if (data_ == MAP_FAILED) {
-    // TODO(dcastagna): Remove the following diagnostic information and the
-    // associated crash keys once crbug.com/629521 is fixed.
-    logging::SystemErrorCode mmap_error = logging::GetLastSystemErrorCode();
-    bool fd_valid = fcntl(dmabuf_fd_.get(), F_GETFD) != -1 ||
-                    logging::GetLastSystemErrorCode() != EBADF;
-    std::string mmap_params = base::StringPrintf(
-        "(addr=nullptr, length=%zu, prot=(PROT_READ | PROT_WRITE), "
-        "flags=MAP_SHARED, fd=%d[valid=%d], offset=0)",
-        map_size, dmabuf_fd_.get(), fd_valid);
-    std::string errno_str = logging::SystemErrorCodeToString(mmap_error);
-    std::unique_ptr<base::ProcessMetrics> process_metrics(
-        base::ProcessMetrics::CreateCurrentProcessMetrics());
-    std::string number_of_fds =
-        base::StringPrintf("%d", process_metrics->GetOpenFdCount());
-    base::debug::ScopedCrashKey params_crash_key("mmap_params", mmap_params);
-    base::debug::ScopedCrashKey size_crash_key("buffer_size", size.ToString());
-    base::debug::ScopedCrashKey errno_crash_key("errno", errno_str);
-    base::debug::ScopedCrashKey number_of_fds_crash_key("number_of_fds",
-                                                        number_of_fds);
-    LOG(ERROR) << "Failed to mmap dmabuf; mmap_params: " << mmap_params
-               << ", buffer_size: (" << size.ToString()
-               << "),  errno: " << errno_str
-               << " , number_of_fds: " << number_of_fds;
-    if (mmap_error == ENOMEM)
-      base::TerminateBecauseOutOfMemory(map_size);
-    CHECK(false) << "Failed to mmap dmabuf.";
-  }
-}
-
-ClientNativePixmapDmaBuf::~ClientNativePixmapDmaBuf() {
-  TRACE_EVENT0("drm", "~ClientNativePixmapDmaBuf");
-  size_t map_size =
-      pixmap_handle_.planes.back().offset + pixmap_handle_.planes.back().size;
-  int ret = munmap(data_, map_size);
-  DCHECK(!ret);
-}
-
-bool ClientNativePixmapDmaBuf::Map() {
-  TRACE_EVENT0("drm", "DmaBuf:Map");
-  if (data_ != nullptr) {
-    PrimeSyncStart(dmabuf_fd_.get());
-    return true;
-  }
-  return false;
-}
-
-void ClientNativePixmapDmaBuf::Unmap() {
-  TRACE_EVENT0("drm", "DmaBuf:Unmap");
-  PrimeSyncEnd(dmabuf_fd_.get());
-}
-
-void* ClientNativePixmapDmaBuf::GetMemoryAddress(size_t plane) const {
-  DCHECK_LT(plane, pixmap_handle_.planes.size());
-  uint8_t* address = reinterpret_cast<uint8_t*>(data_);
-  return address + pixmap_handle_.planes[plane].offset;
-}
-
-int ClientNativePixmapDmaBuf::GetStride(size_t plane) const {
-  DCHECK_LT(plane, pixmap_handle_.planes.size());
-  return pixmap_handle_.planes[plane].stride;
-}
-
-}  // namespace ui