ui/ozone/platform/drm/common/drm_util.h

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef UI_OZONE_PLATFORM_DRM_COMMON_DRM_UTIL_H_
   6 #define UI_OZONE_PLATFORM_DRM_COMMON_DRM_UTIL_H_
   7
   8 #include "base/files/file_path.h"
   9 #include "base/macros.h"
  10 #include "base/memory/scoped_vector.h"
  11 #include "ui/ozone/common/gpu/ozone_gpu_message_params.h"
  12 #include "ui/ozone/platform/drm/common/scoped_drm_types.h"
  13
  14 typedef struct _drmModeModeInfo drmModeModeInfo;
  15
  16 namespace gfx {
  17 class Point;
  18 }
  19
  20 namespace ui {
  21
  22 // Representation of the information required to initialize and configure a
  23 // native display.
  24 class HardwareDisplayControllerInfo {
  25  public:
  26   HardwareDisplayControllerInfo(ScopedDrmConnectorPtr connector,
  27                                 ScopedDrmCrtcPtr crtc);
  28   ~HardwareDisplayControllerInfo();
  29
  30   drmModeConnector* connector() const { return connector_.get(); }
  31   drmModeCrtc* crtc() const { return crtc_.get(); }
  32
  33  private:
  34   ScopedDrmConnectorPtr connector_;
  35   ScopedDrmCrtcPtr crtc_;
  36
  37   DISALLOW_COPY_AND_ASSIGN(HardwareDisplayControllerInfo);
  38 };
  39
  40 // Looks-up and parses the native display configurations returning all available
  41 // displays.
  42 ScopedVector<HardwareDisplayControllerInfo> GetAvailableDisplayControllerInfos(
  43     int fd);
  44
  45 bool SameMode(const drmModeModeInfo& lhs, const drmModeModeInfo& rhs);
  46
  47 DisplayMode_Params CreateDisplayModeParams(const drmModeModeInfo& mode);
  48
  49 // |info| provides the DRM information related to the display, |fd| is the
  50 // connection to the DRM device and |index| provides a unique identifier for the
  51 // display. |index| will be used to generate the display id (it may be the id if
  52 // the monitor's EDID lacks the necessary identifiers).
  53 DisplaySnapshot_Params CreateDisplaySnapshotParams(
  54     HardwareDisplayControllerInfo* info,
  55     int fd,
  56     size_t display_index,
  57     const gfx::Point& origin);
  58
  59 }  // namespace ui
  60
  61 #endif  // UI_OZONE_PLATFORM_DRM_COMMON_DRM_UTIL_H_