ui/ozone/platform/drm/gpu/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_GPU_DRM_UTIL_H_
   6 #define UI_OZONE_PLATFORM_DRM_GPU_DRM_UTIL_H_
   7
   8 #include "base/files/file_path.h"
   9 #include "base/macros.h"
  10 #include "base/memory/ref_counted.h"
  11 #include "base/memory/scoped_vector.h"
  12 #include "ui/ozone/platform/drm/gpu/scoped_drm_types.h"
  13
  14 typedef struct _drmModeModeInfo drmModeModeInfo;
  15
  16 namespace ui {
  17
  18 class DrmDevice;
  19 class ScreenManager;
  20
  21 // Representation of the information required to initialize and configure a
  22 // native display.
  23 class HardwareDisplayControllerInfo {
  24  public:
  25   HardwareDisplayControllerInfo(ScopedDrmConnectorPtr connector,
  26                                 ScopedDrmCrtcPtr crtc);
  27   ~HardwareDisplayControllerInfo();
  28
  29   drmModeConnector* connector() const { return connector_.get(); }
  30   drmModeCrtc* crtc() const { return crtc_.get(); }
  31
  32  private:
  33   ScopedDrmConnectorPtr connector_;
  34   ScopedDrmCrtcPtr crtc_;
  35
  36   DISALLOW_COPY_AND_ASSIGN(HardwareDisplayControllerInfo);
  37 };
  38
  39 // Looks-up and parses the native display configurations returning all available
  40 // displays.
  41 ScopedVector<HardwareDisplayControllerInfo> GetAvailableDisplayControllerInfos(
  42     int fd);
  43
  44 bool SameMode(const drmModeModeInfo& lhs, const drmModeModeInfo& rhs);
  45
  46 // Memory maps a DRM buffer.
  47 bool MapDumbBuffer(int fd, uint32_t handle, uint32_t size, void** pixels);
  48
  49 void ForceInitializationOfPrimaryDisplay(const scoped_refptr<DrmDevice>& drm,
  50                                          ScreenManager* screen_manager);
  51
  52 base::FilePath GetPrimaryDisplayCardPath();
  53
  54 }  // namespace ui
  55
  56 #endif  // UI_OZONE_PLATFORM_DRM_GPU_DRM_UTIL_H_