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