ui/ozone/platform/drm/gpu/gbm_buffer.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_GBM_BUFFER_H_
   6 #define UI_OZONE_PLATFORM_DRM_GPU_GBM_BUFFER_H_
   7
   8 #include "base/macros.h"
   9 #include "base/memory/scoped_ptr.h"
  10 #include "ui/gfx/geometry/size.h"
  11 #include "ui/ozone/platform/drm/gpu/gbm_buffer_base.h"
  12 #include "ui/ozone/platform/drm/gpu/screen_manager.h"
  13 #include "ui/ozone/public/native_pixmap.h"
  14 #include "ui/ozone/public/surface_factory_ozone.h"
  15
  16 struct gbm_bo;
  17
  18 namespace ui {
  19
  20 class GbmDevice;
  21
  22 class GbmBuffer : public GbmBufferBase {
  23  public:
  24   static scoped_refptr<GbmBuffer> CreateBuffer(
  25       const scoped_refptr<GbmDevice>& gbm,
  26       SurfaceFactoryOzone::BufferFormat format,
  27       const gfx::Size& size,
  28       bool scanout);
  29
  30  private:
  31   GbmBuffer(const scoped_refptr<GbmDevice>& gbm, gbm_bo* bo, bool scanout);
  32   ~GbmBuffer() override;
  33
  34   DISALLOW_COPY_AND_ASSIGN(GbmBuffer);
  35 };
  36
  37 class GbmPixmap : public NativePixmap {
  38  public:
  39   GbmPixmap(const scoped_refptr<GbmBuffer>& buffer,
  40             ScreenManager* screen_manager);
  41   bool Initialize();
  42   void SetScalingCallback(const ScalingCallback& scaling_callback) override;
  43   scoped_refptr<NativePixmap> GetScaledPixmap(gfx::Size new_size) override;
  44
  45   // NativePixmap:
  46   void* GetEGLClientBuffer() override;
  47   int GetDmaBufFd() override;
  48   int GetDmaBufPitch() override;
  49   bool ScheduleOverlayPlane(gfx::AcceleratedWidget widget,
  50                             int plane_z_order,
  51                             gfx::OverlayTransform plane_transform,
  52                             const gfx::Rect& display_bounds,
  53                             const gfx::RectF& crop_rect) override;
  54
  55   scoped_refptr<GbmBuffer> buffer() { return buffer_; }
  56
  57  private:
  58   ~GbmPixmap() override;
  59   bool ShouldApplyScaling(const gfx::Rect& display_bounds,
  60                           const gfx::RectF& crop_rect,
  61                           gfx::Size* required_size);
  62
  63   scoped_refptr<GbmBuffer> buffer_;
  64   int dma_buf_ = -1;
  65
  66   ScreenManager* screen_manager_;  // Not owned.
  67
  68   ScalingCallback scaling_callback_;
  69
  70   DISALLOW_COPY_AND_ASSIGN(GbmPixmap);
  71 };
  72
  73 }  // namespace ui
  74
  75 #endif  // UI_OZONE_PLATFORM_DRM_GPU_GBM_BUFFER_H_