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/buffer_types.h"
  11 #include "ui/gfx/geometry/size.h"
  12 #include "ui/ozone/platform/drm/gpu/gbm_buffer_base.h"
  13 #include "ui/ozone/platform/drm/gpu/screen_manager.h"
  14 #include "ui/ozone/public/native_pixmap.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       gfx::BufferFormat format,
  27       const gfx::Size& size,
  28       gfx::BufferUsage usage);
  29   gfx::BufferUsage GetUsage() const { return usage_; }
  30
  31  private:
  32   GbmBuffer(const scoped_refptr<GbmDevice>& gbm,
  33             gbm_bo* bo,
  34             gfx::BufferUsage usage);
  35   ~GbmBuffer() override;
  36
  37   gfx::BufferUsage usage_;
  38
  39   DISALLOW_COPY_AND_ASSIGN(GbmBuffer);
  40 };
  41
  42 class GbmPixmap : public NativePixmap {
  43  public:
  44   GbmPixmap(const scoped_refptr<GbmBuffer>& buffer,
  45             ScreenManager* screen_manager);
  46   bool Initialize();
  47   void SetScalingCallback(const ScalingCallback& scaling_callback) override;
  48   scoped_refptr<NativePixmap> GetScaledPixmap(gfx::Size new_size) override;
  49
  50   // NativePixmap:
  51   void* GetEGLClientBuffer() override;
  52   int GetDmaBufFd() override;
  53   int GetDmaBufPitch() override;
  54   bool ScheduleOverlayPlane(gfx::AcceleratedWidget widget,
  55                             int plane_z_order,
  56                             gfx::OverlayTransform plane_transform,
  57                             const gfx::Rect& display_bounds,
  58                             const gfx::RectF& crop_rect) override;
  59   gfx::NativePixmapHandle ExportHandle() override;
  60
  61   scoped_refptr<GbmBuffer> buffer() { return buffer_; }
  62
  63  private:
  64   ~GbmPixmap() override;
  65   bool ShouldApplyScaling(const gfx::Rect& display_bounds,
  66                           const gfx::RectF& crop_rect,
  67                           gfx::Size* required_size);
  68
  69   scoped_refptr<GbmBuffer> buffer_;
  70   int dma_buf_ = -1;
  71
  72   ScreenManager* screen_manager_;  // Not owned.
  73
  74   ScalingCallback scaling_callback_;
  75
  76   DISALLOW_COPY_AND_ASSIGN(GbmPixmap);
  77 };
  78
  79 }  // namespace ui
  80
  81 #endif  // UI_OZONE_PLATFORM_DRM_GPU_GBM_BUFFER_H_