content/common/gpu/media/vaapi_drm_picture.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 // This file contains an implementation of picture allocation for the
   6 // Ozone window system used by VaapiVideoDecodeAccelerator to produce
   7 // output pictures.
   8
   9 #ifndef CONTENT_COMMON_GPU_MEDIA_VAAPI_DRM_PICTURE_H_
  10 #define CONTENT_COMMON_GPU_MEDIA_VAAPI_DRM_PICTURE_H_
  11
  12 #include "base/callback.h"
  13 #include "base/memory/ref_counted.h"
  14 #include "base/memory/weak_ptr.h"
  15 #include "content/common/gpu/media/vaapi_picture.h"
  16 #include "ui/gfx/geometry/size.h"
  17
  18 namespace gfx {
  19 class GLImage;
  20 }
  21
  22 namespace ui {
  23 class NativePixmap;
  24 }
  25
  26 namespace content {
  27
  28 class VaapiWrapper;
  29
  30 // Implementation of VaapiPicture for the ozone/drm backed chromium.
  31 class VaapiDrmPicture : public VaapiPicture {
  32  public:
  33   VaapiDrmPicture(VaapiWrapper* vaapi_wrapper,
  34                   const base::Callback<bool(void)>& make_context_current,
  35                   int32 picture_buffer_id,
  36                   uint32 texture_id,
  37                   const gfx::Size& size);
  38
  39   ~VaapiDrmPicture() override;
  40
  41   bool Initialize() override;
  42
  43   bool DownloadFromSurface(const scoped_refptr<VASurface>& va_surface) override;
  44
  45   scoped_refptr<gfx::GLImage> GetImageToBind() override;
  46
  47   bool AllowOverlay() const override;
  48
  49  private:
  50   // Calls ScalePixmap() if weak_ptr is not NULL.
  51   static scoped_refptr<ui::NativePixmap> CallScalePixmap(
  52       base::WeakPtr<VaapiDrmPicture> weak_ptr,
  53       gfx::Size new_size);
  54   // Use VPP to scale underlying pixmap_ to |new_size| and return the
  55   // scaling result with a new pixmap.
  56   scoped_refptr<ui::NativePixmap> ScalePixmap(gfx::Size new_size);
  57   scoped_refptr<VASurface> CreateVASurfaceForPixmap(
  58       scoped_refptr<ui::NativePixmap> pixmap,
  59       gfx::Size pixmap_size);
  60   scoped_refptr<ui::NativePixmap> CreateNativePixmap(gfx::Size size);
  61
  62   VaapiWrapper* vaapi_wrapper_;  // Not owned.
  63   base::Callback<bool(void)> make_context_current_;
  64
  65   // Ozone buffer, the storage of the EGLImage and the VASurface.
  66   scoped_refptr<ui::NativePixmap> pixmap_;
  67
  68   // Ozone buffer, the storage of the scaled buffer for overlay.
  69   scoped_refptr<ui::NativePixmap> scaled_pixmap_;
  70
  71   // EGLImage bound to the GL textures used by the VDA client.
  72   scoped_refptr<gfx::GLImage> gl_image_;
  73
  74   // VASurface used to transfer from the decoder's pixel format.
  75   scoped_refptr<VASurface> va_surface_;
  76
  77   // VaSurface used to apply scaling.
  78   scoped_refptr<VASurface> scaled_va_surface_;
  79
  80   // The WeakPtrFactory for VaapiDrmPicture.
  81   base::WeakPtrFactory<VaapiDrmPicture> weak_this_factory_;
  82
  83   DISALLOW_COPY_AND_ASSIGN(VaapiDrmPicture);
  84 };
  85
  86 }  // namespace content
  87
  88 #endif  // CONTENT_COMMON_GPU_MEDIA_VAAPI_DRM_PICTURE_H_