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_SCANOUT_BUFFER_H_ 6 #define UI_OZONE_PLATFORM_DRI_SCANOUT_BUFFER_H_ 7 8 #include <stdint.h> 9 10 #include "base/memory/ref_counted.h" 11 #include "ui/gfx/geometry/size.h" 12 13 namespace ui { 14 15 // Abstraction for a DRM buffer that can be scanned-out of. 16 class ScanoutBuffer : public base::RefCounted<ScanoutBuffer> { 17 public: 18 // ID allocated by the KMS API when the buffer is registered (via the handle). 19 virtual uint32_t GetFramebufferId() const = 0; 20 21 // Handle for the buffer. This is received when allocating the buffer. 22 virtual uint32_t GetHandle() const = 0; 23 24 // Size of the buffer. 25 virtual gfx::Size GetSize() const = 0; 26 27 protected: ~ScanoutBuffer()28 virtual ~ScanoutBuffer() {} 29 30 friend class base::RefCounted<ScanoutBuffer>; 31 }; 32 33 class ScanoutBufferGenerator { 34 public: ~ScanoutBufferGenerator()35 virtual ~ScanoutBufferGenerator() {} 36 37 virtual scoped_refptr<ScanoutBuffer> Create(const gfx::Size& size) = 0; 38 }; 39 40 } // namespace ui 41 42 #endif // UI_OZONE_PLATFORM_DRI_SCANOUT_BUFFER_H_ 43