// Copyright 2014 The Chromium Authors. All rights reserved. // Use of this source code is governed by a BSD-style license that can be // found in the LICENSE file. #ifndef UI_GFX_NATIVE_PIXMAP_H_ #define UI_GFX_NATIVE_PIXMAP_H_ #include "base/memory/ref_counted.h" #include "ui/gfx/buffer_types.h" #include "ui/gfx/geometry/size.h" #include "ui/gfx/native_pixmap_handle.h" #include "ui/gfx/native_widget_types.h" namespace gfx { struct OverlayPlaneData; class GpuFence; // This represents a buffer that can be directly imported via GL for // rendering, or exported via dma-buf fds. class NativePixmap : public base::RefCountedThreadSafe { public: NativePixmap() {} NativePixmap(const NativePixmap&) = delete; NativePixmap& operator=(const NativePixmap&) = delete; virtual bool AreDmaBufFdsValid() const = 0; virtual int GetDmaBufFd(size_t plane) const = 0; virtual uint32_t GetDmaBufPitch(size_t plane) const = 0; virtual size_t GetDmaBufOffset(size_t plane) const = 0; virtual size_t GetDmaBufPlaneSize(size_t plane) const = 0; // Return the number of non-interleaved "color" planes. virtual size_t GetNumberOfPlanes() const = 0; virtual bool SupportsZeroCopyWebGPUImport() const = 0; // The following methods return format, modifier and size of the buffer, // respectively. virtual gfx::BufferFormat GetBufferFormat() const = 0; virtual uint64_t GetBufferFormatModifier() const = 0; virtual gfx::Size GetBufferSize() const = 0; // Return an id that is guaranteed to be unique and equal for all instances // of this NativePixmap backed by the same buffer, for the duration of its // lifetime. If such id cannot be generated, 0 (an invalid id) is returned. // // TODO(posciak): crbug.com/771863, remove this once a different mechanism // for protected shared memory buffers is implemented. virtual uint32_t GetUniqueId() const = 0; // Sets the overlay plane to switch to at the next page flip. // |widget| specifies the screen to display this overlay plane on. // |acquire_fences| specifies gpu fences to wait on before the pixmap is ready // to be displayed. These fence are fired when the gpu has finished writing to // the pixmap. // |release_fences| specifies gpu fences that are signalled when the pixmap // has been displayed and is ready for reuse. // |overlay_plane_data| specifies overlay data such as opacity, z_order, size, // etc. virtual bool ScheduleOverlayPlane( gfx::AcceleratedWidget widget, const gfx::OverlayPlaneData& overlay_plane_data, std::vector acquire_fences, std::vector release_fences) = 0; // Export the buffer for sharing across processes. // Any file descriptors in the exported handle are owned by the caller. virtual gfx::NativePixmapHandle ExportHandle() = 0; protected: virtual ~NativePixmap() {} private: friend class base::RefCountedThreadSafe; }; } // namespace gfx #endif // UI_GFX_NATIVE_PIXMAP_H_